Merge remote-tracking branch 'mainline/4.7' into 4.7

Conflicts:
	dist/changes-4.7.4

12 files changed, 93 insertions, 47 deletions

diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index 1caa325..b4d8d56 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -417,6 +417,11 @@
     click focus to items underneath when being clicked on. This flag
     allows you create a non-focusable item that can be clicked on without
     changing the focus. \endomit
+
+    \omitvalue ItemStopsFocusHandling \omit Same as
+    ItemStopsClickFocusPropagation, but also suppresses focus-out. This flag
+    allows you to completely take over focus handling.
+    This flag was introduced in Qt 4.7.
 */
 
 /*!
@@ -11551,6 +11556,9 @@ QDebug operator<<(QDebug debug, QGraphicsItem::GraphicsItemFlag flag)
     case QGraphicsItem::ItemStopsClickFocusPropagation:
         str = "ItemStopsClickFocusPropagation";
         break;
+    case QGraphicsItem::ItemStopsFocusHandling:
+        str = "ItemStopsFocusHandling";
+        break;
     }
     debug << str;
     return debug;
diff --git a/src/gui/graphicsview/qgraphicsitem.h b/src/gui/graphicsview/qgraphicsitem.h
index e59a7c9..67c9cd3 100644
--- a/src/gui/graphicsview/qgraphicsitem.h
+++ b/src/gui/graphicsview/qgraphicsitem.h
@@ -107,7 +107,8 @@ public:
         ItemIsPanel = 0x4000,
         ItemIsFocusScope = 0x8000, // internal
         ItemSendsScenePositionChanges = 0x10000,
-        ItemStopsClickFocusPropagation = 0x20000
+        ItemStopsClickFocusPropagation = 0x20000,
+        ItemStopsFocusHandling = 0x40000
         // NB! Don't forget to increase the d_ptr->flags bit field by 1 when adding a new flag.
     };
     Q_DECLARE_FLAGS(GraphicsItemFlags, GraphicsItemFlag)
diff --git a/src/gui/graphicsview/qgraphicsitem_p.h b/src/gui/graphicsview/qgraphicsitem_p.h
index 5c82116..90ff43f 100644
--- a/src/gui/graphicsview/qgraphicsitem_p.h
+++ b/src/gui/graphicsview/qgraphicsitem_p.h
@@ -559,7 +559,7 @@ public:
     quint32 dirtyChildrenBoundingRect : 1;
 
     // Packed 32 bits
-    quint32 flags : 18;
+    quint32 flags : 19;
     quint32 paintedViewBoundingRectsNeedRepaint : 1;
     quint32 dirtySceneTransform : 1;
     quint32 geometryChanged : 1;
@@ -573,9 +573,9 @@ public:
     quint32 sceneTransformTranslateOnly : 1;
     quint32 notifyBoundingRectChanged : 1;
     quint32 notifyInvalidated : 1;
-    quint32 mouseSetsFocus : 1;
 
     // New 32 bits
+    quint32 mouseSetsFocus : 1;
     quint32 explicitActivate : 1;
     quint32 wantsActive : 1;
     quint32 holesInSiblingIndex : 1;
@@ -586,7 +586,7 @@ public:
     quint32 mayHaveChildWithGraphicsEffect : 1;
     quint32 isDeclarativeItem : 1;
     quint32 sendParentChangeNotification : 1;
-    quint32 padding : 22;
+    quint32 padding : 21;
 
     // Optional stacking order
     int globalStackingOrder;
diff --git a/src/gui/graphicsview/qgraphicsscene.cpp b/src/gui/graphicsview/qgraphicsscene.cpp
index df68b1d..85a4e16 100644
--- a/src/gui/graphicsview/qgraphicsscene.cpp
+++ b/src/gui/graphicsview/qgraphicsscene.cpp
@@ -1320,8 +1320,10 @@ void QGraphicsScenePrivate::mousePressEventHandler(QGraphicsSceneMouseEvent *mou
 
