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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 <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 | switch(map_item->object.type) { |
34 | case NODE: |
35 | item_str = "Node"; |
36 | id = map_item->object.node->id; |
37 | tag = map_item->object.node->tag; |
38 | break; |
39 | |
40 | case WAY: |
41 | item_str = "Way"; |
42 | id = map_item->object.way->id; |
43 | tag = map_item->object.way->tag; |
44 | break; |
45 | |
46 | case RELATION: |
47 | item_str = "Relation"; |
48 | id = map_item->object.relation->id; |
49 | tag = map_item->object.relation->tag; |
50 | break; |
51 | |
52 | default: |
53 | break; |
54 | } |
55 | |
56 | gboolean collision = FALSE; |
57 | tag_t *tags = tag; |
58 | while(tag) { |
59 | if(!collision && info_tag_key_collision(tags, tag)) |
60 | collision = TRUE; |
61 | tag = tag->next; |
62 | } |
63 | |
64 | str = osm_object_get_speaking_name(&map_item->object); |
65 | statusbar_set(map->appdata, str, collision); |
66 | g_free(str); |
67 | } |
68 | |
69 | void map_outside_error(appdata_t *appdata) { |
70 | errorf(GTK_WIDGET(appdata->window), |
71 | _("Items must not be placed outside the working area!")); |
72 | } |
73 | |
74 | void map_item_chain_destroy(map_item_chain_t **chainP) { |
75 | if(!*chainP) { |
76 | printf("nothing to destroy!\n"); |
77 | return; |
78 | } |
79 | |
80 | #ifdef DESTROY_WAIT_FOR_GTK |
81 | map_item_chain_t *chain = *chainP; |
82 | while(chain) { |
83 | map_item_chain_t *next = chain->next; |
84 | canvas_item_destroy(chain->map_item->item); |
85 | chain = next; |
86 | } |
87 | |
88 | /* wait until gtks event handling has actually destroyed this item */ |
89 | printf("waiting for item destruction "); |
90 | while(gtk_events_pending() || *chainP) { |
91 | putchar('.'); |
92 | gtk_main_iteration(); |
93 | } |
94 | printf(" ok\n"); |
95 | |
96 | /* the callback routine connected to this item should have been */ |
97 | /* called by now and it has set the chain to NULL */ |
98 | |
99 | #else |
100 | map_item_chain_t *chain = *chainP; |
101 | while(chain) { |
102 | map_item_chain_t *next = chain->next; |
103 | canvas_item_destroy(chain->map_item->item); |
104 | |
105 | g_free(chain); |
106 | chain = next; |
107 | } |
108 | *chainP = NULL; |
109 | #endif |
110 | } |
111 | |
112 | static void map_node_select(appdata_t *appdata, node_t *node) { |
113 | map_t *map = appdata->map; |
114 | map_item_t *map_item = &map->selected; |
115 | |
116 | g_assert(!map->highlight); |
117 | |
118 | map_item->object.type = NODE; |
119 | map_item->object.node = node; |
120 | map_item->highlight = FALSE; |
121 | |
122 | /* node may not have any visible representation at all */ |
123 | if(node->map_item_chain) |
124 | map_item->item = node->map_item_chain->map_item->item; |
125 | else |
126 | map_item->item = NULL; |
127 | |
128 | map_statusbar(map, map_item); |
129 | icon_bar_map_item_selected(appdata, map_item, TRUE); |
130 | |
131 | /* highlight node */ |
132 | gint x = map_item->object.node->lpos.x, y = map_item->object.node->lpos.y; |
133 | |
134 | /* create a copy of this map item and mark it as being a highlight */ |
135 | map_item_t *new_map_item = g_new0(map_item_t, 1); |
136 | memcpy(new_map_item, map_item, sizeof(map_item_t)); |
137 | new_map_item->highlight = TRUE; |
138 | |
139 | float radius = map->style->highlight.width + map->style->node.radius; |
140 | if(!node->ways) radius += map->style->node.border_radius; |
