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| author | Olivier Goffart <ogoffart@trolltech.com> | 2009-08-17 07:45:01 (GMT) |
|---|---|---|
| committer | Olivier Goffart <ogoffart@trolltech.com> | 2009-08-17 07:47:19 (GMT) |
| commit | c09c9704a934000425a1f4a0db0c59f09eaee041 (patch) | |
| tree | 8d9ed67b28e65c89d7e5a21450ca310fd7d67006 /src/gui | |
| parent | caef9533a860941701745e221e719438ea6870d8 (diff) | |
| download | Qt-c09c9704a934000425a1f4a0db0c59f09eaee041.zip Qt-c09c9704a934000425a1f4a0db0c59f09eaee041.tar.gz Qt-c09c9704a934000425a1f4a0db0c59f09eaee041.tar.bz2 | |
Doc: Mention that destroying an item that belongs to a QGraphicsScene is inneficient
As the virtual functions (such as the boundingRect()) are not available
anymore in the destructor, the view has to refresh everything.
Reviewed-by: Alexis
Diffstat (limited to 'src/gui')
| -rw-r--r-- | src/gui/graphicsview/qgraphicsitem.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp index 74b8fe2..f454d7c 100644 --- a/src/gui/graphicsview/qgraphicsitem.cpp +++ b/src/gui/graphicsview/qgraphicsitem.cpp @@ -1183,6 +1183,9 @@ QGraphicsItem::QGraphicsItem(QGraphicsItemPrivate &dd, QGraphicsItem *parent, Destroys the QGraphicsItem and all its children. If this item is currently associated with a scene, the item will be removed from the scene before it is deleted. + + \note It is more efficient to remove the item from the QGraphicsScene before + destroying the item. */ QGraphicsItem::~QGraphicsItem() { |