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+1 },  /* ICON_CACHE_TYPE      */
  { NULL, CACHE_TYPE_MAX+1 },  /* ICON_CACHE_TYPE_SEMI */
  { NULL, CACHE_TYPE_MAX+1 },  /* ICON_CACHE_TYPE_1_5X */
  { NULL, CACHE_TYPE_MAX+1 },  /* 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, 9 },                 /* ICON_MISC            */
  { 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"
};

/* 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", "paypal"
};

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

  /* load 150% sized cache type icons */
  icons_load(ICON_CACHE_TYPE_1_5X, "cache_type_%s_1.5x.%s", cache_type_icon_name);

  /* load double sized cache type icons */
  icons_load(ICON_CACHE_TYPE_2X, "cache_type_%s_2x.%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	harbaum	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	harbaum	53	#include <math.h> // for isnan()
22	harbaum	1
23			struct icon_data {
24			GdkPixbuf **data;
25			int count;
26			} icons[] = {
27	harbaum	151	{ NULL, CACHE_TYPE_MAX+1 }, /* ICON_CACHE_TYPE */
28			{ NULL, CACHE_TYPE_MAX+1 }, /* ICON_CACHE_TYPE_SEMI */
29	harbaum	176	{ NULL, CACHE_TYPE_MAX+1 }, /* ICON_CACHE_TYPE_1_5X */
30	harbaum	174	{ NULL, CACHE_TYPE_MAX+1 }, /* ICON_CACHE_TYPE_2X */
31	harbaum	151	{ 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	harbaum	178	{ NULL, 2 }, /* ICON_TB */
37	harbaum	151	{ NULL, 9 }, /* ICON_MISC */
38			{ NULL, 3 }, /* ICON_FILE */
39	harbaum	1	{ NULL, -1 }
40			};
41
42	harbaum	174	/* ICON_CACHE_TYPE / ICON_CACHE_TYPE_SEMI / ICON_CACHE_TYPE_2X */
43	harbaum	1	const char *cache_type_icon_name[] = {
44			"traditional", "multi", "mystery", "virtual", "webcam", "event",
45			"letterbox", "earthcache", "wherigo", "megaevent", "cito"
46			};
47
48			/* ICON_CACHE_SIZE */
49			const char *cache_size_icon_name[] = {
50			"regular", "small", "micro", "other", "not_chosen", "large",
51			"virtual"
52			};
53
54			/* ICON_STARS */
55			const char *stars_icon_name[] = {
56			"1", "1_5", "2", "2_5", "3", "3_5", "4", "4_5", "5"
57			};
58
59			/* ICON_LOG */
60			const char *log_icon_name[] = {
61			"smile", "sad", "maint", "note", "big_smile", "enabled",
62			"greenlight", "rsvp", "attended", "camera", "disabled",
63			"needsmaint", "coord_update",
64			"traffic_cone",
65			"traffic_cone", /* LOG_TYPE_NEEDS_ARCHIVED */
66			"traffic_cone",
67			};
68
69			/* ICON_HEADING */
70			const char *heading_icon_name[] = {
71			"n", "ne", "e", "se", "s", "sw", "w", "nw", "none"
72			};
73
74			/* ICON_WPT */
75			const char *wpt_sym_icon_name[] = {
76			"multistage", "parking", "final", "question",
77			"trailhead", "refpoint",
78			};
79
80			/* ICON_TB */
81			const char *tb_icon_name[] = {
82	harbaum	178	"tb", "coin"
83	harbaum	1	};
84
85			/* ICON_MISC */
86			const char *misc_icon_name[] = {
87			"maemo-mapper-out", "override", "locked", "unlocked", "found",
88	harbaum	64	"maemo-mapper-in", "note", "delete", "paypal"
89	harbaum	1	};
90
91			/* ICON_FILE */
92			const char *file_icon_name[] = {
93			"gc", "folder", "zip"
94			};
95
96			static void icons_load(int type, char format, const char names[]) {
97			int i;
98
99			if(!icons[type].count) {
100			icons[type].data = NULL;
101			return;
102			}
103
104			icons[type].data = malloc(sizeof(GdkPixbuf ) icons[type].count);
105
106			for(i=0;i<icons[type].count;i++) {
107			if(names[i]) {
108			GError *error = NULL;
109			char filename[128];
110			strcpy(filename, ICONPATH);
111			snprintf(filename+strlen(filename),
112			sizeof(filename)-strlen(filename), format, names[i], "png");
113			icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);
114
115			if(error) {
