Merge branch '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2 into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2: (48 commits)
  build fix for S60
  Improve handling of QAction in soft key manager
  Remove useless assert
  qdrawhelper: fix optim in 2245641ba
  QSlider and StyleSheet: fix one pixel error while drawing the SliderAddPage
  accelerate QWindowsPipeWriter for bigger chunks of data
  Fix antialiasing with transformed text in OpenGL2 paint engine
  Fix flattening of largely scaled, thin, dashed beziers.
  Increased the precision used to flatten beziers
  Fix QT_NO_MOVIE
  Fix compile error with QT_NO_ACTION in QtGui
  Fix QT_NO_COMPLETER
  Fix QT_NO_FSCOMPLETER
  Fix QT_NO_FILESYSTEMMODEL
  Build fix
  Safeguard ourselves against corrupt registry values for cleartype gamma
  fix cetest build properly
  qdrawhelper:  optimize the fetch transformed bilinear functions
  Compile fix for WinCE
  Make sure the selectionChanged signal is not called too much
  ...

11 files changed, 70 insertions, 19 deletions

diff --git a/src/gui/kernel/qaction.cpp b/src/gui/kernel/qaction.cpp
index 8ddd051..a6d2594 100644
--- a/src/gui/kernel/qaction.cpp
+++ b/src/gui/kernel/qaction.cpp
@@ -81,6 +81,7 @@ static QString qt_strippedText(QString s)
 
 QActionPrivate::QActionPrivate() : group(0), enabled(1), forceDisabled(0),
                                    visible(1), forceInvisible(0), checkable(0), checked(0), separator(0), fontSet(false),
+                                   forceEnabledInSoftkeys(false), menuActionSoftkeys(false),
                                    menuRole(QAction::TextHeuristicRole), softKeyRole(QAction::NoSoftKey),
                                    priority(QAction::NormalPriority), iconVisibleInMenu(-1)
 {
diff --git a/src/gui/kernel/qaction_p.h b/src/gui/kernel/qaction_p.h
index b57e5d2..899b01b 100644
--- a/src/gui/kernel/qaction_p.h
+++ b/src/gui/kernel/qaction_p.h
@@ -75,6 +75,11 @@ public:
     QActionPrivate();
     ~QActionPrivate();
 
+    static QActionPrivate *get(QAction *q)
+    {
+        return q->d_func();
+    }
+
     bool showStatusText(QWidget *w, const QString &str);
 
     QPointer<QActionGroup> group;
@@ -103,10 +108,16 @@ public:
     uint checked : 1;
     uint separator : 1;
     uint fontSet : 1;
-    QAction::MenuRole menuRole;
-    QAction::SoftKeyRole softKeyRole;
-    QAction::Priority priority;
+
+    //for soft keys management
+    uint forceEnabledInSoftkeys : 1;
+    uint menuActionSoftkeys : 1;
+
+    QAction::MenuRole menuRole : 3;
+    QAction::SoftKeyRole softKeyRole : 2;
+    QAction::Priority priority : 14;
     int iconVisibleInMenu : 3;  // Only has values -1, 0, and 1
+
     QList<QWidget *> widgets;
 #ifndef QT_NO_GRAPHICSVIEW
     QList<QGraphicsWidget *> graphicsWidgets;
diff --git a/src/gui/kernel/qlayoutitem.cpp b/src/gui/kernel/qlayoutitem.cpp
index 6a91d95..e615b2d 100644
--- a/src/gui/kernel/qlayoutitem.cpp
+++ b/src/gui/kernel/qlayoutitem.cpp
@@ -516,9 +516,7 @@ bool QWidgetItem::hasHeightForWidth() const
 {
     if (isEmpty())
         return false;
-    if (wid->layout())
-        return wid->layout()->hasHeightForWidth();
-    return wid->sizePolicy().hasHeightForWidth();
+    return wid->hasHeightForWidth();
 }
 
