Merge branch '4.5'

Conflicts:
	tools/macdeployqt/shared/shared.cpp

31 files changed, 269 insertions, 111 deletions

diff --git a/.hgignore b/.hgignore
index 784d507..eb6ff05 100755
--- a/.hgignore
+++ b/.hgignore
@@ -5,6 +5,8 @@ syntax: glob
 
 *~
 *.a
+*.la
+*.pc
 *.core
 *.moc
 *.o
@@ -45,7 +47,9 @@ bin/rcc*
 bin/uic*
 bin/qcollectiongenerator
 bin/qhelpgenerator
+bin/macdeployqt
 tools/qdoc3/qdoc3*
+tools/macdeployqt/macchangeqt/macchangeqt
 #configure.cache
 mkspecs/default
 mkspecs/qconfig.pri
diff --git a/configure.exe b/configure.exe
index ff71f08..40843b4 100644
--- a/configure.exe
+++ b/configure.exe
diff --git a/doc/src/layout.qdoc b/doc/src/layout.qdoc
index 55dfd8b..196999b 100644
--- a/doc/src/layout.qdoc
+++ b/doc/src/layout.qdoc
@@ -315,7 +315,11 @@
 
     \snippet doc/src/snippets/code/doc_src_layout.qdoc 1
 
-    First we define two functions that iterate over the layout: \c{itemAt()}
+    First we define \c{count()} to fetch the number of items in the list.
+
+    \snippet doc/src/snippets/code/doc_src_layout.qdoc 2
+
+    Then we define two functions that iterate over the layout: \c{itemAt()}
     and \c{takeAt()}. These functions are used internally by the layout system
     to handle deletion of widgets. They are also available for application
     programmers. 
@@ -326,7 +330,7 @@
     structure, we may have to spend more effort defining a linear order for the
     items.
 
-    \snippet doc/src/snippets/code/doc_src_layout.qdoc 2
+    \snippet doc/src/snippets/code/doc_src_layout.qdoc 3
 
     \c{addItem()} implements the default placement strategy for layout items.
     This function must be implemented. It is used by QLayout::add(), by the
@@ -336,26 +340,26 @@
     QGridLayout::addItem(), QGridLayout::addWidget(), and
     QGridLayout::addLayout().
 
-    \snippet doc/src/snippets/code/doc_src_layout.qdoc 3
+    \snippet doc/src/snippets/code/doc_src_layout.qdoc 4
 
     The layout takes over responsibility of the items added. Since QLayoutItem
     does not inherit QObject, we must delete the items manually. The function
     QLayout::deleteAllItems() uses \c{takeAt()} defined above to delete all the
     items in the layout.
 
-    \snippet doc/src/snippets/code/doc_src_layout.qdoc 4
+    \snippet doc/src/snippets/code/doc_src_layout.qdoc 5
 
     The \c{setGeometry()} function actually performs the layout. The rectangle
     supplied as an argument does not include \c{margin()}. If relevant, use
     \c{spacing()} as the distance between items.
 
-    \snippet doc/src/snippets/code/doc_src_layout.qdoc 5
+    \snippet doc/src/snippets/code/doc_src_layout.qdoc 6
 
     \c{sizeHint()} and \c{minimumSize()} are normally very similar in
     implementation. The sizes returned by both functions should include
     \c{spacing()}, but not \c{margin()}.
 
-    \snippet doc/src/snippets/code/doc_src_layout.qdoc 6
+    \snippet doc/src/snippets/code/doc_src_layout.qdoc 7
 
 
     \section2 Further Notes
diff --git a/doc/src/snippets/code/doc_src_layout.qdoc b/doc/src/snippets/code/doc_src_layout.qdoc
index 48e10e9..fedcf0c 100644
--- a/doc/src/snippets/code/doc_src_layout.qdoc
+++ b/doc/src/snippets/code/doc_src_layout.qdoc
@@ -2,23 +2,21 @@
 #ifndef CARD_H
 #define CARD_H
 
-#include <QLayout>
+#include <QtGui>
 #include <QList>
 
 class CardLayout : public QLayout
 {
 public:
-    CardLayout(QWidget *parent, int dist)
-        : QLayout(parent, 0, dist) {}
-    CardLayout(QLayout *parent, int dist)
-        : QLayout(parent, dist) {}
-    CardLayout(int dist)
-        : QLayout(dist) {}
+    CardLayout(QWidget *parent, int dist): QLayout(parent, 0, dist) {}
+    CardLayout(QLayout *parent, int dist): QLayout(parent, dist) {}
+    CardLayout(int dist): QLayout(dist) {}
     ~CardLayout();
 
     void addItem(QLayoutItem *item);
     QSize sizeHint() const;
     QSize minimumSize() const;
+	QLayoutItem *count() const;
     QLayoutItem *itemAt(int) const;
     QLayoutItem *takeAt(int);
     void setGeometry(const QRect &rect);
@@ -31,11 +29,18 @@ private:
 
 
 //! [1]
-#include "card.h"
+//#include "card.h"
 //! [1]
 
-
 //! [2]
+QLayoutItem *CardLayout::count() const
+{
+	// QList::size() returns the number of QLayoutItems in the list
+    return list.size();
+}
+//! [2]
+
+//! [3]
 QLayoutItem *CardLayout::itemAt(int idx) const
 {
     // QList::value() performs index checking, and returns 0 if we are
@@ -48,26 +53,26 @@ QLayoutItem *CardLayout::takeAt(int idx)
     // QList::take does not do index checking
     return idx >= 0 && idx < list.size() ? list.takeAt(idx) : 0;
 }
-//! [2]
+//! [3]
 
 
-//! [3]
+//! [4]
 void CardLayout::addItem(QLayoutItem *item)
 {
     list.append(item);
 }
-//! [3]
+//! [4]
 
 
-//! [4]
+//! [5]
 CardLayout::~CardLayout()
 {
     deleteAllItems();
 }
-//! [4]
+//! [5]
 
 
-//! [5]
+//! [6]
 void CardLayout::setGeometry(const QRect &r)
 {
     QLayout::setGeometry(r);
@@ -85,10 +90,10 @@ void CardLayout::setGeometry(const QRect &r)
         ++i;
     }
 }
-//! [5]
+//! [6]
 
