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More code cleanups
1 | harbaum | 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 <gdk/gdkkeysyms.h> | ||
23 | |||
24 | |||
25 | #undef DESTROY_WAIT_FOR_GTK | ||
26 | |||
27 | static void map_statusbar(map_t *map, map_item_t *map_item) { | ||
28 | char *item_str = NULL; | ||
29 | item_id_t id = ID_ILLEGAL; | ||
30 | tag_t *tag = NULL; | ||
31 | char *str = NULL; | ||
32 | |||
33 | harbaum | 154 | switch(map_item->object.type) { |
34 | case NODE: | ||
35 | harbaum | 1 | item_str = "Node"; |
36 | harbaum | 154 | id = map_item->object.node->id; |
37 | tag = map_item->object.node->tag; | ||
38 | harbaum | 1 | break; |
39 | |||
40 | harbaum | 154 | case WAY: |
41 | harbaum | 1 | item_str = "Way"; |
42 | harbaum | 154 | id = map_item->object.way->id; |
43 | tag = map_item->object.way->tag; | ||
44 | harbaum | 1 | break; |
45 | |||
46 | harbaum | 154 | case RELATION: |
47 | harbaum | 153 | item_str = "Relation"; |
48 | harbaum | 154 | id = map_item->object.relation->id; |
49 | tag = map_item->object.relation->tag; | ||
50 | harbaum | 153 | break; |
51 | |||
52 | harbaum | 1 | default: |
53 | break; | ||
54 | } | ||
55 | |||
56 | gboolean collision = FALSE; | ||
57 | tag_t *tags = tag; | ||
58 | |||
59 | if(id == ID_ILLEGAL) | ||
60 | str = g_strdup_printf(_("Unknown item")); | ||
61 | else { | ||
62 | str = g_strdup_printf("%s #%ld", item_str, id); | ||
63 | |||
64 | /* add some tags ... */ | ||
65 | achadwick | 28 | /* |
66 | * XXX Should we just try to present only the name or the ref (or the | ||
67 | * alt_name, old_name, whatever) here? Hurling a load of tags in the | ||
68 | * user's face in some unpredictable, uninformative order isn't very | ||
69 | * friendly. | ||
70 | * | ||
71 | * Actually, a tag_short_desc() function would be useful in dialogs | ||
72 | * nd user messages too. | ||
73 | */ | ||
74 | harbaum | 1 | while(tag) { |
75 | if(!collision && info_tag_key_collision(tags, tag)) | ||
76 | collision = TRUE; | ||
77 | |||
78 | /* we don't have much space, so ignore created_by tag */ | ||
79 | if(!osm_is_creator_tag(tag)) { | ||
80 | char *old = str; | ||
81 | str = g_strdup_printf("%s, %s=%s", old, tag->key, tag->value); | ||
82 | g_free(old); | ||
83 | } | ||
84 | tag = tag->next; | ||
85 | } | ||
86 | } | ||
87 | |||
88 | statusbar_set(map->appdata, str, collision); | ||
89 | g_free(str); | ||
90 | } | ||
91 | |||
92 | void map_outside_error(appdata_t *appdata) { | ||
93 | errorf(GTK_WIDGET(appdata->window), | ||
94 | _("Items must not be placed outside the working area!")); | ||
95 | } | ||
96 | |||
97 | void map_item_chain_destroy(map_item_chain_t **chainP) { | ||
98 | if(!*chainP) { | ||
99 | printf("nothing to destroy!\n"); | ||
100 | return; | ||
101 | } | ||
102 | |||
103 | #ifdef DESTROY_WAIT_FOR_GTK | ||
104 | map_item_chain_t *chain = *chainP; | ||
105 | while(chain) { | ||
106 | map_item_chain_t *next = chain->next; | ||
107 | canvas_item_destroy(chain->map_item->item); | ||
108 | chain = next; | ||
109 | } | ||
110 | |||
111 | /* wait until gtks event handling has actually destroyed this item */ | ||
112 | printf("waiting for item destruction "); | ||
113 | while(gtk_events_pending() || *chainP) { | ||
114 | putchar('.'); | ||
115 | gtk_main_iteration(); | ||
116 | } | ||
117 | printf(" ok\n"); | ||
118 | |||
119 | /* the callback routine connected to this item should have been */ | ||
120 | /* called by now and it has set the chain to NULL */ | ||
121 | |||
122 | #else | ||
123 | map_item_chain_t *chain = *chainP; | ||
124 | while(chain) { | ||
125 | map_item_chain_t *next = chain->next; | ||
126 | canvas_item_destroy(chain->map_item->item); | ||
127 | |||
128 | g_free(chain); | ||
129 | chain = next; | ||
130 | } | ||
131 | *chainP = NULL; | ||
132 | #endif | ||
133 | } | ||
134 | |||
135 | static void map_node_select(appdata_t *appdata, node_t *node) { | ||
136 | map_t *map = appdata->map; | ||
137 | map_item_t *map_item = &map->selected; | ||
138 | |||
139 | g_assert(!map->highlight); | ||
140 | |||
141 | harbaum | 154 | map_item->object.type = NODE; |
142 | map_item->object.node = node; | ||
143 | harbaum | 1 | map_item->highlight = FALSE; |
144 | |||
145 | /* node may not have any visible representation at all */ | ||
146 | if(node->map_item_chain) | ||
147 | map_item->item = node->map_item_chain->map_item->item; | ||
148 | else | ||
149 | map_item->item = NULL; | ||
150 | |||
151 | map_statusbar(map, map_item); | ||
152 | icon_bar_map_item_selected(appdata, map_item, TRUE); | ||
153 | |||
154 | /* highlight node */ | ||
155 | harbaum | 154 | gint x = map_item->object.node->lpos.x, y = map_item->object.node->lpos.y; |
156 | harbaum | 1 | |
157 | /* create a copy of this map item and mark it as being a highlight */ | ||
158 | map_item_t *new_map_item = g_new0(map_item_t, 1); | ||
159 | memcpy(new_map_item, map_item, sizeof(map_item_t)); | ||
160 | new_map_item->highlight = TRUE; | ||
161 | |||
162 | float radius = map->style->highlight.width + map->style->node.radius; | ||
163 | if(!node->ways) radius += map->style->node.border_radius; | ||
164 | harbaum | 14 | if(node->icon_buf && map->style->icon.enable && |
165 | !appdata->settings->no_icons) { | ||
166 | harbaum | 154 | gint w = gdk_pixbuf_get_width(map_item->object.node->icon_buf); |
167 | gint h = gdk_pixbuf_get_height(map_item->object.node->icon_buf); | ||
168 | harbaum | 1 | /* icons are technically square, so a radius slightly bigger */ |
169 | /* than sqrt(2)*MAX(w,h) should fit nicely */ | ||
170 | radius = 0.75 * map->style->icon.scale * ((w>h)?w:h); | ||
171 | } | ||
172 | |||
173 | map_hl_circle_new(map, CANVAS_GROUP_NODES_HL, new_map_item, | ||
174 | x, y, radius, map->style->highlight.color); | ||
175 | harbaum | 103 | |
176 | harbaum | 1 | if(!map_item->item) { |
177 | /* and draw a fake node */ | ||
178 | new_map_item = g_new0(map_item_t, 1); | ||
179 | memcpy(new_map_item, map_item, sizeof(map_item_t)); | ||
180 | new_map_item->highlight = TRUE; | ||
181 | harbaum | 151 | map_hl_circle_new(map, CANVAS_GROUP_NODES_IHL, new_map_item, |
182 | harbaum | 1 | x, y, map->style->node.radius, |
183 | map->style->highlight.node_color); | ||
184 | } | ||
185 | } | ||
186 | |||
187 | void map_way_select(appdata_t *appdata, way_t *way) { | ||
188 | map_t *map = appdata->map; | ||
189 | map_item_t *map_item = &map->selected; | ||
190 | |||
191 | g_assert(!map->highlight); | ||
192 | |||
193 | harbaum | 154 | map_item->object.type = WAY; |
194 | map_item->object.way = way; | ||
195 | harbaum | 1 | map_item->highlight = FALSE; |
196 | map_item->item = way->map_item_chain->map_item->item; | ||
197 | |||
198 | map_statusbar(map, map_item); | ||
199 | icon_bar_map_item_selected(appdata, map_item, TRUE); | ||
200 | gtk_widget_set_sensitive(appdata->menu_item_map_hide_sel, TRUE); | ||
201 | |||
202 | harbaum | 154 | gint arrow_width = (map_item->object.way->draw.flags & OSM_DRAW_FLAG_BG)? |
203 | map->style->highlight.width + map_item->object.way->draw.bg.width/2: | ||
204 | map->style->highlight.width + map_item->object.way->draw.width/2; | ||
205 | harbaum | 1 | |
206 | harbaum | 154 | node_chain_t *node_chain = map_item->object.way->node_chain; |
207 | harbaum | 1 | node_t *last = NULL; |
208 | while(node_chain) { | ||
209 | map_item_t item; | ||
210 | harbaum | 154 | item.object.type = NODE; |
211 | item.object.node = node_chain->node; | ||
212 | harbaum | 1 | |
213 | /* draw an arrow between every two nodes */ | ||
214 | if(last) { | ||
215 | /* create a new map item for every arrow */ | ||
216 | map_item_t *new_map_item = g_new0(map_item_t, 1); | ||
217 | harbaum | 154 | new_map_item->object.type = WAY; |
218 | new_map_item->object.way = way; | ||
219 | harbaum | 1 | new_map_item->highlight = TRUE; |
220 | |||
221 | struct { float x, y;} center, diff; | ||
222 | center.x = (last->lpos.x + node_chain->node->lpos.x)/2; | ||
223 | center.y = (last->lpos.y + node_chain->node->lpos.y)/2; | ||
224 | diff.x = node_chain->node->lpos.x - last->lpos.x; | ||
225 | diff.y = node_chain->node->lpos.y - last->lpos.y; | ||
226 | |||
227 | harbaum | 15 | /* only draw arrow if there's sufficient space */ |
228 | /* TODO: what if there's not enough space anywhere? */ | ||
229 | harbaum | 1 | float len = sqrt(pow(diff.x, 2)+pow(diff.y, 2)); |
230 | if(len > map->style->highlight.arrow_limit*arrow_width) { | ||
231 | len /= arrow_width; | ||
232 | diff.x = diff.x / len; | ||
233 | diff.y = diff.y / len; | ||
234 | |||
235 | canvas_points_t *points = canvas_points_new(4); | ||
236 | points->coords[2*0+0] = points->coords[2*3+0] = center.x + diff.x; | ||
237 | points->coords[2*0+1] = points->coords[2*3+1] = center.y + diff.y; | ||
238 | points->coords[2*1+0] = center.x + diff.y - diff.x; | ||
239 | points->coords[2*1+1] = center.y - diff.x - diff.y; | ||
240 | points->coords[2*2+0] = center.x - diff.y - diff.x; | ||
241 | points->coords[2*2+1] = center.y + diff.x - diff.y; | ||
242 | |||
243 | harbaum | 105 | map_hl_polygon_new(map, CANVAS_GROUP_WAYS_DIR, new_map_item, |
244 | harbaum | 1 | points, map->style->highlight.arrow_color); |
245 | |||
246 | canvas_points_free(points); | ||
247 | } | ||
248 | } | ||
249 | |||
250 | if(!map_hl_item_is_highlighted(map, &item)) { | ||
251 | |||
252 | /* create a new map item for every node */ | ||
253 | map_item_t *new_map_item = g_new0(map_item_t, 1); | ||
254 | harbaum | 154 | new_map_item->object.type = NODE; |
255 | new_map_item->object.node = node_chain->node; | ||
256 | harbaum | 1 | new_map_item->highlight = TRUE; |
257 | |||
258 | gint x = node_chain->node->lpos.x; | ||
259 | gint y = node_chain->node->lpos.y; | ||
260 | |||
261 | harbaum | 151 | map_hl_circle_new(map, CANVAS_GROUP_NODES_IHL, new_map_item, |
262 | harbaum | 1 | x, y, map->style->node.radius, |
263 | map->style->highlight.node_color); | ||
264 | } | ||
265 | |||
266 | last = node_chain->node; | ||
267 | node_chain = node_chain->next; | ||
268 | } | ||
269 | |||
270 | /* a way needs at least 2 points to be drawn */ | ||
271 | guint nodes = osm_way_number_of_nodes(way); | ||
272 | if(nodes > 1) { | ||
273 | |||
274 | /* allocate space for nodes */ | ||
275 | canvas_points_t *points = canvas_points_new(nodes); | ||
276 | |||
277 | int node = 0; | ||
278 | harbaum | 154 | node_chain = map_item->object.way->node_chain; |
279 | harbaum | 1 | while(node_chain) { |
280 | canvas_point_set_pos(points, node++, &node_chain->node->lpos); | ||
281 | node_chain = node_chain->next; | ||
282 | } | ||
283 | |||
284 | /* create a copy of this map item and mark it as being a highlight */ | ||
285 | map_item_t *new_map_item = g_new0(map_item_t, 1); | ||
286 | memcpy(new_map_item, map_item, sizeof(map_item_t)); | ||
287 | new_map_item->highlight = TRUE; | ||
