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1 | /* |
2 | * Copyright (C) 2008 Till Harbaum <till@harbaum.org>. |
3 | * |
4 | * This file is part of OSM2Go. |
5 | * |
6 | * OSM2Go 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 | * OSM2Go 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 OSM2Go. If not, see <http://www.gnu.org/licenses/>. |
18 | */ |
19 | |
20 | #include "appdata.h" |
21 | |
22 | #include <libxml/parser.h> |
23 | #include <libxml/tree.h> |
24 | |
25 | #if !defined(LIBXML_TREE_ENABLED) || !defined(LIBXML_OUTPUT_ENABLED) |
26 | #error "libxml doesn't support required tree or output" |
27 | #endif |
28 | |
29 | static void xml_get_prop_float(xmlNode *node, char *prop, float *value) { |
30 | char *str = (char*)xmlGetProp(node, BAD_CAST prop); |
31 | if(str) { |
32 | *value = strtod(str, NULL); |
33 | xmlFree(str); |
34 | } |
35 | } |
36 | |
37 | static int xml_get_prop_opaque(xmlNode *node, char *prop) { |
38 | float opaque = 100; |
39 | xml_get_prop_float(node, prop, &opaque); |
40 | if(opaque > 255) opaque = 255; |
41 | return(0xff & (int)(0.5 + opaque * 2.55)); |
42 | } |
43 | |
44 | static gboolean xml_prop_is(xmlNode *node, char *prop, char *str) { |
45 | char *prop_str = (char*)xmlGetProp(node, BAD_CAST prop); |
46 | if(!prop_str) return FALSE; |
47 | |
48 | gboolean match = (strcasecmp(prop_str, str) == 0); |
49 | xmlFree(prop_str); |
50 | return match; |
51 | } |
52 | |
53 | static style_t *parse_style(xmlDocPtr doc, xmlNode *a_node) { |
54 | xmlNode *cur_node = NULL, *sub_node = NULL; |
55 | style_t *style = g_new0(style_t, 1); |
56 | |
57 | style->name = (char*)xmlGetProp(a_node, BAD_CAST "name"); |
58 | |
59 | /* -------------- setup defaults -------------------- */ |
60 | /* (the defaults are pretty much the potlatch style) */ |
61 | style->background.color = 0xffffff; // white |
62 | |
63 | style->area.border_width = 2.0; |
64 | style->area.opaque = 0x60; // 37.5% |
65 | style->area.zoom_max = 0.1111; // zoom factor above which an area is visible & selectable |
66 | |
67 | style->node.radius = 4.0; |
68 | style->node.border_radius = 2.0; |
69 | style->node.color = 0x000000; // black |
70 | style->node.has_fill_color = TRUE; // is filled ... |
71 | style->node.fill_color = 0x008800; // ... in dark green |
72 | style->node.show_untagged = FALSE; |
73 | style->node.zoom_max = 0.4444; // zoom factor above which a node is visible & selectable |
74 | |
75 | style->track.width = 6.0; |
76 | style->track.color = 0x0000ff40; // blue |
77 | style->track.gps_color = 0x000080; |
78 | |
79 | style->way.width = 3.0; |
80 | style->way.color = 0x606060; // grey |
81 | style->way.zoom_max = 0.2222; // zoom above which it's visible & selectable |
82 | |
83 | style->highlight.width = 3.0; |
84 | style->highlight.color = 0xffff0080; |
85 | style->highlight.node_color = 0xff000080; |
86 | style->highlight.touch_color = 0x0000ff80; |
87 | style->highlight.arrow_color = 0x0000ff80; |
88 | style->highlight.arrow_limit = 4.0; |
89 | |
90 | style->frisket.mult = 3.0; |
91 | style->frisket.opaque = 0xff; |
92 | style->frisket.border.present = TRUE; |
93 | style->frisket.border.width = 6.0; |
94 | style->frisket.border.color = 0x00000099; |
95 | |
96 | style->icon.enable = FALSE; |
97 | style->icon.scale = 1.0; // icon size (multiplier) |
98 | style->icon.path_prefix = g_strdup("standard"); |
99 | |
100 | for (cur_node = a_node->children; cur_node; cur_node = cur_node->next) { |
101 | if (cur_node->type == XML_ELEMENT_NODE) { |
102 | if(strcasecmp((char*)cur_node->name, "elemstyles") == 0) { |
103 | style->elemstyles_filename = |
104 | (char*)xmlGetProp(cur_node, BAD_CAST "filename"); |
105 | |
106 | /* ---------- node ------------------------------------- */ |
107 | } else if(strcasecmp((char*)cur_node->name, "node") == 0) { |
108 | parse_color(cur_node, "color", &style->node.color); |
