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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
|
//----------------------------------------------------------------------------
// Anti-Grain Geometry - Version 2.3
// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
//
// Permission to copy, use, modify, sell and distribute this software
// is granted provided this copyright notice appears in all copies.
// This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
//
//----------------------------------------------------------------------------
// Contact: mcseem@antigrain.com
// mcseemagg@yahoo.com
// http://www.antigrain.com
//----------------------------------------------------------------------------
#ifndef AGG_BASICS_INCLUDED
#define AGG_BASICS_INCLUDED
#ifndef AGG_INT8
#define AGG_INT8 signed char
#endif
#ifndef AGG_INT8U
#define AGG_INT8U unsigned char
#endif
#ifndef AGG_INT16
#define AGG_INT16 short
#endif
#ifndef AGG_INT16U
#define AGG_INT16U unsigned short
#endif
#ifndef AGG_INT32
#define AGG_INT32 int
#endif
#ifndef AGG_INT32U
#define AGG_INT32U unsigned
#endif
#ifndef AGG_INT64
#define AGG_INT64 signed long long
#endif
#ifndef AGG_INT64U
#define AGG_INT64U unsigned long long
#endif
#define AGG_INLINE inline
namespace agg
{
typedef AGG_INT8 int8;
typedef AGG_INT8U int8u;
typedef AGG_INT16 int16;
typedef AGG_INT16U int16u;
typedef AGG_INT32 int32;
typedef AGG_INT32U int32u;
typedef AGG_INT64 int64;
typedef AGG_INT64U int64u;
typedef unsigned char cover_type;
enum cover_scale_e {
cover_shift = 8,
cover_size = 1 << cover_shift,
cover_mask = cover_size - 1,
cover_none = 0,
cover_full = cover_mask
};
template<class T> struct rect_base : public CFX_Object {
typedef rect_base<T> self_type;
T x1;
T y1;
T x2;
T y2;
rect_base() {}
rect_base(T x1_, T y1_, T x2_, T y2_) :
x1(x1_), y1(y1_), x2(x2_), y2(y2_) {}
const self_type& normalize()
{
T t;
if(x1 > x2) {
t = x1;
x1 = x2;
x2 = t;
}
if(y1 > y2) {
t = y1;
y1 = y2;
y2 = t;
}
return *this;
}
bool clip(const self_type& r)
{
if(x2 > r.x2) {
x2 = r.x2;
}
if(y2 > r.y2) {
y2 = r.y2;
}
if(x1 < r.x1) {
x1 = r.x1;
}
if(y1 < r.y1) {
y1 = r.y1;
}
return x1 <= x2 && y1 <= y2;
}
bool is_valid() const
{
return x1 <= x2 && y1 <= y2;
}
};
template<class Rect>
inline Rect intersect_rectangles(const Rect& r1, const Rect& r2)
{
Rect r = r1;
if(r.x2 > r2.x2) {
r.x2 = r2.x2;
}
if(r.y2 > r2.y2) {
r.y2 = r2.y2;
}
if(r.x1 < r2.x1) {
r.x1 = r2.x1;
}
if(r.y1 < r2.y1) {
r.y1 = r2.y1;
}
return r;
}
template<class Rect>
inline Rect unite_rectangles(const Rect& r1, const Rect& r2)
{
Rect r = r1;
if(r.x2 < r2.x2) {
r.x2 = r2.x2;
}
if(r.y2 < r2.y2) {
r.y2 = r2.y2;
}
if(r.x1 > r2.x1) {
r.x1 = r2.x1;
}
if(r.y1 > r2.y1) {
r.y1 = r2.y1;
}
return r;
}
typedef rect_base<int> rect;
typedef rect_base<FX_FLOAT> rect_d;
enum path_commands_e {
path_cmd_stop = 0,
path_cmd_move_to = 1,