141 | if(node->icon_buf && map->style->icon.enable && |
142 | !appdata->settings->no_icons) { |
143 | gint w = gdk_pixbuf_get_width(map_item->object.node->icon_buf); |
144 | gint h = gdk_pixbuf_get_height(map_item->object.node->icon_buf); |
145 | /* icons are technically square, so a radius slightly bigger */ |
146 | /* than sqrt(2)*MAX(w,h) should fit nicely */ |
147 | radius = 0.75 * map->style->icon.scale * ((w>h)?w:h); |
148 | } |
149 | |
150 | radius *= map->state->detail; |
151 | map_hl_circle_new(map, CANVAS_GROUP_NODES_HL, new_map_item, |
152 | x, y, radius, map->style->highlight.color); |
153 | |
154 | if(!map_item->item) { |
155 | /* and draw a fake node */ |
156 | new_map_item = g_new0(map_item_t, 1); |
157 | memcpy(new_map_item, map_item, sizeof(map_item_t)); |
158 | new_map_item->highlight = TRUE; |
159 | map_hl_circle_new(map, CANVAS_GROUP_NODES_IHL, new_map_item, |
160 | x, y, map->style->node.radius, |
161 | map->style->highlight.node_color); |
162 | } |
163 | } |
164 | |
165 | void map_way_select(appdata_t *appdata, way_t *way) { |
166 | map_t *map = appdata->map; |
167 | map_item_t *map_item = &map->selected; |
168 | |
169 | g_assert(!map->highlight); |
170 | |
171 | map_item->object.type = WAY; |
172 | map_item->object.way = way; |
173 | map_item->highlight = FALSE; |
174 | map_item->item = way->map_item_chain->map_item->item; |
175 | |
176 | map_statusbar(map, map_item); |
177 | icon_bar_map_item_selected(appdata, map_item, TRUE); |
178 | gtk_widget_set_sensitive(appdata->menu_item_map_hide_sel, TRUE); |
179 | |
180 | gint arrow_width = ((map_item->object.way->draw.flags & OSM_DRAW_FLAG_BG)? |
181 | map->style->highlight.width + map_item->object.way->draw.bg.width/2: |
182 | map->style->highlight.width + map_item->object.way->draw.width/2) |
183 | * map->state->detail; |
184 | |
185 | node_chain_t *node_chain = map_item->object.way->node_chain; |
186 | node_t *last = NULL; |
187 | while(node_chain) { |
188 | map_item_t item; |
189 | item.object.type = NODE; |
190 | item.object.node = node_chain->node; |
191 | |
192 | /* draw an arrow between every two nodes */ |
193 | if(last) { |
194 | /* create a new map item for every arrow */ |
195 | map_item_t *new_map_item = g_new0(map_item_t, 1); |
196 | new_map_item->object.type = WAY; |
197 | new_map_item->object.way = way; |
198 | new_map_item->highlight = TRUE; |
199 | |
200 | struct { float x, y;} center, diff; |
201 | center.x = (last->lpos.x + node_chain->node->lpos.x)/2; |
202 | center.y = (last->lpos.y + node_chain->node->lpos.y)/2; |
203 | diff.x = node_chain->node->lpos.x - last->lpos.x; |
204 | diff.y = node_chain->node->lpos.y - last->lpos.y; |
205 | |
206 | /* only draw arrow if there's sufficient space */ |
207 | /* TODO: what if there's not enough space anywhere? */ |
208 | float len = sqrt(pow(diff.x, 2)+pow(diff.y, 2)); |
209 | if(len > map->style->highlight.arrow_limit*arrow_width) { |
210 | len /= arrow_width; |
211 | diff.x = diff.x / len; |
212 | diff.y = diff.y / len; |
213 | |
214 | canvas_points_t *points = canvas_points_new(4); |
215 | points->coords[2*0+0] = points->coords[2*3+0] = center.x + diff.x; |
216 | points->coords[2*0+1] = points->coords[2*3+1] = center.y + diff.y; |
217 | points->coords[2*1+0] = center.x + diff.y - diff.x; |
218 | points->coords[2*1+1] = center.y - diff.x - diff.y; |
219 | points->coords[2*2+0] = center.x - diff.y - diff.x; |
