Import r67258 of the wxWidgets trunk, which I expect will before

long become wxWidgets 2.9.2, which in turn is expected to be the
last 2.9 release before the 3.0 stable release.

Since the full wxWidgets distribution is rather large, I have
imported only the parts that we use, on a subdirectory basis:

art
include/wx/*.*
include/wx/aui
include/wx/cocoa
include/wx/generic
include/wx/gtk
include/wx/meta
include/wx/msw
include/wx/osx
include/wx/persist
include/wx/private
include/wx/protocol
include/wx/unix
src/aui
src/common
src/generic
src/gtk
src/msw
src/osx
src/unix


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7380 8ced0084-cf51-0410-be5f-012b33b47a6e

Externals/wxWidgets3/include/wx/private/window.h

@@ -0,0 +1,39 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/private/window.h
+// Purpose:     misc wxWindow helpers
+// Author:      Vaclav Slavik
+// Created:     2010-01-21
+// RCS-ID:      $Id: window.h 63251 2010-01-24 11:51:09Z VS $
+// Copyright:   (c) 2010 Vaclav Slavik
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_PRIVATE_WINDOW_H_
+#define _WX_PRIVATE_WINDOW_H_
+
+#include "wx/gdicmn.h"
+
+namespace wxPrivate
+{
+
+// Windows' computes dialog units using average character width over upper-
+// and lower-case ASCII alphabet and not using the average character width
+// metadata stored in the font; see
+// http://support.microsoft.com/default.aspx/kb/145994 for detailed discussion.
+//
+// This helper function computes font dimensions in the same way. It works with
+// either wxDC or wxWindow argument.
+template<typename T>
+inline wxSize GetAverageASCIILetterSize(const T& of_what)
+{
+    const wxStringCharType *TEXT_TO_MEASURE =
+        wxS("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz");
+
+    wxSize s = of_what.GetTextExtent(TEXT_TO_MEASURE);
+    s.x = (s.x / 26 + 1) / 2;
+    return s;
+}
+
+} // namespace wxPrivate
+
+#endif // _WX_PRIVATE_WINDOW_H_