1 #include "FTSize.h"
2 #ifdef FTGL_DEBUG
3 #include "mmgr.h"
4 #endif
5
6 #ifdef FTGL_USE_NAMESPACE
7 namespace ftgl
8 {
9 #endif
10
FTSize()11 FTSize::FTSize()
12 : ftFace(0),
13 size(0),
14 err(0)
15 {}
16
17
~FTSize()18 FTSize::~FTSize()
19 {}
20
21
CharSize(FT_Face * face,unsigned int point_size,unsigned int x_resolution,unsigned int y_resolution)22 bool FTSize::CharSize( FT_Face* face, unsigned int point_size, unsigned int x_resolution, unsigned int y_resolution )
23 {
24 ftFace = face;
25 size = point_size;
26 err = FT_Set_Char_Size( *ftFace, 0L, point_size * 64, x_resolution, y_resolution);
27
28 ftSize = (*ftFace)->size;
29
30 return !err;
31 }
32
33
Ascender() const34 int FTSize::Ascender() const
35 {
36 return ftSize->metrics.ascender >> 6;
37 }
38
39
Descender() const40 int FTSize::Descender() const
41 {
42 return ftSize->metrics.descender >> 6;
43 }
44
45
Height() const46 int FTSize::Height() const
47 {
48 if( FT_IS_SCALABLE((*ftFace)))
49 {
50 float height;
51 if( FT_IS_SFNT((*ftFace))) // Don't think this is correct
52 {
53 height = (float)((*ftFace)->bbox.yMax - (*ftFace)->bbox.yMin); // bbox.yMax-bbox.yMin
54 }
55 else
56 {
57 height = (float)(((*ftFace)->bbox.yMax - (*ftFace)->bbox.yMin) >> 16); // bbox.yMax-bbox.yMin
58 }
59
60 height = height * ( (float)ftSize->metrics.y_ppem / (float)(*ftFace)->units_per_EM);
61 return static_cast<int>(height);
62 }
63 else
64 {
65 return ftSize->metrics.height >> 6;
66 }
67 }
68
69
Width() const70 int FTSize::Width() const
71 {
72 if( FT_IS_SCALABLE((*ftFace)))
73 {
74 float width;
75 if( FT_IS_SFNT((*ftFace))) // Don't think this is correct
76 {
77 width = (float)((*ftFace)->bbox.xMax - (*ftFace)->bbox.xMin); // bbox.xMax-bbox.xMin
78 }
79 else
80 {
81 width = (float)(((*ftFace)->bbox.xMax - (*ftFace)->bbox.xMin) >> 16); // bbox.xMax-bbox.xMin
82 }
83
84 width = width * ( (float)ftSize->metrics.x_ppem / (float)(*ftFace)->units_per_EM);
85 return static_cast<int>(width);
86 }
87 else
88 {
89 return ftSize->metrics.max_advance >> 6;
90 }
91 }
92
93
Underline() const94 int FTSize::Underline() const
95 {
96 return 0;
97 }
98
99 #ifdef FTGL_USE_NAMESPACE
100 } // namespace ftgl
101 #endif
102