1 files changed, 6 insertions, 19 deletions
diff --git a/src/gui/kernel/qwidget_mac.mm b/src/gui/kernel/qwidget_mac.mm
index 1717fbd67..3bbf5d4df 100644
--- a/src/gui/kernel/qwidget_mac.mm
+++ b/src/gui/kernel/qwidget_mac.mm
@@ -1116,23 +1116,9 @@ OSStatus QWidgetPrivate::qt_widget_event(EventHandlerCallRef er, EventRef event,
                 //update handles
                 GrafPtr qd = 0;
                 CGContextRef cg = 0;
-#ifndef QT_MAC_NO_QUICKDRAW
-                {
-                    if(GetEventParameter(event, kEventParamGrafPort, typeGrafPtr, 0, sizeof(qd), 0, &qd) != noErr) {
-                        GDHandle dev = 0;
-                        GetGWorld(&qd, &dev); //just use the global port..
-                    }
-                }
-                bool end_cg_context = false;
-                if(GetEventParameter(event, kEventParamCGContextRef, typeCGContextRef, 0, sizeof(cg), 0, &cg) != noErr && qd) {
-                    end_cg_context = true;
-                    QDBeginCGContext(qd, &cg);
-                }
-#else
                 if(GetEventParameter(event, kEventParamCGContextRef, typeCGContextRef, 0, sizeof(cg), 0, &cg) != noErr) {
                     Q_ASSERT(false);
                 }
-#endif
                 widget->d_func()->hd = cg;
                 widget->d_func()->qd_hd = qd;
                 CGContextSaveGState(cg);
@@ -1252,10 +1238,6 @@ OSStatus QWidgetPrivate::qt_widget_event(EventHandlerCallRef er, EventRef event,
                 widget->d_func()->hd = 0;
                 widget->d_func()->qd_hd = 0;
                 CGContextRestoreGState(cg);
-#ifndef QT_MAC_NO_QUICKDRAW
-                if(end_cg_context)
-                    QDEndCGContext(qd, &cg);
-#endif
             } else if(!HIObjectIsOfClass((HIObjectRef)hiview, kObjectQWidget)) {
                 CallNextEventHandler(er, event);
             }
@@ -3118,7 +3100,12 @@ void QWidgetPrivate::update_sys(const QRegion &rgn)
         return;
     dirtyOnWidget += rgn;
 #ifndef QT_MAC_USE_COCOA
-    HIViewSetNeedsDisplayInRegion(qt_mac_nativeview_for(q), QMacSmartQuickDrawRegion(rgn.toQDRgn()), true);
+    RgnHandle rgnHandle = rgn.toQDRgnForUpdate_sys();
+    if (rgnHandle) 
+        HIViewSetNeedsDisplayInRegion(qt_mac_nativeview_for(q), QMacSmartQuickDrawRegion(rgnHandle), true);
+    else {
+        HIViewSetNeedsDisplay(qt_mac_nativeview_for(q), true); // do a complete repaint on overflow.
+    }
 #else
     // Cocoa doesn't do regions, it seems more efficient to just update the bounding rect instead of a potential number of message passes for each rect.
     const QRect &boundingRect = rgn.boundingRect();