Merge commit 'qt/master-stable' into 4.6-merged

Conflicts:
	.gitignore
	configure.exe
	src/corelib/concurrent/qtconcurrentthreadengine.h
	src/corelib/global/qnamespace.h
	src/gui/graphicsview/qgraphicssceneevent.h
	src/gui/kernel/qapplication.cpp
	src/gui/kernel/qapplication.h
	src/gui/kernel/qapplication_p.h
	src/gui/kernel/qapplication_qws.cpp
	src/gui/kernel/qwidget.h
	src/gui/painting/qpaintengine_raster.cpp
	src/gui/text/qfontdatabase.cpp
	src/network/access/qnetworkaccesshttpbackend.cpp
	tests/auto/network-settings.h
	tests/auto/qscriptjstestsuite/qscriptjstestsuite.pro
	tests/auto/qvariant/tst_qvariant.cpp

1 files changed, 161 insertions, 46 deletions

diff --git a/src/gui/graphicsview/qgraphicsview.cpp b/src/gui/graphicsview/qgraphicsview.cpp
index a3e2ebe..58bbdda 100644
--- a/src/gui/graphicsview/qgraphicsview.cpp
+++ b/src/gui/graphicsview/qgraphicsview.cpp
@@ -1,7 +1,7 @@
 /****************************************************************************
 **
 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: Qt Software Information (qt-info@nokia.com)
+** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the QtGui module of the Qt Toolkit.
 **
@@ -34,7 +34,7 @@
 ** met: http://www.gnu.org/copyleft/gpl.html.
 **
 ** If you are unsure which license is appropriate for your use, please
-** contact the sales department at qt-sales@nokia.com.
+** contact the sales department at http://www.qtsoftware.com/contact.
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/
@@ -284,8 +284,12 @@ static const int QGRAPHICSVIEW_PREALLOC_STYLE_OPTIONS = 503; // largest prime <
 #include <private/qt_x11_p.h>
 #endif
 
+#include <private/qevent_p.h>
+
 QT_BEGIN_NAMESPACE
 
+bool qt_sendSpontaneousEvent(QObject *receiver, QEvent *event);
+
 inline int q_round_bound(qreal d) //### (int)(qreal) INT_MAX != INT_MAX for single precision
 {
     if (d <= (qreal) INT_MIN)
@@ -295,6 +299,23 @@ inline int q_round_bound(qreal d) //### (int)(qreal) INT_MAX != INT_MAX for sing
     return d >= 0.0 ? int(d + 0.5) : int(d - int(d-1) + 0.5) + int(d-1);
 }
 
+void QGraphicsViewPrivate::translateTouchEvent(QGraphicsViewPrivate *d, QTouchEvent *touchEvent)
+{
+    QList<QTouchEvent::TouchPoint> touchPoints = touchEvent->touchPoints();
+    for (int i = 0; i < touchPoints.count(); ++i) {
+        QTouchEvent::TouchPoint &touchPoint = touchPoints[i];
+        // the scene will set the item local pos, startPos, lastPos, and rect before delivering to
+        // an item, but for now those functions are returning the view's local coordinates
+        touchPoint.setSceneRect(d->mapToScene(touchPoint.rect()));
+        touchPoint.setStartScenePos(d->mapToScene(touchPoint.startPos()));
+        touchPoint.setLastScenePos(d->mapToScene(touchPoint.lastPos()));
+
+        // screenPos, startScreenPos, lastScreenPos, and screenRect are already set
+    }
+
+    touchEvent->setTouchPoints(touchPoints);
+}
+
 /*!
     \internal
 */
@@ -591,7 +612,10 @@ void QGraphicsViewPrivate::mouseMoveEventHandler(QMouseEvent *event)
     lastMouseMoveScenePoint = mouseEvent.scenePos();
     lastMouseMoveScreenPoint = mouseEvent.screenPos();
     mouseEvent.setAccepted(false);
-    QApplication::sendEvent(scene, &mouseEvent);
+    if (event->spontaneous())
+        qt_sendSpontaneousEvent(scene, &mouseEvent);
+    else
+        QApplication::sendEvent(scene, &mouseEvent);
 