288 | |||
289 | map_hl_polyline_new(map, CANVAS_GROUP_WAYS_HL, new_map_item, points, | ||
290 | harbaum | 154 | (map_item->object.way->draw.flags & OSM_DRAW_FLAG_BG)? |
291 | 2*map->style->highlight.width + map_item->object.way->draw.bg.width: | ||
292 | 2*map->style->highlight.width + map_item->object.way->draw.width, | ||
293 | harbaum | 1 | map->style->highlight.color); |
294 | |||
295 | canvas_points_free(points); | ||
296 | } | ||
297 | } | ||
298 | |||
299 | harbaum | 153 | void map_relation_select(appdata_t *appdata, relation_t *relation) { |
300 | map_t *map = appdata->map; | ||
301 | |||
302 | printf("highlighting relation %ld\n", relation->id); | ||
303 | |||
304 | g_assert(!map->highlight); | ||
305 | map_highlight_t **hl = &map->highlight; | ||
306 | |||
307 | map_item_t *map_item = &map->selected; | ||
308 | harbaum | 154 | map_item->object.type = RELATION; |
309 | map_item->object.relation = relation; | ||
310 | harbaum | 153 | map_item->highlight = FALSE; |
311 | map_item->item = NULL; | ||
312 | |||
313 | map_statusbar(map, map_item); | ||
314 | icon_bar_map_item_selected(appdata, map_item, TRUE); | ||
315 | |||
316 | /* process all members */ | ||
317 | member_t *member = relation->member; | ||
318 | while(member) { | ||
319 | canvas_item_t *item = NULL; | ||
320 | |||
321 | harbaum | 155 | switch(member->object.type) { |
322 | harbaum | 153 | |
323 | case NODE: { | ||
324 | harbaum | 155 | node_t *node = member->object.node; |
325 | harbaum | 153 | printf(" -> node %ld\n", node->id); |
326 | |||
327 | item = canvas_circle_new(map->canvas, CANVAS_GROUP_NODES_HL, | ||
328 | node->lpos.x, node->lpos.y, | ||
329 | map->style->highlight.width + map->style->node.radius, | ||
330 | 0, map->style->highlight.color, NO_COLOR); | ||
331 | } break; | ||
332 | |||
333 | case WAY: { | ||
334 | harbaum | 155 | way_t *way = member->object.way; |
335 | harbaum | 153 | /* a way needs at least 2 points to be drawn */ |
336 | guint nodes = osm_way_number_of_nodes(way); | ||
337 | if(nodes > 1) { | ||
338 | |||
339 | /* allocate space for nodes */ | ||
340 | canvas_points_t *points = canvas_points_new(nodes); | ||
341 | |||
342 | int node = 0; | ||
343 | node_chain_t *node_chain = way->node_chain; | ||
344 | while(node_chain) { | ||
345 | canvas_point_set_pos(points, node++, &node_chain->node->lpos); | ||
346 | node_chain = node_chain->next; | ||
347 | } | ||
348 | |||
349 | if(way->draw.flags & OSM_DRAW_FLAG_AREA) | ||
350 | item = canvas_polygon_new(map->canvas, CANVAS_GROUP_WAYS_HL, points, 0, 0, | ||
351 | map->style->highlight.color); | ||
352 | else | ||
353 | item = canvas_polyline_new(map->canvas, CANVAS_GROUP_WAYS_HL, points, | ||
354 | (way->draw.flags & OSM_DRAW_FLAG_BG)? | ||
355 | 2*map->style->highlight.width + way->draw.bg.width: | ||
356 | 2*map->style->highlight.width + way->draw.width, | ||
357 | map->style->highlight.color); | ||
358 | |||
359 | canvas_points_free(points); | ||
360 | } } break; | ||
361 | |||
362 | default: | ||
363 | break; | ||
364 | } | ||
365 | |||
366 | /* attach item to item chain */ | ||
367 | if(item) { | ||
368 | *hl = g_new0(map_highlight_t, 1); | ||
369 | (*hl)->item = item; | ||
370 | hl = &(*hl)->next; | ||
371 | } | ||
372 | |||
373 | member = member->next; | ||
374 | } | ||
375 | } | ||
376 | |||
377 | harbaum | 154 | static void map_object_select(appdata_t *appdata, object_t *object) { |
378 | switch(object->type) { | ||
379 | case NODE: | ||
380 | map_node_select(appdata, object->node); | ||
381 | harbaum | 1 | break; |
382 | harbaum | 154 | case WAY: |
383 | map_way_select(appdata, object->way); | ||
384 | harbaum | 1 | break; |
385 | harbaum | 154 | case RELATION: |
386 | map_relation_select(appdata, object->relation); | ||
387 | break; | ||
388 | harbaum | 1 | default: |
389 | harbaum | 154 | g_assert((object->type == NODE)||(object->type == RELATION)|| |
390 | (object->type == WAY)); | ||
391 | harbaum | 1 | break; |
392 | } | ||
393 | } | ||
394 | |||
395 | void map_item_deselect(appdata_t *appdata) { | ||
396 | |||
397 | /* save tags for "last" function in info dialog */ | ||
398 | harbaum | 154 | if(appdata->map->selected.object.type == NODE) { |
399 | harbaum | 1 | if(appdata->map->last_node_tags) |
400 | osm_tags_free(appdata->map->last_node_tags); | ||
401 | |||
402 | appdata->map->last_node_tags = | ||
403 | harbaum | 154 | osm_tags_copy(appdata->map->selected.object.node->tag, FALSE); |
404 | } else if(appdata->map->selected.object.type == WAY) { | ||
405 | harbaum | 1 | if(appdata->map->last_way_tags) |
406 | osm_tags_free(appdata->map->last_way_tags); | ||
407 | |||
408 | appdata->map->last_way_tags = | ||
409 | harbaum | 154 | osm_tags_copy(appdata->map->selected.object.way->tag, FALSE); |
410 | harbaum | 1 | } |
411 | |||
412 | /* remove statusbar message */ | ||
413 | statusbar_set(appdata, NULL, FALSE); | ||
414 | |||
415 | /* disable/enable icons in icon bar */ | ||
416 | icon_bar_map_item_selected(appdata, NULL, FALSE); | ||
417 | gtk_widget_set_sensitive(appdata->menu_item_map_hide_sel, FALSE); | ||
418 | |||
419 | /* remove highlight */ | ||
420 | map_hl_remove(appdata); | ||
421 | |||
422 | /* forget about selection */ | ||
423 | harbaum | 154 | appdata->map->selected.object.type = ILLEGAL; |
424 | harbaum | 1 | } |
425 | |||
426 | /* called whenever a map item is to be destroyed */ | ||
427 | static gint map_item_destroy_event(GtkWidget *widget, gpointer data) { | ||
428 | map_item_t *map_item = (map_item_t*)data; | ||
429 | |||
430 | // printf("destroying map_item @ %p\n", map_item); | ||
431 | |||
432 | #ifdef DESTROY_WAIT_FOR_GTK | ||
433 | /* remove item from nodes/ways map_item_chain */ | ||
434 | map_item_chain_t **chain = NULL; | ||
435 | harbaum | 154 | if(map_item->object.type == NODE) |
436 | chain = &map_item->object.node->map_item_chain; | ||
437 | else if(map_item->object.type == WAY) | ||
438 | chain = &map_item->object.way->map_item_chain; | ||
439 | harbaum | 1 | |
440 | /* there must be a chain with content, otherwise things are broken */ | ||
441 | g_assert(chain); | ||
442 | g_assert(*chain); | ||
443 | |||
444 | /* search current map_item, ... */ | ||
445 | while(*chain && (*chain)->map_item != map_item) | ||
446 | chain = &(*chain)->next; | ||
447 | |||
448 | g_assert(*chain); | ||
449 | |||
450 | /* ... remove it from chain and free it */ | ||
451 | map_item_chain_t *tmp = *chain; | ||
452 | *chain = (*chain)->next; | ||
453 | |||
454 | g_free(tmp); | ||
455 | #endif | ||
456 | |||
457 | g_free(map_item); | ||
458 | return FALSE; | ||
459 | } | ||
460 | |||
461 | static canvas_item_t *map_node_new(map_t *map, node_t *node, gint radius, | ||
462 | gint width, canvas_color_t fill, canvas_color_t border) { | ||
463 | |||
464 | map_item_t *map_item = g_new0(map_item_t, 1); | ||
465 | harbaum | 154 | map_item->object.type = NODE; |
466 | map_item->object.node = node; | ||
467 | harbaum | 1 | |
468 | harbaum | 14 | if(!node->icon_buf || !map->style->icon.enable || |
469 | harbaum | 64 | map->appdata->settings->no_icons) |
470 | harbaum | 103 | map_item->item = canvas_circle_new(map->canvas, CANVAS_GROUP_NODES, |
471 | harbaum | 1 | node->lpos.x, node->lpos.y, radius, width, fill, border); |
472 | else | ||
473 | harbaum | 103 | map_item->item = canvas_image_new(map->canvas, CANVAS_GROUP_NODES, |
474 | harbaum | 1 | node->icon_buf, |
475 | node->lpos.x - map->style->icon.scale/2 * | ||
476 | gdk_pixbuf_get_width(node->icon_buf), | ||
477 | node->lpos.y - map->style->icon.scale/2 * | ||
478 | gdk_pixbuf_get_height(node->icon_buf), | ||
479 | map->style->icon.scale,map->style->icon.scale); | ||
480 | |||
481 | canvas_item_set_zoom_max(map_item->item, node->zoom_max); | ||
482 | |||
483 | /* attach map_item to nodes map_item_chain */ | ||
484 | map_item_chain_t **chain = &node->map_item_chain; | ||
485 | while(*chain) chain = &(*chain)->next; | ||
486 | *chain = g_new0(map_item_chain_t, 1); | ||
487 | (*chain)->map_item = map_item; | ||
488 | |||
489 | canvas_item_set_user_data(map_item->item, map_item); | ||
490 | |||
491 | canvas_item_destroy_connect(map_item->item, | ||
492 | G_CALLBACK(map_item_destroy_event), map_item); | ||
493 | |||
494 | return map_item->item; | ||
495 | } | ||
496 | |||
497 | /* in the rare case that a way consists of only one node, it is */ | ||
498 | /* drawn as a circle. This e.g. happens when drawing a new way */ | ||
499 | static canvas_item_t *map_way_single_new(map_t *map, way_t *way, gint radius, | ||
500 | gint width, canvas_color_t fill, canvas_color_t border) { | ||
501 | |||
502 | map_item_t *map_item = g_new0(map_item_t, 1); | ||
503 | harbaum | 154 | map_item->object.type = WAY; |
504 | map_item->object.way = way; | ||
505 | harbaum | 103 | map_item->item = canvas_circle_new(map->canvas, CANVAS_GROUP_WAYS, |
506 | harbaum | 1 | way->node_chain->node->lpos.x, way->node_chain->node->lpos.y, |
507 | radius, width, fill, border); | ||
508 | |||
509 | // TODO: decide: do we need canvas_item_set_zoom_max() here too? | ||
510 | |||
511 | /* attach map_item to nodes map_item_chain */ | ||
512 | map_item_chain_t **chain = &way->map_item_chain; | ||
513 | while(*chain) chain = &(*chain)->next; | ||
514 | *chain = g_new0(map_item_chain_t, 1); | ||
515 | (*chain)->map_item = map_item; | ||
516 | |||
517 | canvas_item_set_user_data(map_item->item, map_item); | ||
518 | |||
519 | canvas_item_destroy_connect(map_item->item, | ||
520 | G_CALLBACK(map_item_destroy_event), map_item); | ||
521 | |||
522 | return map_item->item; | ||
523 | } | ||
524 | |||
525 | static canvas_item_t *map_way_new(map_t *map, canvas_group_t group, | ||
526 | way_t *way, canvas_points_t *points, gint width, | ||
527 | canvas_color_t color, canvas_color_t fill_color) { | ||
528 | map_item_t *map_item = g_new0(map_item_t, 1); | ||
529 | harbaum | 154 | map_item->object.type = WAY; |
530 | map_item->object.way = way; | ||
531 | harbaum | 1 | |
532 | if(way->draw.flags & OSM_DRAW_FLAG_AREA) { | ||
533 | harbaum | 22 | if(map->style->area.color & 0xff) |
534 | harbaum | 103 | map_item->item = canvas_polygon_new(map->canvas, group, points, |
535 | harbaum | 1 | width, color, fill_color); |
536 | else | ||
537 | harbaum | 103 | map_item->item = canvas_polyline_new(map->canvas, group, points, |
538 | harbaum | 1 | width, color); |
539 | } else { | ||
540 | harbaum | 103 | map_item->item = canvas_polyline_new(map->canvas, group, points, width, color); |
541 | harbaum | 1 | } |
542 | |||
543 | canvas_item_set_zoom_max(map_item->item, way->draw.zoom_max); | ||
544 | |||
545 | harbaum | 108 | /* a ways outline itself is never dashed */ |
546 | achadwick | 13 | if (group != CANVAS_GROUP_WAYS_OL) |
547 | if (way->draw.dashed) | ||
