void ListItemCache::draw(QPainter * painter)
{
QRectF irect = sourceBoundingRect(Qt::LogicalCoordinates);
QRectF vrect = painter->clipPath().boundingRect();
if (vrect.intersects(irect)) {
QRectF newVisibleRect = irect.intersected(vrect);
QPixmap pixmap;
if (!QPixmapCache::find(m_cacheKey, &pixmap) ||
m_visibleRect.toRect() != newVisibleRect.toRect()) {
//qDebug() << "ListItemCache: caching" << m_visibleRect
// << "->" << newVisibleRect;
pixmap = QPixmap(sourceBoundingRect().toRect().size());
pixmap.fill(Qt::transparent);
QPainter pixmapPainter(&pixmap);
drawSource(&pixmapPainter);
pixmapPainter.end();
m_cacheKey = QPixmapCache::insert(pixmap);
m_visibleRect = newVisibleRect;
}
//qDebug() << "ListItemCache: blitting" << m_visibleRect;
painter->drawPixmap(0, 0, pixmap);
}
}
void PHISurfaceEffect::draw( QPainter *painter )
{
/*
QPoint offset;
QPixmap pixmap;
if ( sourceIsPixmap() ) {
// No point in drawing in device coordinates (pixmap will be scaled anyways).
pixmap=sourcePixmap( Qt::LogicalCoordinates, &offset );
} else {
// Draw pixmap in device coordinates to avoid pixmap scaling;
pixmap=sourcePixmap( Qt::DeviceCoordinates, &offset );
painter->setWorldTransform( QTransform() );
}
QImage img=pixmap.toImage();
img=PHI::getSurfacedImage( img, _yOff, _size );
painter->drawImage( offset, img );
*/
QRectF brect=sourceBoundingRect( Qt::LogicalCoordinates );
QImage img( static_cast<int>(brect.width()+1), static_cast<int>(brect.height()+_size+_yOff),
QImage::Format_ARGB32_Premultiplied );
QPainter pixPainter;
pixPainter.begin( &img );
pixPainter.setRenderHints( painter->renderHints() );
pixPainter.setCompositionMode( QPainter::CompositionMode_Clear );
pixPainter.fillRect( 0., 0., brect.width()+1., brect.height()+_size+_yOff+1, Qt::transparent );
pixPainter.setCompositionMode( QPainter::CompositionMode_SourceOver );
drawSource( &pixPainter );
QTransform t;
t.rotate( 180., Qt::XAxis );
t.translate( 0., (-brect.height()*2.)-_yOff+1. );
pixPainter.setTransform( t );
drawSource( &pixPainter );
pixPainter.resetTransform();
pixPainter.translate( 0., brect.height()+_yOff );
QLinearGradient gradient( 0., 0., 0., 1.0 );
gradient.setColorAt( 0., QColor( 0, 0, 0, 220 ) );
gradient.setColorAt( 0.78, QColor( 0, 0, 0, 30 ) );
gradient.setColorAt( 1., Qt::transparent );
gradient.setCoordinateMode( QGradient::ObjectBoundingMode );
pixPainter.setCompositionMode( QPainter::CompositionMode_DestinationIn );
pixPainter.fillRect( 0., 0., brect.width()+1, _size, gradient );
pixPainter.end();
painter->drawImage( 0, 0, img );
}
/*!
\reimp
*/
void QGraphicsOpacityEffect::draw(QPainter *painter)
{
Q_D(QGraphicsOpacityEffect);
// Transparent; nothing to draw.
if (d->isFullyTransparent)
return;
// Opaque; draw directly without going through a pixmap.
if (d->isFullyOpaque && !d->hasOpacityMask) {
drawSource(painter);
return;
}
QPoint offset;
Qt::CoordinateSystem system = sourceIsPixmap() ? Qt::LogicalCoordinates : Qt::DeviceCoordinates;
QPixmap pixmap = sourcePixmap(system, &offset, QGraphicsEffect::NoPad);
if (pixmap.isNull())
return;
painter->save();
painter->setOpacity(d->opacity);
if (d->hasOpacityMask) {
QPainter pixmapPainter(&pixmap);
pixmapPainter.setRenderHints(painter->renderHints());
pixmapPainter.setCompositionMode(QPainter::CompositionMode_DestinationIn);
if (system == Qt::DeviceCoordinates) {
QTransform worldTransform = painter->worldTransform();
worldTransform *= QTransform::fromTranslate(-offset.x(), -offset.y());
pixmapPainter.setWorldTransform(worldTransform);
pixmapPainter.fillRect(sourceBoundingRect(), d->opacityMask);
} else {
pixmapPainter.translate(-offset);
pixmapPainter.fillRect(pixmap.rect(), d->opacityMask);
}
}
if (system == Qt::DeviceCoordinates)
painter->setWorldTransform(QTransform());
painter->drawPixmap(offset, pixmap);
painter->restore();
}