     // Set focus on the topmost enabled item that can take focus.
     bool setFocus = false;
+
     foreach (QGraphicsItem *item, cachedItemsUnderMouse) {
-        if (item->isBlockedByModalPanel()) {
+        if (item->isBlockedByModalPanel()
+            || (item->d_ptr->flags & QGraphicsItem::ItemStopsFocusHandling)) {
             // Make sure we don't clear focus.
             setFocus = true;
             break;
@@ -1334,10 +1336,10 @@ void QGraphicsScenePrivate::mousePressEventHandler(QGraphicsSceneMouseEvent *mou
                 break;
             }
         }
-        if (item->d_ptr->flags & QGraphicsItem::ItemStopsClickFocusPropagation)
-            break;
         if (item->isPanel())
             break;
+        if (item->d_ptr->flags & QGraphicsItem::ItemStopsClickFocusPropagation)
+            break;
     }
 
     // Check for scene modality.
@@ -5930,6 +5932,7 @@ bool QGraphicsScenePrivate::sendTouchBeginEvent(QGraphicsItem *origin, QTouchEve
 
     // Set focus on the topmost enabled item that can take focus.
     bool setFocus = false;
+
     foreach (QGraphicsItem *item, cachedItemsUnderMouse) {
         if (item->isEnabled() && ((item->flags() & QGraphicsItem::ItemIsFocusable) && item->d_ptr->mouseSetsFocus)) {
             if (!item->isWidget() || ((QGraphicsWidget *)item)->focusPolicy() & Qt::ClickFocus) {
@@ -5943,6 +5946,11 @@ bool QGraphicsScenePrivate::sendTouchBeginEvent(QGraphicsItem *origin, QTouchEve
             break;
         if (item->d_ptr->flags & QGraphicsItem::ItemStopsClickFocusPropagation)
             break;
+        if (item->d_ptr->flags & QGraphicsItem::ItemStopsFocusHandling) {
+            // Make sure we don't clear focus.
+            setFocus = true;
+            break;
+        }
     }
 
     // If nobody could take focus, clear it.
@@ -5975,7 +5983,8 @@ bool QGraphicsScenePrivate::sendTouchBeginEvent(QGraphicsItem *origin, QTouchEve
         }
         if (item && item->isPanel())
             break;
-        if (item && (item->d_ptr->flags & QGraphicsItem::ItemStopsClickFocusPropagation))
+        if (item && (item->d_ptr->flags
+                     & (QGraphicsItem::ItemStopsClickFocusPropagation | QGraphicsItem::ItemStopsFocusHandling)))
             break;
     }
 
diff --git a/src/gui/image/qpixmap_s60.cpp b/src/gui/image/qpixmap_s60.cpp
index fbdebf3..32d8dd7 100644
--- a/src/gui/image/qpixmap_s60.cpp
+++ b/src/gui/image/qpixmap_s60.cpp
@@ -601,6 +601,9 @@ bool QS60PixmapData::scroll(int dx, int dy, const QRect &rect)
     return res;
 }
 
