Color tip for QML; Start of a bit more extensible tooltip class.

src/plugins/cppeditor/cpphoverhandler.cpp

@@ -39,6 +39,7 @@
 #include <texteditor/itexteditor.h>
 #include <texteditor/basetexteditor.h>
 #include <texteditor/displaysettings.h>
+#include <texteditor/tooltip/tooltip.h>
 #include <debugger/debuggerconstants.h>
 
 #include <FullySpecifiedType.h>
@@ -57,7 +58,6 @@
 #include <QtCore/QFileInfo>
 #include <QtCore/QtAlgorithms>
 #include <QtCore/QStringBuilder>
-#include <QtGui/QToolTip>
 #include <QtGui/QTextCursor>
 
 #include <algorithm>
@@ -159,7 +159,7 @@ void CppHoverHandler::updateContextHelpId(TextEditor::ITextEditor *editor, int p
 
     // If the tooltip is visible and there is a help match, this match is used to update the help
     // id. Otherwise, the identification process happens.
-    if (!QToolTip::isVisible() || m_matchingHelpCandidate == -1)
+    if (!TextEditor::ToolTip::instance()->isVisible() || m_matchingHelpCandidate == -1)
         identifyMatch(editor, pos);
 
     if (m_matchingHelpCandidate != -1)
@@ -185,7 +185,7 @@ void CppHoverHandler::showToolTip(TextEditor::ITextEditor *editor, const QPoint
     identifyMatch(editor, pos);
 
     if (m_toolTip.isEmpty()) {
-        QToolTip::hideText();
+        TextEditor::ToolTip::instance()->hide();
     } else {
         if (!m_classHierarchy.isEmpty())
             generateDiagramTooltip(baseEditor->displaySettings().m_extendTooltips);
@@ -203,7 +203,7 @@ void CppHoverHandler::showToolTip(TextEditor::ITextEditor *editor, const QPoint
 #endif
         );
 
-        QToolTip::showText(pnt, m_toolTip);
+        TextEditor::ToolTip::instance()->showText(pnt, m_toolTip, editor->widget());
     }
 }
 

src/plugins/qmljseditor/qmljshoverhandler.cpp

@@ -37,29 +37,55 @@
 #include <coreplugin/editormanager/editormanager.h>
 #include <debugger/debuggerconstants.h>
 #include <extensionsystem/pluginmanager.h>
-#include <qmljs/qmljslookupcontext.h>
 #include <qmljs/qmljsinterpreter.h>
 #include <qmljs/parser/qmljsast_p.h>
+#include <qmljs/parser/qmljsastfwd_p.h>
+#include <qmljs/qmljscheck.h>
 #include <texteditor/itexteditor.h>
 #include <texteditor/basetexteditor.h>
-
-#include <QtCore/QDebug>
-#include <QtCore/QDir>
-#include <QtCore/QFileInfo>
-#include <QtCore/QSettings>
-#include <QtGui/QToolTip>
-#include <QtGui/QTextCursor>
-#include <QtGui/QTextBlock>
+#include <texteditor/tooltip/tooltip.h>
 
 using namespace Core;
 using namespace QmlJS;
 using namespace QmlJSEditor;
 using namespace QmlJSEditor::Internal;
 
-HoverHandler::HoverHandler(QObject *parent)
-    : QObject(parent)
+namespace {
+
+    QString textAt(const Document::Ptr doc,
+                   const AST::SourceLocation &from,
+                   const AST::SourceLocation &to)
     {
-    m_modelManager = ExtensionSystem::PluginManager::instance()->getObject<QmlJS::ModelManagerInterface>();
+        return doc->source().mid(from.offset, to.end() - from.begin());
+    }
+
+    AST::UiObjectInitializer *nodeInitializer(AST::Node *node)
+    {
+        AST::UiObjectInitializer *initializer = 0;
+        if (const AST::UiObjectBinding *binding = AST::cast<const AST::UiObjectBinding *>(node))
+            initializer = binding->initializer;
+         else if (const AST::UiObjectDefinition *definition =
+                  AST::cast<const AST::UiObjectDefinition *>(node))
+            initializer = definition->initializer;
+        return initializer;
+    }
+
+    template <class T>
+    bool posIsInSource(const unsigned pos, T *node)
+    {
+        if (node &&
+            pos >= node->firstSourceLocation().begin() && pos < node->lastSourceLocation().end()) {
+            return true;
+        }
+        return false;
+    }
+}
+
+HoverHandler::HoverHandler(QObject *parent) :
+    QObject(parent), m_modelManager(0), m_matchingHelpCandidate(-1)
+{
+    m_modelManager =
+        ExtensionSystem::PluginManager::instance()->getObject<QmlJS::ModelManagerInterface>();
 
