Integrating QProxyStyle

This class adds convenient support for proxy styles in Qt.
Note that to support proper proxying, styles now
call their functions through proxy() so that the proxy regains control
over subcomponents. Note that there is a small price to be payed
by the extra function call which can at the cost of readability
be redirected to the private class member in the future.

Task-number: 229556
Reviewed-by: trond

1 files changed, 51 insertions, 51 deletions

diff --git a/src/gui/styles/qplastiquestyle.cpp b/src/gui/styles/qplastiquestyle.cpp
index 0a56213..725e1d5 100644
--- a/src/gui/styles/qplastiquestyle.cpp
+++ b/src/gui/styles/qplastiquestyle.cpp
@@ -1129,7 +1129,7 @@ void QPlastiqueStyle::drawPrimitive(PrimitiveElement element, const QStyleOption
 
     switch (element) {
     case PE_IndicatorButtonDropDown:
-        drawPrimitive(PE_PanelButtonTool, option, painter, widget);
+        proxy()->drawPrimitive(PE_PanelButtonTool, option, painter, widget);
         break;
     case PE_FrameDefaultButton: {
         if (!(option->state & QStyle::State_Enabled))
@@ -1175,7 +1175,7 @@ void QPlastiqueStyle::drawPrimitive(PrimitiveElement element, const QStyleOption
                 break;
             }
 
-            int borderThickness = pixelMetric(PM_TabBarBaseOverlap, twf, widget);
+            int borderThickness = proxy()->pixelMetric(PM_TabBarBaseOverlap, twf, widget);
             bool reverse = (twf->direction == Qt::RightToLeft);
 
             painter->save();
@@ -1354,7 +1354,7 @@ void QPlastiqueStyle::drawPrimitive(PrimitiveElement element, const QStyleOption
                 painter->setPen(oldPen);
             } else {
                 frameV2.state &= ~(State_Sunken | State_HasFocus);
-                drawPrimitive(PE_Frame, &frameV2, painter, widget);
+                proxy()->drawPrimitive(PE_Frame, &frameV2, painter, widget);
             }
         }
         break;
@@ -1853,13 +1853,13 @@ void QPlastiqueStyle::drawPrimitive(PrimitiveElement element, const QStyleOption
         QStyleOptionButton button;
         button.QStyleOption::operator=(*option);
         button.state &= ~State_MouseOver;
-        drawPrimitive(PE_IndicatorCheckBox, &button, painter, widget);
+        proxy()->drawPrimitive(PE_IndicatorCheckBox, &button, painter, widget);
         break;
     }
     case PE_FrameWindow: {
         painter->save();
         bool active = (option->state & State_Active);
-        int titleBarStop = option->rect.top() + pixelMetric(PM_TitleBarHeight, option, widget);
+        int titleBarStop = option->rect.top() + proxy()->pixelMetric(PM_TitleBarHeight, option, widget);
 
         QPalette palette = option->palette;
         if (!active)
@@ -2069,7 +2069,7 @@ void QPlastiqueStyle::drawControl(ControlElement element, const QStyleOption *op
                                && !leftCornerWidget;
             bool reverseShadow = false;
 