+Q_GUI_EXPORT int qt_defaultDpiX();
+Q_GUI_EXPORT int qt_defaultDpiY();
+
 int QS60PixmapData::metric(QPaintDevice::PaintDeviceMetric metric) const
 {
     if (!cfbsBitmap)
@@ -611,28 +614,18 @@ int QS60PixmapData::metric(QPaintDevice::PaintDeviceMetric metric) const
         return cfbsBitmap->SizeInPixels().iWidth;
     case QPaintDevice::PdmHeight:
         return cfbsBitmap->SizeInPixels().iHeight;
-    case QPaintDevice::PdmWidthMM: {
-        TInt twips = cfbsBitmap->SizeInTwips().iWidth;
-        return (int)(twips * (25.4/KTwipsPerInch));
-    }
-    case QPaintDevice::PdmHeightMM: {
-        TInt twips = cfbsBitmap->SizeInTwips().iHeight;
-        return (int)(twips * (25.4/KTwipsPerInch));
-    }
+    case QPaintDevice::PdmWidthMM:
+        return qRound(cfbsBitmap->SizeInPixels().iWidth * 25.4 / qt_defaultDpiX());
+    case QPaintDevice::PdmHeightMM:
+        return qRound(cfbsBitmap->SizeInPixels().iHeight * 25.4 / qt_defaultDpiY());
     case QPaintDevice::PdmNumColors:
         return TDisplayModeUtils::NumDisplayModeColors(cfbsBitmap->DisplayMode());
     case QPaintDevice::PdmDpiX:
-    case QPaintDevice::PdmPhysicalDpiX: {
-        TReal inches = cfbsBitmap->SizeInTwips().iWidth / (TReal)KTwipsPerInch;
-        TInt pixels = cfbsBitmap->SizeInPixels().iWidth;
-        return pixels / inches;
-    }
+    case QPaintDevice::PdmPhysicalDpiX:
+        return qt_defaultDpiX();
     case QPaintDevice::PdmDpiY:
-    case QPaintDevice::PdmPhysicalDpiY: {
-        TReal inches = cfbsBitmap->SizeInTwips().iHeight / (TReal)KTwipsPerInch;
-        TInt pixels = cfbsBitmap->SizeInPixels().iHeight;
-        return pixels / inches;
-    }
+    case QPaintDevice::PdmPhysicalDpiY:
+        return qt_defaultDpiY();
     case QPaintDevice::PdmDepth:
         return TDisplayModeUtils::NumDisplayModeBitsPerPixel(cfbsBitmap->DisplayMode());
     default:
diff --git a/src/gui/kernel/qapplication_s60.cpp b/src/gui/kernel/qapplication_s60.cpp
index 43b9b01..2b10d63 100644
--- a/src/gui/kernel/qapplication_s60.cpp
+++ b/src/gui/kernel/qapplication_s60.cpp
@@ -1132,7 +1132,8 @@ void QSymbianControl::Draw(const TRect& controlRect) const
             // Do nothing
             break;
         case QWExtra::Blit:
-            if (qwidget->d_func()->isOpaque)
+        case QWExtra::BlitWriteAlpha:
+            if (qwidget->d_func()->isOpaque || nativePaintMode == QWExtra::BlitWriteAlpha)
                 gc.SetDrawMode(CGraphicsContext::EDrawModeWriteAlpha);
             gc.BitBlt(controlRect.iTl, bitmap, backingStoreRect);
             break;
diff --git a/src/gui/kernel/qclipboard_win.cpp b/src/gui/kernel/qclipboard_win.cpp
index 52b9663..ea41165 100644
--- a/src/gui/kernel/qclipboard_win.cpp
+++ b/src/gui/kernel/qclipboard_win.cpp
@@ -52,6 +52,7 @@
 #include "qt_windows.h"
 #include "qdnd_p.h"
 #include <private/qwidget_p.h>
+#include <private/qsystemlibrary_p.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -70,6 +71,9 @@ void QtCeFlushClipboard();
 
 #endif
 
+typedef BOOL (WINAPI *PtrIsHungAppWindow)(HWND);
+
+static PtrIsHungAppWindow ptrIsHungAppWindow = 0;
 
 class QClipboardWatcher : public QInternalMimeData {
 public:
@@ -327,9 +331,16 @@ bool QClipboard::event(QEvent *e)
             d->releaseIData();
         propagate = true;
     }
-
     if (propagate && d->nextClipboardViewer) {
-        SendMessage(d->nextClipboardViewer, m->message, m->wParam, m->lParam);
+        if (ptrIsHungAppWindow == 0) {
+            QSystemLibrary library(QLatin1String("User32"));
+            ptrIsHungAppWindow = (PtrIsHungAppWindow)library.resolve("IsHungAppWindow");
+        }
+        if (ptrIsHungAppWindow && ptrIsHungAppWindow(d->nextClipboardViewer)) {
+            qWarning("%s: Cowardly refusing to send clipboard message to hung application...", Q_FUNC_INFO);
+        } else {
+            SendMessage(d->nextClipboardViewer, m->message, m->wParam, m->lParam);
+        }
     }
 
     return true;
diff --git a/src/gui/kernel/qwidget_p.h b/src/gui/kernel/qwidget_p.h
index 5235dc4..13e2349 100644
--- a/src/gui/kernel/qwidget_p.h
+++ b/src/gui/kernel/qwidget_p.h
@@ -315,6 +315,11 @@ struct QWExtra {
          */
         ZeroFill,
 
