Huge cleanups and added open gl window

src/editor/dialogs/addeventdialog.cpp

@@ -0,0 +1,50 @@
+#include "addeventdialog.h"
+#include "ui_addeventdialog.h"
+
+#include <QMessageBox>
+
+AddEventDialog::AddEventDialog(QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::AddEventDialog>()}
+{
+    m_ui->setupUi(this);
+
+#ifdef Q_OS_LINUX
+    setWindowFlags((windowFlags() & ~Qt::Dialog) | Qt::Window);
+#endif
+    setWindowFlag(Qt::WindowCloseButtonHint);
+
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Ok))
+        button->setIcon(QIcon{":/qtgameengine/icons/ok.png"});
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Cancel))
+        button->setIcon(QIcon{":/qtgameengine/icons/delete.png"});
+
+    connect(m_ui->pushButtonCreate, &QAbstractButton::clicked,
+            this, [this](){ m_eventType = Object::EventType::Create; accept(); });
+    connect(m_ui->pushButtonDestroy, &QAbstractButton::clicked,
+            this, [this](){ m_eventType = Object::EventType::Destroy; accept(); });
+    connect(m_ui->pushButtonDraw, &QAbstractButton::clicked,
+            this, [this](){ m_eventType = Object::EventType::Draw; accept(); });
+    connect(m_ui->pushButtonStep, &QAbstractButton::clicked,
+            this, [this](){ m_eventType = Object::EventType::Step; accept(); });
+}
+
+AddEventDialog::~AddEventDialog() = default;
+
+void AddEventDialog::accept()
+{
+    if (!m_eventType)
+    {
+        QMessageBox::warning(this, tr("No Event selected!"), tr("No Event selected!"));
+        return;
+    }
+
+    QDialog::accept();
+}
+
+void AddEventDialog::reject()
+{
+    m_eventType = std::nullopt;
+
+    QDialog::reject();
+}

src/editor/dialogs/addeventdialog.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <QDialog>
+
+#include <optional>
+
+#include "projectcontainer.h"
+
+namespace Ui { class AddEventDialog; }
+
+class AddEventDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit AddEventDialog(QWidget *parent = nullptr);
+    ~AddEventDialog();
+
+    Object::EventType eventType() const { return *m_eventType; }
+
+    void accept() override;
+    void reject() override;
+
+private:
+    const std::unique_ptr<Ui::AddEventDialog> m_ui;
+
+    std::optional<Object::EventType> m_eventType;
+};

src/editor/dialogs/addeventdialog.ui

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>AddEventDialog</class>
+ <widget class="QDialog" name="AddEventDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>265</width>
+    <height>221</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Choose the Event to Add</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout" stretch="1,0">
+   <item>
+    <layout class="QGridLayout" name="gridLayout">
+     <item row="2" column="1">
+      <widget class="QPushButton" name="pushButtonDraw">
+       <property name="text">
+        <string>Dra&amp;w</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../resources.qrc">
+         <normaloff>:/qtgameengine/icons/event-draw.png</normaloff>:/qtgameengine/icons/event-draw.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="1">
+      <widget class="QPushButton" name="pushButtonMouse">
+       <property name="text">
+        <string>&amp;Mouse</string>
+       </property>
+      </widget>
+     </item>
+     <item row="4" column="1">
+      <widget class="QPushButton" name="pushButtonKeyRelease">
+       <property name="text">
+        <string>Ke&amp;y Release</string>
+       </property>
+      </widget>
+     </item>
+     <item row="2" column="0">
+      <widget class="QPushButton" name="pushButtonAlarm">
+       <property name="text">
+        <string>&amp;Alarm</string>
+       </property>
+      </widget>
+     </item>
+     <item row="3" column="0">
+      <widget class="QPushButton" name="pushButtonStep">
+       <property name="text">
+        <string>&amp;Step</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../resources.qrc">
+         <normaloff>:/qtgameengine/icons/event-step.png</normaloff>:/qtgameengine/icons/event-step.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="0">
+      <widget class="QPushButton" name="pushButtonCreate">
+       <property name="text">
+        <string>C&amp;reate</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../resources.qrc">
+         <normaloff>:/qtgameengine/icons/event-create.png</normaloff>:/qtgameengine/icons/event-create.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="1">
+      <widget class="QPushButton" name="pushButtonOther">
+       <property name="text">
+        <string>O&amp;ther</string>
+       </property>
+      </widget>
+     </item>
+     <item row="4" column="0">
+      <widget class="QPushButton" name="pushButtonCollision">
+       <property name="text">
+        <string>C&amp;ollision</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="0">
+      <widget class="QPushButton" name="pushButtonDestroy">
+       <property name="text">
+        <string>&amp;Destroy</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../resources.qrc">
+         <normaloff>:/qtgameengine/icons/event-destroy.png</normaloff>:/qtgameengine/icons/event-destroy.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item row="3" column="1">
+      <widget class="QPushButton" name="pushButtonKeyPress">
+       <property name="text">
+        <string>Key &amp;Press</string>
+       </property>
+      </widget>
+     </item>
+     <item row="5" column="0">
+      <widget class="QPushButton" name="pushButtonKeyboard">
+       <property name="text">
+        <string>&amp;Keyboard</string>
+       </property>
+      </widget>
+     </item>
+     <item row="5" column="1">
+      <widget class="QPushButton" name="pushButtonTrigger">
+       <property name="text">
+        <string>&amp;Trigger</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel</set>
+     </property>
+     <property name="centerButtons">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../resources.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>AddEventDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>132</x>
+     <y>196</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>132</x>
+     <y>108</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>AddEventDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>132</x>
+     <y>196</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>132</x>
+     <y>108</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/backgroundpropertiesdialog.cpp

@@ -0,0 +1,205 @@
+#include "backgroundpropertiesdialog.h"
+#include "ui_backgroundpropertiesdialog.h"
+
+#include <QFileDialog>
+#include <QDebug>
+#include <QMessageBox>
+
+#include "projectcontainer.h"
+#include "models/projecttreemodel.h"
+#include "imageeditordialog.h"
+
+BackgroundPropertiesDialog::BackgroundPropertiesDialog(Background &background, ProjectTreeModel &projectModel, QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::BackgroundPropertiesDialog>()},
+    m_background{background},
+    m_projectModel{projectModel},
+    m_pixmap{m_background.pixmap}
+{
+    m_ui->setupUi(this);
+
+    updateTitle();
+
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Ok))
+        button->setIcon(QIcon{":/qtgameengine/icons/ok.png"});
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Cancel))
+        button->setIcon(QIcon{":/qtgameengine/icons/delete.png"});
+
+    m_ui->lineEditName->setText(m_background.name);
+    updateSpriteInfo();
+    m_ui->checkBoxTileset->setChecked(m_background.tileset);
+
+    connect(&m_projectModel, &ProjectTreeModel::backgroundNameChanged,
+            this, &BackgroundPropertiesDialog::backgroundNameChanged);
+
+    connect(m_ui->pushButtonLoad, &QAbstractButton::clicked,
+            this, &BackgroundPropertiesDialog::loadBackground);
+    connect(m_ui->pushButtonSave, &QAbstractButton::clicked,
+            this, &BackgroundPropertiesDialog::saveBackground);
+    connect(m_ui->pushButtonEdit, &QAbstractButton::clicked,
+            this, &BackgroundPropertiesDialog::editBackground);
+
+    connect(m_ui->lineEditName, &QLineEdit::textChanged,
+            this, &BackgroundPropertiesDialog::changed);
+    connect(m_ui->checkBoxTileset, &QCheckBox::stateChanged,
+            this, &BackgroundPropertiesDialog::changed);
+}
+
+BackgroundPropertiesDialog::~BackgroundPropertiesDialog() = default;
+
+void BackgroundPropertiesDialog::accept()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    if (m_background.name != m_ui->lineEditName->text())
+    {
+        if (!m_projectModel.rename<Background>(m_background, m_ui->lineEditName->text()))
+        {
+            QMessageBox::critical(this, tr("Renaming Background failed!"), tr("Renaming Background failed!"));
+            return;
+        }
+    }
+
+    if (!m_projectModel.setBackgroundPixmap(m_background, std::move(m_pixmap)))
+    {
+        QMessageBox::critical(this, tr("Setting Background pixmap failed!"), tr("Setting Background pixmap failed!"));
+        return;
+    }
+
+    m_background.tileset = m_ui->checkBoxTileset->isChecked();
+
+    QDialog::accept();
+}
+
+void BackgroundPropertiesDialog::reject()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    const auto result = QMessageBox::warning(
+        this,
+        tr("The Background has been modified."),
+        tr("Do you want to save your changes?"),
+        QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel,
+        QMessageBox::Save
+    );
+    switch (result)
+    {
+    case QMessageBox::Save:
+        accept();
+        return;
+    case QMessageBox::Discard:
+        QDialog::reject();
+        return;
+    case QMessageBox::Cancel:
+        return;
+    default:
+        qWarning() << "unexpected dialog result" << result;
+    }
+}
+
+void BackgroundPropertiesDialog::loadBackground()
+{
+    const auto path = QFileDialog::getOpenFileName(this, tr("Open a Background Image..."), {},
+                                                   QStringLiteral("%0 (*.png);;%1 (*.bmp);;%2 (*.tiff);;%3 (*.jpg *.jpeg);;%4 (*)")
+                                                       .arg(tr("PNG Files"))
+                                                       .arg(tr("BMP Files"))
+                                                       .arg(tr("TIFF Files"))
+                                                       .arg(tr("JPEG Files"))
+                                                       .arg(tr("All Files"))
+                                                   );
+    if (path.isEmpty())
+        return;
+
+    QPixmap pixmap;
+    if (!pixmap.load(path))
+    {
+        QMessageBox::warning(this, tr("Could not load sprite!"), tr("Could not load sprite!"));
+        return;
+    }
+
+    m_pixmap = std::move(pixmap);
+    changed();
+    updateSpriteInfo();
+}
+
+void BackgroundPropertiesDialog::saveBackground()
+{
+    if (m_pixmap.isNull())
+    {
+        QMessageBox::warning(this, tr("No background available to save!"), tr("No background available to save!"));
+        return;
+    }
+
+    const auto path = QFileDialog::getSaveFileName(this, tr("Save a Background Image..."), m_background.name + ".png",
+                                                   QStringLiteral("%0 (*.png);;%1 (*.bmp);;%2 (*.tiff);;%3 (*.jpg *.jpeg);;%4 (*)")
+                                                       .arg(tr("PNG Files"))
+                                                       .arg(tr("BMP Files"))
+                                                       .arg(tr("TIFF Files"))
+                                                       .arg(tr("JPEG Files"))
+                                                       .arg(tr("All Files"))
+                                                   );
+    if (path.isEmpty())
+        return;
+
+    if (!m_pixmap.save(path))
+    {
+        QMessageBox::warning(this, tr("Could not save Background!"), tr("Could not save Background!"));
+        return;
+    }
+}
+
+void BackgroundPropertiesDialog::editBackground()
+{
+    ImageEditorDialog dialog{m_pixmap, tr("Image Editor: %0").arg(m_background.name), this};
+    if (dialog.exec() == QDialog::Accepted)
+    {
+        m_pixmap = dialog.pixmap();
+        changed();
+        updateSpriteInfo();
+    }
+}
+
+void BackgroundPropertiesDialog::changed()
+{
+    if (!m_unsavedChanges)
+    {
+        m_unsavedChanges = true;
+        updateTitle();
+    }
+}
+
+void BackgroundPropertiesDialog::backgroundNameChanged(const Background &background)
+{
+    if (&background != &m_background)
+        return;
+
+    {
+        QSignalBlocker blocker{m_ui->lineEditName};
+        m_ui->lineEditName->setText(background.name);
+    }
+
+    updateTitle();
+}
+
+void BackgroundPropertiesDialog::updateTitle()
+{
+    setWindowTitle(tr("Background Properties: %0%1")
+                       .arg(m_background.name)
+                       .arg(m_unsavedChanges ? tr("*") : QString{})
+                   );
+}
+
+void BackgroundPropertiesDialog::updateSpriteInfo()
+{
+    m_ui->labelWidth->setText(tr("Width: %0").arg(m_pixmap.width()));
+    m_ui->labelHeight->setText(tr("Height: %0").arg(m_pixmap.height()));
+    m_ui->labelPreview->setPixmap(m_pixmap);
+}

src/editor/dialogs/backgroundpropertiesdialog.h

@@ -0,0 +1,44 @@
+#pragma once
+
+#include <QDialog>
+#include <QString>
+
+#include <memory>
+
+namespace Ui { class BackgroundPropertiesDialog; }
+struct Background;
+class ProjectTreeModel;
+
+class BackgroundPropertiesDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit BackgroundPropertiesDialog(Background &background, ProjectTreeModel &projectModel, QWidget *parent = nullptr);
+    ~BackgroundPropertiesDialog();
+
+    void accept() override;
+    void reject() override;
+
+private slots:
+    void loadBackground();
+    void saveBackground();
+    void editBackground();
+
+    void changed();
+
+    void backgroundNameChanged(const Background &background);
+
+private:
+    void updateTitle();
+    void updateSpriteInfo();
+
+    const std::unique_ptr<Ui::BackgroundPropertiesDialog> m_ui;
+
+    Background &m_background;
+    ProjectTreeModel &m_projectModel;
+
+    bool m_unsavedChanges{};
+
+    QPixmap m_pixmap;
+};

src/editor/dialogs/backgroundpropertiesdialog.ui

@@ -0,0 +1,217 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>BackgroundPropertiesDialog</class>
+ <widget class="QDialog" name="BackgroundPropertiesDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>597</width>
+    <height>295</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Dialog</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../resources.qrc">
+    <normaloff>:/qtgameengine/icons/background-file.png</normaloff>:/qtgameengine/icons/background-file.png</iconset>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout" stretch="0,1">
+   <item>
+    <layout class="QVBoxLayout" name="verticalLayout">
+     <item>
+      <layout class="QFormLayout" name="formLayout">
+       <item row="0" column="0">
+        <widget class="QLabel" name="labelName">
+         <property name="text">
+          <string>&amp;Name:</string>
+         </property>
+         <property name="buddy">
+          <cstring>lineEditName</cstring>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="1">
+        <widget class="QLineEdit" name="lineEditName">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="toolTip">
+          <string>The name of the background</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <spacer name="verticalSpacer">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>40</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButtonLoad">
+       <property name="toolTip">
+        <string>Load the background from a file</string>
+       </property>
+       <property name="text">
+        <string>&amp;Load Background</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../resources.qrc">
+         <normaloff>:/qtgameengine/icons/open.png</normaloff>:/qtgameengine/icons/open.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButtonSave">
+       <property name="toolTip">
+        <string>Save the background to a file</string>
+       </property>
+       <property name="text">
+        <string>&amp;Save Background</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../resources.qrc">
+         <normaloff>:/qtgameengine/icons/save.png</normaloff>:/qtgameengine/icons/save.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButtonEdit">
+       <property name="toolTip">
+        <string>Edit the background image</string>
+       </property>
+       <property name="text">
+        <string>&amp;Edit Background</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../resources.qrc">
+         <normaloff>:/qtgameengine/icons/edit.png</normaloff>:/qtgameengine/icons/edit.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_3">
+       <item>
+        <widget class="QLabel" name="labelWidth">
+         <property name="text">
+          <string>Width:</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLabel" name="labelHeight">
+         <property name="text">
+          <string>Height:</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <spacer name="verticalSpacer_2">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>40</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QCheckBox" name="checkBoxTileset">
+       <property name="toolTip">
+        <string>Indicate whether to use this background as a tile set</string>
+       </property>
+       <property name="text">
+        <string>&amp;Use as tile set</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QDialogButtonBox" name="buttonBox">
+       <property name="standardButtons">
+        <set>QDialogButtonBox::Ok</set>
+       </property>
+       <property name="centerButtons">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QScrollArea" name="scrollArea">
+     <property name="widgetResizable">
+      <bool>true</bool>
+     </property>
+     <widget class="QLabel" name="labelPreview">
+      <property name="geometry">
+       <rect>
+        <x>0</x>
+        <y>0</y>
+        <width>396</width>
+        <height>275</height>
+       </rect>
+      </property>
+      <property name="alignment">
+       <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignTop</set>
+      </property>
+     </widget>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../resources.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>BackgroundPropertiesDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>96</x>
+     <y>272</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>298</x>
+     <y>147</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>BackgroundPropertiesDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>96</x>
+     <y>272</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>298</x>
+     <y>147</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/codeactiondialog.cpp

@@ -0,0 +1,63 @@
+#include "codeactiondialog.h"
+
+#include <QRadioButton>
+#include <QLabel>
+#include <QMessageBox>
+
+#include "projectcontainer.h"
+
+CodeActionDialog::CodeActionDialog(Action &action, QWidget *parent) :
+    CodeEditorDialog{tr("Execute Code"), parent},
+    m_action{action},
+    m_radioButtonSelf{new QRadioButton{tr("Self"), this}},
+    m_radioButtonOther{new QRadioButton{tr("Other"), this}},
+    m_radioButtonObject{new QRadioButton{tr("Object"), this}}
+{
+#ifdef Q_OS_LINUX
+    setWindowFlags((windowFlags() & ~Qt::Dialog) | Qt::Window);
+#endif
+    setWindowFlag(Qt::WindowCloseButtonHint);
+
+    addToolbarWidget(new QLabel{tr("Applies to:"), this});
+    addToolbarWidget(m_radioButtonSelf);
+    addToolbarWidget(m_radioButtonOther);
+    addToolbarWidget(m_radioButtonObject);
+
+    m_radioButtonSelf->setChecked(m_action.appliesTo == Action::AppliesTo::Self);
+    m_radioButtonOther->setChecked(m_action.appliesTo == Action::AppliesTo::Other);
+    m_radioButtonObject->setChecked(m_action.appliesTo == Action::AppliesTo::Object);
+
+    setScript(m_action.script);
+
+    connect(m_radioButtonSelf, &QRadioButton::toggled,
+            this, &CodeActionDialog::changed);
+    connect(m_radioButtonOther, &QRadioButton::toggled,
+            this, &CodeActionDialog::changed);
+    connect(m_radioButtonObject, &QRadioButton::toggled,
+            this, &CodeActionDialog::changed);
+}
+
+void CodeActionDialog::accept()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    if (m_radioButtonSelf->isChecked())
+        m_action.appliesTo = Action::AppliesTo::Self;
+    else if (m_radioButtonOther->isChecked())
+        m_action.appliesTo = Action::AppliesTo::Other;
+    else if (m_radioButtonObject->isChecked())
+        m_action.appliesTo = Action::AppliesTo::Object;
+    else
+    {
+        QMessageBox::warning(this, tr("No Applies To selected!"), tr("No Applies To selected!"));
+        return;
+    }
+
+    m_action.script = script();
+
+    CodeEditorDialog::accept();
+}

src/editor/dialogs/codeactiondialog.h

@@ -0,0 +1,23 @@
+#pragma once
+
+#include "codeeditordialog.h"
+
+class QRadioButton;
+struct Action;
+
+class CodeActionDialog : public CodeEditorDialog
+{
+    Q_OBJECT
+
+public:
+    explicit CodeActionDialog(Action &action, QWidget *parent = nullptr);
+
+    void accept() override;
+
+private:
+    Action &m_action;
+
+    QRadioButton * const m_radioButtonSelf;
+    QRadioButton * const m_radioButtonOther;
+    QRadioButton * const m_radioButtonObject;
+};

src/editor/dialogs/codeeditordialog.cpp

@@ -0,0 +1,195 @@
+#include "codeeditordialog.h"
+#include "ui_codeeditordialog.h"
+
+#include <QDebug>
+#include <QFont>
+#include <QLabel>
+#include <QTextBlock>
+#include <QMessageBox>
+#include <QSignalBlocker>
+#include <QFileDialog>
+#include <QFile>
+
+#include "jshighlighter.h"
+
+CodeEditorDialog::CodeEditorDialog(const QString &title, QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::CodeEditorDialog>()},
+    m_title{title},
+    m_labelPosition{new QLabel{this}}
+{
+    m_ui->setupUi(this);
+
+    updateTitle();
+
+    m_labelPosition->setFrameStyle(QFrame::Sunken);
+    m_ui->statusbar->addWidget(m_labelPosition);
+
+    {
+        QFont font;
+        font.setFamily("Consolas");
+        font.setFixedPitch(true);
+        font.setPointSize(10);
+        m_ui->codeEdit->setFont(font);
+    }
+
+    new JSHighlighter{m_ui->codeEdit->document()};
+
+    updatePosition();
+
+    connect(m_ui->actionLoad, &QAction::triggered,
+            this, &CodeEditorDialog::loadCode);
+    connect(m_ui->actionSave, &QAction::triggered,
+            this, &CodeEditorDialog::saveCode);
+    connect(m_ui->actionPrint, &QAction::triggered,
+            this, &CodeEditorDialog::printCode);
+
+    connect(m_ui->codeEdit, &QPlainTextEdit::textChanged,
+            this, &CodeEditorDialog::changed);
+    connect(m_ui->codeEdit, &QPlainTextEdit::textChanged,
+            this, &CodeEditorDialog::updatePosition);
+    connect(m_ui->codeEdit, &QPlainTextEdit::cursorPositionChanged,
+            this, &CodeEditorDialog::updatePosition);
+}
+
+CodeEditorDialog::~CodeEditorDialog() = default;
+
+void CodeEditorDialog::accept()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    QDialog::accept();
+}
+
+void CodeEditorDialog::reject()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    const auto result = QMessageBox::warning(
+        this,
+        tr("The Script has been modified."),
+        tr("Do you want to save your changes?"),
+        QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel,
+        QMessageBox::Save
+    );
+    switch (result)
+    {
+    case QMessageBox::Save:
+        accept();
+        return;
+    case QMessageBox::Discard:
+        QDialog::reject();
+        return;
+    case QMessageBox::Cancel:
+        return;
+    default:
+        qWarning() << "unexpected dialog result" << result;
+    }
+}
+
+QString CodeEditorDialog::script() const
+{
+    return m_ui->codeEdit->toPlainText();
+}
+
+void CodeEditorDialog::setScript(const QString &script)
+{
+    QSignalBlocker blocker{m_ui->codeEdit};
+    m_ui->codeEdit->setPlainText(script);
+}
+
+void CodeEditorDialog::changed()
+{
+    if (!m_unsavedChanges)
+    {
+        m_unsavedChanges = true;
+        updateTitle();
+    }
+}
+
+void CodeEditorDialog::addToolbarWidget(QWidget *widget)
+{
+    m_ui->toolBar->addWidget(widget);
+}
+
+void CodeEditorDialog::loadCode()
+{
+    const auto path = QFileDialog::getOpenFileName(this, tr("Load Code from a Text File..."));
+    if (path.isEmpty())
+        return;
+
+    QFile file{path};
+    if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
+    {
+        QMessageBox::warning(this, tr("Could not open file!"), tr("Could not open file!") + "\n\n" + file.errorString());
+        return;
+    }
+
+    m_ui->codeEdit->setPlainText(QString::fromUtf8(file.readAll()));
+}
+
+void CodeEditorDialog::saveCode()
+{
+    const auto path = QFileDialog::getSaveFileName(this, tr("Save Code to a Text File..."));
+    if (path.isEmpty())
+        return;
+
+    QFile file{path};
+    if (!file.open(QIODevice::WriteOnly | QIODevice::Truncate))
+    {
+        QMessageBox::warning(this, tr("Could not open file!"), tr("Could not open file!") + "\n\n" + file.errorString());
+        return;
+    }
+
+    auto asUtf8 = script().toUtf8();
+    const auto size = asUtf8.size();
+    if (const auto written = file.write(std::move(asUtf8)); written != size)
+    {
+        QMessageBox::warning(this, tr("Could not write file!"), tr("Could not write file!") + "\n\n" + tr("written(%0) != size(%1)") + "\n\n" + file.errorString());
+        return;
+    }
+}
+
+void CodeEditorDialog::printCode()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void CodeEditorDialog::updatePosition()
+{
+    auto cursor = m_ui->codeEdit->textCursor();
+    auto position = cursor.position();
+    cursor.movePosition(QTextCursor::StartOfLine);
+    position -= cursor.position() - 1;
+
+    int lines = 1;
+    while (cursor.positionInBlock() > 0)
+    {
+        cursor.movePosition(QTextCursor::Up);
+        //lines++;
+    }
+    QTextBlock block = cursor.block().previous();
+    while (block.isValid())
+    {
+        lines += 1; //block.lineCount();
+        block = block.previous();
+    }
+
+    m_labelPosition->setText(tr("%0/%1: %2").arg(lines).arg(m_ui->codeEdit->blockCount()).arg(position));
+}
+
+void CodeEditorDialog::updateTitle()
+{
+    setWindowTitle(tr("%0%1")
+                       .arg(m_title)
+                       .arg(m_unsavedChanges ? tr("*") : QString{})
+                   );
+}

src/editor/dialogs/codeeditordialog.h

@@ -0,0 +1,50 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+
+class QLabel;
+namespace Ui { class CodeEditorDialog; }
+
+class CodeEditorDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit CodeEditorDialog(const QString &title, QWidget *parent = nullptr);
+    ~CodeEditorDialog();
+
+    void accept() override;
+    void reject() override;
+
+    const QString &title() const { return m_title; }
+    void setTitle(const QString &title) { if (m_title == title) return; m_title = title; updateTitle(); }
+
+    QString script() const;
+    void setScript(const QString &script);
+
+protected slots:
+    void changed();
+
+protected:
+    bool m_unsavedChanges{};
+
+    void addToolbarWidget(QWidget *widget);
+
+private slots:
+    void loadCode();
+    void saveCode();
+    void printCode();
+
+    void updatePosition();
+
+private:
+    void updateTitle();
+
+    const std::unique_ptr<Ui::CodeEditorDialog> m_ui;
+
+    QString m_title;
+
+    QLabel * const m_labelPosition;
+};

