trunk/src/icons.c

/*
 * Copyright (C) 2008 Till Harbaum <till@harbaum.org>.
 *
 * This file is part of GPXView.
 *
 * GPXView is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * GPXView is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with GPXView.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "gpxview.h"

struct icon_data {
  GdkPixbuf **data;
  int count;
} icons[] = {
  { NULL, CACHE_TYPE_MAX+1 },  /* ICON_CACHE_TYPE */
  { NULL, CACHE_CONT_MAX+1 },  /* ICON_CACHE_SIZE */
  { NULL, 9 },                 /* ICON_STARS      */
  { NULL, LOG_TYPE_MAX+1 },    /* ICON_LOG        */
  { NULL, 9 },                 /* ICON_HEADING    */
  { NULL, WPT_SYM_MAX+1 },     /* ICON_WPT        */
  { NULL, 1 },                 /* ICON_TB         */
  { NULL, 8 },                 /* ICON_MISC       */
  { NULL, 3 },                 /* ICON_FILE       */
  { NULL, -1 }
};

/* ICON_CACHE_TYPE */
const char *cache_type_icon_name[] = {
  "traditional", "multi",      "mystery", "virtual", "webcam", "event",
  "letterbox",   "earthcache", "wherigo", "megaevent", "cito"
};

/* ICON_CACHE_SIZE */
const char *cache_size_icon_name[] = {
  "regular", "small",      "micro", "other", "not_chosen", "large",
  "virtual" 
};

/* ICON_STARS      */
const char *stars_icon_name[] = {
  "1", "1_5", "2", "2_5", "3", "3_5", "4", "4_5", "5" 
};

/* ICON_LOG        */
const char *log_icon_name[] = {
  "smile", "sad", "maint", "note", "big_smile", "enabled",
  "greenlight", "rsvp", "attended", "camera", "disabled",
  "needsmaint", "coord_update",
  "traffic_cone",
  "traffic_cone", /* LOG_TYPE_NEEDS_ARCHIVED */
  "traffic_cone",
};  

/* ICON_HEADING    */
const char *heading_icon_name[] = {
  "n", "ne", "e", "se", "s", "sw", "w", "nw", "none"
};

/* ICON_WPT        */
const char *wpt_sym_icon_name[] = {
  "multistage", "parking", "final", "question",
  "trailhead", "refpoint",
};

/* ICON_TB         */
const char *tb_icon_name[] = {
  "tb_coin"
};

/* ICON_MISC         */
const char *misc_icon_name[] = {
  "maemo-mapper-out", "override", "locked", "unlocked", "found", 
  "maemo-mapper-in", "note", "delete"
};

/* ICON_FILE         */
const char *file_icon_name[] = {
  "gc", "folder", "zip"
};

static void icons_load(int type, char *format, const char *names[]) {
  int i;

  if(!icons[type].count) {
    icons[type].data = NULL;
    return;
  }

  icons[type].data = malloc(sizeof(GdkPixbuf *) * icons[type].count);
  
  for(i=0;i<icons[type].count;i++) {
    if(names[i]) {
      GError *error = NULL;
      char filename[128];
      strcpy(filename, ICONPATH);
      snprintf(filename+strlen(filename),
              sizeof(filename)-strlen(filename), format, names[i], "png");
      icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);

      if(error) {
        /* try gif */
        error = NULL;
        strcpy(filename, ICONPATH);
        snprintf(filename+strlen(filename),
                 sizeof(filename)-strlen(filename), format, names[i], "gif");
        icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);

        if(error) {
          error = NULL;
          /* try again in local dir */
          strcpy(filename, "./data/icons/");
          snprintf(filename+strlen(filename), 
                   sizeof(filename)-strlen(filename), format, names[i], "png");
          icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);
          
          if(error) {
            error = NULL;
            /* try gif */
            strcpy(filename, "./data/icons/");
            snprintf(filename+strlen(filename), 
                   sizeof(filename)-strlen(filename), format, names[i], "gif");
            icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);
            
            
            if(error) {
              icons[type].data[i] = NULL;
              g_warning("Could not load cache type icon %s: %s\n", 
                        names[i], error->message);
              g_error_free(error);
              error = NULL;
            }
          }
        }   
      }
    } else
      icons[type].data[i] = NULL;
  }
}

void icons_init(void) {

  /* load cache type icons */
  icons_load(ICON_CACHE_TYPE, "cache_type_%s.%s", cache_type_icon_name);

  /* load cache container/size icons */
  icons_load(ICON_CACHE_SIZE, "cache_size_%s.%s", cache_size_icon_name);

  /* load cache difficulty/terrain icons */
  icons_load(ICON_STARS, "stars%s.%s", stars_icon_name);

  /* load cache difficulty/terrain icons */
  icons_load(ICON_LOG, "log_icon_%s.%s", log_icon_name);

