void QGraphicsVideoItemPrivate::updateRects()
{
q_ptr->prepareGeometryChange();
if (nativeSize.isEmpty()) {
//this is necessary for item to receive the
//first paint event and configure video surface.
boundingRect = rect;
} else if (aspectRatioMode == Qt::IgnoreAspectRatio) {
boundingRect = rect;
sourceRect = QRectF(0, 0, 1, 1);
} else if (aspectRatioMode == Qt::KeepAspectRatio) {
QSizeF size = nativeSize;
size.scale(rect.size(), Qt::KeepAspectRatio);
boundingRect = QRectF(0, 0, size.width(), size.height());
boundingRect.moveCenter(rect.center());
sourceRect = QRectF(0, 0, 1, 1);
} else if (aspectRatioMode == Qt::KeepAspectRatioByExpanding) {
boundingRect = rect;
QSizeF size = rect.size();
size.scale(nativeSize, Qt::KeepAspectRatio);
sourceRect = QRectF(
0, 0, size.width() / nativeSize.width(), size.height() / nativeSize.height());
sourceRect.moveCenter(QPointF(0.5, 0.5));
}
}
void QGraphicsVideoItemPrivate::updateRects()
{
q_ptr->prepareGeometryChange();
QSizeF videoSize;
if (nativeSize.isEmpty()) {
videoSize = rect.size();
} else if (aspectRatioMode == Qt::IgnoreAspectRatio) {
videoSize = rect.size();
} else {
// KeepAspectRatio or KeepAspectRatioByExpanding
videoSize = nativeSize;
videoSize.scale(rect.size(), aspectRatioMode);
}
displayRect = QRectF(QPointF(0, 0), videoSize);
displayRect.moveCenter(rect.center());
boundingRect = displayRect.intersected(rect);
}