 
-//! [6]
+//! [7]
 QSize CardLayout::sizeHint() const
 {
     QSize s(0,0);
@@ -116,4 +121,4 @@ QSize CardLayout::minimumSize() const
     }
     return s + n*QSize(spacing(), spacing());
 }
-//! [6]
+//! [7]
\ No newline at end of file
diff --git a/mkspecs/features/win32/ltcg.prf b/mkspecs/features/win32/ltcg.prf
new file mode 100644
index 0000000..f6f1299
--- /dev/null
+++ b/mkspecs/features/win32/ltcg.prf
@@ -0,0 +1,5 @@
+CONFIG(release, debug|release) {
+    QMAKE_CFLAGS *= $$QMAKE_CFLAGS_LTCG
+    QMAKE_CXXFLAGS *= $$QMAKE_CXXFLAGS_LTCG
+    QMAKE_LFLAGS *= $$QMAKE_LFLAGS_LTCG
+}
diff --git a/mkspecs/win32-msvc2005/qmake.conf b/mkspecs/win32-msvc2005/qmake.conf
index 00287cb..5ed8e01 100644
--- a/mkspecs/win32-msvc2005/qmake.conf
+++ b/mkspecs/win32-msvc2005/qmake.conf
@@ -19,9 +19,10 @@ QMAKE_YACCFLAGS         = -d
 QMAKE_CFLAGS            = -nologo -Zm200 -Zc:wchar_t-
 QMAKE_CFLAGS_WARN_ON    = -W3
 QMAKE_CFLAGS_WARN_OFF   = -W0
-QMAKE_CFLAGS_RELEASE    = -O2 -MD -GL
+QMAKE_CFLAGS_RELEASE    = -O2 -MD
 QMAKE_CFLAGS_DEBUG      = -Zi -MDd
 QMAKE_CFLAGS_YACC       =
+QMAKE_CFLAGS_LTCG       = -GL
 
 QMAKE_CXX               = $$QMAKE_CC
 QMAKE_CXXFLAGS          = $$QMAKE_CFLAGS
@@ -30,6 +31,7 @@ QMAKE_CXXFLAGS_WARN_OFF = $$QMAKE_CFLAGS_WARN_OFF
 QMAKE_CXXFLAGS_RELEASE  = $$QMAKE_CFLAGS_RELEASE
 QMAKE_CXXFLAGS_DEBUG    = $$QMAKE_CFLAGS_DEBUG
 QMAKE_CXXFLAGS_YACC     = $$QMAKE_CFLAGS_YACC
+QMAKE_CXXFLAGS_LTCG     = $$QMAKE_CFLAGS_LTCG
 QMAKE_CXXFLAGS_STL_ON   = -EHsc
 QMAKE_CXXFLAGS_STL_OFF  =
 QMAKE_CXXFLAGS_RTTI_ON  = -GR
@@ -50,11 +52,12 @@ QMAKE_RUN_CXX_IMP_BATCH = $(CXX) -c $(CXXFLAGS) $(INCPATH) -Fo$@ @<<
 
 QMAKE_LINK              = link
 QMAKE_LFLAGS            = /NOLOGO
-QMAKE_LFLAGS_RELEASE    = /INCREMENTAL:NO /LTCG
+QMAKE_LFLAGS_RELEASE    = /INCREMENTAL:NO
 QMAKE_LFLAGS_DEBUG      = /DEBUG
 QMAKE_LFLAGS_CONSOLE    = /SUBSYSTEM:CONSOLE
 QMAKE_LFLAGS_WINDOWS    = /SUBSYSTEM:WINDOWS \"/MANIFESTDEPENDENCY:type=\'win32\' name=\'Microsoft.Windows.Common-Controls\' version=\'6.0.0.0\' publicKeyToken=\'6595b64144ccf1df\' language=\'*\' processorArchitecture=\'*\'\"
 QMAKE_LFLAGS_DLL        = /DLL
+QMAKE_LFLAGS_LTCG       = /LTCG
 
 QMAKE_LIBS_CORE         = kernel32.lib user32.lib shell32.lib uuid.lib ole32.lib advapi32.lib ws2_32.lib
 QMAKE_LIBS_GUI          = gdi32.lib comdlg32.lib oleaut32.lib imm32.lib winmm.lib winspool.lib ws2_32.lib ole32.lib user32.lib advapi32.lib
diff --git a/mkspecs/win32-msvc2008/qmake.conf b/mkspecs/win32-msvc2008/qmake.conf
index b56b41c..373a36d 100644
--- a/mkspecs/win32-msvc2008/qmake.conf
+++ b/mkspecs/win32-msvc2008/qmake.conf
@@ -19,9 +19,10 @@ QMAKE_YACCFLAGS         = -d
 QMAKE_CFLAGS            = -nologo -Zm200 -Zc:wchar_t-
 QMAKE_CFLAGS_WARN_ON    = -W3
 QMAKE_CFLAGS_WARN_OFF   = -W0
-QMAKE_CFLAGS_RELEASE    = -O2 -MD -GL
+QMAKE_CFLAGS_RELEASE    = -O2 -MD
 QMAKE_CFLAGS_DEBUG      = -Zi -MDd
 QMAKE_CFLAGS_YACC       =
+QMAKE_CFLAGS_LTCG       = -GL
 
 QMAKE_CXX               = $$QMAKE_CC
 QMAKE_CXXFLAGS          = $$QMAKE_CFLAGS
@@ -30,6 +31,7 @@ QMAKE_CXXFLAGS_WARN_OFF = $$QMAKE_CFLAGS_WARN_OFF
 QMAKE_CXXFLAGS_RELEASE  = $$QMAKE_CFLAGS_RELEASE
 QMAKE_CXXFLAGS_DEBUG    = $$QMAKE_CFLAGS_DEBUG
 QMAKE_CXXFLAGS_YACC     = $$QMAKE_CFLAGS_YACC
+QMAKE_CXXFLAGS_LTCG     = $$QMAKE_CFLAGS_LTCG
 QMAKE_CXXFLAGS_STL_ON   = -EHsc
 QMAKE_CXXFLAGS_STL_OFF  =
 QMAKE_CXXFLAGS_RTTI_ON  = -GR
@@ -50,11 +52,12 @@ QMAKE_RUN_CXX_IMP_BATCH = $(CXX) -c $(CXXFLAGS) $(INCPATH) -Fo$@ @<<
 
