Make foreground and backgroundColor proper functions.

Change-Id: I93d4355a6c0b6edb1902df6399df7884b25ea744
Reviewed-by: Jan-Arve Sæther <jan-arve.saether@nokia.com>

src/gui/accessible/qaccessible.cpp

@@ -1060,10 +1060,6 @@ QVector<QPair<QAccessibleInterface*, QAccessible::Relation> > QAccessibleInterfa
     \sa text(), role()
 */
 
-/*!
-    \fn QColor QAccessibleInterface::backgroundColor()
-    \internal
-*/
 
 /*!
     \fn QAccessibleEditableTextInterface *QAccessibleInterface::editableTextInterface()
@@ -1071,9 +1067,24 @@ QVector<QPair<QAccessibleInterface*, QAccessible::Relation> > QAccessibleInterfa
 */
 
 /*!
-    \fn QColor QAccessibleInterface::foregroundColor()
-    \internal
+    Returns the accessible's foreground color if applicable or an invalid QColor.
+
+    \sa backgroundColor()
 */
+QColor QAccessibleInterface::foregroundColor() const
+{
+    return QColor();
+}
+
+/*!
+    Returns the accessible's background color if applicable or an invalid QColor.
+
+    \sa foregroundColor()
+*/
+QColor QAccessibleInterface::backgroundColor() const
+{
+    return QColor();
+}
 
 /*!
     \fn QAccessibleTextInterface *QAccessibleInterface::textInterface()

src/gui/accessible/qaccessible.h

@@ -389,18 +389,15 @@ public:
     virtual Role role(int child = 0) const = 0;
     virtual State state(int child = 0) const = 0;
 
+    virtual QColor foregroundColor() const;
+    virtual QColor backgroundColor() const;
+
     virtual QVariant invokeMethod(Method method, int child = 0,
                           const QVariantList &params = QVariantList());
 
     inline QSet<Method> supportedMethods()
     { return qvariant_cast<QSet<Method> >(invokeMethod(ListSupportedMethods)); }
 
-    inline QColor foregroundColor()
-    { return qvariant_cast<QColor>(invokeMethod(ForegroundColor)); }
-
-    inline QColor backgroundColor()
-    { return qvariant_cast<QColor>(invokeMethod(BackgroundColor)); }
-
     inline QAccessibleTextInterface *textInterface()
     { return reinterpret_cast<QAccessibleTextInterface *>(cast_helper(QAccessible2::TextInterface)); }
 

src/widgets/accessible/qaccessiblewidget.cpp

@@ -866,6 +866,16 @@ QAccessible::State QAccessibleWidget::state(int child) const
     return state;
 }
 
+QColor QAccessibleWidget::foregroundColor() const
+{
+    return widget()->palette().color(widget()->foregroundRole());
+}
+
+QColor QAccessibleWidget::backgroundColor() const
+{
+    return widget()->palette().color(widget()->backgroundRole());
+}
+
 QVariant QAccessibleWidget::invokeMethod(Method method, int child, const QVariantList & /*params*/)
 {
     if (child)
@@ -877,10 +887,6 @@ QVariant QAccessibleWidget::invokeMethod(Method method, int child, const QVarian
         set << ListSupportedMethods << ForegroundColor << BackgroundColor;
         return QVariant::fromValue(set);
     }
-    case ForegroundColor:
-        return widget()->palette().color(widget()->foregroundRole());
-    case BackgroundColor:
-        return widget()->palette().color(widget()->backgroundRole());
     default:
         return QVariant();
     }

src/widgets/accessible/qaccessiblewidget.h

@@ -75,6 +75,9 @@ public:
     Role role(int child = 0) const;
     State state(int child = 0) const;
 
+    QColor foregroundColor() const;
+    QColor backgroundColor() const;
+
     QVariant invokeMethod(Method method, int child, const QVariantList &params);
 
 protected: