annotate src/sprite.c @ 403:aee0f66b1154

Compute extents of a styled text
author Thinker K.F. Li <thinker@branda.to>
date Tue, 16 Jun 2009 23:01:38 +0800
parents 25bc0e753b88
children 31b6633e3538
rev   line source
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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include <string.h>
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4 #include <cairo.h>
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5 #include <dlfcn.h>
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6 #include <sys/stat.h>
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7 #include "mb_types.h"
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8 #include "mb_shapes.h"
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9 #include "mb_tools.h"
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10 #include "mb_redraw_man.h"
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11 #include "mb_observer.h"
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12 #include "mb_prop.h"
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13
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14 static char *Sprite_Search_Path=NULL;
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15 static int sprite_search_so(char *path, int len, const char *name)
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16 {
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17 struct stat st;
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18
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19 if (Sprite_Search_Path == NULL) {
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20 Sprite_Search_Path = strdup("/usr/share/madbutterffly");
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21 }
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22
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23 snprintf(path, len, "./%s.so", name);
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24 if (stat(path, &st)==0) {
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25 return 0;
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26 }
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27 snprintf(path, len, "%s/%s.so", Sprite_Search_Path, name);
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28 if (stat(path, &st)==0) {
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29 return 0;
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30 } else {
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31 return -1;
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32 }
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33 }
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34
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35 void sprite_set_search_path(char *path)
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36 {
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37 if (Sprite_Search_Path)
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38 free(Sprite_Search_Path);
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39 Sprite_Search_Path = strdup(path);
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40 }
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41
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42 mb_sprite_t *sprite_load(const char *name, redraw_man_t *rdman, coord_t *root)
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43 {
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44 char path[1024];
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45 const char *s;
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46 void *handle;
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47 mb_sprite_t *(*new)(redraw_man_t *, coord_t *);
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48 mb_sprite_t *obj;
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49
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50 if (sprite_search_so(path, sizeof(path),name)) {
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51 fprintf(stderr," can not find %s in search path\n", name);
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52 return NULL;
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53 }
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54 handle = dlopen(path,RTLD_LAZY);
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55 if (handle == NULL) {
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56 fprintf(stderr, "can not load object %s\n", path);
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57 return NULL;
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58 }
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59 s = name + strlen(name)-1;
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60 while((s != name) && *s != '/') s--;
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61 snprintf(path,sizeof(path), "%s_new", s);
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62 new = dlsym(handle,path);
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63 if (new == NULL) {
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64 fprintf(stderr," Can not find symbol %s at module\n", path);
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65 return NULL;
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66 }
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67 obj = new(rdman, root);
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68 return obj;
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69 }
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70
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71 /* vim: set ts=4 */