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support all tiling options of Image

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This commit is contained in:
Marco Martin 2011-11-14 16:34:46 +01:00
parent a347b2ec04
commit b5f6d6ff33
1 changed files with 16 additions and 17 deletions
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33
declarativeimports/qtextracomponents/qpixmapitem.cpp
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@ -96,36 +96,36 @@ void QPixmapItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *optio
if (m_pixmap.isNull()) {
return;
}
//do without painter save, faster and the support can be compiled out
const bool wasAntiAlias = painter->testRenderHint(QPainter::Antialiasing);
const bool wasSmoothTransform = painter->testRenderHint(QPainter::SmoothPixmapTransform);
painter->save();
painter->setRenderHint(QPainter::Antialiasing, m_smooth);
painter->setRenderHint(QPainter::SmoothPixmapTransform, m_smooth);
QRect destRect;
switch (m_fillMode) {
case PreserveAspectFit: {
QRect minimumRect = m_pixmap.rect().intersected(boundingRect().toRect());
const qreal scale = qMin(m_pixmap.width()/minimumRect.width(), m_pixmap.height()/minimumRect.height());
destRect = QRect(QPoint(0, 0), QSize(m_pixmap.width()*scale, m_pixmap.height()*scale));
QSize scaled = m_pixmap.size();
scaled.scale(boundingRect().size().toSize(), Qt::KeepAspectRatio);
destRect = QRect(QPoint(0, 0), scaled);
break;
}
case PreserveAspectCrop: {
QRect minimumRect = m_pixmap.rect().intersected(boundingRect().toRect());
const qreal scale = qMax(m_pixmap.width()/minimumRect.width(), m_pixmap.height()/minimumRect.height());
destRect = QRect(QPoint(0, 0), QSize(m_pixmap.width()*scale, m_pixmap.height()*scale));
painter->setClipRect(boundingRect(), Qt::IntersectClip);
QSize scaled = m_pixmap.size();
scaled.scale(boundingRect().size().toSize(), Qt::KeepAspectRatioByExpanding);
destRect = QRect(QPoint(0, 0), scaled);
break;
}
case TileVertically: {
QRect minimumRect = m_pixmap.rect().intersected(boundingRect().toRect());
const qreal scale = m_pixmap.width()/minimumRect.width();
destRect = QRect(QPoint(0, 0), QSize(m_pixmap.width()*scale, m_pixmap.height()));
painter->scale(width()/(qreal)m_pixmap.width(), 1);
destRect = boundingRect().toRect();
destRect.setWidth(destRect.width() / (width()/(qreal)m_pixmap.width()));
break;
}
case TileHorizontally: {
QRect minimumRect = m_pixmap.rect().intersected(boundingRect().toRect());
const qreal scale = m_pixmap.height()/minimumRect.height();
destRect = QRect(QPoint(0, 0), QSize(m_pixmap.width(), m_pixmap.height()*scale));
painter->scale(1, height()/(qreal)m_pixmap.height());
destRect = boundingRect().toRect();
destRect.setHeight(destRect.height() / (height()/(qreal)m_pixmap.height()));
break;
}
case Stretch:
@ -140,8 +140,7 @@ void QPixmapItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *optio
painter->drawPixmap(destRect, m_pixmap, m_pixmap.rect());
}
painter->setRenderHint(QPainter::Antialiasing, wasAntiAlias);
painter->setRenderHint(QPainter::SmoothPixmapTransform, wasSmoothTransform);
painter->restore();
}