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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
* FTGL - OpenGL font library
*
* Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
* Copyright (c) 2008 Sam Hocevar <sam@zoy.org>
* Copyright (c) 2008 Sean Morrison <learner@brlcad.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef __ftgl__
# warning This header is deprecated. Please use <FTGL/ftgl.h> from now.
# include <FTGL/ftgl.h>
#endif
#ifndef __FTBBox__
#define __FTBBox__
#ifdef __cplusplus
/**
* FTBBox is a convenience class for handling bounding boxes.
*/
class FTGL_EXPORT FTBBox
{
public:
/**
* Default constructor. Bounding box is set to zero.
*/
FTBBox()
: lower(0.0f, 0.0f, 0.0f),
upper(0.0f, 0.0f, 0.0f)
{}
/**
* Constructor.
*/
FTBBox(float lx, float ly, float lz, float ux, float uy, float uz)
: lower(lx, ly, lz),
upper(ux, uy, uz)
{}
/**
* Constructor.
*/
FTBBox(FTPoint l, FTPoint u)
: lower(l),
upper(u)
{}
/**
* Constructor. Extracts a bounding box from a freetype glyph. Uses
* the control box for the glyph. <code>FT_Glyph_Get_CBox()</code>
*
* @param glyph A freetype glyph
*/
FTBBox(FT_GlyphSlot glyph)
: lower(0.0f, 0.0f, 0.0f),
upper(0.0f, 0.0f, 0.0f)
{
FT_BBox bbox;
FT_Outline_Get_CBox(&(glyph->outline), &bbox);
lower.X(static_cast<float>(bbox.xMin) / 64.0f);
lower.Y(static_cast<float>(bbox.yMin) / 64.0f);
lower.Z(0.0f);
upper.X(static_cast<float>(bbox.xMax) / 64.0f);
upper.Y(static_cast<float>(bbox.yMax) / 64.0f);
upper.Z(0.0f);
}
/**
* Destructor
*/
~FTBBox()
{}
/**
* Mark the bounds invalid by setting all lower dimensions greater
* than the upper dimensions.
*/
void Invalidate()
{
lower = FTPoint(1.0f, 1.0f, 1.0f);
upper = FTPoint(-1.0f, -1.0f, -1.0f);
}
/**
* Determines if this bounding box is valid.
*
* @return True if all lower values are <= the corresponding
* upper values.
*/
bool IsValid()
{
return lower.X() <= upper.X()
&& lower.Y() <= upper.Y()
&& lower.Z() <= upper.Z();
}
/**
* Move the Bounding Box by a vector.
*
* @param vector The vector to move the bbox in 3D space.
*/
FTBBox& operator += (const FTPoint vector)
{
lower += vector;
upper += vector;
return *this;
}
/**
* Combine two bounding boxes. The result is the smallest bounding
* box containing the two original boxes.
*
* @param bbox The bounding box to merge with the second one.
*/
FTBBox& operator |= (const FTBBox& bbox)
{
if(bbox.lower.X() < lower.X()) lower.X(bbox.lower.X());
if(bbox.lower.Y() < lower.Y()) lower.Y(bbox.lower.Y());
if(bbox.lower.Z() < lower.Z()) lower.Z(bbox.lower.Z());
if(bbox.upper.X() > upper.X()) upper.X(bbox.upper.X());
if(bbox.upper.Y() > upper.Y()) upper.Y(bbox.upper.Y());
if(bbox.upper.Z() > upper.Z()) upper.Z(bbox.upper.Z());
return *this;
}
void SetDepth(float depth)
{
if(depth > 0)
upper.Z(lower.Z() + depth);
else
lower.Z(upper.Z() + depth);
}
inline FTPoint const Upper() const
{
return upper;
}
inline FTPoint const Lower() const
{
return lower;
}
private:
/**
* The bounds of the box
*/
FTPoint lower, upper;
};
#endif //__cplusplus
#endif // __FTBBox__
|
