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comparison src/shape_path.c @ 8:94b4b5bd8810

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author Thinker K.F. Li <thinker@branda.to>
date Sat, 26 Jul 2008 03:20:49 +0800
parents 569f3168ba53
children 6eecdd331fe7
comparison
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7:569f3168ba53 8:94b4b5bd8810
3 #include <ctype.h> 3 #include <ctype.h>
4 #include <string.h> 4 #include <string.h>
5 #include <cairo.h> 5 #include <cairo.h>
6 #include "mb_types.h" 6 #include "mb_types.h"
7 7
8 /*! \brief Implement respective objects for SVG path tag.
9 *
10 * In user_data or dev_data, 0x00 bytes are padding after commands.
11 * No commands other than 0x00 can resident after 0x00 itself.
12 * It means command processing code can skip commands after a 0x00.
13 */
8 typedef struct _sh_path { 14 typedef struct _sh_path {
9 shape_t shape; 15 shape_t shape;
10 int cmd_len; 16 int cmd_len;
11 int arg_len; 17 int arg_len;
12 char *user_data; 18 char *user_data;
318 324
319 r = sh_path_cmd_arg_cnt(data, &cmd_cnt, &arg_cnt); 325 r = sh_path_cmd_arg_cnt(data, &cmd_cnt, &arg_cnt);
320 if(r == ERR) 326 if(r == ERR)
321 return NULL; 327 return NULL;
322 328
329 /* Align at 4's boundary and keep 2 unused co_aix space
330 * to make logic of transformation from relative to absolute
331 * simple.
332 */
333 cmd_cnt += sizeof(co_aix) * 2;
323 cmd_cnt = (cmd_cnt + 3) & ~0x3; 334 cmd_cnt = (cmd_cnt + 3) & ~0x3;
324 335
325 path = (sh_path_t *)malloc(sizeof(sh_path_t)); 336 path = (sh_path_t *)malloc(sizeof(sh_path_t));
326 path->shape.sh_type = SHT_PATH; 337 path->shape.sh_type = SHT_PATH;
327 path->cmd_len = cmd_cnt; 338 path->cmd_len = cmd_cnt;
483 case 'Z': 494 case 'Z':
484 case 'z': 495 case 'z':
485 cairo_close_path(cr); 496 cairo_close_path(cr);
486 break; 497 break;
487 case '\x0': 498 case '\x0':
499 i = cmd_len; /* padding! Skip remain ones. */
488 break; 500 break;
489 } 501 }
490 } 502 }
491 503
492 cairo_fill(cr); 504 cairo_fill(cr);