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, 12 },                /* 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", "paypal", 
  "user", "zoomin", "zoomout"
};

/* 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	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
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	harbaum	51	{ NULL, 12 }, /* ICON_MISC */
34	harbaum	1	{ 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	harbaum	51	"maemo-mapper-in", "note", "delete", "paypal",
85			"user", "zoomin", "zoomout"
86	harbaum	1	};
87
88			/* ICON_FILE */
89			const char *file_icon_name[] = {
90			"gc", "folder", "zip"
91			};
92
93			static void icons_load(int type, char format, const char names[]) {
94			int i;
95
96			if(!icons[type].count) {
97			icons[type].data = NULL;
98			return;
99			}
100
101			icons[type].data = malloc(sizeof(GdkPixbuf ) icons[type].count);
102
103			for(i=0;i<icons[type].count;i++) {
104			if(names[i]) {
105			GError *error = NULL;
106			char filename[128];
107			strcpy(filename, ICONPATH);
108			snprintf(filename+strlen(filename),
109			sizeof(filename)-strlen(filename), format, names[i], "png");
110			icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);
111
112			if(error) {
113			/* try gif */
114			error = NULL;
115			strcpy(filename, ICONPATH);
116			snprintf(filename+strlen(filename),
117			sizeof(filename)-strlen(filename), format, names[i], "gif");
118			icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);
119
120			if(error) {
121			error = NULL;
122			/* try again in local dir */
123			strcpy(filename, "./data/icons/");
124			snprintf(filename+strlen(filename),
125			sizeof(filename)-strlen(filename), format, names[i], "png");
126			icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);
127
128			if(error) {
129			error = NULL;
130			/* try gif */
131			strcpy(filename, "./data/icons/");
132			snprintf(filename+strlen(filename),
133			sizeof(filename)-strlen(filename), format, names[i], "gif");
134			icons[type].data[i] = gdk_pixbuf_new_from_file(filename, &error);
135
136
137			if(error) {
138			icons[type].data[i] = NULL;
139			g_warning("Could not load cache type icon %s: %s\n",
140			names[i], error->message);
141			g_error_free(error);
142			error = NULL;
143			}
144			}
145			}
146			}
147			} else
148			icons[type].data[i] = NULL;
149			}
150			}
151
152			void icons_init(void) {
153
154			/* load cache type icons */
155			icons_load(ICON_CACHE_TYPE, "cache_type_%s.%s", cache_type_icon_name);
156
157			/* load cache container/size icons */
158			icons_load(ICON_CACHE_SIZE, "cache_size_%s.%s", cache_size_icon_name);
159
160			/* load cache difficulty/terrain icons */
161			icons_load(ICON_STARS, "stars%s.%s", stars_icon_name);
162
163			/* load cache difficulty/terrain icons */
164			icons_load(ICON_LOG, "log_icon_%s.%s", log_icon_name);
165
166			/* load icons to visualize heading */
167			icons_load(ICON_HEADING, "heading_%s.%s", heading_icon_name);
168
169			/* load icons to visualize heading */
170			icons_load(ICON_WPT, "wpt_%s.%s", wpt_sym_icon_name);
171
172			/* load travelbug icon */
173			icons_load(ICON_TB, "%s.%s", tb_icon_name);
174
175			/* load misc icons */
176			icons_load(ICON_MISC, "%s.%s", misc_icon_name);
177
178			/* load file icons */
179			icons_load(ICON_FILE, "file_%s.%s", file_icon_name);
180			}
181
182			void icons_free(void) {
183			int i;
184			struct icon_data *icon = icons;
185
186			while(icon->count >= 0) {
187			if(icon->count) {
188			for(i=0;i<icon->count;i++)
189			if(icon->data[i])
190			gdk_pixbuf_unref(icon->data[i]);
191
192			free(icon->data);
193			}
194
195			icon++;
196			}
197			}
198
199			GdkPixbuf *icon_get(int type, int num) {
200			if(num < 0) return NULL;
201			if(num >= icons[type].count) return NULL;
202
203			return icons[type].data[num];
204			}
205
206			GtkWidget *icon_get_widget(int type, int num) {
207			GdkPixbuf *pbuf = icon_get(type, num);
208			if(!pbuf) return NULL;
209
210			return gtk_image_new_from_pixbuf(pbuf);
211			}
212
213			GdkPixbuf *icon_bearing(pos_t from, pos_t to) {
214	harbaum	47	if(isnan(from.lat) \|\| isnan(from.lon) \|\|
215			isnan(to.lat) \|\| isnan(to.lon))
216	harbaum	1	return icon_get(ICON_HEADING, 8);
217
218			int idx = (gpx_pos_get_bearing(from, to)+22.5)/45.0;
219
220			/* make sure we stay in icon bounds */
221			if(idx < 0) idx += 8;
222			if(idx > 7) idx -= 8;
223			return icon_get(ICON_HEADING, idx);
224			}
225