     // Remember whether the last event was accepted or not.
     lastMouseEvent.setAccepted(mouseEvent.isAccepted());
@@ -825,19 +849,22 @@ void QGraphicsViewPrivate::processPendingUpdates()
     dirtyRegion = QRegion();
 }
 
-void QGraphicsViewPrivate::updateRegion(const QRegion &r)
+bool QGraphicsViewPrivate::updateRegion(const QRegion &r)
 {
-    if (r.isEmpty() || fullUpdatePending)
-        return;
+    if (fullUpdatePending || viewportUpdateMode == QGraphicsView::NoViewportUpdate || r.isEmpty())
+        return false;
+
+    const QRect boundingRect = r.boundingRect();
+    if (!boundingRect.intersects(viewport->rect()))
+        return false; // Update region outside viewport.
 
-    // Rect intersects viewport - update everything?
     switch (viewportUpdateMode) {
     case QGraphicsView::FullViewportUpdate:
         fullUpdatePending = true;
         viewport->update();
         break;
     case QGraphicsView::BoundingRectViewportUpdate:
-        dirtyBoundingRect |= r.boundingRect();
+        dirtyBoundingRect |= boundingRect;
         if (dirtyBoundingRect.contains(viewport->rect())) {
             fullUpdatePending = true;
             viewport->update();
@@ -855,18 +882,20 @@ void QGraphicsViewPrivate::updateRegion(const QRegion &r)
         }
         break;
     }
-    case QGraphicsView::NoViewportUpdate:
-        // Unreachable
+    default:
         break;
     }
+
+    return true;
 }
 
-void QGraphicsViewPrivate::updateRect(const QRect &r)
+bool QGraphicsViewPrivate::updateRect(const QRect &r)
 {
-    if (r.isEmpty() || fullUpdatePending)
-        return;
+    if (fullUpdatePending || viewportUpdateMode == QGraphicsView::NoViewportUpdate
+        || !r.intersects(viewport->rect())) {
+        return false;
+    }
 
-    // Rect intersects viewport - update everything?
     switch (viewportUpdateMode) {
     case QGraphicsView::FullViewportUpdate:
         fullUpdatePending = true;
@@ -886,10 +915,11 @@ void QGraphicsViewPrivate::updateRect(const QRect &r)
         else
             dirtyRegion += r.adjusted(-2, -2, 2, 2);
         break;
-    case QGraphicsView::NoViewportUpdate:
-        // Unreachable
+    default:
         break;
     }
+
+    return true;
 }
 
 QStyleOptionGraphicsItem *QGraphicsViewPrivate::allocStyleOptionsArray(int numItems)
@@ -1497,7 +1527,7 @@ void QGraphicsView::setScene(QGraphicsScene *scene)
                    this, SLOT(updateScene(QList<QRectF>)));
         disconnect(d->scene, SIGNAL(sceneRectChanged(QRectF)),
                    this, SLOT(updateSceneRect(QRectF)));
-        d->scene->d_func()->views.removeAll(this);
+        d->scene->d_func()->removeView(this);
         d->connectedToScene = false;
     }
 
@@ -1506,7 +1536,7 @@ void QGraphicsView::setScene(QGraphicsScene *scene)
         connect(d->scene, SIGNAL(sceneRectChanged(QRectF)),
                 this, SLOT(updateSceneRect(QRectF)));
         d->updateSceneSlotReimplementedChecked = false;
-        d->scene->d_func()->views << this;
+        d->scene->d_func()->addView(this);
         d->recalculateContentSize();
         d->lastCenterPoint = sceneRect().center();
         d->keepLastCenterPoint = true;
@@ -1516,6 +1546,10 @@ void QGraphicsView::setScene(QGraphicsScene *scene)
             || !d->scene->d_func()->allItemsUseDefaultCursor) {
             d->viewport->setMouseTracking(true);
         }
+
+        // enable touch events if any items is interested in them
+        if (!d->scene->d_func()->allItemsIgnoreTouchEvents)
+            d->viewport->setAttribute(Qt::WA_AcceptTouchEvents);
     } else {
         d->recalculateContentSize();
     }
@@ -1949,8 +1983,7 @@ void QGraphicsView::render(QPainter *painter, const QRectF &target, const QRect
     itemList.clear();
 