548 | achadwick | 46 | canvas_item_set_dashed(map_item->item, width, way->draw.dash_length); |
549 | achadwick | 13 | |
550 | harbaum | 1 | /* attach map_item to ways map_item_chain */ |
551 | map_item_chain_t **chain = &way->map_item_chain; | ||
552 | while(*chain) chain = &(*chain)->next; | ||
553 | *chain = g_new0(map_item_chain_t, 1); | ||
554 | (*chain)->map_item = map_item; | ||
555 | |||
556 | canvas_item_set_user_data(map_item->item, map_item); | ||
557 | |||
558 | canvas_item_destroy_connect(map_item->item, | ||
559 | G_CALLBACK(map_item_destroy_event), map_item); | ||
560 | |||
561 | return map_item->item; | ||
562 | } | ||
563 | |||
564 | void map_show_node(map_t *map, node_t *node) { | ||
565 | map_node_new(map, node, map->style->node.radius, 0, | ||
566 | harbaum | 22 | map->style->node.color, 0); |
567 | harbaum | 1 | } |
568 | |||
569 | void map_way_draw(map_t *map, way_t *way) { | ||
570 | |||
571 | /* don't draw a way that's not there anymore */ | ||
572 | if(way->flags & (OSM_FLAG_DELETED | OSM_FLAG_HIDDEN)) | ||
573 | return; | ||
574 | |||
575 | /* allocate space for nodes */ | ||
576 | /* a way needs at least 2 points to be drawn */ | ||
577 | guint nodes = osm_way_number_of_nodes(way); | ||
578 | if(nodes == 1) { | ||
579 | /* draw a single dot where this single node is */ | ||
580 | map_way_single_new(map, way, map->style->node.radius, 0, | ||
581 | harbaum | 22 | map->style->node.color, 0); |
582 | harbaum | 1 | } else { |
583 | canvas_points_t *points = canvas_points_new(nodes); | ||
584 | |||
585 | int node = 0; | ||
586 | node_chain_t *node_chain = way->node_chain; | ||
587 | while(node_chain) { | ||
588 | canvas_point_set_pos(points, node++, &node_chain->node->lpos); | ||
589 | node_chain = node_chain->next; | ||
590 | } | ||
591 | |||
592 | /* draw way */ | ||
593 | if(way->draw.flags & OSM_DRAW_FLAG_AREA) { | ||
594 | map_way_new(map, CANVAS_GROUP_POLYGONS, way, points, | ||
595 | way->draw.width, way->draw.color, way->draw.area.color); | ||
596 | } else { | ||
597 | |||
598 | harbaum | 108 | if(way->draw.flags & OSM_DRAW_FLAG_BG) { |
599 | map_way_new(map, CANVAS_GROUP_WAYS_INT, way, points, | ||
600 | way->draw.width, way->draw.color, NO_COLOR); | ||
601 | |||
602 | harbaum | 1 | map_way_new(map, CANVAS_GROUP_WAYS_OL, way, points, |
603 | way->draw.bg.width, way->draw.bg.color, NO_COLOR); | ||
604 | harbaum | 108 | |
605 | } else | ||
606 | map_way_new(map, CANVAS_GROUP_WAYS, way, points, | ||
607 | way->draw.width, way->draw.color, NO_COLOR); | ||
608 | harbaum | 1 | } |
609 | canvas_points_free(points); | ||
610 | } | ||
611 | } | ||
612 | |||
613 | void map_node_draw(map_t *map, node_t *node) { | ||
614 | /* don't draw a node that's not there anymore */ | ||
615 | if(node->flags & OSM_FLAG_DELETED) | ||
616 | return; | ||
617 | |||
618 | if(!node->ways) | ||
619 | map_node_new(map, node, | ||
620 | map->style->node.radius, | ||
621 | map->style->node.border_radius, | ||
622 | harbaum | 22 | map->style->node.fill_color, |
623 | map->style->node.color); | ||
624 | harbaum | 1 | |
625 | else if(map->style->node.show_untagged || osm_node_has_tag(node)) | ||
626 | map_node_new(map, node, | ||
627 | map->style->node.radius, 0, | ||
628 | harbaum | 22 | map->style->node.color, 0); |
629 | harbaum | 1 | } |
630 | |||
631 | static void map_item_draw(map_t *map, map_item_t *map_item) { | ||
632 | harbaum | 154 | switch(map_item->object.type) { |
633 | case NODE: | ||
634 | map_node_draw(map, map_item->object.node); | ||
635 | harbaum | 1 | break; |
636 | harbaum | 154 | case WAY: |
637 | map_way_draw(map, map_item->object.way); | ||
638 | harbaum | 1 | break; |
639 | default: | ||
640 | harbaum | 154 | g_assert((map_item->object.type == NODE) || |
641 | (map_item->object.type == WAY)); | ||
642 | harbaum | 1 | } |
643 | } | ||
644 | |||
645 | static void map_item_remove(map_t *map, map_item_t *map_item) { | ||
646 | map_item_chain_t **chainP = NULL; | ||
647 | |||
648 | harbaum | 154 | switch(map_item->object.type) { |
649 | case NODE: | ||
650 | chainP = &map_item->object.node->map_item_chain; | ||
651 | harbaum | 1 | break; |
652 | harbaum | 154 | case WAY: |
653 | chainP = &map_item->object.way->map_item_chain; | ||
654 | harbaum | 1 | break; |
655 | default: | ||
656 | harbaum | 154 | g_assert((map_item->object.type == NODE) || |
657 | (map_item->object.type == WAY)); | ||
658 | harbaum | 1 | } |
659 | |||
660 | map_item_chain_destroy(chainP); | ||
661 | } | ||
662 | |||
663 | static void map_item_init(style_t *style, map_item_t *map_item) { | ||
664 | harbaum | 154 | switch (map_item->object.type){ |
665 | case WAY: | ||
666 | josm_elemstyles_colorize_way(style, map_item->object.way); | ||
667 | harbaum | 1 | break; |
668 | harbaum | 154 | case NODE: |
669 | josm_elemstyles_colorize_node(style, map_item->object.node); | ||
670 | harbaum | 1 | break; |
671 | default: | ||
672 | harbaum | 154 | g_assert((map_item->object.type == NODE) || |
673 | (map_item->object.type == WAY)); | ||
674 | harbaum | 1 | } |
675 | } | ||
676 | |||
677 | void map_item_redraw(appdata_t *appdata, map_item_t *map_item) { | ||
678 | map_item_t item = *map_item; | ||
679 | |||
680 | /* check if the item to be redrawn is the selected one */ | ||
681 | gboolean is_selected = FALSE; | ||
682 | harbaum | 154 | if(map_item->object.ptr == appdata->map->selected.object.ptr) { |
683 | harbaum | 1 | map_item_deselect(appdata); |
684 | is_selected = TRUE; | ||
685 | } | ||
686 | |||
687 | map_item_remove(appdata->map, &item); | ||
688 | map_item_init(appdata->map->style, &item); | ||
689 | map_item_draw(appdata->map, &item); | ||
690 | |||
691 | /* restore selection if there was one */ | ||
692 | if(is_selected) | ||
693 | harbaum | 154 | map_object_select(appdata, &item.object); |
694 | harbaum | 1 | } |
695 | |||
696 | static void map_frisket_rectangle(canvas_points_t *points, | ||
697 | gint x0, gint x1, gint y0, gint y1) { | ||
698 | points->coords[2*0+0] = points->coords[2*3+0] = points->coords[2*4+0] = x0; | ||
699 | points->coords[2*1+0] = points->coords[2*2+0] = x1; | ||
700 | points->coords[2*0+1] = points->coords[2*1+1] = points->coords[2*4+1] = y0; | ||
701 | points->coords[2*2+1] = points->coords[2*3+1] = y1; | ||
702 | } | ||
703 | |||
704 | /* Draw the frisket area which masks off areas it'd be unsafe to edit, | ||
705 | * plus its inner edge marker line */ | ||
706 | void map_frisket_draw(map_t *map, bounds_t *bounds) { | ||
707 | canvas_points_t *points = canvas_points_new(5); | ||
708 | |||
709 | /* don't draw frisket at all if it's completely transparent */ | ||
710 | harbaum | 22 | if(map->style->frisket.color & 0xff) { |
711 | elemstyle_color_t color = map->style->frisket.color; | ||
712 | harbaum | 1 | |
713 | float mult = map->style->frisket.mult; | ||
714 | |||
715 | /* top rectangle */ | ||
716 | map_frisket_rectangle(points, mult*bounds->min.x, mult*bounds->max.x, | ||
717 | mult*bounds->min.y, bounds->min.y); | ||
718 | harbaum | 103 | canvas_polygon_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
719 | 1, NO_COLOR, color); | ||
720 | harbaum | 1 | |
721 | /* bottom rectangle */ | ||
722 | map_frisket_rectangle(points, mult*bounds->min.x, mult*bounds->max.x, | ||
723 | bounds->max.y, mult*bounds->max.y); | ||
724 | harbaum | 103 | canvas_polygon_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
725 | 1, NO_COLOR, color); | ||
726 | harbaum | 1 | |
727 | /* left rectangle */ | ||
728 | map_frisket_rectangle(points, mult*bounds->min.x, bounds->min.x, | ||
729 | mult*bounds->min.y, mult*bounds->max.y); | ||
730 | harbaum | 103 | canvas_polygon_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
731 | 1, NO_COLOR, color); | ||
732 | harbaum | 1 | |
733 | /* right rectangle */ | ||
734 | map_frisket_rectangle(points, bounds->max.x, mult*bounds->max.x, | ||
735 | mult*bounds->min.y, mult*bounds->max.y); | ||
736 | harbaum | 103 | canvas_polygon_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
737 | 1, NO_COLOR, color); | ||
738 | harbaum | 1 | |
739 | } | ||
740 | |||
741 | if(map->style->frisket.border.present) { | ||
742 | // Edge marker line | ||
743 | gint ew2 = map->style->frisket.border.width/2; | ||
744 | map_frisket_rectangle(points, | ||
745 | bounds->min.x-ew2, bounds->max.x+ew2, | ||
746 | bounds->min.y-ew2, bounds->max.y+ew2); | ||
747 | |||
748 | harbaum | 103 | canvas_polyline_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
749 | harbaum | 1 | map->style->frisket.border.width, |
750 | map->style->frisket.border.color); | ||
751 | |||
752 | } | ||
753 | canvas_points_free(points); | ||
754 | } | ||
755 | |||
756 | static void map_draw(map_t *map, osm_t *osm) { | ||
757 | g_assert(map->canvas); | ||
758 | |||
759 | printf("drawing ways ...\n"); | ||
760 | way_t *way = osm->way; | ||
761 | while(way) { | ||
762 | map_way_draw(map, way); | ||
763 | way = way->next; | ||
764 | } | ||
765 | |||
766 | printf("drawing single nodes ...\n"); | ||
767 | node_t *node = osm->node; | ||
768 | while(node) { | ||
769 | map_node_draw(map, node); | ||
770 | node = node->next; | ||
771 | } | ||
772 | |||
773 | printf("drawing frisket...\n"); | ||
774 | map_frisket_draw(map, osm->bounds); | ||
775 | } | ||
776 | |||
777 | void map_state_free(map_state_t *state) { | ||
778 | if(!state) return; | ||
779 | |||
780 | /* free state of noone else references it */ | ||
781 | if(state->refcount > 1) | ||
782 | state->refcount--; | ||
783 | else | ||
784 | g_free(state); | ||
785 | } | ||
786 | |||
787 | void map_free_map_item_chains(appdata_t *appdata) { | ||
788 | if(!appdata->osm) return; | ||
789 | |||
790 | #ifndef DESTROY_WAIT_FOR_GTK | ||
791 | printf(" DESTROY_WAIT_FOR_GTK not set, removing all chains now\n"); | ||
792 | |||
793 | /* free all map_item_chains */ | ||
794 | node_t *node = appdata->osm->node; | ||
795 | while(node) { | ||
796 | map_item_chain_t *chain = node->map_item_chain; | ||
797 | while(chain) { | ||
798 | map_item_chain_t *next = chain->next; | ||
799 | g_free(chain); | ||
800 | chain = next; | ||
801 | } | ||
802 | node->map_item_chain = NULL; | ||
803 | node = node->next; | ||
804 | } | ||
805 | |||
806 | way_t *way = appdata->osm->way; | ||
807 | while(way) { | ||
808 | map_item_chain_t *chain = way->map_item_chain; | ||
809 | while(chain) { | ||
810 | map_item_chain_t *next = chain->next; | ||
811 | g_free(chain); | ||
812 | chain = next; | ||
813 | } | ||
814 | way->map_item_chain = NULL; | ||
815 | way = way->next; | ||
816 | } | ||
817 | #endif | ||
818 | } | ||
819 | |||
820 | static gint map_destroy_event(GtkWidget *widget, gpointer data) { | ||
821 | appdata_t *appdata = (appdata_t*)data; | ||
822 | map_t *map = appdata->map; | ||
823 | |||
824 | printf("destroying entire map\n"); | ||
825 | |||
826 | map_free_map_item_chains(appdata); | ||