     // Listen for editor opened events in order to connect to tooltip/helpid requests
     connect(ICore::instance()->editorManager(), SIGNAL(editorOpened(Core::IEditor *)),
@@ -85,17 +111,19 @@ void HoverHandler::showToolTip(TextEditor::ITextEditor *editor, const QPoint &po
         return;
 
     ICore *core = ICore::instance();
-    const int dbgcontext = core->uniqueIDManager()->uniqueIdentifier(Debugger::Constants::C_DEBUGMODE);
-
+    const int dbgcontext =
+        core->uniqueIDManager()->uniqueIdentifier(Debugger::Constants::C_DEBUGMODE);
     if (core->hasContext(dbgcontext))
         return;
 
-    updateHelpIdAndTooltip(editor, pos);
+    editor->setContextHelpId(QString());
+
+    identifyMatch(editor, pos);
 
     if (m_toolTip.isEmpty())
-        QToolTip::hideText();
+        TextEditor::ToolTip::instance()->hide();
     else {
-        const QPoint pnt = point - QPoint(0,
+        const QPoint &pnt = point - QPoint(0,
 #ifdef Q_WS_WIN
         24
 #else
@@ -103,88 +131,166 @@ void HoverHandler::showToolTip(TextEditor::ITextEditor *editor, const QPoint &po
 #endif
         );
 
-        QToolTip::showText(pnt, m_toolTip);
+        if (m_colorTip.isValid()) {
+            TextEditor::ToolTip::instance()->showColor(pnt, m_colorTip, editor->widget());
+        } else {
+            m_toolTip = Qt::escape(m_toolTip);
+            if (m_matchingHelpCandidate != -1) {
+                m_toolTip = QString::fromUtf8(
+                    "<table><tr><td valign=middle><nobr>%1</td><td>"
+                    "<img src=\":/cppeditor/images/f1.png\"></td></tr></table>").arg(m_toolTip);
+            } else {
+                m_toolTip = QString::fromUtf8("<nobr>%1</nobr>").arg(m_toolTip);
+            }
+            TextEditor::ToolTip::instance()->showText(pnt, m_toolTip, editor->widget());
+        }
     }
 }
 
 void HoverHandler::updateContextHelpId(TextEditor::ITextEditor *editor, int pos)
 {
-    updateHelpIdAndTooltip(editor, pos);
+    // If the tooltip is visible and there is a help match, use it to update the help id.
+    // Otherwise, identify the match.
+    if (!TextEditor::ToolTip::instance()->isVisible() || m_matchingHelpCandidate == -1)
+        identifyMatch(editor, pos);
+
+    if (m_matchingHelpCandidate != -1)
+        editor->setContextHelpId(m_helpCandidates.at(m_matchingHelpCandidate));
+    else
+        editor->setContextHelpId(QString());
 }
 
-void HoverHandler::updateHelpIdAndTooltip(TextEditor::ITextEditor *editor, int pos)
+void HoverHandler::resetMatchings()
 {
-    m_helpId.clear();
+    m_matchingHelpCandidate = -1;
+    m_helpCandidates.clear();
     m_toolTip.clear();
+    m_colorTip = QColor();
+}
+
+void HoverHandler::identifyMatch(TextEditor::ITextEditor *editor, int pos)
+{
+    resetMatchings();
 
     if (!m_modelManager)
         return;
 
-    QmlJSTextEditor *edit = qobject_cast<QmlJSTextEditor *>(editor->widget());
-    if (!edit)
+    QmlJSTextEditor *qmlEditor = qobject_cast<QmlJSTextEditor *>(editor->widget());
+    if (!qmlEditor)
         return;
 
-    const SemanticInfo semanticInfo = edit->semanticInfo();
-
-    if (semanticInfo.revision() != edit->editorRevision())
+    if (!matchDiagnosticMessage(qmlEditor, pos)) {
+        const SemanticInfo &semanticInfo = qmlEditor->semanticInfo();
+        if (semanticInfo.revision() != qmlEditor->editorRevision())
             return;
 