     // Setup painter matrix.
-    QTransform moveMatrix;
-    moveMatrix.translate(-d->horizontalScroll(), -d->verticalScroll());
+    QTransform moveMatrix = QTransform::fromTranslate(-d->horizontalScroll(), -d->verticalScroll());
     QTransform painterMatrix = d->matrix * moveMatrix;
     painterMatrix *= QTransform()
                      .translate(targetRect.left(), targetRect.top())
@@ -2301,9 +2334,9 @@ QPolygonF QGraphicsView::mapToScene(const QPolygon &polygon) const
 QPainterPath QGraphicsView::mapToScene(const QPainterPath &path) const
 {
     Q_D(const QGraphicsView);
-    QTransform moveMatrix;
-    moveMatrix.translate(d->horizontalScroll(), d->verticalScroll());
-    return (moveMatrix * d->matrix.inverted()).map(path);
+    QTransform matrix = QTransform::fromTranslate(d->horizontalScroll(), d->verticalScroll());
+    matrix *= d->matrix.inverted();
+    return matrix.map(path);
 }
 
 /*!
@@ -2397,9 +2430,9 @@ QPolygon QGraphicsView::mapFromScene(const QPolygonF &polygon) const
 QPainterPath QGraphicsView::mapFromScene(const QPainterPath &path) const
 {
     Q_D(const QGraphicsView);
-    QTransform moveMatrix;
-    moveMatrix.translate(-d->horizontalScroll(), -d->verticalScroll());
-    return (d->matrix * moveMatrix).map(path);
+    QTransform matrix = d->matrix;
+    matrix *= QTransform::fromTranslate(-d->horizontalScroll(), -d->verticalScroll());
+    return matrix.map(path);
 }
 
 /*!
@@ -2599,6 +2632,11 @@ void QGraphicsView::setupViewport(QWidget *widget)
                      || !d->scene->d_func()->allItemsUseDefaultCursor)) {
         widget->setMouseTracking(true);
     }
+
+    // enable touch events if any items is interested in them
+    if (d->scene && !d->scene->d_func()->allItemsIgnoreTouchEvents)
+        widget->setAttribute(Qt::WA_AcceptTouchEvents);
+
     widget->setAcceptDrops(acceptDrops());
 }
 
@@ -2635,6 +2673,9 @@ bool QGraphicsView::event(QEvent *event)
                 }
             }
             break;
+        case QEvent::Gesture:
+            viewportEvent(event);
+            return true;
         default:
             break;
         }
@@ -2716,6 +2757,34 @@ bool QGraphicsView::viewportEvent(QEvent *event)
             d->scene->d_func()->updateAll = false;
         }
         break;
+    case QEvent::Gesture: {
+        QGraphicsSceneGestureEvent gestureEvent;
+        gestureEvent.setWidget(this);
+        QGestureEvent *ev = static_cast<QGestureEvent*>(event);
+        gestureEvent.setGestures(ev->gestures());
+        gestureEvent.setCancelledGestures(ev->cancelledGestures());
+        QApplication::sendEvent(d->scene, &gestureEvent);
+        event->setAccepted(gestureEvent.isAccepted());
+        return true;
+    }
+        break;
+    case QEvent::TouchBegin:
+    case QEvent::TouchUpdate:
+    case QEvent::TouchEnd:
+    {
+        if (!isEnabled())
+            return false;
+
+        if (d->scene && d->sceneInteractionAllowed) {
+            // Convert and deliver the touch event to the scene.
+            QTouchEvent *touchEvent = static_cast<QTouchEvent *>(event);
+            touchEvent->setWidget(viewport());
+            QGraphicsViewPrivate::translateTouchEvent(d, touchEvent);
+            (void) QApplication::sendEvent(d->scene, touchEvent);
+        }
+
+        return true;
+    }
     default:
         break;
     }
@@ -2974,7 +3043,10 @@ void QGraphicsView::mouseDoubleClickEvent(QMouseEvent *event)
     mouseEvent.setAccepted(false);
     mouseEvent.setButton(event->button());
     mouseEvent.setModifiers(event->modifiers());
-    QApplication::sendEvent(d->scene, &mouseEvent);
+    if (event->spontaneous())
+        qt_sendSpontaneousEvent(d->scene, &mouseEvent);
+    else
+        QApplication::sendEvent(d->scene, &mouseEvent);
 }
 