 QMAKE_LINK              = link
 QMAKE_LFLAGS            = /NOLOGO
-QMAKE_LFLAGS_RELEASE    = /INCREMENTAL:NO /LTCG
+QMAKE_LFLAGS_RELEASE    = /INCREMENTAL:NO
 QMAKE_LFLAGS_DEBUG      = /DEBUG
 QMAKE_LFLAGS_CONSOLE    = /SUBSYSTEM:CONSOLE
 QMAKE_LFLAGS_WINDOWS    = /SUBSYSTEM:WINDOWS \"/MANIFESTDEPENDENCY:type=\'win32\' name=\'Microsoft.Windows.Common-Controls\' version=\'6.0.0.0\' publicKeyToken=\'6595b64144ccf1df\' language=\'*\' processorArchitecture=\'*\'\"
 QMAKE_LFLAGS_DLL        = /DLL
+QMAKE_LFLAGS_LTCG       = /LTCG
 
 QMAKE_LIBS_CORE         = kernel32.lib user32.lib shell32.lib uuid.lib ole32.lib advapi32.lib ws2_32.lib
 QMAKE_LIBS_GUI          = gdi32.lib comdlg32.lib oleaut32.lib imm32.lib winmm.lib winspool.lib ws2_32.lib ole32.lib user32.lib advapi32.lib
diff --git a/mkspecs/wince50standard-mipsii-msvc2008/default_post.prf b/mkspecs/wince50standard-mipsii-msvc2008/default_post.prf
index a232ba3..d423784 100644
--- a/mkspecs/wince50standard-mipsii-msvc2008/default_post.prf
+++ b/mkspecs/wince50standard-mipsii-msvc2008/default_post.prf
@@ -1 +1 @@
-include(../wince50standard-mipsii-msvc2005/qmake.conf)
+include(../wince50standard-mipsii-msvc2005/default_post.prf)
diff --git a/qmake/generators/xmloutput.cpp b/qmake/generators/xmloutput.cpp
index 68d22e1..d77dd4b 100644
--- a/qmake/generators/xmloutput.cpp
+++ b/qmake/generators/xmloutput.cpp
@@ -277,7 +277,7 @@ void XmlOutput::closeTag()
 void XmlOutput::closeTo(const QString &tag)
 {
     bool cont = true;
-    if (!tagStack.contains(tag) && tag != QString()) {
+    if (!tagStack.contains(tag) && !tag.isNull()) {
         //warn_msg(WarnLogic, "<%s>: Cannot close to tag <%s>, not on stack", tagStack.last().latin1(), tag.latin1());
         qDebug("<%s>: Cannot close to tag <%s>, not on stack", tagStack.last().toLatin1().constData(), tag.toLatin1().constData());
         return;
diff --git a/src/corelib/concurrent/qfuturewatcher.cpp b/src/corelib/concurrent/qfuturewatcher.cpp
index ea35e9e..39d7698 100644
--- a/src/corelib/concurrent/qfuturewatcher.cpp
+++ b/src/corelib/concurrent/qfuturewatcher.cpp
@@ -465,7 +465,7 @@ void QFutureWatcherBasePrivate::sendCallOutEvent(QFutureCallOutEvent *event)
                 break;
 
             emit q->progressValueChanged(event->index1);
-            if (event->text != QString()) // ###
+            if (!event->text.isNull()) // ###
                 q->progressTextChanged(event->text);
         break;
         case QFutureCallOutEvent::ProgressRange:
diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
index c21cf87..77ef096 100644
--- a/src/corelib/kernel/qcoreapplication.cpp
+++ b/src/corelib/kernel/qcoreapplication.cpp
@@ -1710,7 +1710,7 @@ QString QCoreApplication::applicationDirPath()
     }
 
     QCoreApplicationPrivate *d = self->d_func();
-    if (d->cachedApplicationDirPath == QString())
+    if (d->cachedApplicationDirPath.isNull())
         d->cachedApplicationDirPath = QFileInfo(applicationFilePath()).path();
     return d->cachedApplicationDirPath;
 }
@@ -1738,7 +1738,7 @@ QString QCoreApplication::applicationFilePath()
     }
 
     QCoreApplicationPrivate *d = self->d_func();
-    if (d->cachedApplicationFilePath != QString())
+    if (!d->cachedApplicationFilePath.isNull())
         return d->cachedApplicationFilePath;
 
 #if defined( Q_WS_WIN )
diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp
index b53e91f..b504604 100644
--- a/src/corelib/kernel/qvariant.cpp
+++ b/src/corelib/kernel/qvariant.cpp
@@ -1173,8 +1173,9 @@ const QVariant::Handler *QVariant::handler = &qt_kernel_variant_handler;
     and versatile, but may prove less memory and speed efficient than
     storing specific types in standard data structures.
 
-    QVariant also supports the notion of null values, where you have
-    a defined type with no value set.
+    QVariant also supports the notion of null values, where you can 
+    have a defined type with no value set. However, note that QVariant 
+    types can only be cast when they have had a value set.
 
