/****************************************************************************
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** This file is part of the plugins of the Qt Toolkit.
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** This file contains pre-release code and may not be distributed.
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** Beta Release License Agreement.
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** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
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****************************************************************************/

#ifndef QDIRECFBWINDOWSURFACE_H
#define QDIRECFBWINDOWSURFACE_H

#include "qdirectfbpaintengine.h"
#include "qdirectfbpaintdevice.h"
#include "qdirectfbscreen.h"

#include <private/qpaintengine_raster_p.h>
#include <private/qwindowsurface_qws_p.h>
#include <directfb.h>

#ifdef QT_DIRECTFB_TIMING
#include <qdatetime.h>
#endif

QT_BEGIN_HEADER

QT_MODULE(Gui)

class QDirectFBWindowSurface : public QWSWindowSurface, public QDirectFBPaintDevice
{
public:
    QDirectFBWindowSurface(DFBSurfaceFlipFlags flipFlags, QDirectFBScreen *scr);
    QDirectFBWindowSurface(DFBSurfaceFlipFlags flipFlags, QDirectFBScreen *scr, QWidget *widget);
    ~QDirectFBWindowSurface();

#ifdef QT_DIRECTFB_WM
    void raise();
#endif
    bool isValid() const;

    void setGeometry(const QRect &rect);

    QString key() const { return QLatin1String("directfb"); }
    QByteArray permanentState() const;
    void setPermanentState(const QByteArray &state);

    bool scroll(const QRegion &area, int dx, int dy);

    bool move(const QPoint &offset);

    QImage image() const { return QImage(); }
    QPaintDevice *paintDevice() { return this; }

    void flush(QWidget *widget, const QRegion &region, const QPoint &offset);

    void beginPaint(const QRegion &);
    void endPaint(const QRegion &);

    QImage *buffer(const QWidget *widget);
private:
#ifdef QT_DIRECTFB_WM
    void createWindow();
    IDirectFBWindow *dfbWindow;
    QDirectFBWindowSurface *sibling;
#endif

#ifdef QT_NO_DIRECTFB_WM
    enum Mode {
        Primary,
        Offscreen
    } mode;
#endif

    QList<QImage*> bufferImages;
    DFBSurfaceFlipFlags flipFlags;
    bool boundingRectFlip;
#ifdef QT_DIRECTFB_TIMING
    int frames;
    QTime timer;
#endif
};

QT_END_HEADER

#endif // QDIRECFBWINDOWSURFACE_H