void QBlitterPaintEnginePrivate::clipAndDrawPixmap(const QRectF &clip,
const QRectF &target,
const QPixmap &pm,
const QRectF &sr)
{
QRectF intersectedRect = clip.intersected(target);
if (intersectedRect.isEmpty())
return;
QRectF source = sr;
if (intersectedRect.size() != target.size()) {
if (sr.size() == target.size()) {
// no resize
qreal deltaTop = target.top() - intersectedRect.top();
qreal deltaLeft = target.left() - intersectedRect.left();
qreal deltaBottom = target.bottom() - intersectedRect.bottom();
qreal deltaRight = target.right() - intersectedRect.right();
source.adjust(-deltaLeft, -deltaTop, -deltaRight, -deltaBottom);
} else {
// resize case
qreal hFactor = sr.size().width() / target.size().width();
qreal vFactor = sr.size().height() / target.size().height();
qreal deltaTop = (target.top() - intersectedRect.top()) * vFactor;
qreal deltaLeft = (target.left() - intersectedRect.left()) * hFactor;
qreal deltaBottom = (target.bottom() - intersectedRect.bottom()) * vFactor;
qreal deltaRight = (target.right() - intersectedRect.right()) * hFactor;
source.adjust(-deltaLeft, -deltaTop, -deltaRight, -deltaBottom);
}
}
pmData->unmarkRasterOverlay(intersectedRect);
pmData->blittable()->drawPixmap(intersectedRect, pm, source);
}
void QBlitterPaintEnginePrivate::fillRect(const QRectF &rect, const QColor &color)
{
Q_Q(QBlitterPaintEngine);
pmData->unmarkRasterOverlay(rect);
QRectF targetRect = rect;
if (hasXForm)
targetRect = q->state()->matrix.mapRect(rect);
const QClipData *clipData = clip();
if (clipData) {
if (clipData->hasRectClip) {
unlock();
pmData->blittable()->fillRect(targetRect & clipData->clipRect, color);
} else if (clipData->hasRegionClip) {
QVector<QRect> rects = clipData->clipRegion.rects();
for (int i = 0; i < rects.size(); ++i) {
QRect intersectRect = rects.at(i).intersected(targetRect.toRect());
if (!intersectRect.isEmpty()) {
unlock();
pmData->blittable()->fillRect(intersectRect, color);
}
}
}
} else {
if (targetRect.x() >= 0 && targetRect.y() >= 0
&& targetRect.width() <= q->paintDevice()->width()
&& targetRect.height() <= q->paintDevice()->height()) {
unlock();
pmData->blittable()->fillRect(targetRect, color);
} else {
QRectF deviceRect(0, 0, q->paintDevice()->width(), q->paintDevice()->height());
unlock();
pmData->blittable()->fillRect(deviceRect & targetRect, color);
}
}
}
/**
* This is borrowing the reference of the QDirectFbBlitter. You may not store this
* pointer as a class member but must only use it locally.
*/
IDirectFBSurface *QDirectFbConvenience::dfbSurfaceForPlatformPixmap(QPlatformPixmap *handle)
{
QBlittablePlatformPixmap *blittablePmData = static_cast<QBlittablePlatformPixmap *>(handle);
if (blittablePmData) {
QBlittable *blittable = blittablePmData->blittable();
QDirectFbBlitter *dfbBlitter = static_cast<QDirectFbBlitter *>(blittable);
return dfbBlitter->m_surface.data();
}
return 0;
}
inline void QBlitterPaintEnginePrivate::unlock()
{
pmData->blittable()->unlock();
}
inline void QBlitterPaintEnginePrivate::lock()
{
if (!pmData->blittable()->isLocked())
rasterBuffer->prepare(pmData->buffer());
}