path_cmd_line_to = 2,
path_cmd_curve3 = 3,
path_cmd_curve4 = 4,
path_cmd_curveN = 5,
path_cmd_catrom = 6,
path_cmd_ubspline = 7,
path_cmd_end_poly = 0x0F,
path_cmd_mask = 0x0F
};
enum path_flags_e {
path_flags_none = 0,
path_flags_ccw = 0x10,
path_flags_cw = 0x20,
path_flags_close = 0x40,
path_flags_jr = 0x80,
path_flags_mask = 0xF0
};
inline bool is_vertex(unsigned c)
{
c &= ~path_flags_jr;
return c >= path_cmd_move_to && c < path_cmd_end_poly;
}
inline bool is_drawing(unsigned c)
{
c &= ~path_flags_jr;
return c >= path_cmd_line_to && c < path_cmd_end_poly;
}
inline bool is_stop(unsigned c)
{
c &= ~path_flags_jr;
return c == path_cmd_stop;
}
inline bool is_move_to(unsigned c)
{
c &= ~path_flags_jr;
return c == path_cmd_move_to;
}
inline bool is_line_to(unsigned c)
{
c &= ~path_flags_jr;
return c == path_cmd_line_to;
}
inline bool is_curve(unsigned c)
{
c &= ~path_flags_jr;
return c == path_cmd_curve3 || c == path_cmd_curve4;
}
inline bool is_curve3(unsigned c)
{
c &= ~path_flags_jr;
return c == path_cmd_curve3;
}
inline bool is_curve4(unsigned c)
{
c &= ~path_flags_jr;
return c == path_cmd_curve4;
}
inline bool is_end_poly(unsigned c)
{
c &= ~path_flags_jr;
return (c & path_cmd_mask) == path_cmd_end_poly;
}
inline bool is_close(unsigned c)
{
c &= ~path_flags_jr;
return (c & ~(path_flags_cw | path_flags_ccw)) ==
(path_cmd_end_poly | path_flags_close);
}
inline bool is_next_poly(unsigned c)
{
c &= ~path_flags_jr;
return is_stop(c) || is_move_to(c) || is_end_poly(c);
}
inline bool is_cw(unsigned c)
{
c &= ~path_flags_jr;
return (c & path_flags_cw) != 0;
}
inline bool is_ccw(unsigned c)
{
c &= ~path_flags_jr;
return (c & path_flags_ccw) != 0;
}
inline bool is_oriented(unsigned c)
{
c &= ~path_flags_jr;
return (c & (path_flags_cw | path_flags_ccw)) != 0;
}
inline bool is_closed(unsigned c)
{
c &= ~path_flags_jr;
return (c & path_flags_close) != 0;
}
inline unsigned get_close_flag(unsigned c)
{
c &= ~path_flags_jr;
return c & path_flags_close;
}
inline unsigned clear_orientation(unsigned c)
{
c &= ~path_flags_jr;
return c & ~(path_flags_cw | path_flags_ccw);
}
inline unsigned get_orientation(unsigned c)
{
c &= ~path_flags_jr;
return c & (path_flags_cw | path_flags_ccw);
}
inline unsigned set_orientation(unsigned c, unsigned o)
{
c &= ~path_flags_jr;
return clear_orientation(c) | o;
}
struct point_type : public CFX_Object {
FX_FLOAT x, y;
unsigned flag;
point_type() {}
point_type(FX_FLOAT x_, FX_FLOAT y_, unsigned flag_ = 0) : x(x_), y(y_), flag(flag_) {}
};
struct point_type_flag : public point_type {
unsigned flag;
point_type_flag()
{
flag = 0;
}
point_type_flag(FX_FLOAT x_, FX_FLOAT y_, unsigned flag_ = 0) : point_type(x_, y_), flag(flag_) {}
};
struct vertex_type : public CFX_Object {
FX_FLOAT x, y;
unsigned cmd;
vertex_type() {}
vertex_type(FX_FLOAT x_, FX_FLOAT y_, unsigned cmd_) :
x(x_), y(y_), cmd(cmd_) {}
};
}
#endif
|
