The Tor Browser / file comparison
comparison: gfx/graphite2/src/inc/Font.h
gfx/graphite2/src/inc/Font.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
equal
deleted
inserted
replaced
| -1:000000000000 | 0:27809a925a90 |
|---|---|
| 1 /* GRAPHITE2 LICENSING | |
| 2 | |
| 3 Copyright 2010, SIL International | |
| 4 All rights reserved. | |
| 5 | |
| 6 This library is free software; you can redistribute it and/or modify | |
| 7 it under the terms of the GNU Lesser General Public License as published | |
| 8 by the Free Software Foundation; either version 2.1 of License, or | |
| 9 (at your option) any later version. | |
| 10 | |
| 11 This program is distributed in the hope that it will be useful, | |
| 12 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 Lesser General Public License for more details. | |
| 15 | |
| 16 You should also have received a copy of the GNU Lesser General Public | |
| 17 License along with this library in the file named "LICENSE". | |
| 18 If not, write to the Free Software Foundation, 51 Franklin Street, | |
| 19 Suite 500, Boston, MA 02110-1335, USA or visit their web page on the | |
| 20 internet at http://www.fsf.org/licenses/lgpl.html. | |
| 21 | |
| 22 Alternatively, the contents of this file may be used under the terms of the | |
| 23 Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public | |
| 24 License, as published by the Free Software Foundation, either version 2 | |
| 25 of the License or (at your option) any later version. | |
| 26 */ | |
| 27 #pragma once | |
| 28 #include <cassert> | |
| 29 #include "graphite2/Font.h" | |
| 30 #include "inc/Main.h" | |
| 31 #include "inc/Face.h" | |
| 32 | |
| 33 namespace graphite2 { | |
| 34 | |
| 35 #define INVALID_ADVANCE -1e38f // can't be a static const because non-integral | |
| 36 | |
| 37 class Font | |
| 38 { | |
| 39 public: | |
| 40 Font(float ppm, const Face & face, const void * appFontHandle=0, const gr_font_ops * ops=0); | |
| 41 virtual ~Font(); | |
| 42 | |
| 43 float advance(unsigned short glyphid) const; | |
| 44 float scale() const; | |
| 45 bool isHinted() const; | |
| 46 const Face & face() const; | |
| 47 | |
| 48 CLASS_NEW_DELETE; | |
| 49 private: | |
| 50 gr_font_ops m_ops; | |
| 51 const void * const m_appFontHandle; | |
| 52 float * m_advances; // One advance per glyph in pixels. Nan if not defined | |
| 53 const Face & m_face; | |
| 54 float m_scale; // scales from design units to ppm | |
| 55 bool m_hinted; | |
| 56 | |
| 57 Font(const Font&); | |
| 58 Font& operator=(const Font&); | |
| 59 }; | |
| 60 | |
| 61 inline | |
| 62 float Font::advance(unsigned short glyphid) const | |
| 63 { | |
| 64 if (m_advances[glyphid] == INVALID_ADVANCE) | |
| 65 m_advances[glyphid] = (*m_ops.glyph_advance_x)(m_appFontHandle, glyphid); | |
| 66 return m_advances[glyphid]; | |
| 67 } | |
| 68 | |
| 69 inline | |
| 70 float Font::scale() const | |
| 71 { | |
| 72 return m_scale; | |
| 73 } | |
| 74 | |
| 75 inline | |
| 76 bool Font::isHinted() const | |
| 77 { | |
| 78 return m_hinted; | |
| 79 } | |
| 80 | |
| 81 inline | |
| 82 const Face & Font::face() const | |
| 83 { | |
| 84 return m_face; | |
| 85 } | |
| 86 | |
| 87 } // namespace graphite2 | |
| 88 | |
| 89 struct gr_font : public graphite2::Font {}; |
