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"
#include <math.h>     // for isnan()

struct icon_data {
  GdkPixbuf **data;
  int count;
} icons[] = {
  { NULL, CACHE_TYPE_MAX+5 },  /* ICON_CACHE_TYPE      */
  { NULL, CACHE_TYPE_MAX+5 },  /* ICON_CACHE_TYPE_SEMI */
  { NULL, CACHE_TYPE_MAX+5 },  /* ICON_CACHE_TYPE_1_5X */
  { NULL, CACHE_TYPE_MAX+5 },  /* ICON_CACHE_TYPE_2X   */
  { 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, 2 },                 /* ICON_TB              */
  { NULL, 6 },                 /* ICON_MISC            */
  { NULL, WPT_SYM_MAX+3 },     /* ICON_POS             */
  { NULL, 3 },                 /* ICON_FILE            */
  { NULL, -1 }
};

/* ICON_CACHE_TYPE / ICON_CACHE_TYPE_SEMI / ICON_CACHE_TYPE_2X */
const char *cache_type_icon_name[] = {
  "traditional", "multi",      "mystery", "virtual", "webcam", "event",
  "letterbox",   "earthcache", "wherigo", "megaevent", "cito",

  /* special overlays */
  "ovl_override", "ovl_found", "ovl_note", "ovl_mine",

  NULL
};

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

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

/* 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", 
  NULL
};  

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

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

/* ICON_TB         */
const char *tb_icon_name[] = {
  "tb", "coin", NULL
};

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

/* ICON_POS        */
const char *pos_icon_name[] = {
  "wpt_multistage", "wpt_parking", "wpt_final", "wpt_question",
  "wpt_trailhead", "wpt_refpoint", 

  "pos_btn", "pos_gps",
  NULL
};

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

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++) {
    g_assert(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) {
      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) {
        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;
      }   
    }
  }

  g_assert(!names[i]);
}

void icons_init(void) {

  /* load cache type icons */
  icons_load(ICON_CACHE_TYPE, "32x32/cache_type_%s.%s", cache_type_icon_name);

  /* load semitransparent cache type icons */
  icons_load(ICON_CACHE_TYPE_SEMI, "32x32/cache_type_%s_semi.%s", cache_type_icon_name);

  /* load 150% sized cache type icons */
  icons_load(ICON_CACHE_TYPE_1_5X, "48x48/cache_type_%s.%s", cache_type_icon_name);

  /* load double sized cache type icons */
  icons_load(ICON_CACHE_TYPE_2X, "64x64/cache_type_%s.%s", cache_type_icon_name);

  /* load cache container/size icons */
#if !defined(USE_MAEMO) || (MAEMO_VERSION_MAJOR < 5)
  icons_load(ICON_CACHE_SIZE, "45x12/cache_size_%s.%s", cache_size_icon_name);
#else
  icons_load(ICON_CACHE_SIZE, "90x24/cache_size_%s.%s", cache_size_icon_name);
#endif

  /* load cache difficulty/terrain/quality icons */
#if !defined(USE_MAEMO) || (MAEMO_VERSION_MAJOR < 5)
  icons_load(ICON_STARS, "12x12/stars%s.%s", stars_icon_name);
#else
  icons_load(ICON_STARS, "16x16/stars%s.%s", stars_icon_name);
#endif

  /* load cache log icons */
  icons_load(ICON_LOG, "32x32/log_icon_%s.%s", log_icon_name);

  /* load icons to visualize heading */
#if !defined(USE_MAEMO) || (MAEMO_VERSION_MAJOR < 5)
  icons_load(ICON_HEADING, "32x32/heading_%s.%s", heading_icon_name);
#else
  icons_load(ICON_HEADING, "48x48/heading_%s.%s", heading_icon_name);
#endif

  /* load waypoint icons */
  icons_load(ICON_WPT, "32x32/wpt_%s.%s", wpt_sym_icon_name);

  /* load travelbug/coin icons */
  icons_load(ICON_TB, "32x32/%s.%s", tb_icon_name);

