Merge branch 4.7 into qt-master-from-4.7

8 files changed, 63 insertions, 36 deletions

diff --git a/src/corelib/global/qnamespace.h b/src/corelib/global/qnamespace.h
index 8a3a04d..f015ed0 100644
--- a/src/corelib/global/qnamespace.h
+++ b/src/corelib/global/qnamespace.h
@@ -525,7 +525,6 @@ public:
 #endif
 
         WA_X11DoNotAcceptFocus = 132,
-        WA_MacNoCocoaChildWindow = 133,
 
         WA_MacNoShadow = 133,
 
diff --git a/src/corelib/global/qnamespace.qdoc b/src/corelib/global/qnamespace.qdoc
index 903e57e..07a9503 100644
--- a/src/corelib/global/qnamespace.qdoc
+++ b/src/corelib/global/qnamespace.qdoc
@@ -929,14 +929,6 @@
     the brushed metal style as supported by the windowing system. This
     attribute is only applicable to Mac OS X.
 
-    \value WA_MacNoCocoaChildWindow Indicates the widget should not be added
-    as a Cocoa child window of it's parent window. This will free the window
-    from being moved around together with the parent. However, this
-    will also allow it to stack/hide behind it's parent (if they are on
-    the same window level, e.g both windows are dialogs). This can cause problems if
-    both windows are modal, as the child can then block input to the parent
-    while hiding behind it. This attribute is only applicable to Mac OS X.
-
     \omitvalue WA_MacMetalStyle
 
     \value WA_Mapped Indicates that the widget is mapped on screen.
diff --git a/src/declarative/graphicsitems/qdeclarativeimage.cpp b/src/declarative/graphicsitems/qdeclarativeimage.cpp
index a62d3d2..b776532 100644
--- a/src/declarative/graphicsitems/qdeclarativeimage.cpp
+++ b/src/declarative/graphicsitems/qdeclarativeimage.cpp
@@ -136,12 +136,10 @@ void QDeclarativeImagePrivate::setPixmap(const QPixmap &pixmap)
     Q_Q(QDeclarativeImage);
     pix.setPixmap(pixmap);
 
-    q->setImplicitWidth(pix.width());
-    q->setImplicitHeight(pix.height());
+    q->pixmapChange();
     status = pix.isNull() ? QDeclarativeImageBase::Null : QDeclarativeImageBase::Ready;
 
     q->update();
-    q->pixmapChange();
 }
 
 /*!
@@ -390,8 +388,11 @@ void QDeclarativeImage::updatePaintedGeometry()
     Q_D(QDeclarativeImage);
 
     if (d->fillMode == PreserveAspectFit) {
-        if (!d->pix.width() || !d->pix.height())
+        if (!d->pix.width() || !d->pix.height()) {
+            setImplicitWidth(0);
+            setImplicitHeight(0);
             return;
+        }
         qreal w = widthValid() ? width() : d->pix.width();
         qreal widthScale = w / qreal(d->pix.width());
         qreal h = heightValid() ? height() : d->pix.height();
@@ -405,9 +406,13 @@ void QDeclarativeImage::updatePaintedGeometry()
         }
         if (widthValid() && !heightValid()) {
             setImplicitHeight(d->paintedHeight);
+        } else {
+            setImplicitHeight(d->pix.height());
         }
         if (heightValid() && !widthValid()) {
             setImplicitWidth(d->paintedWidth);
+        } else {
+            setImplicitWidth(d->pix.width());
         }
     } else if (d->fillMode == PreserveAspectCrop) {
         if (!d->pix.width() || !d->pix.height())
@@ -566,6 +571,13 @@ void QDeclarativeImage::paint(QPainter *p, const QStyleOptionGraphicsItem *, QWi
 
 void QDeclarativeImage::pixmapChange()
 {
+    Q_D(QDeclarativeImage);
+    // PreserveAspectFit calculates the implicit size differently so we
+    // don't call our superclass pixmapChange(), since that would
+    // result in the implicit size being set incorrectly, then updated
+    // in updatePaintedGeometry()
+    if (d->fillMode != PreserveAspectFit)
+        QDeclarativeImageBase::pixmapChange();
     updatePaintedGeometry();
 }
 