 /*!
@@ -3013,7 +3085,10 @@ void QGraphicsView::mousePressEvent(QMouseEvent *event)
             mouseEvent.setButton(event->button());
             mouseEvent.setModifiers(event->modifiers());
             mouseEvent.setAccepted(false);
-            QApplication::sendEvent(d->scene, &mouseEvent);
+            if (event->spontaneous())
+                qt_sendSpontaneousEvent(d->scene, &mouseEvent);
+            else
+                QApplication::sendEvent(d->scene, &mouseEvent);
 
             // Update the original mouse event accepted state.
             bool isAccepted = mouseEvent.isAccepted();
@@ -3183,7 +3258,10 @@ void QGraphicsView::mouseReleaseEvent(QMouseEvent *event)
     mouseEvent.setButton(event->button());
     mouseEvent.setModifiers(event->modifiers());
     mouseEvent.setAccepted(false);
-    QApplication::sendEvent(d->scene, &mouseEvent);
+    if (event->spontaneous())
+        qt_sendSpontaneousEvent(d->scene, &mouseEvent);
+    else
+        QApplication::sendEvent(d->scene, &mouseEvent);
 
     // Update the last mouse event selected state.
     d->lastMouseEvent.setAccepted(mouseEvent.isAccepted());
@@ -3242,10 +3320,6 @@ void QGraphicsView::paintEvent(QPaintEvent *event)
 
     // Determine the exposed region
     d->exposedRegion = event->region();
-    if (!d->accelerateScrolling)
-        d->exposedRegion = viewport()->rect();
-    else if (d->viewportUpdateMode == BoundingRectViewportUpdate)
-        d->exposedRegion = event->rect();
     QRectF exposedSceneRect = mapToScene(d->exposedRegion.boundingRect()).boundingRect();
 
     // Set up the painter
@@ -3259,8 +3333,10 @@ void QGraphicsView::paintEvent(QPaintEvent *event)
     painter.setRenderHints(d->renderHints, true);
 
     // Set up viewport transform
-    const QTransform viewTransform = viewportTransform();
-    painter.setWorldTransform(viewTransform);
+    const bool viewTransformed = isTransformed();
+    if (viewTransformed)
+        painter.setWorldTransform(viewportTransform());
+    const QTransform viewTransform = painter.worldTransform();
 
     // Draw background
     if ((d->cacheMode & CacheBackground)
@@ -3285,16 +3361,21 @@ void QGraphicsView::paintEvent(QPaintEvent *event)
         if (!d->backgroundPixmapExposed.isEmpty()) {
             QPainter backgroundPainter(&d->backgroundPixmap);
             backgroundPainter.setClipRegion(d->backgroundPixmapExposed, Qt::ReplaceClip);
-            backgroundPainter.setTransform(viewportTransform());
+            if (viewTransformed)
+                backgroundPainter.setTransform(viewTransform);
             backgroundPainter.setCompositionMode(QPainter::CompositionMode_Source);
             drawBackground(&backgroundPainter, exposedSceneRect);
             d->backgroundPixmapExposed = QRegion();
         }
 
