diff options
| -rw-r--r-- | src/gui/effects/qgraphicseffect.cpp | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/gui/effects/qgraphicseffect.cpp b/src/gui/effects/qgraphicseffect.cpp index 10ef5ea..7d1d03d 100644 --- a/src/gui/effects/qgraphicseffect.cpp +++ b/src/gui/effects/qgraphicseffect.cpp @@ -699,12 +699,17 @@ void QGraphicsColorizeEffect::draw(QPainter *painter) if (sourceIsPixmap()) { // No point in drawing in device coordinates (pixmap will be scaled anyways). const QPixmap pixmap = sourcePixmap(Qt::LogicalCoordinates, &offset, NoPad); - d->filter->draw(painter, offset, pixmap); + if (!pixmap.isNull()) + d->filter->draw(painter, offset, pixmap); + return; } // Draw pixmap in deviceCoordinates to avoid pixmap scaling. const QPixmap pixmap = sourcePixmap(Qt::DeviceCoordinates, &offset); + if (pixmap.isNull()) + return; + QTransform restoreTransform = painter->worldTransform(); painter->setWorldTransform(QTransform()); d->filter->draw(painter, offset, pixmap); @@ -858,9 +863,11 @@ void QGraphicsBlurEffect::draw(QPainter *painter) if (painter->paintEngine()->type() == QPaintEngine::OpenGL2) mode = NoPad; - // Draw pixmap in device coordinates to avoid pixmap scaling. QPoint offset; QPixmap pixmap = sourcePixmap(Qt::LogicalCoordinates, &offset, mode); + if (pixmap.isNull()) + return; + d->filter->draw(painter, offset, pixmap); } @@ -1047,6 +1054,9 @@ void QGraphicsDropShadowEffect::draw(QPainter *painter) // Draw pixmap in device coordinates to avoid pixmap scaling. QPoint offset; const QPixmap pixmap = sourcePixmap(Qt::DeviceCoordinates, &offset, mode); + if (pixmap.isNull()) + return; + QTransform restoreTransform = painter->worldTransform(); painter->setWorldTransform(QTransform()); d->filter->draw(painter, offset, pixmap); |