-            int borderThickness = pixelMetric(PM_TabBarBaseOverlap, tab, widget);
+            int borderThickness = proxy()->pixelMetric(PM_TabBarBaseOverlap, tab, widget);
             int marginLeft = 0;
             if ((atBeginning && !selected) || (selected && leftCornerWidget && ((tab->position == QStyleOptionTab::Beginning) || onlyTab))) {
                 marginLeft = 1;
@@ -2909,7 +2909,7 @@ void QPlastiqueStyle::drawControl(ControlElement element, const QStyleOption *op
                 int w = 0;
                 if (!menuItem->text.isEmpty()) {
                     painter->setFont(menuItem->font);
-                    drawItemText(painter, menuItem->rect.adjusted(5, 0, -5, 0), Qt::AlignLeft | Qt::AlignVCenter,
+                    proxy()->drawItemText(painter, menuItem->rect.adjusted(5, 0, -5, 0), Qt::AlignLeft | Qt::AlignVCenter,
                                  menuItem->palette, menuItem->state & State_Enabled, menuItem->text,
                                  QPalette::Text);
                     w = menuItem->fontMetrics.width(menuItem->text) + 5;
@@ -2952,7 +2952,7 @@ void QPlastiqueStyle::drawControl(ControlElement element, const QStyleOption *op
                     if (checked)
                         button.state |= State_On;
                     button.palette = menuItem->palette;
-                    drawPrimitive(PE_IndicatorRadioButton, &button, painter, widget);
+                    proxy()->drawPrimitive(PE_IndicatorRadioButton, &button, painter, widget);
                 } else {
                     if (menuItem->icon.isNull()) {
                         QStyleOptionButton button;
@@ -2961,7 +2961,7 @@ void QPlastiqueStyle::drawControl(ControlElement element, const QStyleOption *op
                         if (checked)
                             button.state |= State_On;
                         button.palette = menuItem->palette;
-                        drawPrimitive(PE_IndicatorCheckBox, &button, painter, widget);
+                        proxy()->drawPrimitive(PE_IndicatorCheckBox, &button, painter, widget);
                     } else if (checked) {
                         int iconSize = qMax(menuItem->maxIconWidth, 20);
                         QRect sunkenRect(option->rect.left() + 1,
@@ -3073,7 +3073,7 @@ void QPlastiqueStyle::drawControl(ControlElement element, const QStyleOption *op
                                            newMI.palette.highlightedText().color());
                 else
                     newMI.palette.setColor(QPalette::ButtonText, textBrush.color());
-                drawPrimitive(arrow, &newMI, painter, widget);
+                proxy()->drawPrimitive(arrow, &newMI, painter, widget);
             }
 
             painter->restore();
@@ -3570,7 +3570,7 @@ void QPlastiqueStyle::drawControl(ControlElement element, const QStyleOption *op
             // The SubLine (up/left) buttons
             QRect button1;
             QRect button2;
-            int scrollBarExtent = pixelMetric(PM_ScrollBarExtent, option, widget);
+            int scrollBarExtent = proxy()->pixelMetric(PM_ScrollBarExtent, option, widget);
             if (horizontal) {
                 button1.setRect(scrollBarSubLine.left(), scrollBarSubLine.top(), scrollBarExtent, scrollBarSubLine.height());
                 button2.setRect(scrollBarSubLine.right() - (scrollBarExtent - 1), scrollBarSubLine.top(), scrollBarExtent, scrollBarSubLine.height());
@@ -3710,7 +3710,7 @@ void QPlastiqueStyle::drawControl(ControlElement element, const QStyleOption *op
                                      pixmapRect.right() - 1, pixmapRect.bottom() - 1);
                     sliderPainter.drawLines(lines, 2);
 
