Merge branch '4.6' of scm.dev.nokia.troll.no:qt/oslo-staging-1 into 4.6-integration

* '4.6' of scm.dev.nokia.troll.no:qt/oslo-staging-1: (70 commits)
  doc: Fixed the last qdoc errors.
  doc: Document the "Type" enum value as a const in variable.
  Designer: Add lower/raise to context menu.
  Compile with no-webkit - add missing semi-colons.
  Fixes visibility update missing when doing setParentItem on graphicsitem
  Stabilize tst_QGraphicsScene::polishItems2 (new test)
  Fixed an infinite loop that could occur when reading invalid BMP images.
  Updated docs regarding QGLWidget::renderText() limitations.
  Added optimization flag to QGraphicsItemPrivate.
  Fixed child items with graphics effects not inheriting opacity.
  Made the trace replayer handle limited resolution cases better.
  Small optimization in raster paint engine.
  Another ASSERT while deleting spans
  Implement QDirectFBPixmapData::scroll
  Potential crash when adding items from QGraphicsWidget::polishEvent().
  QGraphicsWidget is painted twice on the inital show.
  Fix QPainter::redirection() to pass autotest.
  Re-added the Close button in QPrintPreviewDialog for Mac/Carbon.
  revert parts of 10392eef4fd4f9
  Fix y-inverted pixmaps properly.
  ...

2 files changed, 108 insertions, 72 deletions

diff --git a/src/gui/styles/qmacstyle_mac.mm b/src/gui/styles/qmacstyle_mac.mm
index 97d69b2..f4af579 100644
--- a/src/gui/styles/qmacstyle_mac.mm
+++ b/src/gui/styles/qmacstyle_mac.mm
@@ -667,32 +667,47 @@ static QSize qt_aqua_get_known_size(QStyle::ContentsType ct, const QWidget *widg
 
