1#include "mupdf/fitz.h"
2#include "svg-imp.h"
3
4#include <string.h>
5
6/* Color keywords (white, blue, fuchsia)
7 * System color keywords (ActiveBorder, ButtonFace -- need to find reasonable defaults)
8 * #fb0 (expand to #ffbb00)
9 * #ffbb00
10 * rgb(255,255,255)
11 * rgb(100%,100%,100%)
12 *
13 * "red icc-color(profileName,255,0,0)" (not going to support for now)
14 */
15
16struct
17{
18 const char *name;
19 float red, green, blue;
20}
21svg_predefined_colors[] =
22{
23 { "aliceblue", 240, 248, 255 },
24 { "antiquewhite", 250, 235, 215 },
25 { "aqua", 0, 255, 255 },
26 { "aquamarine", 127, 255, 212 },
27 { "azure", 240, 255, 255 },
28 { "beige", 245, 245, 220 },
29 { "bisque", 255, 228, 196 },
30 { "black", 0, 0, 0 },
31 { "blanchedalmond", 255, 235, 205 },
32 { "blue", 0, 0, 255 },
33 { "blueviolet", 138, 43, 226 },
34 { "brown", 165, 42, 42 },
35 { "burlywood", 222, 184, 135 },
36 { "cadetblue", 95, 158, 160 },
37 { "chartreuse", 127, 255, 0 },
38 { "chocolate", 210, 105, 30 },
39 { "coral", 255, 127, 80 },
40 { "cornflowerblue", 100, 149, 237 },
41 { "cornsilk", 255, 248, 220 },
42 { "crimson", 220, 20, 60 },
43 { "cyan", 0, 255, 255 },
44 { "darkblue", 0, 0, 139 },
45 { "darkcyan", 0, 139, 139 },
46 { "darkgoldenrod", 184, 134, 11 },
47 { "darkgray", 169, 169, 169 },
48 { "darkgreen", 0, 100, 0 },
49 { "darkgrey", 169, 169, 169 },
50 { "darkkhaki", 189, 183, 107 },
51 { "darkmagenta", 139, 0, 139 },
52 { "darkolivegreen", 85, 107, 47 },
53 { "darkorange", 255, 140, 0 },
54 { "darkorchid", 153, 50, 204 },
55 { "darkred", 139, 0, 0 },
56 { "darksalmon", 233, 150, 122 },
57 { "darkseagreen", 143, 188, 143 },
58 { "darkslateblue", 72, 61, 139 },
59 { "darkslategray", 47, 79, 79 },
60 { "darkslategrey", 47, 79, 79 },
61 { "darkturquoise", 0, 206, 209 },
62 { "darkviolet", 148, 0, 211 },
63 { "deeppink", 255, 20, 147 },
64 { "deepskyblue", 0, 191, 255 },
65 { "dimgray", 105, 105, 105 },
66 { "dimgrey", 105, 105, 105 },
67 { "dodgerblue", 30, 144, 255 },
68 { "firebrick", 178, 34, 34 },
69 { "floralwhite", 255, 250, 240 },
70 { "forestgreen", 34, 139, 34 },
71 { "fuchsia", 255, 0, 255 },
72 { "gainsboro", 220, 220, 220 },
73 { "ghostwhite", 248, 248, 255 },
74 { "gold", 255, 215, 0 },
75 { "goldenrod", 218, 165, 32 },
76 { "gray", 128, 128, 128 },
77 { "green", 0, 128, 0 },
78 { "greenyellow", 173, 255, 47 },
79 { "grey", 128, 128, 128 },
80 { "honeydew", 240, 255, 240 },
81 { "hotpink", 255, 105, 180 },
82 { "indianred", 205, 92, 92 },
83 { "indigo", 75, 0, 130 },
84 { "ivory", 255, 255, 240 },
85 { "khaki", 240, 230, 140 },
86 { "lavender", 230, 230, 250 },
87 { "lavenderblush", 255, 240, 245 },
88 { "lawngreen", 124, 252, 0 },
89 { "lemonchiffon", 255, 250, 205 },
90 { "lightblue", 173, 216, 230 },
91 { "lightcoral", 240, 128, 128 },
92 { "lightcyan", 224, 255, 255 },
93 { "lightgoldenrodyellow", 250, 250, 210 },
94 { "lightgray", 211, 211, 211 },