-                    int sliderMinLength = pixelMetric(PM_ScrollBarSliderMin, scrollBar, widget);
+                    int sliderMinLength = proxy()->pixelMetric(PM_ScrollBarSliderMin, scrollBar, widget);
                     if ((horizontal && scrollBar->rect.width() > sliderMinLength)
                         || (!horizontal && scrollBar->rect.height() > sliderMinLength)) {
                         QImage pattern(horizontal ? qt_scrollbar_slider_pattern_horizontal
@@ -3749,7 +3749,7 @@ void QPlastiqueStyle::drawControl(ControlElement element, const QStyleOption *op
                 QWindowsStyle::drawControl(element, option, painter, widget);
             } else if (!comboBox->currentIcon.isNull()) {
                 {
-                    QRect editRect = subControlRect(CC_ComboBox, comboBox, SC_ComboBoxEditField, widget);
+                    QRect editRect = proxy()->subControlRect(CC_ComboBox, comboBox, SC_ComboBoxEditField, widget);
                     if (comboBox->direction == Qt::RightToLeft)
                         editRect.adjust(0, 2, -2, -2);
                     else
@@ -3766,7 +3766,7 @@ void QPlastiqueStyle::drawControl(ControlElement element, const QStyleOption *op
                                                Qt::AlignLeft | Qt::AlignVCenter,
                                                iconRect.size(), editRect);
                         painter->fillRect(iconRect, option->palette.brush(QPalette::Base));
-                        drawItemPixmap(painter, iconRect, Qt::AlignCenter, pixmap);
+                        proxy()->drawItemPixmap(painter, iconRect, Qt::AlignCenter, pixmap);
                     }
                     painter->restore();
                 }
@@ -3809,9 +3809,9 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
 #ifndef QT_NO_SLIDER
     case CC_Slider:
         if (const QStyleOptionSlider *slider = qstyleoption_cast<const QStyleOptionSlider *>(option)) {
-            QRect grooveRegion = subControlRect(CC_Slider, option, SC_SliderGroove, widget);
-            QRect handle = subControlRect(CC_Slider, option, SC_SliderHandle, widget);
-            QRect ticks = subControlRect(CC_Slider, option, SC_SliderTickmarks, widget);
+            QRect grooveRegion = proxy()->subControlRect(CC_Slider, option, SC_SliderGroove, widget);
+            QRect handle = proxy()->subControlRect(CC_Slider, option, SC_SliderHandle, widget);
+            QRect ticks = proxy()->subControlRect(CC_Slider, option, SC_SliderTickmarks, widget);
             bool horizontal = slider->orientation == Qt::Horizontal;
             bool ticksAbove = slider->tickPosition & QSlider::TicksAbove;
             bool ticksBelow = slider->tickPosition & QSlider::TicksBelow;
@@ -3972,15 +3972,15 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
                     QStyleOptionFocusRect fropt;
                     fropt.QStyleOption::operator=(*slider);
                     fropt.rect = subElementRect(SE_SliderFocusRect, slider, widget);
-                    drawPrimitive(PE_FrameFocusRect, &fropt, painter, widget);
+                    proxy()->drawPrimitive(PE_FrameFocusRect, &fropt, painter, widget);
                 }
             }
 
             if (option->subControls & SC_SliderTickmarks) {
                 QPen oldPen = painter->pen();
                 painter->setPen(borderColor);
-                int tickSize = pixelMetric(PM_SliderTickmarkOffset, option, widget);
-                int available = pixelMetric(PM_SliderSpaceAvailable, slider, widget);
+                int tickSize = proxy()->pixelMetric(PM_SliderTickmarkOffset, option, widget);
+                int available = proxy()->pixelMetric(PM_SliderSpaceAvailable, slider, widget);
                 int interval = slider->tickInterval;
                 if (interval <= 0) {
                     interval = slider->singleStep;
@@ -3994,7 +3994,7 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
                     interval = 1;
 
                 int v = slider->minimum;
-                int len = pixelMetric(PM_SliderLength, slider, widget);
+                int len = proxy()->pixelMetric(PM_SliderLength, slider, widget);
                 QVarLengthArray<QLine, 32> lines;
                 while (v <= slider->maximum + 1) {
                     if (v == slider->maximum + 1 && interval == 1)
@@ -4049,8 +4049,8 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
             bool reverse = (spinBox->direction == Qt::RightToLeft);
 
             // Rects
-            QRect upRect = subControlRect(CC_SpinBox, option, SC_SpinBoxUp, widget);
-            QRect downRect = subControlRect(CC_SpinBox, option, SC_SpinBoxDown, widget);
+            QRect upRect = proxy()->subControlRect(CC_SpinBox, option, SC_SpinBoxUp, widget);
+            QRect downRect = proxy()->subControlRect(CC_SpinBox, option, SC_SpinBoxDown, widget);
             QRect buttonRect = upRect | downRect;
 