116			/* try gif */
117			error = NULL;
118			strcpy(filename, ICONPATH);
119			snprintf(filename+strlen(filename),
120			sizeof(filename)-strlen(filename), format, names[i], "gif");
121			icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);
122
123			if(error) {
124			error = NULL;
125			/* try again in local dir */
126			strcpy(filename, "./data/icons/");
127			snprintf(filename+strlen(filename),
128			sizeof(filename)-strlen(filename), format, names[i], "png");
129			icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);
130
131			if(error) {
132			error = NULL;
133			/* try gif */
134			strcpy(filename, "./data/icons/");
135			snprintf(filename+strlen(filename),
136			sizeof(filename)-strlen(filename), format, names[i], "gif");
137			icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);
138
139
140			if(error) {
141			icons[type].data[i] = NULL;
142			g_warning("Could not load cache type icon %s: %s\n",
143			names[i], error->message);
144			g_error_free(error);
145			error = NULL;
146			}
147			}
148			}
149			}
150			} else
151			icons[type].data[i] = NULL;
152			}
153			}
154
155			void icons_init(void) {
156
157			/* load cache type icons */
158			icons_load(ICON_CACHE_TYPE, "cache_type_%s.%s", cache_type_icon_name);
159
160	harbaum	174	/* load semitransparent cache type icons */
161	harbaum	151	icons_load(ICON_CACHE_TYPE_SEMI, "cache_type_%s_semi.%s", cache_type_icon_name);
162
163	harbaum	176	/* load 150% sized cache type icons */
164			icons_load(ICON_CACHE_TYPE_1_5X, "cache_type_%s_1.5x.%s", cache_type_icon_name);
165
166	harbaum	174	/* load double sized cache type icons */
167			icons_load(ICON_CACHE_TYPE_2X, "cache_type_%s_2x.%s", cache_type_icon_name);
168
169	harbaum	1	/* load cache container/size icons */
170			icons_load(ICON_CACHE_SIZE, "cache_size_%s.%s", cache_size_icon_name);
171
172			/* load cache difficulty/terrain icons */
173			icons_load(ICON_STARS, "stars%s.%s", stars_icon_name);
174
175			/* load cache difficulty/terrain icons */
176			icons_load(ICON_LOG, "log_icon_%s.%s", log_icon_name);
177
178			/* load icons to visualize heading */
179			icons_load(ICON_HEADING, "heading_%s.%s", heading_icon_name);
180
181			/* load icons to visualize heading */
182			icons_load(ICON_WPT, "wpt_%s.%s", wpt_sym_icon_name);
183
184			/* load travelbug icon */
185			icons_load(ICON_TB, "%s.%s", tb_icon_name);
186
187			/* load misc icons */
188			icons_load(ICON_MISC, "%s.%s", misc_icon_name);
189
190			/* load file icons */
191			icons_load(ICON_FILE, "file_%s.%s", file_icon_name);
192			}
193
194			void icons_free(void) {
195			int i;
196			struct icon_data *icon = icons;
197
198			while(icon->count >= 0) {
199			if(icon->count) {
200			for(i=0;i<icon->count;i++)
201			if(icon->data[i])
202			gdk_pixbuf_unref(icon->data[i]);
203
204			free(icon->data);
205			}
206
207			icon++;
208			}
209			}
210
211			GdkPixbuf *icon_get(int type, int num) {
212			if(num < 0) return NULL;
213			if(num >= icons[type].count) return NULL;
214
215			return icons[type].data[num];
216			}
217
218			GtkWidget *icon_get_widget(int type, int num) {
219			GdkPixbuf *pbuf = icon_get(type, num);
220			if(!pbuf) return NULL;
221
222			return gtk_image_new_from_pixbuf(pbuf);
223			}
224
225			GdkPixbuf *icon_bearing(pos_t from, pos_t to) {
226	harbaum	47	if(isnan(from.lat) \|\| isnan(from.lon) \|\|
227			isnan(to.lat) \|\| isnan(to.lon))
228	harbaum	1	return icon_get(ICON_HEADING, 8);
229
230			int idx = (gpx_pos_get_bearing(from, to)+22.5)/45.0;
231
232			/* make sure we stay in icon bounds */
233			if(idx < 0) idx += 8;
234			if(idx > 7) idx -= 8;
235			return icon_get(ICON_HEADING, idx);
236			}
237