+        /**
+         * Blit backing store, propagating alpha channel into the framebuffer.
+         */
+        BlitWriteAlpha,
+
         Default = Blit
     };
 
diff --git a/src/gui/kernel/qwidget_s60.cpp b/src/gui/kernel/qwidget_s60.cpp
index 62d09fe..b65ae4d 100644
--- a/src/gui/kernel/qwidget_s60.cpp
+++ b/src/gui/kernel/qwidget_s60.cpp
@@ -805,9 +805,14 @@ void QWidgetPrivate::s60UpdateIsOpaque()
 {
     Q_Q(QWidget);
 
-    if (!q->testAttribute(Qt::WA_WState_Created) || !q->testAttribute(Qt::WA_TranslucentBackground))
+    if (!q->testAttribute(Qt::WA_WState_Created))
         return;
 
+    const bool writeAlpha = extraData()->nativePaintMode == QWExtra::BlitWriteAlpha;
+    if (!q->testAttribute(Qt::WA_TranslucentBackground) && !writeAlpha)
+        return;
+    const bool requireAlphaChannel = !isOpaque || writeAlpha;
+
     createTLExtra();
 
     RWindow *const window = static_cast<RWindow *>(q->effectiveWinId()->DrawableWindow());
@@ -819,12 +824,11 @@ void QWidgetPrivate::s60UpdateIsOpaque()
         return;
     }
 #endif
-    if (!isOpaque) {
+    if (requireAlphaChannel) {
         const TDisplayMode displayMode = static_cast<TDisplayMode>(window->SetRequiredDisplayMode(EColor16MA));
         if (window->SetTransparencyAlphaChannel() == KErrNone) {
             window->SetBackgroundColor(TRgb(255, 255, 255, 0));
             extra->topextra->nativeWindowTransparencyEnabled = 1;
-
             if (extra->topextra->backingStore.data() && (
                     QApplicationPrivate::graphics_system_name == QLatin1String("openvg")
                     || QApplicationPrivate::graphics_system_name == QLatin1String("opengl"))) {
diff --git a/src/gui/painting/qgraphicssystem_runtime.cpp b/src/gui/painting/qgraphicssystem_runtime.cpp
index 5841d40..33652ee 100644
--- a/src/gui/painting/qgraphicssystem_runtime.cpp
+++ b/src/gui/painting/qgraphicssystem_runtime.cpp
@@ -394,7 +394,10 @@ void QRuntimeGraphicsSystem::setGraphicsSystem(const QString &name)
         if(m_windowSurfaceDestroyPolicy == DestroyAfterFirstFlush)
             proxy->m_pendingWindowSurface.reset(proxy->m_windowSurface.take());
 
-        proxy->m_windowSurface.reset(m_graphicsSystem->createWindowSurface(widget));
+        QWindowSurface *newWindowSurface = m_graphicsSystem->createWindowSurface(widget);
+        newWindowSurface->setGeometry(proxy->geometry());
+
+        proxy->m_windowSurface.reset(newWindowSurface);
         qt_widget_private(widget)->invalidateBuffer(widget->rect());
     }
 
diff --git a/src/gui/painting/qwindowsurface_s60.cpp b/src/gui/painting/qwindowsurface_s60.cpp
index 9f371a8..cb53ea0 100644
--- a/src/gui/painting/qwindowsurface_s60.cpp
+++ b/src/gui/painting/qwindowsurface_s60.cpp
@@ -63,7 +63,6 @@ struct QS60WindowSurfacePrivate
 
 TDisplayMode displayMode(bool opaque)
 {
-
     TDisplayMode mode = S60->screenDevice()->DisplayMode();
     if (opaque) {
         mode = EColor16MU;
@@ -76,10 +75,18 @@ TDisplayMode displayMode(bool opaque)
     return mode;
 }
 
