diff options
Diffstat (limited to 'src/declarative/graphicsitems/qdeclarativeimage.cpp')
-rw-r--r-- | src/declarative/graphicsitems/qdeclarativeimage.cpp | 112 |
1 files changed, 65 insertions, 47 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativeimage.cpp b/src/declarative/graphicsitems/qdeclarativeimage.cpp index e90a4df..2c9bde5 100644 --- a/src/declarative/graphicsitems/qdeclarativeimage.cpp +++ b/src/declarative/graphicsitems/qdeclarativeimage.cpp @@ -458,84 +458,102 @@ QRectF QDeclarativeImage::boundingRect() const are always loaded asynchonously. */ +/*! + \qmlproperty bool Image::cache + \since Quick 1.1 + + Specifies whether the image should be cached. The default value is + true. Setting \a cache to false is useful when dealing with large images, + to make sure that they aren't cached at the expense of small 'ui element' images. +*/ + +/*! + \qmlproperty bool Image::mirror + \since Quick 1.1 + + This property holds whether the image should be horizontally inverted + (effectively displaying a mirrored image). + + The default value is false. +*/ + + void QDeclarativeImage::paint(QPainter *p, const QStyleOptionGraphicsItem *, QWidget *) { Q_D(QDeclarativeImage); if (d->pix.pixmap().isNull() ) return; - bool oldAA = p->testRenderHint(QPainter::Antialiasing); - bool oldSmooth = p->testRenderHint(QPainter::SmoothPixmapTransform); - if (d->smooth) - p->setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform, d->smooth); + int drawWidth = width(); + int drawHeight = height(); + bool doClip = false; + QTransform transform; + qreal widthScale = width() / qreal(d->pix.width()); + qreal heightScale = height() / qreal(d->pix.height()); if (width() != d->pix.width() || height() != d->pix.height()) { if (d->fillMode >= Tile) { - if (d->fillMode == Tile) { - p->drawTiledPixmap(QRectF(0,0,width(),height()), d->pix); - } else { - qreal widthScale = width() / qreal(d->pix.width()); - qreal heightScale = height() / qreal(d->pix.height()); - - QTransform scale; - if (d->fillMode == TileVertically) { - scale.scale(widthScale, 1.0); - QTransform old = p->transform(); - p->setWorldTransform(scale * old); - p->drawTiledPixmap(QRectF(0,0,d->pix.width(),height()), d->pix); - p->setWorldTransform(old); - } else { - scale.scale(1.0, heightScale); - QTransform old = p->transform(); - p->setWorldTransform(scale * old); - p->drawTiledPixmap(QRectF(0,0,width(),d->pix.height()), d->pix); - p->setWorldTransform(old); - } + if (d->fillMode == TileVertically) { + transform.scale(widthScale, 1.0); + drawWidth = d->pix.width(); + } else if (d->fillMode == TileHorizontally) { + transform.scale(1.0, heightScale); + drawHeight = d->pix.height(); } } else { - qreal widthScale = width() / qreal(d->pix.width()); - qreal heightScale = height() / qreal(d->pix.height()); - - QTransform scale; - if (d->fillMode == PreserveAspectFit) { if (widthScale <= heightScale) { heightScale = widthScale; - scale.translate(0, (height() - heightScale * d->pix.height()) / 2); + transform.translate(0, (height() - heightScale * d->pix.height()) / 2); } else if(heightScale < widthScale) { widthScale = heightScale; - scale.translate((width() - widthScale * d->pix.width()) / 2, 0); + transform.translate((width() - widthScale * d->pix.width()) / 2, 0); } } else if (d->fillMode == PreserveAspectCrop) { if (widthScale < heightScale) { widthScale = heightScale; - scale.translate((width() - widthScale * d->pix.width()) / 2, 0); + transform.translate((width() - widthScale * d->pix.width()) / 2, 0); } else if(heightScale < widthScale) { heightScale = widthScale; - scale.translate(0, (height() - heightScale * d->pix.height()) / 2); + transform.translate(0, (height() - heightScale * d->pix.height()) / 2); } } - if (clip()) { - p->save(); - p->setClipRect(QRectF(0, 0, d->mWidth, d->mHeight), Qt::IntersectClip); - } - scale.scale(widthScale, heightScale); - QTransform old = p->transform(); - p->setWorldTransform(scale * old); - p->drawPixmap(0, 0, d->pix); - p->setWorldTransform(old); - if (clip()) { - p->restore(); - } + transform.scale(widthScale, heightScale); + drawWidth = d->pix.width(); + drawHeight = d->pix.height(); + doClip = clip(); } - } else { - p->drawPixmap(0, 0, d->pix); } + QTransform oldTransform; + bool oldAA = p->testRenderHint(QPainter::Antialiasing); + bool oldSmooth = p->testRenderHint(QPainter::SmoothPixmapTransform); + if (d->smooth) + p->setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform, d->smooth); + if (doClip) { + p->save(); + p->setClipRect(QRectF(0, 0, d->mWidth, d->mHeight), Qt::IntersectClip); + } + if (d->mirror) + transform.translate(drawWidth, 0).scale(-1.0, 1.0); + if (!transform.isIdentity()) { + oldTransform = p->transform(); + p->setWorldTransform(transform * oldTransform); + } + + if (d->fillMode >= Tile) + p->drawTiledPixmap(QRectF(0, 0, drawWidth, drawHeight), d->pix); + else + p->drawPixmap(QRectF(0, 0, drawWidth, drawHeight), d->pix, QRectF(0, 0, drawWidth, drawHeight)); + if (d->smooth) { p->setRenderHint(QPainter::Antialiasing, oldAA); p->setRenderHint(QPainter::SmoothPixmapTransform, oldSmooth); } + if (doClip) + p->restore(); + if (!transform.isIdentity()) + p->setWorldTransform(oldTransform); } void QDeclarativeImage::pixmapChange() |