109 | style->node.has_fill_color = |
110 | parse_color(cur_node, "fill-color", &style->node.fill_color); |
111 | xml_get_prop_float(cur_node, "radius", &style->node.radius); |
112 | xml_get_prop_float(cur_node, "border-radius", |
113 | &style->node.border_radius); |
114 | float scale_max = 0; |
115 | xml_get_prop_float(cur_node, "scale-max", &scale_max); |
116 | if (scale_max > 0) |
117 | style->node.zoom_max = scaledn_to_zoom(scale_max); |
118 | else |
119 | style->node.zoom_max = 0; |
120 | |
121 | style->node.show_untagged = |
122 | xml_prop_is(cur_node, "show-untagged", "true"); |
123 | |
124 | /* ---------- icon ------------------------------------- */ |
125 | } else if(strcasecmp((char*)cur_node->name, "icon") == 0) { |
126 | xml_get_prop_float(cur_node, "scale", &style->icon.scale); |
127 | style->icon.path_prefix = (char*)xmlGetProp(cur_node, BAD_CAST "path-prefix"); |
128 | style->icon.enable = xml_prop_is(cur_node, "enable", "true"); |
129 | |
130 | /* ---------- way ------------------------------------- */ |
131 | } else if(strcasecmp((char*)cur_node->name, "way") == 0) { |
132 | parse_color(cur_node, "color", &style->way.color); |
133 | xml_get_prop_float(cur_node, "width", &style->way.width); |
134 | float scale_max = 0; |
135 | xml_get_prop_float(cur_node, "scale-max", &scale_max); |
136 | if (scale_max > 0) |
137 | style->way.zoom_max = scaledn_to_zoom(scale_max); |
138 | else |
139 | style->way.zoom_max = 0; |
140 | |
141 | /* ---------- frisket --------------------------------- */ |
142 | } else if(strcasecmp((char*)cur_node->name, "frisket") == 0) { |
143 | xml_get_prop_float(cur_node, "mult", &style->frisket.mult); |
144 | style->frisket.opaque = xml_get_prop_opaque(cur_node, "opaque"); |
145 | style->frisket.border.present = FALSE; |
146 | |
147 | for(sub_node = cur_node->children; sub_node; sub_node=sub_node->next) { |
148 | if(sub_node->type == XML_ELEMENT_NODE) { |
149 | if(strcasecmp((char*)sub_node->name, "border") == 0) { |
150 | style->frisket.border.present = TRUE; |
151 | xml_get_prop_float(sub_node, "width", |
152 | &style->frisket.border.width); |
153 | |
154 | gboolean color_set = |
155 | parse_color(sub_node, "color", &style->frisket.border.color); |
156 | int opaque = xml_get_prop_opaque(sub_node, "opaque"); |
157 | if(color_set) |
158 | style->frisket.border.color = |
159 | (style->frisket.border.color<<8) | opaque; |
160 | } |
161 | } |
162 | } |
163 | |
164 | /* ---------- highlight ------------------------------- */ |
165 | } else if(strcasecmp((char*)cur_node->name, "highlight") == 0) { |
166 | gboolean color_set = |
167 | parse_color(cur_node, "color", &style->highlight.color); |
168 | gboolean node_color_set = |
169 | parse_color(cur_node, "node-color", &style->highlight.node_color); |
170 | gboolean touch_color_set = |
171 | parse_color(cur_node, "touch-color", &style->highlight.touch_color); |
172 | gboolean arrow_color_set = |
173 | parse_color(cur_node, "arrow-color", &style->highlight.arrow_color); |
174 | xml_get_prop_float(cur_node, "width", &style->highlight.width); |
175 | xml_get_prop_float(cur_node, "arrow-limit", |
176 | &style->highlight.arrow_limit); |
177 | |
178 | int op = xml_get_prop_opaque(cur_node, "opaque"); |
179 | if(color_set) |
180 | style->highlight.color = (style->highlight.color << 8) | op; |
181 | if(node_color_set) |
182 | style->highlight.node_color =(style->highlight.node_color << 8)|op; |
183 | if(touch_color_set) |
184 | style->highlight.touch_color =(style->highlight.touch_color << 8)|op; |
185 | if(arrow_color_set) |
186 | style->highlight.arrow_color =(style->highlight.arrow_color << 8)|op; |
187 | |
188 | /* ---------- track ------------------------------------ */ |
189 | } else if(strcasecmp((char*)cur_node->name, "track") == 0) { |
190 | gboolean color_set = |
191 | parse_color(cur_node, "color", &style->track.color); |
192 | parse_color(cur_node, "gps-color", &style->track.gps_color); |