     \snippet doc/src/snippets/code/src_corelib_kernel_qvariant.cpp 1
 
diff --git a/src/corelib/tools/qtimeline.cpp b/src/corelib/tools/qtimeline.cpp
index 2979a09..3a03558 100644
--- a/src/corelib/tools/qtimeline.cpp
+++ b/src/corelib/tools/qtimeline.cpp
@@ -225,7 +225,9 @@ void QTimeLinePrivate::setCurrentTime(int msecs)
     valueForTime() and emitting valueChanged(). By default, valueForTime()
     applies an interpolation algorithm to generate these value. You can choose
     from a set of predefined timeline algorithms by calling
-    setCurveShape(). By default, QTimeLine uses the EaseInOut curve shape,
+    setCurveShape().
+   
+    Note that by default, QTimeLine uses the EaseInOut curve shape,
     which provides a value that grows slowly, then grows steadily, and
     finally grows slowly. For a custom timeline, you can reimplement
     valueForTime(), in which case QTimeLine's curveShape property is ignored.
diff --git a/src/gui/dialogs/qsidebar.cpp b/src/gui/dialogs/qsidebar.cpp
index 26108d7..000a06b 100644
--- a/src/gui/dialogs/qsidebar.cpp
+++ b/src/gui/dialogs/qsidebar.cpp
@@ -249,9 +249,9 @@ void QUrlModel::addUrls(const QList<QUrl> &list, int row, bool move)
             continue;
         for (int j = 0; move && j < rowCount(); ++j) {
 #if defined(Q_OS_WIN)
-            if (index(j, 0).data(UrlRole).toUrl().toLocalFile().toLower() == url.toLocalFile().toLower()) {
+            if (QDir::cleanPath(index(j, 0).data(UrlRole).toUrl().toLocalFile()).toLower() == QDir::cleanPath(url.toLocalFile()).toLower()) {
 #else
-            if (index(j, 0).data(UrlRole) == url) {
+            if (QDir::cleanPath(index(j, 0).data(UrlRole).toUrl().toLocalFile()) == QDir::cleanPath(url.toLocalFile())) {
 #endif
                 removeRow(j);
                 if (j <= row)
diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index 743c16d..aa55908 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -2618,6 +2618,10 @@ QTransform QGraphicsItem::sceneTransform() const
 */
 QTransform QGraphicsItem::deviceTransform(const QTransform &viewportTransform) const
 {
+    // Ensure we return the standard transform if we're not untransformable.
+    if (!d_ptr->itemIsUntransformable())
+        return sceneTransform() * viewportTransform;
+
     // Find the topmost item that ignores view transformations.
     const QGraphicsItem *untransformedAncestor = this;
     QList<const QGraphicsItem *> parents;
diff --git a/src/gui/graphicsview/qgraphicsscene.cpp b/src/gui/graphicsview/qgraphicsscene.cpp
index 9892d36..c421f05 100644
--- a/src/gui/graphicsview/qgraphicsscene.cpp
+++ b/src/gui/graphicsview/qgraphicsscene.cpp
@@ -2325,12 +2325,7 @@ void QGraphicsScene::render(QPainter *painter, const QRectF &target, const QRect
         // Calculate a simple level-of-detail metric.
         // ### almost identical code in QGraphicsView::paintEvent()
         //     and QGraphicsView::render() - consider refactoring
-        QTransform itemToDeviceTransform;
-        if (item->d_ptr->itemIsUntransformable()) {
-            itemToDeviceTransform = item->deviceTransform(painterTransform);
-        } else {
-            itemToDeviceTransform = item->sceneTransform() * painterTransform;
-        }
+        QTransform itemToDeviceTransform = item->deviceTransform(painterTransform);
 
         option.levelOfDetail = qSqrt(itemToDeviceTransform.map(v1).length() * itemToDeviceTransform.map(v2).length());
         option.matrix = itemToDeviceTransform.toAffine(); //### discards perspective
@@ -5134,11 +5129,7 @@ void QGraphicsScene::drawItems(QPainter *painter,
                 // optimization, but it's hit very rarely.
                 for (int i = clippers.size() - 1; i >= 0; --i) {
                     QGraphicsItem *clipper = clippers[i];
-                    if (clipper->d_ptr->itemIsUntransformable()) {
-                        painter->setWorldTransform(clipper->deviceTransform(viewTransform), false);
-                    } else {
-                        painter->setWorldTransform(clipper->sceneTransform() * viewTransform, false);
-                    }
+                    painter->setWorldTransform(clipper->deviceTransform(viewTransform), false);
 
                     childClippers.append(clipper);
                     painter->save();
@@ -5149,12 +5140,8 @@ void QGraphicsScene::drawItems(QPainter *painter,
         }
 
         // Set up the painter transform
-        if (item->d_ptr->itemIsUntransformable()) {
-            painter->setWorldTransform(item->deviceTransform(viewTransform), false);
-        } else {
-            painter->setWorldTransform(item->sceneTransform() * viewTransform, false);
-        }
-       
+        painter->setWorldTransform(item->deviceTransform(viewTransform), false);
+
         // Save painter
         bool saveState = (d->painterStateProtection || (item->flags() & QGraphicsItem::ItemClipsToShape));
         if (saveState)
diff --git a/src/gui/graphicsview/qgraphicsview.cpp b/src/gui/graphicsview/qgraphicsview.cpp
index 5e33896..7181045 100644
--- a/src/gui/graphicsview/qgraphicsview.cpp
+++ b/src/gui/graphicsview/qgraphicsview.cpp
@@ -1163,11 +1163,7 @@ void QGraphicsViewPrivate::generateStyleOptions(const QList<QGraphicsItem *> &it
         // Calculate a simple level-of-detail metric.
         // ### almost identical code in QGraphicsScene::render()
         //     and QGraphicsView::render() - consider refactoring
-        if (item->d_ptr->itemIsUntransformable()) {
-            itemToViewportTransform = item->deviceTransform(worldTransform);
-        } else {
-            itemToViewportTransform = item->sceneTransform() * worldTransform;
-        }
+        itemToViewportTransform = item->deviceTransform(worldTransform);
 
         if (itemToViewportTransform.type() <= QTransform::TxTranslate) {
             // Translation and rotation only? The LOD is 1.
@@ -2176,12 +2172,7 @@ void QGraphicsView::render(QPainter *painter, const QRectF &target, const QRect
         // Calculate a simple level-of-detail metric.
         // ### almost identical code in QGraphicsScene::render()
         //     and QGraphicsView::paintEvent() - consider refactoring
-        QTransform itemToViewportTransform;
-        if (item->d_ptr->itemIsUntransformable()) {
-            itemToViewportTransform = item->deviceTransform(painterMatrix);
-        } else {
-            itemToViewportTransform = item->sceneTransform() * painterMatrix;
-        }
+        QTransform itemToViewportTransform = item->deviceTransform(painterMatrix);
 
