Send QMeeGoSwitchEvent to toplevel widgets before switching graphics system.

Merge-request: 926
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>

4 files changed, 142 insertions, 2 deletions

diff --git a/tools/qmeegographicssystemhelper/qmeegographicssystemhelper.cpp b/tools/qmeegographicssystemhelper/qmeegographicssystemhelper.cpp
index d348e70..b660eb3 100644
--- a/tools/qmeegographicssystemhelper/qmeegographicssystemhelper.cpp
+++ b/tools/qmeegographicssystemhelper/qmeegographicssystemhelper.cpp
@@ -46,6 +46,7 @@
 #include <private/qgraphicssystem_runtime_p.h>
 #include <private/qpixmap_raster_p.h>
 #include "qmeegoruntime.h"
+#include "qmeegoswitchevent.h"
 
 QString QMeeGoGraphicsSystemHelper::runningGraphicsSystemName()
 {
@@ -81,8 +82,16 @@ void QMeeGoGraphicsSystemHelper::switchToMeeGo()
     if (QApplicationPrivate::instance()->graphics_system_name != QLatin1String("runtime"))
         qWarning("Can't switch to meego - switching only supported with 'runtime' graphics system.");
     else {
+        QMeeGoSwitchEvent willSwitchEvent(QLatin1String("meego"), QMeeGoSwitchEvent::WillSwitch);
+        foreach (QWidget *widget, QApplication::topLevelWidgets())
+            QCoreApplication::sendEvent(widget, &willSwitchEvent);
+
         QApplication *app = static_cast<QApplication *>(QCoreApplication::instance());
         app->setGraphicsSystem(QLatin1String("meego"));
+
+        QMeeGoSwitchEvent didSwitchEvent(QLatin1String("meego"), QMeeGoSwitchEvent::DidSwitch);
+        foreach (QWidget *widget, QApplication::topLevelWidgets())
+            QCoreApplication::sendEvent(widget, &didSwitchEvent);
     }
 }
 
@@ -94,8 +103,16 @@ void QMeeGoGraphicsSystemHelper::switchToRaster()
     if (QApplicationPrivate::instance()->graphics_system_name != QLatin1String("runtime"))
         qWarning("Can't switch to raster - switching only supported with 'runtime' graphics system.");
     else {
+        QMeeGoSwitchEvent willSwitchEvent(QLatin1String("raster"), QMeeGoSwitchEvent::WillSwitch);
+        foreach (QWidget *widget, QApplication::topLevelWidgets())
+            QCoreApplication::sendEvent(widget, &willSwitchEvent);
+
         QApplication *app = static_cast<QApplication *>(QCoreApplication::instance());
         app->setGraphicsSystem(QLatin1String("raster"));
+
+        QMeeGoSwitchEvent didSwitchEvent(QLatin1String("raster"), QMeeGoSwitchEvent::DidSwitch);
+        foreach (QWidget *widget, QApplication::topLevelWidgets())
+            QCoreApplication::sendEvent(widget, &didSwitchEvent);
     }
 }
 
diff --git a/tools/qmeegographicssystemhelper/qmeegographicssystemhelper.pro b/tools/qmeegographicssystemhelper/qmeegographicssystemhelper.pro
index 161a31b..360847e 100644
--- a/tools/qmeegographicssystemhelper/qmeegographicssystemhelper.pro
+++ b/tools/qmeegographicssystemhelper/qmeegographicssystemhelper.pro
@@ -6,5 +6,5 @@ include(../../src/qbase.pri)
 QT += gui
 INCLUDEPATH += '../../src/plugins/graphicssystems/meego'
 
-HEADERS = qmeegographicssystemhelper.h qmeegooverlaywidget.h qmeegolivepixmap.h qmeegoruntime.h qmeegolivepixmap_p.h qmeegofencesync.h qmeegofencesync_p.h
-SOURCES = qmeegographicssystemhelper.cpp qmeegooverlaywidget.cpp qmeegoruntime.cpp qmeegolivepixmap.cpp qmeegographicssystemhelper.h qmeegooverlaywidget.h qmeegolivepixmap.h qmeegoruntime.h qmeegolivepixmap_p.h qmeegofencesync.h qmeegofencesync_p.h qmeegofencesync.cpp
+HEADERS = qmeegographicssystemhelper.h qmeegooverlaywidget.h qmeegolivepixmap.h qmeegoruntime.h qmeegolivepixmap_p.h qmeegofencesync.h qmeegofencesync_p.h qmeegoswitchevent.h
+SOURCES = qmeegographicssystemhelper.cpp qmeegooverlaywidget.cpp qmeegoruntime.cpp qmeegolivepixmap.cpp qmeegographicssystemhelper.h qmeegooverlaywidget.h qmeegolivepixmap.h qmeegoruntime.h qmeegolivepixmap_p.h qmeegofencesync.h qmeegofencesync_p.h qmeegofencesync.cpp qmeegoswitchevent.cpp qmeegoswitchevent.h
diff --git a/tools/qmeegographicssystemhelper/qmeegoswitchevent.cpp b/tools/qmeegographicssystemhelper/qmeegoswitchevent.cpp
new file mode 100644
index 0000000..b136ce8
--- /dev/null
+++ b/tools/qmeegographicssystemhelper/qmeegoswitchevent.cpp
@@ -0,0 +1,58 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qmeegoswitchevent.h"
+
+QMeeGoSwitchEvent::QMeeGoSwitchEvent(const QString &graphicsSystemName, QMeeGoSwitchEvent::State s) : QEvent((QEvent::Type) QMeeGoSwitchEvent::SwitchEvent)
+{
+    name = graphicsSystemName;
+    switchState = s;
+}
+
+QString QMeeGoSwitchEvent::graphicsSystemName() const
+{
+    return name;
+}
+
+QMeeGoSwitchEvent::State QMeeGoSwitchEvent::state() const
+{
+    return switchState;
+}
\ No newline at end of file
diff --git a/tools/qmeegographicssystemhelper/qmeegoswitchevent.h b/tools/qmeegographicssystemhelper/qmeegoswitchevent.h
new file mode 100644
index 0000000..a67c6c4
--- /dev/null
+++ b/tools/qmeegographicssystemhelper/qmeegoswitchevent.h
@@ -0,0 +1,65 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QEvent>
+#include <QString>
+
+class QMeeGoSwitchEvent : public QEvent
+{
+public:
+    enum State {
+        WillSwitch,
+        DidSwitch
+    };
+
+    enum Type {
+        SwitchEvent = QEvent::User + 1024
+    };
+
+    QMeeGoSwitchEvent(const QString &graphicsSystemName, State s);
+    QString graphicsSystemName() const;
+    State state() const;
+
+
+private:
+    QString name;
+    State switchState;
+};