827 | |||
828 | /* free buffered tags */ | ||
829 | if(map->last_node_tags) osm_tags_free(map->last_node_tags); | ||
830 | if(map->last_way_tags) osm_tags_free(map->last_way_tags); | ||
831 | |||
832 | map_state_free(map->state); | ||
833 | |||
834 | if(map->style) | ||
835 | style_free(map->style); | ||
836 | |||
837 | /* destroy existing highlight */ | ||
838 | if(map->highlight) { | ||
839 | printf("removing highlight\n"); | ||
840 | |||
841 | map_highlight_t *hl = map->highlight; | ||
842 | while(hl) { | ||
843 | map_highlight_t *next = hl->next; | ||
844 | g_free(hl); | ||
845 | hl = next; | ||
846 | } | ||
847 | } | ||
848 | |||
849 | g_free(map); | ||
850 | |||
851 | appdata->map = NULL; | ||
852 | |||
853 | return FALSE; | ||
854 | } | ||
855 | |||
856 | /* get the item at position x, y */ | ||
857 | map_item_t *map_item_at(map_t *map, gint x, gint y) { | ||
858 | printf("map check at %d/%d\n", x, y); | ||
859 | |||
860 | canvas_window2world(map->canvas, x, y, &x, &y); | ||
861 | |||
862 | printf("world check at %d/%d\n", x, y); | ||
863 | |||
864 | canvas_item_t *item = canvas_get_item_at(map->canvas, x, y); | ||
865 | |||
866 | if(!item) { | ||
867 | printf(" there's no item\n"); | ||
868 | return NULL; | ||
869 | } | ||
870 | |||
871 | printf(" there's an item (%p)\n", item); | ||
872 | |||
873 | map_item_t *map_item = canvas_item_get_user_data(item); | ||
874 | |||
875 | if(!map_item) { | ||
876 | printf(" item has no user data!\n"); | ||
877 | return NULL; | ||
878 | } | ||
879 | |||
880 | harbaum | 15 | if(map_item->highlight) |
881 | harbaum | 1 | printf(" item is highlight\n"); |
882 | |||
883 | harbaum | 154 | switch(map_item->object.type) { |
884 | case NODE: | ||
885 | printf(" item is node #%ld\n", map_item->object.node->id); | ||
886 | harbaum | 1 | break; |
887 | harbaum | 154 | case WAY: |
888 | printf(" item is way #%ld\n", map_item->object.way->id); | ||
889 | harbaum | 1 | break; |
890 | default: | ||
891 | printf(" unknown item\n"); | ||
892 | break; | ||
893 | } | ||
894 | |||
895 | return map_item; | ||
896 | } | ||
897 | |||
898 | /* get the real item (no highlight) at x, y */ | ||
899 | harbaum | 15 | map_item_t *map_real_item_at(map_t *map, gint x, gint y) { |
900 | harbaum | 1 | map_item_t *map_item = map_item_at(map, x, y); |
901 | |||
902 | /* no item or already a real one */ | ||
903 | if(!map_item || !map_item->highlight) return map_item; | ||
904 | |||
905 | /* get the item (parent) this item is the highlight of */ | ||
906 | map_item_t *parent = NULL; | ||
907 | harbaum | 154 | switch(map_item->object.type) { |
908 | harbaum | 1 | |
909 | harbaum | 154 | case NODE: |
910 | if(map_item->object.node->map_item_chain) | ||
911 | parent = map_item->object.node->map_item_chain->map_item; | ||
912 | harbaum | 1 | |
913 | if(parent) | ||
914 | harbaum | 154 | printf(" using parent item node #%ld\n", parent->object.node->id); |
915 | harbaum | 1 | break; |
916 | |||
917 | harbaum | 154 | case WAY: |
918 | if(map_item->object.way->map_item_chain) | ||
919 | parent = map_item->object.way->map_item_chain->map_item; | ||
920 | harbaum | 1 | |
921 | if(parent) | ||
922 | harbaum | 154 | printf(" using parent item way #%ld\n", parent->object.way->id); |
923 | harbaum | 1 | break; |
924 | |||
925 | default: | ||
926 | harbaum | 154 | g_assert((map_item->object.type == NODE) || |
927 | (map_item->object.type == WAY)); | ||
928 | harbaum | 1 | break; |
929 | } | ||
930 | |||
931 | if(parent) | ||
932 | map_item = parent; | ||
933 | else | ||
934 | printf(" no parent, working on highlight itself\n"); | ||
935 | |||
936 | return map_item; | ||
937 | } | ||
938 | |||
939 | /* Limitations on the amount by which we can scroll. Keeps part of the | ||
940 | * map visible at all times */ | ||
941 | harbaum | 103 | static void map_limit_scroll(map_t *map, canvas_unit_t unit, |
942 | gint *sx, gint *sy) { | ||
943 | harbaum | 1 | |
944 | harbaum | 103 | /* get scale factor for pixel->meter conversion. set to 1 if */ |
945 | /* given coordinates are already in meters */ | ||
946 | gdouble scale = (unit == CANVAS_UNIT_METER)?1.0:canvas_get_zoom(map->canvas); | ||
947 | harbaum | 1 | |
948 | harbaum | 103 | /* convert pixels to meters if necessary */ |
949 | gdouble sx_cu = *sx / scale; | ||
950 | gdouble sy_cu = *sy / scale; | ||
951 | |||
952 | /* get size of visible area in canvas units (meters) */ | ||
953 | gint aw_cu = canvas_get_viewport_width(map->canvas, CANVAS_UNIT_METER); | ||
954 | gint ah_cu = canvas_get_viewport_height(map->canvas, CANVAS_UNIT_METER); | ||
955 | |||
956 | // Data rect minimum and maximum | ||
957 | gint min_x, min_y, max_x, max_y; | ||
958 | min_x = map->appdata->osm->bounds->min.x; | ||
959 | min_y = map->appdata->osm->bounds->min.y; | ||
960 | max_x = map->appdata->osm->bounds->max.x; | ||
961 | max_y = map->appdata->osm->bounds->max.y; | ||
962 | |||
963 | // limit stops - prevent scrolling beyond these | ||
964 | gint min_sy_cu = 0.95*(min_y - ah_cu); | ||
965 | gint min_sx_cu = 0.95*(min_x - aw_cu); | ||
966 | gint max_sy_cu = 0.95*(max_y); | ||
967 | gint max_sx_cu = 0.95*(max_x); | ||
968 | if (sy_cu < min_sy_cu) { *sy = min_sy_cu * scale; } | ||
969 | if (sx_cu < min_sx_cu) { *sx = min_sx_cu * scale; } | ||
970 | if (sy_cu > max_sy_cu) { *sy = max_sy_cu * scale; } | ||
971 | if (sx_cu > max_sx_cu) { *sx = max_sx_cu * scale; } | ||
972 | harbaum | 1 | } |
973 | |||
974 | |||
975 | /* Limit a proposed zoom factor to sane ranges. | ||
976 | * Specifically the map is allowed to be no smaller than the viewport. */ | ||
977 | static gboolean map_limit_zoom(map_t *map, gdouble *zoom) { | ||
978 | // Data rect minimum and maximum | ||
979 | gint min_x, min_y, max_x, max_y; | ||
980 | min_x = map->appdata->osm->bounds->min.x; | ||
981 | min_y = map->appdata->osm->bounds->min.y; | ||
982 | max_x = map->appdata->osm->bounds->max.x; | ||
983 | max_y = map->appdata->osm->bounds->max.y; | ||
984 | |||
985 | harbaum | 103 | /* get size of visible area in pixels and convert to meters of intended */ |
986 | /* zoom by deviding by zoom (which is basically pix/m) */ | ||
987 | gint aw_cu = | ||
988 | canvas_get_viewport_width(map->canvas, CANVAS_UNIT_PIXEL) / *zoom; | ||
989 | gint ah_cu = | ||
990 | canvas_get_viewport_height(map->canvas, CANVAS_UNIT_PIXEL) / *zoom; | ||
991 | harbaum | 1 | |
992 | gdouble oldzoom = *zoom; | ||
993 | if (ah_cu < aw_cu) { | ||
994 | gint lim_h = ah_cu*0.95; | ||
995 | if (max_y-min_y < lim_h) { | ||
996 | gdouble corr = ((gdouble)max_y-min_y) / (gdouble)lim_h; | ||
997 | *zoom /= corr; | ||
998 | } | ||
999 | } | ||
1000 | else { | ||
1001 | gint lim_w = aw_cu*0.95; | ||
1002 | if (max_x-min_x < lim_w) { | ||
1003 | gdouble corr = ((gdouble)max_x-min_x) / (gdouble)lim_w; | ||
1004 | *zoom /= corr; | ||
1005 | } | ||
1006 | } | ||
1007 | if (*zoom != oldzoom) { | ||
1008 | printf("Can't zoom further out\n"); | ||
1009 | return 1; | ||
1010 | } | ||
1011 | return 0; | ||
1012 | } | ||
1013 | |||
1014 | |||
1015 | achadwick | 12 | /* |
1016 | * Scroll the map to a point if that point is currently offscreen. | ||
1017 | */ | ||
1018 | void map_scroll_to_if_offscreen(map_t *map, lpos_t *lpos) { | ||
1019 | |||
1020 | // Ignore anything outside the working area | ||
1021 | if (!(map && map->appdata && map->appdata->osm)) { | ||
1022 | return; | ||
1023 | } | ||
1024 | gint min_x, min_y, max_x, max_y; | ||
1025 | min_x = map->appdata->osm->bounds->min.x; | ||
1026 | min_y = map->appdata->osm->bounds->min.y; | ||
1027 | max_x = map->appdata->osm->bounds->max.x; | ||
1028 | max_y = map->appdata->osm->bounds->max.y; | ||
1029 | if ( (lpos->x > max_x) || (lpos->x < min_x) | ||
1030 | || (lpos->y > max_y) || (lpos->y < min_y)) { | ||
1031 | harbaum | 14 | printf("cannot scroll to (%d, %d): outside the working area\n", |
1032 | lpos->x, lpos->y); | ||
1033 | achadwick | 12 | return; |
1034 | } | ||
1035 | |||
1036 | // Viewport dimensions in canvas space | ||
1037 | |||
1038 | harbaum | 103 | /* get size of visible area in canvas units (meters) */ |
1039 | gdouble pix_per_meter = canvas_get_zoom(map->canvas); | ||
1040 | gdouble aw = canvas_get_viewport_width(map->canvas, CANVAS_UNIT_METER); | ||
1041 | gdouble ah = canvas_get_viewport_height(map->canvas, CANVAS_UNIT_METER); | ||
1042 | |||
1043 | achadwick | 12 | // Is the point still onscreen? |
1044 | gboolean vert_recentre_needed = FALSE; | ||
1045 | gboolean horiz_recentre_needed = FALSE; | ||
1046 | gint sx, sy; | ||
1047 | harbaum | 103 | canvas_scroll_get(map->canvas, CANVAS_UNIT_PIXEL, &sx, &sy); |
1048 | gint viewport_left = (sx/pix_per_meter); | ||
1049 | gint viewport_right = (sx/pix_per_meter)+aw; | ||
1050 | gint viewport_top = (sy/pix_per_meter); | ||
1051 | gint viewport_bottom = (sy/pix_per_meter)+ah; | ||
1052 | achadwick | 12 | if (lpos->x > viewport_right) { |
1053 | printf("** off right edge (%d > %d)\n", lpos->x, viewport_right); | ||
1054 | horiz_recentre_needed = TRUE; | ||
1055 | } | ||
1056 | if (lpos->x < viewport_left) { | ||
1057 | printf("** off left edge (%d < %d)\n", lpos->x, viewport_left); | ||
1058 | horiz_recentre_needed = TRUE; | ||
1059 | } | ||
1060 | if (lpos->y > viewport_bottom) { | ||
1061 | printf("** off bottom edge (%d > %d)\n", lpos->y, viewport_bottom); | ||
1062 | vert_recentre_needed = TRUE; | ||
1063 | } | ||
1064 | if (lpos->y < viewport_top) { | ||
1065 | printf("** off top edge (%d < %d)\n", lpos->y, viewport_top); | ||
1066 | vert_recentre_needed = TRUE; | ||
1067 | } | ||
1068 | |||
1069 | if (horiz_recentre_needed || vert_recentre_needed) { | ||
1070 | gint new_sx, new_sy; | ||
1071 | harbaum | 78 | |
1072 | achadwick | 12 | // Just centre both at once |
1073 | harbaum | 103 | new_sx = pix_per_meter * (lpos->x - (aw/2)); |
1074 | new_sy = pix_per_meter * (lpos->y - (ah/2)); | ||
1075 | harbaum | 78 | |
1076 | harbaum | 103 | map_limit_scroll(map, CANVAS_UNIT_PIXEL, &new_sx, &new_sy); |
1077 | canvas_scroll_to(map->canvas, CANVAS_UNIT_PIXEL, new_sx, new_sy); | ||
1078 | achadwick | 12 | } |
1079 | } | ||
1080 | |||
1081 | harbaum | 1 | /* Deselects the current way or node if its zoom_max |
1082 | * means that it's not going to render at the current map zoom. */ | ||
1083 | void map_deselect_if_zoom_below_zoom_max(map_t *map) { | ||
1084 | harbaum | 154 | if (map->selected.object.type == WAY) { |
1085 | harbaum | 1 | printf("will deselect way if zoomed below %f\n", |
1086 | harbaum | 154 | map->selected.object.way->draw.zoom_max); |
1087 | if (map->state->zoom < map->selected.object.way->draw.zoom_max) { | ||
1088 | harbaum | 1 | printf(" deselecting way!\n"); |
1089 | map_item_deselect(map->appdata); | ||
1090 | } | ||
1091 | } | ||
1092 | harbaum | 154 | else if (map->selected.object.type == NODE) { |
