Extend style information structures slightly

src/kernel/qstyle.h

@@ -202,6 +202,7 @@ class QStyleControlElementGenericWidgetData {
 		QPixmap icon;
 		QPalette palette;
 		QFont font;
+		QColor paletteBgColor;
 };
 
 class QStyleControlElementTabBarData {
@@ -276,6 +277,9 @@ class Q_EXPORT QStyleControlElementData {
 		QRect sliderRect;
 		QPainter* activePainter;
 		QStyleControlElementToolBarWidgetData toolBarData;
+		Q_UINT32 comboBoxListBoxFlags;
+		QColor paletteBgColor;
+		Q_UINT32 parentWidgetFlags;
 
 	public:
 		QStyleControlElementData();
@@ -1050,6 +1054,12 @@ public:
 	// int - width of menu check column
 	SH_MenuIndicatorColumnWidth,
 
+	// bool - whether or not the lower two button drawing areas should be combined into one
+	SH_ScrollBar_CombineAddLineRegionDrawingAreas,
+
+	// bool - whether or not the upper two button drawing areas should be combined into one
+	SH_ScrollBar_CombineSubLineRegionDrawingAreas,
+
 	// do not add any values below/greater than this
 	SH_CustomBase =		0xf0000000
     };

src/styles/qcommonstyle.cpp

@@ -66,6 +66,7 @@
 #include "qradiobutton.h"
 #include "qbitmap.h"
 #include "qprogressbar.h"
+#include "qlistbox.h"
 #include "private/qdialogbuttons_p.h"
 #include <limits.h>
 #include <qpixmap.h>
@@ -265,6 +266,7 @@ QStyleControlElementData populateControlElementDataFromWidget(const QWidget* wid
 		if (populateReliantFields) {
 			ceData.fgColor = widget->foregroundColor();
 			ceData.colorGroup = widget->colorGroup();
+			ceData.paletteBgColor = widget->paletteBackgroundColor();
 		}
 		ceData.geometry = widget->geometry();
 		ceData.rect = widget->rect();
@@ -504,6 +506,7 @@ QStyleControlElementData populateControlElementDataFromWidget(const QWidget* wid
 					if (populateReliantFields) {
 						ceData.viewportData.fgColor = viewport->foregroundColor();
 						ceData.viewportData.colorGroup = viewport->colorGroup();
+						ceData.viewportData.paletteBgColor = viewport->paletteBackgroundColor();
 					}
 					ceData.viewportData.geometry = viewport->geometry();
 					ceData.viewportData.rect = viewport->rect();
@@ -524,6 +527,10 @@ QStyleControlElementData populateControlElementDataFromWidget(const QWidget* wid
 				if (lineEdit) {
 					ceData.comboBoxLineEditFlags = getControlElementFlagsForObject(lineEdit, ceData.widgetObjectTypes, QStyleOption::Default);
 				}
+				const QListBox* listBox = cb->listBox();
+				if (listBox) {
+					ceData.comboBoxListBoxFlags = getControlElementFlagsForObject(listBox, ceData.widgetObjectTypes, QStyleOption::Default);
+				}
 			}
 		}
 		if (ceData.widgetObjectTypes.contains("QFrame")) {
@@ -554,6 +561,7 @@ QStyleControlElementData populateControlElementDataFromWidget(const QWidget* wid
 			if (populateReliantFields) {
 				ceData.parentWidgetData.fgColor = parentWidget->foregroundColor();
 				ceData.parentWidgetData.colorGroup = parentWidget->colorGroup();
+				ceData.parentWidgetData.paletteBgColor = parentWidget->paletteBackgroundColor();
 			}
 			ceData.parentWidgetData.geometry = parentWidget->geometry();
 			ceData.parentWidgetData.rect = parentWidget->rect();
@@ -580,6 +588,7 @@ QStyleControlElementData populateControlElementDataFromWidget(const QWidget* wid
 			if (toolbar) {
 				ceData.toolBarData.orientation = toolbar->orientation();
 			}
+			ceData.parentWidgetFlags = getControlElementFlagsForObject(parentWidget, ceData.parentWidgetData.widgetObjectTypes, QStyleOption::Default, populateReliantFields);
 		}
 
 		QCheckListItem *item = opt.checkListItem();