4 files changed, 62 insertions, 4 deletions

diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index 9759b39911..d1c5fd2320 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -8007,6 +8007,8 @@ QPen QAbstractGraphicsShapeItem::pen() const
 void QAbstractGraphicsShapeItem::setPen(const QPen &pen)
 {
     Q_D(QAbstractGraphicsShapeItem);
+    if (d->pen == pen)
+        return;
     prepareGeometryChange();
     d->pen = pen;
     d->boundingRect = QRectF();
@@ -8037,6 +8039,8 @@ QBrush QAbstractGraphicsShapeItem::brush() const
 void QAbstractGraphicsShapeItem::setBrush(const QBrush &brush)
 {
     Q_D(QAbstractGraphicsShapeItem);
+    if (d->brush == brush)
+        return;
     d->brush = brush;
     update();
 }
@@ -9167,6 +9171,8 @@ QPen QGraphicsLineItem::pen() const
 void QGraphicsLineItem::setPen(const QPen &pen)
 {
     Q_D(QGraphicsLineItem);
+    if (d->pen == pen)
+        return;
     prepareGeometryChange();
     d->pen = pen;
     update();
diff --git a/src/gui/painting/qtextureglyphcache.cpp b/src/gui/painting/qtextureglyphcache.cpp
index 631a9cf8fa..bf57460239 100644
--- a/src/gui/painting/qtextureglyphcache.cpp
+++ b/src/gui/painting/qtextureglyphcache.cpp
@@ -140,6 +140,7 @@ void QTextureGlyphCache::populate(QFontEngine *fontEngine, int numGlyphs, const
             // no room on the current line, start new glyph strip
             m_cx = 0;
             m_cy += m_currentRowHeight + paddingDoubled;
+            m_cy += rowHeight;
             m_currentRowHeight = 0; // New row
         }
         if (m_cy + c.h > m_h) {
diff --git a/src/gui/styles/qmacstyle_mac.mm b/src/gui/styles/qmacstyle_mac.mm
index 074dd89731..f8fc126b89 100644
--- a/src/gui/styles/qmacstyle_mac.mm
+++ b/src/gui/styles/qmacstyle_mac.mm
@@ -5616,6 +5616,57 @@ QSize QMacStyle::sizeFromContents(ContentsType ct, const QStyleOption *opt,
          // hack to work around horrible sizeHint() code in QAbstractSpinBox
         sz.setHeight(sz.height() - 3);
         break;
+	case QStyle::CT_TabWidget:
+        // the size between the pane and the "contentsRect" (+4,+4)
+        // (the "contentsRect" is on the inside of the pane)
+        sz = QWindowsStyle::sizeFromContents(ct, opt, csz, widget);
+        /**
+            This is supposed to show the relationship between the tabBar and
+            the stack widget of a QTabWidget.
+            Unfortunately ascii is not a good way of representing graphics.....
+            PS: The '=' line is the painted frame.
+
+               top    ---+
+                         |
+                         |
+                         |
+                         |                vvv just outside the painted frame is the "pane"
+                      - -|- - - - - - - - - - <-+
+            TAB BAR      +=====^============    | +2 pixels
+                    - - -|- - -|- - - - - - - <-+
+                         |     |      ^   ^^^ just inside the painted frame is the "contentsRect"
+                         |     |      |
+                         |   overlap  |
+                         |     |      |
+            bottom ------+   <-+     +14 pixels
+                                      |
+                                      v
+                ------------------------------  <- top of stack widget
+
+
+        To summarize: 
+             * 2 is the distance between the pane and the contentsRect 
+             * The 14 and the 1's are the distance from the contentsRect to the stack widget.
+               (same value as used in SE_TabWidgetTabContents)
+             * overlap is how much the pane should overlap the tab bar
+        */	
+        // then add the size between the stackwidget and the "contentsRect"
+
+        if (const QStyleOptionTabWidgetFrame *twf
+                = qstyleoption_cast<const QStyleOptionTabWidgetFrame *>(opt)) {
+            QSize extra(0,0);
+            const int overlap = pixelMetric(PM_TabBarBaseOverlap, opt, widget);
+            const int gapBetweenTabbarAndStackWidget = 2 + 14 - overlap;
+
+            if (getTabDirection(twf->shape) == kThemeTabNorth || getTabDirection(twf->shape) == kThemeTabSouth) {
+                extra = QSize(2, gapBetweenTabbarAndStackWidget + 1);
+            } else {
+                extra = QSize(gapBetweenTabbarAndStackWidget + 1, 2);
+            }
+            sz+= extra;
+        }
+
+        break;
     case QStyle::CT_TabBarTab:
         if (const QStyleOptionTabV3 *tab = qstyleoption_cast<const QStyleOptionTabV3 *>(opt)) {
             const QAquaWidgetSize AquaSize = d->aquaSizeConstrain(opt, widget);
diff --git a/src/gui/widgets/qtabwidget.cpp b/src/gui/widgets/qtabwidget.cpp
index 047a905b3e..583c112093 100644
--- a/src/gui/widgets/qtabwidget.cpp
+++ b/src/gui/widgets/qtabwidget.cpp
@@ -814,8 +814,8 @@ QSize QTabWidget::sizeHint() const
 {
     Q_D(const QTabWidget);
     QSize lc(0, 0), rc(0, 0);
-    QStyleOption opt(0);
-    opt.init(this);
+    QStyleOptionTabWidgetFrameV2 opt;
+    initStyleOption(&opt);
     opt.state = QStyle::State_None;
 
     if (d->leftCornerWidget)
@@ -863,8 +863,8 @@ QSize QTabWidget::minimumSizeHint() const
 
     QSize sz = basicSize(d->pos == North || d->pos == South, lc, rc, s, t);
 
-    QStyleOption opt(0);
-    opt.rect = rect();
+    QStyleOptionTabWidgetFrameV2 opt;
+    initStyleOption(&opt);
     opt.palette = palette();
     opt.state = QStyle::State_None;
     return style()->sizeFromContents(QStyle::CT_TabWidget, &opt, sz, this)