src/editor/dialogs/codeeditordialog.ui

@@ -0,0 +1,571 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>CodeEditorDialog</class>
+ <widget class="QDialog" name="CodeEditorDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>540</width>
+    <height>497</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Code Editor</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../resources.qrc">
+    <normaloff>:/qtgameengine/icons/script-file.png</normaloff>:/qtgameengine/icons/script-file.png</iconset>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout" stretch="0,1">
+   <property name="spacing">
+    <number>0</number>
+   </property>
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <widget class="QToolBar" name="toolBar">
+     <property name="windowTitle">
+      <string>toolBar</string>
+     </property>
+     <property name="movable">
+      <bool>false</bool>
+     </property>
+     <property name="iconSize">
+      <size>
+       <width>16</width>
+       <height>16</height>
+      </size>
+     </property>
+     <addaction name="actionOk"/>
+     <addaction name="separator"/>
+     <addaction name="actionLoad"/>
+     <addaction name="actionSave"/>
+     <addaction name="actionPrint"/>
+     <addaction name="separator"/>
+     <addaction name="actionUndo"/>
+     <addaction name="actionRedo"/>
+     <addaction name="separator"/>
+     <addaction name="actionCut"/>
+     <addaction name="actionCopy"/>
+     <addaction name="actionPaste"/>
+     <addaction name="separator"/>
+     <addaction name="actionFind"/>
+     <addaction name="separator"/>
+     <addaction name="actionCheck"/>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout" stretch="1,0">
+     <item>
+      <layout class="QVBoxLayout">
+       <item>
+        <widget class="CodeEditorWidget" name="codeEdit"/>
+       </item>
+       <item>
+        <widget class="QStatusBar" name="statusbar">
+         <property name="sizeGripEnabled">
+          <bool>false</bool>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <widget class="QWidget" name="widgetSearch" native="true">
+       <property name="visible">
+        <bool>false</bool>
+       </property>
+       <layout class="QVBoxLayout" name="verticalLayout_2" stretch="0,0,0">
+        <item>
+         <widget class="QGroupBox" name="groupBoxFind">
+          <property name="title">
+           <string>Find</string>
+          </property>
+          <layout class="QVBoxLayout" name="verticalLayout_3">
+           <item>
+            <widget class="QComboBox" name="comboBoxFind">
+             <property name="editable">
+              <bool>true</bool>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QCheckBox" name="checkBoxCaseSensitive">
+             <property name="text">
+              <string>Case Sensitive</string>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QCheckBox" name="checkBoxWholeWord">
+             <property name="text">
+              <string>Whole word only</string>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <layout class="QGridLayout" name="gridLayout">
+             <item row="1" column="0">
+              <widget class="QPushButton" name="pushButtonFindFirst">
+               <property name="text">
+                <string>First</string>
+               </property>
+              </widget>
+             </item>
+             <item row="0" column="0">
+              <widget class="QPushButton" name="pushButtonFindPrev">
+               <property name="text">
+                <string>Previous</string>
+               </property>
+              </widget>
+             </item>
+             <item row="0" column="1">
+              <widget class="QPushButton" name="pushButtonFindNext">
+               <property name="text">
+                <string>Next</string>
+               </property>
+              </widget>
+             </item>
+             <item row="1" column="1">
+              <widget class="QPushButton" name="pushButtonFindLast">
+               <property name="text">
+                <string>Last</string>
+               </property>
+              </widget>
+             </item>
+            </layout>
+           </item>
+          </layout>
+         </widget>
+        </item>
+        <item>
+         <widget class="QGroupBox" name="groupBoxReplace">
+          <property name="title">
+           <string>Replace</string>
+          </property>
+          <layout class="QVBoxLayout" name="verticalLayout_4">
+           <item>
+            <widget class="QComboBox" name="comboBoxReplace">
+             <property name="editable">
+              <bool>true</bool>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <layout class="QGridLayout" name="gridLayout_2">
+             <item row="1" column="0">
+              <widget class="QPushButton" name="pushButtonReplaceFirst">
+               <property name="text">
+                <string>First</string>
+               </property>
+              </widget>
+             </item>
+             <item row="0" column="0">
+              <widget class="QPushButton" name="pushButtonReplacePrevious">
+               <property name="text">
+                <string>Previous</string>
+               </property>
+              </widget>
+             </item>
+             <item row="0" column="1">
+              <widget class="QPushButton" name="pushButtonReplaceNext">
+               <property name="text">
+                <string>Next</string>
+               </property>
+              </widget>
+             </item>
+             <item row="1" column="1">
+              <widget class="QPushButton" name="pushButtonReplaceLast">
+               <property name="text">
+                <string>Last</string>
+               </property>
+              </widget>
+             </item>
+            </layout>
+           </item>
+           <item>
+            <widget class="QPushButton" name="pushButtonReplaceAll">
+             <property name="text">
+              <string>Replace All</string>
+             </property>
+            </widget>
+           </item>
+          </layout>
+         </widget>
+        </item>
+        <item>
+         <spacer name="horizontalSpacer">
+          <property name="orientation">
+           <enum>Qt::Vertical</enum>
+          </property>
+          <property name="sizeHint" stdset="0">
+           <size>
+            <width>20</width>
+            <height>40</height>
+           </size>
+          </property>
+         </spacer>
+        </item>
+       </layout>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+  <action name="actionOk">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/ok.png</normaloff>:/qtgameengine/icons/ok.png</iconset>
+   </property>
+   <property name="text">
+    <string>OK</string>
+   </property>
+   <property name="toolTip">
+    <string>OK, Save Changes</string>
+   </property>
+  </action>
+  <action name="actionLoad">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/open.png</normaloff>:/qtgameengine/icons/open.png</iconset>
+   </property>
+   <property name="text">
+    <string>Load</string>
+   </property>
+   <property name="toolTip">
+    <string>Load the code from a text file</string>
+   </property>
+  </action>
+  <action name="actionSave">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/save.png</normaloff>:/qtgameengine/icons/save.png</iconset>
+   </property>
+   <property name="text">
+    <string>Save</string>
+   </property>
+   <property name="toolTip">
+    <string>Save the code to a text file</string>
+   </property>
+  </action>
+  <action name="actionPrint">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/print.png</normaloff>:/qtgameengine/icons/print.png</iconset>
+   </property>
+   <property name="text">
+    <string>Print</string>
+   </property>
+   <property name="toolTip">
+    <string>Print the code</string>
+   </property>
+  </action>
+  <action name="actionUndo">
+   <property name="enabled">
+    <bool>false</bool>
+   </property>
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/undo.png</normaloff>:/qtgameengine/icons/undo.png</iconset>
+   </property>
+   <property name="text">
+    <string>Undo</string>
+   </property>
+   <property name="toolTip">
+    <string>Undo the last change</string>
+   </property>
+  </action>
+  <action name="actionRedo">
+   <property name="enabled">
+    <bool>false</bool>
+   </property>
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/redo.png</normaloff>:/qtgameengine/icons/redo.png</iconset>
+   </property>
+   <property name="text">
+    <string>Redo</string>
+   </property>
+   <property name="toolTip">
+    <string>Redo the last undo</string>
+   </property>
+  </action>
+  <action name="actionCut">
+   <property name="enabled">
+    <bool>false</bool>
+   </property>
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/cut.png</normaloff>:/qtgameengine/icons/cut.png</iconset>
+   </property>
+   <property name="text">
+    <string>Cut</string>
+   </property>
+   <property name="toolTip">
+    <string>Cut the selected text into clipboard</string>
+   </property>
+  </action>
+  <action name="actionCopy">
+   <property name="enabled">
+    <bool>false</bool>
+   </property>
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/copy.png</normaloff>:/qtgameengine/icons/copy.png</iconset>
+   </property>
+   <property name="text">
+    <string>Copy</string>
+   </property>
+   <property name="toolTip">
+    <string>Copy the selected text to the clipboard</string>
+   </property>
+  </action>
+  <action name="actionPaste">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/paste.png</normaloff>:/qtgameengine/icons/paste.png</iconset>
+   </property>
+   <property name="text">
+    <string>Paste</string>
+   </property>
+   <property name="toolTip">
+    <string>Paste the text from the clipboard</string>
+   </property>
+  </action>
+  <action name="actionFind">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="checked">
+    <bool>false</bool>
+   </property>
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/find.png</normaloff>:/qtgameengine/icons/find.png</iconset>
+   </property>
+   <property name="text">
+    <string>Find</string>
+   </property>
+   <property name="toolTip">
+    <string>Show the find and replace panel</string>
+   </property>
+  </action>
+  <action name="actionCheck">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="checked">
+    <bool>true</bool>
+   </property>
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/check.png</normaloff>:/qtgameengine/icons/check.png</iconset>
+   </property>
+   <property name="text">
+    <string>Check</string>
+   </property>
+   <property name="toolTip">
+    <string>Check the script for syntax errors</string>
+   </property>
+  </action>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>CodeEditorWidget</class>
+   <extends>QPlainTextEdit</extends>
+   <header>widgets/codeeditorwidget.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources>
+  <include location="../resources.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>actionOk</sender>
+   <signal>triggered()</signal>
+   <receiver>CodeEditorDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>269</x>
+     <y>248</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>actionUndo</sender>
+   <signal>triggered()</signal>
+   <receiver>codeEdit</receiver>
+   <slot>undo()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>269</x>
+     <y>263</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>actionRedo</sender>
+   <signal>triggered()</signal>
+   <receiver>codeEdit</receiver>
+   <slot>redo()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>269</x>
+     <y>263</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>codeEdit</sender>
+   <signal>undoAvailable(bool)</signal>
+   <receiver>actionUndo</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>269</x>
+     <y>263</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>codeEdit</sender>
+   <signal>redoAvailable(bool)</signal>
+   <receiver>actionRedo</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>269</x>
+     <y>263</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>actionCut</sender>
+   <signal>triggered()</signal>
+   <receiver>codeEdit</receiver>
+   <slot>cut()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>269</x>
+     <y>263</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>actionCopy</sender>
+   <signal>triggered()</signal>
+   <receiver>codeEdit</receiver>
+   <slot>copy()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>269</x>
+     <y>263</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>actionPaste</sender>
+   <signal>triggered()</signal>
+   <receiver>codeEdit</receiver>
+   <slot>paste()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>269</x>
+     <y>263</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>codeEdit</sender>
+   <signal>copyAvailable(bool)</signal>
+   <receiver>actionCut</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>269</x>
+     <y>263</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>codeEdit</sender>
+   <signal>copyAvailable(bool)</signal>
+   <receiver>actionCopy</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>269</x>
+     <y>263</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>actionFind</sender>
+   <signal>toggled(bool)</signal>
+   <receiver>widgetSearch</receiver>
+   <slot>setVisible(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>499</x>
+     <y>263</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/createspritedialog.cpp

@@ -0,0 +1,35 @@
+#include "createspritedialog.h"
+#include "ui_createspritedialog.h"
+
+#include <QPushButton>
+
+CreateSpriteDialog::CreateSpriteDialog(QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::CreateSpriteDialog>()}
+{
+    m_ui->setupUi(this);
+
+#ifdef Q_OS_LINUX
+    setWindowFlags((windowFlags() & ~Qt::Dialog) | Qt::Window);
+#endif
+    setWindowFlag(Qt::WindowCloseButtonHint);
+
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Ok))
+        button->setIcon(QIcon{":/qtgameengine/icons/ok.png"});
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Cancel))
+        button->setIcon(QIcon{":/qtgameengine/icons/delete.png"});
+}
+
+CreateSpriteDialog::CreateSpriteDialog(const QSize &size, QWidget *parent) :
+    CreateSpriteDialog{parent}
+{
+    m_ui->spinBoxWidth->setValue(size.width());
+    m_ui->spinBoxHeight->setValue(size.height());
+}
+
+CreateSpriteDialog::~CreateSpriteDialog() = default;
+
+QSize CreateSpriteDialog::spriteSize() const
+{
+    return QSize{m_ui->spinBoxWidth->value(), m_ui->spinBoxHeight->value()};
+}

src/editor/dialogs/createspritedialog.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+
+namespace Ui { class CreateSpriteDialog; }
+
+class CreateSpriteDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit CreateSpriteDialog(QWidget *parent = nullptr);
+    explicit CreateSpriteDialog(const QSize &size, QWidget *parent = nullptr);
+    ~CreateSpriteDialog();
+
+    QSize spriteSize() const;
+
+private:
+    const std::unique_ptr<Ui::CreateSpriteDialog> m_ui;
+};

src/editor/dialogs/createspritedialog.ui

@@ -0,0 +1,128 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>CreateSpriteDialog</class>
+ <widget class="QDialog" name="CreateSpriteDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>283</width>
+    <height>142</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Create a new sprite</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout" stretch="1,1">
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <layout class="QFormLayout" name="formLayout">
+       <item row="0" column="0">
+        <widget class="QLabel" name="labelWidth">
+         <property name="text">
+          <string>Width:</string>
+         </property>
+         <property name="buddy">
+          <cstring>spinBoxWidth</cstring>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="0">
+        <widget class="QLabel" name="labelHeight">
+         <property name="text">
+          <string>Height:</string>
+         </property>
+         <property name="buddy">
+          <cstring>spinBoxHeight</cstring>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="1">
+        <widget class="QSpinBox" name="spinBoxWidth">
+         <property name="minimum">
+          <number>0</number>
+         </property>
+         <property name="maximum">
+          <number>16384</number>
+         </property>
+         <property name="value">
+          <number>32</number>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="1">
+        <widget class="QSpinBox" name="spinBoxHeight">
+         <property name="maximum">
+          <number>16384</number>
+         </property>
+         <property name="value">
+          <number>32</number>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>CreateSpriteDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>CreateSpriteDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/deletemomentsdialog.cpp

@@ -0,0 +1,44 @@
+#include "deletemomentsdialog.h"
+#include "ui_deletemomentsdialog.h"
+
+DeleteMomentsDialog::DeleteMomentsDialog(QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::DeleteMomentsDialog>()}
+{
+    m_ui->setupUi(this);
+}
+
+DeleteMomentsDialog::DeleteMomentsDialog(int fromMoment, int tillMoment, QWidget *parent) :
+    DeleteMomentsDialog{parent}
+{
+    setFromMoment(fromMoment);
+    setTillMoment(tillMoment);
+}
+
+DeleteMomentsDialog::~DeleteMomentsDialog() = default;
+
+int DeleteMomentsDialog::fromMoment() const
+{
+    return m_ui->spinBoxFromMoment->value();
+}
+
+void DeleteMomentsDialog::setFromMoment(int fromMoment)
+{
+    m_ui->spinBoxFromMoment->setValue(fromMoment);
+}
+
+int DeleteMomentsDialog::tillMoment() const
+{
+    return m_ui->spinBoxTillMoment->value();
+}
+
+void DeleteMomentsDialog::setTillMoment(int tillMoment)
+{
+    m_ui->spinBoxTillMoment->setValue(tillMoment);
+}
+
+void DeleteMomentsDialog::setFromTillMoment(int fromMoment, int tillMoment)
+{
+    setFromMoment(fromMoment);
+    setTillMoment(tillMoment);
+}

src/editor/dialogs/deletemomentsdialog.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+
+namespace Ui { class DeleteMomentsDialog; }
+
+class DeleteMomentsDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit DeleteMomentsDialog(QWidget *parent = nullptr);
+    explicit DeleteMomentsDialog(int fromMoment, int tillMoment, QWidget *parent = nullptr);
+    ~DeleteMomentsDialog();
+
+    int fromMoment() const;
+    void setFromMoment(int fromMoment);
+
+    int tillMoment() const;
+    void setTillMoment(int tillMoment);
+
+    void setFromTillMoment(int fromMoment, int tillMoment);
+
+private:
+    const std::unique_ptr<Ui::DeleteMomentsDialog> m_ui;
+};

src/editor/dialogs/deletemomentsdialog.ui

@@ -0,0 +1,102 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>DeleteMomentsDialog</class>
+ <widget class="QDialog" name="DeleteMomentsDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>218</width>
+    <height>139</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Deleting Moments</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout" stretch="1,0">
+   <item>
+    <layout class="QFormLayout" name="formLayout">
+     <item row="0" column="0">
+      <widget class="QLabel" name="labelFromMoment">
+       <property name="text">
+        <string>From moment:</string>
+       </property>
+       <property name="buddy">
+        <cstring>spinBoxFromMoment</cstring>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="0">
+      <widget class="QLabel" name="labelTillMoment">
+       <property name="text">
+        <string>Till moment:</string>
+       </property>
+       <property name="buddy">
+        <cstring>spinBoxTillMoment</cstring>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="1">
+      <widget class="QSpinBox" name="spinBoxFromMoment">
+       <property name="maximum">
+        <number>2147483647</number>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="1">
+      <widget class="QSpinBox" name="spinBoxTillMoment">
+       <property name="maximum">
+        <number>2147483647</number>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>DeleteMomentsDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>DeleteMomentsDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/editspritedialog.cpp

@@ -0,0 +1,133 @@
+#include "editspritedialog.h"
+#include "ui_editspritedialog.h"
+
+#include <QMessageBox>
+
+#include "projectcontainer.h"
+#include "models/spritesmodel.h"
+#include "createspritedialog.h"
+#include "imageeditordialog.h"
+
+EditSpriteDialog::EditSpriteDialog(const std::vector<QPixmap> &pixmaps, const QString &spriteName, QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::EditSpriteDialog>()},
+    m_pixmaps{pixmaps},
+    m_spriteName{spriteName},
+    m_model{std::make_unique<SpritesModel>(m_pixmaps, this)}
+{
+    m_ui->setupUi(this);
+
+#ifdef Q_OS_LINUX
+    setWindowFlags((windowFlags() & ~Qt::Dialog) | Qt::Window);
+#endif
+    setWindowFlag(Qt::WindowMinimizeButtonHint);
+    setWindowFlag(Qt::WindowMaximizeButtonHint);
+    setWindowFlag(Qt::WindowCloseButtonHint);
+
+    updateTitle();
+
+    m_ui->actionNew->setShortcut(QKeySequence::New);
+    m_ui->actionCreateFromFile->setShortcut(QKeySequence::Open);
+    m_ui->actionSaveAsPngFile->setShortcut(QKeySequence::Save);
+
+    m_ui->listView->setModel(m_model.get());
+
+    connect(m_ui->actionNew, &QAction::triggered, this, &EditSpriteDialog::newSprite);
+
+    connect(m_ui->listView, &QListView::doubleClicked, this, &EditSpriteDialog::doubleClicked);
+}
+
+EditSpriteDialog::~EditSpriteDialog() = default;
+
+void EditSpriteDialog::accept()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    // TODO
+
+    QDialog::accept();
+}
+
+void EditSpriteDialog::reject()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    const auto result = QMessageBox::warning(
+        this,
+        tr("The Sprite has been modified."),
+        tr("Do you want to save your changes?"),
+        QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel,
+        QMessageBox::Save
+    );
+    switch (result)
+    {
+    case QMessageBox::Save:
+        accept();
+        return;
+    case QMessageBox::Discard:
+        QDialog::reject();
+        return;
+    case QMessageBox::Cancel:
+        return;
+    default:
+        qWarning() << "unexpected dialog result" << result;
+    }
+}
+
+void EditSpriteDialog::newSprite()
+{
+    CreateSpriteDialog dialog{this};
+    if (dialog.exec() == QDialog::Accepted)
+    {
+        QPixmap pixmap{dialog.spriteSize()};
+        pixmap.fill(Qt::white);
+
+        m_model->beginResetModel();
+        m_pixmaps = std::vector<QPixmap> { std::move(pixmap) };
+        m_model->endResetModel();
+        qDebug() << m_model->rowCount({});
+        changed();
+    }
+}
+
+void EditSpriteDialog::doubleClicked(const QModelIndex &index)
+{
+    if (!index.isValid())
+    {
+        qWarning() << "unexpected invalid index";
+        return;
+    }
+
+    ImageEditorDialog dialog{m_model->pixmap(index), tr("Image Editor: %0").arg(m_spriteName), this};
+    if (dialog.exec() == QDialog::Accepted)
+    {
+        m_pixmaps[index.row()] = dialog.pixmap();
+        emit m_model->dataChanged(index, index, {Qt::DecorationRole});
+        changed();
+    }
+}
+
+void EditSpriteDialog::changed()
+{
+    if (!m_unsavedChanges)
+    {
+        m_unsavedChanges = true;
+        updateTitle();
+    }
+}
+
+void EditSpriteDialog::updateTitle()
+{
+    setWindowTitle(tr("Sprite editor - %0%1")
+                       .arg(m_spriteName)
+                       .arg(m_unsavedChanges ? tr("*") : QString{})
+                   );
+}

src/editor/dialogs/editspritedialog.h

@@ -0,0 +1,43 @@
+#pragma once
+
+#include <QDialog>
+#include <QPixmap>
+
+#include <memory>
+#include <vector>
+
+namespace Ui { class EditSpriteDialog; }
+struct Sprite;
+class SpritesModel;
+
+class EditSpriteDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit EditSpriteDialog(const std::vector<QPixmap> &pixmaps, const QString &spriteName, QWidget *parent = nullptr);
+    ~EditSpriteDialog();
+
+    void accept() override;
+    void reject() override;
+
+    const std::vector<QPixmap> &pixmaps() const { return m_pixmaps; }
+
+private slots:
+    void newSprite();
+    void doubleClicked(const QModelIndex &index);
+
+    void changed();
+
+private:
+    void updateTitle();
+
+    const std::unique_ptr<Ui::EditSpriteDialog> m_ui;
+
+    std::vector<QPixmap> m_pixmaps;
+    const QString m_spriteName;
+
+    bool m_unsavedChanges{};
+
+    const std::unique_ptr<SpritesModel> m_model;
+};

src/editor/dialogs/editspritedialog.ui

@@ -0,0 +1,255 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>EditSpriteDialog</class>
+ <widget class="QDialog" name="EditSpriteDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>590</width>
+    <height>510</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Sprite Editor</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout" stretch="0,0,1,0">
+   <property name="spacing">
+    <number>0</number>
+   </property>
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <widget class="QMenuBar" name="menuBar">
+     <widget class="QMenu" name="menuFile">
+      <property name="title">
+       <string>&amp;File</string>
+      </property>
+      <addaction name="actionNew"/>
+      <addaction name="actionCreateFromFile"/>
+      <addaction name="actionAddFromFile"/>
+      <addaction name="separator"/>
+      <addaction name="actionSaveAsPngFile"/>
+      <addaction name="separator"/>
+      <addaction name="actionCreateFromStrip"/>
+      <addaction name="actionAddFromStrip"/>
+      <addaction name="separator"/>
+      <addaction name="actionCloseSavingChanges"/>
+     </widget>
+     <widget class="QMenu" name="menuEdit">
+      <property name="title">
+       <string>&amp;Edit</string>
+      </property>
+     </widget>
+     <widget class="QMenu" name="menuTransform">
+      <property name="title">
+       <string>&amp;Transform</string>
+      </property>
+     </widget>
+     <widget class="QMenu" name="menuImages">
+      <property name="title">
+       <string>&amp;Images</string>
+      </property>
+     </widget>
+     <widget class="QMenu" name="menuAnimation">
+      <property name="title">
+       <string>&amp;Animation</string>
+      </property>
+     </widget>
+     <addaction name="menuFile"/>
+     <addaction name="menuEdit"/>
+     <addaction name="menuTransform"/>
+     <addaction name="menuImages"/>
+     <addaction name="menuAnimation"/>
+    </widget>
+   </item>
+   <item>
+    <widget class="QFrame" name="frame">
+     <property name="frameShape">
+      <enum>QFrame::Panel</enum>
+     </property>
+     <property name="frameShadow">
+      <enum>QFrame::Raised</enum>
+     </property>
+     <layout class="QHBoxLayout">
+      <property name="spacing">
+       <number>0</number>
+      </property>
+      <property name="leftMargin">
+       <number>0</number>
+      </property>
+      <property name="topMargin">
+       <number>0</number>
+      </property>
+      <property name="rightMargin">
+       <number>0</number>
+      </property>
+      <property name="bottomMargin">
+       <number>0</number>
+      </property>
+      <item>
+       <widget class="QToolBar" name="toolBar">
+        <property name="movable">
+         <bool>false</bool>
+        </property>
+        <property name="iconSize">
+         <size>
+          <width>16</width>
+          <height>16</height>
+         </size>
+        </property>
+        <property name="floatable">
+         <bool>false</bool>
+        </property>
+        <addaction name="actionCloseSavingChanges"/>
+        <addaction name="separator"/>
+        <addaction name="actionNew"/>
+        <addaction name="actionCreateFromFile"/>
+        <addaction name="actionAddFromFile"/>
+        <addaction name="actionSaveAsPngFile"/>
+        <addaction name="separator"/>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QSplitter" name="splitter">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <widget class="QWidget" name="verticalLayoutWidget">
+      <layout class="QVBoxLayout" name="verticalLayout_2">
+       <item>
+        <widget class="QCheckBox" name="checkBoxShowPreview">
+         <property name="text">
+          <string>Show Preview</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <spacer name="verticalSpacer">
+         <property name="orientation">
+          <enum>Qt::Vertical</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>20</width>
+           <height>40</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+      </layout>
+     </widget>
+     <widget class="QListView" name="listView">
+      <property name="spacing">
+       <number>16</number>
+      </property>
+      <property name="viewMode">
+       <enum>QListView::IconMode</enum>
+      </property>
+     </widget>
+    </widget>
+   </item>
+   <item>
+    <widget class="QStatusBar" name="statusBar"/>
+   </item>
+  </layout>
+  <action name="actionNew">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/new.png</normaloff>:/qtgameengine/icons/new.png</iconset>
+   </property>
+   <property name="text">
+    <string>&amp;New...</string>
+   </property>
+  </action>
+  <action name="actionCreateFromFile">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/open.png</normaloff>:/qtgameengine/icons/open.png</iconset>
+   </property>
+   <property name="text">
+    <string>&amp;Create from file...</string>
+   </property>
+  </action>
+  <action name="actionAddFromFile">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/create-group.png</normaloff>:/qtgameengine/icons/create-group.png</iconset>
+   </property>
+   <property name="text">
+    <string>&amp;Add from file...</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+A</string>
+   </property>
+  </action>
+  <action name="actionSaveAsPngFile">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/save.png</normaloff>:/qtgameengine/icons/save.png</iconset>
+   </property>
+   <property name="text">
+    <string>&amp;Save as PNG File...</string>
+   </property>
+  </action>
+  <action name="actionCreateFromStrip">
+   <property name="text">
+    <string>Create from Strip...</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+I</string>
+   </property>
+  </action>
+  <action name="actionAddFromStrip">
+   <property name="text">
+    <string>Add from Stri&amp;p...</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+P</string>
+   </property>
+  </action>
+  <action name="actionCloseSavingChanges">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/ok.png</normaloff>:/qtgameengine/icons/ok.png</iconset>
+   </property>
+   <property name="text">
+    <string>Close Saving Changes</string>
+   </property>
+  </action>
+ </widget>
+ <resources>
+  <include location="../resources.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>actionCloseSavingChanges</sender>
+   <signal>triggered()</signal>
+   <receiver>EditSpriteDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>245</x>
+     <y>249</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/extensionpackagesdialog.cpp

@@ -0,0 +1,36 @@
+#include "extensionpackagesdialog.h"
+#include "ui_extensionpackagesdialog.h"
+
+#include "installextensiondialog.h"
+
+ExtensionPackagesDialog::ExtensionPackagesDialog(QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::ExtensionPackagesDialog>()}
+{
+    m_ui->setupUi(this);
+
+#ifdef Q_OS_LINUX
+    setWindowFlags((windowFlags() & ~Qt::Dialog) | Qt::Window);
+#endif
+    setWindowFlag(Qt::WindowCloseButtonHint);
+
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Ok))
+        button->setIcon(QIcon{":/qtgameengine/icons/ok.png"});
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Cancel))
+        button->setIcon(QIcon{":/qtgameengine/icons/delete.png"});
+
+    if (auto button = m_ui->buttonBox->addButton(tr("Install"), QDialogButtonBox::ActionRole))
+    {
+        button->setIcon(QIcon{":/qtgameengine/icons/extension-packages-file.png"});
+        connect(button, &QAbstractButton::clicked,
+                this, &ExtensionPackagesDialog::install);
+    }
+}
+
+ExtensionPackagesDialog::~ExtensionPackagesDialog() = default;
+
+void ExtensionPackagesDialog::install()
+{
+    InstallExtensionDialog dialog{this};
+    dialog.exec();
+}

src/editor/dialogs/extensionpackagesdialog.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+
+namespace Ui { class ExtensionPackagesDialog; }
+
+class ExtensionPackagesDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit ExtensionPackagesDialog(QWidget *parent = nullptr);
+    ~ExtensionPackagesDialog();
+
+private slots:
+    void install();
+
+private:
+    const std::unique_ptr<Ui::ExtensionPackagesDialog> m_ui;
+};

src/editor/dialogs/extensionpackagesdialog.ui

@@ -0,0 +1,212 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ExtensionPackagesDialog</class>
+ <widget class="QDialog" name="ExtensionPackagesDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>461</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Extension Packages</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout" stretch="1,1,0">
+   <item>
+    <layout class="QGridLayout" name="gridLayout" columnminimumwidth="1,0,1">
+     <item row="1" column="0">
+      <widget class="QListView" name="listViewUsedPackages"/>
+     </item>
+     <item row="1" column="1">
+      <layout class="QVBoxLayout" name="verticalLayout_2">
+       <item>
+        <widget class="QPushButton" name="pushButtonLeft">
+         <property name="text">
+          <string>⬅️</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QPushButton" name="pushButtonRight">
+         <property name="text">
+          <string>➡️</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item row="0" column="0">
+      <widget class="QLabel" name="labelUsedPackages">
+       <property name="text">
+        <string>Used Packages:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="2">
+      <widget class="QListView" name="listViewAvailablePackages"/>
+     </item>
+     <item row="0" column="2">
+      <widget class="QLabel" name="labelAvailablePackages">
+       <property name="text">
+        <string>Available Packages:</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="groupBoxInformation">
+     <property name="title">
+      <string>Information</string>
+     </property>
+     <layout class="QFormLayout" name="formLayout">
+      <item row="0" column="0">
+       <widget class="QLabel" name="labelAuthor">
+        <property name="font">
+         <font>
+          <weight>75</weight>
+          <bold>true</bold>
+         </font>
+        </property>
+        <property name="text">
+         <string>Author:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="labelVersion">
+        <property name="font">
+         <font>
+          <weight>75</weight>
+          <bold>true</bold>
+         </font>
+        </property>
+        <property name="text">
+         <string>Version:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="0">
+       <widget class="QLabel" name="labelDate">
+        <property name="font">
+         <font>
+          <weight>75</weight>
+          <bold>true</bold>
+         </font>
+        </property>
+        <property name="text">
+         <string>Date:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="3" column="0">
+       <widget class="QLabel" name="labelLicense">
+        <property name="font">
+         <font>
+          <weight>75</weight>
+          <bold>true</bold>
+         </font>
+        </property>
+        <property name="text">
+         <string>License:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="0">
+       <widget class="QLabel" name="labelDescription">
+        <property name="font">
+         <font>
+          <weight>75</weight>
+          <bold>true</bold>
+         </font>
+        </property>
+        <property name="text">
+         <string>Description:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QLabel" name="label">
+        <property name="text">
+         <string>TextLabel</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QLabel" name="label_2">
+        <property name="text">
+         <string>TextLabel</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="1">
+       <widget class="QLabel" name="label_3">
+        <property name="text">
+         <string>TextLabel</string>
+        </property>
+       </widget>
+      </item>
+      <item row="3" column="1">
+       <widget class="QLabel" name="label_4">
+        <property name="text">
+         <string>TextLabel</string>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="1">
+       <widget class="QLabel" name="label_5">
+        <property name="text">
+         <string>TextLabel</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Help|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>ExtensionPackagesDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>199</x>
+     <y>278</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>199</x>
+     <y>149</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>ExtensionPackagesDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>199</x>
+     <y>278</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>199</x>
+     <y>149</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/fontpropertiesdialog.cpp