         option->levelOfDetail = qSqrt(itemToViewportTransform.map(v1).length() * itemToViewportTransform.map(v2).length());
         option->matrix = itemToViewportTransform.toAffine();
diff --git a/src/gui/kernel/qapplication.cpp b/src/gui/kernel/qapplication.cpp
index b9ebf55..824d6f1 100644
--- a/src/gui/kernel/qapplication.cpp
+++ b/src/gui/kernel/qapplication.cpp
@@ -2022,12 +2022,10 @@ QWidget *QApplication::focusWidget()
 
 void QApplicationPrivate::setFocusWidget(QWidget *focus, Qt::FocusReason reason)
 {
-    if (focus && focus->window()
 #ifndef QT_NO_GRAPHICSVIEW
-        && focus->window()->graphicsProxyWidget()
-#endif
-       )
+    if (focus && focus->window()->graphicsProxyWidget())
         return;
+#endif
 
     hidden_focus_widget = 0;
 
diff --git a/src/gui/kernel/qwidget_mac.mm b/src/gui/kernel/qwidget_mac.mm
index 6524bc9..cc291e3 100644
--- a/src/gui/kernel/qwidget_mac.mm
+++ b/src/gui/kernel/qwidget_mac.mm
@@ -781,16 +781,6 @@ OSStatus QWidgetPrivate::qt_window_event(EventHandlerCallRef er, EventRef event,
             // By also setting the current modal window back into the event, we
             // help Carbon determining which window is supposed to be raised.
             handled_event = qApp->activePopupWidget() ? true : false;
-            QWidget *top = 0;
-            if (!QApplicationPrivate::tryModalHelper(widget, &top) && top && top != widget){
-                if(!qt_mac_is_macsheet(top) || top->parentWidget() != widget) {
-                    handled_event = true;
-                    WindowPtr topWindowRef = qt_mac_window_for(top);
-                    SetEventParameter(event, kEventParamModalWindow, typeWindowRef, sizeof(topWindowRef), &topWindowRef);
-                    HIModalClickResult clickResult = kHIModalClickIsModal;
-                    SetEventParameter(event, kEventParamModalClickResult, typeModalClickResult, sizeof(clickResult), &clickResult);
-                }
-            }
 #endif
         } else if(ekind == kEventWindowClose) {
             widget->d_func()->close_helper(QWidgetPrivate::CloseWithSpontaneousEvent);
diff --git a/src/gui/painting/qtextureglyphcache.cpp b/src/gui/painting/qtextureglyphcache.cpp
index 1ea40ba..3fd1ffb 100644
--- a/src/gui/painting/qtextureglyphcache.cpp
+++ b/src/gui/painting/qtextureglyphcache.cpp
@@ -88,11 +88,12 @@ void QTextureGlyphCache::populate(const QTextItemInt &ti,
                ti.ascent.toReal(),
                ti.descent.toReal());
 #endif
-        int glyph_width = metrics.width.ceil().toInt() + margin * 2;
-        int glyph_height = metrics.height.ceil().toInt() + margin * 2;
+        int glyph_width = metrics.width.ceil().toInt();
+        int glyph_height = metrics.height.ceil().toInt();
         if (glyph_height == 0 || glyph_width == 0)
             continue;
-
+        glyph_width += margin * 2 + 2;
+        glyph_height += margin * 2 + 2;
         // align to 8-bit boundary
         if (m_type == QFontEngineGlyphCache::Raster_Mono)
             glyph_width = (glyph_width+7)&~7;
@@ -188,11 +189,7 @@ void QImageTextureGlyphCache::createTextureData(int width, int height)
 
 int QImageTextureGlyphCache::glyphMargin() const
 {
-#ifdef Q_WS_MAC
     return 2;
-#else
-    return m_type == QFontEngineGlyphCache::Raster_RGBMask ? 2 : 0;
-#endif
 }
 
 void QImageTextureGlyphCache::fillTexture(const Coord &c, glyph_t g)
diff --git a/src/gui/text/qfontengine_win.cpp b/src/gui/text/qfontengine_win.cpp
index 6551e87..feea1f2 100644
--- a/src/gui/text/qfontengine_win.cpp
+++ b/src/gui/text/qfontengine_win.cpp
@@ -1406,8 +1406,8 @@ QNativeImage *QFontEngineWin::drawGDIGlyph(HFONT font, glyph_t glyph, int margin
 #endif
 #endif
 
-    QNativeImage *ni = new QNativeImage(iw + 2 * margin,
-                                        ih + 2 * margin,
+    QNativeImage *ni = new QNativeImage(iw + 2 * margin + 2,
+                                        ih + 2 * margin + 2,
                                         QNativeImage::systemFormat(), true);
     ni->image.fill(0xffffffff);
 
@@ -1449,7 +1449,7 @@ QImage QFontEngineWin::alphaMapForGlyph(glyph_t glyph, const QTransform &xform)
         font = CreateFontIndirectW(&lf);
     }
 
-    QNativeImage *mask = drawGDIGlyph(font, glyph, 0, xform);
+    QNativeImage *mask = drawGDIGlyph(font, glyph, 2, xform);
     if (mask == 0)
         return QImage();
 
diff --git a/src/gui/widgets/qmenu_wince.cpp b/src/gui/widgets/qmenu_wince.cpp
index 0befa6d..2ce89f9 100644
--- a/src/gui/widgets/qmenu_wince.cpp
+++ b/src/gui/widgets/qmenu_wince.cpp
@@ -214,7 +214,7 @@ static HWND qt_wce_create_menubar(HWND parentHandle, HINSTANCE resourceHandle, i
         mbi.nToolBarId = toolbarID;
 
         if (ptrCreateMenuBar(&mbi)) {
-#ifdef Q_WS_WINCE_WM
+#ifdef Q_OS_WINCE_WM
             // Tell the menu bar that we want to override hot key behaviour.
             LPARAM lparam = MAKELPARAM(SHMBOF_NODEFAULT | SHMBOF_NOTIFY,
                                        SHMBOF_NODEFAULT | SHMBOF_NOTIFY);
diff --git a/src/network/access/qnetworkaccesshttpbackend.cpp b/src/network/access/qnetworkaccesshttpbackend.cpp
index 7d0438e..bd364cb 100644
--- a/src/network/access/qnetworkaccesshttpbackend.cpp
+++ b/src/network/access/qnetworkaccesshttpbackend.cpp
@@ -973,21 +973,39 @@ QNetworkCacheMetaData QNetworkAccessHttpBackend::fetchCacheMetaData(const QNetwo
     if (it != cacheHeaders.rawHeaders.constEnd())
         metaData.setLastModified(QNetworkHeadersPrivate::fromHttpDate(it->second));
 
