Merge remote-tracking branch 'origin/5.15' into dev

Change-Id: Ia2ce994c42adc010c453edaeea57f672556958f6

3 files changed, 35 insertions, 0 deletions

diff --git a/src/widgets/styles/qstyleoption.cpp b/src/widgets/styles/qstyleoption.cpp
index 4b861d938e..5a2ca2f2e7 100644
--- a/src/widgets/styles/qstyleoption.cpp
+++ b/src/widgets/styles/qstyleoption.cpp
@@ -1470,6 +1470,22 @@ QStyleOptionTab::QStyleOptionTab(int version)
     The default value is QSize(-1, -1), i.e. an invalid size;
 */
 
+/*!
+    Constructs a QStyleOptionTabV4 object, initializing the members
+    variables to their default values.
+ */
+
+QStyleOptionTabV4::QStyleOptionTabV4() : QStyleOptionTab(QStyleOptionTabV4::Version)
+{
+}
+
+/*!
+    \variable QStyleOptionTabV4::tabIndex
+    \brief the index for the tab being represented.
+
+    The default value is -1, i.e. a tab not on a tabbar;
+ */
+
 #endif // QT_CONFIG(tabbar)
 
 /*!
diff --git a/src/widgets/styles/qstyleoption.h b/src/widgets/styles/qstyleoption.h
index 7f5edf4279..a8ce3b465e 100644
--- a/src/widgets/styles/qstyleoption.h
+++ b/src/widgets/styles/qstyleoption.h
@@ -296,6 +296,14 @@ protected:
     QStyleOptionTab(int version);
 };
 
+class Q_WIDGETS_EXPORT QStyleOptionTabV4 : public QStyleOptionTab
+{
+public:
+    enum StyleOptionVersion { Version = 4 };
+    QStyleOptionTabV4();
+    int tabIndex = -1;
+};
+
 Q_DECLARE_OPERATORS_FOR_FLAGS(QStyleOptionTab::CornerWidgets)
 
 typedef Q_DECL_DEPRECATED QStyleOptionTab QStyleOptionTabV2;
diff --git a/src/widgets/styles/qstylesheetstyle.cpp b/src/widgets/styles/qstylesheetstyle.cpp
index 7e8c9a6050..2eccb24431 100644
--- a/src/widgets/styles/qstylesheetstyle.cpp
+++ b/src/widgets/styles/qstylesheetstyle.cpp
@@ -3027,6 +3027,7 @@ void QStyleSheetStyle::drawComplexControl(ComplexControl cc, const QStyleOptionC
                     r = positionRect(w, subRule, subRule2, PseudoElement_ComboBoxArrow, r, opt->direction);
                     subRule2.drawRule(p, r);
                 } else {
+                    rule.configurePalette(&cmbOpt.palette, QPalette::ButtonText, QPalette::Button);
                     cmbOpt.subControls = QStyle::SC_ComboBoxArrow;
                     QWindowsStyle::drawComplexControl(cc, &cmbOpt, p, w);
                 }
@@ -6009,6 +6010,16 @@ QRect QStyleSheetStyle::subElementRect(SubElement se, const QStyleOption *opt, c
     case SE_TabBarTabRightButton: {
         QRenderRule subRule = renderRule(w, opt, PseudoElement_TabBarTab);
         if (subRule.hasBox() || !subRule.hasNativeBorder()) {
+            if (se == SE_TabBarTabText) {
+                if (const QStyleOptionTabV4 *tab = qstyleoption_cast<const QStyleOptionTabV4 *>(opt)) {
+                    const QTabBar *bar = qobject_cast<const QTabBar *>(w);
+                    const QRect optRect = bar && tab->tabIndex != -1 ? bar->tabRect(tab->tabIndex) : opt->rect;
+                    const QRect r = positionRect(w, subRule, PseudoElement_TabBarTab, optRect, opt->direction);
+                    QStyleOptionTabV4 tabCopy(*tab);
+                    tabCopy.rect = subRule.contentsRect(r);
+                    return ParentStyle::subElementRect(se, &tabCopy, w);
+                }
+            }
             return ParentStyle::subElementRect(se, opt, w);
         }
         break;