w32tex
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gr_font.cpp
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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 "graphite2/Font.h"
28 #include "inc/Font.h"
29 
30 
31 using namespace graphite2;
32 
33 extern "C" {
34 
35 void gr_engine_version(int *nMajor, int *nMinor, int *nBugFix)
36 {
37  if (nMajor) *nMajor = GR2_VERSION_MAJOR;
38  if (nMinor) *nMinor = GR2_VERSION_MINOR;
39  if (nBugFix) *nBugFix = GR2_VERSION_BUGFIX;
40 }
41 
42 gr_font* gr_make_font(float ppm/*pixels per em*/, const gr_face *face)
43 {
44  return gr_make_font_with_advance_fn(ppm, 0, 0, face);
45 }
46 
47 
48 gr_font* gr_make_font_with_ops(float ppm/*pixels per em*/, const void* appFontHandle/*non-NULL*/, const gr_font_ops * font_ops, const gr_face * face/*needed for scaling*/)
49 { //the appFontHandle must stay alive all the time when the gr_font is alive. When finished with the gr_font, call destroy_gr_font
50  if (face == 0 || ppm <= 0) return 0;
51 
52  Font * const res = new Font(ppm, *face, appFontHandle, font_ops);
53  if (*res)
54  return static_cast<gr_font*>(res);
55  else
56  {
57  delete res;
58  return 0;
59  }
60 }
61 
62 gr_font* gr_make_font_with_advance_fn(float ppm/*pixels per em*/, const void* appFontHandle/*non-NULL*/, gr_advance_fn getAdvance, const gr_face * face/*needed for scaling*/)
63 {
64  const gr_font_ops ops = {sizeof(gr_font_ops), getAdvance, NULL};
65  return gr_make_font_with_ops(ppm, appFontHandle, &ops, face);
66 }
67 
69 {
70  delete static_cast<Font*>(font);
71 }
72 
73 
74 } // extern "C"
#define font
Definition: aptex-macros.h:175
#define Font
#define NULL
Definition: ftobjs.h:61
FT_Face face
Definition: cffdrivr.c:659
Definition: bits.h:30
#define res(length)
Definition: picttoppm.c:287
struct gr_font_ops gr_font_ops
Definition: Font.h:292
#define GR2_VERSION_BUGFIX
Definition: Font.h:33
#define GR2_VERSION_MINOR
Definition: Font.h:32
#define GR2_VERSION_MAJOR
Definition: Font.h:31
float(* gr_advance_fn)(const void *appFontHandle, gr_uint16 glyphid)
Definition: Font.h:273
gr_font * gr_make_font_with_ops(float ppm, const void *appFontHandle, const gr_font_ops *font_ops, const gr_face *face)
Definition: gr_font.cpp:48
void gr_font_destroy(gr_font *font)
Definition: gr_font.cpp:68
gr_font * gr_make_font_with_advance_fn(float ppm, const void *appFontHandle, gr_advance_fn getAdvance, const gr_face *face)
Definition: gr_font.cpp:62
void gr_engine_version(int *nMajor, int *nMinor, int *nBugFix)
Definition: gr_font.cpp:35
gr_font * gr_make_font(float ppm, const gr_face *face)
Definition: gr_font.cpp:42
Definition: pbmfont.h:11
Definition: Face.h:225
Definition: Font.h:90
Definition: sh2.c:920