-    bool canDiskCache = true; // Everything defaults to being cacheable on disk
-
-    // 14.32
-    // HTTP/1.1 caches SHOULD treat "Pragma: no-cache" as if the client
-    // had sent "Cache-Control: no-cache".
-    it = cacheHeaders.findRawHeader("pragma");
-    if (it != cacheHeaders.rawHeaders.constEnd()
-        && it->second == "no-cache")
-        canDiskCache = false;
+    bool canDiskCache;
+    // only cache GET replies by default, all other replies (POST, PUT, DELETE)
+    //  are not cacheable by default (according to RFC 2616 section 9)
+    if (httpReply->request().operation() == QHttpNetworkRequest::Get) {
+
+        canDiskCache = true;
+        // 14.32
+        // HTTP/1.1 caches SHOULD treat "Pragma: no-cache" as if the client
+        // had sent "Cache-Control: no-cache".
+        it = cacheHeaders.findRawHeader("pragma");
+        if (it != cacheHeaders.rawHeaders.constEnd()
+            && it->second == "no-cache")
+            canDiskCache = false;
+
+        // HTTP/1.1. Check the Cache-Control header
+        if (cacheControl.contains("no-cache"))
+            canDiskCache = false;
+        else if (cacheControl.contains("no-store"))
+            canDiskCache = false;
+
+    // responses to POST might be cacheable
+    } else if (httpReply->request().operation() == QHttpNetworkRequest::Post) {
 
-    // HTTP/1.1. Check the Cache-Control header
-    if (cacheControl.contains("no-cache"))
         canDiskCache = false;
-    else if (cacheControl.contains("no-store"))
+        // some pages contain "expires:" and "cache-control: no-cache" field,
+        // so we only might cache POST requests if we get "cache-control: max-age ..."
+        if (cacheControl.contains("max-age"))
+            canDiskCache = true;
+
+    // responses to PUT and DELETE are not cacheable
+    } else {
         canDiskCache = false;
+    }
 
     metaData.setSaveToDisk(canDiskCache);
     int statusCode = httpReply->statusCode();
diff --git a/src/sql/drivers/ibase/qsql_ibase.cpp b/src/sql/drivers/ibase/qsql_ibase.cpp
index 6834d9a..4f3d79d 100644
--- a/src/sql/drivers/ibase/qsql_ibase.cpp
+++ b/src/sql/drivers/ibase/qsql_ibase.cpp
@@ -66,8 +66,11 @@ QT_BEGIN_NAMESPACE
 
 enum { QIBaseChunkSize = SHRT_MAX / 2 };
 
-static bool getIBaseError(QString& msg, ISC_STATUS* status, ISC_LONG &sqlcode,
-                          QTextCodec *tc)
+#if defined(FB_API_VER) && FB_API_VER >= 20
+static bool getIBaseError(QString& msg, const ISC_STATUS* status, ISC_LONG &sqlcode, QTextCodec *tc)
+#else
+static bool getIBaseError(QString& msg, ISC_STATUS* status, ISC_LONG &sqlcode, QTextCodec *tc)
+#endif
 {
     if (status[0] != 1 || status[1] <= 0)
         return false;
@@ -75,7 +78,11 @@ static bool getIBaseError(QString& msg, ISC_STATUS* status, ISC_LONG &sqlcode,
     msg.clear();
     sqlcode = isc_sqlcode(status);
     char buf[512];
+#if defined(FB_API_VER) && FB_API_VER >= 20
+    while(fb_interpret(buf, 512, &status)) {
+#else
     while(isc_interprete(buf, &status)) {
+#endif
         if(!msg.isEmpty())
             msg += QLatin1String(" - ");
         if (tc)
diff --git a/tests/auto/qgraphicsitem/tst_qgraphicsitem.cpp b/tests/auto/qgraphicsitem/tst_qgraphicsitem.cpp
index 3b9895d..8602307 100644
--- a/tests/auto/qgraphicsitem/tst_qgraphicsitem.cpp
+++ b/tests/auto/qgraphicsitem/tst_qgraphicsitem.cpp
@@ -217,6 +217,8 @@ private slots:
     void tabChangesFocus_data();
     void cacheMode();
     void updateCachedItemAfterMove();
+    void deviceTransform_data();
+    void deviceTransform();
 
     // task specific tests below me
     void task141694_textItemEnsureVisible();
@@ -6271,5 +6273,113 @@ void tst_QGraphicsItem::updateCachedItemAfterMove()
     QCOMPARE(tester->repaints, 1);
 }
 
