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#ifndef QDIRECTFBPAINTDEVICE_H
#define QDIRECTFBPAINTDEVICE_H

#include <private/qpaintengine_raster_p.h>
#include <directfb.h>
#include "qdirectfbscreen.h"

QT_BEGIN_HEADER

QT_MODULE(Gui)

// Inherited by both window surface and pixmap
class QDirectFBPaintDevice : public QCustomRasterPaintDevice
{
public:
    ~QDirectFBPaintDevice();

    IDirectFBSurface *directFBSurface() const;

    void lockDirectFB(uint flags);
    void unlockDirectFB();

    // Reimplemented from QCustomRasterPaintDevice:
    void* memory() const;
    QImage::Format format() const;
    int bytesPerLine() const;
    QSize size() const;
    int metric(QPaintDevice::PaintDeviceMetric metric) const;
    uint lockFlags() const { return lock; }
protected:
    // Shouldn't create QDirectFBPaintDevice by itself but only sub-class it:
    QDirectFBPaintDevice(QDirectFBScreen *scr = QDirectFBScreen::instance())
        : QCustomRasterPaintDevice(0),
          dfbSurface(0),
          lockedImage(0),
          screen(scr),
          lock(0),
          mem(0)
    {}

    inline int dotsPerMeterX() const
    {
        return (screen->deviceWidth() * 1000) / screen->physicalWidth();
    }
    inline int dotsPerMeterY() const
    {
        return (screen->deviceHeight() * 1000) / screen->physicalHeight();
    }

    IDirectFBSurface *dfbSurface;
    QImage *lockedImage;
    QDirectFBScreen *screen;
    int bpl;
    uint lock;
    uchar *mem;
private:
    Q_DISABLE_COPY(QDirectFBPaintDevice)
};

QT_END_HEADER

#endif //QDIRECTFBPAINTDEVICE_H