-    const Snapshot snapshot = semanticInfo.snapshot;
-    const Document::Ptr qmlDocument = semanticInfo.document;
-
-    // We only want to show F1 if the tooltip matches the help id
-    bool showF1 = true;
-
-    foreach (const QTextEdit::ExtraSelection &sel, edit->extraSelections(TextEditor::BaseTextEditor::CodeWarningsSelection)) {
-        if (pos >= sel.cursor.selectionStart() && pos <= sel.cursor.selectionEnd()) {
-            showF1 = false;
-            m_toolTip = sel.format.toolTip();
-        }
-    }
-
-    QString symbolName = QLatin1String("<unknown>");
-    if (m_helpId.isEmpty() && m_toolTip.isEmpty()) {
-        AST::Node *node = semanticInfo.nodeUnderCursor(pos);
-        if (node && !(AST::cast<AST::StringLiteral *>(node) != 0 || AST::cast<AST::NumericLiteral *>(node) != 0)) {
         QList<AST::Node *> astPath = semanticInfo.astPath(pos);
+        if (astPath.isEmpty())
+            return;
 
+        const Snapshot &snapshot = semanticInfo.snapshot;
+        const Document::Ptr qmlDocument = semanticInfo.document;
         LookupContext::Ptr lookupContext = LookupContext::create(qmlDocument, snapshot, astPath);
+
+        if (!matchColorItem(lookupContext, qmlDocument, astPath, pos))
+            handleOrdinaryMatch(lookupContext, semanticInfo.nodeUnderCursor(pos));
+    }
+
+    evaluateHelpCandidates();
+}
+
+bool HoverHandler::matchDiagnosticMessage(QmlJSTextEditor *qmlEditor, int pos)
+{
+    foreach (const QTextEdit::ExtraSelection &sel,
+             qmlEditor->extraSelections(TextEditor::BaseTextEditor::CodeWarningsSelection)) {
+        if (pos >= sel.cursor.selectionStart() && pos <= sel.cursor.selectionEnd()) {
+            m_toolTip = sel.format.toolTip();
+            return true;
+        }
+    }
+    return false;
+}
+
+bool HoverHandler::matchColorItem(const LookupContext::Ptr &lookupContext,
+                                  const Document::Ptr &qmlDocument,
+                                  const QList<AST::Node *> &astPath,
+                                  unsigned pos)
+{
+    AST::UiObjectInitializer *initializer = nodeInitializer(astPath.last());
+    if (!initializer)
+        return false;
+
+    AST::UiObjectMember *member = 0;
+    for (AST::UiObjectMemberList *list = initializer->members; list; list = list->next) {
+        if (posIsInSource(pos, list->member)) {
+            member = list->member;
+            break;
+        }
+    }
+    if (!member)
+        return false;
+
+    QString color;
+    const Interpreter::Value *value = 0;
+    if (const AST::UiScriptBinding *binding = AST::cast<const AST::UiScriptBinding *>(member)) {
+        if (binding->qualifiedId && posIsInSource(pos, binding->statement)) {
+            value = lookupContext->evaluate(binding->qualifiedId);
+            if (value && value->asColorValue()) {
+                color = textAt(qmlDocument,
+                               binding->statement->firstSourceLocation(),
+                               binding->statement->lastSourceLocation());
+            }
+        }
+    } else if (const AST::UiPublicMember *publicMember =
+               AST::cast<const AST::UiPublicMember *>(member)) {
+        if (publicMember->name && posIsInSource(pos, publicMember->expression)) {
+            value = lookupContext->context()->lookup(publicMember->name->asString());
+            if (const Interpreter::Reference *ref = value->asReference())
+                value = lookupContext->context()->lookupReference(ref);
+                color = textAt(qmlDocument,
+                               publicMember->expression->firstSourceLocation(),
+                               publicMember->expression->lastSourceLocation());
+        }
+    }
+
+    if (!color.isEmpty()) {
+        color.remove(QLatin1Char('\''));
+        color.remove(QLatin1Char('\"'));
+        color.remove(QLatin1Char(';'));
+
+        m_colorTip = QmlJS::toQColor(color);
+        if (m_colorTip.isValid()) {
+            m_toolTip = color;
+            return true;
+        }
+    }
+    return false;
+}
+
+void HoverHandler::handleOrdinaryMatch(const LookupContext::Ptr &lookupContext, AST::Node *node)
+{
+    if (node && !(AST::cast<AST::StringLiteral *>(node) != 0 ||
+                  AST::cast<AST::NumericLiteral *>(node) != 0)) {
         const Interpreter::Value *value = lookupContext->evaluate(node);
+        m_toolTip = prettyPrint(value, lookupContext->context());
+    }
+}
 