+class Track : public QGraphicsRectItem
+{
+public:
+    Track(const QRectF &rect)
+        : QGraphicsRectItem(rect)
+    {
+        setAcceptHoverEvents(true);
+    }
+
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0)
+    {
+        QGraphicsRectItem::paint(painter, option, widget);
+        painter->drawText(boundingRect(), Qt::AlignCenter, QString("%1x%2\n%3x%4").arg(p.x()).arg(p.y()).arg(sp.x()).arg(sp.y()));
+    }
+    
+protected:
+    void hoverMoveEvent(QGraphicsSceneHoverEvent *event)
+    {
+        p = event->pos();
+        sp = event->widget()->mapFromGlobal(event->screenPos());
+        update();
+    }
+private:
+    QPointF p;
+    QPoint sp;
+};
+
+void tst_QGraphicsItem::deviceTransform_data()
+{
+    QTest::addColumn<bool>("untransformable1");
+    QTest::addColumn<bool>("untransformable2");
+    QTest::addColumn<bool>("untransformable3");
+    QTest::addColumn<qreal>("rotation1");
+    QTest::addColumn<qreal>("rotation2");
+    QTest::addColumn<qreal>("rotation3");
+    QTest::addColumn<QTransform>("deviceX");
+    QTest::addColumn<QPointF>("mapResult1");
+    QTest::addColumn<QPointF>("mapResult2");
+    QTest::addColumn<QPointF>("mapResult3");
+
+    QTest::newRow("nil") << false << false << false
+                         << qreal(0.0) << qreal(0.0) << qreal(0.0)
+                         << QTransform()
+                         << QPointF(150, 150) << QPointF(250, 250) << QPointF(350, 350);
+    QTest::newRow("deviceX rot 90") << false << false << false
+                         << qreal(0.0) << qreal(0.0) << qreal(0.0)
+                         << QTransform().rotate(90)
+                         << QPointF(-150, 150) << QPointF(-250, 250) << QPointF(-350, 350);
+    QTest::newRow("deviceX rot 90 100") << true << false << false
+                         << qreal(0.0) << qreal(0.0) << qreal(0.0)
+                         << QTransform().rotate(90)
+                         << QPointF(-50, 150) << QPointF(50, 250) << QPointF(150, 350);
+    QTest::newRow("deviceX rot 90 010") << false << true << false
+                         << qreal(0.0) << qreal(0.0) << qreal(0.0)
+                         << QTransform().rotate(90)
+                         << QPointF(-150, 150) << QPointF(-150, 250) << QPointF(-50, 350);
+    QTest::newRow("deviceX rot 90 001") << false << false << true
+                         << qreal(0.0) << qreal(0.0) << qreal(0.0)
+                         << QTransform().rotate(90)
+                         << QPointF(-150, 150) << QPointF(-250, 250) << QPointF(-250, 350);
+    QTest::newRow("deviceX rot 90 111") << true << true << true
+                         << qreal(0.0) << qreal(0.0) << qreal(0.0)
+                         << QTransform().rotate(90)
+                         << QPointF(-50, 150) << QPointF(50, 250) << QPointF(150, 350);
+    QTest::newRow("deviceX rot 90 101") << true << false << true
+                         << qreal(0.0) << qreal(0.0) << qreal(0.0)
+                         << QTransform().rotate(90)
+                         << QPointF(-50, 150) << QPointF(50, 250) << QPointF(150, 350);
+}
+
+void tst_QGraphicsItem::deviceTransform()
+{
+    QFETCH(bool, untransformable1);
+    QFETCH(bool, untransformable2);
+    QFETCH(bool, untransformable3);
+    QFETCH(qreal, rotation1);
+    QFETCH(qreal, rotation2);
+    QFETCH(qreal, rotation3);
+    QFETCH(QTransform, deviceX);
+    QFETCH(QPointF, mapResult1);
+    QFETCH(QPointF, mapResult2);
+    QFETCH(QPointF, mapResult3);
+
+    QGraphicsScene scene;
+    Track *rect1 = new Track(QRectF(0, 0, 100, 100));
+    Track *rect2 = new Track(QRectF(0, 0, 100, 100));
+    Track *rect3 = new Track(QRectF(0, 0, 100, 100));
+    rect2->setParentItem(rect1);
+    rect3->setParentItem(rect2);
+    rect1->setPos(100, 100);
+    rect2->setPos(100, 100);
+    rect3->setPos(100, 100);
+    rect1->rotate(rotation1);
+    rect2->rotate(rotation2);
+    rect3->rotate(rotation3);
+    rect1->setFlag(QGraphicsItem::ItemIgnoresTransformations, untransformable1);
+    rect2->setFlag(QGraphicsItem::ItemIgnoresTransformations, untransformable2);
+    rect3->setFlag(QGraphicsItem::ItemIgnoresTransformations, untransformable3);
+    rect1->setBrush(Qt::red);
+    rect2->setBrush(Qt::green);
+    rect3->setBrush(Qt::blue);
+    scene.addItem(rect1);
+
+    QCOMPARE(rect1->deviceTransform(deviceX).map(QPointF(50, 50)), mapResult1);
+    QCOMPARE(rect2->deviceTransform(deviceX).map(QPointF(50, 50)), mapResult2);
+    QCOMPARE(rect3->deviceTransform(deviceX).map(QPointF(50, 50)), mapResult3);
+}
+
 QTEST_MAIN(tst_QGraphicsItem)
 #include "tst_qgraphicsitem.moc"
diff --git a/tests/auto/qsidebar/tst_qsidebar.cpp b/tests/auto/qsidebar/tst_qsidebar.cpp
index 705e222..1384391 100644
--- a/tests/auto/qsidebar/tst_qsidebar.cpp
+++ b/tests/auto/qsidebar/tst_qsidebar.cpp
@@ -185,6 +185,13 @@ void tst_QSidebar::addUrls()
     qsidebar.addUrls(doubleUrls, 1);
     QCOMPARE(qsidebar.urls().size(), 1);
 
+    // Two paths that are effectively pointing to the same location
+    doubleUrls << QUrl::fromLocalFile(QDir::home().absolutePath());
+    doubleUrls << QUrl::fromLocalFile(QDir::home().absolutePath() + "/.");
+    qsidebar.setUrls(emptyUrls);
+    qsidebar.addUrls(doubleUrls, 1);
+    QCOMPARE(qsidebar.urls().size(), 1);
+
 #if defined(Q_OS_WIN)
     //Windows is case insensitive so no duplicate entries in that case
     doubleUrls << QUrl::fromLocalFile(QDir::home().absolutePath());
@@ -200,8 +207,6 @@ void tst_QSidebar::addUrls()
     qsidebar.addUrls(doubleUrls, 1);
     QCOMPARE(qsidebar.urls().size(), 2);
 #endif
-
-
 }
 
 void tst_QSidebar::goToUrl()
diff --git a/tools/configure/configureapp.cpp b/tools/configure/configureapp.cpp
index b0e7b53..8fd8c0a 100644
--- a/tools/configure/configureapp.cpp
+++ b/tools/configure/configureapp.cpp
@@ -350,6 +350,7 @@ Configure::Configure( int& argc, char** argv )
     dictionary[ "QMAKESPEC" ] = tmp;
 
     dictionary[ "INCREDIBUILD_XGE" ] = "auto";
+    dictionary[ "LTCG" ]            = "no";
 }
 
