Add wx headers and ext

wxheaders/wx/msw/custombgwin.h

@@ -0,0 +1,57 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/msw/custombgwin.h
+// Purpose:     wxMSW implementation of wxCustomBackgroundWindow
+// Author:      Vadim Zeitlin
+// Created:     2011-10-10
+// Copyright:   (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_MSW_CUSTOMBGWIN_H_
+#define _WX_MSW_CUSTOMBGWIN_H_
+
+#include "wx/bitmap.h"
+#include "wx/brush.h"
+
+// ----------------------------------------------------------------------------
+// wxCustomBackgroundWindow
+// ----------------------------------------------------------------------------
+
+template <class W>
+class wxCustomBackgroundWindow : public W,
+                                 public wxCustomBackgroundWindowBase
+{
+public:
+    typedef W BaseWindowClass;
+
+    wxCustomBackgroundWindow() { m_backgroundBrush = NULL; }
+
+    virtual ~wxCustomBackgroundWindow() { delete m_backgroundBrush; }
+
+protected:
+    virtual void DoSetBackgroundBitmap(const wxBitmap& bmp) wxOVERRIDE
+    {
+        delete m_backgroundBrush;
+        m_backgroundBrush = bmp.IsOk() ? new wxBrush(bmp) : NULL;
+
+        // Our transparent children should use our background if we have it,
+        // otherwise try to restore m_inheritBgCol to some reasonable value: true
+        // if we also have non-default background colour or false otherwise.
+        BaseWindowClass::m_inheritBgCol = bmp.IsOk()
+                                            || BaseWindowClass::UseBgCol();
+    }
+
+    virtual WXHBRUSH MSWGetCustomBgBrush() wxOVERRIDE
+    {
+        if ( m_backgroundBrush )
+            return (WXHBRUSH)m_backgroundBrush->GetResourceHandle();
+
+        return BaseWindowClass::MSWGetCustomBgBrush();
+    }
+
+    wxBrush *m_backgroundBrush;
+
+    wxDECLARE_NO_COPY_TEMPLATE_CLASS(wxCustomBackgroundWindow, W);
+};
+
+#endif // _WX_MSW_CUSTOMBGWIN_H_