qbbrasterwindowsurface.h

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#ifndef QBBRASTERWINDOWSURFACE_H
#define QBBRASTERWINDOWSURFACE_H

#include <QtGui/private/qwindowsurface_p.h>

#include <screen/screen.h>

QT_BEGIN_NAMESPACE

class QBBWindow;

class QBBRasterWindowSurface : public QWindowSurface
{
public:
    QBBRasterWindowSurface(QWidget *window);
    virtual ~QBBRasterWindowSurface();

    virtual QPaintDevice *paintDevice();
    virtual void flush(QWidget *widget, const QRegion &region, const QPoint &offset);
    virtual void resize(const QSize &size);
    virtual bool scroll(const QRegion &area, int dx, int dy);
    virtual void beginPaint(const QRegion &region);
    virtual void endPaint(const QRegion &region);

    virtual QPixmap grabWidget(const QWidget *widget, const QRect &rectangle) const;

private:
    class ScrollOp {
    public:
        ScrollOp(const QRegion& a, int x, int y) : totalArea(a), dx(x), dy(y) {}
        QRegion totalArea;
        int dx;
        int dy;
    };

    mutable bool mUseFrontBuffer;

    QBBWindow *mPlatformWindow;
    QList<ScrollOp> mScrollOpList;
};

QT_END_NAMESPACE

#endif // QBBRASTERWINDOWSURFACE_H