projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| 5c3c1372 VS |
1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: wx/private/window.h | |
| 3 | // Purpose: misc wxWindow helpers | |
| 4 | // Author: Vaclav Slavik | |
| 5 | // Created: 2010-01-21 | |
| 6 | // RCS-ID: $Id$ | |
| 7 | // Copyright: (c) 2010 Vaclav Slavik | |
| 8 | // Licence: wxWindows licence | |
| 9 | ///////////////////////////////////////////////////////////////////////////// | |
| 10 | ||
| 11 | #ifndef _WX_PRIVATE_WINDOW_H_ | |
| 12 | #define _WX_PRIVATE_WINDOW_H_ | |
| 13 | ||
| 14 | #include "wx/gdicmn.h" | |
| 15 | ||
| 16 | namespace wxPrivate | |
| 17 | { | |
| 18 | ||
| 19 | // Windows' computes dialog units using average character width over upper- | |
| 20 | // and lower-case ASCII alphabet and not using the average character width | |
| 21 | // metadata stored in the font; see | |
| 22 | // http://support.microsoft.com/default.aspx/kb/145994 for detailed discussion. | |
| 23 | // | |
| 24 | // This helper function computes font dimensions in the same way. It works with | |
| 25 | // either wxDC or wxWindow argument. | |
| 26 | template<typename T> | |
| 27 | inline wxSize GetAverageASCIILetterSize(const T& of_what) | |
| 28 | { | |
| 29 | const wxStringCharType *TEXT_TO_MEASURE = | |
| 30 | wxS("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"); | |
| 31 | ||
| 32 | wxSize s = of_what.GetTextExtent(TEXT_TO_MEASURE); | |
| 33 | s.x = (s.x / 26 + 1) / 2; | |
| 34 | return s; | |
| 35 | } | |
| 36 | ||
| 37 | } // namespace wxPrivate | |
| 38 | ||
| 39 | #endif // _WX_PRIVATE_WINDOW_H_ |