@@ -0,0 +1,184 @@
+#include "fontpropertiesdialog.h"
+#include "ui_fontpropertiesdialog.h"
+
+#include <QDebug>
+#include <QMessageBox>
+
+#include "projectcontainer.h"
+#include "models/projecttreemodel.h"
+
+FontPropertiesDialog::FontPropertiesDialog(Font &font, ProjectTreeModel &projectModel, QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::FontPropertiesDialog>()},
+    m_font{font},
+    m_projectModel{projectModel}
+{
+    m_ui->setupUi(this);
+
+    updateTitle();
+
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Ok))
+        button->setIcon(QIcon{":/qtgameengine/icons/ok.png"});
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Cancel))
+        button->setIcon(QIcon{":/qtgameengine/icons/delete.png"});
+
+    m_ui->lineEditName->setText(m_font.name);
+    m_ui->fontComboBox->setCurrentFont(m_font.font);
+    m_ui->spinBoxSize->setValue(m_font.font.pointSize());
+    m_ui->checkBoxBold->setChecked(m_font.font.bold());
+    m_ui->checkBoxItalic->setChecked(m_font.font.italic());
+    m_ui->spinBoxCharRangeFrom->setValue(m_font.range.from);
+    m_ui->spinBoxCharRangeTo->setValue(m_font.range.to);
+
+    m_ui->labelPreview->setFont(currentFont());
+
+    connect(&m_projectModel, &ProjectTreeModel::fontNameChanged,
+            this, &FontPropertiesDialog::fontNameChanged);
+
+    connect(m_ui->pushButtonNormal, &QAbstractButton::clicked,
+            this, &FontPropertiesDialog::normalRange);
+    connect(m_ui->pushButtonDigits, &QAbstractButton::clicked,
+            this, &FontPropertiesDialog::digitsRange);
+    connect(m_ui->pushButtonAll, &QAbstractButton::clicked,
+            this, &FontPropertiesDialog::allRange);
+    connect(m_ui->pushButtonLetters, &QAbstractButton::clicked,
+            this, &FontPropertiesDialog::lettersRange);
+
+    connect(m_ui->lineEditName, &QLineEdit::textChanged,
+            this, &FontPropertiesDialog::changed);
+    connect(m_ui->fontComboBox, &QFontComboBox::currentFontChanged,
+            this, &FontPropertiesDialog::changed);
+    connect(m_ui->spinBoxSize, &QSpinBox::valueChanged,
+            this, &FontPropertiesDialog::changed);
+    connect(m_ui->checkBoxBold, &QCheckBox::toggled,
+            this, &FontPropertiesDialog::changed);
+    connect(m_ui->checkBoxItalic, &QCheckBox::toggled,
+            this, &FontPropertiesDialog::changed);
+    connect(m_ui->spinBoxCharRangeFrom, &QSpinBox::valueChanged,
+            this, &FontPropertiesDialog::changed);
+    connect(m_ui->spinBoxCharRangeTo, &QSpinBox::valueChanged,
+            this, &FontPropertiesDialog::changed);
+}
+
+FontPropertiesDialog::~FontPropertiesDialog() = default;
+
+void FontPropertiesDialog::accept()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    if (m_font.name != m_ui->lineEditName->text())
+    {
+        if (!m_projectModel.rename<Font>(m_font, m_ui->lineEditName->text()))
+        {
+            QMessageBox::critical(this, tr("Renaming Font failed!"), tr("Renaming Font failed!"));
+            return;
+        }
+    }
+
+    m_font.font = currentFont();
+    m_font.range = {
+        .from = m_ui->spinBoxCharRangeFrom->value(),
+        .to =   m_ui->spinBoxCharRangeTo->value(),
+    };
+
+    QDialog::accept();
+}
+
+void FontPropertiesDialog::reject()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    const auto result = QMessageBox::warning(
+        this,
+        tr("The Font has been modified."),
+        tr("Do you want to save your changes?"),
+        QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel,
+        QMessageBox::Save
+    );
+    switch (result)
+    {
+    case QMessageBox::Save:
+        accept();
+        return;
+    case QMessageBox::Discard:
+        QDialog::reject();
+        return;
+    case QMessageBox::Cancel:
+        return;
+    default:
+        qWarning() << "unexpected dialog result" << result;
+    }
+}
+
+void FontPropertiesDialog::normalRange()
+{
+    m_ui->spinBoxCharRangeFrom->setValue(32);
+    m_ui->spinBoxCharRangeFrom->setValue(127);
+}
+
+void FontPropertiesDialog::digitsRange()
+{
+    m_ui->spinBoxCharRangeFrom->setValue(48);
+    m_ui->spinBoxCharRangeFrom->setValue(57);
+}
+
+void FontPropertiesDialog::allRange()
+{
+    m_ui->spinBoxCharRangeFrom->setValue(0);
+    m_ui->spinBoxCharRangeFrom->setValue(255);
+}
+
+void FontPropertiesDialog::lettersRange()
+{
+    m_ui->spinBoxCharRangeFrom->setValue(65);
+    m_ui->spinBoxCharRangeFrom->setValue(122);
+}
+
+void FontPropertiesDialog::changed()
+{
+    m_ui->labelPreview->setFont(currentFont());
+    if (!m_unsavedChanges)
+    {
+        m_unsavedChanges = true;
+        updateTitle();
+    }
+}
+
+void FontPropertiesDialog::fontNameChanged(const Font &font)
+{
+    if (&font != &m_font)
+        return;
+
+    {
+        QSignalBlocker blocker{m_ui->lineEditName};
+        m_ui->lineEditName->setText(font.name);
+    }
+
+    updateTitle();
+}
+
+void FontPropertiesDialog::updateTitle()
+{
+    setWindowTitle(tr("Font Properties: %0%1")
+                       .arg(m_font.name)
+                       .arg(m_unsavedChanges ? tr("*") : QString{})
+                   );
+}
+
+QFont FontPropertiesDialog::currentFont() const
+{
+    QFont font;
+    font.setFamily(m_ui->fontComboBox->currentFont().family());
+    font.setPointSize(m_ui->spinBoxSize->value());
+    font.setBold(m_ui->checkBoxBold->isChecked());
+    font.setItalic(m_ui->checkBoxItalic->isChecked());
+    return font;
+}

src/editor/dialogs/fontpropertiesdialog.h

@@ -0,0 +1,42 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+
+namespace Ui { class FontPropertiesDialog; }
+struct Font;
+class ProjectTreeModel;
+
+class FontPropertiesDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit FontPropertiesDialog(Font &font, ProjectTreeModel &projectModel, QWidget *parent = nullptr);
+    ~FontPropertiesDialog();
+
+    void accept() override;
+    void reject() override;
+
+private slots:
+    void normalRange();
+    void digitsRange();
+    void allRange();
+    void lettersRange();
+
+    void changed();
+
+    void fontNameChanged(const Font &font);
+
+private:
+    void updateTitle();
+    QFont currentFont() const;
+
+    const std::unique_ptr<Ui::FontPropertiesDialog> m_ui;
+
+    Font &m_font;
+    ProjectTreeModel &m_projectModel;
+
+    bool m_unsavedChanges{};
+};

src/editor/dialogs/fontpropertiesdialog.ui

@@ -0,0 +1,259 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>FontPropertiesDialog</class>
+ <widget class="QDialog" name="FontPropertiesDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>338</width>
+    <height>451</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Font Properties</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../resources.qrc">
+    <normaloff>:/qtgameengine/icons/font-file.png</normaloff>:/qtgameengine/icons/font-file.png</iconset>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <layout class="QFormLayout" name="formLayout">
+     <item row="0" column="0">
+      <widget class="QLabel" name="labelName">
+       <property name="text">
+        <string>&amp;Name:</string>
+       </property>
+       <property name="buddy">
+        <cstring>lineEditName</cstring>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="1">
+      <widget class="QLineEdit" name="lineEditName">
+       <property name="toolTip">
+        <string>The name of the font</string>
+       </property>
+      </widget>
+     </item>
+     <item row="2" column="0">
+      <widget class="QLabel" name="labelFont">
+       <property name="text">
+        <string>Font:</string>
+       </property>
+       <property name="buddy">
+        <cstring>fontComboBox</cstring>
+       </property>
+      </widget>
+     </item>
+     <item row="3" column="0">
+      <widget class="QLabel" name="labelSize">
+       <property name="text">
+        <string>Size:</string>
+       </property>
+       <property name="buddy">
+        <cstring>spinBoxSize</cstring>
+       </property>
+      </widget>
+     </item>
+     <item row="2" column="1">
+      <widget class="QFontComboBox" name="fontComboBox"/>
+     </item>
+     <item row="3" column="1">
+      <widget class="QSpinBox" name="spinBoxSize"/>
+     </item>
+     <item row="1" column="0">
+      <spacer name="verticalSpacer_2">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+       <property name="sizeType">
+        <enum>QSizePolicy::Minimum</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>40</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QCheckBox" name="checkBoxBold">
+       <property name="text">
+        <string>Bold</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QCheckBox" name="checkBoxItalic">
+       <property name="text">
+        <string>Italic</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="groupBoxCharacterRange">
+     <property name="title">
+      <string>Character Range</string>
+     </property>
+     <layout class="QGridLayout" name="gridLayout">
+      <item row="0" column="1">
+       <widget class="QLabel" name="labelTill">
+        <property name="text">
+         <string>till</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="0">
+       <widget class="QSpinBox" name="spinBoxCharRangeFrom">
+        <property name="maximum">
+         <number>255</number>
+        </property>
+        <property name="value">
+         <number>32</number>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="2">
+       <widget class="QSpinBox" name="spinBoxCharRangeTo">
+        <property name="maximum">
+         <number>255</number>
+        </property>
+        <property name="value">
+         <number>127</number>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0">
+       <widget class="QPushButton" name="pushButtonNormal">
+        <property name="toolTip">
+         <string>Set the character range to the normal range (32 - 127)</string>
+        </property>
+        <property name="text">
+         <string>Normal</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="0">
+       <widget class="QPushButton" name="pushButtonDigits">
+        <property name="toolTip">
+         <string>Set the character range to the digits range (48 - 57)</string>
+        </property>
+        <property name="text">
+         <string>Digits</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="2">
+       <widget class="QPushButton" name="pushButtonAll">
+        <property name="toolTip">
+         <string>Set the character range to the complete set (0 - 255)</string>
+        </property>
+        <property name="text">
+         <string>All</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="2">
+       <widget class="QPushButton" name="pushButtonLetters">
+        <property name="toolTip">
+         <string>Set the character range to the letters range (65 - 122)</string>
+        </property>
+        <property name="text">
+         <string>Letters</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QLabel" name="labelPreview">
+     <property name="minimumSize">
+      <size>
+       <width>0</width>
+       <height>100</height>
+      </size>
+     </property>
+     <property name="frameShape">
+      <enum>QFrame::StyledPanel</enum>
+     </property>
+     <property name="text">
+      <string>AaBbCcDd</string>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignCenter</set>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <spacer name="verticalSpacer">
+     <property name="orientation">
+      <enum>Qt::Vertical</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>20</width>
+       <height>40</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Ok</set>
+     </property>
+     <property name="centerButtons">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../resources.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>FontPropertiesDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>168</x>
+     <y>429</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>168</x>
+     <y>225</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>FontPropertiesDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>168</x>
+     <y>429</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>168</x>
+     <y>225</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/gameinformationdialog.cpp

@@ -0,0 +1,18 @@
+#include "gameinformationdialog.h"
+#include "ui_gameinformationdialog.h"
+
+GameInformationDialog::GameInformationDialog(QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::GameInformationDialog>()}
+{
+    m_ui->setupUi(this);
+
+#ifdef Q_OS_LINUX
+    setWindowFlags((windowFlags() & ~Qt::Dialog) | Qt::Window);
+#endif
+    setWindowFlag(Qt::WindowMinimizeButtonHint);
+    setWindowFlag(Qt::WindowMaximizeButtonHint);
+    setWindowFlag(Qt::WindowCloseButtonHint);
+}
+
+GameInformationDialog::~GameInformationDialog() = default;

src/editor/dialogs/gameinformationdialog.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+
+namespace Ui { class GameInformationDialog; }
+
+class GameInformationDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit GameInformationDialog(QWidget *parent = nullptr);
+    ~GameInformationDialog();
+
+private:
+    const std::unique_ptr<Ui::GameInformationDialog> m_ui;
+};

src/editor/dialogs/gameinformationdialog.ui

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>GameInformationDialog</class>
+ <widget class="QDialog" name="GameInformationDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Game Information</string>
+  </property>
+  <widget class="QLabel" name="label">
+   <property name="geometry">
+    <rect>
+     <x>50</x>
+     <y>50</y>
+     <width>201</width>
+     <height>16</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Not yet implemented</string>
+   </property>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

src/editor/dialogs/globalgamesettingsdialog.cpp

@@ -0,0 +1,111 @@
+#include "globalgamesettingsdialog.h"
+#include "ui_globalgamesettingsdialog.h"
+
+#include <QPushButton>
+#include <QMessageBox>
+
+GlobalGameSettingsDialog::GlobalGameSettingsDialog(QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::GlobalGameSettingsDialog>()}
+{
+    m_ui->setupUi(this);
+
+#ifdef Q_OS_LINUX
+    setWindowFlags((windowFlags() & ~Qt::Dialog) | Qt::Window);
+#endif
+    setWindowFlag(Qt::WindowCloseButtonHint);
+
+    updateTitle();
+
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Ok))
+        button->setIcon(QIcon{":/qtgameengine/icons/ok.png"});
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Cancel))
+        button->setIcon(QIcon{":/qtgameengine/icons/delete.png"});
+
+    connect(m_ui->checkBoxFullscreen, &QCheckBox::toggled,
+            this, &GlobalGameSettingsDialog::changed);
+    connect(m_ui->radioButtonFixedScale, &QCheckBox::toggled,
+            this, &GlobalGameSettingsDialog::changed);
+    connect(m_ui->radioButtonKeepAspectRatio, &QRadioButton::toggled,
+            this, &GlobalGameSettingsDialog::changed);
+    connect(m_ui->radioButtonFullScale, &QRadioButton::toggled,
+            this, &GlobalGameSettingsDialog::changed);
+    connect(m_ui->checkBoxInterpolateColors, &QRadioButton::toggled,
+            this, &GlobalGameSettingsDialog::changed);
+    // TODO toolButtonColorOutside
+    connect(m_ui->checkBoxAllowResize, &QCheckBox::toggled,
+            this, &GlobalGameSettingsDialog::changed);
+    connect(m_ui->checkBoxAlwaysOntop, &QCheckBox::toggled,
+            this, &GlobalGameSettingsDialog::changed);
+    connect(m_ui->checkBoxNoBorder, &QCheckBox::toggled,
+            this, &GlobalGameSettingsDialog::changed);
+    connect(m_ui->checkBoxNoWindowButtons, &QCheckBox::toggled,
+            this, &GlobalGameSettingsDialog::changed);
+    connect(m_ui->checkBoxDisplayCursor, &QCheckBox::toggled,
+            this, &GlobalGameSettingsDialog::changed);
+    connect(m_ui->checkBoxFreezeOnFocusLost, &QCheckBox::toggled,
+            this, &GlobalGameSettingsDialog::changed);
+    connect(m_ui->checkBoxDisableScreensavers, &QCheckBox::toggled,
+            this, &GlobalGameSettingsDialog::changed);
+}
+
+GlobalGameSettingsDialog::~GlobalGameSettingsDialog() = default;
+
+void GlobalGameSettingsDialog::accept()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    // TODO
+
+    QDialog::accept();
+}
+
+void GlobalGameSettingsDialog::reject()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    const auto result = QMessageBox::warning(
+        this,
+        tr("The Global Game Settings has been modified."),
+        tr("Do you want to save your changes?"),
+        QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel,
+        QMessageBox::Save
+    );
+    switch (result)
+    {
+    case QMessageBox::Save:
+        accept();
+        return;
+    case QMessageBox::Discard:
+        QDialog::reject();
+        return;
+    case QMessageBox::Cancel:
+        return;
+    default:
+        qWarning() << "unexpected dialog result" << result;
+    }
+}
+
+void GlobalGameSettingsDialog::changed()
+{
+    if (!m_unsavedChanges)
+    {
+        m_unsavedChanges = true;
+        updateTitle();
+    }
+}
+
+void GlobalGameSettingsDialog::updateTitle()
+{
+    setWindowTitle(tr("Global Game Settings%0")
+                       .arg(m_unsavedChanges ? tr("*") : QString{})
+                   );
+}

src/editor/dialogs/globalgamesettingsdialog.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+
+namespace Ui { class GlobalGameSettingsDialog; }
+
+class GlobalGameSettingsDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit GlobalGameSettingsDialog(QWidget *parent = nullptr);
+    ~GlobalGameSettingsDialog();
+
+    void accept() override;
+    void reject() override;
+
+private slots:
+    void changed();
+
+private:
+    void updateTitle();
+
+    const std::unique_ptr<Ui::GlobalGameSettingsDialog> m_ui;
+
+    bool m_unsavedChanges{};
+};

src/editor/dialogs/globalgamesettingsdialog.ui

@@ -0,0 +1,475 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>GlobalGameSettingsDialog</class>
+ <widget class="QDialog" name="GlobalGameSettingsDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>426</width>
+    <height>556</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Global Game Settings</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout" stretch="1,0">
+   <item>
+    <widget class="QTabWidget" name="tabWidgetResolution">
+     <property name="currentIndex">
+      <number>0</number>
+     </property>
+     <widget class="QWidget" name="tabGraphics">
+      <attribute name="title">
+       <string>Graphics</string>
+      </attribute>
+      <layout class="QVBoxLayout" name="verticalLayout_2">
+       <item>
+        <widget class="QCheckBox" name="checkBoxFullscreen">
+         <property name="text">
+          <string>Start in full-screen mode</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_2" stretch="1,1">
+         <item>
+          <widget class="QGroupBox" name="groupBoxScaling">
+           <property name="title">
+            <string>Scaling</string>
+           </property>
+           <layout class="QVBoxLayout" name="verticalLayout_3">
+            <item>
+             <layout class="QHBoxLayout" name="horizontalLayout_4">
+              <item>
+               <widget class="QRadioButton" name="radioButtonFixedScale">
+                <property name="text">
+                 <string>Fixed scale (in %)</string>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QSpinBox" name="spinBox">
+                <property name="maximum">
+                 <number>100</number>
+                </property>
+                <property name="value">
+                 <number>100</number>
+                </property>
+               </widget>
+              </item>
+             </layout>
+            </item>
+            <item>
+             <widget class="QRadioButton" name="radioButtonKeepAspectRatio">
+              <property name="text">
+               <string>Keep aspect ratio</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QRadioButton" name="radioButtonFullScale">
+              <property name="text">
+               <string>Full scale</string>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </widget>
+         </item>
+         <item>
+          <spacer name="horizontalSpacer_2">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>40</width>
+             <height>20</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="checkBoxInterpolateColors">
+         <property name="text">
+          <string>Interpolate colors between pixels</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout">
+         <item>
+          <widget class="QLabel" name="labelColorOutsideRoom">
+           <property name="text">
+            <string>Color outside the room region:</string>
+           </property>
+           <property name="buddy">
+            <cstring>toolButtonColorOutside</cstring>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QToolButton" name="toolButtonColorOutside">
+           <property name="text">
+            <string>...</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <spacer name="horizontalSpacer">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>40</width>
+             <height>20</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="checkBoxAllowResize">
+         <property name="text">
+          <string>Allow the player to resize the game window</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="checkBoxAlwaysOntop">
+         <property name="text">
+          <string>Let the game window always stay on top</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="checkBoxNoBorder">
+         <property name="text">
+          <string>Don't draw a border in windowed mode</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="checkBoxNoWindowButtons">
+         <property name="text">
+          <string>Don't show the buttons in the window caption</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="checkBoxDisplayCursor">
+         <property name="text">
+          <string>Display the cursor</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="checkBoxFreezeOnFocusLost">
+         <property name="text">
+          <string>Freeze the game when the form loses focus</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="checkBoxDisableScreensavers">
+         <property name="text">
+          <string>Disable screensavers and power saving actions</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <spacer name="verticalSpacer">
+         <property name="orientation">
+          <enum>Qt::Vertical</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>20</width>
+           <height>40</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+      </layout>
+     </widget>
+     <widget class="QWidget" name="tabResolution">
+      <attribute name="title">
+       <string>Resolution</string>
+      </attribute>
+     </widget>
+     <widget class="QWidget" name="tabOther">
+      <attribute name="title">
+       <string>Other</string>
+      </attribute>
+      <layout class="QVBoxLayout" name="verticalLayout_4">
+       <item>
+        <widget class="QGroupBox" name="groupBoxDefaultKeys">
+         <property name="title">
+          <string>Default Keys</string>
+         </property>
+         <layout class="QVBoxLayout" name="verticalLayout_5">
+          <item>
+           <widget class="QCheckBox" name="checkBoxEscEndGame">
+            <property name="text">
+             <string>Let &lt;Esc&gt; end the game</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QCheckBox" name="checkBoxTreatCloseAsEsc">
+            <property name="text">
+             <string>Treat the close button as &lt;Esc&gt; key</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QCheckBox" name="checkBoxF1ShowGameInfo">
+            <property name="text">
+             <string>Let &lt;F1&gt; show the game information</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QCheckBox" name="checkBoxF4SwitchScreenMode">
+            <property name="text">
+             <string>Let &lt;F4&gt; switch between screen modes</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QCheckBox" name="checkBoxEnableSavestates">
+            <property name="text">
+             <string>Let &lt;F5&gt; save the game and &lt;F6&gt; load a game</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QCheckBox" name="checkBoxF9Screenshot">
+            <property name="text">
+             <string>Let &lt;F9&gt; take a screenshot of the game</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </widget>
+       </item>
+       <item>
+        <widget class="QGroupBox" name="groupBoxGameProcessPriority">
+         <property name="title">
+          <string>Game Process Priority</string>
+         </property>
+         <layout class="QHBoxLayout" name="horizontalLayout_3">
+          <item>
+           <widget class="QRadioButton" name="radioButtonPriorityNormal">
+            <property name="text">
+             <string>Normal</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QRadioButton" name="radioButtonPriorityHigh">
+            <property name="text">
+             <string>High</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QRadioButton" name="radioButtonPriorityHighest">
+            <property name="text">
+             <string>Highest</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </widget>
+       </item>
+       <item>
+        <widget class="QGroupBox" name="groupBoxVersionInformation">
+         <property name="title">
+          <string>Version Information</string>
+         </property>
+         <layout class="QVBoxLayout" name="verticalLayout_6">
+          <item>
+           <layout class="QHBoxLayout" name="horizontalLayout_5">
+            <item>
+             <widget class="QLabel" name="labelMajor">
+              <property name="text">
+               <string>Major</string>
+              </property>
+              <property name="buddy">
+               <cstring>spinBoxMajor</cstring>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QSpinBox" name="spinBoxMajor"/>
+            </item>
+            <item>
+             <widget class="QLabel" name="labelMinor">
+              <property name="text">
+               <string>Minor</string>
+              </property>
+              <property name="buddy">
+               <cstring>spinBoxMinor</cstring>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QSpinBox" name="spinBoxMinor"/>
+            </item>
+            <item>
+             <widget class="QLabel" name="labelRelease">
+              <property name="text">
+               <string>Release</string>
+              </property>
+              <property name="buddy">
+               <cstring>spinBoxRelease</cstring>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QSpinBox" name="spinBoxRelease"/>
+            </item>
+            <item>
+             <widget class="QLabel" name="labelBuild">
+              <property name="text">
+               <string>Build</string>
+              </property>
+              <property name="buddy">
+               <cstring>spinBoxBuild</cstring>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QSpinBox" name="spinBoxBuild"/>
+            </item>
+           </layout>
+          </item>
+          <item>
+           <layout class="QFormLayout" name="formLayout">
+            <item row="0" column="0">
+             <widget class="QLabel" name="labelCompany">
+              <property name="text">
+               <string>Company</string>
+              </property>
+              <property name="buddy">
+               <cstring>lineEditCompany</cstring>
+              </property>
+             </widget>
+            </item>
+            <item row="0" column="1">
+             <widget class="QLineEdit" name="lineEditCompany"/>
+            </item>
+            <item row="1" column="0">
+             <widget class="QLabel" name="labelProduct">
+              <property name="text">
+               <string>Product</string>
+              </property>
+              <property name="buddy">
+               <cstring>lineEditProduct</cstring>
+              </property>
+             </widget>
+            </item>
+            <item row="1" column="1">
+             <widget class="QLineEdit" name="lineEditProduct"/>
+            </item>
+            <item row="2" column="0">
+             <widget class="QLabel" name="labelCopyright">
+              <property name="text">
+               <string>Copyright</string>
+              </property>
+              <property name="buddy">
+               <cstring>lineEditCopyright</cstring>
+              </property>
+             </widget>
+            </item>
+            <item row="2" column="1">
+             <widget class="QLineEdit" name="lineEditCopyright"/>
+            </item>
+            <item row="3" column="0">
+             <widget class="QLabel" name="labelDescription">
+              <property name="text">
+               <string>Description</string>
+              </property>
+              <property name="buddy">
+               <cstring>lineEditDescription</cstring>
+              </property>
+             </widget>
+            </item>
+            <item row="3" column="1">
+             <widget class="QLineEdit" name="lineEditDescription"/>
+            </item>
+           </layout>
+          </item>
+         </layout>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+     <widget class="QWidget" name="tabLoading">
+      <attribute name="title">
+       <string>Loading</string>
+      </attribute>
+     </widget>
+     <widget class="QWidget" name="tabErrors">
+      <attribute name="title">
+       <string>Errors</string>
+      </attribute>
+     </widget>
+     <widget class="QWidget" name="tabInfo">
+      <attribute name="title">
+       <string>Info</string>
+      </attribute>
+     </widget>
+    </widget>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>GlobalGameSettingsDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>184</x>
+     <y>506</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>184</x>
+     <y>263</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>GlobalGameSettingsDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>184</x>
+     <y>506</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>184</x>
+     <y>263</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/imageeditordialog.cpp