-            QStringList baseClasses;
-            m_toolTip = prettyPrint(value, lookupContext->context(), &baseClasses);
-
-            foreach (const QString &baseClass, baseClasses) {
-                QString helpId = QLatin1String("QML.");
-                helpId += baseClass;
-
+void HoverHandler::evaluateHelpCandidates()
+{
+    for (int i = 0; i < m_helpCandidates.size(); ++i) {
+        QString helpId = m_helpCandidates.at(i);
+        helpId.prepend(QLatin1String("QML."));
         if (!Core::HelpManager::instance()->linksForIdentifier(helpId).isEmpty()) {
-                    m_helpId = helpId;
+            m_matchingHelpCandidate = i;
+            m_helpCandidates[i] = helpId;
             break;
         }
     }
 }
-    }
 
-    if (!m_toolTip.isEmpty())
-        m_toolTip = Qt::escape(m_toolTip);
-
-    if (!m_helpId.isEmpty()) {
-        if (showF1) {
-            m_toolTip = QString::fromUtf8("<table><tr><td valign=middle><nobr>%1</td>"
-                                            "<td><img src=\":/cppeditor/images/f1.png\"></td></tr></table>")
-                    .arg(m_toolTip);
-        }
-        editor->setContextHelpId(m_helpId);
-    } else if (!m_toolTip.isEmpty()) {
-        m_toolTip = QString::fromUtf8("<nobr>%1").arg(m_toolTip);
-    } else if (!m_helpId.isEmpty()) {
-        m_toolTip = QString::fromUtf8("<nobr>No help available for \"%1\"").arg(symbolName);
-    }
-}
-
-QString HoverHandler::prettyPrint(const QmlJS::Interpreter::Value *value, QmlJS::Interpreter::Context *context,
-                                  QStringList *baseClasses) const
+QString HoverHandler::prettyPrint(const QmlJS::Interpreter::Value *value,
+                                  QmlJS::Interpreter::Context *context)
 {
     if (! value)
         return QString();
@@ -194,14 +300,15 @@ QString HoverHandler::prettyPrint(const QmlJS::Interpreter::Value *value, QmlJS:
             const QString className = objectValue->className();
 
             if (! className.isEmpty())
-                baseClasses->append(className);
+                m_helpCandidates.append(className);
 
             objectValue = objectValue->prototype(context);
         } while (objectValue);
 
-        if (! baseClasses->isEmpty())
-            return baseClasses->first();
-    } else if (const Interpreter::QmlEnumValue *enumValue = dynamic_cast<const Interpreter::QmlEnumValue *>(value)) {
+        if (! m_helpCandidates.isEmpty())
+            return m_helpCandidates.first();
+    } else if (const Interpreter::QmlEnumValue *enumValue =
+               dynamic_cast<const Interpreter::QmlEnumValue *>(value)) {
         return enumValue->name();
     }
 

src/plugins/qmljseditor/qmljshoverhandler.h

@@ -31,25 +31,20 @@
 #define QMLJSHOVERHANDLER_H
 
 #include <qmljs/qmljsmodelmanagerinterface.h>
+#include <qmljs/qmljslookupcontext.h>
+
 #include <QtCore/QObject>
+#include <QtCore/QStringList>
+#include <QtGui/QColor>
 
 QT_BEGIN_NAMESPACE
 class QPoint;
-class QStringList;
 QT_END_NAMESPACE
 
 namespace Core {
 class IEditor;
 }
 
-namespace QmlJS {
-    namespace Interpreter {
-        class Engine;
-        class Context;
-        class Value;
-    }
-}
-
 namespace TextEditor {
 class ITextEditor;
 }
@@ -57,6 +52,9 @@ class ITextEditor;
 namespace QmlJSEditor {
 namespace Internal {
 
