39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/private/window.h
|
|
// Purpose: misc wxWindow helpers
|
|
// Author: Vaclav Slavik
|
|
// Created: 2010-01-21
|
|
// 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_
|