     switch (ct) {
     case QStyle::CT_PushButton: {
-        const QPushButton *psh = static_cast<const QPushButton *>(widg);
-        QString buttonText = qt_mac_removeMnemonics(psh->text());
-        if (buttonText.contains(QLatin1Char('\n')))
-            ret = QSize(-1, -1);
-        else if (sz == QAquaSizeLarge)
-            ret = QSize(-1, qt_mac_aqua_get_metric(kThemeMetricPushButtonHeight));
-        else if (sz == QAquaSizeSmall)
-            ret = QSize(-1, qt_mac_aqua_get_metric(kThemeMetricSmallPushButtonHeight));
-        else if (sz == QAquaSizeMini)
-            ret = QSize(-1, qt_mac_aqua_get_metric(kThemeMetricMiniPushButtonHeight));
-
-        if (!psh->icon().isNull()){
-            // If the button got an icon, and the icon is larger than the
-            // button, we can't decide on a default size
-            ret.setWidth(-1);
-            if (ret.height() < psh->iconSize().height())
-                ret.setHeight(-1);
-        }
-        else if (buttonText == QLatin1String("OK") || buttonText == QLatin1String("Cancel")){
-            // Aqua Style guidelines restrict the size of OK and Cancel buttons to 68 pixels.
-            // However, this doesn't work for German, therefore only do it for English,
-            // I suppose it would be better to do some sort of lookups for languages
-            // that like to have really long words.
-            ret.setWidth(77 - 8);
-        }
-
+        const QPushButton *psh = qobject_cast<const QPushButton *>(widg);
+        // If this comparison is false, then the widget was not a push button.
+        // This is bad and there's very little we can do since we were requested to find a
+        // sensible size for a widget that pretends to be a QPushButton but is not.
+        if(psh) {
+            QString buttonText = qt_mac_removeMnemonics(psh->text());
+            if (buttonText.contains(QLatin1Char('\n')))
+                ret = QSize(-1, -1);
+            else if (sz == QAquaSizeLarge)
+                ret = QSize(-1, qt_mac_aqua_get_metric(kThemeMetricPushButtonHeight));
+            else if (sz == QAquaSizeSmall)
+                ret = QSize(-1, qt_mac_aqua_get_metric(kThemeMetricSmallPushButtonHeight));
+            else if (sz == QAquaSizeMini)
+                ret = QSize(-1, qt_mac_aqua_get_metric(kThemeMetricMiniPushButtonHeight));
+
+            if (!psh->icon().isNull()){
+                // If the button got an icon, and the icon is larger than the
+                // button, we can't decide on a default size
+                ret.setWidth(-1);
+                if (ret.height() < psh->iconSize().height())
+                    ret.setHeight(-1);
+            }
+            else if (buttonText == QLatin1String("OK") || buttonText == QLatin1String("Cancel")){
+                // Aqua Style guidelines restrict the size of OK and Cancel buttons to 68 pixels.
+                // However, this doesn't work for German, therefore only do it for English,
+                // I suppose it would be better to do some sort of lookups for languages
+                // that like to have really long words.
+                ret.setWidth(77 - 8);
+            }
+        } else {
+            // The only sensible thing to do is to return whatever the style suggests...
+            if (sz == QAquaSizeLarge)
+                ret = QSize(-1, qt_mac_aqua_get_metric(kThemeMetricPushButtonHeight));
+            else if (sz == QAquaSizeSmall)
+                ret = QSize(-1, qt_mac_aqua_get_metric(kThemeMetricSmallPushButtonHeight));
+            else if (sz == QAquaSizeMini)
+                ret = QSize(-1, qt_mac_aqua_get_metric(kThemeMetricMiniPushButtonHeight));
+            else
+                // Since there's no default size we return the large size...
+                ret = QSize(-1, qt_mac_aqua_get_metric(kThemeMetricPushButtonHeight));
+         }
 #if 0 //Not sure we are applying the rules correctly for RadioButtons/CheckBoxes --Sam
     } else if (ct == QStyle::CT_RadioButton) {
         QRadioButton *rdo = static_cast<QRadioButton *>(widg);
@@ -749,23 +764,30 @@ static QSize qt_aqua_get_known_size(QStyle::ContentsType ct, const QWidget *widg
         if (sz == QAquaSizeSmall) {
             int width = 0, height = 0;
             if (szHint == QSize(-1, -1)) { //just 'guess'..
-                const QToolButton *bt = static_cast<const QToolButton *>(widg);
-                if (!bt->icon().isNull()) {
-                    QSize iconSize = bt->iconSize();
-                    QSize pmSize = bt->icon().actualSize(QSize(32, 32), QIcon::Normal);
-                    width = qMax(width, qMax(iconSize.width(), pmSize.width()));
-                    height = qMax(height, qMax(iconSize.height(), pmSize.height()));
-                }
-                if (!bt->text().isNull() && bt->toolButtonStyle() != Qt::ToolButtonIconOnly) {
-                    int text_width = bt->fontMetrics().width(bt->text()),
-                       text_height = bt->fontMetrics().height();
-                    if (bt->toolButtonStyle() == Qt::ToolButtonTextUnderIcon) {
-                        width = qMax(width, text_width);
-                        height += text_height;
-                    } else {
-                        width += text_width;
-                        width = qMax(height, text_height);
+                const QToolButton *bt = qobject_cast<const QToolButton *>(widg);
+                // If this conversion fails then the widget was not what it claimed to be.
+                if(bt) {
+                    if (!bt->icon().isNull()) {
+                        QSize iconSize = bt->iconSize();
+                        QSize pmSize = bt->icon().actualSize(QSize(32, 32), QIcon::Normal);
+                        width = qMax(width, qMax(iconSize.width(), pmSize.width()));
+                        height = qMax(height, qMax(iconSize.height(), pmSize.height()));
