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-rw-r--r--src/gui/graphicsview/qgraphicsitem.cpp27
-rw-r--r--src/gui/graphicsview/qgraphicsitem_p.h4
-rw-r--r--tests/auto/qgraphicseffect/tst_qgraphicseffect.cpp26
3 files changed, 45 insertions, 12 deletions
diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index 364fdbb..b404692 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -1272,33 +1272,36 @@ void QGraphicsItemPrivate::setParentItemHelper(QGraphicsItem *newParent, const Q
Returns the bounding rect of this item's children (excluding itself).
*/
-void QGraphicsItemPrivate::childrenBoundingRectHelper(QTransform *x, QRectF *rect)
+void QGraphicsItemPrivate::childrenBoundingRectHelper(QTransform *x, QRectF *rect, QGraphicsItem *topMostEffectItem)
{
Q_Q(QGraphicsItem);
QRectF childrenRect;
QRectF *result = rect;
rect = &childrenRect;
+ const bool setTopMostEffectItem = !topMostEffectItem;
for (int i = 0; i < children.size(); ++i) {
QGraphicsItem *child = children.at(i);
QGraphicsItemPrivate *childd = child->d_ptr.data();
+ if (setTopMostEffectItem)
+ topMostEffectItem = child;
bool hasPos = !childd->pos.isNull();
if (hasPos || childd->transformData) {
// COMBINE
QTransform matrix = childd->transformToParent();
if (x)
matrix *= *x;
- *rect |= matrix.mapRect(child->d_ptr->effectiveBoundingRect());
+ *rect |= matrix.mapRect(child->d_ptr->effectiveBoundingRect(topMostEffectItem));
if (!childd->children.isEmpty())
- childd->childrenBoundingRectHelper(&matrix, rect);
+ childd->childrenBoundingRectHelper(&matrix, rect, topMostEffectItem);
} else {
if (x)
- *rect |= x->mapRect(child->d_ptr->effectiveBoundingRect());
+ *rect |= x->mapRect(child->d_ptr->effectiveBoundingRect(topMostEffectItem));
else
- *rect |= child->d_ptr->effectiveBoundingRect();
+ *rect |= child->d_ptr->effectiveBoundingRect(topMostEffectItem);
if (!childd->children.isEmpty())
- childd->childrenBoundingRectHelper(x, rect);
+ childd->childrenBoundingRectHelper(x, rect, topMostEffectItem);
}
}
@@ -2804,6 +2807,8 @@ QRectF QGraphicsItemPrivate::effectiveBoundingRect(const QRectF &rect) const
Q_Q(const QGraphicsItem);
QGraphicsEffect *effect = graphicsEffect;
if (scene && effect && effect->isEnabled()) {
+ if (scene->d_func()->views.isEmpty())
+ return effect->boundingRectFor(rect);
QRectF sceneRect = q->mapRectToScene(rect);
QRectF sceneEffectRect;
foreach (QGraphicsView *view, scene->views()) {
@@ -2827,12 +2832,12 @@ QRectF QGraphicsItemPrivate::effectiveBoundingRect(const QRectF &rect) const
\sa boundingRect()
*/
-QRectF QGraphicsItemPrivate::effectiveBoundingRect() const
+QRectF QGraphicsItemPrivate::effectiveBoundingRect(QGraphicsItem *topMostEffectItem) const
{
#ifndef QT_NO_GRAPHICSEFFECT
Q_Q(const QGraphicsItem);
QRectF brect = effectiveBoundingRect(q_ptr->boundingRect());
- if (ancestorFlags & QGraphicsItemPrivate::AncestorClipsChildren)
+ if (ancestorFlags & QGraphicsItemPrivate::AncestorClipsChildren || topMostEffectItem == q)
return brect;
const QGraphicsItem *effectParent = parent;
@@ -2843,8 +2848,10 @@ QRectF QGraphicsItemPrivate::effectiveBoundingRect() const
const QRectF effectRectInParentSpace = effectParent->d_ptr->effectiveBoundingRect(brectInParentSpace);
brect = effectParent->mapRectToItem(q, effectRectInParentSpace);
}
- if (effectParent->d_ptr->ancestorFlags & QGraphicsItemPrivate::AncestorClipsChildren)