95 { "lightgreen", 144, 238, 144 },
96 { "lightgrey", 211, 211, 211 },
97 { "lightpink", 255, 182, 193 },
98 { "lightsalmon", 255, 160, 122 },
99 { "lightseagreen", 32, 178, 170 },
100 { "lightskyblue", 135, 206, 250 },
101 { "lightslategray", 119, 136, 153 },
102 { "lightslategrey", 119, 136, 153 },
103 { "lightsteelblue", 176, 196, 222 },
104 { "lightyellow", 255, 255, 224 },
105 { "lime", 0, 255, 0 },
106 { "limegreen", 50, 205, 50 },
107 { "linen", 250, 240, 230 },
108 { "magenta", 255, 0, 255 },
109 { "maroon", 128, 0, 0 },
110 { "mediumaquamarine", 102, 205, 170 },
111 { "mediumblue", 0, 0, 205 },
112 { "mediumorchid", 186, 85, 211 },
113 { "mediumpurple", 147, 112, 219 },
114 { "mediumseagreen", 60, 179, 113 },
115 { "mediumslateblue", 123, 104, 238 },
116 { "mediumspringgreen", 0, 250, 154 },
117 { "mediumturquoise", 72, 209, 204 },
118 { "mediumvioletred", 199, 21, 133 },
119 { "midnightblue", 25, 25, 112 },
120 { "mintcream", 245, 255, 250 },
121 { "mistyrose", 255, 228, 225 },
122 { "moccasin", 255, 228, 181 },
123 { "navajowhite", 255, 222, 173 },
124 { "navy", 0, 0, 128 },
125 { "oldlace", 253, 245, 230 },
126 { "olive", 128, 128, 0 },
127 { "olivedrab", 107, 142, 35 },
128 { "orange", 255, 165, 0 },
129 { "orangered", 255, 69, 0 },
130 { "orchid", 218, 112, 214 },
131 { "palegoldenrod", 238, 232, 170 },
132 { "palegreen", 152, 251, 152 },
133 { "paleturquoise", 175, 238, 238 },
134 { "palevioletred", 219, 112, 147 },
135 { "papayawhip", 255, 239, 213 },
136 { "peachpuff", 255, 218, 185 },
137 { "peru", 205, 133, 63 },
138 { "pink", 255, 192, 203 },
139 { "plum", 221, 160, 221 },
140 { "powderblue", 176, 224, 230 },
141 { "purple", 128, 0, 128 },
142 { "red", 255, 0, 0 },
143 { "rosybrown", 188, 143, 143 },
144 { "royalblue", 65, 105, 225 },
145 { "saddlebrown", 139, 69, 19 },
146 { "salmon", 250, 128, 114 },
147 { "sandybrown", 244, 164, 96 },
148 { "seagreen", 46, 139, 87 },
149 { "seashell", 255, 245, 238 },
150 { "sienna", 160, 82, 45 },
151 { "silver", 192, 192, 192 },
152 { "skyblue", 135, 206, 235 },
153 { "slateblue", 106, 90, 205 },
154 { "slategray", 112, 128, 144 },
155 { "slategrey", 112, 128, 144 },
156 { "snow", 255, 250, 250 },
157 { "springgreen", 0, 255, 127 },
158 { "steelblue", 70, 130, 180 },
159 { "tan", 210, 180, 140 },
160 { "teal", 0, 128, 128 },
161 { "thistle", 216, 191, 216 },
162 { "tomato", 255, 99, 71 },
163 { "turquoise", 64, 224, 208 },
164 { "violet", 238, 130, 238 },
165 { "wheat", 245, 222, 179 },
166 { "white", 255, 255, 255 },
167 { "whitesmoke", 245, 245, 245 },
168 { "yellow", 255, 255, 0 },
169 { "yellowgreen", 154, 205, 50 },
170};
171
172static int unhex(int chr)
173{
174 const char *hextable = "0123456789abcdef";
175 return strchr(hextable, (chr|32)) - hextable;
176}
177
178static int ishex(int chr)
179{
180 if (chr >= '0' && chr <= '9') return 1;
181 if (chr >= 'A' && chr <= 'F') return 1;