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

  /* load pos icons */
  icons_load(ICON_POS, "16x16/%s.%s", pos_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	#include <math.h> // for isnan()
22
23	struct icon_data {
24	GdkPixbuf **data;
25	int count;
26	} icons[] = {
27	{ NULL, CACHE_TYPE_MAX+5 }, /* ICON_CACHE_TYPE */
28	{ NULL, CACHE_TYPE_MAX+5 }, /* ICON_CACHE_TYPE_SEMI */
29	{ NULL, CACHE_TYPE_MAX+5 }, /* ICON_CACHE_TYPE_1_5X */
30	{ NULL, CACHE_TYPE_MAX+5 }, /* ICON_CACHE_TYPE_2X */
31	{ NULL, CACHE_CONT_MAX+1 }, /* ICON_CACHE_SIZE */
32	{ NULL, 9 }, /* ICON_STARS */
33	{ NULL, LOG_TYPE_MAX+1 }, /* ICON_LOG */
34	{ NULL, 9 }, /* ICON_HEADING */
35	{ NULL, WPT_SYM_MAX+1 }, /* ICON_WPT */
36	{ NULL, 2 }, /* ICON_TB */
37	{ NULL, 6 }, /* ICON_MISC */
38	{ NULL, WPT_SYM_MAX+3 }, /* ICON_POS */
39	{ NULL, 3 }, /* ICON_FILE */
40	{ NULL, -1 }
41	};
42
43	/* ICON_CACHE_TYPE / ICON_CACHE_TYPE_SEMI / ICON_CACHE_TYPE_2X */
44	const char *cache_type_icon_name[] = {
45	"traditional", "multi", "mystery", "virtual", "webcam", "event",
46	"letterbox", "earthcache", "wherigo", "megaevent", "cito",
47
48	/* special overlays */
49	"ovl_override", "ovl_found", "ovl_note", "ovl_mine",
50
51	NULL
52	};
53
54	/* ICON_CACHE_SIZE */
55	const char *cache_size_icon_name[] = {
56	"regular", "small", "micro", "other", "not_chosen", "large",
57	"virtual", NULL
58	};
59
60	/* ICON_STARS */
61	const char *stars_icon_name[] = {
62	"1", "1_5", "2", "2_5", "3", "3_5", "4", "4_5", "5", NULL
63	};
64
65	/* ICON_LOG */
66	const char *log_icon_name[] = {
67	"smile", "sad", "maint", "note", "big_smile", "enabled",
68	"greenlight", "rsvp", "attended", "camera", "disabled",
69	"needsmaint", "coord_update",
70	"traffic_cone",
71	"traffic_cone", /* LOG_TYPE_NEEDS_ARCHIVED */
72	"traffic_cone",
73	NULL
74	};
75
76	/* ICON_HEADING */
77	const char *heading_icon_name[] = {
78	"n", "ne", "e", "se", "s", "sw", "w", "nw", "none", NULL
79	};
80
81	/* ICON_WPT */
82	const char *wpt_sym_icon_name[] = {
83	"multistage", "parking", "final", "question",
84	"trailhead", "refpoint", NULL
85	};
86
87	/* ICON_TB */
88	const char *tb_icon_name[] = {
89	"tb", "coin", NULL
90	};
91
92	/* ICON_MISC */
93	const char *misc_icon_name[] = {
94	"maemo-mapper-out", "locked", "unlocked",
95	"maemo-mapper-in", "delete", "paypal",
96	NULL
97	};
98
99	/* ICON_POS */
100	const char *pos_icon_name[] = {
101	"wpt_multistage", "wpt_parking", "wpt_final", "wpt_question",
102	"wpt_trailhead", "wpt_refpoint",
103
104	"pos_btn", "pos_gps",
105	NULL
106	};
107
108	/* ICON_FILE */
109	const char *file_icon_name[] = {
110	"gc", "folder", "zip", NULL
111	};
112
113	static void icons_load(int type, char format, const char names[]) {
114	int i;
115
116	if(!icons[type].count) {
117	icons[type].data = NULL;
118	return;
119	}
120
121	icons[type].data = malloc(sizeof(GdkPixbuf ) icons[type].count);
122
123	for(i=0;i<icons[type].count;i++) {
124	g_assert(names[i]);
125
126	GError *error = NULL;
127	char filename[128];
128	strcpy(filename, ICONPATH);
129	snprintf(filename+strlen(filename),
130	sizeof(filename)-strlen(filename), format, names[i], "png");
131	icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);
132
133	if(error) {
134	error = NULL;
135	/* try again in local dir */
136	strcpy(filename, "./data/icons/");
137	snprintf(filename+strlen(filename),
