Merge branch '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2 into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2:
  Check correctly before including SSE4.2 header.
  Fixed crash when destroying QGLWidget
  Prevent crash in GL 2 engine when stroking null rectangle.
  Compile fix.
  Documentation update for new switching events.
  Send QMeeGoSwitchEvent to toplevel widgets before switching graphics system.
  Doc: Fixing typo
  Fix possible missing glyphs in text when using GL engine

1 files changed, 89 insertions, 0 deletions

diff --git a/tools/qmeegographicssystemhelper/qmeegoswitchevent.h b/tools/qmeegographicssystemhelper/qmeegoswitchevent.h
new file mode 100644
index 0000000..2d8371e
--- /dev/null
+++ b/tools/qmeegographicssystemhelper/qmeegoswitchevent.h
@@ -0,0 +1,89 @@
+/****************************************************************************
+**
+** 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>
+
+//! A custom event representing a graphics system switch.
+/*!
+ This event is sent two times -- before the actual switch and after the switch.
+ The current mode of the event can be detected by looking at the State of the
+ event.
+
+ The end-user application can use the event to drop it's own allocated GL resources
+ when going to software mode.
+*/
+
+class QMeeGoSwitchEvent : public QEvent
+{
+public:
+
+    //! The state represented by this event.
+    enum State {
+        WillSwitch,
+        DidSwitch
+    };
+
+    //! The event type id to use to detect this event.
+    enum Type {
+        SwitchEvent = QEvent::User + 1024
+    };
+
+    //! Constructor for the event.
+    /*!
+     Creates a new event with the given name and the given state.
+    */
+    QMeeGoSwitchEvent(const QString &graphicsSystemName, State s);
+
+    //! Returns the name of the target graphics system.
+    /*!
+     Depending on the state, the name represents the system we're about to swtich to,
+     or the system we just switched to.
+    */
+    QString graphicsSystemName() const;
+
+    //! Returns the state represented by this event.
+    State state() const;
+
+private:
+    QString name;
+    State switchState;
+};