diff options
| author | Gunnar Sletta <gunnar@trolltech.com> | 2009-12-11 11:11:45 (GMT) |
|---|---|---|
| committer | Gunnar Sletta <gunnar@trolltech.com> | 2009-12-11 11:11:45 (GMT) |
| commit | b42da2ec8677ce67ecd5d5f8188537e2a597da2a (patch) | |
| tree | e41b2eb449e0d0392e85603612836d935967f400 /src/gui/effects/qgraphicseffect.cpp | |
| parent | 664c78144754c499d07a95c3914fd34202bf4b98 (diff) | |
| parent | 343de9228ae65c36c4a9a45297d45cdeb04a8e44 (diff) | |
| download | Qt-b42da2ec8677ce67ecd5d5f8188537e2a597da2a.zip Qt-b42da2ec8677ce67ecd5d5f8188537e2a597da2a.tar.gz Qt-b42da2ec8677ce67ecd5d5f8188537e2a597da2a.tar.bz2 | |
Merge branch '4.6' of scm.dev.nokia.troll.no:qt/oslo-staging-2 into 4.6
Diffstat (limited to 'src/gui/effects/qgraphicseffect.cpp')
| -rw-r--r-- | src/gui/effects/qgraphicseffect.cpp | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/gui/effects/qgraphicseffect.cpp b/src/gui/effects/qgraphicseffect.cpp index 239e29c..d6cabaa 100644 --- a/src/gui/effects/qgraphicseffect.cpp +++ b/src/gui/effects/qgraphicseffect.cpp @@ -160,6 +160,10 @@ QRectF QGraphicsEffectSource::boundingRect(Qt::CoordinateSystem system) const /*! Returns the bounding rectangle of the source mapped to the given \a system. + Calling this function with Qt::DeviceCoordinates outside of + QGraphicsEffect::draw() will give undefined results, as there is no device + context available. + \sa draw() */ QRectF QGraphicsEffect::sourceBoundingRect(Qt::CoordinateSystem system) const @@ -348,6 +352,10 @@ QPixmap QGraphicsEffectSource::pixmap(Qt::CoordinateSystem system, QPoint *offse The returned pixmap is clipped to the current painter's device rectangle when \a system is Qt::DeviceCoordinates. + Calling this function with Qt::DeviceCoordinates outside of + QGraphicsEffect::draw() will give undefined results, as there is no device + context available. + \sa draw(), boundingRect() */ QPixmap QGraphicsEffect::sourcePixmap(Qt::CoordinateSystem system, QPoint *offset, QGraphicsEffect::PixmapPadMode mode) const @@ -398,8 +406,8 @@ QGraphicsEffect::~QGraphicsEffect() /*! Returns the effective bounding rectangle for this effect, i.e., the - bounding rectangle of the source, adjusted by any margins applied by - the effect itself. + bounding rectangle of the source in device coordinates, adjusted by + any margins applied by the effect itself. \sa boundingRectFor(), updateBoundingRect() */ @@ -413,7 +421,7 @@ QRectF QGraphicsEffect::boundingRect() const /*! Returns the effective bounding rectangle for this effect, given the - provided \a rect in the source's coordinate space. When writing + provided \a rect in the device coordinates. When writing you own custom effect, you must call updateBoundingRect() whenever any parameters are changed that may cause this this function to return a different value. |