i29105 when a page background garphic is set in sw, use GlobalRetoucheColor as…

i29105 when a page background garphic is set in sw, use GlobalRetoucheColor as fallback for draw object text edit

sw/source/core/layout/paintfrm.cxx

@@ -6383,9 +6383,26 @@ const Color& SwPageFrm::GetDrawBackgrdColor() const
     const SvxBrushItem* pBrushItem;
     const Color* pDummyColor;
     SwRect aDummyRect;
+
     if ( GetBackgroundBrush( pBrushItem, pDummyColor, aDummyRect, true) )
-        return pBrushItem->GetColor();
+    {
+        const Graphic* pGraphic = pBrushItem->GetGraphic();
+
+        if(pGraphic)
+        {
+            // #29105# when a graphic is set, it may be possible to calculate a single
+            // color which looks good in all places of the graphic. Since it is
+            // planned to have text edit on the overlay one day and the fallback
+            // to aGlobalRetoucheColor returns something useful, just use that
+            // for now.
+        }
         else
+        {
+            // not a graphic, use (hopefully) initialized color
+            return pBrushItem->GetColor();
+        }
+    }
+
     return aGlobalRetoucheColor;
 }