diff --git a/src/declarative/graphicsitems/qdeclarativeimagebase.cpp b/src/declarative/graphicsitems/qdeclarativeimagebase.cpp
index daebac4..81eac78 100644
--- a/src/declarative/graphicsitems/qdeclarativeimagebase.cpp
+++ b/src/declarative/graphicsitems/qdeclarativeimagebase.cpp
@@ -191,11 +191,9 @@ void QDeclarativeImageBase::load()
         d->pix.clear(this);
         d->status = Null;
         d->progress = 0.0;
-        setImplicitWidth(0);
-        setImplicitHeight(0);
+        pixmapChange();
         emit progressChanged(d->progress);
         emit statusChanged(d->status);
-        pixmapChange();
         update();
     } else {
         QDeclarativePixmap::Options options;
@@ -246,8 +244,7 @@ void QDeclarativeImageBase::requestFinished()
 
     d->progress = 1.0;
 
-    setImplicitWidth(d->pix.width());
-    setImplicitHeight(d->pix.height());
+    pixmapChange();
 
     if (d->sourcesize.width() != d->pix.width() || d->sourcesize.height() != d->pix.height())
         emit sourceSizeChanged();
@@ -256,7 +253,7 @@ void QDeclarativeImageBase::requestFinished()
         emit statusChanged(d->status);
     if (d->progress != oldProgress)
         emit progressChanged(d->progress);
-    pixmapChange();
+
     update();
 }
 
@@ -279,6 +276,9 @@ void QDeclarativeImageBase::componentComplete()
 
 void QDeclarativeImageBase::pixmapChange()
 {
+    Q_D(QDeclarativeImageBase);
+    setImplicitWidth(d->pix.width());
+    setImplicitHeight(d->pix.height());
 }
 
 QT_END_NAMESPACE
diff --git a/src/gui/kernel/qcocoasharedwindowmethods_mac_p.h b/src/gui/kernel/qcocoasharedwindowmethods_mac_p.h
index 7d41f3d..ee1115b 100644
--- a/src/gui/kernel/qcocoasharedwindowmethods_mac_p.h
+++ b/src/gui/kernel/qcocoasharedwindowmethods_mac_p.h
@@ -146,6 +146,20 @@ QT_END_NAMESPACE
     [NSApp terminate:sender];
 }
 
+- (void)setLevel:(NSInteger)windowLevel
+{
+    // Cocoa will upon activating/deactivating applications level modal
+    // windows up and down, regardsless of any explicit set window level.
+    // To ensure that modal stays-on-top dialogs actually stays on top after
+    // the application is activated (and therefore stacks in front of
+    // other stays-on-top windows), we need to add this little special-case override:
+    QWidget *widget = [[QT_MANGLE_NAMESPACE(QCocoaWindowDelegate) sharedDelegate] qt_qwidgetForWindow:self];
+    if (widget && widget->isModal() && (widget->windowFlags() & Qt::WindowStaysOnTopHint))
+        [super setLevel:NSPopUpMenuWindowLevel];
+    else
+        [super setLevel:windowLevel];
+}
+
 - (void)sendEvent:(NSEvent *)event
 {
     [self retain];
diff --git a/src/gui/kernel/qwidget_mac.mm b/src/gui/kernel/qwidget_mac.mm
index 4c205c8..f5a9e27 100644
--- a/src/gui/kernel/qwidget_mac.mm
+++ b/src/gui/kernel/qwidget_mac.mm
@@ -2849,14 +2849,16 @@ void QWidgetPrivate::transferChildren()
 #ifdef QT_MAC_USE_COCOA
 void QWidgetPrivate::setSubWindowStacking(bool set)
 {
+    // After hitting too many unforeseen bugs trying to put Qt on top of the cocoa child
+    // window API, we have decided to revert this behaviour as much as we can. We
+    // therefore now only allow child windows to exist for children of modal dialogs.
+    static bool use_behaviour_qt473 = !qgetenv("QT_MAC_USE_CHILDWINDOWS").isEmpty();
+
     // This will set/remove a visual relationship between parent and child on screen.
     // The reason for doing this is to ensure that a child always stacks infront of
-    // its parent (expecially if both windows are modal, and the child blocks input to
-    // the parent while at the same time hiding behind it). Unfortunatly is turns out
-    // that [NSWindow addChildWindow] has
+    // its parent. Unfortunatly is turns out that [NSWindow addChildWindow] has
     // several unwanted side-effects, one of them being the moving of a child when
-    // moving the parent, which we choose to accept (if this is unacceptable, consider
-    // using Qt::WA_MacNoCocoaChildWindow). A way tougher side-effect is
+    // moving the parent, which we choose to accept. A way tougher side-effect is
     // that Cocoa will hide the parent if you hide the child. And in the case of
     // a tool window, since it will normally hide when you deactivate the
     // application, Cocoa will hide the parent upon deactivate as well. The result often
@@ -2879,14 +2881,15 @@ void QWidgetPrivate::setSubWindowStacking(bool set)
     if (QWidget *parent = q->parentWidget()) {
         if (NSWindow *pwin = [qt_mac_nativeview_for(parent) window]) {
             if (set) {
-                if (!q->testAttribute(Qt::WA_MacNoCocoaChildWindow)) {
-                    Qt::WindowType ptype = parent->window()->windowType();
-                    if ([pwin isVisible] && (ptype == Qt::Window || ptype == Qt::Dialog) && ![qwin parentWindow]) {
-                        NSInteger level = [qwin level];
-                        [pwin addChildWindow:qwin ordered:NSWindowAbove];
-                        if ([qwin level] < level)
-                            [qwin setLevel:level];
-                    }
+                Qt::WindowType ptype = parent->window()->windowType();
+                if ([pwin isVisible]
+                    && (ptype == Qt::Window || ptype == Qt::Dialog)
+                    && ![qwin parentWindow]
+                    && (!use_behaviour_qt473 && parent->windowModality() == Qt::ApplicationModal)) {
+                    NSInteger level = [qwin level];
+                    [pwin addChildWindow:qwin ordered:NSWindowAbove];
+                    if ([qwin level] < level)
+                        [qwin setLevel:level];
                 }
             } else {
                 [pwin removeChildWindow:qwin];
@@ -2894,14 +2897,16 @@ void QWidgetPrivate::setSubWindowStacking(bool set)
         }
     }
 