1093 | harbaum | 1 | printf("will deselect node if zoomed below %f\n", |
1094 | harbaum | 154 | map->selected.object.node->zoom_max); |
1095 | if (map->state->zoom < map->selected.object.node->zoom_max) { | ||
1096 | harbaum | 1 | printf(" deselecting node!\n"); |
1097 | map_item_deselect(map->appdata); | ||
1098 | } | ||
1099 | } | ||
1100 | } | ||
1101 | |||
1102 | void map_set_zoom(map_t *map, double zoom, | ||
1103 | gboolean update_scroll_offsets) { | ||
1104 | gboolean at_zoom_limit = 0; | ||
1105 | at_zoom_limit = map_limit_zoom(map, &zoom); | ||
1106 | harbaum | 78 | |
1107 | harbaum | 1 | map->state->zoom = zoom; |
1108 | canvas_set_zoom(map->canvas, map->state->zoom); | ||
1109 | |||
1110 | map_deselect_if_zoom_below_zoom_max(map); | ||
1111 | |||
1112 | harbaum | 103 | if(update_scroll_offsets) { |
1113 | harbaum | 1 | if (!at_zoom_limit) { |
1114 | /* zooming affects the scroll offsets */ | ||
1115 | gint sx, sy; | ||
1116 | harbaum | 103 | canvas_scroll_get(map->canvas, CANVAS_UNIT_PIXEL, &sx, &sy); |
1117 | map_limit_scroll(map, CANVAS_UNIT_PIXEL, &sx, &sy); | ||
1118 | |||
1119 | // keep the map visible | ||
1120 | canvas_scroll_to(map->canvas, CANVAS_UNIT_PIXEL, sx, sy); | ||
1121 | harbaum | 1 | } |
1122 | harbaum | 103 | |
1123 | canvas_scroll_get(map->canvas, CANVAS_UNIT_METER, | ||
1124 | &map->state->scroll_offset.x, | ||
1125 | &map->state->scroll_offset.y); | ||
1126 | harbaum | 1 | } |
1127 | } | ||
1128 | |||
1129 | static gboolean map_scroll_event(GtkWidget *widget, GdkEventScroll *event, | ||
1130 | gpointer data) { | ||
1131 | appdata_t *appdata = (appdata_t*)data; | ||
1132 | |||
1133 | if(!appdata->osm) return FALSE; | ||
1134 | |||
1135 | if(event->type == GDK_SCROLL && appdata->map && appdata->map->state) { | ||
1136 | if(event->direction) | ||
1137 | map_set_zoom(appdata->map, | ||
1138 | appdata->map->state->zoom / ZOOM_FACTOR_WHEEL, TRUE); | ||
1139 | else | ||
1140 | map_set_zoom(appdata->map, | ||
1141 | appdata->map->state->zoom * ZOOM_FACTOR_WHEEL, TRUE); | ||
1142 | } | ||
1143 | |||
1144 | return TRUE; | ||
1145 | } | ||
1146 | |||
1147 | static gboolean distance_above(map_t *map, gint x, gint y, gint limit) { | ||
1148 | gint sx, sy; | ||
1149 | |||
1150 | /* add offsets generated by mouse within map and map scrolling */ | ||
1151 | sx = (x-map->pen_down.at.x); | ||
1152 | sy = (y-map->pen_down.at.y); | ||
1153 | |||
1154 | return(sx*sx + sy*sy > limit*limit); | ||
1155 | } | ||
1156 | |||
1157 | /* scroll with respect to two screen positions */ | ||
1158 | static void map_do_scroll(map_t *map, gint x, gint y) { | ||
1159 | gint sx, sy; | ||
1160 | |||
1161 | harbaum | 103 | canvas_scroll_get(map->canvas, CANVAS_UNIT_PIXEL, &sx, &sy); |
1162 | harbaum | 1 | sx -= x-map->pen_down.at.x; |
1163 | sy -= y-map->pen_down.at.y; | ||
1164 | harbaum | 103 | map_limit_scroll(map, CANVAS_UNIT_PIXEL, &sx, &sy); |
1165 | canvas_scroll_to(map->canvas, CANVAS_UNIT_PIXEL, sx, sy); | ||
1166 | |||
1167 | canvas_scroll_get(map->canvas, CANVAS_UNIT_METER, | ||
1168 | &map->state->scroll_offset.x, | ||
1169 | &map->state->scroll_offset.y); | ||
1170 | harbaum | 1 | } |
1171 | |||
1172 | |||
1173 | /* scroll a certain step */ | ||
1174 | static void map_do_scroll_step(map_t *map, gint x, gint y) { | ||
1175 | gint sx, sy; | ||
1176 | harbaum | 103 | canvas_scroll_get(map->canvas, CANVAS_UNIT_PIXEL, &sx, &sy); |
1177 | harbaum | 1 | sx += x; |
1178 | sy += y; | ||
1179 | harbaum | 103 | map_limit_scroll(map, CANVAS_UNIT_PIXEL, &sx, &sy); |
1180 | canvas_scroll_to(map->canvas, CANVAS_UNIT_PIXEL, sx, sy); | ||
1181 | |||
1182 | canvas_scroll_get(map->canvas, CANVAS_UNIT_METER, | ||
1183 | &map->state->scroll_offset.x, | ||
1184 | &map->state->scroll_offset.y); | ||
1185 | harbaum | 1 | } |
1186 | |||
1187 | gboolean map_item_is_selected_node(map_t *map, map_item_t *map_item) { | ||
1188 | printf("check if item is a selected node\n"); | ||
1189 | |||
1190 | if(!map_item) { | ||
1191 | printf(" no item requested\n"); | ||
1192 | return FALSE; | ||
1193 | } | ||
1194 | |||
1195 | harbaum | 154 | if(map->selected.object.type == ILLEGAL) { |
1196 | harbaum | 1 | printf(" nothing is selected\n"); |
1197 | return FALSE; | ||
1198 | } | ||
1199 | |||
1200 | /* clicked the highlight directly */ | ||
1201 | harbaum | 154 | if(map_item->object.type != NODE) { |
1202 | harbaum | 1 | printf(" didn't click node\n"); |
1203 | return FALSE; | ||
1204 | } | ||
1205 | |||
1206 | harbaum | 154 | if(map->selected.object.type == NODE) { |
1207 | harbaum | 1 | printf(" selected item is a node\n"); |
1208 | |||
1209 | harbaum | 154 | if(map_item->object.node == map->selected.object.node) { |
1210 | harbaum | 1 | printf(" requested item is a selected node\n"); |
1211 | return TRUE; | ||
1212 | } | ||
1213 | printf(" but it's not the requested one\n"); | ||
1214 | return FALSE; | ||
1215 | |||
1216 | harbaum | 154 | } else if(map->selected.object.type == WAY) { |
1217 | harbaum | 1 | printf(" selected item is a way\n"); |
1218 | |||
1219 | harbaum | 154 | node_chain_t *node_chain = map->selected.object.way->node_chain; |
1220 | harbaum | 1 | while(node_chain) { |
1221 | harbaum | 154 | if(node_chain->node == map_item->object.node) { |
1222 | harbaum | 1 | printf(" requested item is part of selected way\n"); |
1223 | return TRUE; | ||
1224 | } | ||
1225 | node_chain = node_chain->next; | ||
1226 | } | ||
1227 | printf(" but it doesn't include the requested node\n"); | ||
1228 | return FALSE; | ||
1229 | |||
1230 | } else { | ||
1231 | printf(" selected item is unknown\n"); | ||
1232 | return FALSE; | ||
1233 | } | ||
1234 | |||
1235 | g_assert(0); | ||
1236 | return TRUE; | ||
1237 | } | ||
1238 | |||
1239 | /* return true if the item given is the currenly selected way */ | ||
1240 | /* also return false if nothing is selected or the selection is no way */ | ||
1241 | gboolean map_item_is_selected_way(map_t *map, map_item_t *map_item) { | ||
1242 | printf("check if item is the selected way\n"); | ||
1243 | |||
1244 | if(!map_item) { | ||
1245 | printf(" no item requested\n"); | ||
1246 | return FALSE; | ||
1247 | } | ||
1248 | |||
1249 | harbaum | 154 | if(map->selected.object.type == ILLEGAL) { |
1250 | harbaum | 1 | printf(" nothing is selected\n"); |
1251 | return FALSE; | ||
1252 | } | ||
1253 | |||
1254 | /* clicked the highlight directly */ | ||
1255 | harbaum | 154 | if(map_item->object.type != WAY) { |
1256 | harbaum | 1 | printf(" didn't click way\n"); |
1257 | return FALSE; | ||
1258 | } | ||
1259 | |||
1260 | harbaum | 154 | if(map->selected.object.type == WAY) { |
1261 | harbaum | 1 | printf(" selected item is a way\n"); |
1262 | |||
1263 | harbaum | 154 | if(map_item->object.way == map->selected.object.way) { |
1264 | harbaum | 1 | printf(" requested item is a selected way\n"); |
1265 | return TRUE; | ||
1266 | } | ||
1267 | printf(" but it's not the requested one\n"); | ||
1268 | return FALSE; | ||
1269 | } | ||
1270 | |||
1271 | printf(" selected item is not a way\n"); | ||
1272 | return FALSE; | ||
1273 | } | ||
1274 | |||
1275 | |||
1276 | void map_highlight_refresh(appdata_t *appdata) { | ||
1277 | map_t *map = appdata->map; | ||
1278 | harbaum | 154 | object_t old = map->selected.object; |
1279 | harbaum | 1 | |
1280 | printf("type to refresh is %d\n", old.type); | ||
1281 | harbaum | 154 | if(old.type == ILLEGAL) |
1282 | harbaum | 1 | return; |
1283 | |||
1284 | map_item_deselect(appdata); | ||
1285 | harbaum | 154 | map_object_select(appdata, &old); |
1286 | harbaum | 1 | } |
1287 | |||
1288 | void map_way_delete(appdata_t *appdata, way_t *way) { | ||
1289 | printf("deleting way #%ld from map and osm\n", way->id); | ||
1290 | |||
1291 | /* remove it visually from the screen */ | ||
1292 | map_item_chain_destroy(&way->map_item_chain); | ||
1293 | |||
1294 | /* also remove the visible representation of all nodes (nodes with tags) */ | ||
1295 | node_chain_t *chain = way->node_chain; | ||
1296 | while(chain) { | ||
1297 | if(chain->node->map_item_chain) | ||
1298 | map_item_chain_destroy(&chain->node->map_item_chain); | ||
1299 | |||
1300 | chain = chain->next; | ||
1301 | } | ||
1302 | |||
1303 | /* and mark it "deleted" in the database */ | ||
1304 | osm_way_remove_from_relation(appdata->osm, way); | ||
1305 | osm_way_delete(appdata->osm, &appdata->icon, way, FALSE); | ||
1306 | } | ||
1307 | |||
1308 | static void map_handle_click(appdata_t *appdata, map_t *map) { | ||
1309 | |||
1310 | /* problem: on_item may be the highlight itself! So store it! */ | ||
1311 | map_item_t map_item; | ||
1312 | if(map->pen_down.on_item) map_item = *map->pen_down.on_item; | ||
1313 | harbaum | 154 | else map_item.object.type = ILLEGAL; |
1314 | harbaum | 1 | |
1315 | /* if we aready have something selected, then de-select it */ | ||
1316 | map_item_deselect(appdata); | ||
1317 | |||
1318 | /* select the clicked item (if there was one) */ | ||
1319 | harbaum | 154 | if(map_item.object.type != ILLEGAL) { |
1320 | switch(map_item.object.type) { | ||
1321 | case NODE: | ||
1322 | map_node_select(appdata, map_item.object.node); | ||
1323 | harbaum | 1 | break; |
1324 | |||
1325 | harbaum | 154 | case WAY: |
1326 | map_way_select(appdata, map_item.object.way); | ||
1327 | harbaum | 1 | break; |
1328 | |||
1329 | default: | ||
1330 | harbaum | 154 | g_assert((map_item.object.type == NODE) || |
1331 | (map_item.object.type == WAY)); | ||
1332 | harbaum | 1 | break; |
1333 | } | ||
1334 | } | ||
1335 | } | ||
1336 | |||
1337 | static void map_touchnode_update(appdata_t *appdata, gint x, gint y) { | ||
1338 | map_t *map = appdata->map; | ||
1339 | |||
1340 | map_hl_touchnode_clear(map); | ||
1341 | |||
1342 | node_t *cur_node = NULL; | ||
1343 | |||
1344 | /* the "current node" which is the one we are working on and which */ | ||
1345 | /* should not be highlighted depends on the action */ | ||
1346 | switch(map->action.type) { | ||
1347 | |||
1348 | /* in idle mode the dragged node is not highlighted */ | ||
1349 | case MAP_ACTION_IDLE: | ||
1350 | g_assert(map->pen_down.on_item); | ||
1351 | harbaum | 154 | g_assert(map->pen_down.on_item->object.type == NODE); |
1352 | cur_node = map->pen_down.on_item->object.node; | ||
1353 | harbaum | 1 | break; |
1354 | |||
1355 | default: | ||
1356 | break; | ||
1357 | } | ||
1358 | |||
1359 | |||
1360 | /* check if we are close to one of the other nodes */ | ||
1361 | canvas_window2world(appdata->map->canvas, x, y, &x, &y); | ||
1362 | node_t *node = appdata->osm->node; | ||
1363 | while(!map->touchnode && node) { | ||
1364 | /* don't highlight the dragged node itself and don't highlight */ | ||
1365 | /* deleted ones */ | ||
1366 | if((node != cur_node) && (!(node->flags & OSM_FLAG_DELETED))) { | ||