             // Brushes
@@ -4071,7 +4071,7 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
             } else {
                 d->drawPartialFrame(painter,
                                     option,
-                                    subControlRect(CC_SpinBox, spinBox, SC_SpinBoxEditField, widget),
+                                    proxy()->subControlRect(CC_SpinBox, spinBox, SC_SpinBoxEditField, widget),
                                     widget);
             }
             // Paint buttons
@@ -4411,7 +4411,7 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
                 Q_D(const QPlastiqueStyle);
                 d->drawPartialFrame(painter,
                                 option,
-                                subControlRect(CC_ComboBox, option, SC_ComboBoxEditField, widget),
+                                proxy()->subControlRect(CC_ComboBox, option, SC_ComboBoxEditField, widget),
                                 widget);
 
                 QBrush border = qMapBrushToRect(option->palette.shadow(), buttonRect);
@@ -4535,7 +4535,7 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
                 if (!sunken) {
                     buttonOption.state &= ~State_Sunken;
                 }
-                drawPrimitive(PE_PanelButtonCommand, &buttonOption, painter, widget);
+                proxy()->drawPrimitive(PE_PanelButtonCommand, &buttonOption, painter, widget);
 
                 // Draw the menu button separator line
                 QBrush border = qMapBrushToRect(option->palette.shadow(), rect);
@@ -4571,9 +4571,9 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
             if ((option->state & State_HasFocus) && !comboBox->editable
                 && ((option->state & State_KeyboardFocusChange) || styleHint(SH_UnderlineShortcut, option, widget))) {
                 QStyleOptionFocusRect focus;
-                focus.rect = subControlRect(CC_ComboBox, option, SC_ComboBoxEditField, widget)
+                focus.rect = proxy()->subControlRect(CC_ComboBox, option, SC_ComboBoxEditField, widget)
                              .adjusted(-2, 0, 2, 0);
-                drawPrimitive(PE_FrameFocusRect, &focus, painter, widget);
+                proxy()->drawPrimitive(PE_FrameFocusRect, &focus, painter, widget);
             }
 
             painter->setPen(oldPen);
@@ -4603,7 +4603,7 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
                 QStyleOptionDockWidgetV2 dockwidget;
                 dockwidget.QStyleOption::operator=(*option);
                 dockwidget.title = titleBar->text;
-                drawControl(CE_DockWidgetTitle, &dockwidget, painter, widget);
+                proxy()->drawControl(CE_DockWidgetTitle, &dockwidget, painter, widget);
             } else
 #endif // QT3_SUPPORT
 
@@ -4676,7 +4676,7 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
                     }
                 }
                 // draw title
-                QRect textRect = subControlRect(CC_TitleBar, titleBar, SC_TitleBarLabel, widget);
+                QRect textRect = proxy()->subControlRect(CC_TitleBar, titleBar, SC_TitleBarLabel, widget);
 
                 QFont font = painter->font();
                 font.setBold(true);
@@ -4703,7 +4703,7 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
                 bool hover = (titleBar->activeSubControls & SC_TitleBarMinButton) && (titleBar->state & State_MouseOver);
                 bool sunken = (titleBar->activeSubControls & SC_TitleBarMinButton) && (titleBar->state & State_Sunken);
 
-                QRect minButtonRect = subControlRect(CC_TitleBar, titleBar, SC_TitleBarMinButton, widget);
+                QRect minButtonRect = proxy()->subControlRect(CC_TitleBar, titleBar, SC_TitleBarMinButton, widget);
                 qt_plastique_draw_mdibutton(painter, titleBar, minButtonRect, hover, sunken);
 
                 int xoffset = minButtonRect.width() / 3;
@@ -4747,7 +4747,7 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
                 bool hover = (titleBar->activeSubControls & SC_TitleBarMaxButton) && (titleBar->state & State_MouseOver);
                 bool sunken = (titleBar->activeSubControls & SC_TitleBarMaxButton) && (titleBar->state & State_Sunken);
 