  /* load icons to visualize heading */
  icons_load(ICON_HEADING, "heading_%s.%s", heading_icon_name);

  /* load icons to visualize heading */
  icons_load(ICON_WPT, "wpt_%s.%s", wpt_sym_icon_name);

  /* load travelbug icon */
  icons_load(ICON_TB, "%s.%s", tb_icon_name);

  /* load misc icons */
  icons_load(ICON_MISC, "%s.%s", misc_icon_name);

  /* load file icons */
  icons_load(ICON_FILE, "file_%s.%s", file_icon_name);
}

void icons_free(void) {
  int i;
  struct icon_data *icon = icons;

  while(icon->count >= 0) {
    if(icon->count) {
      for(i=0;i<icon->count;i++)
        if(icon->data[i])
          gdk_pixbuf_unref(icon->data[i]);

      free(icon->data);
    }

    icon++;
  }
}

GdkPixbuf *icon_get(int type, int num) {
  if(num < 0)                  return NULL;
  if(num >= icons[type].count) return NULL;

  return icons[type].data[num];
}

GtkWidget *icon_get_widget(int type, int num) {
  GdkPixbuf *pbuf = icon_get(type, num);
  if(!pbuf) return NULL;

  return gtk_image_new_from_pixbuf(pbuf);
}

GdkPixbuf *icon_bearing(pos_t from, pos_t to) {
  if(isnan(from.lat) || isnan(from.lon) || 
     isnan(to.lat) || isnan(to.lon))
    return icon_get(ICON_HEADING, 8);

  int idx = (gpx_pos_get_bearing(from, to)+22.5)/45.0;

  /* make sure we stay in icon bounds */
  if(idx < 0) idx += 8;
  if(idx > 7) idx -= 8;
  return icon_get(ICON_HEADING, idx);
}

