wxHtmlWindow background drawing fixes for OS X and optimizations

[wxWidgets.git] / include / wx / html / htmlwin.h

diff --git a/include/wx/html/htmlwin.h b/include/wx/html/htmlwin.h
index 45d55c55bbfc2df1668327f22f3bc9af28e94387..c5ab33c1545b21c9be09a8a1c52dde759effc268 100644 (file)
--- a/include/wx/html/htmlwin.h
+++ b/include/wx/html/htmlwin.h
@@ -400,7 +400,6 @@ protected:
     // actual size of window. This method also setup scrollbars
     void CreateLayout();
 
-    void OnEraseBackground(wxEraseEvent& event);
     void OnPaint(wxPaintEvent& event);
     void OnSize(wxSizeEvent& event);
     void OnMouseMove(wxMouseEvent& event);
@@ -510,8 +509,13 @@ protected:
 #endif // wxUSE_CLIPBOARD
 
 private:
-    // window content for double buffered rendering:
-    wxBitmap *m_backBuffer;
+    // erase the window background using m_bmpBg or just solid colour if we
+    // don't have any background image
+    void DoEraseBackground(wxDC& dc);
+
+    // window content for double buffered rendering, may be invalid until it is
+    // really initialized in OnPaint()
+    wxBitmap m_backBuffer;
 
     // background image, may be invalid
     wxBitmap m_bmpBg;
@@ -539,10 +543,6 @@ private:
     // if this FLAG is false, items are not added to history
     bool m_HistoryOn;
 
-    // a flag set if we need to erase background in OnPaint() (otherwise this
-    // is supposed to have been done in OnEraseBackground())
-    bool m_eraseBgInOnPaint;
-
     // standard mouse cursors
     static wxCursor *ms_cursorLink;
     static wxCursor *ms_cursorText;