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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
// -*- related-file-name: "../../libefont/t1csgen.cc" -*-
#ifndef EFONT_T1CSGEN_HH
#define EFONT_T1CSGEN_HH
#include <efont/t1interp.hh>
#include <lcdf/straccum.hh>
namespace Efont {
class Type1Font;
class Type1CharstringGen { public:
Type1CharstringGen(int precision = 5);
int precision() const { return _precision; }
void clear();
char *data() { return _ncs.data(); }
const char *data() const { return _ncs.data(); }
int length() const { return _ncs.length(); }
void gen_number(double, int kind = 0);
void gen_command(int);
void gen_stack(CharstringInterp &, int for_cmd);
void append_charstring(const String &);
const Point ¤t_point(bool real) const { return (real ? _true : _false); }
void gen_moveto(const Point &, bool closepath, bool always);
inline String take_string();
Type1Charstring *output();
void output(Type1Charstring &);
static String callsubr_string(int subr);
private:
StringAccum _ncs;
int _precision;
double _f_precision;
Point _true;
Point _false;
enum State { S_INITIAL, S_GEN };
State _state;
void gen_rational(int big_val, int divisor);
bool gen_stem3_stack(CharstringInterp &interp);
};
class Type1CharstringGenInterp : public CharstringInterp { public:
Type1CharstringGenInterp(int precision);
int precision() const { return _csgen.precision(); }
void set_direct_hint_replacement(bool dhr) { _direct_hr = dhr; }
void set_hint_replacement_storage(Type1Font *);
int nhints() const { return _stem_hstem.size(); }
double max_flex_height() const { return _max_flex_height; }
bool bad_flex() const { return _bad_flex; }
const Type1CharstringGen &csgen() const { return _csgen; }
void act_width(int, const Point &);
void act_seac(int, double, double, double, int, int);
void act_hstem(int, double, double);
void act_vstem(int, double, double);
void act_hintmask(int, const unsigned char *, int);
void act_line(int, const Point &, const Point &);
void act_curve(int, const Point &, const Point &, const Point &, const Point &);
void act_closepath(int);
void act_flex(int, const Point &, const Point &, const Point &, const Point &, const Point &, const Point &, const Point &, double);
void intermediate_output(Type1Charstring &out);
void run(const CharstringContext &g, Type1Charstring &out);
private:
// output
Type1CharstringGen _csgen;
mutable Type1CharstringGen _hint_csgen;
// current glyph
Point _width;
enum State { S_INITIAL, S_OPEN, S_CLOSED, S_SEAC };
State _state;
// hints and hint replacement
Vector<double> _stem_pos;
Vector<double> _stem_width;
Vector<int> _stem_hstem;
String _last_hints;
bool _in_hr;
bool _direct_hr;
int _hr_firstsubr;
Type1Font *_hr_storage;
// Flex
double _max_flex_height;
bool _bad_flex;
inline void gen_number(double, int = 0);
inline void gen_command(int);
void gen_sbw(bool hints_follow);
String gen_hints(const unsigned char *, int) const;
void swap_stem_hints();
};
inline String Type1CharstringGen::take_string()
{
String s = _ncs.take_string();
clear();
return s;
}
}
#endif
|