193 | xml_get_prop_float(cur_node, "width", &style->track.width); |
194 | |
195 | int opaque = xml_get_prop_opaque(cur_node, "opaque"); |
196 | if(color_set) style->track.color = (style->track.color<<8) | opaque; |
197 | |
198 | /* ---------- area ------------------------------------- */ |
199 | } else if(strcasecmp((char*)cur_node->name, "area") == 0) { |
200 | style->area.has_border_color = |
201 | parse_color(cur_node, "border-color", &style->area.border_color); |
202 | xml_get_prop_float(cur_node,"border-width", &style->area.border_width); |
203 | float scale_max = 0; |
204 | xml_get_prop_float(cur_node, "scale-max", &scale_max); |
205 | if (scale_max > 0) |
206 | style->area.zoom_max = scaledn_to_zoom(scale_max); |
207 | else |
208 | style->area.zoom_max = 0; |
209 | |
210 | style->area.opaque = xml_get_prop_opaque(cur_node, "opaque"); |
211 | |
212 | /* ---------- background ------------------------------- */ |
213 | } else if(strcasecmp((char*)cur_node->name, "background") == 0) { |
214 | parse_color(cur_node, "color", &style->background.color); |
215 | |
216 | } else |
217 | printf(" found unhandled style/%s\n", cur_node->name); |
218 | } |
219 | } |
220 | return style; |
221 | } |
222 | |
223 | static style_t *parse_doc(xmlDocPtr doc) { |
224 | /* Get the root element node */ |
225 | xmlNode *cur_node = NULL; |
226 | style_t *style = NULL; |
227 | |
228 | for(cur_node = xmlDocGetRootElement(doc); |
229 | cur_node; cur_node = cur_node->next) { |
230 | if (cur_node->type == XML_ELEMENT_NODE) { |
231 | if(strcasecmp((char*)cur_node->name, "style") == 0) { |
232 | if(!style) |
233 | style = parse_style(doc, cur_node); |
234 | } else |
235 | printf(" found unhandled %s\n", cur_node->name); |
236 | } |
237 | } |
238 | |
239 | xmlFreeDoc(doc); |
240 | xmlCleanupParser(); |
241 | return style; |
242 | } |
243 | |
244 | static style_t *style_parse(appdata_t *appdata, char *fullname) { |
245 | style_t *style = NULL; |
246 | |
247 | xmlDoc *doc = NULL; |
248 | |
249 | LIBXML_TEST_VERSION; |
250 | |
251 | /* parse the file and get the DOM */ |
252 | if((doc = xmlReadFile(fullname, NULL, 0)) == NULL) { |
253 | xmlErrorPtr errP = xmlGetLastError(); |
254 | errorf(GTK_WIDGET(appdata->window), |
255 | _("Style parsing failed:\n\n" |
256 | "XML error while parsing style file\n" |
257 | "%s"), errP->message); |
258 | |
259 | return NULL; |
260 | } else { |
261 | style = parse_doc(doc); |
262 | style->iconP = &appdata->icon; |
263 | } |
264 | |
265 | return style; |
266 | } |
267 | |
268 | style_t *style_load(appdata_t *appdata, char *name) { |
269 | printf("Trying to load style %s\n", name); |
270 | |
271 | char *filename = g_strdup_printf("%s.style", name); |
272 | char *fullname = find_file(filename); |
273 | g_free(filename); |
274 | |
275 | if (!fullname) { |
276 | printf("style %s not found, trying %s instead\n", name, DEFAULT_STYLE); |
277 | filename = g_strdup_printf("%s.style", DEFAULT_STYLE); |
278 | fullname = find_file(filename); |
279 | g_free(filename); |
280 | if (!fullname) { |
281 | printf(" style not found, failed to find fallback style too\n"); |
282 | return NULL; |
283 | } |
284 | } |
285 | |
286 | printf(" style filename: %s\n", fullname); |
287 | |
288 | style_t *style = style_parse(appdata, fullname); |
289 | g_free(fullname); |
290 | |
291 | printf(" elemstyle filename: %s\n", style->elemstyles_filename); |
292 | elemstyle_t *elemstyles = |
293 | josm_elemstyles_load(style->elemstyles_filename); |
294 | xmlFree(style->elemstyles_filename); |
295 | style->elemstyles = elemstyles; |
296 | |
297 | return style; |
298 | } |
299 | |
300 | void style_free(style_t *style) { |
301 | if(!style) return; |
302 | |
303 | printf("freeing style\n"); |
304 | |
305 | if(style->elemstyles) |
306 | josm_elemstyles_free(style->elemstyles); |
307 | |
308 | if(style->name) g_free(style->name); |
