blob: 5fb8ffba157e524f5ed1e776a16464ba401c4184 (
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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
#include "FTSize.h"
FTSize::FTSize()
: ftFace(0),
ftSize(0),
size(0),
err(0)
{}
FTSize::~FTSize()
{}
bool FTSize::CharSize( FT_Face* face, unsigned int point_size, unsigned int x_resolution, unsigned int y_resolution )
{
err = FT_Set_Char_Size( *face, 0L, point_size * 64, x_resolution, y_resolution);
if( !err)
{
ftFace = face;
size = point_size;
ftSize = (*ftFace)->size;
}
else
{
ftFace = 0;
size = 0;
ftSize = 0;
}
return !err;
}
unsigned int FTSize::CharSize() const
{
return size;
}
float FTSize::Ascender() const
{
return ftSize == 0 ? 0.0f : static_cast<float>( ftSize->metrics.ascender) / 64.0f;
}
float FTSize::Descender() const
{
return ftSize == 0 ? 0.0f : static_cast<float>( ftSize->metrics.descender) / 64.0f;
}
float FTSize::Height() const
{
if( 0 == ftSize)
{
return 0.0f;
}
if( FT_IS_SCALABLE((*ftFace)))
{
return ( (*ftFace)->bbox.yMax - (*ftFace)->bbox.yMin) * ( (float)ftSize->metrics.y_ppem / (float)(*ftFace)->units_per_EM);
}
else
{
return static_cast<float>( ftSize->metrics.height) / 64.0f;
}
}
float FTSize::Width() const
{
if( 0 == ftSize)
{
return 0.0f;
}
if( FT_IS_SCALABLE((*ftFace)))
{
return ( (*ftFace)->bbox.xMax - (*ftFace)->bbox.xMin) * ( static_cast<float>(ftSize->metrics.x_ppem) / static_cast<float>((*ftFace)->units_per_EM));
}
else
{
return static_cast<float>( ftSize->metrics.max_advance) / 64.0f;
}
}
float FTSize::Underline() const
{
return 0.0f;
}
unsigned int FTSize::XPixelsPerEm() const
{
return ftSize == 0 ? 0 : ftSize->metrics.x_ppem;
}
unsigned int FTSize::YPixelsPerEm() const
{
return ftSize == 0 ? 0 : ftSize->metrics.y_ppem;
}
|