 /*!
diff --git a/src/gui/kernel/qsoftkeymanager.cpp b/src/gui/kernel/qsoftkeymanager.cpp
index 23f1481..04e4685 100644
--- a/src/gui/kernel/qsoftkeymanager.cpp
+++ b/src/gui/kernel/qsoftkeymanager.cpp
@@ -43,7 +43,7 @@
 #include "qevent.h"
 #include "qbitmap.h"
 #include "private/qsoftkeymanager_p.h"
-#include "private/qobject_p.h"
+#include "private/qaction_p.h"
 #include "private/qsoftkeymanager_common_p.h"
 
 #ifdef Q_WS_S60
@@ -104,7 +104,7 @@ QAction *QSoftKeyManager::createAction(StandardSoftKey standardKey, QWidget *act
     QAction::SoftKeyRole softKeyRole = QAction::NoSoftKey;
     switch (standardKey) {
     case MenuSoftKey: // FALL-THROUGH
-        action->setProperty(MENU_ACTION_PROPERTY, QVariant(true)); // TODO: can be refactored away to use _q_action_menubar
+        QActionPrivate::get(action)->menuActionSoftkeys = true;
     case OkSoftKey:
     case SelectSoftKey:
     case DoneSoftKey:
@@ -255,16 +255,12 @@ bool QSoftKeyManager::handleUpdateSoftKeys()
 
 void QSoftKeyManager::setForceEnabledInSoftkeys(QAction *action)
 {
-    action->setProperty(FORCE_ENABLED_PROPERTY, QVariant(true));
+    QActionPrivate::get(action)->forceEnabledInSoftkeys = true;
 }
 
 bool QSoftKeyManager::isForceEnabledInSofkeys(QAction *action)
 {
-    bool ret = false;
-    QVariant property = action->property(FORCE_ENABLED_PROPERTY);
-    if (property.isValid() && property.toBool())
-        ret = true;
-    return ret;
+    return QActionPrivate::get(action)->forceEnabledInSoftkeys;
 }
 
 bool QSoftKeyManager::event(QEvent *e)
diff --git a/src/gui/kernel/qsoftkeymanager_p.h b/src/gui/kernel/qsoftkeymanager_p.h
index a5b258b..6eedfa8 100644
--- a/src/gui/kernel/qsoftkeymanager_p.h
+++ b/src/gui/kernel/qsoftkeymanager_p.h
@@ -63,9 +63,6 @@ QT_BEGIN_NAMESPACE
 
 class QSoftKeyManagerPrivate;
 
-const char MENU_ACTION_PROPERTY[] = "_q_menuAction";
-const char FORCE_ENABLED_PROPERTY[] = "_q_forceEnabledInSoftkeys";
-
 class Q_AUTOTEST_EXPORT QSoftKeyManager : public QObject
 {
     Q_OBJECT
diff --git a/src/gui/kernel/qsoftkeymanager_s60.cpp b/src/gui/kernel/qsoftkeymanager_s60.cpp
index c0761f0..e4990b1 100644
--- a/src/gui/kernel/qsoftkeymanager_s60.cpp
+++ b/src/gui/kernel/qsoftkeymanager_s60.cpp
@@ -46,6 +46,7 @@
 #include "qmenubar.h"
 #include "private/qt_s60_p.h"
 #include "private/qmenu_p.h"
+#include "private/qaction_p.h"
 #include "private/qsoftkeymanager_p.h"
 #include "private/qsoftkeymanager_s60_p.h"
 #include "private/qobject_p.h"
@@ -382,8 +383,8 @@ bool QSoftKeyManagerPrivateS60::handleCommand(int command)
 {
     QAction *action = realSoftKeyActions.value(command);
     if (action) {
-        QVariant property = action->property(MENU_ACTION_PROPERTY);
-        if (property.isValid() && property.toBool()) {
+        bool property = QActionPrivate::get(action)->menuActionSoftkeys;
+        if (property) {
             QT_TRAP_THROWING(tryDisplayMenuBarL());
         } else if (action->menu()) {
             // TODO: This is hack, in order to use exising QMenuBar implementation for Symbian
diff --git a/src/gui/kernel/qstackedlayout.cpp b/src/gui/kernel/qstackedlayout.cpp
index 7559066..4b49638 100644
--- a/src/gui/kernel/qstackedlayout.cpp
+++ b/src/gui/kernel/qstackedlayout.cpp
@@ -475,6 +475,32 @@ void QStackedLayout::setGeometry(const QRect &rect)
     }
 }
 