 Configure::~Configure()
@@ -486,6 +487,12 @@ void Configure::parseCmdLine()
         else if( configCmdLine.at(i) == "-commercial" ) {
             dictionary[ "BUILDTYPE" ] = "commercial";
         }
+        else if( configCmdLine.at(i) == "-ltcg" ) {
+            dictionary[ "LTCG" ] = "yes";
+        }
+        else if( configCmdLine.at(i) == "-no-ltcg" ) {
+            dictionary[ "LTCG" ] = "no";
+        }
 #endif
 
         else if( configCmdLine.at(i) == "-platform" ) {
@@ -1459,6 +1466,9 @@ bool Configure::displayHelp()
         desc("SHARED", "yes",   "-shared",              "Create and use shared Qt libraries.");
         desc("SHARED", "no",    "-static",              "Create and use static Qt libraries.\n");
 
+        desc("LTCG", "yes",   "-ltcg",                  "Use Link Time Code Generation. (Release builds only)");
+        desc("LTCG", "no",    "-no-ltcg",               "Do not use Link Time Code Generation.\n");
+
         desc("FAST", "no",      "-no-fast",             "Configure Qt normally by generating Makefiles for all project files.");
         desc("FAST", "yes",     "-fast",                "Configure Qt quickly by generating Makefiles only for library and "
                                                         "subdirectory targets.  All other Makefiles are created as wrappers "
@@ -2441,6 +2451,8 @@ void Configure::generateCachefile()
         else
             configStream << " static";
 
+        if( dictionary[ "LTCG" ] == "yes" )
+            configStream << " ltcg";
         if( dictionary[ "STL" ] == "yes" )
             configStream << " stl";
         if ( dictionary[ "EXCEPTIONS" ] == "yes" )
@@ -2862,6 +2874,7 @@ void Configure::displayConfig()
     cout << "Architecture................" << dictionary[ "ARCHITECTURE" ] << endl;
     cout << "Maketool...................." << dictionary[ "MAKE" ] << endl;
     cout << "Debug symbols..............." << (dictionary[ "BUILD" ] == "debug" ? "yes" : "no") << endl;
+    cout << "Link Time Code Generation..." << dictionary[ "LTCG" ] << endl;
     cout << "Accessibility support......." << dictionary[ "ACCESSIBILITY" ] << endl;
     cout << "STL support................." << dictionary[ "STL" ] << endl;
     cout << "Exception support..........." << dictionary[ "EXCEPTIONS" ] << endl;
diff --git a/tools/designer/src/lib/shared/formwindowbase.cpp b/tools/designer/src/lib/shared/formwindowbase.cpp
index 5be907b..377ae43 100644
--- a/tools/designer/src/lib/shared/formwindowbase.cpp
+++ b/tools/designer/src/lib/shared/formwindowbase.cpp
@@ -51,7 +51,7 @@
 #include "deviceprofile_p.h"
 #include "qdesigner_utils_p.h"
 
-#include <abstractformbuilder.h>
+#include "qsimpleresource_p.h"
 
 #include <QtDesigner/QDesignerFormEditorInterface>
 #include <QtDesigner/QDesignerContainerExtension>
@@ -478,6 +478,14 @@ void FormWindowBase::setupDefaultAction(QDesignerFormWindowInterface *fw)
     QObject::connect(fw, SIGNAL(activated(QWidget*)), fw, SLOT(triggerDefaultAction(QWidget*)));
 }
 
+QString FormWindowBase::fileContents() const
+{
+    const bool oldValue = QSimpleResource::setWarningsEnabled(false);
+    const QString rc = contents();
+    QSimpleResource::setWarningsEnabled(oldValue);
+    return rc;
+}
+
 } // namespace qdesigner_internal
 
 QT_END_NAMESPACE
diff --git a/tools/designer/src/lib/shared/formwindowbase_p.h b/tools/designer/src/lib/shared/formwindowbase_p.h
index 68e977e..0891f6e 100644
--- a/tools/designer/src/lib/shared/formwindowbase_p.h
+++ b/tools/designer/src/lib/shared/formwindowbase_p.h
@@ -90,6 +90,9 @@ public:
     QVariantMap formData();
     void setFormData(const QVariantMap &vm);
 
+    // Return contents without warnings. Should be 'contents(bool quiet)'
+    QString fileContents() const;
+
     // Return the widget containing the form. This is used to
     // apply embedded design settings to that are inherited (for example font).
     // These are meant to be applied to the form only and not to the other editors
diff --git a/tools/macdeployqt/shared/shared.cpp b/tools/macdeployqt/shared/shared.cpp
index a10e668..3b9ba73 100644
--- a/tools/macdeployqt/shared/shared.cpp
+++ b/tools/macdeployqt/shared/shared.cpp
@@ -357,7 +357,7 @@ DeploymentInfo deployQtFrameworks(QList<FrameworkInfo> frameworks,
         copiedFrameworks.append(framework.frameworkName);
 
         // Get the qt path from one of the Qt frameworks;
-        if (deploymenInfo.qtPath == QString() && framework.frameworkName.contains("Qt")
+        if (deploymenInfo.qtPath.isNull() && framework.frameworkName.contains("Qt") 
             && framework.frameworkDirectory.contains("/lib"))
         {
                 deploymenInfo.qtPath = framework.frameworkDirectory;
@@ -375,7 +375,7 @@ DeploymentInfo deployQtFrameworks(QList<FrameworkInfo> frameworks,
         // Copy farmework to app bundle.
         const QString deployedBinaryPath = copyFramework(framework, bundlePath);
         // Skip the rest if already was deployed.
-        if (deployedBinaryPath == QString())
+        if (deployedBinaryPath.isNull())
             continue;
 
         runStrip(deployedBinaryPath);
diff --git a/tools/porting/src/portingrules.cpp b/tools/porting/src/portingrules.cpp
index 4931064..cd29403 100644
--- a/tools/porting/src/portingrules.cpp
+++ b/tools/porting/src/portingrules.cpp
@@ -189,7 +189,7 @@ void PortingRules::parseXml(QString fileName)
 
     QString includeFile = xml[QLatin1String("Rules")][QLatin1String("Include")].text();
 
-    if(includeFile != QString()) {
+    if(!includeFile.isNull()) {
         QString resolvedIncludeFile = resolveFileName(fileName, includeFile);
         if (!resolvedIncludeFile.isEmpty())
             parseXml(resolvedIncludeFile);