+class SemanticInfo;
+class QmlJSTextEditor;
+
 class HoverHandler : public QObject
 {
     Q_OBJECT
@@ -72,14 +70,26 @@ private slots:
     void editorOpened(Core::IEditor *editor);
 
 private:
-    void updateHelpIdAndTooltip(TextEditor::ITextEditor *editor, int pos);
-    QString prettyPrint(const QmlJS::Interpreter::Value *value, QmlJS::Interpreter::Context *context,
-                        QStringList *baseClasses) const;
+    void resetMatchings();
+    void identifyMatch(TextEditor::ITextEditor *editor, int pos);
+    bool matchDiagnosticMessage(QmlJSTextEditor *qmlEditor, int pos);
+    bool matchColorItem(const QmlJS::LookupContext::Ptr &lookupContext,
+                        const QmlJS::Document::Ptr &qmlDocument,
+                        const QList<QmlJS::AST::Node *> &astPath,
+                        unsigned pos);
+    void handleOrdinaryMatch(const QmlJS::LookupContext::Ptr &lookupContext,
+                             QmlJS::AST::Node *node);
+
+    void evaluateHelpCandidates();
+
+    QString prettyPrint(const QmlJS::Interpreter::Value *value,
+                        QmlJS::Interpreter::Context *context);
 
-private:
     QmlJS::ModelManagerInterface *m_modelManager;
-    QString m_helpId;
+    int m_matchingHelpCandidate;
+    QStringList m_helpCandidates;
     QString m_toolTip;
+    QColor m_colorTip;
 };
 
 } // namespace Internal

src/plugins/texteditor/texteditor.pro

@@ -4,8 +4,10 @@ DEFINES += TEXTEDITOR_LIBRARY
 QT += xml network
 include(../../qtcreatorplugin.pri)
 include(texteditor_dependencies.pri)
-INCLUDEPATH += generichighlighter
-DEPENDPATH += generichighlighter
+INCLUDEPATH += generichighlighter \
+    tooltip
+DEPENDPATH += generichighlighter \
+    tooltip
 SOURCES += texteditorplugin.cpp \
     textfilewizard.cpp \
     plaintexteditor.cpp \
@@ -62,7 +64,10 @@ SOURCES += texteditorplugin.cpp \
     generichighlighter/definitiondownloader.cpp \
     refactoringchanges.cpp \
     refactoroverlay.cpp \
-    outlinefactory.cpp
+    outlinefactory.cpp \
+    tooltip/tooltip.cpp \
+    tooltip/tips.cpp \
+    tooltip/tipcontents.cpp
 
 HEADERS += texteditorplugin.h \
     textfilewizard.h \
@@ -128,7 +133,10 @@ HEADERS += texteditorplugin.h \
     refactoringchanges.h \
     refactoroverlay.h \
     outlinefactory.h \
-    ioutlinewidget.h
+    ioutlinewidget.h \
+    tooltip/tooltip.h \
+    tooltip/tips.h \
+    tooltip/tipcontents.h
 
 FORMS += behaviorsettingspage.ui \
     displaysettingspage.ui \

src/plugins/texteditor/tooltip/tipcontents.cpp

@@ -0,0 +1,76 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#include "tipcontents.h"
+
+using namespace TextEditor;
+using namespace Internal;
+
+TipContent::TipContent()
+{}
+
+TipContent::~TipContent()
+{}
+
+QColorContent::QColorContent(const QColor &color) : m_color(color)
+{}
+
+QColorContent::~QColorContent()
+{}
+
+bool TipContent::equals(const QColorContent *colorContent) const
+{
+    Q_UNUSED(colorContent)
+    return false;
+}
+
+bool QColorContent::isValid() const
+{
+    return m_color.isValid();
+}
+
+int QColorContent::showTime() const
+{
+    return 4000;
+}
+
+bool QColorContent::equals(const TipContent *tipContent) const
+{
+    return tipContent->equals(this);
+}
+
+bool QColorContent::equals(const QColorContent *colorContent) const
+{
+    return m_color == colorContent->color();
+}
+
+const QColor &QColorContent::color() const
+{
+    return m_color;
+}