+bool blitWriteAlpha(QWidgetPrivate *widgetPrivate)
+{
+    QWExtra *extra = widgetPrivate->extraData();
+    return extra ? extra->nativePaintMode == QWExtra::BlitWriteAlpha : false;
+}
+
 QS60WindowSurface::QS60WindowSurface(QWidget* widget)
     : QWindowSurface(widget), d_ptr(new QS60WindowSurfacePrivate)
 {
-    TDisplayMode mode = displayMode(qt_widget_private(widget)->isOpaque);
+    QWidgetPrivate *widgetPrivate = qt_widget_private(widget);
+    const bool opaque = widgetPrivate->isOpaque && !blitWriteAlpha(widgetPrivate);
+    TDisplayMode mode = displayMode(opaque);
     // We create empty CFbsBitmap here -> it will be resized in setGeometry
     CFbsBitmap *bitmap = q_check_ptr(new CFbsBitmap);	// CBase derived object needs check on new
     qt_symbian_throwIfError( bitmap->Create( TSize(0, 0), mode ) );
@@ -123,7 +130,8 @@ void QS60WindowSurface::beginPaint(const QRegion &rgn)
     S60->wsSession().Finish();
 #endif
 
-    if (!qt_widget_private(window())->isOpaque) {
+    QWidgetPrivate *windowPrivate = qt_widget_private(window());
+    if (!windowPrivate->isOpaque || blitWriteAlpha(windowPrivate)) {
         QS60PixmapData *pixmapData = static_cast<QS60PixmapData *>(d_ptr->device.data_ptr().data());
 
         TDisplayMode mode = displayMode(false);
@@ -132,12 +140,14 @@ void QS60WindowSurface::beginPaint(const QRegion &rgn)
 
         pixmapData->beginDataAccess();
 
-        QPainter p(&pixmapData->image);
-        p.setCompositionMode(QPainter::CompositionMode_Source);
-        const QVector<QRect> rects = rgn.rects();
-        const QColor blank = Qt::transparent;
-        for (QVector<QRect>::const_iterator it = rects.begin(); it != rects.end(); ++it) {
-            p.fillRect(*it, blank);
+        if (!windowPrivate->isOpaque) {
+            QPainter p(&pixmapData->image);
+            p.setCompositionMode(QPainter::CompositionMode_Source);
+            const QVector<QRect> rects = rgn.rects();
+            const QColor blank = Qt::transparent;
+            for (QVector<QRect>::const_iterator it = rects.begin(); it != rects.end(); ++it) {
+                p.fillRect(*it, blank);
+            }
         }
 
         pixmapData->endDataAccess();
diff --git a/src/gui/styles/qs60style_s60.cpp b/src/gui/styles/qs60style_s60.cpp
index 1ff195d..e46c826 100644
--- a/src/gui/styles/qs60style_s60.cpp
+++ b/src/gui/styles/qs60style_s60.cpp
@@ -639,13 +639,14 @@ QPixmap QS60StyleModeSpecifics::fromFbsBitmap(CFbsBitmap *icon, CFbsBitmap *mask
 
     QPixmap pixmap;
     QScopedPointer<QPixmapData> pd(QPixmapData::create(0, 0, QPixmapData::PixmapType));
-    bool nativeMaskSupported = (pd->toNativeType(QPixmapData::VolatileImage) != 0);
-    if (mask && nativeMaskSupported) {
-        // Efficient path, less copying and conversion.
+    if (mask) {
+        // Try the efficient path with less copying and conversion.
         QVolatileImage img(icon, mask);
         pd->fromNativeType(&img, QPixmapData::VolatileImage);
-        pixmap = QPixmap(pd.take());
-    } else {
+        if (!pd->isNull())
+            pixmap = QPixmap(pd.take());
+    }
+    if (pixmap.isNull()) {
         // Potentially more expensive path.
         pd->fromNativeType(icon, QPixmapData::FbsBitmap);
         pixmap = QPixmap(pd.take());