138	sizeof(filename)-strlen(filename), format, names[i], "png");
139	icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);
140
141	if(error) {
142	icons[type].data[i] = NULL;
143	g_warning("Could not load cache type icon %s: %s\n",
144	names[i], error->message);
145	g_error_free(error);
146	error = NULL;
147	}
148	}
149	}
150
151	g_assert(!names[i]);
152	}
153
154	void icons_init(void) {
155
156	/* load cache type icons */
157	icons_load(ICON_CACHE_TYPE, "32x32/cache_type_%s.%s", cache_type_icon_name);
158
159	/* load semitransparent cache type icons */
160	icons_load(ICON_CACHE_TYPE_SEMI, "32x32/cache_type_%s_semi.%s", cache_type_icon_name);
161
162	/* load 150% sized cache type icons */
163	icons_load(ICON_CACHE_TYPE_1_5X, "48x48/cache_type_%s.%s", cache_type_icon_name);
164
165	/* load double sized cache type icons */
166	icons_load(ICON_CACHE_TYPE_2X, "64x64/cache_type_%s.%s", cache_type_icon_name);
167
168	/* load cache container/size icons */
169	#if !defined(USE_MAEMO) \|\| (MAEMO_VERSION_MAJOR < 5)
170	icons_load(ICON_CACHE_SIZE, "45x12/cache_size_%s.%s", cache_size_icon_name);
171	#else
172	icons_load(ICON_CACHE_SIZE, "90x24/cache_size_%s.%s", cache_size_icon_name);
173	#endif
174
175	/* load cache difficulty/terrain/quality icons */
176	#if !defined(USE_MAEMO) \|\| (MAEMO_VERSION_MAJOR < 5)
177	icons_load(ICON_STARS, "12x12/stars%s.%s", stars_icon_name);
178	#else
179	icons_load(ICON_STARS, "16x16/stars%s.%s", stars_icon_name);
180	#endif
181
182	/* load cache log icons */
183	icons_load(ICON_LOG, "32x32/log_icon_%s.%s", log_icon_name);
184
185	/* load icons to visualize heading */
186	#if !defined(USE_MAEMO) \|\| (MAEMO_VERSION_MAJOR < 5)
187	icons_load(ICON_HEADING, "32x32/heading_%s.%s", heading_icon_name);
188	#else
189	icons_load(ICON_HEADING, "48x48/heading_%s.%s", heading_icon_name);
190	#endif
191
192	/* load waypoint icons */
193	icons_load(ICON_WPT, "32x32/wpt_%s.%s", wpt_sym_icon_name);
194
195	/* load travelbug/coin icons */
196	icons_load(ICON_TB, "32x32/%s.%s", tb_icon_name);
197
198	/* load misc icons */
199	icons_load(ICON_MISC, "%s.%s", misc_icon_name);
200
201	/* load pos icons */
202	icons_load(ICON_POS, "16x16/%s.%s", pos_icon_name);
203
204	/* load file icons */
205	icons_load(ICON_FILE, "file_%s.%s", file_icon_name);
206	}
207
208	void icons_free(void) {
209	int i;
210	struct icon_data *icon = icons;
211
212	while(icon->count >= 0) {
213	if(icon->count) {
214	for(i=0;i<icon->count;i++)
215	if(icon->data[i])
216	gdk_pixbuf_unref(icon->data[i]);
217
218	free(icon->data);
219	}
220
221	icon++;
222	}
223	}
224
225	GdkPixbuf *icon_get(int type, int num) {
226	if(num < 0) return NULL;
227	if(num >= icons[type].count) return NULL;
228
229	return icons[type].data[num];
230	}
231
232	GtkWidget *icon_get_widget(int type, int num) {
233	GdkPixbuf *pbuf = icon_get(type, num);
234	if(!pbuf) return NULL;
235
236	return gtk_image_new_from_pixbuf(pbuf);
237	}
238
239	GdkPixbuf *icon_bearing(pos_t from, pos_t to) {
240	if(isnan(from.lat) \|\| isnan(from.lon) \|\|
241	isnan(to.lat) \|\| isnan(to.lon))
242	return icon_get(ICON_HEADING, 8);
243
244	int idx = (gpx_pos_get_bearing(from, to)+22.5)/45.0;
245
246	/* make sure we stay in icon bounds */
247	if(idx < 0) idx += 8;
248	if(idx > 7) idx -= 8;
249	return icon_get(ICON_HEADING, idx);
250	}
251