src/plugins/texteditor/tooltip/tipcontents.h

@@ -0,0 +1,72 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#ifndef TIPCONTENTS_H
+#define TIPCONTENTS_H
+
+#include <QtGui/QColor>
+
+namespace TextEditor {
+namespace Internal {
+
+class QColorContent;
+
+class TipContent
+{
+public:
+    TipContent();
+    virtual ~TipContent();
+
+    virtual bool isValid() const = 0;
+    virtual int showTime() const = 0;
+    virtual bool equals(const TipContent *tipContent) const = 0;
+    virtual bool equals(const QColorContent *colorContent) const;
+};
+
+class QColorContent : public TipContent
+{
+public:
+    QColorContent(const QColor &color);
+    virtual ~QColorContent();
+
+    virtual bool isValid() const;
+    virtual int showTime() const;
+    virtual bool equals(const TipContent *tipContent) const;
+    virtual bool equals(const QColorContent *colorContent) const;
+
+    const QColor &color() const;
+
+private:
+    QColor m_color;
+};
+
+} // namespace Internal
+} // namespace TextEditor
+
+#endif // TIPCONTENTS_H

src/plugins/texteditor/tooltip/tips.cpp

@@ -0,0 +1,100 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#include "tips.h"
+#include "tipcontents.h"
+
+#include <QtCore/QRect>
+#include <QtGui/QColor>
+#include <QtGui/QPainter>
+#include <QtGui/QPixmap>
+
+using namespace TextEditor;
+using namespace Internal;
+
+namespace {
+    // @todo: Reuse...
+    QPixmap tilePixMap(int size)
+    {
+        const int checkerbordSize= size;
+        QPixmap tilePixmap(checkerbordSize * 2, checkerbordSize * 2);
+        tilePixmap.fill(Qt::white);
+        QPainter tilePainter(&tilePixmap);
+        QColor color(220, 220, 220);
+        tilePainter.fillRect(0, 0, checkerbordSize, checkerbordSize, color);
+        tilePainter.fillRect(checkerbordSize, checkerbordSize, checkerbordSize, checkerbordSize, color);
+        return tilePixmap;
+    }
+}
+
+Tip::Tip(QWidget *parent) : QFrame(parent)
+{
+    setWindowFlags(Qt::ToolTip);
+    setAutoFillBackground(true);
+    ensurePolished();
+}
+
+Tip::~Tip()
+{}
+
+void Tip::setContent(const QSharedPointer<TipContent> &content)
+{
+    m_content = content;
+    configure();
+}
+
+const QSharedPointer<TipContent> &Tip::content() const
+{ return m_content; }
+
+ColorTip::ColorTip(QWidget *parent) : Tip(parent)
+{
+    setFrameStyle(QFrame::Box);
+    resize(QSize(40, 40));
+
+    m_tilePixMap = tilePixMap(9);
+}
+
+ColorTip::~ColorTip()
+{}
+
+void ColorTip::configure()
+{
+    update();
+}
+
+void ColorTip::paintEvent(QPaintEvent *event)
+{
+    QPainter painter(this);
+    QRect r(1, 1, width() - 2, height() - 2);
+    painter.drawTiledPixmap(r, m_tilePixMap);
+    painter.setBrush(static_cast<QColorContent *>(content().data())->color());
+    painter.drawRect(rect());
+
+    QFrame::paintEvent(event);
+}

src/plugins/texteditor/tooltip/tips.h

@@ -0,0 +1,81 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#ifndef TIPS_H
+#define TIPS_H
+
+#include <QtCore/QSharedPointer>
+#include <QtGui/QFrame>
+#include <QtGui/QPixmap>
+
+QT_BEGIN_NAMESPACE
+class QColor;
+QT_END_NAMESPACE
+
+namespace TextEditor {
+namespace Internal {
+
+class TipContent;
+
+class Tip : public QFrame
+{
+    Q_OBJECT
+protected:
+    Tip(QWidget *parent);
+
+public:
+    virtual ~Tip();
+
+    void setContent(const QSharedPointer<TipContent> &content);
+    const QSharedPointer<TipContent> &content() const;
+
+private:
+    virtual void configure() = 0;
+
+    QSharedPointer<TipContent> m_content;
+};
+
+class ColorTip : public Tip
+{
+    Q_OBJECT
+public:
+    ColorTip(QWidget *parent);
+    virtual ~ColorTip();
+
+private:
+    virtual void configure();
+    virtual void paintEvent(QPaintEvent *event);
+
+    QPixmap m_tilePixMap;
+};
+
+} // namespace Internal
+} // namespace TextEditor
+
+#endif // TIPS_H

