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