309 | |
310 | if (style->icon.path_prefix) g_free(style->icon.path_prefix); |
311 | |
312 | g_free(style); |
313 | } |
314 | |
315 | static char *style_basename(char *name) { |
316 | char *retval = name; |
317 | |
318 | if(strrchr(name, '/')) |
319 | retval = strrchr(name, '/') + 1; |
320 | |
321 | /* create a local copy */ |
322 | retval = g_strdup(retval); |
323 | |
324 | /* and cut off extension */ |
325 | if(strrchr(retval, '.')) |
326 | *strrchr(retval, '.') = 0; |
327 | |
328 | return retval; |
329 | } |
330 | |
331 | void style_select(GtkWidget *parent, appdata_t *appdata) { |
332 | file_chain_t *chain = file_scan("*.style"); |
333 | |
334 | printf("select style\n"); |
335 | |
336 | /* there must be at least one style, otherwise */ |
337 | /* the program wouldn't be running */ |
338 | g_assert(chain); |
339 | |
340 | /* ------------------ style dialog ---------------- */ |
341 | GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Select style"), |
342 | GTK_WINDOW(parent), GTK_DIALOG_MODAL, |
343 | GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, |
344 | GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, |
345 | NULL); |
346 | |
347 | gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT); |
348 | |
349 | GtkWidget *hbox = gtk_hbox_new(FALSE, 8); |
350 | gtk_box_pack_start_defaults(GTK_BOX(hbox), gtk_label_new(_("Style:"))); |
351 | |
352 | GtkWidget *cbox = NULL; |
353 | cbox = gtk_combo_box_new_text(); |
354 | |
355 | /* fill combo box with presets */ |
356 | int cnt = 0, match = -1; |
357 | file_chain_t *lchain = chain; |
358 | while(lchain) { |
359 | printf(" file: %s\n", lchain->name); |
360 | |
361 | style_t *style = style_parse(appdata, lchain->name); |
362 | printf(" name: %s\n", style->name); |
363 | gtk_combo_box_append_text(GTK_COMBO_BOX(cbox), style->name); |
364 | |
365 | char *basename = style_basename(lchain->name); |
366 | if(strcmp(basename, appdata->settings->style) == 0) match = cnt; |
367 | g_free(basename); |
368 | |
369 | xmlFree(style->elemstyles_filename); |
370 | style->elemstyles_filename = NULL; |
371 | style_free(style); |
372 | |
373 | lchain = lchain->next; |
374 | cnt++; |
375 | } |
376 | |
377 | if(match >= 0) |
378 | gtk_combo_box_set_active(GTK_COMBO_BOX(cbox), match); |
379 | |
380 | gtk_box_pack_start_defaults(GTK_BOX(hbox), cbox); |
381 | gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox); |
382 | |
383 | gtk_widget_show_all(dialog); |
384 | |
385 | if(GTK_RESPONSE_ACCEPT != gtk_dialog_run(GTK_DIALOG(dialog))) { |
386 | printf("user clicked cancel\n"); |
387 | gtk_widget_destroy(dialog); |
388 | return; |
389 | } |
390 | |
391 | char *ptr = gtk_combo_box_get_active_text(GTK_COMBO_BOX(cbox)); |
392 | printf("user clicked ok on %s\n", ptr); |
393 | |
394 | while(chain) { |
395 | file_chain_t *next = chain->next; |
396 | style_t *style = style_parse(appdata, chain->name); |
397 | |
398 | if(strcmp(style->name, ptr) == 0) { |
399 | if(appdata->settings->style) |
400 | g_free(appdata->settings->style); |
401 | |
402 | appdata->settings->style = style_basename(chain->name); |
403 | } |
404 | |
405 | xmlFree(style->elemstyles_filename); |
406 | style->elemstyles_filename = NULL; |
407 | style_free(style); |
408 | |
409 | g_free(chain); |
410 | chain = next; |
411 | } |
412 | |
413 | gtk_widget_destroy(dialog); |
414 | |
415 | map_clear(appdata, MAP_LAYER_OBJECTS_ONLY); |
416 | /* let gtk clean up first */ |
417 | while(gtk_events_pending()) { |
418 | putchar('.'); |
419 | gtk_main_iteration(); |
420 | } |
421 | |
422 | style_free(appdata->map->style); |
423 | appdata->map->style = style_load(appdata, appdata->settings->style); |
424 | |
425 | /* canvas background may have changed */ |
426 | g_object_set(G_OBJECT(appdata->map->canvas), "background-color-rgb", |
427 | appdata->map->style->background.color, NULL); |
428 | |
429 | map_paint(appdata); |
430 | } |