+ if (effectParent->d_ptr->ancestorFlags & QGraphicsItemPrivate::AncestorClipsChildren
+ || topMostEffectItem == effectParent) {
return brect;
+ }
effectParent = effectParent->d_ptr->parent;
}
@@ -4719,7 +4726,7 @@ QRectF QGraphicsItem::childrenBoundingRect() const
return d_ptr->childrenBoundingRect;
d_ptr->childrenBoundingRect = QRectF();
- d_ptr->childrenBoundingRectHelper(0, &d_ptr->childrenBoundingRect);
+ d_ptr->childrenBoundingRectHelper(0, &d_ptr->childrenBoundingRect, 0);
d_ptr->dirtyChildrenBoundingRect = 0;
return d_ptr->childrenBoundingRect;
}
diff --git a/src/gui/graphicsview/qgraphicsitem_p.h b/src/gui/graphicsview/qgraphicsitem_p.h
index bc5e5ad..77e4054 100644
--- a/src/gui/graphicsview/qgraphicsitem_p.h
+++ b/src/gui/graphicsview/qgraphicsitem_p.h
@@ -300,10 +300,10 @@ public:
QDeclarativeListProperty<QGraphicsObject> childrenList();
void setParentItemHelper(QGraphicsItem *parent, const QVariant *newParentVariant,
const QVariant *thisPointerVariant);
- void childrenBoundingRectHelper(QTransform *x, QRectF *rect);
+ void childrenBoundingRectHelper(QTransform *x, QRectF *rect, QGraphicsItem *topMostEffectItem);
void initStyleOption(QStyleOptionGraphicsItem *option, const QTransform &worldTransform,
const QRegion &exposedRegion, bool allItems = false) const;
- QRectF effectiveBoundingRect() const;
+ QRectF effectiveBoundingRect(QGraphicsItem *topMostEffectItem = 0) const;
QRectF sceneEffectiveBoundingRect() const;
QRectF effectiveBoundingRect(const QRectF &rect) const;
diff --git a/tests/auto/qgraphicseffect/tst_qgraphicseffect.cpp b/tests/auto/qgraphicseffect/tst_qgraphicseffect.cpp
index 985d466..07fa630 100644
--- a/tests/auto/qgraphicseffect/tst_qgraphicseffect.cpp
+++ b/tests/auto/qgraphicseffect/tst_qgraphicseffect.cpp
@@ -288,6 +288,32 @@ void tst_QGraphicsEffect::boundingRect2()
// Disable ItemClipsChildrenToShape; effect's bounding rect is no longer clipped.
child->setFlag(QGraphicsItem::ItemClipsChildrenToShape, false);
QCOMPARE(effect->boundingRect(), effect->boundingRectFor(childRect | grandChildRect));
+
+ // Add root item to a scene, do the same tests as above. Results should be the same.
+ QGraphicsScene scene;
+ scene.addItem(root);
+
+ child->setFlag(QGraphicsItem::ItemClipsChildrenToShape);
+ QCOMPARE(effect->boundingRect(), effect->boundingRectFor(childRect));
+
+ child->setFlag(QGraphicsItem::ItemClipsChildrenToShape, false);
+ QCOMPARE(effect->boundingRect(), effect->boundingRectFor(childRect | grandChildRect));
+
+ // Now add the scene to a view, results should be the same.
+ QGraphicsView view(&scene);
+
+ child->setFlag(QGraphicsItem::ItemClipsChildrenToShape);
+ QCOMPARE(effect->boundingRect(), effect->boundingRectFor(childRect));
+
+ child->setFlag(QGraphicsItem::ItemClipsChildrenToShape, false);
+ QCOMPARE(effect->boundingRect(), effect->boundingRectFor(childRect | grandChildRect));
+
+ CustomEffect *childEffect = new CustomEffect;
+ child->setGraphicsEffect(childEffect);
+ QCOMPARE(effect->boundingRect(), effect->boundingRectFor(childEffect->boundingRectFor(childRect | grandChildRect)));
+
+ child->setGraphicsEffect(0);
+ QCOMPARE(effect->boundingRect(), effect->boundingRectFor(childRect | grandChildRect));
}
void tst_QGraphicsEffect::draw()
generated by cgit v0.12 at 2024-11-16 12:40:33 (GMT)