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Semi-transparent map icons
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+1 }, /* ICON_CACHE_TYPE */ |
28 | { NULL, CACHE_TYPE_MAX+1 }, /* ICON_CACHE_TYPE_SEMI */ |
29 | { NULL, CACHE_CONT_MAX+1 }, /* ICON_CACHE_SIZE */ |
30 | { NULL, 9 }, /* ICON_STARS */ |
31 | { NULL, LOG_TYPE_MAX+1 }, /* ICON_LOG */ |
32 | { NULL, 9 }, /* ICON_HEADING */ |
33 | { NULL, WPT_SYM_MAX+1 }, /* ICON_WPT */ |
34 | { NULL, 1 }, /* ICON_TB */ |
35 | { NULL, 9 }, /* ICON_MISC */ |
36 | { NULL, 3 }, /* ICON_FILE */ |
37 | { NULL, -1 } |
38 | }; |
39 | |
40 | /* ICON_CACHE_TYPE / ICON_CACHE_TYPE_SEMI */ |
41 | const char *cache_type_icon_name[] = { |
42 | "traditional", "multi", "mystery", "virtual", "webcam", "event", |
43 | "letterbox", "earthcache", "wherigo", "megaevent", "cito" |
44 | }; |
45 | |
46 | /* ICON_CACHE_SIZE */ |
47 | const char *cache_size_icon_name[] = { |
48 | "regular", "small", "micro", "other", "not_chosen", "large", |
49 | "virtual" |
50 | }; |
51 | |
52 | /* ICON_STARS */ |
53 | const char *stars_icon_name[] = { |
54 | "1", "1_5", "2", "2_5", "3", "3_5", "4", "4_5", "5" |
55 | }; |
56 | |
57 | /* ICON_LOG */ |
58 | const char *log_icon_name[] = { |
59 | "smile", "sad", "maint", "note", "big_smile", "enabled", |
60 | "greenlight", "rsvp", "attended", "camera", "disabled", |
61 | "needsmaint", "coord_update", |
62 | "traffic_cone", |
63 | "traffic_cone", /* LOG_TYPE_NEEDS_ARCHIVED */ |
64 | "traffic_cone", |
65 | }; |
66 | |
67 | /* ICON_HEADING */ |
68 | const char *heading_icon_name[] = { |
69 | "n", "ne", "e", "se", "s", "sw", "w", "nw", "none" |
70 | }; |
71 | |
72 | /* ICON_WPT */ |
73 | const char *wpt_sym_icon_name[] = { |
74 | "multistage", "parking", "final", "question", |
75 | "trailhead", "refpoint", |
76 | }; |
77 | |
78 | /* ICON_TB */ |
79 | const char *tb_icon_name[] = { |
80 | "tb_coin" |
81 | }; |
82 | |
83 | /* ICON_MISC */ |
84 | const char *misc_icon_name[] = { |
85 | "maemo-mapper-out", "override", "locked", "unlocked", "found", |
86 | "maemo-mapper-in", "note", "delete", "paypal" |
87 | }; |
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 type icons */ |
159 | icons_load(ICON_CACHE_TYPE_SEMI, "cache_type_%s_semi.%s", cache_type_icon_name); |
160 | |
161 | /* load cache container/size icons */ |
162 | icons_load(ICON_CACHE_SIZE, "cache_size_%s.%s", cache_size_icon_name); |
163 | |
164 | /* load cache difficulty/terrain icons */ |
165 | icons_load(ICON_STARS, "stars%s.%s", stars_icon_name); |
166 | |
167 | /* load cache difficulty/terrain icons */ |
168 | icons_load(ICON_LOG, "log_icon_%s.%s", log_icon_name); |
169 | |
170 | /* load icons to visualize heading */ |
171 | icons_load(ICON_HEADING, "heading_%s.%s", heading_icon_name); |
172 | |
173 | /* load icons to visualize heading */ |
174 | icons_load(ICON_WPT, "wpt_%s.%s", wpt_sym_icon_name); |
175 | |
176 | /* load travelbug icon */ |
177 | icons_load(ICON_TB, "%s.%s", tb_icon_name); |
178 | |
179 | /* load misc icons */ |
180 | icons_load(ICON_MISC, "%s.%s", misc_icon_name); |
181 | |
182 | /* load file icons */ |
183 | icons_load(ICON_FILE, "file_%s.%s", file_icon_name); |
184 | } |
185 | |
186 | void icons_free(void) { |
187 | int i; |
188 | struct icon_data *icon = icons; |
189 | |
190 | while(icon->count >= 0) { |
191 | if(icon->count) { |
192 | for(i=0;i<icon->count;i++) |
193 | if(icon->data[i]) |
194 | gdk_pixbuf_unref(icon->data[i]); |
195 | |
196 | free(icon->data); |
197 | } |
198 | |
199 | icon++; |
200 | } |
201 | } |
202 | |
203 | GdkPixbuf *icon_get(int type, int num) { |
204 | if(num < 0) return NULL; |
205 | if(num >= icons[type].count) return NULL; |
206 | |
207 | return icons[type].data[num]; |
208 | } |
209 | |
210 | GtkWidget *icon_get_widget(int type, int num) { |
211 | GdkPixbuf *pbuf = icon_get(type, num); |
212 | if(!pbuf) return NULL; |
213 | |
214 | return gtk_image_new_from_pixbuf(pbuf); |
215 | } |
216 | |
217 | GdkPixbuf *icon_bearing(pos_t from, pos_t to) { |
218 | if(isnan(from.lat) || isnan(from.lon) || |
219 | isnan(to.lat) || isnan(to.lon)) |
220 | return icon_get(ICON_HEADING, 8); |
221 | |
222 | int idx = (gpx_pos_get_bearing(from, to)+22.5)/45.0; |
223 | |
224 | /* make sure we stay in icon bounds */ |
225 | if(idx < 0) idx += 8; |
226 | if(idx > 7) idx -= 8; |
227 | return icon_get(ICON_HEADING, idx); |
228 | } |
229 |