Mercurial > MadButterfly

annotate src/sprite.c @ 872:bcc63b20d5c6

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mbapp.js support to create an application with existed window
author Thinker K.F. Li <thinker@codemud.net>
date Fri, 24 Sep 2010 16:00:04 +0800
parents 586e50f82c1f
children 2cbe3721dc9a
rev   line source
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1 // -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*-
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2 // vim: sw=4:ts=8:sts=4
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3 #include <stdio.h>
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4 #include <stdlib.h>
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5 #include <string.h>
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6 #include "mb_graph_engine.h"
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7 #include <dlfcn.h>
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8 #include <sys/stat.h>
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9 #include "mb_types.h"
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10 #include "mb_shapes.h"
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11 #include "mb_tools.h"
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12 #include "mb_redraw_man.h"
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13 #include "mb_observer.h"
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14 #include "mb_prop.h"
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15
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16 #define ASSERT(x)
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17 #define OK 0
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18 #define ERR 1
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19
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20 static char *sprite_search_path = NULL;
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21
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22 static char *sprite_search_so(const char *name) {
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23 struct stat st;
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24 int fsz;
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25 char *fullname;
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26 int r;
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27
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28 if(sprite_search_path == NULL)
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29 sprite_search_path = strdup("/usr/share/madbutterffly");
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30
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31 fsz = strlen(sprite_search_path) + strlen(name) + 5;
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32 fullname = (char *)malloc(fsz);
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33
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34 snprintf(fullname, fsz, "%s/%s.so", sprite_search_path, name);
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35 r = stat(fullname, &st);
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36 if(r != 0) {
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37 free(fullname);
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38 return NULL;
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39 }
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40
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41 return fullname;
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42 }
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43
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44 void sprite_set_search_path(char *path) {
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45 int sz;
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46
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47 if (sprite_search_path)
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48 free(sprite_search_path);
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49
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50 sprite_search_path = strdup(path);
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51
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52 sz = strlen(sprite_search_path);
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53 if(sprite_search_path[sz - 1] == '/')
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54 sprite_search_path[sz - 1] = 0;
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55 }
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56
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57 mb_sprite_t *
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58 sprite_load(const char *name, redraw_man_t *rdman, coord_t *root) {
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59 char cnstr_name[256];
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60 char *so_path;
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61 const char *bname;
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62 void *handle;
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63 mb_sprite_t *(*cnstr)(redraw_man_t *, coord_t *);
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64 mb_sprite_t *obj;
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65 int r;
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66
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67 so_path = sprite_search_so(name);
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68 if(so_path == NULL)
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69 return NULL;
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70
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71 handle = dlopen(so_path, RTLD_LAZY);
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72 free(so_path);
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73 if (handle == NULL)
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74 return NULL;
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75
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76 bname = strrchr(name, '/');
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77 if(bname != NULL && strlen(bname) > 250)
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78 return NULL;
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79
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80 if(bname == NULL)
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81 bname = name;
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82 else
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83 bname++;
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84
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85 snprintf(cnstr_name, sizeof(cnstr_name), "%s_new", bname);
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86 cnstr = dlsym(handle, cnstr_name);
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87 if (cnstr == NULL)
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88 return NULL;
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89
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90 obj = cnstr(rdman, root);
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91
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92 return obj;
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93 }