Meson: Flatten directory hierarchy

Keep tests/ and icons/ but put the rest into the toplevel.

The previous setup was so different from the rest of the bunch that
it regularly stuck out in maintenance tasks.

Change-Id: I69821be6268f69682353a388f6bb1fa343215303
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/mesonprojectmanager/toolkitaspectwidget.cpp

@@ -0,0 +1,114 @@
+// Copyright (C) 2020 Alexis Jeandet.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
+
+#include "toolkitaspectwidget.h"
+
+#include "mesonpluginconstants.h"
+#include "mesontoolkitaspect.h"
+#include "ninjatoolkitaspect.h"
+
+#include <utils/qtcassert.h>
+
+namespace MesonProjectManager {
+namespace Internal {
+
+ToolKitAspectWidget::ToolKitAspectWidget(ProjectExplorer::Kit *kit,
+                                         const ProjectExplorer::KitAspect *ki,
+                                         ToolType type)
+    : ProjectExplorer::KitAspectWidget(kit, ki)
+    , m_toolsComboBox(createSubWidget<QComboBox>())
+    , m_manageButton(createManageButton(Constants::SettingsPage::TOOLS_ID))
+    , m_type{type}
+{
+    m_toolsComboBox->setSizePolicy(QSizePolicy::Ignored,
+                                   m_toolsComboBox->sizePolicy().verticalPolicy());
+    m_toolsComboBox->setEnabled(false);
+    m_toolsComboBox->setToolTip(ki->description());
+    loadTools();
+
+    connect(MesonTools::instance(), &MesonTools::toolAdded,
+            this, &ToolKitAspectWidget::addTool);
+    connect(MesonTools::instance(), &MesonTools::toolRemoved,
+            this, &ToolKitAspectWidget::removeTool);
+    connect(m_toolsComboBox, &QComboBox::currentIndexChanged,
+            this, &ToolKitAspectWidget::setCurrentToolIndex);
+}
+
+ToolKitAspectWidget::~ToolKitAspectWidget()
+{
+    delete m_toolsComboBox;
+    delete m_manageButton;
+}
+
+void ToolKitAspectWidget::addTool(const MesonTools::Tool_t &tool)
+{
+    QTC_ASSERT(tool, return );
+    if (isCompatible(tool))
+        this->m_toolsComboBox->addItem(tool->name(), tool->id().toSetting());
+}
+
+void ToolKitAspectWidget::removeTool(const MesonTools::Tool_t &tool)
+{
+    QTC_ASSERT(tool, return );
+    if (!isCompatible(tool))
+        return;
+    const int index = indexOf(tool->id());
+    QTC_ASSERT(index >= 0, return );
+    if (index == m_toolsComboBox->currentIndex())
+        setToDefault();
+    m_toolsComboBox->removeItem(index);
+}
+
+void ToolKitAspectWidget::setCurrentToolIndex(int index)
+{
+    const Utils::Id id = Utils::Id::fromSetting(m_toolsComboBox->itemData(index));
+    if (m_type == ToolType::Meson)
+        MesonToolKitAspect::setMesonTool(m_kit, id);
+    else
+        NinjaToolKitAspect::setNinjaTool(m_kit, id);
+}
+
+int ToolKitAspectWidget::indexOf(const Utils::Id &id)
+{
+    for (int i = 0; i < m_toolsComboBox->count(); ++i) {
+        if (id == Utils::Id::fromSetting(m_toolsComboBox->itemData(i)))
+            return i;
+    }
+    return -1;
+}
+
+bool ToolKitAspectWidget::isCompatible(const MesonTools::Tool_t &tool)
+{
+    return (m_type == ToolType::Meson && MesonTools::isMesonWrapper(tool))
+           || (m_type == ToolType::Ninja && MesonTools::isNinjaWrapper(tool));
+}
+
+void ToolKitAspectWidget::loadTools()
+{
+    for (const MesonTools::Tool_t &tool : MesonTools::tools()) {
+        addTool(tool);
+    }
+    refresh();
+    m_toolsComboBox->setEnabled(m_toolsComboBox->count());
+}
+
+void ToolKitAspectWidget::setToDefault()
+{
+    const MesonTools::Tool_t autoDetected = [this]() {
+        if (m_type == ToolType::Meson)
+            return std::dynamic_pointer_cast<ToolWrapper>(MesonTools::mesonWrapper());
+        return std::dynamic_pointer_cast<ToolWrapper>(MesonTools::ninjaWrapper());
+    }();
+
+    if (autoDetected) {
+        const auto index = indexOf(autoDetected->id());
+        m_toolsComboBox->setCurrentIndex(index);
+        setCurrentToolIndex(index);
+    } else {
+        m_toolsComboBox->setCurrentIndex(0);
+        setCurrentToolIndex(0);
+    }
+}
+
+} // namespace Internal
+} // namespace MesonProjectManager