1	/*
2	* Copyright (C) 2008 Till Harbaum <till@harbaum.org>.
3	*
4	* This file is part of GPXView.
5	*
6	* GPXView is free software: you can redistribute it and/or modify
7	* it under the terms of the GNU General Public License as published by
8	* the Free Software Foundation, either version 3 of the License, or
9	* (at your option) any later version.
10	*
11	* GPXView is distributed in the hope that it will be useful,
12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	* GNU General Public License for more details.
15	*
16	* You should have received a copy of the GNU General Public License
17	* along with GPXView. If not, see <http://www.gnu.org/licenses/>.
18	*/
19
20	#include "gpxview.h"
21
22	struct icon_data {
23	GdkPixbuf **data;
24	int count;
25	} icons[] = {
26	{ NULL, CACHE_TYPE_MAX+1 }, /* ICON_CACHE_TYPE */
27	{ NULL, CACHE_CONT_MAX+1 }, /* ICON_CACHE_SIZE */
28	{ NULL, 9 }, /* ICON_STARS */
29	{ NULL, LOG_TYPE_MAX+1 }, /* ICON_LOG */
30	{ NULL, 9 }, /* ICON_HEADING */
31	{ NULL, WPT_SYM_MAX+1 }, /* ICON_WPT */
32	{ NULL, 1 }, /* ICON_TB */
33	{ NULL, 8 }, /* ICON_MISC */
34	{ NULL, 3 }, /* ICON_FILE */
35	{ NULL, -1 }
36	};
37
38	/* ICON_CACHE_TYPE */
39	const char *cache_type_icon_name[] = {
40	"traditional", "multi", "mystery", "virtual", "webcam", "event",
41	"letterbox", "earthcache", "wherigo", "megaevent", "cito"
42	};
43
44	/* ICON_CACHE_SIZE */
45	const char *cache_size_icon_name[] = {
46	"regular", "small", "micro", "other", "not_chosen", "large",
47	"virtual"
48	};
49
50	/* ICON_STARS */
51	const char *stars_icon_name[] = {
52	"1", "1_5", "2", "2_5", "3", "3_5", "4", "4_5", "5"
53	};
54
55	/* ICON_LOG */
56	const char *log_icon_name[] = {
57	"smile", "sad", "maint", "note", "big_smile", "enabled",
58	"greenlight", "rsvp", "attended", "camera", "disabled",
59	"needsmaint", "coord_update",
60	"traffic_cone",
61	"traffic_cone", /* LOG_TYPE_NEEDS_ARCHIVED */
62	"traffic_cone",
63	};
64
65	/* ICON_HEADING */
66	const char *heading_icon_name[] = {
67	"n", "ne", "e", "se", "s", "sw", "w", "nw", "none"
68	};
69
70	/* ICON_WPT */
71	const char *wpt_sym_icon_name[] = {
72	"multistage", "parking", "final", "question",
73	"trailhead", "refpoint",
74	};
75
76	/* ICON_TB */
77	const char *tb_icon_name[] = {
78	"tb_coin"
79	};
80
81	/* ICON_MISC */
82	const char *misc_icon_name[] = {
83	"maemo-mapper-out", "override", "locked", "unlocked", "found",
84	"maemo-mapper-in", "note", "delete"
85	};
86
87	/* ICON_FILE */
88	const char *file_icon_name[] = {
89	"gc", "folder", "zip"
90	};
91
92	static void icons_load(int type, char format, const char names[]) {
93	int i;
94
95	if(!icons[type].count) {
96	icons[type].data = NULL;
97	return;
98	}
99
100	icons[type].data = malloc(sizeof(GdkPixbuf ) icons[type].count);
101
102	for(i=0;i<icons[type].count;i++) {
103	if(names[i]) {
104	GError *error = NULL;
105	char filename[128];
106	strcpy(filename, ICONPATH);
107	snprintf(filename+strlen(filename),
108	sizeof(filename)-strlen(filename), format, names[i], "png");
109	icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);
110
111	if(error) {
112	/* try gif */
113	error = NULL;
114	strcpy(filename, ICONPATH);
115	snprintf(filename+strlen(filename),
116	sizeof(filename)-strlen(filename), format, names[i], "gif");
117	icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);
118
119	if(error) {
120	error = NULL;
121	/* try again in local dir */
122	strcpy(filename, "./data/icons/");
123	snprintf(filename+strlen(filename),
124	sizeof(filename)-strlen(filename), format, names[i], "png");
125	icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);
126
127	if(error) {
128	error = NULL;
129	/* try gif */
130	strcpy(filename, "./data/icons/");
131	snprintf(filename+strlen(filename),
132	sizeof(filename)-strlen(filename), format, names[i], "gif");
133	icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);
134
135
136	if(error) {
137	icons[type].data[i] = NULL;
138	g_warning("Could not load cache type icon %s: %s\n",
139	names[i], error->message);
140	g_error_free(error);
141	error = NULL;
142	}
143	}
144	}
145	}
146	} else
147	icons[type].data[i] = NULL;
148	}
149	}
150
151	void icons_init(void) {
152
153	/* load cache type icons */
154	icons_load(ICON_CACHE_TYPE, "cache_type_%s.%s", cache_type_icon_name);
155
156	/* load cache container/size icons */
157	icons_load(ICON_CACHE_SIZE, "cache_size_%s.%s", cache_size_icon_name);
158
159	/* load cache difficulty/terrain icons */
160	icons_load(ICON_STARS, "stars%s.%s", stars_icon_name);
161
162	/* load cache difficulty/terrain icons */
163	icons_load(ICON_LOG, "log_icon_%s.%s", log_icon_name);
164
165	/* load icons to visualize heading */
166	icons_load(ICON_HEADING, "heading_%s.%s", heading_icon_name);
167
168	/* load icons to visualize heading */
169	icons_load(ICON_WPT, "wpt_%s.%s", wpt_sym_icon_name);
170
171	/* load travelbug icon */
172	icons_load(ICON_TB, "%s.%s", tb_icon_name);
173
174	/* load misc icons */
175	icons_load(ICON_MISC, "%s.%s", misc_icon_name);
176
177	/* load file icons */
178	icons_load(ICON_FILE, "file_%s.%s", file_icon_name);
179	}
180
181	void icons_free(void) {
182	int i;
183	struct icon_data *icon = icons;
184
185	while(icon->count >= 0) {
186	if(icon->count) {
187	for(i=0;i<icon->count;i++)
188	if(icon->data[i])
189	gdk_pixbuf_unref(icon->data[i]);
190
191	free(icon->data);
192	}
193
194	icon++;
195	}
196	}
197
198	GdkPixbuf *icon_get(int type, int num) {
199	if(num < 0) return NULL;
200	if(num >= icons[type].count) return NULL;
201
202	return icons[type].data[num];
203	}
204
205	GtkWidget *icon_get_widget(int type, int num) {
206	GdkPixbuf *pbuf = icon_get(type, num);
207	if(!pbuf) return NULL;
208
209	return gtk_image_new_from_pixbuf(pbuf);
210	}
211
212	GdkPixbuf *icon_bearing(pos_t from, pos_t to) {
213	if(isnan(from.lat) \|\| isnan(from.lon) \|\|
214	isnan(to.lat) \|\| isnan(to.lon))
215	return icon_get(ICON_HEADING, 8);
216
217	int idx = (gpx_pos_get_bearing(from, to)+22.5)/45.0;
218
219	/* make sure we stay in icon bounds */
220	if(idx < 0) idx += 8;
221	if(idx > 7) idx -= 8;
222	return icon_get(ICON_HEADING, idx);
223	}
224