+bool QStackedLayout::hasHeightForWidth() const
+{
+    const int n = count();
+
+    for (int i = 0; i < n; ++i) {
+        if (QLayoutItem *item = itemAt(i)) {
+            if (item->hasHeightForWidth())
+                return true;
+        }
+    }
+    return false;
+}
+
+int QStackedLayout::heightForWidth(int width) const
+{
+    const int n = count();
+
+    int hfw = 0;
+    for (int i = 0; i < n; ++i) {
+        if (QLayoutItem *item = itemAt(i)) {
+            hfw = qMax(hfw, item->heightForWidth(width));
+        }
+    }
+    return hfw;
+}
+
 /*!
     \enum QStackedLayout::StackingMode
     \since 4.4
diff --git a/src/gui/kernel/qstackedlayout.h b/src/gui/kernel/qstackedlayout.h
index c069149..842b62b 100644
--- a/src/gui/kernel/qstackedlayout.h
+++ b/src/gui/kernel/qstackedlayout.h
@@ -95,6 +95,8 @@ public:
     QLayoutItem *itemAt(int) const;
     QLayoutItem *takeAt(int);
     void setGeometry(const QRect &rect);
+    bool hasHeightForWidth() const;
+    int heightForWidth(int width) const;
 
 Q_SIGNALS:
     void widgetRemoved(int index);
diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index 4fba8cf..b19f7aa 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -3820,6 +3820,11 @@ void QWidget::setMaximumSize(int maxw, int maxh)
     d->updateGeometry_helper(d->extra->minw == d->extra->maxw && d->extra->minh == d->extra->maxh);
 }
 
+bool QWidgetPrivate::hasHeightForWidth() const
+{
+    return layout ? layout->hasHeightForWidth() : size_policy.hasHeightForWidth();
+}
+
 /*!
     \overload
 
@@ -7965,6 +7970,18 @@ QSize QWidget::minimumSizeHint() const
     return QSize(-1, -1);
 }
 
+/*!
+    \internal
+    This is a bit hackish, but ideally this would have been a virtual
+    function so that subclasses could reimplement their own function.
+    Instead we add a virtual function to QWidgetPrivate.
+*/
+bool QWidget::hasHeightForWidth() const
+{
+    Q_D(const QWidget);
+    return d->hasHeightForWidth();
+}
+
 
 /*!
     \fn QWidget *QWidget::parentWidget() const
diff --git a/src/gui/kernel/qwidget.h b/src/gui/kernel/qwidget.h
index e12148b..6e5de7d 100644
--- a/src/gui/kernel/qwidget.h
+++ b/src/gui/kernel/qwidget.h
@@ -524,6 +524,7 @@ public:
 
     virtual QSize sizeHint() const;
     virtual QSize minimumSizeHint() const;
+    bool hasHeightForWidth() const;
 
     QSizePolicy sizePolicy() const;
     void setSizePolicy(QSizePolicy);
diff --git a/src/gui/kernel/qwidget_p.h b/src/gui/kernel/qwidget_p.h
index 89ea256..05a859c 100644
--- a/src/gui/kernel/qwidget_p.h
+++ b/src/gui/kernel/qwidget_p.h
@@ -493,6 +493,7 @@ public:
 
     bool setMinimumSize_helper(int &minw, int &minh);
     bool setMaximumSize_helper(int &maxw, int &maxh);
+    virtual bool hasHeightForWidth() const;
     void setConstraints_sys();
     QWidget *childAt_helper(const QPoint &, bool) const;
     void updateGeometry_helper(bool forceUpdate);