@@ -0,0 +1,88 @@
+#include "imageeditordialog.h"
+#include "ui_imageeditordialog.h"
+
+#include <QMessageBox>
+
+ImageEditorDialog::ImageEditorDialog(const QPixmap &pixmap, const QString &title, QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::ImageEditorDialog>()},
+    m_pixmap{pixmap},
+    m_title{title}
+{
+    m_ui->setupUi(this);
+
+#ifdef Q_OS_LINUX
+    setWindowFlags((windowFlags() & ~Qt::Dialog) | Qt::Window);
+#endif
+    setWindowFlag(Qt::WindowMinimizeButtonHint);
+    setWindowFlag(Qt::WindowMaximizeButtonHint);
+    setWindowFlag(Qt::WindowCloseButtonHint);
+
+    updateTitle();
+
+    m_ui->scrollArea->setBackgroundRole(QPalette::Dark);
+
+    m_ui->canvas->setPixmap(m_pixmap);
+}
+
+ImageEditorDialog::~ImageEditorDialog() = default;
+
+void ImageEditorDialog::accept()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    // TODO
+
+    QDialog::accept();
+}
+
+void ImageEditorDialog::reject()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    const auto result = QMessageBox::warning(
+        this,
+        tr("The Image has been modified."),
+        tr("Do you want to save your changes?"),
+        QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel,
+        QMessageBox::Save
+    );
+    switch (result)
+    {
+    case QMessageBox::Save:
+        accept();
+        return;
+    case QMessageBox::Discard:
+        QDialog::reject();
+        return;
+    case QMessageBox::Cancel:
+        return;
+    default:
+        qWarning() << "unexpected dialog result" << result;
+    }
+}
+
+void ImageEditorDialog::changed()
+{
+    if (!m_unsavedChanges)
+    {
+        m_unsavedChanges = true;
+        updateTitle();
+    }
+}
+
+void ImageEditorDialog::updateTitle()
+{
+    setWindowTitle(tr("%0%1")
+                       .arg(m_title)
+                       .arg(m_unsavedChanges ? tr("*") : QString{})
+                   );
+}

src/editor/dialogs/imageeditordialog.h

@@ -0,0 +1,36 @@
+#pragma once
+
+#include <QDialog>
+#include <QPixmap>
+#include <QString>
+
+#include <memory>
+
+namespace Ui { class ImageEditorDialog; }
+
+class ImageEditorDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit ImageEditorDialog(const QPixmap &pixmap, const QString &title, QWidget *parent = nullptr);
+    ~ImageEditorDialog();
+
+    const QPixmap &pixmap() const { return m_pixmap; }
+
+    void accept() override;
+    void reject() override;
+
+private slots:
+    void changed();
+
+private:
+    void updateTitle();
+
+    const std::unique_ptr<Ui::ImageEditorDialog> m_ui;
+
+    QPixmap m_pixmap;
+    const QString m_title;
+
+    bool m_unsavedChanges{};
+};

src/editor/dialogs/imageeditordialog.ui

@@ -0,0 +1,328 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ImageEditorDialog</class>
+ <widget class="QDialog" name="ImageEditorDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>572</width>
+    <height>454</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Image Editor</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout" stretch="0,0,1,0">
+   <property name="spacing">
+    <number>0</number>
+   </property>
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <widget class="QMenuBar" name="menuBar">
+     <widget class="QMenu" name="menuFile">
+      <property name="title">
+       <string>&amp;File</string>
+      </property>
+      <addaction name="actionNew"/>
+      <addaction name="separator"/>
+      <addaction name="actionSaveAsPngFile"/>
+      <addaction name="separator"/>
+      <addaction name="actionPreviousImage"/>
+      <addaction name="actionNextImage"/>
+      <addaction name="separator"/>
+      <addaction name="actionCloseSavingChanges"/>
+     </widget>
+     <widget class="QMenu" name="menuEdit">
+      <property name="title">
+       <string>&amp;Edit</string>
+      </property>
+      <addaction name="actionUndo"/>
+      <addaction name="actionRedo"/>
+      <addaction name="separator"/>
+      <addaction name="actionEraseToLeftColor"/>
+      <addaction name="separator"/>
+      <addaction name="actionDelete"/>
+      <addaction name="actionCut"/>
+      <addaction name="actionCopy"/>
+      <addaction name="actionPaste"/>
+      <addaction name="actionPasteFromFile"/>
+      <addaction name="separator"/>
+      <addaction name="actionSelectAll"/>
+     </widget>
+     <widget class="QMenu" name="menuView">
+      <property name="title">
+       <string>&amp;View</string>
+      </property>
+     </widget>
+     <widget class="QMenu" name="menuTransform">
+      <property name="title">
+       <string>&amp;Transform</string>
+      </property>
+     </widget>
+     <widget class="QMenu" name="menuImage">
+      <property name="title">
+       <string>&amp;Image</string>
+      </property>
+     </widget>
+     <addaction name="menuFile"/>
+     <addaction name="menuEdit"/>
+     <addaction name="menuView"/>
+     <addaction name="menuTransform"/>
+     <addaction name="menuImage"/>
+    </widget>
+   </item>
+   <item>
+    <widget class="QFrame" name="frame">
+     <property name="frameShape">
+      <enum>QFrame::StyledPanel</enum>
+     </property>
+     <property name="frameShadow">
+      <enum>QFrame::Raised</enum>
+     </property>
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <property name="spacing">
+       <number>0</number>
+      </property>
+      <property name="leftMargin">
+       <number>0</number>
+      </property>
+      <property name="topMargin">
+       <number>0</number>
+      </property>
+      <property name="rightMargin">
+       <number>0</number>
+      </property>
+      <property name="bottomMargin">
+       <number>0</number>
+      </property>
+      <item>
+       <widget class="QToolBar" name="toolBar">
+        <property name="movable">
+         <bool>false</bool>
+        </property>
+        <property name="iconSize">
+         <size>
+          <width>16</width>
+          <height>16</height>
+         </size>
+        </property>
+        <addaction name="actionCloseSavingChanges"/>
+        <addaction name="actionPreviousImage"/>
+        <addaction name="actionNextImage"/>
+        <addaction name="separator"/>
+        <addaction name="actionNew"/>
+        <addaction name="actionLoad"/>
+        <addaction name="actionSaveAsPngFile"/>
+        <addaction name="separator"/>
+        <addaction name="actionUndo"/>
+        <addaction name="actionRedo"/>
+        <addaction name="separator"/>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout">
+     <item>
+      <widget class="QWidget">
+       <layout class="QVBoxLayout">
+        <item>
+         <widget class="QPushButton" />
+        </item>
+       </layout>
+      </widget>
+     </item>
+     <item>
+    <widget class="QScrollArea" name="scrollArea">
+     <widget class="DrawingCanvasWidget" name="canvas">
+      <property name="geometry">
+       <rect>
+        <x>0</x>
+        <y>0</y>
+        <width>0</width>
+        <height>0</height>
+       </rect>
+      </property>
+     </widget>
+    </widget>
+     </item>
+     <item>
+      <widget class="QWidget">
+       <layout class="QVBoxLayout">
+        <item>
+         <widget class="QPushButton" />
+        </item>
+       </layout>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QStatusBar" name="statusBar"/>
+   </item>
+  </layout>
+  <action name="actionNew">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/new.png</normaloff>:/qtgameengine/icons/new.png</iconset>
+   </property>
+   <property name="text">
+    <string>&amp;New...</string>
+   </property>
+   <property name="toolTip">
+    <string>Create a new, empty image</string>
+   </property>
+  </action>
+  <action name="actionSaveAsPngFile">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/save.png</normaloff>:/qtgameengine/icons/save.png</iconset>
+   </property>
+   <property name="text">
+    <string>&amp;Save as PNG file...</string>
+   </property>
+   <property name="toolTip">
+    <string>Save the image as a PNG file</string>
+   </property>
+  </action>
+  <action name="actionPreviousImage">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/arrow-left.png</normaloff>:/qtgameengine/icons/arrow-left.png</iconset>
+   </property>
+   <property name="text">
+    <string>&amp;Previous image...</string>
+   </property>
+   <property name="toolTip">
+    <string>Edit the previous subimage of the sprite</string>
+   </property>
+  </action>
+  <action name="actionNextImage">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/arrow-right.png</normaloff>:/qtgameengine/icons/arrow-right.png</iconset>
+   </property>
+   <property name="text">
+    <string>N&amp;ext image...</string>
+   </property>
+   <property name="toolTip">
+    <string>Edit the next subimage of the sprite</string>
+   </property>
+  </action>
+  <action name="actionCloseSavingChanges">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/ok.png</normaloff>:/qtgameengine/icons/ok.png</iconset>
+   </property>
+   <property name="text">
+    <string>Close Saving Changes</string>
+   </property>
+   <property name="toolTip">
+    <string>Close the image editor, saving the changes made</string>
+   </property>
+  </action>
+  <action name="actionLoad">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/open.png</normaloff>:/qtgameengine/icons/open.png</iconset>
+   </property>
+   <property name="text">
+    <string>Load</string>
+   </property>
+  </action>
+  <action name="actionUndo">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/undo.png</normaloff>:/qtgameengine/icons/undo.png</iconset>
+   </property>
+   <property name="text">
+    <string>&amp;Undo</string>
+   </property>
+  </action>
+  <action name="actionRedo">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/redo.png</normaloff>:/qtgameengine/icons/redo.png</iconset>
+   </property>
+   <property name="text">
+    <string>&amp;Redo</string>
+   </property>
+  </action>
+  <action name="actionEraseToLeftColor">
+   <property name="text">
+    <string>&amp;Erase to left color</string>
+   </property>
+  </action>
+  <action name="actionDelete">
+   <property name="text">
+    <string>&amp;Delete</string>
+   </property>
+  </action>
+  <action name="actionCut">
+   <property name="text">
+    <string>Cu&amp;t</string>
+   </property>
+  </action>
+  <action name="actionCopy">
+   <property name="text">
+    <string>&amp;Copy</string>
+   </property>
+  </action>
+  <action name="actionPaste">
+   <property name="text">
+    <string>&amp;Paste</string>
+   </property>
+  </action>
+  <action name="actionPasteFromFile">
+   <property name="text">
+    <string>Paste from F&amp;ile</string>
+   </property>
+  </action>
+  <action name="actionSelectAll">
+   <property name="text">
+    <string>Select &amp;All</string>
+   </property>
+  </action>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>DrawingCanvasWidget</class>
+   <extends>QWidget</extends>
+   <header>widgets/drawingcanvaswidget.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources>
+  <include location="../resources.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>actionCloseSavingChanges</sender>
+   <signal>triggered()</signal>
+   <receiver>ImageEditorDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>285</x>
+     <y>226</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/includedfilesdialog.cpp

@@ -0,0 +1,23 @@
+#include "includedfilesdialog.h"
+#include "ui_includedfilesdialog.h"
+
+#include "projectcontainer.h"
+#include "models/includedfilesmodel.h"
+
+IncludedFilesDialog::IncludedFilesDialog(ProjectContainer &project, QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::IncludedFilesDialog>()},
+    m_project{project},
+    m_model{std::make_unique<IncludedFilesModel>(m_project, this)}
+{
+    m_ui->setupUi(this);
+
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Ok))
+        button->setIcon(QIcon{":/qtgameengine/icons/ok.png"});
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Cancel))
+        button->setIcon(QIcon{":/qtgameengine/icons/delete.png"});
+
+    m_ui->listView->setModel(m_model.get());
+}
+
+IncludedFilesDialog::~IncludedFilesDialog() = default;

src/editor/dialogs/includedfilesdialog.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+
+namespace Ui { class IncludedFilesDialog; }
+struct ProjectContainer;
+class IncludedFilesModel;
+
+class IncludedFilesDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit IncludedFilesDialog(ProjectContainer &project, QWidget *parent = nullptr);
+    ~IncludedFilesDialog();
+
+private:
+    const std::unique_ptr<Ui::IncludedFilesDialog> m_ui;
+
+    ProjectContainer &m_project;
+
+    const std::unique_ptr<IncludedFilesModel> m_model;
+};

src/editor/dialogs/includedfilesdialog.ui

@@ -0,0 +1,146 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>IncludedFilesDialog</class>
+ <widget class="QDialog" name="IncludedFilesDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Included Files</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout" stretch="1,0">
+   <item>
+    <widget class="QGroupBox" name="groupBox">
+     <layout class="QVBoxLayout" name="verticalLayout_2">
+      <item>
+       <widget class="QLabel" name="label">
+        <property name="text">
+         <string>Files to include in the stand alone executable:</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QListView" name="listView">
+        <property name="toolTip">
+         <string>This is the list of files to be included when creating a stand-alone game.</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout">
+        <item>
+         <widget class="QPushButton" name="pushButtonAdd">
+          <property name="toolTip">
+           <string>Add a file to be included</string>
+          </property>
+          <property name="text">
+           <string>&amp;Add</string>
+          </property>
+          <property name="icon">
+           <iconset resource="../resources.qrc">
+            <normaloff>:/qtgameengine/icons/add.png</normaloff>:/qtgameengine/icons/add.png</iconset>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QPushButton" name="pushButtonChange">
+          <property name="toolTip">
+           <string>Change the properties of the included file</string>
+          </property>
+          <property name="text">
+           <string>&amp;Change</string>
+          </property>
+          <property name="icon">
+           <iconset resource="../resources.qrc">
+            <normaloff>:/qtgameengine/icons/replace.png</normaloff>:/qtgameengine/icons/replace.png</iconset>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QPushButton" name="pushButtonDelete">
+          <property name="toolTip">
+           <string>Delete the indicated included file</string>
+          </property>
+          <property name="text">
+           <string>&amp;Delete</string>
+          </property>
+          <property name="icon">
+           <iconset resource="../resources.qrc">
+            <normaloff>:/qtgameengine/icons/delete.png</normaloff>:/qtgameengine/icons/delete.png</iconset>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QPushButton" name="pushButtonClear">
+          <property name="toolTip">
+           <string>Clear the list of included files</string>
+          </property>
+          <property name="text">
+           <string>&amp;Clear</string>
+          </property>
+          <property name="icon">
+           <iconset resource="../resources.qrc">
+            <normaloff>:/qtgameengine/icons/new.png</normaloff>:/qtgameengine/icons/new.png</iconset>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Ok</set>
+     </property>
+     <property name="centerButtons">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../resources.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>IncludedFilesDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>199</x>
+     <y>278</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>199</x>
+     <y>149</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>IncludedFilesDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>199</x>
+     <y>278</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>199</x>
+     <y>149</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/installextensiondialog.cpp

@@ -0,0 +1,16 @@
+#include "installextensiondialog.h"
+#include "ui_installextensiondialog.h"
+
+InstallExtensionDialog::InstallExtensionDialog(QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::InstallExtensionDialog>()}
+{
+    m_ui->setupUi(this);
+
+#ifdef Q_OS_LINUX
+    setWindowFlags((windowFlags() & ~Qt::Dialog) | Qt::Window);
+#endif
+    setWindowFlag(Qt::WindowCloseButtonHint);
+}
+
+InstallExtensionDialog::~InstallExtensionDialog() = default;

src/editor/dialogs/installextensiondialog.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+
+namespace Ui { class InstallExtensionDialog; }
+
+class InstallExtensionDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit InstallExtensionDialog(QWidget *parent = nullptr);
+    ~InstallExtensionDialog();
+
+private:
+    const std::unique_ptr<Ui::InstallExtensionDialog> m_ui;
+};

src/editor/dialogs/installextensiondialog.ui

@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>InstallExtensionDialog</class>
+ <widget class="QDialog" name="InstallExtensionDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Installing Extension Packages</string>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout" stretch="1,0">
+   <item>
+    <layout class="QVBoxLayout" name="verticalLayout">
+     <item>
+      <widget class="QLabel" name="labelInstalledPackages">
+       <property name="text">
+        <string>Installed Packages:</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QListView" name="listView"/>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Vertical</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>InstallExtensionDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>350</x>
+     <y>149</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>199</x>
+     <y>149</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>InstallExtensionDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>350</x>
+     <y>149</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>199</x>
+     <y>149</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/maskpropertiesdialog.cpp

@@ -0,0 +1,16 @@
+#include "maskpropertiesdialog.h"
+#include "ui_maskpropertiesdialog.h"
+
+MaskPropertiesDialog::MaskPropertiesDialog(QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::MaskPropertiesDialog>()}
+{
+    m_ui->setupUi(this);
+
+#ifdef Q_OS_LINUX
+    setWindowFlags((windowFlags() & ~Qt::Dialog) | Qt::Window);
+#endif
+    setWindowFlag(Qt::WindowCloseButtonHint);
+}
+
+MaskPropertiesDialog::~MaskPropertiesDialog() = default;

src/editor/dialogs/maskpropertiesdialog.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+
+namespace Ui { class MaskPropertiesDialog; }
+
+class MaskPropertiesDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit MaskPropertiesDialog(QWidget *parent = nullptr);
+    ~MaskPropertiesDialog();
+
+private:
+    const std::unique_ptr<Ui::MaskPropertiesDialog> m_ui;
+};

src/editor/dialogs/maskpropertiesdialog.ui

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MaskPropertiesDialog</class>
+ <widget class="QDialog" name="MaskPropertiesDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Mask Properties</string>
+  </property>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

src/editor/dialogs/objectinformationdialog.cpp

@@ -0,0 +1,12 @@
+#include "objectinformationdialog.h"
+#include "ui_objectinformationdialog.h"
+
+ObjectInformationDialog::ObjectInformationDialog(ProjectContainer &project, QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::ObjectInformationDialog>()},
+    m_project{project}
+{
+    m_ui->setupUi(this);
+}
+
+ObjectInformationDialog::~ObjectInformationDialog() = default;

src/editor/dialogs/objectinformationdialog.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+
+namespace Ui { class ObjectInformationDialog; }
+struct ProjectContainer;
+
+class ObjectInformationDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit ObjectInformationDialog(ProjectContainer &project, QWidget *parent = nullptr);
+    ~ObjectInformationDialog();
+
+private:
+    const std::unique_ptr<Ui::ObjectInformationDialog> m_ui;
+
+    ProjectContainer &m_project;
+};

src/editor/dialogs/objectinformationdialog.ui

@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ObjectInformationDialog</class>
+ <widget class="QDialog" name="ObjectInformationDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Information about all Objects</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../resources.qrc">
+    <normaloff>:/qtgameengine/icons/object-file.png</normaloff>:/qtgameengine/icons/object-file.png</iconset>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout" stretch="0,1">
+   <property name="spacing">
+    <number>0</number>
+   </property>
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <widget class="QToolBar" name="toolBar">
+     <property name="iconSize">
+      <size>
+       <width>16</width>
+       <height>16</height>
+      </size>
+     </property>
+     <addaction name="actionOk"/>
+     <addaction name="separator"/>
+     <addaction name="actionSave"/>
+     <addaction name="separator"/>
+     <addaction name="actionPrint"/>
+    </widget>
+   </item>
+   <item>
+    <widget class="QPlainTextEdit" name="plainTextEdit">
+     <property name="readOnly">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+  </layout>
+  <action name="actionOk">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/ok.png</normaloff>:/qtgameengine/icons/ok.png</iconset>
+   </property>
+   <property name="text">
+    <string>Ok</string>
+   </property>
+   <property name="toolTip">
+    <string>Close the form</string>
+   </property>
+  </action>
+  <action name="actionSave">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/save.png</normaloff>:/qtgameengine/icons/save.png</iconset>
+   </property>
+   <property name="text">
+    <string>Save</string>
+   </property>
+   <property name="toolTip">
+    <string>Save the object information to a file</string>
+   </property>
+  </action>
+  <action name="actionPrint">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/print.png</normaloff>:/qtgameengine/icons/print.png</iconset>
+   </property>
+   <property name="text">
+    <string>Print</string>
+   </property>
+   <property name="toolTip">
+    <string>Print the object information</string>
+   </property>
+  </action>
+ </widget>
+ <resources>
+  <include location="../resources.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>actionOk</sender>
+   <signal>triggered()</signal>
+   <receiver>ObjectInformationDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>199</x>
+     <y>149</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/objectpropertiesdialog.cpp

@@ -0,0 +1,373 @@
+#include "objectpropertiesdialog.h"
+#include "ui_objectpropertiesdialog.h"
+
+#include <QMenu>
+#include <QDebug>
+#include <QMessageBox>
+
+#include <algorithm>
+
+#include "models/projecttreemodel.h"
+#include "models/objecteventsmodel.h"
+#include "addeventdialog.h"
+
+ObjectPropertiesDialog::ObjectPropertiesDialog(Object &object, ProjectTreeModel &projectModel, QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::ObjectPropertiesDialog>()},
+    m_object{object},
+    m_projectModel{projectModel},
+    m_events{m_object.events},
+    m_eventsModel{std::make_unique<ObjectEventsModel>(m_events)},
+    m_spritesMenu{new QMenu{m_ui->toolButtonSprite}},
+    m_spriteName{object.spriteName}
+{
+    m_ui->setupUi(this);
+
+    updateTitle();
+
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Ok))
+        button->setIcon(QIcon{":/qtgameengine/icons/ok.png"});
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Cancel))
+        button->setIcon(QIcon{":/qtgameengine/icons/delete.png"});
+
+    m_ui->lineEditName->setText(m_object.name);
+    m_ui->lineEditSprite->setText(m_spriteName.isEmpty() ? tr("<no sprite>") : m_spriteName);
+    updateSpritePreview();
+    m_ui->toolButtonSprite->setMenu(m_spritesMenu);
+    m_ui->checkBoxVisible->setChecked(m_object.visible);
+    m_ui->checkBoxSolid->setChecked(m_object.solid);
+    m_ui->spinBoxDepth->setValue(m_object.depth);
+    m_ui->checkBoxPersistent->setChecked(m_object.persistent);
+
+    m_ui->listViewEvents->setModel(m_eventsModel.get());
+
+    connect(&m_projectModel, &ProjectTreeModel::objectNameChanged,
+            this, &ObjectPropertiesDialog::objectNameChanged);
+    connect(&m_projectModel, &ProjectTreeModel::spriteNameChanged,
+            this, &ObjectPropertiesDialog::spriteNameChanged);
+    connect(&m_projectModel, &ProjectTreeModel::spriteAboutToBeRemoved,
+            this, &ObjectPropertiesDialog::spriteAboutToBeRemoved);
+    connect(&m_projectModel, &ProjectTreeModel::spritePixmapsChanged,
+            this, &ObjectPropertiesDialog::spritePixmapsChanged);
+
+    connect(m_eventsModel.get(), &QAbstractItemModel::modelReset,
+            this, &ObjectPropertiesDialog::changed);
+    connect(m_eventsModel.get(), &QAbstractItemModel::rowsInserted,
+            this, &ObjectPropertiesDialog::changed);
+    connect(m_eventsModel.get(), &QAbstractItemModel::dataChanged,
+            this, &ObjectPropertiesDialog::changed);
+    connect(m_eventsModel.get(), &QAbstractItemModel::rowsRemoved,
+            this, &ObjectPropertiesDialog::changed);
+
+    connect(m_ui->pushButtonNewSprite, &QAbstractButton::clicked,
+            this, &ObjectPropertiesDialog::newSprite);
+    connect(m_ui->pushButtonEditSprite, &QAbstractButton::clicked,
+            this, &ObjectPropertiesDialog::editSprite);
+    connect(m_ui->pushButtonShowInformation, &QAbstractButton::clicked,
+            this, &ObjectPropertiesDialog::showInformation);
+    connect(m_ui->pushButtonAddEvent, &QAbstractButton::clicked,
+            this, &ObjectPropertiesDialog::addEvent);
+    connect(m_ui->pushButtonDeleteEvent, &QAbstractButton::clicked,
+            this, &ObjectPropertiesDialog::deleteEvent);
+    connect(m_ui->pushButtonChangeEvent, &QAbstractButton::clicked,
+            this, &ObjectPropertiesDialog::replaceEvent);
+
+    connect(m_ui->lineEditName, &QLineEdit::textChanged,
+            this, &ObjectPropertiesDialog::changed);
+    connect(m_ui->checkBoxVisible, &QCheckBox::toggled,
+            this, &ObjectPropertiesDialog::changed);
+    connect(m_ui->checkBoxSolid, &QCheckBox::toggled,
+            this, &ObjectPropertiesDialog::changed);
+    connect(m_ui->spinBoxDepth, &QSpinBox::valueChanged,
+            this, &ObjectPropertiesDialog::changed);
+    connect(m_ui->checkBoxPersistent, &QCheckBox::toggled,
+            this, &ObjectPropertiesDialog::changed);
+
+    connect(m_spritesMenu, &QMenu::aboutToShow,
+            this, &ObjectPropertiesDialog::spritesMenuAboutToShow);
+
+    connect(m_ui->listViewEvents->selectionModel(), &QItemSelectionModel::currentChanged,
+            this, &ObjectPropertiesDialog::currentEventChanged);
+
+    connect(m_ui->listViewEvents, &QListView::customContextMenuRequested,
+            this, &ObjectPropertiesDialog::eventsContextMenuRequested);
+
+    connect(m_ui->actionsWidget, &ActionsContainerWidget::changed,
+            this, &ObjectPropertiesDialog::changed);
+}
+
+ObjectPropertiesDialog::~ObjectPropertiesDialog() = default;
+
+void ObjectPropertiesDialog::accept()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    if (m_object.name != m_ui->lineEditName->text())
+    {
+        if (!m_projectModel.rename<Object>(m_object, m_ui->lineEditName->text()))
+        {
+            QMessageBox::critical(this, tr("Renaming Object failed!"), tr("Renaming Object failed!"));
+            return;
+        }
+    }
+
+    m_object.spriteName = m_spriteName;
+    m_object.visible = m_ui->checkBoxVisible->isChecked();
+    m_object.solid = m_ui->checkBoxSolid->isChecked();
+    m_object.depth = m_ui->spinBoxDepth->value();
+    m_object.persistent = m_ui->checkBoxPersistent->isChecked();
+    m_object.events = std::move(m_events);
+
+    QDialog::accept();
+}
+
+void ObjectPropertiesDialog::reject()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    const auto result = QMessageBox::warning(
+        this,
+        tr("The Object has been modified."),
+        tr("Do you want to save your changes?"),
+        QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel,
+        QMessageBox::Save
+    );
+    switch (result)
+    {
+    case QMessageBox::Save:
+        accept();
+        return;
+    case QMessageBox::Discard:
+        QDialog::reject();
+        return;
+    case QMessageBox::Cancel:
+        return;
+    default:
+        qWarning() << "unexpected dialog result" << result;
+    }
+}
+
+void ObjectPropertiesDialog::newSprite()
+{
+    auto sprite = m_projectModel.create<Sprite>();
+    if (!sprite)
+    {
+        QMessageBox::warning(this, tr("Creating Sprite failed"), tr("Creating Sprite failed"));
+        return;
+    }
+    setSprite(*sprite);
+}
+
+void ObjectPropertiesDialog::editSprite()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void ObjectPropertiesDialog::showInformation()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void ObjectPropertiesDialog::addEvent()
+{
+    AddEventDialog dialog{this};
+    if (dialog.exec() == QDialog::Accepted)
+    {
+        if (!m_eventsModel->addEvent(dialog.eventType()))
+            QMessageBox::warning(this, tr("Could not add Event!"), tr("Could not add Event!"));
+    }
+}
+
+void ObjectPropertiesDialog::deleteEvent()
+{
+    const auto index = m_ui->listViewEvents->currentIndex();
+    if (!index.isValid())
+        return;
+
+    if (QMessageBox::question(this, tr("Confirm"), tr("Are you sure, that you really want to remove the event with all its actions?")) != QMessageBox::Yes)
+        return;
+
+    if (!m_eventsModel->removeRow(index.row()))
+        QMessageBox::warning(this, tr("Could not delete Event!"), tr("Could not delete Event!"));
+}
+
+void ObjectPropertiesDialog::replaceEvent()
+{
+    const auto index = m_ui->listViewEvents->currentIndex();
+    if (!index.isValid())
+        return;
+
+    const auto event = m_eventsModel->getEvent(index);
+    if (!event)
+        return;
+
+    AddEventDialog dialog{this};
+    if (dialog.exec() == QDialog::Accepted)
+    {
+        if (!m_eventsModel->changeEvent(event->first, dialog.eventType()))
+            QMessageBox::warning(this, tr("Could not change Event!"), tr("Could not change Event!"));
+    }
+}
+
+void ObjectPropertiesDialog::duplicateEvent()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void ObjectPropertiesDialog::changed()
+{
+    if (!m_unsavedChanges)
+    {
+        m_unsavedChanges = true;
+        updateTitle();
+    }
+}
+
+void ObjectPropertiesDialog::objectNameChanged(const Object &object)
+{
+    if (&object != &m_object)
+        return;
+
+    {
+        QSignalBlocker blocker{m_ui->lineEditName};
+        m_ui->lineEditName->setText(object.name);
+    }
+
+    updateTitle();
+}
+
+void ObjectPropertiesDialog::spriteNameChanged(const Sprite &sprite, const QString &oldName)
+{
+    if (m_spriteName.isEmpty())
+        return;
+
+    if (m_spriteName != oldName)
+        return;
+
+    m_spriteName = sprite.name;
+    {
+        QSignalBlocker blocker{m_ui->lineEditSprite};
+        m_ui->lineEditSprite->setText(sprite.name);
+    }
+    updateSpritePreview();
+}
+
+void ObjectPropertiesDialog::spriteAboutToBeRemoved(const Sprite &sprite)
+{
+    if (m_spriteName.isEmpty())
+        return;
+
+    if (m_spriteName != sprite.name)
+        return;
+
+    m_spriteName.clear();
+    {
+        QSignalBlocker blocker{m_ui->lineEditSprite};
+        m_ui->lineEditSprite->setText(tr("<no sprite>"));
+    }
+    m_ui->labelSpritePreview->setPixmap(QPixmap{});
+}
+
+void ObjectPropertiesDialog::spritePixmapsChanged(const Sprite &sprite)
+{
+    if (m_spriteName.isEmpty())
+        return;
+
+    if (m_spriteName != sprite.name)
+        return;
+
+    updateSpritePreview(sprite.pixmaps);
+}
+
+void ObjectPropertiesDialog::spritesMenuAboutToShow()
+{
+    m_spritesMenu->clear();
+    m_spritesMenu->addAction(tr("<no sprite>"), this, &ObjectPropertiesDialog::clearSprite);
+    for (const auto &sprite : m_projectModel.project()->sprites)
+        m_spritesMenu->addAction(sprite.pixmaps.empty() ? QPixmap{} : sprite.pixmaps.front(),
+                                 sprite.name,
+                                 this,
+                                 [&sprite,this](){ setSprite(sprite); });
+}
+
+void ObjectPropertiesDialog::currentEventChanged(const QModelIndex &index)
+{
+    if (index.isValid())
+    {
+        if (auto event = m_eventsModel->getEvent(index))
+            m_ui->actionsWidget->setActionsContainer(&event->second);
+        else
+            goto none;
+    }
+    else
+    {
+none:
+        m_ui->actionsWidget->setActionsContainer(nullptr);
+}
+}
+
+void ObjectPropertiesDialog::eventsContextMenuRequested(const QPoint &pos)
+{
+    const auto index = m_ui->listViewEvents->indexAt(pos);
+    auto event = index.isValid() ? m_eventsModel->getEvent(index) : nullptr;
+
+    QMenu menu{this};
+    menu.addAction(tr("&Add Event"), this, &ObjectPropertiesDialog::addEvent);
+    menu.addAction(tr("&Change Event"), this, &ObjectPropertiesDialog::replaceEvent)->setEnabled(event);
+    menu.addAction(tr("&Duplicate Event"), this, &ObjectPropertiesDialog::duplicateEvent)->setEnabled(event);
+    menu.addAction(tr("D&elete Event"), this, &ObjectPropertiesDialog::deleteEvent)->setEnabled(event);
+    menu.exec(m_ui->listViewEvents->viewport()->mapToGlobal(pos));
+}
+
+void ObjectPropertiesDialog::clearSprite()
+{
+    m_spriteName.clear();
+    m_ui->labelSpritePreview->setPixmap(QPixmap{});
+    m_ui->lineEditSprite->setText(tr("<no sprite>"));
+    changed();
+}
+
+void ObjectPropertiesDialog::setSprite(const Sprite &sprite)
+{
+    m_spriteName = sprite.name;
+    updateSpritePreview(sprite.pixmaps);
+    m_ui->lineEditSprite->setText(sprite.name);
+    changed();
+}
+
+void ObjectPropertiesDialog::updateTitle()
+{
+    setWindowTitle(tr("Object Properties: %0%1")
+                       .arg(m_object.name)
+                       .arg(m_unsavedChanges ? tr("*") : QString{})
+                   );
+}
+
+void ObjectPropertiesDialog::updateSpritePreview()
+{
+    if (m_spriteName.isEmpty())
+        m_ui->labelSpritePreview->setPixmap(QPixmap{});
+    else
+    {
+        const auto &sprites = m_projectModel.project()->sprites;
+        const auto iter = std::find_if(std::cbegin(sprites), std::cend(sprites),
+                                       [&](const Sprite &sprite){ return sprite.name == m_spriteName; });
+        if (iter == std::cend(sprites))
+            qWarning() << "sprite" << m_spriteName << "not found";
+        else
+            updateSpritePreview(iter->pixmaps);
+    }
+}
+
+void ObjectPropertiesDialog::updateSpritePreview(const std::vector<QPixmap> &pixmaps)
+{
+    m_ui->labelSpritePreview->setPixmap(pixmaps.empty() ? QPixmap{} : pixmaps.front().scaled(32, m_ui->labelSpritePreview->height(), Qt::KeepAspectRatio));
+}