-                QRect maxButtonRect = subControlRect(CC_TitleBar, titleBar, SC_TitleBarMaxButton, widget);
+                QRect maxButtonRect = proxy()->subControlRect(CC_TitleBar, titleBar, SC_TitleBarMaxButton, widget);
                 qt_plastique_draw_mdibutton(painter, titleBar, maxButtonRect, hover, sunken);
 
                 int xoffset = maxButtonRect.width() / 3;
@@ -4772,7 +4772,7 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
                 bool hover = (titleBar->activeSubControls & SC_TitleBarCloseButton) && (titleBar->state & State_MouseOver);
                 bool sunken = (titleBar->activeSubControls & SC_TitleBarCloseButton) && (titleBar->state & State_Sunken);
 
-                QRect closeButtonRect = subControlRect(CC_TitleBar, titleBar, SC_TitleBarCloseButton, widget);
+                QRect closeButtonRect = proxy()->subControlRect(CC_TitleBar, titleBar, SC_TitleBarCloseButton, widget);
                 qt_plastique_draw_mdibutton(painter, titleBar, closeButtonRect, hover, sunken);
 
                 int xoffset = closeButtonRect.width() / 3;
@@ -4818,7 +4818,7 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
                 bool hover = (titleBar->activeSubControls & SC_TitleBarNormalButton) && (titleBar->state & State_MouseOver);
                 bool sunken = (titleBar->activeSubControls & SC_TitleBarNormalButton) && (titleBar->state & State_Sunken);
 
-                QRect normalButtonRect = subControlRect(CC_TitleBar, titleBar, SC_TitleBarNormalButton, widget);
+                QRect normalButtonRect = proxy()->subControlRect(CC_TitleBar, titleBar, SC_TitleBarNormalButton, widget);
                 qt_plastique_draw_mdibutton(painter, titleBar, normalButtonRect, hover, sunken);
                 int xoffset = int(normalButtonRect.width() / 3.5);
                 int yoffset = int(normalButtonRect.height() / 3.5);
@@ -4864,7 +4864,7 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
                 bool hover = (titleBar->activeSubControls & SC_TitleBarContextHelpButton) && (titleBar->state & State_MouseOver);
                 bool sunken = (titleBar->activeSubControls & SC_TitleBarContextHelpButton) && (titleBar->state & State_Sunken);
 
-                QRect contextHelpButtonRect = subControlRect(CC_TitleBar, titleBar, SC_TitleBarContextHelpButton, widget);
+                QRect contextHelpButtonRect = proxy()->subControlRect(CC_TitleBar, titleBar, SC_TitleBarContextHelpButton, widget);
 
                 qt_plastique_draw_mdibutton(painter, titleBar, contextHelpButtonRect, hover, sunken);
 
@@ -4891,7 +4891,7 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
                 bool hover = (titleBar->activeSubControls & SC_TitleBarShadeButton) && (titleBar->state & State_MouseOver);
                 bool sunken = (titleBar->activeSubControls & SC_TitleBarShadeButton) && (titleBar->state & State_Sunken);
 
-                QRect shadeButtonRect = subControlRect(CC_TitleBar, titleBar, SC_TitleBarShadeButton, widget);
+                QRect shadeButtonRect = proxy()->subControlRect(CC_TitleBar, titleBar, SC_TitleBarShadeButton, widget);
                 qt_plastique_draw_mdibutton(painter, titleBar, shadeButtonRect, hover, sunken);
 
                 int xoffset = shadeButtonRect.width() / 3;
@@ -4915,7 +4915,7 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
                 bool hover = (titleBar->activeSubControls & SC_TitleBarUnshadeButton) && (titleBar->state & State_MouseOver);
                 bool sunken = (titleBar->activeSubControls & SC_TitleBarUnshadeButton) && (titleBar->state & State_Sunken);
 
