Applied patch #15540: wxRichTextTable: crashes due to an invalid focus object (dghart)

[wxWidgets.git] / src / msw / statbox.cpp

diff --git a/src/msw/statbox.cpp b/src/msw/statbox.cpp
index 3a2d88de4c1f630dad43b6e5d5c8aeba46537713..678a2594cff0245ac8310816db7a81ab8f8dc4f8 100644 (file)
--- a/src/msw/statbox.cpp
+++ b/src/msw/statbox.cpp
@@ -4,7 +4,6 @@
 // Author:      Julian Smart
 // Modified by:
 // Created:     04/01/98
-// RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
@@ -82,7 +81,13 @@ bool wxStaticBox::Create(wxWindow *parent,
 
 #ifndef __WXWINCE__
     if (!wxSystemOptions::IsFalse(wxT("msw.staticbox.optimized-paint")))
+    {
         Connect(wxEVT_PAINT, wxPaintEventHandler(wxStaticBox::OnPaint));
+
+        // Our OnPaint() completely erases our background, so don't do it in
+        // WM_ERASEBKGND too to avoid flicker.
+        SetBackgroundStyle(wxBG_STYLE_PAINT);
+    }
 #endif // !__WXWINCE__
 
     return true;
@@ -279,8 +284,14 @@ WXHRGN wxStaticBox::MSWGetRegionWithoutChildren()
     HRGN hrgn = ::CreateRectRgn(rc.left, rc.top, rc.right + 1, rc.bottom + 1);
     bool foundThis = false;
 
-    // iterate over all child windows (not just wxWindows but all windows)
-    for ( HWND child = ::GetWindow(GetHwndOf(GetParent()), GW_CHILD);
+    // Iterate over all sibling windows as in the old wxWidgets API the
+    // controls appearing inside the static box were created as its siblings
+    // and not children. This is now deprecated but should still work.
+    //
+    // Also notice that we must iterate over all windows, not just all
+    // wxWindows, as there may be composite windows etc.
+    HWND child;
+    for ( child = ::GetWindow(GetHwndOf(GetParent()), GW_CHILD);
           child;
           child = ::GetWindow(child, GW_HWNDNEXT) )
     {
@@ -332,6 +343,23 @@ WXHRGN wxStaticBox::MSWGetRegionWithoutChildren()
         }
     }
 
+    // Also iterate over all children of the static box, we need to clip them
+    // out as well.
+    for ( child = ::GetWindow(GetHwnd(), GW_CHILD);
+          child;
+          child = ::GetWindow(child, GW_HWNDNEXT) )
+    {
+        if ( !::IsWindowVisible(child) )
+        {
+            // if the window isn't visible then it doesn't need clipped
+            continue;
+        }
+
+        ::GetWindowRect(child, &rc);
+        AutoHRGN hrgnChild(::CreateRectRgnIndirect(&rc));
+        ::CombineRgn(hrgn, hrgn, hrgnChild, RGN_DIFF);
+    }
+
     return (WXHRGN)hrgn;
 }