src/editor/dialogs/objectpropertiesdialog.h

@@ -0,0 +1,68 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+#include <map>
+
+#include "projectcontainer.h"
+
+class QMenu;
+namespace Ui { class ObjectPropertiesDialog; }
+class ProjectTreeModel;
+class ObjectEventsModel;
+
+class ObjectPropertiesDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit ObjectPropertiesDialog(Object &object, ProjectTreeModel &projectModel, QWidget *parent = nullptr);
+    ~ObjectPropertiesDialog();
+
+    void accept() override;
+    void reject() override;
+
+private slots:
+    void newSprite();
+    void editSprite();
+    void showInformation();
+    void addEvent();
+    void deleteEvent();
+    void replaceEvent();
+    void duplicateEvent();
+
+    void changed();
+
+    void objectNameChanged(const Object &object);
+    void spriteNameChanged(const Sprite &sprite, const QString &oldName);
+    void spriteAboutToBeRemoved(const Sprite &sprite);
+    void spritePixmapsChanged(const Sprite &sprite);
+
+    void spritesMenuAboutToShow();
+    void currentEventChanged(const QModelIndex &index);
+    void eventsContextMenuRequested(const QPoint &pos);
+
+    void clearSprite();
+    void setSprite(const Sprite &sprite);
+
+private:
+    void updateTitle();
+    void updateSpritePreview();
+    void updateSpritePreview(const std::vector<QPixmap> &pixmaps);
+
+    const std::unique_ptr<Ui::ObjectPropertiesDialog> m_ui;
+
+    Object &m_object;
+    ProjectTreeModel &m_projectModel;
+
+    Object::events_container_t m_events;
+
+    const std::unique_ptr<ObjectEventsModel> m_eventsModel;
+
+    QMenu * const m_spritesMenu;
+
+    QString m_spriteName;
+
+    bool m_unsavedChanges{};
+};

src/editor/dialogs/objectpropertiesdialog.ui

@@ -0,0 +1,455 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ObjectPropertiesDialog</class>
+ <widget class="QDialog" name="ObjectPropertiesDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>894</width>
+    <height>496</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Object Properties</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../resources.qrc">
+    <normaloff>:/qtgameengine/icons/object-file.png</normaloff>:/qtgameengine/icons/object-file.png</iconset>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout_4" stretch="0,0,1">
+   <item>
+    <layout class="QVBoxLayout" name="verticalLayout">
+     <item>
+      <layout class="QFormLayout" name="formLayout">
+       <item row="0" column="0">
+        <widget class="QLabel" name="labelName">
+         <property name="text">
+          <string>&amp;Name:</string>
+         </property>
+         <property name="buddy">
+          <cstring>lineEditName</cstring>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="1">
+        <widget class="QLineEdit" name="lineEditName">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Ignored" vsizetype="Fixed">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="toolTip">
+          <string>The name of the object</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <widget class="QGroupBox" name="groupBoxSprite">
+       <property name="title">
+        <string>Sprite</string>
+       </property>
+       <layout class="QHBoxLayout" name="horizontalLayout_6">
+        <item>
+         <widget class="QLabel" name="labelSpritePreview">
+          <property name="minimumSize">
+           <size>
+            <width>32</width>
+            <height>0</height>
+           </size>
+          </property>
+          <property name="maximumSize">
+           <size>
+            <width>32</width>
+            <height>16777215</height>
+           </size>
+          </property>
+          <property name="alignment">
+           <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignTop</set>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <layout class="QVBoxLayout" name="verticalLayout_4">
+          <item>
+           <layout class="QHBoxLayout" name="horizontalLayout_7">
+            <item>
+             <widget class="QLineEdit" name="lineEditSprite">
+              <property name="toolTip">
+               <string>The sprite used to represent the object</string>
+              </property>
+              <property name="readOnly">
+               <bool>true</bool>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QToolButton" name="toolButtonSprite">
+              <property name="text">
+               <string>...</string>
+              </property>
+              <property name="popupMode">
+               <enum>QToolButton::InstantPopup</enum>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </item>
+          <item>
+           <layout class="QHBoxLayout" name="horizontalLayout_8">
+            <item>
+             <widget class="QPushButton" name="pushButtonNewSprite">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Ignored" vsizetype="Fixed">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="toolTip">
+               <string>Create a new sprite for this object</string>
+              </property>
+              <property name="text">
+               <string>New</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QPushButton" name="pushButtonEditSprite">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Ignored" vsizetype="Fixed">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="toolTip">
+               <string>Edit the sprite for this object</string>
+              </property>
+              <property name="text">
+               <string>Edit</string>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </item>
+         </layout>
+        </item>
+       </layout>
+      </widget>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout">
+       <item>
+        <widget class="QCheckBox" name="checkBoxVisible">
+         <property name="toolTip">
+          <string>Whether the object is visible</string>
+         </property>
+         <property name="text">
+          <string>Visible</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="checkBoxSolid">
+         <property name="toolTip">
+          <string>Whether the object is solid</string>
+         </property>
+         <property name="text">
+          <string>Solid</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QFormLayout" name="formLayout_2">
+       <item row="0" column="0">
+        <widget class="QLabel" name="labelDepth">
+         <property name="text">
+          <string>Depth:</string>
+         </property>
+         <property name="buddy">
+          <cstring>spinBoxDepth</cstring>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="1">
+        <widget class="QSpinBox" name="spinBoxDepth">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Ignored" vsizetype="Fixed">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="toolTip">
+          <string>The depth at which the object is drawn</string>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="1">
+        <widget class="QCheckBox" name="checkBoxPersistent">
+         <property name="toolTip">
+          <string>Wheter the object is persistent between rooms</string>
+         </property>
+         <property name="text">
+          <string>Persistent</string>
+         </property>
+        </widget>
+       </item>
+       <item row="2" column="0">
+        <widget class="QLabel" name="labelParent">
+         <property name="text">
+          <string>Parent:</string>
+         </property>
+         <property name="buddy">
+          <cstring>lineEditParent</cstring>
+         </property>
+        </widget>
+       </item>
+       <item row="2" column="1">
+        <layout class="QHBoxLayout" name="horizontalLayout_2">
+         <item>
+          <widget class="QLineEdit" name="lineEditParent">
+           <property name="sizePolicy">
+            <sizepolicy hsizetype="Ignored" vsizetype="Fixed">
+             <horstretch>0</horstretch>
+             <verstretch>0</verstretch>
+            </sizepolicy>
+           </property>
+           <property name="toolTip">
+            <string>The parent from which events and actions are</string>
+           </property>
+           <property name="text">
+            <string>&lt;no parent&gt;</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QToolButton" name="toolButtonParent">
+           <property name="text">
+            <string>...</string>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </item>
+       <item row="3" column="1">
+        <layout class="QHBoxLayout" name="horizontalLayout_3">
+         <item>
+          <widget class="QLineEdit" name="lineEditMask">
+           <property name="sizePolicy">
+            <sizepolicy hsizetype="Ignored" vsizetype="Fixed">
+             <horstretch>0</horstretch>
+             <verstretch>0</verstretch>
+            </sizepolicy>
+           </property>
+           <property name="toolTip">
+            <string>The image used as a collision mask for the object</string>
+           </property>
+           <property name="text">
+            <string>&lt;same as sprite&gt;</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QToolButton" name="toolButtonMask">
+           <property name="text">
+            <string>...</string>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </item>
+       <item row="3" column="0">
+        <widget class="QLabel" name="labelMask">
+         <property name="text">
+          <string>Mask:</string>
+         </property>
+         <property name="buddy">
+          <cstring>lineEditMask</cstring>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <spacer name="verticalSpacer_2">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+       <property name="sizeType">
+        <enum>QSizePolicy::Minimum</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>10</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButtonShowInformation">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Ignored" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="toolTip">
+        <string>Show the information about the object</string>
+       </property>
+       <property name="text">
+        <string>Show Information</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../resources.qrc">
+         <normaloff>:/qtgameengine/icons/info.png</normaloff>:/qtgameengine/icons/info.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="verticalSpacer">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>40</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QDialogButtonBox" name="buttonBox">
+       <property name="standardButtons">
+        <set>QDialogButtonBox::Ok</set>
+       </property>
+       <property name="centerButtons">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <layout class="QVBoxLayout" name="verticalLayout_2">
+     <item>
+      <widget class="QLabel" name="labelEvents">
+       <property name="text">
+        <string>Events:</string>
+       </property>
+       <property name="buddy">
+        <cstring>listViewEvents</cstring>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QListView" name="listViewEvents">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Ignored" vsizetype="Expanding">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="contextMenuPolicy">
+        <enum>Qt::CustomContextMenu</enum>
+       </property>
+       <property name="iconSize">
+        <size>
+         <width>16</width>
+         <height>16</height>
+        </size>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButtonAddEvent">
+       <property name="toolTip">
+        <string>Click here to add another event</string>
+       </property>
+       <property name="text">
+        <string>Add Event</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_5">
+       <item>
+        <widget class="QPushButton" name="pushButtonDeleteEvent">
+         <property name="toolTip">
+          <string>Delete the currently selected event</string>
+         </property>
+         <property name="text">
+          <string>Delete</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QPushButton" name="pushButtonChangeEvent">
+         <property name="toolTip">
+          <string>Change which event has this behaviour</string>
+         </property>
+         <property name="text">
+          <string>Change</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="ActionsContainerWidget" name="actionsWidget" native="true"/>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>ActionsContainerWidget</class>
+   <extends>QWidget</extends>
+   <header>widgets/actionscontainerwidget.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
+ <resources>
+  <include location="../resources.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>ObjectPropertiesDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>138</x>
+     <y>511</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>423</x>
+     <y>266</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>ObjectPropertiesDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>138</x>
+     <y>511</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>423</x>
+     <y>266</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/pathpropertiesdialog.cpp

@@ -0,0 +1,365 @@
+#include "pathpropertiesdialog.h"
+#include "ui_pathpropertiesdialog.h"
+
+#include <QSpinBox>
+#include <QLabel>
+#include <QDebug>
+#include <QMessageBox>
+#include <QSignalBlocker>
+
+#include "projectcontainer.h"
+#include "models/projecttreemodel.h"
+#include "models/pathpointsmodel.h"
+
+PathPropertiesDialog::PathPropertiesDialog(Path &path, ProjectTreeModel &projectModel, QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::PathPropertiesDialog>()},
+    m_path{path},
+    m_projectModel{projectModel},
+    m_points{path.points},
+    m_pointsModel{std::make_unique<PathPointsModel>(m_points, this)},
+    m_spinBoxSnapX{new QSpinBox{this}},
+    m_spinBoxSnapY{new QSpinBox{this}},
+    m_labelX{new QLabel{tr("x: %0").arg(0)}},
+    m_labelY{new QLabel{tr("y: %0").arg(0)}},
+    m_labelArea{new QLabel{tr("Area: (%0,%1)->(%2,%3)").arg(0).arg(0).arg(0).arg(0)}}
+{
+    m_ui->setupUi(this);
+
+    m_ui->widget->setPoints(&m_points);
+
+    updateTitle();
+
+    {
+        auto label = new QLabel{tr("Snap X:"), this};
+        label->setBuddy(m_spinBoxSnapX);
+        m_ui->toolBar->insertWidget(m_ui->toolBar->actions().at(18), label);
+    }
+    m_spinBoxSnapX->setValue(m_ui->widget->gridX());
+    m_spinBoxSnapX->setMaximumWidth(50);
+    m_ui->toolBar->insertWidget(m_ui->toolBar->actions().at(19), m_spinBoxSnapX);
+
+    {
+        auto label = new QLabel{tr("Snap Y:"), this};
+        label->setBuddy(m_spinBoxSnapY);
+        m_ui->toolBar->insertWidget(m_ui->toolBar->actions().at(20), label);
+    }
+    m_spinBoxSnapY->setValue(m_ui->widget->gridY());
+    m_spinBoxSnapY->setMaximumWidth(50);
+    m_ui->toolBar->insertWidget(m_ui->toolBar->actions().at(21), m_spinBoxSnapY);
+
+    m_ui->actionGrid->setChecked(m_ui->widget->showGrid());
+
+    m_ui->treeView->setModel(m_pointsModel.get());
+
+    m_ui->radioButtonStraight->setChecked(m_path.type == Path::Type::Straight);
+    m_ui->radioButtonSmooth->setChecked(m_path.type == Path::Type::Smooth);
+    m_ui->checkBoxClosed->setChecked(m_path.closed);
+    m_ui->spinBoxPrecision->setValue(m_path.precision);
+
+    m_ui->widget->setClosed(m_path.closed);
+
+    m_labelX->setFrameStyle(QFrame::Sunken);
+    m_ui->statusbar->addWidget(m_labelX, 1);
+    m_labelY->setFrameStyle(QFrame::Sunken);
+    m_ui->statusbar->addWidget(m_labelY, 1);
+    m_labelArea->setFrameStyle(QFrame::Sunken);
+    m_ui->statusbar->addWidget(m_labelArea, 4);
+
+    {
+        auto frame = new QFrame{this};
+        frame->setFrameStyle(QFrame::Sunken);
+        m_ui->statusbar->addPermanentWidget(frame, 2);
+    }
+
+    m_ui->lineEditName->setText(m_path.name);
+
+    m_ui->treeView->setColumnWidth(1, 75);
+
+    connect(m_ui->widget, &PathPointsWidget::pointInserted,
+            m_pointsModel.get(), &PathPointsModel::pointInserted);
+    connect(m_ui->widget, &PathPointsWidget::pointMoved,
+            m_pointsModel.get(), &PathPointsModel::pointMoved);
+
+    connect(&m_projectModel, &ProjectTreeModel::pathNameChanged,
+            this, &PathPropertiesDialog::pathNameChanged);
+
+    connect(m_ui->treeView->selectionModel(), &QItemSelectionModel::currentChanged,
+            this, &PathPropertiesDialog::selectionChanged);
+
+    connect(m_ui->widget, &PathPointsWidget::gridXChanged,
+            m_spinBoxSnapX, &QSpinBox::setValue);
+    connect(m_ui->widget, &PathPointsWidget::gridYChanged,
+            m_spinBoxSnapY, &QSpinBox::setValue);
+    connect(m_ui->widget, &PathPointsWidget::showGridChanged,
+            m_ui->actionGrid, &QAction::setChecked);
+    connect(m_ui->widget, &PathPointsWidget::closedChanged,
+            m_ui->checkBoxClosed, &QCheckBox::setChecked);
+    connect(m_ui->widget, &PathPointsWidget::cursorMoved,
+            this, &PathPropertiesDialog::cursorMoved);
+    connect(m_ui->widget, &PathPointsWidget::selectedIndexChanged,
+            this, &PathPropertiesDialog::selectedPointChanged);
+
+    connect(m_spinBoxSnapX, &QSpinBox::valueChanged,
+            m_ui->widget, &PathPointsWidget::setGridX);
+    connect(m_spinBoxSnapY, &QSpinBox::valueChanged,
+            m_ui->widget, &PathPointsWidget::setGridY);
+    connect(m_ui->actionGrid, &QAction::toggled,
+            m_ui->widget, &PathPointsWidget::setShowGrid);
+    connect(m_ui->checkBoxClosed, &QCheckBox::toggled,
+            m_ui->widget, &PathPointsWidget::setClosed);
+
+    connect(m_ui->spinBoxX, &QSpinBox::valueChanged,
+            this, &PathPropertiesDialog::pointFieldsChanged);
+    connect(m_ui->spinBoxY, &QSpinBox::valueChanged,
+            this, &PathPropertiesDialog::pointFieldsChanged);
+    connect(m_ui->spinBoxSp, &QSpinBox::valueChanged,
+            this, &PathPropertiesDialog::pointFieldsChanged);
+
+    connect(m_ui->pushButtonAdd, &QAbstractButton::clicked,
+            this, &PathPropertiesDialog::addPoint);
+    connect(m_ui->pushButtonInsert, &QAbstractButton::clicked,
+            this, &PathPropertiesDialog::insertPoint);
+    connect(m_ui->pushButtonDelete, &QAbstractButton::clicked,
+            this, &PathPropertiesDialog::deletePoint);
+
+    connect(m_ui->lineEditName, &QLineEdit::textChanged,
+            this, &PathPropertiesDialog::changed);
+
+    connect(m_pointsModel.get(), &QAbstractTableModel::rowsInserted,
+            this, &PathPropertiesDialog::changed);
+    connect(m_pointsModel.get(), &QAbstractTableModel::rowsInserted,
+            m_ui->widget, qOverload<>(&PathPointsWidget::update));
+    connect(m_pointsModel.get(), &QAbstractTableModel::rowsRemoved,
+            this, &PathPropertiesDialog::changed);
+    connect(m_pointsModel.get(), &QAbstractTableModel::rowsRemoved,
+            m_ui->widget, qOverload<>(&PathPointsWidget::update));
+    connect(m_pointsModel.get(), &QAbstractTableModel::dataChanged,
+            this, &PathPropertiesDialog::dataChanged);
+    connect(m_pointsModel.get(), &QAbstractTableModel::dataChanged,
+            this, &PathPropertiesDialog::changed);
+    connect(m_pointsModel.get(), &QAbstractTableModel::dataChanged,
+            m_ui->widget, qOverload<>(&PathPointsWidget::update));
+    connect(m_ui->radioButtonStraight, &QRadioButton::toggled,
+            this, &PathPropertiesDialog::changed);
+    connect(m_ui->radioButtonSmooth, &QRadioButton::toggled,
+            this, &PathPropertiesDialog::changed);
+    connect(m_ui->checkBoxClosed, &QCheckBox::toggled,
+            this, &PathPropertiesDialog::changed);
+    connect(m_ui->spinBoxPrecision, &QSpinBox::valueChanged,
+            this, &PathPropertiesDialog::changed);
+}
+
+PathPropertiesDialog::~PathPropertiesDialog() = default;
+
+void PathPropertiesDialog::accept()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    if (m_path.name != m_ui->lineEditName->text())
+    {
+        if (!m_projectModel.rename<Path>(m_path, m_ui->lineEditName->text()))
+        {
+            QMessageBox::critical(this, tr("Renaming Path failed!"), tr("Renaming Path failed!"));
+            return;
+        }
+    }
+
+    m_path.points = m_points;
+
+    if (m_ui->radioButtonStraight->isChecked())
+        m_path.type = Path::Type::Straight;
+    else if (m_ui->radioButtonSmooth->isChecked())
+        m_path.type = Path::Type::Smooth;
+    else
+    {
+        QMessageBox::critical(this, tr("No kind selected!"), tr("No kind selected!"));
+        return;
+    }
+
+    m_path.closed = m_ui->checkBoxClosed->isChecked();
+    m_path.precision = m_ui->spinBoxPrecision->value();
+
+    // TODO update points
+
+    QDialog::accept();
+}
+
+void PathPropertiesDialog::reject()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    const auto result = QMessageBox::warning(
+        this,
+        tr("The Path has been modified."),
+        tr("Do you want to save your changes?"),
+        QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel,
+        QMessageBox::Save
+    );
+    switch (result)
+    {
+    case QMessageBox::Save:
+        accept();
+        return;
+    case QMessageBox::Discard:
+        QDialog::reject();
+        return;
+    case QMessageBox::Cancel:
+        return;
+    default:
+        qWarning() << "unexpected dialog result" << result;
+    }
+}
+
+void PathPropertiesDialog::selectionChanged(const QModelIndex &index)
+{
+    if (!index.isValid())
+    {
+        m_ui->widget->setSelectedIndex(std::nullopt);
+        return;
+    }
+
+    m_ui->widget->setSelectedIndex(index.row());
+
+    updatePointFields();
+}
+
+void PathPropertiesDialog::selectedPointChanged(const std::optional<std::size_t> &index)
+{
+    m_ui->treeView->setCurrentIndex(index ? m_pointsModel->index(*index, 0, {}) : QModelIndex{});
+}
+
+void PathPropertiesDialog::dataChanged(const QModelIndex &index)
+{
+    if (index == m_ui->treeView->currentIndex())
+        updatePointFields();
+}
+
+void PathPropertiesDialog::cursorMoved(const QPoint &point)
+{
+    m_labelX->setText(tr("X: %0").arg(point.x()));
+    m_labelY->setText(tr("Y: %0").arg(point.y()));
+}
+
+void PathPropertiesDialog::addPoint()
+{
+    if (!m_pointsModel->insertPoint(m_points.size(), getPointFromFields()))
+    {
+        QMessageBox::warning(this, tr("Could not add Point!"), tr("Could not add Point!"));
+        return;
+    }
+}
+
+void PathPropertiesDialog::insertPoint()
+{
+    const auto index = m_ui->treeView->currentIndex();
+    if (!index.isValid())
+        return;
+
+    if (!m_pointsModel->insertPoint(index.row() + 1, getPointFromFields()))
+    {
+        QMessageBox::warning(this, tr("Could not insert Point!"), tr("Could not insert Point!"));
+        return;
+    }
+}
+
+void PathPropertiesDialog::deletePoint()
+{
+    const auto index = m_ui->treeView->currentIndex();
+    if (!index.isValid())
+        return;
+
+    if (!m_pointsModel->removeRows(index.row(), 1))
+    {
+        QMessageBox::warning(this, tr("Could not remove Point!"), tr("Could not remove Point!"));
+        return;
+    }
+}
+
+void PathPropertiesDialog::pointFieldsChanged()
+{
+    const auto index = m_ui->treeView->currentIndex();
+    if (!index.isValid())
+        return;
+
+    if (!m_pointsModel->updatePoint(index.row(), getPointFromFields()))
+    {
+        QMessageBox::warning(this, tr("Could not update Point!"), tr("Could not update Point!"));
+        return;
+    }
+
+    changed();
+}
+
+void PathPropertiesDialog::changed()
+{
+    if (!m_unsavedChanges)
+    {
+        m_unsavedChanges = true;
+        updateTitle();
+    }
+}
+
+void PathPropertiesDialog::pathNameChanged(const Path &path)
+{
+    if (&path != &m_path)
+        return;
+
+    {
+        QSignalBlocker blocker{m_ui->lineEditName};
+        m_ui->lineEditName->setText(path.name);
+    }
+
+    updateTitle();
+}
+
+void PathPropertiesDialog::updateTitle()
+{
+    setWindowTitle(tr("Path Properties: %0%1")
+                       .arg(m_path.name)
+                       .arg(m_unsavedChanges ? tr("*") : QString{})
+                   );
+}
+
+void PathPropertiesDialog::updatePointFields()
+{
+    const auto index = m_ui->treeView->currentIndex();
+    if (!index.isValid())
+        return;
+
+    const auto point = m_pointsModel->getPoint(index);
+    if (!point)
+        return;
+
+    {
+        QSignalBlocker blocker{m_ui->spinBoxX};
+        m_ui->spinBoxX->setValue(point->point.x());
+    }
+    {
+        QSignalBlocker blocker{m_ui->spinBoxY};
+        m_ui->spinBoxY->setValue(point->point.y());
+    }
+    {
+        QSignalBlocker blocker{m_ui->spinBoxSp};
+        m_ui->spinBoxSp->setValue(point->sp);
+    }
+}
+
+Path::Point PathPropertiesDialog::getPointFromFields() const
+{
+    return Path::Point{
+        .point{
+            m_ui->spinBoxX->value(),
+            m_ui->spinBoxY->value()
+        },
+        .sp = m_ui->spinBoxSp->value()
+    };
+}

src/editor/dialogs/pathpropertiesdialog.h

@@ -0,0 +1,65 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+#include <optional>
+
+#include "projectcontainer.h"
+
+class QSpinBox;
+class QLabel;
+namespace Ui { class PathPropertiesDialog; }
+class ProjectTreeModel;
+class PathPointsModel;
+
+class PathPropertiesDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit PathPropertiesDialog(Path &path, ProjectTreeModel &projectModel, QWidget *parent = nullptr);
+    ~PathPropertiesDialog();
+
+    void accept() override;
+    void reject() override;
+
+private slots:
+    void selectionChanged(const QModelIndex &index);
+    void selectedPointChanged(const std::optional<std::size_t> &index);
+    void dataChanged(const QModelIndex &index);
+    void cursorMoved(const QPoint &point);
+
+    void addPoint();
+    void insertPoint();
+    void deletePoint();
+
+    void pointFieldsChanged();
+    void changed();
+
+    void pathNameChanged(const Path &path);
+
+private:
+    void updateTitle();
+    void updatePointFields();
+
+    Path::Point getPointFromFields() const;
+
+    const std::unique_ptr<Ui::PathPropertiesDialog> m_ui;
+
+    Path &m_path;
+    ProjectTreeModel &m_projectModel;
+
+    std::vector<Path::Point> m_points;
+
+    const std::unique_ptr<PathPointsModel> m_pointsModel;
+
+    bool m_unsavedChanges{};
+
+    QSpinBox * const m_spinBoxSnapX;
+    QSpinBox * const m_spinBoxSnapY;
+
+    QLabel * const m_labelX;
+    QLabel * const m_labelY;
+    QLabel * const m_labelArea;
+};

