QS60Style: Do not let QCommonStyle draw PE_PanelScrollAreaCorner

If QS60Style lets QCommonStyle to draw PE_PanelScrollAreaCorner,
common style draws transparent small rect to the end of scrollbar.
This is due to our style's palette's Base is Qt::Transparent.

Error is only visible when two dialogs/windows are on top of each other
and their background is such that a hole in the upper dialog's
background will make the hole "visible"
(i.e. background is not similar).

As a fix, QS60Style should not let QCommonStyle draw the primitive,
but instead handle itself (and do nothing with it).

Task-number: QTBUG-6657
Reviewed-by: Alessandro Portale

1 files changed, 3 insertions, 1 deletions

diff --git a/src/gui/styles/qs60style.cpp b/src/gui/styles/qs60style.cpp
index 93b517f..98f4aaf 100644
--- a/src/gui/styles/qs60style.cpp
+++ b/src/gui/styles/qs60style.cpp
@@ -2238,11 +2238,13 @@ void QS60Style::drawPrimitive(PrimitiveElement element, const QStyleOption *opti
         }
         break;
 
+    case PE_PanelScrollAreaCorner:
+        break;
+
         // todo: items are below with #ifdefs "just in case". in final version, remove all non-required cases
     case PE_FrameLineEdit:
     case PE_IndicatorDockWidgetResizeHandle:
     case PE_PanelTipLabel:
-    case PE_PanelScrollAreaCorner:
 
 #ifndef QT_NO_TABBAR
     case PE_IndicatorTabTear: // No tab tear in S60