src/plugins/texteditor/tooltip/tooltip.cpp

@@ -0,0 +1,233 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#include "tooltip.h"
+#include "tips.h"
+#include "tipcontents.h"
+
+#include <QtCore/QString>
+#include <QtGui/QColor>
+#include <QtGui/QApplication>
+#include <QtGui/QDesktopWidget>
+#include <QtGui/QToolTip>
+#include <QtGui/QKeyEvent>
+
+using namespace TextEditor;
+using namespace Internal;
+
+ToolTip::ToolTip() : m_tip(0), m_widget(0)
+{
+    connect(&m_showTimer, SIGNAL(timeout()), this, SLOT(hideTipImmediately()));
+    connect(&m_hideDelayTimer, SIGNAL(timeout()), this, SLOT(hideTipImmediately()));
+}
+
+ToolTip::~ToolTip()
+{ m_tip = 0; }
+
+ToolTip *ToolTip::instance()
+{
+    static ToolTip tooltip;
+    return &tooltip;
+}
+
+void ToolTip::showText(const QPoint &pos, const QString &text, QWidget *w)
+{
+    hideTipImmediately();
+    QToolTip::showText(pos, text, w);
+}
+
+void ToolTip::showColor(const QPoint &pos, const QColor &color, QWidget *w)
+{
+    hideQtTooltip();
+    QSharedPointer<TipContent> colorContent(new QColorContent(color));
+    if (acceptShow(colorContent, pos, w) && colorContent->isValid()) {
+#ifndef Q_WS_WIN
+        m_tip = new ColorTip(w);
+#else
+        m_tip = new ColorTip(QApplication::desktop()->screen(tipScreen(pos, w)));
+#endif
+        setUp(colorContent, pos, w);
+        qApp->installEventFilter(this);
+        showTip();
+    }
+}
+
+bool ToolTip::isVisible() const
+{
+    return QToolTip::isVisible() || (m_tip && m_tip->isVisible());
+}
+
+bool ToolTip::acceptShow(const QSharedPointer<TipContent> &content, const QPoint &pos, QWidget *w)
+{
+    if (m_tip && m_tip->isVisible()) {
+        if (!content->isValid()) {
+            hideTipWithDelay();
+            return false;
+        } else {
+            // Reuse current tip.
+            QPoint localPos = pos;
+            if (w)
+                localPos = w->mapFromGlobal(pos);
+            if (requiresSetUp(content, w))
+                setUp(content, pos, w);
+            return false;
+        }
+    }
+    return true;
+}
+
+void ToolTip::setUp(const QSharedPointer<TipContent> &content, const QPoint &pos, QWidget *w)
+{
+    m_tip->setContent(content);
+    placeTip(pos, w);
+    m_widget = w;
+    m_showTimer.start(content->showTime());
+}
+
+bool ToolTip::requiresSetUp(const QSharedPointer<TipContent> &tipContent, QWidget *w) const
+{
+    if (!m_tip->content()->equals(tipContent.data()))
+        return true;
+    if (m_widget != w)
+        return true;
+    return false;
+}
+
+void ToolTip::showTip()
+{
+    m_tip->show();
+}
+
+void ToolTip::hide()
+{
+    hideQtTooltip();
+    hideTipWithDelay();
+}
+
+void ToolTip::hideTipWithDelay()
+{
+    if (!m_hideDelayTimer.isActive())
+        m_hideDelayTimer.start(300);
+}
+
+void ToolTip::hideTipImmediately()
+{
+    if (m_tip) {
+        m_tip->close();
+        m_tip->deleteLater();
+        m_tip = 0;
+    }
+    m_showTimer.stop();
+    m_hideDelayTimer.stop();
+    qApp->removeEventFilter(this);
+}
+
+void ToolTip::hideQtTooltip()
+{
+    if (QToolTip::isVisible())
+        QToolTip::hideText();
+}
+
+void ToolTip::placeTip(const QPoint &pos, QWidget *w)
+{
+#ifdef Q_WS_MAC
+    QRect screen = QApplication::desktop()->availableGeometry(tipScreen(pos, w));
+#else
+    QRect screen = QApplication::desktop()->screenGeometry(tipScreen(pos, w));
+#endif
+
+    QPoint p = pos;
+    p += QPoint(2,
+#ifdef Q_WS_WIN
+                21
+#else
+                16
+#endif
+                );
+
+    if (p.x() + m_tip->width() > screen.x() + screen.width())
+        p.rx() -= 4 + m_tip->width();
+    if (p.y() + m_tip->height() > screen.y() + screen.height())
+        p.ry() -= 24 + m_tip->height();
+    if (p.y() < screen.y())
+        p.setY(screen.y());
+    if (p.x() + m_tip->width() > screen.x() + screen.width())
+        p.setX(screen.x() + screen.width() - m_tip->width());
+    if (p.x() < screen.x())
+        p.setX(screen.x());
+    if (p.y() + m_tip->height() > screen.y() + screen.height())
+        p.setY(screen.y() + screen.height() - m_tip->height());
+
+    m_tip->move(p);
+}
+
+int ToolTip::tipScreen(const QPoint &pos, QWidget *w) const
+{
+    if (QApplication::desktop()->isVirtualDesktop())
+        return QApplication::desktop()->screenNumber(pos);
+    else
+        return QApplication::desktop()->screenNumber(w);
+}
+
+bool ToolTip::eventFilter(QObject *o, QEvent *event)
+{
+    Q_UNUSED(o)
+
+    switch (event->type()) {
+#ifdef Q_WS_MAC
+    case QEvent::KeyPress:
+    case QEvent::KeyRelease: {
+        int key = static_cast<QKeyEvent *>(event)->key();
+        Qt::KeyboardModifiers mody = static_cast<QKeyEvent *>(event)->modifiers();
+        if (!(mody & Qt::KeyboardModifierMask)
+            && key != Qt::Key_Shift && key != Qt::Key_Control
+            && key != Qt::Key_Alt && key != Qt::Key_Meta)
+            hideTipWithDelay();
+        break;
+    }
+#endif
+    case QEvent::Leave:
+        hideTipWithDelay();
+        break;
+    case QEvent::WindowActivate:
+    case QEvent::WindowDeactivate:
+    case QEvent::MouseButtonPress:
+    case QEvent::MouseButtonRelease:
+    case QEvent::MouseButtonDblClick:
+    case QEvent::FocusIn:
+    case QEvent::FocusOut:
+    case QEvent::Wheel:
+        hideTipImmediately();
+        break;
+
+    default:
+        break;
+    }
+    return false;
+}

src/plugins/texteditor/tooltip/tooltip.h

@@ -0,0 +1,101 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#ifndef TOOLTIP_H
+#define TOOLTIP_H
+
+#include "texteditor/texteditor_global.h"
+
+#include <QtCore/QSharedPointer>
+#include <QtCore/QObject>
+#include <QtCore/QTimer>
+
+QT_BEGIN_NAMESPACE
+class QPoint;
+class QString;
+class QColor;
+class QWidget;
+QT_END_NAMESPACE
+
+namespace TextEditor {
+
+namespace Internal {
+class Tip;
+class TipContent;
+}
+
+/*
+ * This class contains some code duplicated from QTooltip. It would be good to make that reusable.
+ */
+
+class TEXTEDITOR_EXPORT ToolTip : public QObject
+{
+    Q_OBJECT
+private:
+    ToolTip();
+
+public:
+    virtual ~ToolTip();
+
+    static ToolTip *instance();
+
+    void showText(const QPoint &pos, const QString &text, QWidget *w = 0);
+    void showColor(const QPoint &pos, const QColor &color, QWidget *w = 0);
+    void hide();
+    bool isVisible() const;
+
+    virtual bool eventFilter(QObject *o, QEvent *event);
+
+private:
+    bool acceptShow(const QSharedPointer<Internal::TipContent> &content,
+                    const QPoint &pos,
+                    QWidget *w);
+    void setUp(const QSharedPointer<Internal::TipContent> &content,
+               const QPoint &pos,
+               QWidget *w);
+    bool requiresSetUp(const QSharedPointer<Internal::TipContent> &content, QWidget *w) const;
+    void placeTip(const QPoint &pos, QWidget *w);
+    int tipScreen(const QPoint &pos, QWidget *w) const;
+    void showTip();
+    void hideTipWithDelay();
+    void hideQtTooltip();
+
+private slots:
+    void hideTipImmediately();
+
+private:
+    Internal::Tip *m_tip;
+    QWidget *m_widget;
+    QTimer m_showTimer;
+    QTimer m_hideDelayTimer;
+};
+
+} // namespace TextEditor
+
+#endif // TOOLTIP_H