Changeset 769 for trunk/src/gui/graphicsview/qgraphicsscene.cpp

Timestamp:

Aug 2, 2010, 9:27:30 PM (15 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.6.3 sources from branches/vendor/nokia/qt.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/gui/graphicsview/qgraphicsscene.cpp (modified) (15 diffs)

trunk/src/gui/graphicsview/qgraphicsscene.cpp

@@ -694 +694 @@
     if (!selectionChanging && selectedItems.size() != oldSelectedItemsSize)
         emit q->selectionChanged();
+
+    QHash<QGesture *, QGraphicsObject *>::iterator it;
+    for (it = gestureTargets.begin(); it != gestureTargets.end();) {
+        if (it.value() == item)
+            it = gestureTargets.erase(it);
+        else
+            ++it;
+    }
 }
 
@@ -802 +810 @@
             if (item) {
                 for (int i = 0; i < views.size(); ++i)
-                    views.at(i)->inputContext()->reset();
+                    if (views.at(i)->inputContext())
+                        views.at(i)->inputContext()->reset();
             }
         }
@@ -808 +817 @@
     }
 
+    if (item)
+        focusItem = item;
+    updateInputMethodSensitivityInViews();
     if (item) {
-        focusItem = item;
         QFocusEvent event(QEvent::FocusIn, focusReason);
         sendEvent(item, &event);
     }
-
-    updateInputMethodSensitivityInViews();
 }
 
@@ -3772 +3781 @@
     for (int i = 0; i < itemsAtPos.size(); ++i) {
         QGraphicsItem *tmp = itemsAtPos.at(i);
+        if (tmp->d_func()->isProxyWidget()) {
+            // if the item is a proxy widget, the event is forwarded to it
+            sendEvent(tmp, helpEvent);
+            if (helpEvent->isAccepted())
+                return;
+        }
         if (!tmp->toolTip().isEmpty()) {
             toolTipItem = tmp;
@@ -4285 +4300 @@
         // Blit the subpixmap into the main pixmap.
         pixmapPainter.begin(pix);
+        pixmapPainter.setCompositionMode(QPainter::CompositionMode_Source);
         pixmapPainter.setClipRegion(pixmapExposed);
         pixmapPainter.drawPixmap(br.topLeft(), subPix);
@@ -4450 +4466 @@
 
         // Create or reuse offscreen pixmap, possibly scroll/blit from the old one.
+        // If the world transform is rotated we always recreate the cache to avoid
+        // wrong blending.
         bool pixModified = false;
         QGraphicsItemCache::DeviceData *deviceData = &itemCache->deviceData[widget];
@@ -4457 +4475 @@
             diff *= painter->worldTransform();
         deviceData->lastTransform = painter->worldTransform();
-        if (!invertable || diff.type() > QTransform::TxTranslate) {
+        if (!invertable
+            || diff.type() > QTransform::TxTranslate
+            || painter->worldTransform().type() > QTransform::TxScale) {
             pixModified = true;
             itemCache->allExposed = true;
@@ -4679 +4699 @@
             item->d_ptr->paintedViewBoundingRects.insert(widget, viewBoundingRect);
         viewBoundingRect.adjust(-1, -1, 1, 1);
-        drawItem = exposedRegion ? exposedRegion->intersects(viewBoundingRect) : !viewBoundingRect.isEmpty();
+        drawItem = exposedRegion ? exposedRegion->intersects(viewBoundingRect)
+                                 : !viewBoundingRect.normalized().isEmpty();
         if (!drawItem) {
             if (!itemHasChildren)
@@ -4713 +4734 @@
             && 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;
-                }
+                QRectF sourceRect = sourced->boundingRect(Qt::DeviceCoordinates);
+                QRect effectRect = sourced->paddedEffectRect(Qt::DeviceCoordinates, sourced->currentCachedMode(), sourceRect);
+
+                sourced->setCachedOffset(effectRect.topLeft());
+            } else {
+                sourced->invalidateCache(QGraphicsEffectSourcePrivate::TransformChanged);
             }
 
             sourced->lastEffectTransform = painter->worldTransform();
-
-            if (!unclipped)
-                sourced->invalidateCache(QGraphicsEffectSourcePrivate::TransformChanged);
         }
 
@@ -4849 +4857 @@
 
 void QGraphicsScenePrivate::markDirty(QGraphicsItem *item, const QRectF &rect, bool invalidateChildren,
-                                      bool force, bool ignoreOpacity, bool removingItemFromScene)
+                                      bool force, bool ignoreOpacity, bool removingItemFromScene,
+                                      bool updateBoundingRect)
 {
     Q_ASSERT(item);
@@ -4920 +4929 @@
         item->d_ptr->ignoreOpacity = 1;
 
-    item->d_ptr->markParentDirty();
+    if (!updateBoundingRect)
+        item->d_ptr->markParentDirty();
 }
 
@@ -5131 +5141 @@
 
 /*!
+    \obsolete
+
     Paints the given \a items using the provided \a painter, after the
     background has been drawn, and before the foreground has been
@@ -5153 +5165 @@
     \snippet doc/src/snippets/graphicssceneadditemsnippet.cpp 0
 
-    \obsolete Since Qt 4.6, this function is not called anymore unless
+    Since Qt 4.6, this function is not called anymore unless
     the QGraphicsView::IndirectPainting flag is given as an Optimization
     flag.
@@ -5709 +5721 @@
             bool res = sendTouchBeginEvent(item, &touchEvent)
                        && touchEvent.isAccepted();
-            if (!res)
+            if (!res) {
+                // forget about these touch points, we didn't handle them
+                for (int i = 0; i < touchEvent.touchPoints().count(); ++i) {
+                    const QTouchEvent::TouchPoint &touchPoint = touchEvent.touchPoints().at(i);
+                    itemForTouchPointId.remove(touchPoint.id());
+                    sceneCurrentTouchPoints.remove(touchPoint.id());
+                }
                 ignoreSceneTouchEvent = false;
+            }
             break;
         }
@@ -5901 +5920 @@
             QList<QGraphicsObject *> result;
             for (int j = 0; j < items.size(); ++j) {
-                QGraphicsObject *item = items.at(j)->toGraphicsObject();
-                if (!item)
-                    continue;
-                QGraphicsItemPrivate *d = item->QGraphicsItem::d_func();
-                if (d->gestureContext.contains(gestureType)) {
-                    result.append(item);
+                QGraphicsItem *item = items.at(j);
+
+                // Check if the item is blocked by a modal panel and use it as
+                // a target instead of this item.
+                (void) item->isBlockedByModalPanel(&item);
+
+                if (QGraphicsObject *itemobj = item->toGraphicsObject()) {
+                    QGraphicsItemPrivate *d = item->d_func();
+                    if (d->gestureContext.contains(gestureType)) {
+                        result.append(itemobj);
+                    }
                 }
+                // Don't propagate through panels.
+                if (item->isPanel())
+                    break;
             }
             DEBUG() << "QGraphicsScenePrivate::getGestureTargets:"