blob: 0f831cc971be407495a0c0c4af5c10b6a8f7216a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/*************************************************************************
** FontEngine.hpp **
** **
** This file is part of dvisvgm -- a fast DVI to SVG converter **
** Copyright (C) 2005-2018 Martin Gieseking <martin.gieseking@uos.de> **
** **
** This program is free software; you can redistribute it and/or **
** modify it under the terms of the GNU General Public License as **
** published by the Free Software Foundation; either version 3 of **
** the License, or (at your option) any later version. **
** **
** This program is distributed in the hope that it will be useful, but **
** WITHOUT ANY WARRANTY; without even the implied warranty of **
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
** GNU General Public License for more details. **
** **
** You should have received a copy of the GNU General Public License **
** along with this program; if not, see <http://www.gnu.org/licenses/>. **
*************************************************************************/
#ifndef FONTENGINE_HPP
#define FONTENGINE_HPP
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_CID_H
#include <map>
#include <memory>
#include <string>
#include <vector>
#include "Character.hpp"
#include "CharMapID.hpp"
#include "Glyph.hpp"
#include "RangeMap.hpp"
class Font;
/** This class provides methods to handle font files and font data.
* It's a wrapper for the Freetype font library. */
class FontEngine {
public:
~FontEngine ();
static FontEngine& instance ();
static std::string version ();
bool setFont (const Font &font);
bool isCIDFont() const;
bool traceOutline (const Character &c, Glyph &glyph, bool scale=true) const;
const char* getFamilyName () const;
const char* getStyleName () const;
int getUnitsPerEM () const;
int getAscender () const;
int getDescender () const;
int getAdvance (int c) const;
int getHAdvance () const;
int getHAdvance (const Character &c) const;
int getVAdvance (const Character &c) const;
int getFirstChar () const;
int getNextChar () const;
int getCharMapIDs (std::vector<CharMapID> &charmapIDs) const;
int getNumGlyphs () const;
CharMapID setUnicodeCharMap ();
CharMapID setCustomCharMap ();
std::vector<int> getPanose () const;
std::string getGlyphName (const Character &c) const;
int getCharByGlyphName (const char *name) const;
bool setCharMap (const CharMapID &charMapID);
void buildCharMap (RangeMap &charmap);
std::unique_ptr<const RangeMap> createCustomToUnicodeMap ();
protected:
FontEngine ();
bool setFont (const std::string &fname, int fontindex, const CharMapID &charmapID);
int charIndex (const Character &c) const;
private:
mutable unsigned int _currentChar, _currentGlyphIndex;
FT_Face _currentFace;
FT_Library _library;
const Font *_currentFont;
};
#endif
|
