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-rw-r--r--src/gui/graphicsview/qgraphicsscene.cpp86
1 files changed, 63 insertions, 23 deletions
diff --git a/src/gui/graphicsview/qgraphicsscene.cpp b/src/gui/graphicsview/qgraphicsscene.cpp
index 182a3f5..cea723c 100644
--- a/src/gui/graphicsview/qgraphicsscene.cpp
+++ b/src/gui/graphicsview/qgraphicsscene.cpp
@@ -1,6 +1,6 @@
/****************************************************************************
**
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
@@ -292,6 +292,7 @@ QGraphicsScenePrivate::QGraphicsScenePrivate()
processDirtyItemsEmitted(false),
selectionChanging(0),
needSortTopLevelItems(true),
+ unpolishedItemsModified(true),
holesInTopLevelSiblingIndex(false),
topLevelSequentialOrdering(true),
scenePosDescendantsUpdatePending(false),
@@ -428,12 +429,12 @@ void QGraphicsScenePrivate::unregisterTopLevelItem(QGraphicsItem *item)
*/
void QGraphicsScenePrivate::_q_polishItems()
{
- QSet<QGraphicsItem *>::Iterator it;
+ QSet<QGraphicsItem *>::Iterator it = unpolishedItems.begin();
const QVariant booleanTrueVariant(true);
while (!unpolishedItems.isEmpty()) {
- it = unpolishedItems.begin();
QGraphicsItem *item = *it;
- unpolishedItems.erase(it);
+ it = unpolishedItems.erase(it);
+ unpolishedItemsModified = false;
if (!item->d_ptr->explicitlyHidden) {
item->itemChange(QGraphicsItem::ItemVisibleChange, booleanTrueVariant);
item->itemChange(QGraphicsItem::ItemVisibleHasChanged, booleanTrueVariant);
@@ -442,6 +443,8 @@ void QGraphicsScenePrivate::_q_polishItems()
QEvent event(QEvent::Polish);
QApplication::sendEvent((QGraphicsWidget *)item, &event);
}
+ if (unpolishedItemsModified)
+ it = unpolishedItems.begin();
}
}
@@ -636,6 +639,7 @@ void QGraphicsScenePrivate::removeItemHelper(QGraphicsItem *item)
hoverItems.removeAll(item);
cachedItemsUnderMouse.removeAll(item);
unpolishedItems.remove(item);
+ unpolishedItemsModified = true;
resetDirtyItem(item);
//We remove all references of item from the sceneEventFilter arrays
@@ -1132,8 +1136,9 @@ bool QGraphicsScenePrivate::filterEvent(QGraphicsItem *item, QEvent *event)
bool QGraphicsScenePrivate::sendEvent(QGraphicsItem *item, QEvent *event)
{
if (QGraphicsObject *object = item->toGraphicsObject()) {
- if (qt_gestureManager) {
- if (qt_gestureManager->filterEvent(object, event))
+ QGestureManager *gestureManager = QApplicationPrivate::instance()->gestureManager;
+ if (gestureManager) {
+ if (gestureManager->filterEvent(object, event))
return true;
}
}
@@ -1561,7 +1566,10 @@ QGraphicsScene::QGraphicsScene(qreal x, qreal y, qreal width, qreal height, QObj
}
/*!
- Destroys the QGraphicsScene object.
+ Removes and deletes all items from the scene object
+ before destroying the scene object. The scene object
+ is removed from the application's global scene list,
+ and it is removed from all associated views.
*/
QGraphicsScene::~QGraphicsScene()
{
@@ -2443,23 +2451,26 @@ void QGraphicsScene::destroyItemGroup(QGraphicsItemGroup *group)
}
/*!
- Adds or moves the item \a item and all its childen to the scene.
+ Adds or moves the \a item and all its childen to this scene.
+ This scene takes ownership of the \a item.
If the item is visible (i.e., QGraphicsItem::isVisible() returns
true), QGraphicsScene will emit changed() once control goes back
to the event loop.
- If the item is already in a different scene, it will first be removed from
- its old scene, and then added to this scene as a top-level.
+ If the item is already in a different scene, it will first be
+ removed from its old scene, and then added to this scene as a
+ top-level.
- QGraphicsScene will send ItemSceneChange notifications to \a item while
- it is added to the scene. If item does not currently belong to a scene, only one
- notification is sent. If it does belong to scene already (i.e., it is
- moved to this scene), QGraphicsScene will send an addition notification as
- the item is removed from its previous scene.