-                QRect unshadeButtonRect = subControlRect(CC_TitleBar, titleBar, SC_TitleBarUnshadeButton, widget);
+                QRect unshadeButtonRect = proxy()->subControlRect(CC_TitleBar, titleBar, SC_TitleBarUnshadeButton, widget);
                 qt_plastique_draw_mdibutton(painter, titleBar, unshadeButtonRect, hover, sunken);
 
                 int xoffset = unshadeButtonRect.width() / 3;
@@ -4940,7 +4940,7 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
                 bool hover = (titleBar->activeSubControls & SC_TitleBarSysMenu) && (titleBar->state & State_MouseOver);
                 bool sunken = (titleBar->activeSubControls & SC_TitleBarSysMenu) && (titleBar->state & State_Sunken);
 
-                QRect iconRect = subControlRect(CC_TitleBar, titleBar, SC_TitleBarSysMenu, widget);
+                QRect iconRect = proxy()->subControlRect(CC_TitleBar, titleBar, SC_TitleBarSysMenu, widget);
                 if (hover)
                     qt_plastique_draw_mdibutton(painter, titleBar, iconRect, hover, sunken);
 
@@ -4952,7 +4952,7 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
                     QPixmap pm = standardPixmap(SP_TitleBarMenuButton, &tool, widget);
                     tool.rect = iconRect;
                     painter->save();
-                    drawItemPixmap(painter, iconRect, Qt::AlignCenter, pm);
+                    proxy()->drawItemPixmap(painter, iconRect, Qt::AlignCenter, pm);
                     painter->restore();
                 }
             }
@@ -4987,7 +4987,7 @@ QSize QPlastiqueStyle::sizeFromContents(ContentsType type, const QStyleOption *o
 #ifndef QT_NO_SLIDER
     case CT_Slider:
         if (const QStyleOptionSlider *slider = qstyleoption_cast<const QStyleOptionSlider *>(option)) {
-            int tickSize = pixelMetric(PM_SliderTickmarkOffset, option, widget);
+            int tickSize = proxy()->pixelMetric(PM_SliderTickmarkOffset, option, widget);
             if (slider->tickPosition & QSlider::TicksBelow) {
                 if (slider->orientation == Qt::Horizontal)
                     newSize.rheight() += tickSize;
@@ -5006,8 +5006,8 @@ QSize QPlastiqueStyle::sizeFromContents(ContentsType type, const QStyleOption *o
 #ifndef QT_NO_SCROLLBAR
     case CT_ScrollBar:
         if (const QStyleOptionSlider *scrollBar = qstyleoption_cast<const QStyleOptionSlider *>(option)) {
-            int scrollBarExtent = pixelMetric(PM_ScrollBarExtent, option, widget);
-            int scrollBarSliderMinimum = pixelMetric(PM_ScrollBarSliderMin, option, widget);
+            int scrollBarExtent = proxy()->pixelMetric(PM_ScrollBarExtent, option, widget);
+            int scrollBarSliderMinimum = proxy()->pixelMetric(PM_ScrollBarSliderMin, option, widget);
             if (scrollBar->orientation == Qt::Horizontal) {
                 newSize = QSize(scrollBarExtent * 3 + scrollBarSliderMinimum, scrollBarExtent);
             } else {
@@ -5088,7 +5088,7 @@ QRect QPlastiqueStyle::subControlRect(ComplexControl control, const QStyleOption
 #ifndef QT_NO_SLIDER
     case CC_Slider:
         if (const QStyleOptionSlider *slider = qstyleoption_cast<const QStyleOptionSlider *>(option)) {
-            int tickSize = pixelMetric(PM_SliderTickmarkOffset, option, widget);
+            int tickSize = proxy()->pixelMetric(PM_SliderTickmarkOffset, option, widget);
 