+                    }
+                    if (!bt->text().isNull() && bt->toolButtonStyle() != Qt::ToolButtonIconOnly) {
+                        int text_width = bt->fontMetrics().width(bt->text()),
+                           text_height = bt->fontMetrics().height();
+                        if (bt->toolButtonStyle() == Qt::ToolButtonTextUnderIcon) {
+                            width = qMax(width, text_width);
+                            height += text_height;
+                        } else {
+                            width += text_width;
+                            width = qMax(height, text_height);
+                        }
                     }
+                } else {
+                    // Let's return the size hint...
+                    width = szHint.width();
+                    height = szHint.height();
                 }
             } else {
                 width = szHint.width();
@@ -778,37 +800,47 @@ static QSize qt_aqua_get_known_size(QStyle::ContentsType ct, const QWidget *widg
         break;
     case QStyle::CT_Slider: {
         int w = -1;
-        const QSlider *sld = static_cast<const QSlider *>(widg);
-        if (sz == QAquaSizeLarge) {
-            if (sld->orientation() == Qt::Horizontal) {
-                w = qt_mac_aqua_get_metric(kThemeMetricHSliderHeight);
-                if (sld->tickPosition() != QSlider::NoTicks)
-                    w += qt_mac_aqua_get_metric(kThemeMetricHSliderTickHeight);
-            } else {
-                w = qt_mac_aqua_get_metric(kThemeMetricVSliderWidth);
-                if (sld->tickPosition() != QSlider::NoTicks)
-                    w += qt_mac_aqua_get_metric(kThemeMetricVSliderTickWidth);
-            }
-        } else if (sz == QAquaSizeSmall) {
-            if (sld->orientation() == Qt::Horizontal) {
-                w = qt_mac_aqua_get_metric(kThemeMetricSmallHSliderHeight);
-                if (sld->tickPosition() != QSlider::NoTicks)
-                    w += qt_mac_aqua_get_metric(kThemeMetricSmallHSliderTickHeight);
-            } else {
-                w = qt_mac_aqua_get_metric(kThemeMetricSmallVSliderWidth);
-                if (sld->tickPosition() != QSlider::NoTicks)
-                    w += qt_mac_aqua_get_metric(kThemeMetricSmallVSliderTickWidth);
-            }
-        } else if (sz == QAquaSizeMini) {
-            if (sld->orientation() == Qt::Horizontal) {
-                w = qt_mac_aqua_get_metric(kThemeMetricMiniHSliderHeight);
-                if (sld->tickPosition() != QSlider::NoTicks)
-                    w += qt_mac_aqua_get_metric(kThemeMetricMiniHSliderTickHeight);
-            } else {
-                w = qt_mac_aqua_get_metric(kThemeMetricMiniVSliderWidth);
-                if (sld->tickPosition() != QSlider::NoTicks)
-                    w += qt_mac_aqua_get_metric(kThemeMetricMiniVSliderTickWidth);
+        const QSlider *sld = qobject_cast<const QSlider *>(widg);
+        // If this conversion fails then the widget was not what it claimed to be.
+        if(sld) {
+            if (sz == QAquaSizeLarge) {
+                if (sld->orientation() == Qt::Horizontal) {
+                    w = qt_mac_aqua_get_metric(kThemeMetricHSliderHeight);
+                    if (sld->tickPosition() != QSlider::NoTicks)
+                        w += qt_mac_aqua_get_metric(kThemeMetricHSliderTickHeight);
+                } else {
+                    w = qt_mac_aqua_get_metric(kThemeMetricVSliderWidth);
+                    if (sld->tickPosition() != QSlider::NoTicks)
+                        w += qt_mac_aqua_get_metric(kThemeMetricVSliderTickWidth);
+                }
+            } else if (sz == QAquaSizeSmall) {
+                if (sld->orientation() == Qt::Horizontal) {
+                    w = qt_mac_aqua_get_metric(kThemeMetricSmallHSliderHeight);
+                    if (sld->tickPosition() != QSlider::NoTicks)
+                        w += qt_mac_aqua_get_metric(kThemeMetricSmallHSliderTickHeight);
+                } else {
+                    w = qt_mac_aqua_get_metric(kThemeMetricSmallVSliderWidth);
+                    if (sld->tickPosition() != QSlider::NoTicks)
+                        w += qt_mac_aqua_get_metric(kThemeMetricSmallVSliderTickWidth);
+                }
+            } else if (sz == QAquaSizeMini) {
+                if (sld->orientation() == Qt::Horizontal) {
+                    w = qt_mac_aqua_get_metric(kThemeMetricMiniHSliderHeight);
+                    if (sld->tickPosition() != QSlider::NoTicks)
+                        w += qt_mac_aqua_get_metric(kThemeMetricMiniHSliderTickHeight);
+                } else {
+                    w = qt_mac_aqua_get_metric(kThemeMetricMiniVSliderWidth);
+                    if (sld->tickPosition() != QSlider::NoTicks)
+                        w += qt_mac_aqua_get_metric(kThemeMetricMiniVSliderTickWidth);
+                }
             }
+        } else {
+            // This is tricky, we were requested to find a size for a slider which is not
+            // a slider. We don't know if this is vertical or horizontal or if we need to
+            // have tick marks or not.
+            // For this case we will return an horizontal slider without tick marks.
+            w = qt_mac_aqua_get_metric(kThemeMetricHSliderHeight);
+            w += qt_mac_aqua_get_metric(kThemeMetricHSliderTickHeight);
         }
         if (sld->orientation() == Qt::Horizontal)
             ret.setHeight(w);
diff --git a/src/gui/styles/qs60style.cpp b/src/gui/styles/qs60style.cpp
index 78279d1..9b99161 100644
--- a/src/gui/styles/qs60style.cpp
+++ b/src/gui/styles/qs60style.cpp
@@ -3168,6 +3168,10 @@ bool QS60Style::eventFilter(QObject *object, QEvent *event)
     return QStyle::eventFilter(object, event);
 }
 
+/*!
+    \internal
+    Handle the timer \a event. 
+*/
 void QS60Style::timerEvent(QTimerEvent *event)
 {
 #ifdef Q_WS_S60