src/editor/dialogs/pathpropertiesdialog.ui

@@ -0,0 +1,639 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PathPropertiesDialog</class>
+ <widget class="QDialog" name="PathPropertiesDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>921</width>
+    <height>576</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Path Properties</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../resources.qrc">
+    <normaloff>:/qtgameengine/icons/path-file.png</normaloff>:/qtgameengine/icons/path-file.png</iconset>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_2" stretch="0,1">
+   <property name="spacing">
+    <number>0</number>
+   </property>
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <widget class="QFrame" name="frame">
+     <property name="frameShape">
+      <enum>QFrame::Panel</enum>
+     </property>
+     <property name="frameShadow">
+      <enum>QFrame::Raised</enum>
+     </property>
+     <layout class="QHBoxLayout">
+      <property name="spacing">
+       <number>0</number>
+      </property>
+      <property name="leftMargin">
+       <number>0</number>
+      </property>
+      <property name="topMargin">
+       <number>0</number>
+      </property>
+      <property name="rightMargin">
+       <number>0</number>
+      </property>
+      <property name="bottomMargin">
+       <number>0</number>
+      </property>
+      <item>
+       <widget class="QToolBar" name="toolBar">
+        <property name="windowTitle">
+         <string>toolBar</string>
+        </property>
+        <property name="movable">
+         <bool>false</bool>
+        </property>
+        <property name="iconSize">
+         <size>
+          <width>16</width>
+          <height>16</height>
+         </size>
+        </property>
+        <addaction name="actionOk"/>
+        <addaction name="separator"/>
+        <addaction name="actionUndo"/>
+        <addaction name="separator"/>
+        <addaction name="actionClear"/>
+        <addaction name="actionReverse"/>
+        <addaction name="actionShift"/>
+        <addaction name="actionMirrorHorizontally"/>
+        <addaction name="actionFlipVertically"/>
+        <addaction name="actionRotate"/>
+        <addaction name="actionScale"/>
+        <addaction name="separator"/>
+        <addaction name="actionShiftLeft"/>
+        <addaction name="actionShiftRight"/>
+        <addaction name="actionShiftTop"/>
+        <addaction name="actionShift_bottom"/>
+        <addaction name="actionCenterView"/>
+        <addaction name="separator"/>
+        <addaction name="separator"/>
+        <addaction name="actionGrid"/>
+        <addaction name="actionRoom"/>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout" stretch="0,1">
+     <item>
+      <layout class="QVBoxLayout" name="verticalLayout">
+       <property name="leftMargin">
+        <number>10</number>
+       </property>
+       <property name="topMargin">
+        <number>10</number>
+       </property>
+       <property name="rightMargin">
+        <number>10</number>
+       </property>
+       <property name="bottomMargin">
+        <number>10</number>
+       </property>
+       <item>
+        <layout class="QFormLayout" name="formLayout_3">
+         <item row="0" column="0">
+          <widget class="QLabel" name="labelName">
+           <property name="text">
+            <string>&amp;Name:</string>
+           </property>
+           <property name="buddy">
+            <cstring>lineEditName</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="0" column="1">
+          <widget class="QLineEdit" name="lineEditName">
+           <property name="toolTip">
+            <string>The name of the path</string>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <spacer name="verticalSpacer_2">
+         <property name="orientation">
+          <enum>Qt::Vertical</enum>
+         </property>
+         <property name="sizeType">
+          <enum>QSizePolicy::Fixed</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>20</width>
+           <height>10</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item>
+        <widget class="QTreeView" name="treeView">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Ignored" vsizetype="Expanding">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <spacer name="verticalSpacer_3">
+         <property name="orientation">
+          <enum>Qt::Vertical</enum>
+         </property>
+         <property name="sizeType">
+          <enum>QSizePolicy::Fixed</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>20</width>
+           <height>10</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_4">
+         <item>
+          <layout class="QFormLayout" name="formLayout">
+           <item row="0" column="0">
+            <widget class="QLabel" name="labelX">
+             <property name="text">
+              <string>&amp;X:</string>
+             </property>
+             <property name="buddy">
+              <cstring>spinBoxX</cstring>
+             </property>
+            </widget>
+           </item>
+           <item row="0" column="1">
+            <widget class="QSpinBox" name="spinBoxX">
+             <property name="toolTip">
+              <string>X-coordinate of the point</string>
+             </property>
+             <property name="maximum">
+              <number>16384</number>
+             </property>
+            </widget>
+           </item>
+           <item row="1" column="0">
+            <widget class="QLabel" name="labelY">
+             <property name="text">
+              <string>&amp;Y:</string>
+             </property>
+             <property name="buddy">
+              <cstring>spinBoxY</cstring>
+             </property>
+            </widget>
+           </item>
+           <item row="1" column="1">
+            <widget class="QSpinBox" name="spinBoxY">
+             <property name="toolTip">
+              <string>Y-coordinate of the point</string>
+             </property>
+             <property name="maximum">
+              <number>16384</number>
+             </property>
+            </widget>
+           </item>
+           <item row="2" column="0">
+            <widget class="QLabel" name="labelSp">
+             <property name="text">
+              <string>s&amp;p:</string>
+             </property>
+             <property name="buddy">
+              <cstring>spinBoxSp</cstring>
+             </property>
+            </widget>
+           </item>
+           <item row="2" column="1">
+            <widget class="QSpinBox" name="spinBoxSp">
+             <property name="toolTip">
+              <string>Relative speed at this point (100 = default)</string>
+             </property>
+             <property name="maximum">
+              <number>16384</number>
+             </property>
+            </widget>
+           </item>
+          </layout>
+         </item>
+         <item>
+          <spacer name="horizontalSpacer">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>0</width>
+             <height>0</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+         <item>
+          <layout class="QVBoxLayout" name="verticalLayout_4">
+           <item>
+            <widget class="QPushButton" name="pushButtonAdd">
+             <property name="toolTip">
+              <string>Add the point to the path</string>
+             </property>
+             <property name="text">
+              <string>&amp;Add</string>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QPushButton" name="pushButtonInsert">
+             <property name="toolTip">
+              <string>Insert the point before the current one</string>
+             </property>
+             <property name="text">
+              <string>&amp;Insert</string>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QPushButton" name="pushButtonDelete">
+             <property name="toolTip">
+              <string>Delete the point from the path</string>
+             </property>
+             <property name="text">
+              <string>&amp;Delete</string>
+             </property>
+            </widget>
+           </item>
+          </layout>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <spacer name="verticalSpacer_4">
+         <property name="orientation">
+          <enum>Qt::Vertical</enum>
+         </property>
+         <property name="sizeType">
+          <enum>QSizePolicy::Fixed</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>20</width>
+           <height>10</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_3">
+         <item>
+          <layout class="QVBoxLayout" name="verticalLayout_5">
+           <item>
+            <widget class="QGroupBox" name="groupBoxConnectionKind">
+             <property name="toolTip">
+              <string>Indicate the type of connections between the points</string>
+             </property>
+             <property name="title">
+              <string>connection kind</string>
+             </property>
+             <layout class="QVBoxLayout" name="verticalLayout_3">
+              <item>
+               <widget class="QRadioButton" name="radioButtonStraight">
+                <property name="text">
+                 <string>&amp;Straight lines</string>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QRadioButton" name="radioButtonSmooth">
+                <property name="text">
+                 <string>S&amp;mooth curves</string>
+                </property>
+               </widget>
+              </item>
+             </layout>
+            </widget>
+           </item>
+           <item>
+            <layout class="QFormLayout" name="formLayout_2">
+             <item row="0" column="0">
+              <widget class="QLabel" name="labelPrecision">
+               <property name="text">
+                <string>P&amp;recision:</string>
+               </property>
+               <property name="buddy">
+                <cstring>spinBoxPrecision</cstring>
+               </property>
+              </widget>
+             </item>
+             <item row="0" column="1">
+              <widget class="QSpinBox" name="spinBoxPrecision">
+               <property name="toolTip">
+                <string>Precision with which to create smooth curves</string>
+               </property>
+              </widget>
+             </item>
+            </layout>
+           </item>
+          </layout>
+         </item>
+         <item>
+          <layout class="QVBoxLayout" name="verticalLayout_6">
+           <item>
+            <widget class="QCheckBox" name="checkBoxClosed">
+             <property name="text">
+              <string>Closed</string>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <spacer name="verticalSpacer">
+             <property name="orientation">
+              <enum>Qt::Vertical</enum>
+             </property>
+             <property name="sizeHint" stdset="0">
+              <size>
+               <width>0</width>
+               <height>0</height>
+              </size>
+             </property>
+            </spacer>
+           </item>
+          </layout>
+         </item>
+        </layout>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QVBoxLayout" name="verticalLayout_7" stretch="1,0">
+       <item>
+        <widget class="PathPointsWidget" name="widget" native="true">
+         <property name="minimumSize">
+          <size>
+           <width>300</width>
+           <height>0</height>
+          </size>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QStatusBar" name="statusbar"/>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </item>
+  </layout>
+  <action name="actionOk">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/ok.png</normaloff>:/qtgameengine/icons/ok.png</iconset>
+   </property>
+   <property name="text">
+    <string>OK</string>
+   </property>
+   <property name="toolTip">
+    <string>Close the form, saving the changes</string>
+   </property>
+  </action>
+  <action name="actionUndo">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/undo.png</normaloff>:/qtgameengine/icons/undo.png</iconset>
+   </property>
+   <property name="text">
+    <string>Undo</string>
+   </property>
+   <property name="toolTip">
+    <string>Undo the last changes in the path</string>
+   </property>
+  </action>
+  <action name="actionClear">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/new.png</normaloff>:/qtgameengine/icons/new.png</iconset>
+   </property>
+   <property name="text">
+    <string>Clear</string>
+   </property>
+   <property name="toolTip">
+    <string>Clear the path</string>
+   </property>
+  </action>
+  <action name="actionReverse">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/rotate.png</normaloff>:/qtgameengine/icons/rotate.png</iconset>
+   </property>
+   <property name="text">
+    <string>Reverse</string>
+   </property>
+   <property name="toolTip">
+    <string>Reverse the path</string>
+   </property>
+  </action>
+  <action name="actionShift">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/move.png</normaloff>:/qtgameengine/icons/move.png</iconset>
+   </property>
+   <property name="text">
+    <string>Shift</string>
+   </property>
+   <property name="toolTip">
+    <string>Shift the path</string>
+   </property>
+  </action>
+  <action name="actionMirrorHorizontally">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/flip-horizontal.png</normaloff>:/qtgameengine/icons/flip-horizontal.png</iconset>
+   </property>
+   <property name="text">
+    <string>Mirror horizontally</string>
+   </property>
+   <property name="toolTip">
+    <string>Mirror the path horizontally</string>
+   </property>
+  </action>
+  <action name="actionFlipVertically">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/flip-vertical.png</normaloff>:/qtgameengine/icons/flip-vertical.png</iconset>
+   </property>
+   <property name="text">
+    <string>Flip vertically</string>
+   </property>
+   <property name="toolTip">
+    <string>Flip the path vertically</string>
+   </property>
+  </action>
+  <action name="actionRotate">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/rotate.png</normaloff>:/qtgameengine/icons/rotate.png</iconset>
+   </property>
+   <property name="text">
+    <string>Rotate</string>
+   </property>
+   <property name="toolTip">
+    <string>Rotate the path</string>
+   </property>
+  </action>
+  <action name="actionScale">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/scale.png</normaloff>:/qtgameengine/icons/scale.png</iconset>
+   </property>
+   <property name="text">
+    <string>Scale</string>
+   </property>
+   <property name="toolTip">
+    <string>Scale the path</string>
+   </property>
+  </action>
+  <action name="actionShiftLeft">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/arrow-left.png</normaloff>:/qtgameengine/icons/arrow-left.png</iconset>
+   </property>
+   <property name="text">
+    <string>Shift Left</string>
+   </property>
+   <property name="toolTip">
+    <string>Shift the view to the left</string>
+   </property>
+  </action>
+  <action name="actionShiftRight">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/arrow-right.png</normaloff>:/qtgameengine/icons/arrow-right.png</iconset>
+   </property>
+   <property name="text">
+    <string>Shift right</string>
+   </property>
+   <property name="toolTip">
+    <string>Shift the view to the right</string>
+   </property>
+  </action>
+  <action name="actionShiftTop">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/arrow-up.png</normaloff>:/qtgameengine/icons/arrow-up.png</iconset>
+   </property>
+   <property name="text">
+    <string>Shift top</string>
+   </property>
+   <property name="toolTip">
+    <string>Shift the view to the top</string>
+   </property>
+  </action>
+  <action name="actionShift_bottom">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/arrow-down.png</normaloff>:/qtgameengine/icons/arrow-down.png</iconset>
+   </property>
+   <property name="text">
+    <string>Shift bottom</string>
+   </property>
+   <property name="toolTip">
+    <string>Shift the view to the bottom</string>
+   </property>
+  </action>
+  <action name="actionCenterView">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/center.png</normaloff>:/qtgameengine/icons/center.png</iconset>
+   </property>
+   <property name="text">
+    <string>Center view</string>
+   </property>
+   <property name="toolTip">
+    <string>Center view around the path</string>
+   </property>
+  </action>
+  <action name="actionGrid">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="checked">
+    <bool>true</bool>
+   </property>
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/grid.png</normaloff>:/qtgameengine/icons/grid.png</iconset>
+   </property>
+   <property name="text">
+    <string>Grid</string>
+   </property>
+   <property name="toolTip">
+    <string>Toggle the showing of the grid</string>
+   </property>
+  </action>
+  <action name="actionRoom">
+   <property name="icon">
+    <iconset resource="../resources.qrc">
+     <normaloff>:/qtgameengine/icons/room.png</normaloff>:/qtgameengine/icons/room.png</iconset>
+   </property>
+   <property name="text">
+    <string>Room</string>
+   </property>
+   <property name="toolTip">
+    <string>Indicate the room to show as background</string>
+   </property>
+  </action>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>PathPointsWidget</class>
+   <extends>QWidget</extends>
+   <header>widgets/pathpointswidget.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
+ <resources>
+  <include location="../resources.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>actionOk</sender>
+   <signal>triggered()</signal>
+   <receiver>PathPropertiesDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>363</x>
+     <y>224</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/preferencesdialog.cpp

@@ -0,0 +1,23 @@
+#include "preferencesdialog.h"
+#include "ui_preferencesdialog.h"
+
+#include <QPushButton>
+
+PreferencesDialog::PreferencesDialog(QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::PreferencesDialog>()}
+{
+    m_ui->setupUi(this);
+
+#ifdef Q_OS_LINUX
+    setWindowFlags((windowFlags() & ~Qt::Dialog) | Qt::Window);
+#endif
+    setWindowFlag(Qt::WindowCloseButtonHint);
+
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Ok))
+        button->setIcon(QIcon{":/qtgameengine/icons/ok.png"});
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Cancel))
+        button->setIcon(QIcon{":/qtgameengine/icons/delete.png"});
+}
+
+PreferencesDialog::~PreferencesDialog() = default;

src/editor/dialogs/preferencesdialog.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+
+namespace Ui { class PreferencesDialog; }
+
+class PreferencesDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit PreferencesDialog(QWidget *parent = nullptr);
+    ~PreferencesDialog();
+
+private:
+    const std::unique_ptr<Ui::PreferencesDialog> m_ui;
+};

src/editor/dialogs/preferencesdialog.ui

@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PreferencesDialog</class>
+ <widget class="QDialog" name="PreferencesDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Preferences</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout" stretch="1,0">
+   <item>
+    <widget class="QTabWidget" name="tabWidget">
+     <widget class="QWidget" name="tabGeneral">
+      <attribute name="title">
+       <string>General</string>
+      </attribute>
+     </widget>
+     <widget class="QWidget" name="tabForms">
+      <attribute name="title">
+       <string>Forms</string>
+      </attribute>
+     </widget>
+     <widget class="QWidget" name="tabScriptsAndCode">
+      <attribute name="title">
+       <string>Scripts and Code</string>
+      </attribute>
+     </widget>
+     <widget class="QWidget" name="tabEditors">
+      <attribute name="title">
+       <string>Editors</string>
+      </attribute>
+     </widget>
+    </widget>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>PreferencesDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>199</x>
+     <y>278</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>199</x>
+     <y>149</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>PreferencesDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>199</x>
+     <y>278</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>199</x>
+     <y>149</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/roompropertiesdialog.cpp

@@ -0,0 +1,14 @@
+#include "roompropertiesdialog.h"
+#include "ui_roompropertiesdialog.h"
+
+RoomPropertiesDialog::RoomPropertiesDialog(Room &room, ProjectTreeModel &projectModel, QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::RoomPropertiesDialog>()}
+{
+    Q_UNUSED(room)
+    Q_UNUSED(projectModel)
+
+    m_ui->setupUi(this);
+}
+
+RoomPropertiesDialog::~RoomPropertiesDialog() = default;

src/editor/dialogs/roompropertiesdialog.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+
+namespace Ui { class RoomPropertiesDialog; }
+struct Room;
+class ProjectTreeModel;
+
+class RoomPropertiesDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit RoomPropertiesDialog(Room &room, ProjectTreeModel &projectModel, QWidget *parent = nullptr);
+    ~RoomPropertiesDialog();
+
+private:
+    const std::unique_ptr<Ui::RoomPropertiesDialog> m_ui;
+};

src/editor/dialogs/roompropertiesdialog.ui

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>RoomPropertiesDialog</class>
+ <widget class="QDialog" name="RoomPropertiesDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Room Properties</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../resources.qrc">
+    <normaloff>:/qtgameengine/icons/room-file.png</normaloff>:/qtgameengine/icons/room-file.png</iconset>
+  </property>
+ </widget>
+ <resources>
+  <include location="../resources.qrc"/>
+ </resources>
+ <connections/>
+</ui>

src/editor/dialogs/scriptpropertiesdialog.cpp

@@ -0,0 +1,70 @@
+#include "scriptpropertiesdialog.h"
+#include "ui_codeeditordialog.h"
+
+#include <QLabel>
+#include <QLineEdit>
+#include <QMessageBox>
+#include <QDebug>
+
+#include "projectcontainer.h"
+#include "models/projecttreemodel.h"
+
+ScriptPropertiesDialog::ScriptPropertiesDialog(Script &script, ProjectTreeModel &projectModel, QWidget *parent) :
+    CodeEditorDialog{tr("Script Properties: %0").arg(script.name), parent},
+    m_script{script},
+    m_projectModel{projectModel},
+    m_lineEditName{new QLineEdit{this}}
+{
+    {
+        auto label = new QLabel{tr("&Name:"), this};
+        label->setBuddy(m_lineEditName);
+        addToolbarWidget(label);
+    }
+    m_lineEditName->setMaximumWidth(100);
+    addToolbarWidget(m_lineEditName);
+
+
+    m_lineEditName->setText(m_script.name);
+    setScript(m_script.script);
+
+    connect(&m_projectModel, &ProjectTreeModel::scriptNameChanged,
+            this, &ScriptPropertiesDialog::scriptNameChanged);
+
+    connect(m_lineEditName, &QLineEdit::textChanged,
+            this, &ScriptPropertiesDialog::changed);
+}
+
+void ScriptPropertiesDialog::accept()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    if (m_script.name != m_lineEditName->text())
+    {
+        if (!m_projectModel.rename<Script>(m_script, m_lineEditName->text()))
+        {
+            QMessageBox::critical(this, tr("Renaming Script failed!"), tr("Renaming Script failed!"));
+            return;
+        }
+    }
+
+    m_script.script = script();
+
+    CodeEditorDialog::accept();
+}
+
+void ScriptPropertiesDialog::scriptNameChanged(const Script &script)
+{
+    if (&script != &m_script)
+        return;
+
+    setTitle(tr("Script Properties: %0").arg(script.name));
+
+    {
+        QSignalBlocker blocker{m_lineEditName};
+        m_lineEditName->setText(script.name);
+    }
+}

src/editor/dialogs/scriptpropertiesdialog.h

@@ -0,0 +1,24 @@
+#include "codeeditordialog.h"
+
+class QLineEdit;
+struct Script;
+class ProjectTreeModel;
+
+class ScriptPropertiesDialog : public CodeEditorDialog
+{
+    Q_OBJECT
+
+public:
+    ScriptPropertiesDialog(Script &script, ProjectTreeModel &projectModel, QWidget *parent = nullptr);
+
+    void accept() override;
+
+private slots:
+    void scriptNameChanged(const Script &script);
+
+private:
+    Script &m_script;
+    ProjectTreeModel &m_projectModel;
+
+    QLineEdit * const m_lineEditName;
+};

src/editor/dialogs/soundpropertiesdialog.cpp

@@ -0,0 +1,248 @@
+#include "soundpropertiesdialog.h"
+#include "ui_soundpropertiesdialog.h"
+
+#include <QFileDialog>
+#include <QFile>
+#include <QDebug>
+#include <QMessageBox>
+#include <QFileInfo>
+
+#include "projectcontainer.h"
+#include "models/projecttreemodel.h"
+
+SoundPropertiesDialog::SoundPropertiesDialog(Sound &sound, ProjectTreeModel &projectModel, QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::SoundPropertiesDialog>()},
+    m_sound{sound},
+    m_projectModel{projectModel},
+    m_path{m_sound.path}
+{
+    m_ui->setupUi(this);
+
+    updateTitle();
+
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Ok))
+        button->setIcon(QIcon{":/qtgameengine/icons/ok.png"});
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Cancel))
+        button->setIcon(QIcon{":/qtgameengine/icons/delete.png"});
+
+    m_ui->lineEditName->setText(m_sound.name);
+    if (!m_sound.path.isEmpty())
+    {
+        m_ui->labelFilename->setText(tr("Filename: %0").arg(QFileInfo{m_sound.path}.fileName()));
+        m_soundEffect.setSource(QUrl::fromLocalFile(m_sound.path));
+    }
+    m_ui->radioButtonNormal->setChecked(m_sound.type == Sound::Type::Sound);
+    m_ui->radioButtonMusic->setChecked(m_sound.type == Sound::Type::Music);
+    m_ui->radioButton3D->setChecked(false);
+    m_ui->radioButtonMultimedia->setChecked(false);
+    m_ui->checkBoxChorus->setChecked(m_sound.effects.chorus);
+    m_ui->checkBoxFlanger->setChecked(m_sound.effects.flanger);
+    m_ui->checkBoxGargle->setChecked(m_sound.effects.gargle);
+    m_ui->checkBoxEcho->setChecked(m_sound.effects.echo);
+    m_ui->checkBoxReverb->setChecked(m_sound.effects.reverb);
+    m_ui->horizontalSliderVolume->setValue(m_sound.volume);
+    m_ui->horizontalSliderPan->setValue(m_sound.pan);
+    m_ui->checkBoxPreload->setChecked(m_sound.preload);
+
+    connect(&m_projectModel, &ProjectTreeModel::soundNameChanged,
+            this, &SoundPropertiesDialog::soundNameChanged);
+
+    connect(m_ui->pushButtonLoad, &QAbstractButton::clicked,
+            this, &SoundPropertiesDialog::loadSound);
+    connect(m_ui->pushButtonPlay, &QAbstractButton::clicked,
+            this, &SoundPropertiesDialog::playSound);
+    connect(m_ui->pushButtonStop, &QAbstractButton::clicked,
+            this, &SoundPropertiesDialog::stopSound);
+    connect(m_ui->pushButtonSave, &QAbstractButton::clicked,
+            this, &SoundPropertiesDialog::saveSound);
+    connect(m_ui->pushButtonEdit, &QAbstractButton::clicked,
+            this, &SoundPropertiesDialog::editSound);
+
+    connect(m_ui->lineEditName, &QLineEdit::textChanged,
+            this, &SoundPropertiesDialog::changed);
+    connect(m_ui->radioButtonNormal, &QRadioButton::toggled,
+            this, &SoundPropertiesDialog::changed);
+    connect(m_ui->radioButtonMusic, &QRadioButton::toggled,
+            this, &SoundPropertiesDialog::changed);
+    connect(m_ui->radioButton3D, &QRadioButton::toggled,
+            this, &SoundPropertiesDialog::changed);
+    connect(m_ui->radioButtonMultimedia, &QRadioButton::toggled,
+            this, &SoundPropertiesDialog::changed);
+    connect(m_ui->checkBoxChorus, &QCheckBox::stateChanged,
+            this, &SoundPropertiesDialog::changed);
+    connect(m_ui->checkBoxFlanger, &QCheckBox::stateChanged,
+            this, &SoundPropertiesDialog::changed);
+    connect(m_ui->checkBoxGargle, &QCheckBox::stateChanged,
+            this, &SoundPropertiesDialog::changed);
+    connect(m_ui->checkBoxEcho, &QCheckBox::stateChanged,
+            this, &SoundPropertiesDialog::changed);
+    connect(m_ui->checkBoxReverb, &QCheckBox::stateChanged,
+            this, &SoundPropertiesDialog::changed);
+    connect(m_ui->horizontalSliderVolume, &QSlider::valueChanged,
+            this, &SoundPropertiesDialog::changed);
+    connect(m_ui->horizontalSliderPan, &QSlider::valueChanged,
+            this, &SoundPropertiesDialog::changed);
+    connect(m_ui->checkBoxPreload, &QCheckBox::stateChanged,
+            this, &SoundPropertiesDialog::changed);
+}
+
+SoundPropertiesDialog::~SoundPropertiesDialog() = default;
+
+void SoundPropertiesDialog::accept()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    if (m_sound.name != m_ui->lineEditName->text())
+    {
+        if (!m_projectModel.rename<Sound>(m_sound, m_ui->lineEditName->text()))
+        {
+            QMessageBox::critical(this, tr("Renaming Sound failed!"), tr("Renaming Sound failed!"));
+            return;
+        }
+    }
+
+    m_sound.path = std::move(m_path);
+
+    if (m_ui->radioButtonNormal->isChecked())
+        m_sound.type = Sound::Type::Sound;
+    else if (m_ui->radioButtonMusic->isChecked())
+        m_sound.type = Sound::Type::Music;
+    else if (m_ui->radioButton3D->isChecked() ||
+             m_ui->radioButtonMultimedia->isChecked())
+    {
+        QMessageBox::critical(this, tr("Not implemented"), tr("This kind of sound is not yet supported!"));
+        return;
+    }
+    else
+    {
+        QMessageBox::critical(this, tr("No kind selected!"), tr("No kind selected!"));
+        return;
+    }
+
+    m_sound.effects.chorus = m_ui->checkBoxChorus->isChecked();
+    m_sound.effects.flanger = m_ui->checkBoxFlanger->isChecked();
+    m_sound.effects.gargle = m_ui->checkBoxGargle->isChecked();
+    m_sound.effects.echo = m_ui->checkBoxEcho->isChecked();
+    m_sound.effects.reverb = m_ui->checkBoxReverb->isChecked();
+    m_sound.volume = m_ui->horizontalSliderVolume->value();
+    m_sound.pan = m_ui->horizontalSliderPan->value();
+
+    QDialog::accept();
+}
+
+void SoundPropertiesDialog::reject()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    const auto result = QMessageBox::warning(
+        this,
+        tr("The Sound has been modified."),
+        tr("Do you want to save your changes?"),
+        QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel,
+        QMessageBox::Save
+    );
+    switch (result)
+    {
+    case QMessageBox::Save:
+        accept();
+        return;
+    case QMessageBox::Discard:
+        QDialog::reject();
+        return;
+    case QMessageBox::Cancel:
+        return;
+    default:
+        qWarning() << "unexpected dialog result" << result;
+    }
+}
+
+void SoundPropertiesDialog::loadSound()
+{
+    auto path = QFileDialog::getOpenFileName(this, tr("Open a Sound File..."));
+    if (path.isEmpty())
+        return;
+
+    if (QFile file{path}; !file.open(QIODevice::ReadOnly))
+    {
+        QMessageBox::warning(this, tr("Could not load Sound!"), tr("Could not load Sound!") + "\n\n" + file.errorString());
+        return;
+    }
+
+    m_path = std::move(path);
+    changed();
+    m_ui->labelFilename->setText(tr("Filename: %0").arg(QFileInfo{m_path}.fileName()));
+    m_soundEffect.setSource(QUrl::fromLocalFile(m_path));
+}
+
+void SoundPropertiesDialog::saveSound()
+{
+    if (m_path.isEmpty())
+    {
+        QMessageBox::warning(this, tr("Could not save Sound!"), tr("Could not save Sound!") + "\n\n" + tr("No sound has been selected yet."));
+        return;
+    }
+
+    const auto savePath = QFileDialog::getSaveFileName(this, tr("Save a Sound File..."), m_sound.name + ".wav", tr("WAV Files (*.wav)"));
+    if (savePath.isEmpty())
+        return;
+
+    if (!QFile::copy(m_path, savePath))
+    {
+        QMessageBox::warning(this, tr("Could not save Sound!"), tr("Could not save Sound!"));
+        return;
+    }
+}
+
+void SoundPropertiesDialog::playSound()
+{
+    m_soundEffect.play();
+}
+
+void SoundPropertiesDialog::stopSound()
+{
+    m_soundEffect.stop();
+}
+
+void SoundPropertiesDialog::editSound()
+{
+    QMessageBox::critical(this, tr("Setup not complete"), tr("No valid external editor has been indicated for this type of sound. You can specify this editor in the Preferences."));
+}
+
+void SoundPropertiesDialog::changed()
+{
+    if (!m_unsavedChanges)
+    {
+        m_unsavedChanges = true;
+        updateTitle();
+    }
+}
+
+void SoundPropertiesDialog::soundNameChanged(const Sound &sound)
+{
+    if (&sound != &m_sound)
+        return;
+
+    {
+        QSignalBlocker blocker{m_ui->lineEditName};
+        m_ui->lineEditName->setText(sound.name);
+    }
+
+    updateTitle();
+}
+
+void SoundPropertiesDialog::updateTitle()
+{
+    setWindowTitle(tr("Sound Properties: %0%1")
+                       .arg(m_sound.name)
+                       .arg(m_unsavedChanges ? tr("*") : QString{})
+                   );
+}

src/editor/dialogs/soundpropertiesdialog.h

@@ -0,0 +1,48 @@
+#pragma once
+
+#include <QDialog>
+#include <QString>
+#include <QSoundEffect>
+
+#include <memory>
+
+namespace Ui { class SoundPropertiesDialog; }
+struct Sound;
+class ProjectTreeModel;
+
+class SoundPropertiesDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit SoundPropertiesDialog(Sound &sound, ProjectTreeModel &projectModel, QWidget *parent = nullptr);
+    ~SoundPropertiesDialog();
+
+    void accept() override;
+    void reject() override;
+
+private slots:
+    void loadSound();
+    void saveSound();
+    void playSound();
+    void stopSound();
+    void editSound();
+
+    void changed();
+
+    void soundNameChanged(const Sound &sound);
+
+private:
+    void updateTitle();
+
+    const std::unique_ptr<Ui::SoundPropertiesDialog> m_ui;
+
+    Sound &m_sound;
+    ProjectTreeModel &m_projectModel;
+
+    bool m_unsavedChanges{};
+
+    QString m_path;
+
+    QSoundEffect m_soundEffect;
+};

