FTGL  2.4.0
FTBBox.h
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1 /*
2  * FTGL - OpenGL font library
3  *
4  * Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
5  * Copyright (c) 2008 Sam Hocevar <sam@hocevar.net>
6  * Copyright (c) 2008 Sean Morrison <learner@brlcad.org>
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining
9  * a copy of this software and associated documentation files (the
10  * "Software"), to deal in the Software without restriction, including
11  * without limitation the rights to use, copy, modify, merge, publish,
12  * distribute, sublicense, and/or sell copies of the Software, and to
13  * permit persons to whom the Software is furnished to do so, subject to
14  * the following conditions:
15  *
16  * The above copyright notice and this permission notice shall be
17  * included in all copies or substantial portions of the Software.
18  *
19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
22  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
23  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26  */
27 
28 #ifndef __ftgl__
29 # warning This header is deprecated. Please use <FTGL/ftgl.h> from now.
30 # include <FTGL/ftgl.h>
31 #endif
32 
33 #ifndef __FTBBox__
34 #define __FTBBox__
35 
36 #ifdef __cplusplus
37 
38 
43 {
44  public:
49  : lower(0.0f, 0.0f, 0.0f),
50  upper(0.0f, 0.0f, 0.0f)
51  {}
52 
56  FTBBox(float lx, float ly, float lz, float ux, float uy, float uz)
57  : lower(lx, ly, lz),
58  upper(ux, uy, uz)
59  {}
60 
65  : lower(l),
66  upper(u)
67  {}
68 
75  FTBBox(FT_GlyphSlot glyph)
76  : lower(0.0f, 0.0f, 0.0f),
77  upper(0.0f, 0.0f, 0.0f)
78  {
79  FT_BBox bbox;
80  FT_Outline_Get_CBox(&(glyph->outline), &bbox);
81 
82  lower.X(static_cast<float>(bbox.xMin) / 64.0f);
83  lower.Y(static_cast<float>(bbox.yMin) / 64.0f);
84  lower.Z(0.0f);
85  upper.X(static_cast<float>(bbox.xMax) / 64.0f);
86  upper.Y(static_cast<float>(bbox.yMax) / 64.0f);
87  upper.Z(0.0f);
88  }
89 
94  {}
95 
100  void Invalidate()
101  {
102  lower = FTPoint(1.0f, 1.0f, 1.0f);
103  upper = FTPoint(-1.0f, -1.0f, -1.0f);
104  }
105 
112  bool IsValid()
113  {
114  return lower.X() <= upper.X()
115  && lower.Y() <= upper.Y()
116  && lower.Z() <= upper.Z();
117  }
118 
124  FTBBox& operator += (const FTPoint vector)
125  {
126  lower += vector;
127  upper += vector;
128 
129  return *this;
130  }
131 
138  FTBBox& operator |= (const FTBBox& bbox)
139  {
140  if(bbox.lower.X() < lower.X()) lower.X(bbox.lower.X());
141  if(bbox.lower.Y() < lower.Y()) lower.Y(bbox.lower.Y());
142  if(bbox.lower.Z() < lower.Z()) lower.Z(bbox.lower.Z());
143  if(bbox.upper.X() > upper.X()) upper.X(bbox.upper.X());
144  if(bbox.upper.Y() > upper.Y()) upper.Y(bbox.upper.Y());
145  if(bbox.upper.Z() > upper.Z()) upper.Z(bbox.upper.Z());
146 
147  return *this;
148  }
149 
150  void SetDepth(float depth)
151  {
152  if(depth > 0)
153  upper.Z(lower.Z() + depth);
154  else
155  lower.Z(upper.Z() + depth);
156  }
157 
158 
159  inline FTPoint const Upper() const
160  {
161  return upper;
162  }
163 
164 
165  inline FTPoint const Lower() const
166  {
167  return lower;
168  }
169 
170  private:
174  FTPoint lower, upper;
175 };
176 
177 #endif //__cplusplus
178 
179 #endif // __FTBBox__
180 
FTBBox(FT_GlyphSlot glyph)
Constructor.
Definition: FTBBox.h:75
FTBBox is a convenience class for handling bounding boxes.
Definition: FTBBox.h:42
~FTBBox()
Destructor.
Definition: FTBBox.h:93
#define FTGL_EXPORT
Definition: ftgl.h:134
FTBBox()
Default constructor.
Definition: FTBBox.h:48
void SetDepth(float depth)
Definition: FTBBox.h:150
FTBBox(float lx, float ly, float lz, float ux, float uy, float uz)
Constructor.
Definition: FTBBox.h:56
void X(FTGL_DOUBLE x)
Setters.
Definition: FTPoint.h:249
FTPoint class is a basic 3-dimensional point or vector.
Definition: FTPoint.h:42
FTBBox(FTPoint l, FTPoint u)
Constructor.
Definition: FTBBox.h:64
void Z(FTGL_DOUBLE z)
Definition: FTPoint.h:251
FTPoint const Lower() const
Definition: FTBBox.h:165
void Y(FTGL_DOUBLE y)
Definition: FTPoint.h:250
bool IsValid()
Determines if this bounding box is valid.
Definition: FTBBox.h:112
FTPoint const Upper() const
Definition: FTBBox.h:159
void Invalidate()
Mark the bounds invalid by setting all lower dimensions greater than the upper dimensions.
Definition: FTBBox.h:100