220 | points->coords[2*2+1] = center.y + diff.x - diff.y; |
221 | |
222 | map_hl_polygon_new(map, CANVAS_GROUP_WAYS_DIR, new_map_item, |
223 | points, map->style->highlight.arrow_color); |
224 | |
225 | canvas_points_free(points); |
226 | } |
227 | } |
228 | |
229 | if(!map_hl_item_is_highlighted(map, &item)) { |
230 | |
231 | /* create a new map item for every node */ |
232 | map_item_t *new_map_item = g_new0(map_item_t, 1); |
233 | new_map_item->object.type = NODE; |
234 | new_map_item->object.node = node_chain->node; |
235 | new_map_item->highlight = TRUE; |
236 | |
237 | gint x = node_chain->node->lpos.x; |
238 | gint y = node_chain->node->lpos.y; |
239 | |
240 | map_hl_circle_new(map, CANVAS_GROUP_NODES_IHL, new_map_item, |
241 | x, y, map->style->node.radius * map->state->detail, |
242 | map->style->highlight.node_color); |
243 | } |
244 | |
245 | last = node_chain->node; |
246 | node_chain = node_chain->next; |
247 | } |
248 | |
249 | /* a way needs at least 2 points to be drawn */ |
250 | guint nodes = osm_way_number_of_nodes(way); |
251 | if(nodes > 1) { |
252 | |
253 | /* allocate space for nodes */ |
254 | canvas_points_t *points = canvas_points_new(nodes); |
255 | |
256 | int node = 0; |
257 | node_chain = map_item->object.way->node_chain; |
258 | while(node_chain) { |
259 | canvas_point_set_pos(points, node++, &node_chain->node->lpos); |
260 | node_chain = node_chain->next; |
261 | } |
262 | |
263 | /* create a copy of this map item and mark it as being a highlight */ |
264 | map_item_t *new_map_item = g_new0(map_item_t, 1); |
265 | memcpy(new_map_item, map_item, sizeof(map_item_t)); |
266 | new_map_item->highlight = TRUE; |
267 | |
268 | map_hl_polyline_new(map, CANVAS_GROUP_WAYS_HL, new_map_item, points, |
269 | ((map_item->object.way->draw.flags & OSM_DRAW_FLAG_BG)? |
270 | 2*map->style->highlight.width + map_item->object.way->draw.bg.width: |
271 | 2*map->style->highlight.width + map_item->object.way->draw.width) |
272 | * map->state->detail, map->style->highlight.color); |
273 | |
274 | canvas_points_free(points); |
275 | } |
276 | } |
277 | |
278 | void map_relation_select(appdata_t *appdata, relation_t *relation) { |
279 | map_t *map = appdata->map; |
280 | |
281 | printf("highlighting relation "ITEM_ID_FORMAT"\n", relation->id); |
282 | |
283 | g_assert(!map->highlight); |
284 | map_highlight_t **hl = &map->highlight; |
285 | |
286 | map_item_t *map_item = &map->selected; |
287 | map_item->object.type = RELATION; |
288 | map_item->object.relation = relation; |
289 | map_item->highlight = FALSE; |
290 | map_item->item = NULL; |
291 | |
292 | map_statusbar(map, map_item); |
293 | icon_bar_map_item_selected(appdata, map_item, TRUE); |
294 | |
295 | /* process all members */ |
296 | member_t *member = relation->member; |
297 | while(member) { |
298 | canvas_item_t *item = NULL; |
299 | |
300 | switch(member->object.type) { |
301 | |
302 | case NODE: { |
303 | node_t *node = member->object.node; |
304 | printf(" -> node "ITEM_ID_FORMAT"\n", node->id); |
305 | |
306 | item = canvas_circle_new(map->canvas, CANVAS_GROUP_NODES_HL, |
307 | node->lpos.x, node->lpos.y, |
308 | map->style->highlight.width + map->style->node.radius, |
309 | 0, map->style->highlight.color, NO_COLOR); |
310 | } break; |
311 | |
312 | case WAY: { |
313 | way_t *way = member->object.way; |
314 | /* a way needs at least 2 points to be drawn */ |
315 | guint nodes = osm_way_number_of_nodes(way); |
316 | if(nodes > 1) { |