+    // Only set-up child windows for q if q is modal:
+    if (set && !use_behaviour_qt473 && q->windowModality() != Qt::ApplicationModal)
+        return;
+
     QObjectList widgets = q->children();
     for (int i=0; i<widgets.size(); ++i) {
         QWidget *child = qobject_cast<QWidget *>(widgets.at(i));
         if (child && child->isWindow()) {
             if (NSWindow *cwin = [qt_mac_nativeview_for(child) window]) {
                 if (set) {
-                    if (child->testAttribute(Qt::WA_MacNoCocoaChildWindow))
-                        continue;
                     Qt::WindowType ctype = child->window()->windowType();
                     if ([cwin isVisible] && (ctype == Qt::Window || ctype == Qt::Dialog) && ![cwin parentWindow]) {
                         NSInteger level = [cwin level];
diff --git a/src/network/bearer/qnetworksession.cpp b/src/network/bearer/qnetworksession.cpp
index 00ca65c..af60a43 100644
--- a/src/network/bearer/qnetworksession.cpp
+++ b/src/network/bearer/qnetworksession.cpp
@@ -260,7 +260,7 @@ QNetworkSession::QNetworkSession(const QNetworkConfiguration &connectionConfig,
 */
 QNetworkSession::~QNetworkSession()
 {
-    d->deleteLater();
+    delete d;
 }
 
 /*!
diff --git a/src/network/bearer/qsharednetworksession.cpp b/src/network/bearer/qsharednetworksession.cpp
index 28ca173..fcb0128 100644
--- a/src/network/bearer/qsharednetworksession.cpp
+++ b/src/network/bearer/qsharednetworksession.cpp
@@ -59,6 +59,11 @@ inline QSharedNetworkSessionManager* sharedNetworkSessionManager()
     return rv;
 }
 
+static void doDeleteLater(QObject* obj)
+{
+    obj->deleteLater();
+}
+
 QSharedPointer<QNetworkSession> QSharedNetworkSessionManager::getSession(QNetworkConfiguration config)
 {
     QSharedNetworkSessionManager *m(sharedNetworkSessionManager());
@@ -69,7 +74,7 @@ QSharedPointer<QNetworkSession> QSharedNetworkSessionManager::getSession(QNetwor
             return p;
     }
     //otherwise make one
-    QSharedPointer<QNetworkSession> session(new QNetworkSession(config));
+    QSharedPointer<QNetworkSession> session(new QNetworkSession(config), doDeleteLater);
     m->sessions[config] = session;
     return session;
 }