src/editor/dialogs/soundpropertiesdialog.ui

@@ -0,0 +1,364 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>SoundPropertiesDialog</class>
+ <widget class="QDialog" name="SoundPropertiesDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>239</width>
+    <height>534</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Sound Properties</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../resources.qrc">
+    <normaloff>:/qtgameengine/icons/sound-file.png</normaloff>:/qtgameengine/icons/sound-file.png</iconset>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_4">
+   <item>
+    <layout class="QFormLayout" name="formLayout">
+     <item row="0" column="0">
+      <widget class="QLabel" name="labelName">
+       <property name="text">
+        <string>&amp;Name:</string>
+       </property>
+       <property name="buddy">
+        <cstring>lineEditName</cstring>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="1">
+      <widget class="QLineEdit" name="lineEditName">
+       <property name="toolTip">
+        <string>The name of the sound</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout" stretch="1,0,0">
+     <item>
+      <widget class="QPushButton" name="pushButtonLoad">
+       <property name="toolTip">
+        <string>Load the sound from a file</string>
+       </property>
+       <property name="text">
+        <string>&amp;Load Sound</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../resources.qrc">
+         <normaloff>:/qtgameengine/icons/open.png</normaloff>:/qtgameengine/icons/open.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButtonPlay">
+       <property name="toolTip">
+        <string>Play the sound</string>
+       </property>
+       <property name="text">
+        <string notr="true"/>
+       </property>
+       <property name="icon">
+        <iconset resource="../resources.qrc">
+         <normaloff>:/qtgameengine/icons/run.png</normaloff>:/qtgameengine/icons/run.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButtonStop">
+       <property name="toolTip">
+        <string>Stop the sound</string>
+       </property>
+       <property name="text">
+        <string notr="true"/>
+       </property>
+       <property name="icon">
+        <iconset resource="../resources.qrc">
+         <normaloff>:/qtgameengine/icons/exit.png</normaloff>:/qtgameengine/icons/exit.png</iconset>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QPushButton" name="pushButtonSave">
+     <property name="toolTip">
+      <string>Save the sound to a file</string>
+     </property>
+     <property name="text">
+      <string>Sa&amp;ve Sound</string>
+     </property>
+     <property name="icon">
+      <iconset resource="../resources.qrc">
+       <normaloff>:/qtgameengine/icons/save.png</normaloff>:/qtgameengine/icons/save.png</iconset>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QLabel" name="labelFilename">
+     <property name="text">
+      <string>Filename:</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="groupBoxKind">
+     <property name="toolTip">
+      <string>Set the kind of this sound</string>
+     </property>
+     <property name="title">
+      <string>Kind</string>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout">
+      <item>
+       <widget class="QRadioButton" name="radioButtonNormal">
+        <property name="text">
+         <string>Normal Sound</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QRadioButton" name="radioButtonMusic">
+        <property name="text">
+         <string>Background Music</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QRadioButton" name="radioButton3D">
+        <property name="text">
+         <string>3D Sound</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QRadioButton" name="radioButtonMultimedia">
+        <property name="text">
+         <string>Use multimedia player</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="groupBoxEffects">
+     <property name="toolTip">
+      <string>Set the effects to apply for the sound</string>
+     </property>
+     <property name="title">
+      <string>Effects</string>
+     </property>
+     <layout class="QGridLayout" name="gridLayout">
+      <item row="1" column="0">
+       <widget class="QCheckBox" name="checkBoxFlanger">
+        <property name="text">
+         <string>Flanger</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="0">
+       <widget class="QCheckBox" name="checkBoxChorus">
+        <property name="text">
+         <string>Chorus</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="0">
+       <widget class="QCheckBox" name="checkBoxGargle">
+        <property name="text">
+         <string>Gargle</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QCheckBox" name="checkBoxEcho">
+        <property name="text">
+         <string>Echo</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QCheckBox" name="checkBoxReverb">
+        <property name="text">
+         <string>Reverb</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <layout class="QFormLayout" name="formLayout_2">
+     <item row="0" column="0">
+      <widget class="QLabel" name="labelVolume">
+       <property name="text">
+        <string>Volume:</string>
+       </property>
+       <property name="buddy">
+        <cstring>horizontalSliderVolume</cstring>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="1">
+      <widget class="QSlider" name="horizontalSliderVolume">
+       <property name="toolTip">
+        <string>Indicates the default volume for the sound</string>
+       </property>
+       <property name="maximum">
+        <number>100</number>
+       </property>
+       <property name="value">
+        <number>100</number>
+       </property>
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="0">
+      <widget class="QLabel" name="labelPan">
+       <property name="text">
+        <string>Pan:</string>
+       </property>
+       <property name="buddy">
+        <cstring>horizontalSliderPan</cstring>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="1">
+      <widget class="QSlider" name="horizontalSliderPan">
+       <property name="toolTip">
+        <string>Indicates the default pan for the sound</string>
+       </property>
+       <property name="minimum">
+        <number>-100</number>
+       </property>
+       <property name="maximum">
+        <number>100</number>
+       </property>
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="invertedAppearance">
+        <bool>false</bool>
+       </property>
+       <property name="invertedControls">
+        <bool>false</bool>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QCheckBox" name="checkBoxPreload">
+     <property name="toolTip">
+      <string>Indicates whether to preload the sound when the game starts</string>
+     </property>
+     <property name="text">
+      <string>&amp;Preload</string>
+     </property>
+     <property name="checked">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout_2">
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButtonEdit">
+       <property name="toolTip">
+        <string>Edit the sound using an external sound editor</string>
+       </property>
+       <property name="text">
+        <string>&amp;Edit Sound</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../resources.qrc">
+         <normaloff>:/qtgameengine/icons/sound.png</normaloff>:/qtgameengine/icons/sound.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_2">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Ok</set>
+     </property>
+     <property name="centerButtons">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../resources.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>SoundPropertiesDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>119</x>
+     <y>480</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>119</x>
+     <y>266</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>SoundPropertiesDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>119</x>
+     <y>512</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>119</x>
+     <y>266</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/spritepropertiesdialog.cpp

@@ -0,0 +1,244 @@
+#include "spritepropertiesdialog.h"
+#include "ui_spritepropertiesdialog.h"
+
+#include <QFileDialog>
+#include <QDebug>
+#include <QMessageBox>
+#include <QSignalBlocker>
+
+#include "projectcontainer.h"
+#include "models/projecttreemodel.h"
+#include "editspritedialog.h"
+#include "maskpropertiesdialog.h"
+
+SpritePropertiesDialog::SpritePropertiesDialog(Sprite &sprite, ProjectTreeModel &projectModel, QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::SpritePropertiesDialog>()},
+    m_sprite{sprite},
+    m_projectModel{projectModel},
+    m_pixmaps{m_sprite.pixmaps}
+{
+    m_ui->setupUi(this);
+
+    updateTitle();
+
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Ok))
+        button->setIcon(QIcon{":/qtgameengine/icons/ok.png"});
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Cancel))
+        button->setIcon(QIcon{":/qtgameengine/icons/delete.png"});
+
+    m_ui->lineEditName->setText(m_sprite.name);
+    updateSpriteInfo();
+    m_ui->spinBoxOriginX->setValue(m_sprite.origin.x);
+    m_ui->spinBoxOriginY->setValue(m_sprite.origin.y);
+    m_ui->checkBoxPreciseCollisionChecking->setChecked(m_sprite.preciseCollisionChecking);
+    m_ui->checkBoxSeparateCollisionMasks->setChecked(m_sprite.separateCollisionMasks);
+
+    connect(&m_projectModel, &ProjectTreeModel::spriteNameChanged,
+            this, &SpritePropertiesDialog::spriteNameChanged);
+
+    connect(m_ui->pushButtonLoad, &QAbstractButton::clicked,
+            this, &SpritePropertiesDialog::loadSprite);
+    connect(m_ui->pushButtonSave, &QAbstractButton::clicked,
+            this, &SpritePropertiesDialog::saveSprite);
+    connect(m_ui->pushButtonEdit, &QAbstractButton::clicked,
+            this, &SpritePropertiesDialog::editSprite);
+    connect(m_ui->pushButtonCenterOrigin, &QAbstractButton::clicked,
+            this, &SpritePropertiesDialog::centerOrigin);
+    connect(m_ui->pushButtonModifyCollisionmask, &QAbstractButton::clicked,
+            this, &SpritePropertiesDialog::modifyMask);
+
+    connect(m_ui->lineEditName, &QLineEdit::textChanged,
+            this, &SpritePropertiesDialog::changed);
+    connect(m_ui->spinBoxOriginX, &QSpinBox::valueChanged,
+            this, &SpritePropertiesDialog::changed);
+    connect(m_ui->spinBoxOriginY, &QSpinBox::valueChanged,
+            this, &SpritePropertiesDialog::changed);
+    connect(m_ui->checkBoxPreciseCollisionChecking, &QCheckBox::stateChanged,
+            this, &SpritePropertiesDialog::changed);
+    connect(m_ui->checkBoxSeparateCollisionMasks, &QCheckBox::stateChanged,
+            this, &SpritePropertiesDialog::changed);
+}
+
+SpritePropertiesDialog::~SpritePropertiesDialog() = default;
+
+void SpritePropertiesDialog::accept()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    if (m_sprite.name != m_ui->lineEditName->text())
+    {
+        if (!m_projectModel.rename<Sprite>(m_sprite, m_ui->lineEditName->text()))
+        {
+            QMessageBox::critical(this, tr("Renaming Sprite failed!"), tr("Renaming Sprite failed!"));
+            return;
+        }
+    }
+
+    if (!m_projectModel.setSpritePixmaps(m_sprite, std::move(m_pixmaps)))
+    {
+        QMessageBox::critical(this, tr("Setting Sprite pixmaps failed!"), tr("Setting Sprite pixmaps failed!"));
+        return;
+    }
+
+    m_sprite.origin.x = m_ui->spinBoxOriginX->value();
+    m_sprite.origin.y = m_ui->spinBoxOriginY->value();
+    m_sprite.preciseCollisionChecking = m_ui->checkBoxPreciseCollisionChecking->isChecked();
+    m_sprite.separateCollisionMasks = m_ui->checkBoxSeparateCollisionMasks->isChecked();
+
+    QDialog::accept();
+}
+
+void SpritePropertiesDialog::reject()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    const auto result = QMessageBox::warning(
+        this,
+        tr("The Sprite has been modified."),
+        tr("Do you want to save your changes?"),
+        QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel,
+        QMessageBox::Save
+    );
+    switch (result)
+    {
+    case QMessageBox::Save:
+        accept();
+        return;
+    case QMessageBox::Discard:
+        QDialog::reject();
+        return;
+    case QMessageBox::Cancel:
+        return;
+    default:
+        qWarning() << "unexpected dialog result" << result;
+    }
+}
+
+void SpritePropertiesDialog::loadSprite()
+{
+    const auto path = QFileDialog::getOpenFileName(this, tr("Open a Sprite Image..."), {},
+                                                   QStringLiteral("%0 (*.png);;%1 (*.bmp);;%2 (*.tiff);;%3 (*.jpg *.jpeg);;%4 (*)")
+                                                       .arg(tr("PNG Files"))
+                                                       .arg(tr("BMP Files"))
+                                                       .arg(tr("TIFF Files"))
+                                                       .arg(tr("JPEG Files"))
+                                                       .arg(tr("All Files"))
+                                                   );
+    if (path.isEmpty())
+        return;
+
+    QPixmap pixmap;
+    if (!pixmap.load(path))
+    {
+        QMessageBox::warning(this, tr("Could not load sprite!"), tr("Could not load sprite!"));
+        return;
+    }
+
+    m_pixmaps = std::vector<QPixmap>{ std::move(pixmap) };
+    changed();
+    updateSpriteInfo();
+}
+
+void SpritePropertiesDialog::saveSprite()
+{
+    if (m_pixmaps.empty() || m_pixmaps.front().isNull())
+    {
+        QMessageBox::warning(this, tr("No sprites available to save!"), tr("No sprites available to save!"));
+        return;
+    }
+
+    const auto path = QFileDialog::getSaveFileName(this, tr("Save a Sprite Image..."), m_sprite.name + ".png",
+                                                   QStringLiteral("%0 (*.png);;%1 (*.bmp);;%2 (*.tiff);;%3 (*.jpg *.jpeg);;%4 (*)")
+                                                       .arg(tr("PNG Files"))
+                                                       .arg(tr("BMP Files"))
+                                                       .arg(tr("TIFF Files"))
+                                                       .arg(tr("JPEG Files"))
+                                                       .arg(tr("All Files"))
+                                                   );
+    if (path.isEmpty())
+        return;
+
+    if (!m_pixmaps.front().save(path))
+    {
+        QMessageBox::warning(this, tr("Could not save Sprite!"), tr("Could not save Sprite!"));
+        return;
+    }
+}
+
+void SpritePropertiesDialog::editSprite()
+{
+    EditSpriteDialog dialog{m_pixmaps, m_sprite.name, this};
+    if (dialog.exec() == QDialog::Accepted)
+    {
+        m_pixmaps = dialog.pixmaps();
+        changed();
+        updateSpriteInfo();
+    }
+}
+
+void SpritePropertiesDialog::centerOrigin()
+{
+    if (m_pixmaps.empty() || m_pixmaps.front().isNull())
+    {
+        qDebug() << "unexpected empty pixmaps";
+        m_ui->spinBoxOriginX->setValue(0);
+        m_ui->spinBoxOriginY->setValue(0);
+        return;
+    }
+
+    m_ui->spinBoxOriginX->setValue(m_pixmaps.front().width() / 2);
+    m_ui->spinBoxOriginY->setValue(m_pixmaps.front().height() / 2);
+}
+
+void SpritePropertiesDialog::modifyMask()
+{
+    MaskPropertiesDialog dialog{this};
+    dialog.exec();
+}
+
+void SpritePropertiesDialog::changed()
+{
+    if (!m_unsavedChanges)
+    {
+        m_unsavedChanges = true;
+        updateTitle();
+    }
+}
+
+void SpritePropertiesDialog::spriteNameChanged(const Sprite &sprite)
+{
+    if (&sprite != &m_sprite)
+        return;
+
+    {
+        QSignalBlocker blocker{m_ui->lineEditName};
+        m_ui->lineEditName->setText(sprite.name);
+    }
+
+    updateTitle();
+}
+
+void SpritePropertiesDialog::updateTitle()
+{
+    setWindowTitle(tr("Sprite Properties: %0%1")
+                       .arg(m_sprite.name)
+                       .arg(m_unsavedChanges ? tr("*") : QString{})
+                   );
+}
+
+void SpritePropertiesDialog::updateSpriteInfo()
+{
+    m_ui->labelPreview->setPixmap(m_pixmaps.empty() ? QPixmap{} : m_pixmaps.front());
+    m_ui->labelWidth->setText(tr("Width: %0").arg(m_pixmaps.empty() ? tr("n/a") : QString::number(m_pixmaps.front().width())));
+    m_ui->labelHeight->setText(tr("Height: %0").arg(m_pixmaps.empty() ? tr("n/a") : QString::number(m_pixmaps.front().height())));
+    m_ui->labelSubimages->setText(tr("Number of subimages: %0").arg(m_pixmaps.size()));
+}

src/editor/dialogs/spritepropertiesdialog.h

@@ -0,0 +1,46 @@
+#pragma once
+
+#include <QDialog>
+#include <QString>
+
+#include <memory>
+
+namespace Ui { class SpritePropertiesDialog; }
+struct Sprite;
+class ProjectTreeModel;
+
+class SpritePropertiesDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit SpritePropertiesDialog(Sprite &sprite, ProjectTreeModel &projectModel, QWidget *parent = nullptr);
+    ~SpritePropertiesDialog();
+
+    void accept() override;
+    void reject() override;
+
+private slots:
+    void loadSprite();
+    void saveSprite();
+    void editSprite();
+    void centerOrigin();
+    void modifyMask();
+
+    void changed();
+
+    void spriteNameChanged(const Sprite &sprite);
+
+private:
+    void updateTitle();
+    void updateSpriteInfo();
+
+    const std::unique_ptr<Ui::SpritePropertiesDialog> m_ui;
+
+    Sprite &m_sprite;
+    ProjectTreeModel &m_projectModel;
+
+    bool m_unsavedChanges{};
+
+    std::vector<QPixmap> m_pixmaps;
+};

src/editor/dialogs/spritepropertiesdialog.ui

@@ -0,0 +1,378 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>SpritePropertiesDialog</class>
+ <widget class="QDialog" name="SpritePropertiesDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>560</width>
+    <height>344</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Sprite Properties</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../resources.qrc">
+    <normaloff>:/qtgameengine/icons/sprite-file.png</normaloff>:/qtgameengine/icons/sprite-file.png</iconset>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout" stretch="0,0,1">
+   <item>
+    <layout class="QVBoxLayout" name="verticalLayout">
+     <item>
+      <layout class="QFormLayout" name="formLayout">
+       <item row="0" column="0">
+        <widget class="QLabel" name="labelName">
+         <property name="text">
+          <string>&amp;Name:</string>
+         </property>
+         <property name="buddy">
+          <cstring>lineEditName</cstring>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="1">
+        <widget class="QLineEdit" name="lineEditName">
+         <property name="toolTip">
+          <string>The name of the sprite</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_3">
+       <item>
+        <spacer name="horizontalSpacer">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>40</width>
+           <height>20</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item>
+        <layout class="QVBoxLayout" name="verticalLayout_5">
+         <item>
+          <widget class="QPushButton" name="pushButtonLoad">
+           <property name="toolTip">
+            <string>Load the sprite from a file</string>
+           </property>
+           <property name="text">
+            <string>&amp;Load Sprite</string>
+           </property>
+           <property name="icon">
+            <iconset resource="../resources.qrc">
+             <normaloff>:/qtgameengine/icons/open.png</normaloff>:/qtgameengine/icons/open.png</iconset>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QPushButton" name="pushButtonSave">
+           <property name="toolTip">
+            <string>Save the sprite to a file</string>
+           </property>
+           <property name="text">
+            <string>&amp;Save Sprite</string>
+           </property>
+           <property name="icon">
+            <iconset resource="../resources.qrc">
+             <normaloff>:/qtgameengine/icons/save.png</normaloff>:/qtgameengine/icons/save.png</iconset>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QPushButton" name="pushButtonEdit">
+           <property name="toolTip">
+            <string>Edit the sprite</string>
+           </property>
+           <property name="text">
+            <string>&amp;Edit Sprite</string>
+           </property>
+           <property name="icon">
+            <iconset resource="../resources.qrc">
+             <normaloff>:/qtgameengine/icons/edit.png</normaloff>:/qtgameengine/icons/edit.png</iconset>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <spacer name="horizontalSpacer_2">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>40</width>
+           <height>20</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_4">
+       <item>
+        <widget class="QLabel" name="labelHeight">
+         <property name="text">
+          <string>Height:</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLabel" name="labelWidth">
+         <property name="text">
+          <string>Width:</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <widget class="QLabel" name="labelSubimages">
+       <property name="text">
+        <string>Number of subimages:</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QGroupBox" name="groupBoxOrigin">
+       <property name="title">
+        <string>Origin</string>
+       </property>
+       <layout class="QVBoxLayout" name="verticalLayout_4">
+        <item>
+         <layout class="QHBoxLayout" name="horizontalLayout_2">
+          <item>
+           <widget class="QLabel" name="labelOriginX">
+            <property name="text">
+             <string>&amp;X:</string>
+            </property>
+            <property name="alignment">
+             <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+            </property>
+            <property name="buddy">
+             <cstring>spinBoxOriginX</cstring>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QSpinBox" name="spinBoxOriginX">
+            <property name="toolTip">
+             <string>The x-coordinate in the sprite that is used for the origin</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QLabel" name="labelOriginY">
+            <property name="text">
+             <string>&amp;Y:</string>
+            </property>
+            <property name="alignment">
+             <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+            </property>
+            <property name="buddy">
+             <cstring>spinBoxOriginY</cstring>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QSpinBox" name="spinBoxOriginY">
+            <property name="toolTip">
+             <string>The y-coordinate in the sprite that is used for the origin</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </item>
+        <item>
+         <layout class="QHBoxLayout" name="horizontalLayout_6">
+          <item>
+           <spacer name="horizontalSpacer_5">
+            <property name="orientation">
+             <enum>Qt::Horizontal</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>40</width>
+              <height>20</height>
+             </size>
+            </property>
+           </spacer>
+          </item>
+          <item>
+           <widget class="QPushButton" name="pushButtonCenterOrigin">
+            <property name="toolTip">
+             <string>Put the origin in the center of the image</string>
+            </property>
+            <property name="text">
+             <string>&amp;Center</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <spacer name="horizontalSpacer_6">
+            <property name="orientation">
+             <enum>Qt::Horizontal</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>40</width>
+              <height>20</height>
+             </size>
+            </property>
+           </spacer>
+          </item>
+         </layout>
+        </item>
+       </layout>
+      </widget>
+     </item>
+     <item>
+      <spacer name="verticalSpacer_2">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>40</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QDialogButtonBox" name="buttonBox">
+       <property name="standardButtons">
+        <set>QDialogButtonBox::Ok</set>
+       </property>
+       <property name="centerButtons">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <layout class="QVBoxLayout" name="verticalLayout_2">
+     <item>
+      <widget class="QGroupBox" name="groupBoxCollisionChecking">
+       <property name="title">
+        <string>Collision Checking</string>
+       </property>
+       <layout class="QVBoxLayout" name="verticalLayout_3">
+        <item>
+         <widget class="QCheckBox" name="checkBoxPreciseCollisionChecking">
+          <property name="toolTip">
+           <string>Perform pixel precise colliion checking</string>
+          </property>
+          <property name="text">
+           <string>&amp;Precise collision checking</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QCheckBox" name="checkBoxSeparateCollisionMasks">
+          <property name="toolTip">
+           <string>Have separate collision masks for the subimages</string>
+          </property>
+          <property name="text">
+           <string>Separa&amp;te Collision Masks</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QPushButton" name="pushButtonModifyCollisionmask">
+          <property name="toolTip">
+           <string>Modify additional options for the collision mask</string>
+          </property>
+          <property name="text">
+           <string>&amp;Modify Mask</string>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+     </item>
+     <item>
+      <spacer name="verticalSpacer">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>40</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QScrollArea" name="scrollArea">
+     <property name="widgetResizable">
+      <bool>true</bool>
+     </property>
+     <widget class="QLabel" name="labelPreview">
+      <property name="geometry">
+       <rect>
+        <x>0</x>
+        <y>0</y>
+        <width>124</width>
+        <height>324</height>
+       </rect>
+      </property>
+      <property name="alignment">
+       <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignTop</set>
+      </property>
+     </widget>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../resources.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>SpritePropertiesDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>108</x>
+     <y>321</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>279</x>
+     <y>171</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>SpritePropertiesDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>108</x>
+     <y>321</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>279</x>
+     <y>171</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/timelinepropertiesdialog.cpp

@@ -0,0 +1,293 @@
+#include "timelinepropertiesdialog.h"
+#include "ui_timelinepropertiesdialog.h"
+
+#include <QDebug>
+#include <QMessageBox>
+#include <QInputDialog>
+#include <QMenu>
+
+#include <limits>
+
+#include "models/projecttreemodel.h"
+#include "models/timelinemomentsmodel.h"
+#include "dialogs/deletemomentsdialog.h"
+
+TimeLinePropertiesDialog::TimeLinePropertiesDialog(TimeLine &timeLine, ProjectTreeModel &projectModel, QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::TimeLinePropertiesDialog>()},
+    m_timeLine{timeLine},
+    m_projectModel{projectModel},
+    m_moments{timeLine.moments},
+    m_momentsModel{std::make_unique<TimelineMomentsModel>(m_moments, this)}
+{
+    m_ui->setupUi(this);
+
+    updateTitle();
+
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Ok))
+        button->setIcon(QIcon{":/qtgameengine/icons/ok.png"});
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Cancel))
+        button->setIcon(QIcon{":/qtgameengine/icons/delete.png"});
+
+    m_ui->lineEditName->setText(m_timeLine.name);
+
+    m_ui->listViewMoments->setModel(m_momentsModel.get());
+
+    connect(&m_projectModel, &ProjectTreeModel::timeLineNameChanged,
+            this, &TimeLinePropertiesDialog::timeLineNameChanged);
+
+    connect(m_momentsModel.get(), &QAbstractItemModel::modelReset,
+            this, &TimeLinePropertiesDialog::changed);
+    connect(m_momentsModel.get(), &QAbstractItemModel::rowsInserted,
+            this, &TimeLinePropertiesDialog::changed);
+    connect(m_momentsModel.get(), &QAbstractItemModel::dataChanged,
+            this, &TimeLinePropertiesDialog::changed);
+    connect(m_momentsModel.get(), &QAbstractItemModel::rowsRemoved,
+            this, &TimeLinePropertiesDialog::changed);
+
+    connect(m_ui->lineEditName, &QLineEdit::textChanged,
+            this, &TimeLinePropertiesDialog::changed);
+
+    connect(m_ui->pushButtonAdd, &QAbstractButton::clicked,
+            this, &TimeLinePropertiesDialog::addMoment);
+    connect(m_ui->pushButtonChange, &QAbstractButton::clicked,
+            this, &TimeLinePropertiesDialog::changeMoment);
+    connect(m_ui->pushButtonDelete, &QAbstractButton::clicked,
+            this, &TimeLinePropertiesDialog::deleteMoments);
+    connect(m_ui->pushButtonClear, &QAbstractButton::clicked,
+            this, &TimeLinePropertiesDialog::clearMoments);
+    connect(m_ui->pushButtonShift, &QAbstractButton::clicked,
+            this, &TimeLinePropertiesDialog::shiftMoments);
+    connect(m_ui->pushButtonDuplicate, &QAbstractButton::clicked,
+            this, &TimeLinePropertiesDialog::duplicateMoments);
+    connect(m_ui->pushButtonSpread, &QAbstractButton::clicked,
+            this, &TimeLinePropertiesDialog::spreadMoments);
+    connect(m_ui->pushButtonMerge, &QAbstractButton::clicked,
+            this, &TimeLinePropertiesDialog::mergeMoments);
+    connect(m_ui->pushButtonShowInformation, &QAbstractButton::clicked,
+            this, &TimeLinePropertiesDialog::showInformation);
+
+    connect(m_ui->listViewMoments->selectionModel(), &QItemSelectionModel::currentChanged,
+            this, &TimeLinePropertiesDialog::currentMomentChanged);
+    connect(m_momentsModel.get(), &QAbstractItemModel::modelAboutToBeReset,
+            m_ui->listViewMoments, [listView=m_ui->listViewMoments](){
+        listView->setCurrentIndex(QModelIndex{});
+    });
+    connect(m_ui->listViewMoments, &QListView::customContextMenuRequested,
+            this, &TimeLinePropertiesDialog::momentsContextMenuRequested);
+
+    connect(m_ui->actionsWidget, &ActionsContainerWidget::changed,
+            this, &TimeLinePropertiesDialog::changed);
+}
+
+TimeLinePropertiesDialog::~TimeLinePropertiesDialog() = default;
+
+void TimeLinePropertiesDialog::accept()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    if (m_timeLine.name != m_ui->lineEditName->text())
+    {
+        if (!m_projectModel.rename<TimeLine>(m_timeLine, m_ui->lineEditName->text()))
+        {
+            QMessageBox::critical(this, tr("Renaming Time Line failed!"), tr("Renaming Time Line failed!"));
+            return;
+        }
+    }
+
+    m_timeLine.moments = m_moments;
+
+    QDialog::accept();
+}
+
+void TimeLinePropertiesDialog::reject()
+{
+    if (!m_unsavedChanges)
+    {
+        QDialog::reject();
+        return;
+    }
+
+    const auto result = QMessageBox::warning(
+        this,
+        tr("The Time Line has been modified."),
+        tr("Do you want to save your changes?"),
+        QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel,
+        QMessageBox::Save
+    );
+    switch (result)
+    {
+    case QMessageBox::Save:
+        accept();
+        return;
+    case QMessageBox::Discard:
+        QDialog::reject();
+        return;
+    case QMessageBox::Cancel:
+        return;
+    default:
+        qWarning() << "unexpected dialog result" << result;
+    }
+}
+
+void TimeLinePropertiesDialog::changed()
+{
+    if (!m_unsavedChanges)
+    {
+        m_unsavedChanges = true;
+        updateTitle();
+    }
+}
+
+void TimeLinePropertiesDialog::timeLineNameChanged(const TimeLine &timeLine)
+{
+    if (&timeLine != &m_timeLine)
+        return;
+
+    {
+        QSignalBlocker blocker{m_ui->lineEditName};
+        m_ui->lineEditName->setText(timeLine.name);
+    }
+
+    updateTitle();
+}
+
+void TimeLinePropertiesDialog::addMoment()
+{
+    TimeLine::moment_key_t newMoment{};
+    for (const auto &moment : m_moments)
+        if (moment.first >= newMoment)
+            newMoment = moment.first + 1;
+
+    bool ok;
+    const auto moment = QInputDialog::getInt(this, tr("Adding a Moment"), tr("Indicate the moment:"), newMoment, 0, std::numeric_limits<TimeLine::moment_key_t>::max(), 1, &ok);
+    if (!ok)
+        return;
+
+    if (!m_momentsModel->addMoment(moment))
+        QMessageBox::warning(this, tr("Could not add Moment!"), tr("Could not add Moment!"));
+}
+
+void TimeLinePropertiesDialog::changeMoment()
+{
+    const auto index = m_ui->listViewMoments->currentIndex();
+    if (!index.isValid())
+        return;
+
+    const auto moment = m_momentsModel->getMoment(index);
+    if (!moment)
+        return;
+
+    bool ok;
+    const auto newMoment = QInputDialog::getInt(this, tr("Changing a Moment"), tr("Indicate the moment:"), moment->first, 0, std::numeric_limits<TimeLine::moment_key_t>::max(), 1, &ok);
+    if (!ok)
+        return;
+
+    if (!m_momentsModel->changeMoment(moment->first, newMoment))
+        QMessageBox::warning(this, tr("Could not change Moment!"), tr("Could not change Moment!"));
+}
+
+void TimeLinePropertiesDialog::deleteMoments()
+{
+    if (m_moments.empty())
+        return;
+
+    std::optional<TimeLine::moment_key_t> momentKey;
+
+    if (const auto index = m_ui->listViewMoments->currentIndex(); index.isValid())
+        if (const auto moment = m_momentsModel->getMoment(index); moment)
+            momentKey = moment->first;
+
+    DeleteMomentsDialog dialog = momentKey ? DeleteMomentsDialog{*momentKey, *momentKey, this} : DeleteMomentsDialog{this};
+    if (dialog.exec() == QDialog::Accepted)
+    {
+        if (dialog.fromMoment() > dialog.tillMoment())
+        {
+            QMessageBox::warning(this, tr("Invalid input!"), tr("Invalid input!") + "\n\n" + tr("From moment cannot be greater than Till moment!"));
+            return;
+        }
+
+        if (!m_momentsModel->removeRows(dialog.fromMoment(), dialog.tillMoment() - dialog.fromMoment() + 1))
+            QMessageBox::warning(this, tr("Could not remove Moments!"), tr("Could not remove Moments!"));
+    }
+}
+
+void TimeLinePropertiesDialog::clearMoments()
+{
+    if (m_moments.empty())
+        return;
+    if (QMessageBox::question(this, tr("Confirm"), tr("Are you sure, that you really want to remove all Moments?")) != QMessageBox::Yes)
+        return;
+    if (!m_momentsModel->clearMoments())
+        QMessageBox::warning(this, tr("Could not clear Moments!"), tr("Could not clear Moments!"));
+}
+
+void TimeLinePropertiesDialog::shiftMoments()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void TimeLinePropertiesDialog::duplicateMoments()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void TimeLinePropertiesDialog::spreadMoments()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void TimeLinePropertiesDialog::mergeMoments()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void TimeLinePropertiesDialog::showInformation()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void TimeLinePropertiesDialog::currentMomentChanged(const QModelIndex &index)
+{
+    qDebug() << index.isValid() << index.row();
+
+    if (index.isValid())
+    {
+        if (auto moment = m_momentsModel->getMoment(index))
+            m_ui->actionsWidget->setActionsContainer(&moment->second);
+        else
+            goto none;
+    }
+    else
+    {
+    none:
+        m_ui->actionsWidget->setActionsContainer(nullptr);
+    }
+}
+
+void TimeLinePropertiesDialog::momentsContextMenuRequested(const QPoint &pos)
+{
+    const auto index = m_ui->listViewMoments->indexAt(pos);
+    auto moment = index.isValid() ? m_momentsModel->getMoment(index) : nullptr;
+
+    QMenu menu{this};
+    menu.addAction(tr("&Add Moment"), this, &TimeLinePropertiesDialog::addMoment);
+    menu.addAction(tr("&Change Moment"), this, &TimeLinePropertiesDialog::changeMoment)->setEnabled(moment);
+    menu.addAction(tr("&Delete Moment"), this, &TimeLinePropertiesDialog::deleteMoments)->setEnabled(moment);
+    menu.addSeparator();
+    menu.addAction(tr("&Shift Moments"), this, &TimeLinePropertiesDialog::shiftMoments)->setEnabled(moment);
+    menu.addAction(tr("&Merge Moments"), this, &TimeLinePropertiesDialog::mergeMoments)->setEnabled(moment);
+    menu.exec(m_ui->listViewMoments->viewport()->mapToGlobal(pos));
+}
+
+void TimeLinePropertiesDialog::updateTitle()
+{
+    setWindowTitle(tr("Time Line Properties: %0%1")
+                       .arg(m_timeLine.name)
+                       .arg(m_unsavedChanges ? tr("*") : QString{})
+                   );
+}