317 | |
318 | /* allocate space for nodes */ |
319 | canvas_points_t *points = canvas_points_new(nodes); |
320 | |
321 | int node = 0; |
322 | node_chain_t *node_chain = way->node_chain; |
323 | while(node_chain) { |
324 | canvas_point_set_pos(points, node++, &node_chain->node->lpos); |
325 | node_chain = node_chain->next; |
326 | } |
327 | |
328 | if(way->draw.flags & OSM_DRAW_FLAG_AREA) |
329 | item = canvas_polygon_new(map->canvas, CANVAS_GROUP_WAYS_HL, points, 0, 0, |
330 | map->style->highlight.color); |
331 | else |
332 | item = canvas_polyline_new(map->canvas, CANVAS_GROUP_WAYS_HL, points, |
333 | (way->draw.flags & OSM_DRAW_FLAG_BG)? |
334 | 2*map->style->highlight.width + way->draw.bg.width: |
335 | 2*map->style->highlight.width + way->draw.width, |
336 | map->style->highlight.color); |
337 | |
338 | canvas_points_free(points); |
339 | } } break; |
340 | |
341 | default: |
342 | break; |
343 | } |
344 | |
345 | /* attach item to item chain */ |
346 | if(item) { |
347 | *hl = g_new0(map_highlight_t, 1); |
348 | (*hl)->item = item; |
349 | hl = &(*hl)->next; |
350 | } |
351 | |
352 | member = member->next; |
353 | } |
354 | } |
355 | |
356 | static void map_object_select(appdata_t *appdata, object_t *object) { |
357 | switch(object->type) { |
358 | case NODE: |
359 | map_node_select(appdata, object->node); |
360 | break; |
361 | case WAY: |
362 | map_way_select(appdata, object->way); |
363 | break; |
364 | case RELATION: |
365 | map_relation_select(appdata, object->relation); |
366 | break; |
367 | default: |
368 | g_assert((object->type == NODE)||(object->type == RELATION)|| |
369 | (object->type == WAY)); |
370 | break; |
371 | } |
372 | } |
373 | |
374 | void map_item_deselect(appdata_t *appdata) { |
375 | |
376 | /* save tags for "last" function in info dialog */ |
377 | if(appdata->map->selected.object.type == NODE) { |
378 | if(appdata->map->last_node_tags) |
379 | osm_tags_free(appdata->map->last_node_tags); |
380 | |
381 | appdata->map->last_node_tags = |
382 | osm_tags_copy(appdata->map->selected.object.node->tag); |
383 | } else if(appdata->map->selected.object.type == WAY) { |
384 | if(appdata->map->last_way_tags) |
385 | osm_tags_free(appdata->map->last_way_tags); |
386 | |
387 | appdata->map->last_way_tags = |
388 | osm_tags_copy(appdata->map->selected.object.way->tag); |
389 | } |
390 | |
391 | /* remove statusbar message */ |
392 | statusbar_set(appdata, NULL, FALSE); |
393 | |
394 | /* disable/enable icons in icon bar */ |
395 | icon_bar_map_item_selected(appdata, NULL, FALSE); |
396 | gtk_widget_set_sensitive(appdata->menu_item_map_hide_sel, FALSE); |
397 | |
398 | /* remove highlight */ |
399 | map_hl_remove(appdata); |
400 | |
401 | /* forget about selection */ |
402 | appdata->map->selected.object.type = ILLEGAL; |
403 | } |
404 | |
405 | /* called whenever a map item is to be destroyed */ |
406 | static gint map_item_destroy_event(GtkWidget *widget, gpointer data) { |
407 | map_item_t *map_item = (map_item_t*)data; |
408 | |
409 | // printf("destroying map_item @ %p\n", map_item); |
410 | |
411 | #ifdef DESTROY_WAIT_FOR_GTK |
412 | /* remove item from nodes/ways map_item_chain */ |
413 | map_item_chain_t **chain = NULL; |
414 | if(map_item->object.type == NODE) |
415 | chain = &map_item->object.node->map_item_chain; |
416 | else if(map_item->object.type == WAY) |
417 | chain = &map_item->object.way->map_item_chain; |
418 | |
