trying optimal scrolling solution perf-wise

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45757 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/generic/scrlwing.cpp b/src/generic/scrlwing.cpp
index 7db540e792cf07270618cb7a62d159422a1e7c30..35d85bbefa90cd96ca015d74f97fd6536bc2c680 100644 (file)
--- a/src/generic/scrlwing.cpp
+++ b/src/generic/scrlwing.cpp
@@ -500,11 +500,6 @@ void wxScrollHelper::HandleOnScroll(wxScrollWinEvent& event)
     }
 
     bool needsRefresh = false;
     }
 
     bool needsRefresh = false;

-#ifdef __WXMAC__
-    // OS X blocks on immediate redraws, so make this a refresh
-    if (!wxScrolledWindowHasChildren(m_targetWindow))
-      needsRefresh = true;
-#endif

     int dx = 0,
         dy = 0;
     int orient = event.GetOrientation();
     int dx = 0,
         dy = 0;
     int orient = event.GetOrientation();


@@ -536,7 +531,12 @@ void wxScrollHelper::HandleOnScroll(wxScrollWinEvent& event)
         // flush all pending repaints before we change m_{x,y}ScrollPosition, as
         // otherwise invalidated area could be updated incorrectly later when
         // ScrollWindow() makes sure they're repainted before scrolling them
         // flush all pending repaints before we change m_{x,y}ScrollPosition, as
         // otherwise invalidated area could be updated incorrectly later when
         // ScrollWindow() makes sure they're repainted before scrolling them

+#ifdef __WXMAC__
+        // wxWindowMac is taking care of making sure the update area is correctly
+        // set up, while not forcing an immediate redraw
+#else

         m_targetWindow->Update();
         m_targetWindow->Update();

+#endif

     }
 
     if (orient == wxHORIZONTAL)
     }
 
     if (orient == wxHORIZONTAL)