1367 | gint nx = x - node->lpos.x; | ||
1368 | gint ny = y - node->lpos.y; | ||
1369 | |||
1370 | if((nx < map->style->node.radius) && (ny < map->style->node.radius) && | ||
1371 | (nx*nx + ny*ny < map->style->node.radius * map->style->node.radius)) | ||
1372 | map_hl_touchnode_draw(map, node); | ||
1373 | } | ||
1374 | node = node->next; | ||
1375 | } | ||
1376 | |||
1377 | /* during way creation also nodes of the new way */ | ||
1378 | /* need to be searched */ | ||
1379 | if(!map->touchnode && map->action.way) { | ||
1380 | node_chain_t *chain = map->action.way->node_chain; | ||
1381 | while(!map->touchnode && chain && chain->next) { | ||
1382 | gint nx = x - chain->node->lpos.x; | ||
1383 | gint ny = y - chain->node->lpos.y; | ||
1384 | |||
1385 | if((nx < map->style->node.radius) && (ny < map->style->node.radius) && | ||
1386 | (nx*nx + ny*ny < map->style->node.radius * map->style->node.radius)) | ||
1387 | map_hl_touchnode_draw(map, chain->node); | ||
1388 | |||
1389 | chain = chain->next; | ||
1390 | } | ||
1391 | } | ||
1392 | } | ||
1393 | |||
1394 | static void map_button_press(map_t *map, gint x, gint y) { | ||
1395 | |||
1396 | printf("left button pressed\n"); | ||
1397 | map->pen_down.is = TRUE; | ||
1398 | |||
1399 | /* save press position */ | ||
1400 | map->pen_down.at.x = x; | ||
1401 | map->pen_down.at.y = y; | ||
1402 | map->pen_down.drag = FALSE; // don't assume drag yet | ||
1403 | |||
1404 | /* determine wether this press was on an item */ | ||
1405 | map->pen_down.on_item = map_real_item_at(map, x, y); | ||
1406 | |||
1407 | /* check if the clicked item is a highlighted node as the user */ | ||
1408 | /* might want to drag that */ | ||
1409 | map->pen_down.on_selected_node = FALSE; | ||
1410 | if(map->pen_down.on_item) | ||
1411 | map->pen_down.on_selected_node = | ||
1412 | map_item_is_selected_node(map, map->pen_down.on_item); | ||
1413 | |||
1414 | /* button press */ | ||
1415 | switch(map->action.type) { | ||
1416 | |||
1417 | case MAP_ACTION_WAY_NODE_ADD: | ||
1418 | map_edit_way_node_add_highlight(map, map->pen_down.on_item, x, y); | ||
1419 | break; | ||
1420 | |||
1421 | case MAP_ACTION_WAY_CUT: | ||
1422 | map_edit_way_cut_highlight(map, map->pen_down.on_item, x, y); | ||
1423 | break; | ||
1424 | |||
1425 | case MAP_ACTION_NODE_ADD: | ||
1426 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); | ||
1427 | break; | ||
1428 | |||
1429 | case MAP_ACTION_WAY_ADD: | ||
1430 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); | ||
1431 | map_touchnode_update(map->appdata, x, y); | ||
1432 | break; | ||
1433 | |||
1434 | default: | ||
1435 | break; | ||
1436 | } | ||
1437 | } | ||
1438 | |||
1439 | /* move the background image (wms data) during wms adjustment */ | ||
1440 | static void map_bg_adjust(map_t *map, gint x, gint y) { | ||
1441 | g_assert(map->appdata); | ||
1442 | g_assert(map->appdata->osm); | ||
1443 | g_assert(map->appdata->osm->bounds); | ||
1444 | |||
1445 | x += map->appdata->osm->bounds->min.x + map->bg.offset.x - | ||
1446 | map->pen_down.at.x; | ||
1447 | y += map->appdata->osm->bounds->min.y + map->bg.offset.y - | ||
1448 | map->pen_down.at.y; | ||
1449 | |||
1450 | canvas_image_move(map->bg.item, x, y, map->bg.scale.x, map->bg.scale.y); | ||
1451 | } | ||
1452 | |||
1453 | static void map_button_release(map_t *map, gint x, gint y) { | ||
1454 | map->pen_down.is = FALSE; | ||
1455 | |||
1456 | /* before button release is handled */ | ||
1457 | switch(map->action.type) { | ||
1458 | case MAP_ACTION_BG_ADJUST: | ||
1459 | map_bg_adjust(map, x, y); | ||
1460 | map->bg.offset.x += x - map->pen_down.at.x; | ||
1461 | map->bg.offset.y += y - map->pen_down.at.y; | ||
1462 | break; | ||
1463 | |||
1464 | case MAP_ACTION_IDLE: | ||
1465 | /* check if distance to press is above drag limit */ | ||
1466 | if(!map->pen_down.drag) | ||
1467 | map->pen_down.drag = distance_above(map, x, y, MAP_DRAG_LIMIT); | ||
1468 | |||
1469 | if(!map->pen_down.drag) { | ||
1470 | printf("left button released after click\n"); | ||
1471 | |||
1472 | map_item_t old_sel = map->selected; | ||
1473 | map_handle_click(map->appdata, map); | ||
1474 | |||
1475 | harbaum | 154 | if((old_sel.object.type != ILLEGAL) && |
1476 | (old_sel.object.type == map->selected.object.type) && | ||
1477 | (old_sel.object.ptr == map->selected.object.ptr)) { | ||
1478 | harbaum | 1 | printf("re-selected same item of type %d, " |
1479 | harbaum | 154 | "pushing it to the bottom\n", old_sel.object.type); |
1480 | harbaum | 1 | |
1481 | if(!map->selected.item) { | ||
1482 | printf(" item has no visible representation to push\n"); | ||
1483 | } else { | ||
1484 | canvas_item_to_bottom(map->selected.item); | ||
1485 | |||
1486 | /* update clicked item, to correctly handle the click */ | ||
1487 | map->pen_down.on_item = | ||
1488 | map_real_item_at(map, map->pen_down.at.x, map->pen_down.at.y); | ||
1489 | |||
1490 | map_handle_click(map->appdata, map); | ||
1491 | } | ||
1492 | } | ||
1493 | } else { | ||
1494 | printf("left button released after drag\n"); | ||
1495 | |||
1496 | /* just scroll if we didn't drag an selected item */ | ||
1497 | if(!map->pen_down.on_selected_node) | ||
1498 | map_do_scroll(map, x, y); | ||
1499 | else { | ||
1500 | printf("released after dragging node\n"); | ||
1501 | map_hl_cursor_clear(map); | ||
1502 | |||
1503 | /* now actually move the node */ | ||
1504 | map_edit_node_move(map->appdata, map->pen_down.on_item, x, y); | ||
1505 | } | ||
1506 | } | ||
1507 | break; | ||
1508 | |||
1509 | case MAP_ACTION_NODE_ADD: | ||
1510 | printf("released after NODE ADD\n"); | ||
1511 | map_hl_cursor_clear(map); | ||
1512 | |||
1513 | /* convert mouse position to canvas (world) position */ | ||
1514 | canvas_window2world(map->canvas, x, y, &x, &y); | ||
1515 | |||
1516 | node_t *node = NULL; | ||
1517 | if(!osm_position_within_bounds(map->appdata->osm, x, y)) | ||
1518 | map_outside_error(map->appdata); | ||
1519 | else { | ||
1520 | node = osm_node_new(map->appdata->osm, x, y); | ||
1521 | osm_node_attach(map->appdata->osm, node); | ||
1522 | map_node_draw(map, node); | ||
1523 | } | ||
1524 | map_action_set(map->appdata, MAP_ACTION_IDLE); | ||
1525 | |||
1526 | map_item_deselect(map->appdata); | ||
1527 | |||
1528 | if(node) { | ||
1529 | map_node_select(map->appdata, node); | ||
1530 | |||
1531 | /* let the user specify some tags for the new node */ | ||
1532 | info_dialog(GTK_WIDGET(map->appdata->window), map->appdata, NULL); | ||
1533 | } | ||
1534 | break; | ||
1535 | |||
1536 | case MAP_ACTION_WAY_ADD: | ||
1537 | printf("released after WAY ADD\n"); | ||
1538 | map_hl_cursor_clear(map); | ||
1539 | |||
1540 | map_edit_way_add_segment(map, x, y); | ||
1541 | break; | ||
1542 | |||
1543 | case MAP_ACTION_WAY_NODE_ADD: | ||
1544 | printf("released after WAY NODE ADD\n"); | ||
1545 | map_hl_cursor_clear(map); | ||
1546 | |||
1547 | map_edit_way_node_add(map, x, y); | ||
1548 | break; | ||
1549 | |||
1550 | case MAP_ACTION_WAY_CUT: | ||
1551 | printf("released after WAY CUT\n"); | ||
1552 | map_hl_cursor_clear(map); | ||
1553 | |||
1554 | map_edit_way_cut(map, x, y); | ||
1555 | break; | ||
1556 | |||
1557 | |||
1558 | default: | ||
1559 | break; | ||
1560 | } | ||
1561 | } | ||
1562 | |||
1563 | static gboolean map_button_event(GtkWidget *widget, GdkEventButton *event, | ||
1564 | gpointer data) { | ||
1565 | appdata_t *appdata = (appdata_t*)data; | ||
1566 | map_t *map = appdata->map; | ||
1567 | |||
1568 | if(!appdata->osm) return FALSE; | ||
1569 | |||
1570 | if(event->button == 1) { | ||
1571 | gint x = event->x, y = event->y; | ||
1572 | |||
1573 | if(event->type == GDK_BUTTON_PRESS) | ||
1574 | map_button_press(map, x, y); | ||
1575 | |||
1576 | if(event->type == GDK_BUTTON_RELEASE) | ||
1577 | map_button_release(map, x, y); | ||
1578 | } | ||
1579 | |||
1580 | return FALSE; /* forward to further processing */ | ||
1581 | } | ||
1582 | |||
1583 | static gboolean map_motion_notify_event(GtkWidget *widget, | ||
1584 | GdkEventMotion *event, gpointer data) { | ||
1585 | appdata_t *appdata = (appdata_t*)data; | ||
1586 | map_t *map = appdata->map; | ||
1587 | gint x, y; | ||
1588 | GdkModifierType state; | ||
1589 | |||
1590 | if(!appdata->osm) return FALSE; | ||
1591 | |||
1592 | #ifdef USE_HILDON | ||
1593 | /* reduce update frequency on hildon to keep screen update fluid */ | ||
1594 | static guint32 last_time = 0; | ||
1595 | |||
1596 | harbaum | 24 | if(event->time - last_time < 250) return FALSE; |
1597 | harbaum | 1 | last_time = event->time; |
1598 | #endif | ||
1599 | |||
1600 | if(!map->pen_down.is) | ||
1601 | return FALSE; | ||
1602 | |||
1603 | harbaum | 78 | #ifndef USE_GOOCANVAS |
1604 | harbaum | 1 | /* handle hints, hints are handled by goocanvas directly */ |
1605 | if(event->is_hint) | ||
1606 | gdk_window_get_pointer(event->window, &x, &y, &state); | ||
1607 | else | ||
1608 | #endif | ||
1609 | { | ||
1610 | x = event->x; | ||
1611 | y = event->y; | ||
1612 | state = event->state; | ||
1613 | } | ||
1614 | |||
1615 | /* check if distance to press is above drag limit */ | ||
1616 | if(!map->pen_down.drag) | ||
1617 | map->pen_down.drag = distance_above(map, x, y, MAP_DRAG_LIMIT); | ||
1618 | |||
1619 | /* drag */ | ||
1620 | switch(map->action.type) { | ||
1621 | case MAP_ACTION_BG_ADJUST: | ||
1622 | map_bg_adjust(map, x, y); | ||
1623 | break; | ||
1624 | |||
1625 | case MAP_ACTION_IDLE: | ||
1626 | if(map->pen_down.drag) { | ||
1627 | /* just scroll if we didn't drag an selected item */ | ||
1628 | if(!map->pen_down.on_selected_node) | ||
1629 | map_do_scroll(map, x, y); | ||
1630 | else { | ||
1631 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); | ||
1632 | map_touchnode_update(appdata, x, y); | ||
1633 | } | ||
1634 | } | ||
1635 | break; | ||
1636 | |||
1637 | case MAP_ACTION_NODE_ADD: | ||
1638 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); | ||
1639 | break; | ||
1640 | harbaum | 15 | |
1641 | harbaum | 1 | case MAP_ACTION_WAY_ADD: |
1642 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); | ||
1643 | map_touchnode_update(appdata, x, y); | ||
1644 | break; | ||
1645 | |||
1646 | case MAP_ACTION_WAY_NODE_ADD: | ||
1647 | map_hl_cursor_clear(map); | ||
1648 | harbaum | 105 | map_item_t *item = map_item_at(map, x, y); |
1649 | harbaum | 1 | if(item) map_edit_way_node_add_highlight(map, item, x, y); |
1650 | break; | ||
1651 | |||
1652 | case MAP_ACTION_WAY_CUT: | ||
1653 | map_hl_cursor_clear(map); | ||
1654 | harbaum | 105 | item = map_item_at(map, x, y); |
1655 | harbaum | 1 | if(item) map_edit_way_cut_highlight(map, item, x, y); |
1656 | break; | ||
1657 | |||
1658 | default: | ||
1659 | break; | ||
1660 | } | ||
1661 | |||
1662 | |||
1663 | return FALSE; /* forward to further processing */ | ||
