Line data    Source code

       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             : #include "inc/Face.h"
      28             : #include "inc/Font.h"
      29             : #include "inc/GlyphCache.h"
      30             : 
      31             : using namespace graphite2;
      32             : 
      33           0 : Font::Font(float ppm, const Face & f, const void * appFontHandle, const gr_font_ops * ops)
      34           0 : : m_appFontHandle(appFontHandle ? appFontHandle : this),
      35             :   m_face(f),
      36           0 :   m_scale(ppm / f.glyphs().unitsPerEm()),
      37           0 :   m_hinted(appFontHandle && ops && (ops->glyph_advance_x || ops->glyph_advance_y))
      38             : {
      39           0 :     memset(&m_ops, 0, sizeof m_ops);
      40           0 :     if (m_hinted && ops)
      41           0 :         memcpy(&m_ops, ops, min(sizeof m_ops, ops->size));
      42             :     else
      43           0 :         m_ops.glyph_advance_x = &Face::default_glyph_advance;
      44             : 
      45           0 :     size_t nGlyphs = f.glyphs().numGlyphs();
      46           0 :     m_advances = gralloc<float>(nGlyphs);
      47           0 :     if (m_advances)
      48             :     {
      49           0 :         for (float *advp = m_advances; nGlyphs; --nGlyphs, ++advp)
      50           0 :             *advp = INVALID_ADVANCE;
      51             :     }
      52           0 : }
      53             : 
      54             : 
      55           0 : /*virtual*/ Font::~Font()
      56             : {
      57           0 :     free(m_advances);
      58           0 : }
      59             : 
      60             : 
      61             :