             switch (subControl) {
             case SC_SliderHandle:
@@ -5141,10 +5141,10 @@ QRect QPlastiqueStyle::subControlRect(ComplexControl control, const QStyleOption
 #ifndef QT_NO_SCROLLBAR
     case CC_ScrollBar:
         if (const QStyleOptionSlider *scrollBar = qstyleoption_cast<const QStyleOptionSlider *>(option)) {
-            int scrollBarExtent = pixelMetric(PM_ScrollBarExtent, scrollBar, widget);
+            int scrollBarExtent = proxy()->pixelMetric(PM_ScrollBarExtent, scrollBar, widget);
             int sliderMaxLength = ((scrollBar->orientation == Qt::Horizontal) ?
                                    scrollBar->rect.width() : scrollBar->rect.height()) - (scrollBarExtent * 3);
-            int sliderMinLength = pixelMetric(PM_ScrollBarSliderMin, scrollBar, widget);
+            int sliderMinLength = proxy()->pixelMetric(PM_ScrollBarSliderMin, scrollBar, widget);
             int sliderLength;
 
             // calculate slider length
@@ -5266,7 +5266,7 @@ QRect QPlastiqueStyle::subControlRect(ComplexControl control, const QStyleOption
             break;
         case SC_ComboBoxEditField: {
             if (const QStyleOptionComboBox *box = qstyleoption_cast<const QStyleOptionComboBox *>(option)) {
-                int frameWidth = pixelMetric(PM_DefaultFrameWidth);
+                int frameWidth = proxy()->pixelMetric(PM_DefaultFrameWidth);
                 rect = visualRect(option->direction, option->rect, rect);
 
                 if (box->editable) {
@@ -5471,31 +5471,31 @@ QStyle::SubControl QPlastiqueStyle::hitTestComplexControl(ComplexControl control
 #ifndef QT_NO_SCROLLBAR
     case CC_ScrollBar:
         if (const QStyleOptionSlider *scrollBar = qstyleoption_cast<const QStyleOptionSlider *>(option)) {
-            QRect slider = subControlRect(control, scrollBar, SC_ScrollBarSlider, widget);
+            QRect slider = proxy()->subControlRect(control, scrollBar, SC_ScrollBarSlider, widget);
             if (slider.contains(pos)) {
                 ret = SC_ScrollBarSlider;
                 break;
             }
 
-            QRect scrollBarAddLine = subControlRect(control, scrollBar, SC_ScrollBarAddLine, widget);
+            QRect scrollBarAddLine = proxy()->subControlRect(control, scrollBar, SC_ScrollBarAddLine, widget);
             if (scrollBarAddLine.contains(pos)) {
                 ret = SC_ScrollBarAddLine;
                 break;
             }
 
-            QRect scrollBarSubPage = subControlRect(control, scrollBar, SC_ScrollBarSubPage, widget);
+            QRect scrollBarSubPage = proxy()->subControlRect(control, scrollBar, SC_ScrollBarSubPage, widget);
             if (scrollBarSubPage.contains(pos)) {
                 ret = SC_ScrollBarSubPage;
                 break;
             }
 
-            QRect scrollBarAddPage = subControlRect(control, scrollBar, SC_ScrollBarAddPage, widget);
+            QRect scrollBarAddPage = proxy()->subControlRect(control, scrollBar, SC_ScrollBarAddPage, widget);
             if (scrollBarAddPage.contains(pos)) {
                 ret = SC_ScrollBarAddPage;
                 break;
             }
 
-            QRect scrollBarSubLine = subControlRect(control, scrollBar, SC_ScrollBarSubLine, widget);
+            QRect scrollBarSubLine = proxy()->subControlRect(control, scrollBar, SC_ScrollBarSubLine, widget);
             if (scrollBarSubLine.contains(pos)) {
                 ret = SC_ScrollBarSubLine;
                 break;