1664 | } | ||
1665 | |||
1666 | gboolean map_key_press_event(appdata_t *appdata, GdkEventKey *event) { | ||
1667 | |||
1668 | if(!appdata->osm) return FALSE; | ||
1669 | |||
1670 | /* map needs to be there to handle buttons */ | ||
1671 | if(!appdata->map->canvas) | ||
1672 | return FALSE; | ||
1673 | |||
1674 | if(event->type == GDK_KEY_PRESS) { | ||
1675 | gdouble zoom = 0; | ||
1676 | switch(event->keyval) { | ||
1677 | |||
1678 | case GDK_Left: | ||
1679 | map_do_scroll_step(appdata->map, -50, 0); | ||
1680 | break; | ||
1681 | |||
1682 | case GDK_Right: | ||
1683 | map_do_scroll_step(appdata->map, +50, 0); | ||
1684 | break; | ||
1685 | |||
1686 | case GDK_Up: | ||
1687 | map_do_scroll_step(appdata->map, 0, -50); | ||
1688 | break; | ||
1689 | |||
1690 | case GDK_Down: | ||
1691 | map_do_scroll_step(appdata->map, 0, +50); | ||
1692 | break; | ||
1693 | |||
1694 | case GDK_Return: // same as HILDON_HARDKEY_SELECT | ||
1695 | /* if the ok button is enabled, call its function */ | ||
1696 | if(GTK_WIDGET_FLAGS(appdata->iconbar->ok) & GTK_SENSITIVE) | ||
1697 | map_action_ok(appdata); | ||
1698 | /* otherwise if info is enabled call that */ | ||
1699 | else if(GTK_WIDGET_FLAGS(appdata->iconbar->info) & GTK_SENSITIVE) | ||
1700 | info_dialog(GTK_WIDGET(appdata->window), appdata, NULL); | ||
1701 | break; | ||
1702 | |||
1703 | case GDK_Escape: // same as HILDON_HARDKEY_ESC | ||
1704 | /* if the cancel button is enabled, call its function */ | ||
1705 | if(GTK_WIDGET_FLAGS(appdata->iconbar->cancel) & GTK_SENSITIVE) | ||
1706 | map_action_cancel(appdata); | ||
1707 | break; | ||
1708 | |||
1709 | #ifdef USE_HILDON | ||
1710 | case HILDON_HARDKEY_INCREASE: | ||
1711 | #else | ||
1712 | case '+': | ||
1713 | #endif | ||
1714 | zoom = appdata->map->state->zoom; | ||
1715 | zoom *= ZOOM_FACTOR_BUTTON; | ||
1716 | map_set_zoom(appdata->map, zoom, TRUE); | ||
1717 | printf("zoom is now %f (1:%d)\n", zoom, (int)zoom_to_scaledn(zoom)); | ||
1718 | return TRUE; | ||
1719 | break; | ||
1720 | |||
1721 | #ifdef USE_HILDON | ||
1722 | case HILDON_HARDKEY_DECREASE: | ||
1723 | #else | ||
1724 | case '-': | ||
1725 | #endif | ||
1726 | zoom = appdata->map->state->zoom; | ||
1727 | zoom /= ZOOM_FACTOR_BUTTON; | ||
1728 | map_set_zoom(appdata->map, zoom, TRUE); | ||
1729 | printf("zoom is now %f (1:%d)\n", zoom, (int)zoom_to_scaledn(zoom)); | ||
1730 | return TRUE; | ||
1731 | break; | ||
1732 | |||
1733 | default: | ||
1734 | printf("key event %d\n", event->keyval); | ||
1735 | break; | ||
1736 | } | ||
1737 | } | ||
1738 | return FALSE; | ||
1739 | } | ||
1740 | |||
1741 | GtkWidget *map_new(appdata_t *appdata) { | ||
1742 | map_t *map = appdata->map = g_new0(map_t, 1); | ||
1743 | |||
1744 | map->style = style_load(appdata, appdata->settings->style); | ||
1745 | harbaum | 22 | if(!map->style) { |
1746 | errorf(NULL, _("Unable to load valid style, terminating.")); | ||
1747 | g_free(map); | ||
1748 | return NULL; | ||
1749 | } | ||
1750 | harbaum | 1 | |
1751 | if(appdata->project && appdata->project->map_state) { | ||
1752 | printf("Using projects map state\n"); | ||
1753 | map->state = appdata->project->map_state; | ||
1754 | } else { | ||
1755 | printf("Creating new map state\n"); | ||
1756 | map->state = g_new0(map_state_t, 1); | ||
1757 | map->state->zoom = 0.25; | ||
1758 | } | ||
1759 | |||
1760 | map->state->refcount++; | ||
1761 | |||
1762 | map->pen_down.at.x = -1; | ||
1763 | map->pen_down.at.y = -1; | ||
1764 | map->appdata = appdata; | ||
1765 | map->action.type = MAP_ACTION_IDLE; | ||
1766 | |||
1767 | harbaum | 103 | map->canvas = canvas_new(map->style->background.color); |
1768 | canvas_set_antialias(map->canvas, !appdata->settings->no_antialias); | ||
1769 | harbaum | 1 | |
1770 | harbaum | 103 | GtkWidget *canvas_widget = canvas_get_widget(map->canvas); |
1771 | harbaum | 1 | |
1772 | harbaum | 103 | gtk_widget_set_events(canvas_widget, |
1773 | harbaum | 1 | GDK_BUTTON_PRESS_MASK |
1774 | | GDK_BUTTON_RELEASE_MASK | ||
1775 | | GDK_SCROLL_MASK | ||
1776 | | GDK_POINTER_MOTION_MASK | ||
1777 | | GDK_POINTER_MOTION_HINT_MASK); | ||
1778 | |||
1779 | harbaum | 103 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1780 | harbaum | 1 | "button_press_event", G_CALLBACK(map_button_event), appdata); |
1781 | harbaum | 103 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1782 | harbaum | 1 | "button_release_event", G_CALLBACK(map_button_event), appdata); |
1783 | harbaum | 103 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1784 | harbaum | 1 | "motion_notify_event", G_CALLBACK(map_motion_notify_event), appdata); |
1785 | harbaum | 103 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1786 | harbaum | 1 | "scroll_event", G_CALLBACK(map_scroll_event), appdata); |
1787 | |||
1788 | harbaum | 103 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1789 | harbaum | 1 | "destroy", G_CALLBACK(map_destroy_event), appdata); |
1790 | |||
1791 | harbaum | 103 | return canvas_widget; |
1792 | harbaum | 1 | } |
1793 | |||
1794 | void map_init(appdata_t *appdata) { | ||
1795 | map_t *map = appdata->map; | ||
1796 | |||
1797 | /* set initial zoom */ | ||
1798 | map_set_zoom(map, map->state->zoom, FALSE); | ||
1799 | josm_elemstyles_colorize_world(map->style, appdata->osm); | ||
1800 | |||
1801 | map_draw(map, appdata->osm); | ||
1802 | |||
1803 | float mult = appdata->map->style->frisket.mult; | ||
1804 | canvas_set_bounds(map->canvas, | ||
1805 | mult*appdata->osm->bounds->min.x, | ||
1806 | mult*appdata->osm->bounds->min.y, | ||
1807 | mult*appdata->osm->bounds->max.x, | ||
1808 | mult*appdata->osm->bounds->max.y); | ||
1809 | |||
1810 | harbaum | 103 | printf("restore scroll position %d/%d\n", |
1811 | harbaum | 1 | map->state->scroll_offset.x, map->state->scroll_offset.y); |
1812 | |||
1813 | harbaum | 103 | map_limit_scroll(map, CANVAS_UNIT_METER, |
1814 | &map->state->scroll_offset.x, &map->state->scroll_offset.y); | ||
1815 | canvas_scroll_to(map->canvas, CANVAS_UNIT_METER, | ||
1816 | map->state->scroll_offset.x, map->state->scroll_offset.y); | ||
1817 | harbaum | 1 | } |
1818 | |||
1819 | |||
1820 | harbaum | 103 | void map_clear(appdata_t *appdata, gint group_mask) { |
1821 | harbaum | 1 | map_t *map = appdata->map; |
1822 | |||
1823 | printf("freeing map contents\n"); | ||
1824 | |||
1825 | map_free_map_item_chains(appdata); | ||
1826 | |||
1827 | /* remove a possibly existing highlight */ | ||
1828 | map_item_deselect(appdata); | ||
1829 | |||
1830 | harbaum | 103 | canvas_erase(map->canvas, group_mask); |
1831 | harbaum | 1 | } |
1832 | |||
1833 | void map_paint(appdata_t *appdata) { | ||
1834 | map_t *map = appdata->map; | ||
1835 | |||
1836 | harbaum | 78 | /* user may have changed antialias settings */ |
1837 | harbaum | 103 | canvas_set_antialias(map->canvas, !appdata->settings->no_antialias); |
1838 | harbaum | 24 | |
1839 | harbaum | 1 | josm_elemstyles_colorize_world(map->style, appdata->osm); |
1840 | map_draw(map, appdata->osm); | ||
1841 | } | ||
1842 | |||
1843 | /* called from several icons like e.g. "node_add" */ | ||
1844 | void map_action_set(appdata_t *appdata, map_action_t action) { | ||
1845 | printf("map action set to %d\n", action); | ||
1846 | |||
1847 | appdata->map->action.type = action; | ||
1848 | |||
1849 | /* enable/disable ok/cancel buttons */ | ||
1850 | // MAP_ACTION_IDLE=0, NODE_ADD, BG_ADJUST, WAY_ADD, WAY_NODE_ADD, WAY_CUT | ||
1851 | const gboolean ok_state[] = { FALSE, FALSE, TRUE, FALSE, FALSE, FALSE }; | ||
1852 | const gboolean cancel_state[] = { FALSE, TRUE, TRUE, TRUE, TRUE, TRUE }; | ||
1853 | |||
1854 | g_assert(MAP_ACTION_NUM == sizeof(ok_state)/sizeof(gboolean)); | ||
1855 | g_assert(action < sizeof(ok_state)/sizeof(gboolean)); | ||
1856 | |||
1857 | icon_bar_map_cancel_ok(appdata, cancel_state[action], ok_state[action]); | ||
1858 | |||
1859 | switch(action) { | ||
1860 | case MAP_ACTION_BG_ADJUST: | ||
1861 | /* an existing selection only causes confusion ... */ | ||
1862 | map_item_deselect(appdata); | ||
1863 | break; | ||
1864 | |||
1865 | case MAP_ACTION_WAY_ADD: | ||
1866 | printf("starting new way\n"); | ||
1867 | |||
1868 | /* remember if there was a way selected */ | ||
1869 | way_t *way_sel = NULL; | ||
1870 | harbaum | 154 | if(appdata->map->selected.object.type == WAY) |
1871 | way_sel = appdata->map->selected.object.way; | ||
1872 | harbaum | 1 | |
1873 | map_item_deselect(appdata); | ||
1874 | map_edit_way_add_begin(appdata->map, way_sel); | ||
1875 | break; | ||
1876 | |||
1877 | case MAP_ACTION_NODE_ADD: | ||
1878 | map_item_deselect(appdata); | ||
1879 | break; | ||
1880 | |||
1881 | default: | ||
1882 | break; | ||
1883 | } | ||
1884 | |||
1885 | icon_bar_map_action_idle(appdata, action == MAP_ACTION_IDLE); | ||
1886 | gtk_widget_set_sensitive(appdata->menu_item_wms_adjust, | ||
1887 | action == MAP_ACTION_IDLE); | ||
1888 | |||
1889 | const char *str_state[] = { | ||
1890 | NULL, | ||
1891 | _("Place a node"), | ||
1892 | _("Adjust background image position"), | ||
1893 | _("Place first node of new way"), | ||
1894 | _("Place node on selected way"), | ||
1895 | _("Select segment to cut way"), | ||
1896 | }; | ||
1897 | |||
1898 | g_assert(MAP_ACTION_NUM == sizeof(str_state)/sizeof(char*)); | ||
1899 | |||
1900 | statusbar_set(appdata, str_state[action], FALSE); | ||
1901 | } | ||
1902 | |||
1903 | |||
1904 | void map_action_cancel(appdata_t *appdata) { | ||
1905 | map_t *map = appdata->map; | ||
1906 | |||
1907 | switch(map->action.type) { | ||
1908 | case MAP_ACTION_WAY_ADD: | ||
1909 | map_edit_way_add_cancel(map); | ||
1910 | break; | ||
1911 | |||
1912 | case MAP_ACTION_BG_ADJUST: | ||
1913 | /* undo all changes to bg_offset */ | ||
1914 | map->bg.offset.x = appdata->project->wms_offset.x; | ||
1915 | map->bg.offset.y = appdata->project->wms_offset.y; | ||
1916 | |||
1917 | gint x = appdata->osm->bounds->min.x + map->bg.offset.x; | ||
1918 | gint y = appdata->osm->bounds->min.y + map->bg.offset.y; | ||
1919 | canvas_image_move(map->bg.item, x, y, map->bg.scale.x, map->bg.scale.y); | ||
1920 | break; | ||
1921 | |||
1922 | default: | ||
1923 | break; | ||
1924 | } | ||
1925 | |||
1926 | map_action_set(appdata, MAP_ACTION_IDLE); | ||
1927 | } | ||
1928 | |||
1929 | void map_action_ok(appdata_t *appdata) { | ||
1930 | map_t *map = appdata->map; | ||
1931 | |||
1932 | /* reset action now as this erases the statusbar and some */ | ||
1933 | /* of the actions may set it */ | ||
1934 | map_action_t type = map->action.type; | ||
1935 | map_action_set(appdata, MAP_ACTION_IDLE); | ||
1936 | |||
1937 | switch(type) { | ||
1938 | case MAP_ACTION_WAY_ADD: | ||
1939 | map_edit_way_add_ok(map); | ||
1940 | break; | ||
1941 | |||
1942 | case MAP_ACTION_BG_ADJUST: | ||