+ QGraphicsScene will send ItemSceneChange notifications to \a item
+ while it is added to the scene. If item does not currently belong
+ to a scene, only one notification is sent. If it does belong to
+ scene already (i.e., it is moved to this scene), QGraphicsScene
+ will send an addition notification as the item is removed from its
+ previous scene.
- If the item is a panel, the scene is active, and there is no active panel
- in the scene, then the item will be activated.
+ If the item is a panel, the scene is active, and there is no
+ active panel in the scene, then the item will be activated.
\sa removeItem(), addEllipse(), addLine(), addPath(), addPixmap(),
addRect(), addText(), addWidget(), {QGraphicsItem#Sorting}{Sorting}
@@ -2571,9 +2582,10 @@ void QGraphicsScene::addItem(QGraphicsItem *item)
item->d_ptr->resolveFont(d->font.resolve());
item->d_ptr->resolvePalette(d->palette.resolve());
- if (d->unpolishedItems.isEmpty())
- QMetaObject::invokeMethod(this, "_q_polishItems", Qt::QueuedConnection);
- d->unpolishedItems.insert(item);
+ if (d->unpolishedItems.isEmpty())
+ QMetaObject::invokeMethod(this, "_q_polishItems", Qt::QueuedConnection);
+ d->unpolishedItems.insert(item);
+ d->unpolishedItemsModified = true;
// Reenable selectionChanged() for individual items
--d->selectionChanging;
@@ -4674,8 +4686,31 @@ void QGraphicsScenePrivate::drawSubtreeRecursive(QGraphicsItem *item, QPainter *
if (sourced->currentCachedSystem() != Qt::LogicalCoordinates
&& sourced->lastEffectTransform != painter->worldTransform())
{
+ bool unclipped = false;
+ if (sourced->lastEffectTransform.type() <= QTransform::TxTranslate
+ && painter->worldTransform().type() <= QTransform::TxTranslate)
+ {
+ QRectF itemRect = item->boundingRect();
+ if (!item->d_ptr->children.isEmpty())
+ itemRect |= item->childrenBoundingRect();
+
+ QRectF oldSourceRect = sourced->lastEffectTransform.mapRect(itemRect);
+ QRectF newSourceRect = painter->worldTransform().mapRect(itemRect);
+
+ QRect oldEffectRect = sourced->paddedEffectRect(sourced->currentCachedSystem(), sourced->currentCachedMode(), oldSourceRect);
+ QRect newEffectRect = sourced->paddedEffectRect(sourced->currentCachedSystem(), sourced->currentCachedMode(), newSourceRect);
+
+ QRect deviceRect(0, 0, painter->device()->width(), painter->device()->height());
+ if (deviceRect.contains(oldEffectRect) && deviceRect.contains(newEffectRect)) {
+ sourced->setCachedOffset(newEffectRect.topLeft());
+ unclipped = true;
+ }
+ }
+
sourced->lastEffectTransform = painter->worldTransform();
- sourced->invalidateCache(QGraphicsEffectSourcePrivate::TransformChanged);
+
+ if (!unclipped)
+ sourced->invalidateCache(QGraphicsEffectSourcePrivate::TransformChanged);
}
item->d_ptr->graphicsEffect->draw(painter);
@@ -5089,6 +5124,10 @@ void QGraphicsScenePrivate::processDirtyItemsRecursive(QGraphicsItem *item, bool
\snippet doc/src/snippets/graphicssceneadditemsnippet.cpp 0
+ \obsolete Since Qt 4.6, this function is not called anymore unless
+ the QGraphicsView::IndirectPainting flag is given as an Optimization
+ flag.
+
\sa drawBackground(), drawForeground()
*/
void QGraphicsScene::drawItems(QPainter *painter,
@@ -6142,9 +6181,10 @@ void QGraphicsScenePrivate::cancelGesturesForChildren(QGesture *original, QWidge
}
}
- Q_ASSERT(qt_gestureManager); // it would be very odd if we got called without a manager.
+ QGestureManager *gestureManager = QApplicationPrivate::instance()->gestureManager;
+ Q_ASSERT(gestureManager); // it would be very odd if we got called without a manager.
for (setIter = canceledGestures.begin(); setIter != canceledGestures.end(); ++setIter) {
- qt_gestureManager->recycle(*setIter);
+ gestureManager->recycle(*setIter);
gestureTargets.remove(*setIter);
}
}
generated by cgit v0.12 at 2024-12-04 06:45:49 (GMT)