2 Copyright (C) 2014 Paul Davis, Robin Gareus
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 #ifndef __libgtkmm2ext_emscale_h__
20 #define __libgtkmm2ext_emscale_h__
25 #include <pangomm/fontdescription.h>
27 #include "gtkmm2ext/visibility.h"
32 class LIBGTKMM2EXT_API EmScale
35 EmScale (const Pango::FontDescription&);
37 unsigned int char_pixel_width() { if (_char_pixel_width < 1) recalc_char_pixel_geometry() ; return _char_pixel_width; }
38 unsigned int char_pixel_height() { if (_char_pixel_height < 1) recalc_char_pixel_geometry() ; return _char_pixel_height; }
39 float char_avg_pixel_width() { if (_char_pixel_width < 1) recalc_char_pixel_geometry() ; return _char_avg_pixel_width; }
41 static EmScale& by_font (const Pango::FontDescription&);
44 Pango::FontDescription _font;
45 unsigned int _char_pixel_width;
46 unsigned int _char_pixel_height;
47 float _char_avg_pixel_width;
49 void recalc_char_pixel_geometry ();
51 static std::map<std::string,EmScale> _emscales;
56 #endif /* __libgtkmm2ext_emscale_h__ */