1943 | /* save changes to bg_offset in project */ | ||
1944 | appdata->project->wms_offset.x = map->bg.offset.x; | ||
1945 | appdata->project->wms_offset.y = map->bg.offset.y; | ||
1946 | appdata->project->dirty = TRUE; | ||
1947 | break; | ||
1948 | |||
1949 | default: | ||
1950 | break; | ||
1951 | } | ||
1952 | } | ||
1953 | |||
1954 | /* called from icon "trash" */ | ||
1955 | void map_delete_selected(appdata_t *appdata) { | ||
1956 | map_t *map = appdata->map; | ||
1957 | |||
1958 | if(!yes_no_f(GTK_WIDGET(appdata->window), | ||
1959 | appdata, MISC_AGAIN_ID_DELETE, MISC_AGAIN_FLAG_DONT_SAVE_NO, | ||
1960 | _("Delete selected object?"), | ||
1961 | _("Do you really want to delete the selected object?"))) | ||
1962 | return; | ||
1963 | |||
1964 | /* work on local copy since de-selecting destroys the selection */ | ||
1965 | map_item_t item = map->selected; | ||
1966 | |||
1967 | /* deleting the selected item de-selects it ... */ | ||
1968 | map_item_deselect(appdata); | ||
1969 | |||
1970 | harbaum | 155 | undo_remember_delete(appdata, &item.object); |
1971 | harbaum | 54 | |
1972 | harbaum | 154 | switch(item.object.type) { |
1973 | case NODE: | ||
1974 | printf("request to delete node #%ld\n", item.object.node->id); | ||
1975 | harbaum | 1 | |
1976 | /* check if this node is part of a way with two nodes only. */ | ||
1977 | /* we cannot delete this as this would also delete the way */ | ||
1978 | harbaum | 154 | way_chain_t *way_chain = osm_node_to_way(appdata->osm, item.object.node); |
1979 | harbaum | 1 | if(way_chain) { |
1980 | gboolean short_way = FALSE; | ||
1981 | |||
1982 | /* free the chain of ways */ | ||
1983 | while(way_chain && !short_way) { | ||
1984 | way_chain_t *next = way_chain->next; | ||
1985 | |||
1986 | if(osm_way_number_of_nodes(way_chain->way) <= 2) | ||
1987 | short_way = TRUE; | ||
1988 | |||
1989 | g_free(way_chain); | ||
1990 | way_chain = next; | ||
1991 | } | ||
1992 | |||
1993 | if(short_way) { | ||
1994 | if(!yes_no_f(GTK_WIDGET(appdata->window), NULL, 0, 0, | ||
1995 | _("Delete node in short way(s)?"), | ||
1996 | _("Deleting this node will also delete one or more ways " | ||
1997 | "since they'll contain only one node afterwards. " | ||
1998 | "Do you really want this?"))) | ||
1999 | return; | ||
2000 | } | ||
2001 | } | ||
2002 | |||
2003 | /* remove it visually from the screen */ | ||
2004 | harbaum | 154 | map_item_chain_destroy(&item.object.node->map_item_chain); |
2005 | harbaum | 1 | |
2006 | /* and mark it "deleted" in the database */ | ||
2007 | harbaum | 154 | osm_node_remove_from_relation(appdata->osm, item.object.node); |
2008 | harbaum | 1 | way_chain_t *chain = osm_node_delete(appdata->osm, |
2009 | harbaum | 154 | &appdata->icon, item.object.node, FALSE, TRUE); |
2010 | harbaum | 1 | |
2011 | /* redraw all affected ways */ | ||
2012 | while(chain) { | ||
2013 | way_chain_t *next = chain->next; | ||
2014 | |||
2015 | if(osm_way_number_of_nodes(chain->way) == 1) { | ||
2016 | /* this way now only contains one node and thus isn't a valid */ | ||
2017 | /* way anymore. So it'll also get deleted (which in turn may */ | ||
2018 | /* cause other nodes to be deleted as well) */ | ||
2019 | map_way_delete(appdata, chain->way); | ||
2020 | } else { | ||
2021 | map_item_t item; | ||
2022 | harbaum | 154 | item.object.type = WAY; |
2023 | item.object.way = chain->way; | ||
2024 | harbaum | 1 | map_item_redraw(appdata, &item); |
2025 | } | ||
2026 | |||
2027 | g_free(chain); | ||
2028 | |||
2029 | chain = next; | ||
2030 | } | ||
2031 | |||
2032 | break; | ||
2033 | |||
2034 | harbaum | 154 | case WAY: |
2035 | printf("request to delete way #%ld\n", item.object.way->id); | ||
2036 | map_way_delete(appdata, item.object.way); | ||
2037 | harbaum | 1 | break; |
2038 | |||
2039 | default: | ||
2040 | harbaum | 154 | g_assert((item.object.type == NODE) || |
2041 | (item.object.type == WAY)); | ||
2042 | harbaum | 1 | break; |
2043 | } | ||
2044 | } | ||
2045 | |||
2046 | /* ----------------------- track related stuff ----------------------- */ | ||
2047 | |||
2048 | void map_track_draw_seg(map_t *map, track_seg_t *seg) { | ||
2049 | /* a track_seg needs at least 2 points to be drawn */ | ||
2050 | guint pnum = track_seg_points(seg); | ||
2051 | printf("seg of length %d\n", pnum); | ||
2052 | |||
2053 | if(pnum == 1) { | ||
2054 | g_assert(!seg->item); | ||
2055 | |||
2056 | harbaum | 103 | seg->item = canvas_circle_new(map->canvas, CANVAS_GROUP_TRACK, |
2057 | harbaum | 1 | seg->track_point->lpos.x, seg->track_point->lpos.y, |
2058 | map->style->track.width/2.0, 0, map->style->track.color, NO_COLOR); | ||
2059 | } | ||
2060 | |||
2061 | if(pnum > 1) { | ||
2062 | |||
2063 | /* allocate space for nodes */ | ||
2064 | canvas_points_t *points = canvas_points_new(pnum); | ||
2065 | |||
2066 | int point = 0; | ||
2067 | track_point_t *track_point = seg->track_point; | ||
2068 | while(track_point) { | ||
2069 | points->coords[point++] = track_point->lpos.x; | ||
2070 | points->coords[point++] = track_point->lpos.y; | ||
2071 | track_point = track_point->next; | ||
2072 | } | ||
2073 | |||
2074 | /* there may be a circle (one point line) */ | ||
2075 | if(seg->item) | ||
2076 | canvas_item_destroy(seg->item); | ||
2077 | |||
2078 | harbaum | 103 | seg->item = canvas_polyline_new(map->canvas, CANVAS_GROUP_TRACK, |
2079 | harbaum | 1 | points, map->style->track.width, map->style->track.color); |
2080 | |||
2081 | canvas_points_free(points); | ||
2082 | } | ||
2083 | } | ||
2084 | |||
2085 | void map_track_update_seg(map_t *map, track_seg_t *seg) { | ||
2086 | /* a track_seg needs at least 2 points to be drawn */ | ||
2087 | guint pnum = track_seg_points(seg); | ||
2088 | printf("seg of length %d\n", pnum); | ||
2089 | |||
2090 | if(pnum > 1) { | ||
2091 | |||
2092 | /* allocate space for nodes */ | ||
2093 | canvas_points_t *points = canvas_points_new(pnum); | ||
2094 | |||
2095 | int point = 0; | ||
2096 | track_point_t *track_point = seg->track_point; | ||
2097 | while(track_point) { | ||
2098 | canvas_point_set_pos(points, point++, &track_point->lpos); | ||
2099 | track_point = track_point->next; | ||
2100 | } | ||
2101 | |||
2102 | g_assert(seg->item); | ||
2103 | canvas_item_set_points(seg->item, points); | ||
2104 | canvas_points_free(points); | ||
2105 | } | ||
2106 | } | ||
2107 | |||
2108 | void map_track_draw(map_t *map, track_t *track) { | ||
2109 | track_seg_t *seg = track->track_seg; | ||
2110 | |||
2111 | /* draw all segments */ | ||
2112 | while(seg) { | ||
2113 | map_track_draw_seg(map, seg); | ||
2114 | seg = seg->next; | ||
2115 | } | ||
2116 | } | ||
2117 | |||
2118 | void map_track_remove(appdata_t *appdata) { | ||
2119 | track_t *track = appdata->track.track; | ||
2120 | |||
2121 | printf("removing track\n"); | ||
2122 | |||
2123 | g_assert(track); | ||
2124 | |||
2125 | /* remove all segments */ | ||
2126 | track_seg_t *seg = track->track_seg; | ||
2127 | while(seg) { | ||
2128 | if(seg->item) { | ||
2129 | canvas_item_destroy(seg->item); | ||
2130 | seg->item = NULL; | ||
2131 | } | ||
2132 | |||
2133 | seg = seg->next; | ||
2134 | } | ||
2135 | } | ||
2136 | |||
2137 | void map_track_pos(appdata_t *appdata, lpos_t *lpos) { | ||
2138 | if(appdata->track.gps_item) { | ||
2139 | canvas_item_destroy(appdata->track.gps_item); | ||
2140 | appdata->track.gps_item = NULL; | ||
2141 | } | ||
2142 | |||
2143 | if(lpos) | ||
2144 | harbaum | 103 | appdata->track.gps_item = |
2145 | canvas_circle_new(appdata->map->canvas, CANVAS_GROUP_GPS, | ||
2146 | harbaum | 1 | lpos->x, lpos->y, appdata->map->style->track.width/2.0, 0, |
2147 | harbaum | 22 | appdata->map->style->track.gps_color, NO_COLOR); |
2148 | harbaum | 1 | } |
2149 | |||
2150 | /* ------------------- map background ------------------ */ | ||
2151 | |||
2152 | void map_remove_bg_image(map_t *map) { | ||
2153 | if(!map) return; | ||
2154 | |||
2155 | if(map->bg.item) { | ||
2156 | canvas_item_destroy(map->bg.item); | ||
2157 | map->bg.item = NULL; | ||
2158 | } | ||
2159 | } | ||
2160 | |||
2161 | static gint map_bg_item_destroy_event(GtkWidget *widget, gpointer data) { | ||
2162 | map_t *map = (map_t*)data; | ||
2163 | |||
2164 | /* destroying background item */ | ||
2165 | |||
2166 | map->bg.item = NULL; | ||
2167 | if(map->bg.pix) { | ||
2168 | printf("destroying background item\n"); | ||
2169 | gdk_pixbuf_unref(map->bg.pix); | ||
2170 | map->bg.pix = NULL; | ||
2171 | } | ||
2172 | return FALSE; | ||
2173 | } | ||
2174 | |||
2175 | void map_set_bg_image(map_t *map, char *filename) { | ||
2176 | bounds_t *bounds = map->appdata->osm->bounds; | ||
2177 | |||
2178 | map_remove_bg_image(map); | ||
2179 | |||
2180 | map->bg.pix = gdk_pixbuf_new_from_file(filename, NULL); | ||
2181 | |||
2182 | /* calculate required scale factor */ | ||
2183 | map->bg.scale.x = (float)(bounds->max.x - bounds->min.x)/ | ||
2184 | (float)gdk_pixbuf_get_width(map->bg.pix); | ||
2185 | map->bg.scale.y = (float)(bounds->max.y - bounds->min.y)/ | ||
2186 | (float)gdk_pixbuf_get_height(map->bg.pix); | ||
2187 | |||
2188 | harbaum | 103 | map->bg.item = canvas_image_new(map->canvas, CANVAS_GROUP_BG, map->bg.pix, |
2189 | harbaum | 1 | bounds->min.x, bounds->min.y, map->bg.scale.x, map->bg.scale.y); |
2190 | |||
2191 | canvas_item_destroy_connect(map->bg.item, | ||
2192 | G_CALLBACK(map_bg_item_destroy_event), map); | ||
2193 | } | ||
2194 | |||
2195 | |||
2196 | /* -------- hide and show objects (for performance reasons) ------- */ | ||
2197 | |||
2198 | void map_hide_selected(appdata_t *appdata) { | ||
2199 | map_t *map = appdata->map; | ||
2200 | if(!map) return; | ||
2201 | |||
2202 | harbaum | 154 | if(map->selected.object.type != WAY) { |
2203 | harbaum | 1 | printf("selected item is not a way\n"); |
2204 | return; | ||
2205 | } | ||
2206 | |||
2207 | harbaum | 154 | way_t *way = map->selected.object.way; |
2208 | harbaum | 1 | printf("hiding way #%ld\n", way->id); |
2209 | |||
2210 | map_item_deselect(appdata); | ||
2211 | way->flags |= OSM_FLAG_HIDDEN; | ||
2212 | map_item_chain_destroy(&way->map_item_chain); | ||
2213 | |||
2214 | gtk_widget_set_sensitive(appdata->menu_item_map_show_all, TRUE); | ||
2215 | } | ||
2216 | |||
2217 | void map_show_all(appdata_t *appdata) { | ||
2218 | map_t *map = appdata->map; | ||
2219 | if(!map) return; | ||
2220 | |||
2221 | way_t *way = appdata->osm->way; | ||
2222 | while(way) { | ||
2223 | if(way->flags & OSM_FLAG_HIDDEN) { | ||
2224 | way->flags &= ~OSM_FLAG_HIDDEN; | ||
2225 | map_way_draw(map, way); | ||
2226 | } | ||
2227 | |||
2228 | way = way->next; | ||
2229 | } | ||
2230 | |||
2231 | gtk_widget_set_sensitive(appdata->menu_item_map_show_all, FALSE); | ||
2232 | } | ||
2233 | harbaum | 153 | |
2234 | achadwick | 13 | // vim:et:ts=8:sw=2:sts=2:ai |