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/***************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (directui@nokia.com)
**
** This file is part of duicompositor.
**
** If you have questions regarding the use of this file, please contact
** Nokia at directui@nokia.com.
**
** This library is free software; you can redistribute it and/or
** modify it 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.
**
****************************************************************************/
#ifndef DUICOMPOSITEMANAGER_H
#define DUICOMPOSITEMANAGER_H
#include <QApplication>
#include <QGLWidget>
class QGraphicsScene;
class DuiCompositeManagerPrivate;
class DuiCompAtoms;
/*!
* DuiCompositeManager is responsible for managing window events.
*
* It catches and redirects appropriate windows to offscreen pixmaps and
* creates a DuiTexturePixmapItem object from these windows and adds them
* to a QGraphicsScene. The manager also ensures the items are updated
* when their contents change and removes them from its control when they are
* destroyed.
*
*/
class DuiCompositeManager: public QApplication
{
Q_OBJECT
public:
/*!
* Initializes the compositing manager
*
* \param argc number of arguments passed from the command line
* \param argv argument of strings passed from the command line
*/
DuiCompositeManager(int &argc, char **argv);
/*!
* Cleans up resources
*/
~DuiCompositeManager();
/*! Prepare and start composite management. This function should get called
* after the window of this compositor is created and mapped to the screen
*/
void prepareEvents();
/*! Specify the QGLWidget used by the QGraphicsView to draw the items on
* the screen.
*
* \param glw The QGLWidget widget used in used by the scene's
* QGraphicsView viewport
*/
void setGLWidget(QGLWidget *glw);
/*!
* Reimplemented from QApplication::x11EventFilter() to catch X11 events
*/
virtual bool x11EventFilter(XEvent *event);
/*!
* Returns the scene where the items are rendered
*/
QGraphicsScene *scene();
/*!
* Specifies the toplevel window where the items are rendered. This window
* will reparented to the composite overlay window to ensure the compositor
* stays on top of all windows.
*
* \param window Window id of the toplevel window where the items are
* rendered. Typically, this will be the window id of a toplevel
* QGraphicsView widget where the items are drawn
*/
void setSurfaceWindow(Qt::HANDLE window);
/*!
* Redirects and manages existing windows as composited items
*/
void redirectWindows();
/*!
* Returns whether a Window is redirected or not
*
* \param w Window id of a window
*/
bool isRedirected(Qt::HANDLE window);
void topmostWindowsRaise();
public slots:
void enableCompositing();
void disableCompositing();
/*! Invoked remotely by DuiRmiClient to show a launch indicator
*
* \param timeout seconds elapsed to hide the launch indicator in case
* window does not yet appear.
*/
void showLaunchIndicator(int timeout);
void hideLaunchIndicator();
private:
DuiCompositeManagerPrivate *d;
friend class DuiCompositeWindow;
friend class DuiCompWindowAnimator;
};
#endif
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