         // Blit the background from the background pixmap
-        painter.setWorldTransform(QTransform());
-        painter.drawPixmap(QPoint(), d->backgroundPixmap);
-        painter.setWorldTransform(viewTransform);
+        if (viewTransformed) {
+            painter.setWorldTransform(QTransform());
+            painter.drawPixmap(QPoint(), d->backgroundPixmap);
+            painter.setWorldTransform(viewTransform);
+        } else {
+            painter.drawPixmap(QPoint(), d->backgroundPixmap);
+        }
     } else {
         if (!(d->optimizationFlags & DontSavePainterState))
             painter.save();
@@ -3305,20 +3386,22 @@ void QGraphicsView::paintEvent(QPaintEvent *event)
 
     // Items
     if (!(d->optimizationFlags & IndirectPainting)) {
-        d->scene->d_func()->drawSubtreeRecursive(0, &painter, viewTransform, &d->exposedRegion,
-                                                 viewport(), 0);
+        d->scene->d_func()->drawItems(&painter, viewTransformed ? &viewTransform : 0,
+                                      &d->exposedRegion, viewport());
     } else {
         // Find all exposed items
         bool allItems = false;
         QList<QGraphicsItem *> itemList = d->findItems(d->exposedRegion, &allItems);
-        
+
         if (!itemList.isEmpty()) {
             // Generate the style options.
             const int numItems = itemList.size();
             QGraphicsItem **itemArray = &itemList[0]; // Relies on QList internals, but is perfectly valid.
             QStyleOptionGraphicsItem *styleOptionArray = d->allocStyleOptionsArray(numItems);
-            for (int i = 0; i < numItems; ++i)
-                itemArray[i]->d_ptr->initStyleOption(&styleOptionArray[i], viewTransform, d->exposedRegion, allItems);
+            for (int i = 0; i < numItems; ++i) {
+                itemArray[i]->d_ptr->initStyleOption(&styleOptionArray[i], viewTransform,
+                                                     d->exposedRegion, allItems);
+            }
             // Draw the items.
             drawItems(&painter, numItems, itemArray, styleOptionArray);
             d->freeStyleOptionsArray(styleOptionArray);
@@ -3557,8 +3640,7 @@ QTransform QGraphicsView::transform() const
 QTransform QGraphicsView::viewportTransform() const
 {
     Q_D(const QGraphicsView);
-    QTransform moveMatrix;
-    moveMatrix.translate(-d->horizontalScroll(), -d->verticalScroll());
+    QTransform moveMatrix = QTransform::fromTranslate(-d->horizontalScroll(), -d->verticalScroll());
     return d->identityMatrix ? moveMatrix : d->matrix * moveMatrix;
 }
 
@@ -3638,6 +3720,39 @@ void QGraphicsView::resetTransform()
     setTransform(QTransform());
 }
 
+QPointF QGraphicsViewPrivate::mapToScene(const QPointF &point) const
+{
+    QPointF p = point;
+    p.rx() += horizontalScroll();
+    p.ry() += verticalScroll();
+    return identityMatrix ? p : matrix.inverted().map(p);
+}
+
+QRectF QGraphicsViewPrivate::mapToScene(const QRectF &rect) const
+{
+    QPointF scrollOffset(horizontalScroll(), verticalScroll());
+    QPointF tl = scrollOffset + rect.topLeft();
+    QPointF tr = scrollOffset + rect.topRight();
+    QPointF br = scrollOffset + rect.bottomRight();
+    QPointF bl = scrollOffset + rect.bottomLeft();
+
+    QPolygonF poly;
+    poly.resize(4);
+    if (!identityMatrix) {
+        QTransform x = matrix.inverted();
+        poly[0] = x.map(tl);
+        poly[1] = x.map(tr);
+        poly[2] = x.map(br);
+        poly[3] = x.map(bl);
+    } else {
+        poly[0] = tl;
+        poly[1] = tr;
+        poly[2] = br;
+        poly[3] = bl;
+    }
+    return poly.boundingRect();
+}
+
 QT_END_NAMESPACE
 
 #include "moc_qgraphicsview.cpp"