182 if (chr >= 'a' && chr <= 'f') return 1;
183 return 0;
184}
185
186void
187svg_parse_color(fz_context *ctx, svg_document *doc, const char *str, float *rgb)
188{
189 int i, l, m, r, cmp, n;
190
191 rgb[0] = 0.0f;
192 rgb[1] = 0.0f;
193 rgb[2] = 0.0f;
194
195 /* Crack hex-coded RGB */
196
197 if (str[0] == '#')
198 {
199 str ++;
200
201 n = strlen(str);
202 if (n == 3 || (n > 3 && !ishex(str[3])))
203 {
204 rgb[0] = (unhex(str[0]) * 16 + unhex(str[0])) / 255.0f;
205 rgb[1] = (unhex(str[1]) * 16 + unhex(str[1])) / 255.0f;
206 rgb[2] = (unhex(str[2]) * 16 + unhex(str[2])) / 255.0f;
207 return;
208 }
209
210 if (n >= 6)
211 {
212 rgb[0] = (unhex(str[0]) * 16 + unhex(str[1])) / 255.0f;
213 rgb[1] = (unhex(str[2]) * 16 + unhex(str[3])) / 255.0f;
214 rgb[2] = (unhex(str[4]) * 16 + unhex(str[5])) / 255.0f;
215 return;
216 }
217
218 return;
219 }
220
221 /* rgb(X,Y,Z) -- whitespace allowed around numbers */
222
223 else if (strstr(str, "rgb("))
224 {
225 int numberlen = 0;
226 char numberbuf[50];
227
228 str = str + 4;
229
230 for (i = 0; i < 3; i++)
231 {
232 while (svg_is_whitespace_or_comma(*str))
233 str ++;
234
235 if (svg_is_digit(*str))
236 {
237 numberlen = 0;
238 while (svg_is_digit(*str) && numberlen < sizeof(numberbuf) - 1)
239 numberbuf[numberlen++] = *str++;
240 numberbuf[numberlen] = 0;
241
242 if (*str == '%')
243 {
244 str ++;
245 rgb[i] = fz_atof(numberbuf) / 100.0f;
246 }
247 else
248 {
249 rgb[i] = fz_atof(numberbuf) / 255.0f;
250 }
251 }
252 }
253
254 return;
255 }
256
257 /* TODO: parse icc-profile(X,Y,Z,W) syntax */
258
259 /* Search for a pre-defined color */
260
261 else
262 {
263 char keyword[50], *p;
264 fz_strlcpy(keyword, str, sizeof keyword);
265 p = keyword;
266 while (*p && *p >= 'a' && *p <= 'z')
267 ++p;
268 *p = 0;
269
270 l = 0;
271 r = sizeof(svg_predefined_colors) / sizeof(svg_predefined_colors[0]);
272
273 while (l <= r)
274 {
275 m = (l + r) / 2;
276 cmp = strcmp(svg_predefined_colors[m].name, keyword);
277 if (cmp > 0)
278 r = m - 1;
279 else if (cmp < 0)
280 l = m + 1;
281 else
282 {
283 rgb[0] = svg_predefined_colors[m].red / 255.0f;
284 rgb[1] = svg_predefined_colors[m].green / 255.0f;
285 rgb[2] = svg_predefined_colors[m].blue / 255.0f;
286 return;
287 }
288 }
289 }
290}
291
292void
293svg_parse_color_from_style(fz_context *ctx, svg_document *doc, const char *str,
294 int *fill_is_set, float fill[3],
295 int *stroke_is_set, float stroke[3])
296{
297 const char *p;
298
299 p = strstr(str, "fill:");
300 if (p)
301 {
302 p += 5;
303 while (*p && svg_is_whitespace(*p))
304 ++p;
305 if (strncmp(p, "none", 4) != 0)
306 {
307 svg_parse_color(ctx, doc, p, fill);
308 *fill_is_set = 1;
309 }
310 }
311
312 p = strstr(str, "stroke:");
313 if (p)
314 {
315 p += 7;
316 while (*p && svg_is_whitespace(*p))
317 ++p;
318 if (strncmp(p, "none", 4) != 0)
319 {
320 svg_parse_color(ctx, doc, p, stroke);
321 *stroke_is_set = 1;
322 }
323 }
324}
325