src/editor/dialogs/timelinepropertiesdialog.h

@@ -0,0 +1,55 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+
+#include "projectcontainer.h"
+
+namespace Ui { class TimeLinePropertiesDialog; }
+class ProjectTreeModel;
+class TimelineMomentsModel;
+
+class TimeLinePropertiesDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit TimeLinePropertiesDialog(TimeLine &timeLine, ProjectTreeModel &projectModel, QWidget *parent = nullptr);
+    ~TimeLinePropertiesDialog();
+
+    void accept() override;
+    void reject() override;
+
+private slots:
+    void changed();
+
+    void timeLineNameChanged(const TimeLine &timeLine);
+
+    void addMoment();
+    void changeMoment();
+    void deleteMoments();
+    void clearMoments();
+    void shiftMoments();
+    void duplicateMoments();
+    void spreadMoments();
+    void mergeMoments();
+    void showInformation();
+
+    void currentMomentChanged(const QModelIndex &index);
+    void momentsContextMenuRequested(const QPoint &pos);
+
+private:
+    void updateTitle();
+
+    const std::unique_ptr<Ui::TimeLinePropertiesDialog> m_ui;
+
+    TimeLine &m_timeLine;
+    ProjectTreeModel &m_projectModel;
+
+    TimeLine::moments_container_t m_moments;
+
+    const std::unique_ptr<TimelineMomentsModel> m_momentsModel;
+
+    bool m_unsavedChanges{};
+};

src/editor/dialogs/timelinepropertiesdialog.ui

@@ -0,0 +1,317 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>TimeLinePropertiesDialog</class>
+ <widget class="QDialog" name="TimeLinePropertiesDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>838</width>
+    <height>533</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Time Line Properties</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../resources.qrc">
+    <normaloff>:/qtgameengine/icons/timeline-file.png</normaloff>:/qtgameengine/icons/timeline-file.png</iconset>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout" stretch="0,0,1">
+   <item>
+    <layout class="QVBoxLayout" name="verticalLayout">
+     <item>
+      <widget class="QLabel" name="labelName">
+       <property name="text">
+        <string>&amp;Name:</string>
+       </property>
+       <property name="buddy">
+        <cstring>lineEditName</cstring>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QLineEdit" name="lineEditName">
+       <property name="toolTip">
+        <string>The name of the time line</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="verticalSpacer">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>40</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <layout class="QGridLayout" name="gridLayout">
+       <item row="0" column="0">
+        <widget class="QPushButton" name="pushButtonAdd">
+         <property name="toolTip">
+          <string>Click here to add another moment</string>
+         </property>
+         <property name="text">
+          <string>&amp;Add</string>
+         </property>
+         <property name="icon">
+          <iconset resource="../resources.qrc">
+           <normaloff>:/qtgameengine/icons/add.png</normaloff>:/qtgameengine/icons/add.png</iconset>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="1">
+        <widget class="QPushButton" name="pushButtonChange">
+         <property name="toolTip">
+          <string>Change the moment</string>
+         </property>
+         <property name="text">
+          <string>&amp;Change</string>
+         </property>
+         <property name="icon">
+          <iconset resource="../resources.qrc">
+           <normaloff>:/qtgameengine/icons/replace.png</normaloff>:/qtgameengine/icons/replace.png</iconset>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="0">
+        <widget class="QPushButton" name="pushButtonDelete">
+         <property name="toolTip">
+          <string>Delete moments</string>
+         </property>
+         <property name="text">
+          <string>&amp;Delete</string>
+         </property>
+         <property name="icon">
+          <iconset resource="../resources.qrc">
+           <normaloff>:/qtgameengine/icons/delete.png</normaloff>:/qtgameengine/icons/delete.png</iconset>
+         </property>
+        </widget>
+       </item>
+       <item row="3" column="0">
+        <widget class="QPushButton" name="pushButtonShift">
+         <property name="toolTip">
+          <string>Shift moments by an amount</string>
+         </property>
+         <property name="text">
+          <string>&amp;Shift</string>
+         </property>
+         <property name="icon">
+          <iconset resource="../resources.qrc">
+           <normaloff>:/qtgameengine/icons/arrow-right.png</normaloff>:/qtgameengine/icons/arrow-right.png</iconset>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="1">
+        <widget class="QPushButton" name="pushButtonClear">
+         <property name="toolTip">
+          <string>Clear all moments</string>
+         </property>
+         <property name="text">
+          <string>C&amp;lear</string>
+         </property>
+         <property name="icon">
+          <iconset resource="../resources.qrc">
+           <normaloff>:/qtgameengine/icons/new.png</normaloff>:/qtgameengine/icons/new.png</iconset>
+         </property>
+        </widget>
+       </item>
+       <item row="3" column="1">
+        <widget class="QPushButton" name="pushButtonDuplicate">
+         <property name="toolTip">
+          <string>Duplicate moments</string>
+         </property>
+         <property name="text">
+          <string>D&amp;uplicate</string>
+         </property>
+         <property name="icon">
+          <iconset resource="../resources.qrc">
+           <normaloff>:/qtgameengine/icons/copy.png</normaloff>:/qtgameengine/icons/copy.png</iconset>
+         </property>
+        </widget>
+       </item>
+       <item row="2" column="0">
+        <spacer name="verticalSpacer_2">
+         <property name="orientation">
+          <enum>Qt::Vertical</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>20</width>
+           <height>40</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item row="4" column="0">
+        <widget class="QPushButton" name="pushButtonSpread">
+         <property name="toolTip">
+          <string>Spread out the moments adding additional time between them</string>
+         </property>
+         <property name="text">
+          <string>S&amp;pread</string>
+         </property>
+         <property name="icon">
+          <iconset resource="../resources.qrc">
+           <normaloff>:/qtgameengine/icons/scale.png</normaloff>:/qtgameengine/icons/scale.png</iconset>
+         </property>
+        </widget>
+       </item>
+       <item row="4" column="1">
+        <widget class="QPushButton" name="pushButtonMerge">
+         <property name="toolTip">
+          <string>Merge a number of moments into one</string>
+         </property>
+         <property name="text">
+          <string>&amp;Merge</string>
+         </property>
+         <property name="icon">
+          <iconset resource="../resources.qrc">
+           <normaloff>:/qtgameengine/icons/merge.png</normaloff>:/qtgameengine/icons/merge.png</iconset>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <spacer name="verticalSpacer_3">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>40</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButtonShowInformation">
+       <property name="toolTip">
+        <string>Show information about the time line</string>
+       </property>
+       <property name="text">
+        <string>Show &amp;Information</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../resources.qrc">
+         <normaloff>:/qtgameengine/icons/info.png</normaloff>:/qtgameengine/icons/info.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="verticalSpacer_4">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>40</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QDialogButtonBox" name="buttonBox">
+       <property name="standardButtons">
+        <set>QDialogButtonBox::Ok</set>
+       </property>
+       <property name="centerButtons">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <layout class="QVBoxLayout" name="verticalLayout_2">
+     <item>
+      <widget class="QLabel" name="labelMoments">
+       <property name="text">
+        <string>Moments:</string>
+       </property>
+       <property name="buddy">
+        <cstring>listViewMoments</cstring>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QListView" name="listViewMoments">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Ignored" vsizetype="Expanding">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="minimumSize">
+        <size>
+         <width>150</width>
+         <height>0</height>
+        </size>
+       </property>
+       <property name="contextMenuPolicy">
+        <enum>Qt::CustomContextMenu</enum>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="ActionsContainerWidget" name="actionsWidget" native="true"/>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>ActionsContainerWidget</class>
+   <extends>QWidget</extends>
+   <header>widgets/actionscontainerwidget.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
+ <resources>
+  <include location="../resources.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>TimeLinePropertiesDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>150</x>
+     <y>277</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>256</x>
+     <y>239</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>TimeLinePropertiesDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>150</x>
+     <y>277</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>256</x>
+     <y>239</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/triggerconditiondialog.cpp

@@ -0,0 +1,12 @@
+#include "triggerconditiondialog.h"
+
+TriggerConditionDialog::TriggerConditionDialog(QWidget *parent) :
+    CodeEditorDialog{tr("Trigger condition"), parent}
+{
+#ifdef Q_OS_LINUX
+    setWindowFlags((windowFlags() & ~Qt::Dialog) | Qt::Window);
+#endif
+    setWindowFlag(Qt::WindowMinimizeButtonHint);
+    setWindowFlag(Qt::WindowMaximizeButtonHint);
+    setWindowFlag(Qt::WindowCloseButtonHint);
+}

src/editor/dialogs/triggerconditiondialog.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include "codeeditordialog.h"
+
+class TriggerConditionDialog : public CodeEditorDialog
+{
+    Q_OBJECT
+
+public:
+    explicit TriggerConditionDialog(QWidget *parent = nullptr);
+};

src/editor/dialogs/triggersdialog.cpp

@@ -0,0 +1,76 @@
+#include "triggersdialog.h"
+#include "ui_triggersdialog.h"
+
+#include <QDebug>
+#include <QMessageBox>
+
+#include "projectcontainer.h"
+#include "models/triggersmodel.h"
+#include "triggerconditiondialog.h"
+
+TriggersDialog::TriggersDialog(ProjectContainer &project, QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::TriggersDialog>()},
+    m_project{project},
+    m_model{std::make_unique<TriggersModel>(project, this)}
+{
+    m_ui->setupUi(this);
+
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Ok))
+        button->setIcon(QIcon{":/qtgameengine/icons/ok.png"});
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Cancel))
+        button->setIcon(QIcon{":/qtgameengine/icons/delete.png"});
+
+    m_ui->listView->setModel(m_model.get());
+
+    connect(m_ui->pushButtonAdd, &QAbstractButton::clicked,
+            this, &TriggersDialog::addTrigger);
+    connect(m_ui->pushButtonDelete, &QAbstractButton::clicked,
+            this, &TriggersDialog::deleteTrigger);
+    connect(m_ui->pushButtonLoad, &QAbstractButton::clicked,
+            this, &TriggersDialog::loadTrigger);
+    connect(m_ui->pushButtonSave, &QAbstractButton::clicked,
+            this, &TriggersDialog::saveTrigger);
+    connect(m_ui->pushButtonClear, &QAbstractButton::clicked,
+            this, &TriggersDialog::clearTriggers);
+    connect(m_ui->pushButtonUseCodeEditor, &QAbstractButton::clicked,
+            this, &TriggersDialog::openCodeEditor);
+}
+
+void TriggersDialog::addTrigger()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void TriggersDialog::deleteTrigger()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void TriggersDialog::loadTrigger()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void TriggersDialog::saveTrigger()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void TriggersDialog::clearTriggers()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+TriggersDialog::~TriggersDialog() = default;
+
+void TriggersDialog::openCodeEditor()
+{
+    TriggerConditionDialog dialog{this};
+    dialog.setScript(m_ui->plainTextEdit->toPlainText());
+    if (dialog.exec() == QDialog::Accepted)
+    {
+        m_ui->plainTextEdit->setPlainText(dialog.script());
+        // changed();
+    }
+}

src/editor/dialogs/triggersdialog.h

@@ -0,0 +1,34 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+
+namespace Ui { class TriggersDialog; }
+struct ProjectContainer;
+class TriggersModel;
+
+class TriggersDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit TriggersDialog(ProjectContainer &project, QWidget *parent = nullptr);
+    ~TriggersDialog();
+
+private slots:
+    void addTrigger();
+    void deleteTrigger();
+    void loadTrigger();
+    void saveTrigger();
+    void clearTriggers();
+
+    void openCodeEditor();
+
+private:
+    const std::unique_ptr<Ui::TriggersDialog> m_ui;
+
+    ProjectContainer &m_project;
+
+    const std::unique_ptr<TriggersModel> m_model;
+};

src/editor/dialogs/triggersdialog.ui

@@ -0,0 +1,285 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>TriggersDialog</class>
+ <widget class="QDialog" name="TriggersDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>622</width>
+    <height>515</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Triggers</string>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout" stretch="0,1">
+   <item>
+    <layout class="QVBoxLayout" name="verticalLayout">
+     <item>
+      <widget class="QListView" name="listView">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Ignored" vsizetype="Expanding">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="toolTip">
+        <string>List of all defined triggers. Click on a trigger to change it</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <layout class="QGridLayout" name="gridLayout">
+       <item row="1" column="0">
+        <widget class="QPushButton" name="pushButtonLoad">
+         <property name="toolTip">
+          <string>Load the collection of triggers from a file.</string>
+         </property>
+         <property name="text">
+          <string>&amp;Load</string>
+         </property>
+         <property name="icon">
+          <iconset resource="../resources.qrc">
+           <normaloff>:/qtgameengine/icons/open.png</normaloff>:/qtgameengine/icons/open.png</iconset>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="1">
+        <widget class="QPushButton" name="pushButtonDelete">
+         <property name="toolTip">
+          <string>Delete the selected trigger. Make sure no object uses it!</string>
+         </property>
+         <property name="text">
+          <string>&amp;Delete</string>
+         </property>
+         <property name="icon">
+          <iconset resource="../resources.qrc">
+           <normaloff>:/qtgameengine/icons/delete.png</normaloff>:/qtgameengine/icons/delete.png</iconset>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="0">
+        <widget class="QPushButton" name="pushButtonAdd">
+         <property name="toolTip">
+          <string>Add a trigger to the list</string>
+         </property>
+         <property name="text">
+          <string>&amp;Add</string>
+         </property>
+         <property name="icon">
+          <iconset resource="../resources.qrc">
+           <normaloff>:/qtgameengine/icons/add.png</normaloff>:/qtgameengine/icons/add.png</iconset>
+         </property>
+        </widget>
+       </item>
+       <item row="2" column="0">
+        <widget class="QPushButton" name="pushButtonClear">
+         <property name="toolTip">
+          <string>Clear the complete list of triggers</string>
+         </property>
+         <property name="text">
+          <string>&amp;Clear</string>
+         </property>
+         <property name="icon">
+          <iconset resource="../resources.qrc">
+           <normaloff>:/qtgameengine/icons/new.png</normaloff>:/qtgameengine/icons/new.png</iconset>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="1">
+        <widget class="QPushButton" name="pushButtonSave">
+         <property name="toolTip">
+          <string>Save the collection of triggers to a file</string>
+         </property>
+         <property name="text">
+          <string>&amp;Save</string>
+         </property>
+         <property name="icon">
+          <iconset resource="../resources.qrc">
+           <normaloff>:/qtgameengine/icons/save.png</normaloff>:/qtgameengine/icons/save.png</iconset>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <widget class="QDialogButtonBox" name="buttonBox">
+       <property name="standardButtons">
+        <set>QDialogButtonBox::Ok</set>
+       </property>
+       <property name="centerButtons">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="groupBox">
+     <property name="enabled">
+      <bool>true</bool>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout_2">
+      <item>
+       <widget class="QLabel" name="labelName">
+        <property name="text">
+         <string>Name:</string>
+        </property>
+        <property name="buddy">
+         <cstring>lineEditName</cstring>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QLineEdit" name="lineEditName">
+        <property name="toolTip">
+         <string>Type here a name for the trigger</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QLabel" name="labelCondition">
+        <property name="text">
+         <string>Condition:</string>
+        </property>
+        <property name="buddy">
+         <cstring>plainTextEdit</cstring>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPlainTextEdit" name="plainTextEdit">
+        <property name="toolTip">
+         <string>Type here the condition for the trigger</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout_2">
+        <item>
+         <spacer name="horizontalSpacer">
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+          <property name="sizeHint" stdset="0">
+           <size>
+            <width>40</width>
+            <height>20</height>
+           </size>
+          </property>
+         </spacer>
+        </item>
+        <item>
+         <widget class="QPushButton" name="pushButtonUseCodeEditor">
+          <property name="toolTip">
+           <string>Use the code editor to edit the condition</string>
+          </property>
+          <property name="text">
+           <string>&amp;Use code editor</string>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+      <item>
+       <widget class="QLabel" name="labelMomentOfChecking">
+        <property name="text">
+         <string>Moment of checking:</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout_3">
+        <item>
+         <widget class="QRadioButton" name="radioButtonBegin">
+          <property name="toolTip">
+           <string>Event will be checked at the beginning of each step</string>
+          </property>
+          <property name="text">
+           <string>Begin of step</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QRadioButton" name="radioButtonMiddle">
+          <property name="toolTip">
+           <string>Event will be checked in the middle of each step (just before the step event)</string>
+          </property>
+          <property name="text">
+           <string>Middle of step</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QRadioButton" name="radioButtonEnd">
+          <property name="toolTip">
+           <string>Event will be checked at the end of each step</string>
+          </property>
+          <property name="text">
+           <string>End of step</string>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+      <item>
+       <widget class="QLabel" name="labelConstantName">
+        <property name="text">
+         <string>Constant name:</string>
+        </property>
+        <property name="buddy">
+         <cstring>lineEditConstantName</cstring>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QLineEdit" name="lineEditConstantName">
+        <property name="toolTip">
+         <string>When required you can provide a constant name that you can use in code to call the event</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../resources.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>TriggersDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>93</x>
+     <y>492</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>310</x>
+     <y>257</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>TriggersDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>93</x>
+     <y>492</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>310</x>
+     <y>257</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/editor/dialogs/userdefinedconstantsdialog.cpp

@@ -0,0 +1,90 @@
+#include "userdefinedconstantsdialog.h"
+#include "ui_userdefinedconstantsdialog.h"
+
+#include <QDebug>
+#include <QMessageBox>
+
+#include "projectcontainer.h"
+#include "models/constantsmodel.h"
+
+UserDefinedConstantsDialog::UserDefinedConstantsDialog(ProjectContainer &project, QWidget *parent) :
+    QDialog{parent},
+    m_ui{std::make_unique<Ui::UserDefinedConstantsDialog>()},
+    m_project{project},
+    m_model{std::make_unique<ConstantsModel>(m_project, this)}
+{
+    m_ui->setupUi(this);
+
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Ok))
+        button->setIcon(QIcon{":/qtgameengine/icons/ok.png"});
+    if (auto button = m_ui->buttonBox->button(QDialogButtonBox::Cancel))
+        button->setIcon(QIcon{":/qtgameengine/icons/delete.png"});
+
+    m_ui->treeView->setModel(m_model.get());
+
+    connect(m_ui->pushButtonInsert, &QAbstractButton::clicked,
+            this, &UserDefinedConstantsDialog::insertConstant);
+    connect(m_ui->pushButtonAdd, &QAbstractButton::clicked,
+            this, &UserDefinedConstantsDialog::addConstant);
+    connect(m_ui->pushButtonDelete, &QAbstractButton::clicked,
+            this, &UserDefinedConstantsDialog::deleteConstant);
+    connect(m_ui->pushButtonClear, &QAbstractButton::clicked,
+            this, &UserDefinedConstantsDialog::clearConstants);
+    connect(m_ui->pushButtonUp, &QAbstractButton::clicked,
+            this, &UserDefinedConstantsDialog::moveConstantUp);
+    connect(m_ui->pushButtonDown, &QAbstractButton::clicked,
+            this, &UserDefinedConstantsDialog::moveConstantDown);
+    connect(m_ui->pushButtonSort, &QAbstractButton::clicked,
+            this, &UserDefinedConstantsDialog::sortConstants);
+    connect(m_ui->pushButtonLoad, &QAbstractButton::clicked,
+            this, &UserDefinedConstantsDialog::loadConstant);
+    connect(m_ui->pushButtonSave, &QAbstractButton::clicked,
+            this, &UserDefinedConstantsDialog::saveConstant);
+}
+
+UserDefinedConstantsDialog::~UserDefinedConstantsDialog() = default;
+
+void UserDefinedConstantsDialog::insertConstant()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void UserDefinedConstantsDialog::addConstant()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void UserDefinedConstantsDialog::deleteConstant()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void UserDefinedConstantsDialog::clearConstants()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void UserDefinedConstantsDialog::moveConstantUp()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void UserDefinedConstantsDialog::moveConstantDown()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void UserDefinedConstantsDialog::sortConstants()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void UserDefinedConstantsDialog::loadConstant()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
+
+void UserDefinedConstantsDialog::saveConstant()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}

src/editor/dialogs/userdefinedconstantsdialog.h

@@ -0,0 +1,36 @@
+#pragma once
+
+#include <QDialog>
+
+#include <memory>
+
+namespace Ui { class UserDefinedConstantsDialog; }
+struct ProjectContainer;
+class ConstantsModel;
+
+class UserDefinedConstantsDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit UserDefinedConstantsDialog(ProjectContainer &project, QWidget *parent = nullptr);
+    ~UserDefinedConstantsDialog();
+
+private slots:
+    void insertConstant();
+    void addConstant();
+    void deleteConstant();
+    void clearConstants();
+    void moveConstantUp();
+    void moveConstantDown();
+    void sortConstants();
+    void loadConstant();
+    void saveConstant();
+
+private:
+    const std::unique_ptr<Ui::UserDefinedConstantsDialog> m_ui;
+
+    ProjectContainer &m_project;
+
+    const std::unique_ptr<ConstantsModel> m_model;
+};

src/editor/dialogs/userdefinedconstantsdialog.ui

@@ -0,0 +1,213 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UserDefinedConstantsDialog</class>
+ <widget class="QDialog" name="UserDefinedConstantsDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>479</width>
+    <height>461</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>User-Defined Constants</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../resources.qrc">
+    <normaloff>:/qtgameengine/icons/constants.png</normaloff>:/qtgameengine/icons/constants.png</iconset>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_2" stretch="1,0">
+   <item>
+    <widget class="QGroupBox" name="groupBox">
+     <layout class="QVBoxLayout" name="verticalLayout" stretch="1,0">
+      <item>
+       <widget class="QTreeView" name="treeView">
+        <property name="rootIsDecorated">
+         <bool>false</bool>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <layout class="QGridLayout" name="gridLayout">
+        <item row="0" column="0">
+         <widget class="QPushButton" name="pushButtonInsert">
+          <property name="toolTip">
+           <string>Insert a constant before the current one</string>
+          </property>
+          <property name="text">
+           <string>&amp;Insert</string>
+          </property>
+          <property name="icon">
+           <iconset resource="../resources.qrc">
+            <normaloff>:/qtgameengine/icons/add.png</normaloff>:/qtgameengine/icons/add.png</iconset>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="3">
+         <widget class="QPushButton" name="pushButtonSort">
+          <property name="toolTip">
+           <string>Sort the constants</string>
+          </property>
+          <property name="text">
+           <string>&amp;Sort</string>
+          </property>
+          <property name="icon">
+           <iconset resource="../resources.qrc">
+            <normaloff>:/qtgameengine/icons/sort.png</normaloff>:/qtgameengine/icons/sort.png</iconset>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="1">
+         <widget class="QPushButton" name="pushButtonDelete">
+          <property name="toolTip">
+           <string>Delete the current constant</string>
+          </property>
+          <property name="text">
+           <string>&amp;Delete</string>
+          </property>
+          <property name="icon">
+           <iconset resource="../resources.qrc">
+            <normaloff>:/qtgameengine/icons/delete.png</normaloff>:/qtgameengine/icons/delete.png</iconset>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="4">
+         <widget class="QPushButton" name="pushButtonLoad">
+          <property name="toolTip">
+           <string>Load the constants from a text file</string>
+          </property>
+          <property name="text">
+           <string>&amp;Load</string>
+          </property>
+          <property name="icon">
+           <iconset resource="../resources.qrc">
+            <normaloff>:/qtgameengine/icons/open.png</normaloff>:/qtgameengine/icons/open.png</iconset>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="2">
+         <widget class="QPushButton" name="pushButtonUp">
+          <property name="toolTip">
+           <string>Moves the constant up</string>
+          </property>
+          <property name="text">
+           <string>&amp;Up</string>
+          </property>
+          <property name="icon">
+           <iconset resource="../resources.qrc">
+            <normaloff>:/qtgameengine/icons/arrow-up.png</normaloff>:/qtgameengine/icons/arrow-up.png</iconset>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="0">
+         <widget class="QPushButton" name="pushButtonAdd">
+          <property name="toolTip">
+           <string>Append a constant at the end of the list</string>
+          </property>
+          <property name="text">
+           <string>&amp;Add</string>
+          </property>
+          <property name="icon">
+           <iconset resource="../resources.qrc">
+            <normaloff>:/qtgameengine/icons/add.png</normaloff>:/qtgameengine/icons/add.png</iconset>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="1">
+         <widget class="QPushButton" name="pushButtonClear">
+          <property name="toolTip">
+           <string>Clear all the constants</string>
+          </property>
+          <property name="text">
+           <string>&amp;Clear</string>
+          </property>
+          <property name="icon">
+           <iconset resource="../resources.qrc">
+            <normaloff>:/qtgameengine/icons/new.png</normaloff>:/qtgameengine/icons/new.png</iconset>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="2">
+         <widget class="QPushButton" name="pushButtonDown">
+          <property name="toolTip">
+           <string>Moves the constant down</string>
+          </property>
+          <property name="text">
+           <string>Do&amp;wn</string>
+          </property>
+          <property name="icon">
+           <iconset resource="../resources.qrc">
+            <normaloff>:/qtgameengine/icons/arrow-down.png</normaloff>:/qtgameengine/icons/arrow-down.png</iconset>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="4">
+         <widget class="QPushButton" name="pushButtonSave">
+          <property name="toolTip">
+           <string>Save the constants to a text file</string>
+          </property>
+          <property name="text">
+           <string>Sa&amp;ve</string>
+          </property>
+          <property name="icon">
+           <iconset resource="../resources.qrc">
+            <normaloff>:/qtgameengine/icons/save.png</normaloff>:/qtgameengine/icons/save.png</iconset>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Ok</set>
+     </property>
+     <property name="centerButtons">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../resources.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>UserDefinedConstantsDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>239</x>
+     <y>439</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>239</x>
+     <y>230</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>UserDefinedConstantsDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>239</x>
+     <y>439</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>239</x>
+     <y>230</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>