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#include <qimage.h>
#include <private/qblittable_p.h>
class QImageBlittable : public QBlittable
{
public:
QImageBlittable(QImage *image, bool deleteImage)
: QBlittable(image->size(), QBlittable::Capabilities(QBlittable::SolidRectCapability
|QBlittable::SourcePixmapCapability
|QBlittable::SourceOverPixmapCapability
|QBlittable::SourceOverScaledPixmapCapability)),
m_image(image), m_deleteImage(deleteImage)
{
}
~QImageBlittable() {
if (m_deleteImage)
delete m_image;
}
void fillRect(const QRectF &rect, const QColor &color)
{
QPainter p(lock());
p.fillRect(rect,color);
}
void drawPixmap(const QRectF &rect, const QPixmap &pixmap, const QRectF &source)
{
//here it is possible to do a pixmap.pixmapData()->buffer()
//but is like this to show how to get the the blitter
QPixmapData *data = pixmap.pixmapData();
Q_ASSERT(data->width() && data->height());
Q_ASSERT(data->classId() == QPixmapData::BlitterClass);
QBlittablePixmapData *blittableData = static_cast<QBlittablePixmapData*>(data);
QPainter p(lock());
p.drawImage(rect, *blittableData->blittable()->lock(),source);
}
protected:
QImage *doLock() { return m_image; }
void doUnlock() { }
private:
QImage *m_image;
bool m_deleteImage;
};
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