419 | /* there must be a chain with content, otherwise things are broken */ |
420 | g_assert(chain); |
421 | g_assert(*chain); |
422 | |
423 | /* search current map_item, ... */ |
424 | while(*chain && (*chain)->map_item != map_item) |
425 | chain = &(*chain)->next; |
426 | |
427 | g_assert(*chain); |
428 | |
429 | /* ... remove it from chain and free it */ |
430 | map_item_chain_t *tmp = *chain; |
431 | *chain = (*chain)->next; |
432 | |
433 | g_free(tmp); |
434 | #endif |
435 | |
436 | g_free(map_item); |
437 | return FALSE; |
438 | } |
439 | |
440 | static canvas_item_t *map_node_new(map_t *map, node_t *node, gint radius, |
441 | gint width, canvas_color_t fill, canvas_color_t border) { |
442 | |
443 | map_item_t *map_item = g_new0(map_item_t, 1); |
444 | map_item->object.type = NODE; |
445 | map_item->object.node = node; |
446 | |
447 | if(!node->icon_buf || !map->style->icon.enable || |
448 | map->appdata->settings->no_icons) |
449 | map_item->item = canvas_circle_new(map->canvas, CANVAS_GROUP_NODES, |
450 | node->lpos.x, node->lpos.y, radius, width, fill, border); |
451 | else |
452 | map_item->item = canvas_image_new(map->canvas, CANVAS_GROUP_NODES, |
453 | node->icon_buf, |
454 | node->lpos.x - map->style->icon.scale/2 * map->state->detail * |
455 | gdk_pixbuf_get_width(node->icon_buf), |
456 | node->lpos.y - map->style->icon.scale/2 * map->state->detail * |
457 | gdk_pixbuf_get_height(node->icon_buf), |
458 | map->state->detail * map->style->icon.scale, |
459 | map->state->detail * map->style->icon.scale); |
460 | |
461 | canvas_item_set_zoom_max(map_item->item, |
462 | node->zoom_max / (2 * map->state->detail)); |
463 | |
464 | /* attach map_item to nodes map_item_chain */ |
465 | map_item_chain_t **chain = &node->map_item_chain; |
466 | while(*chain) chain = &(*chain)->next; |
467 | *chain = g_new0(map_item_chain_t, 1); |
468 | (*chain)->map_item = map_item; |
469 | |
470 | canvas_item_set_user_data(map_item->item, map_item); |
471 | |
472 | canvas_item_destroy_connect(map_item->item, |
473 | G_CALLBACK(map_item_destroy_event), map_item); |
474 | |
475 | return map_item->item; |
476 | } |
477 | |
478 | /* in the rare case that a way consists of only one node, it is */ |
479 | /* drawn as a circle. This e.g. happens when drawing a new way */ |
480 | static canvas_item_t *map_way_single_new(map_t *map, way_t *way, gint radius, |
481 | gint width, canvas_color_t fill, canvas_color_t border) { |
482 | |
483 | map_item_t *map_item = g_new0(map_item_t, 1); |
484 | map_item->object.type = WAY; |
485 | map_item->object.way = way; |
486 | map_item->item = canvas_circle_new(map->canvas, CANVAS_GROUP_WAYS, |
487 | way->node_chain->node->lpos.x, way->node_chain->node->lpos.y, |
488 | radius, width, fill, border); |
489 | |
490 | // TODO: decide: do we need canvas_item_set_zoom_max() here too? |
491 | |
492 | /* attach map_item to nodes map_item_chain */ |
493 | map_item_chain_t **chain = &way->map_item_chain; |
494 | while(*chain) chain = &(*chain)->next; |
495 | *chain = g_new0(map_item_chain_t, 1); |
496 | (*chain)->map_item = map_item; |
497 | |
498 | canvas_item_set_user_data(map_item->item, map_item); |
499 | |
500 | canvas_item_destroy_connect(map_item->item, |
501 | G_CALLBACK(map_item_destroy_event), map_item); |
502 | |
503 | return map_item->item; |
504 | } |
505 | |
506 | static canvas_item_t *map_way_new(map_t *map, canvas_group_t group, |
507 | way_t *way, canvas_points_t *points, gint width, |
508 | canvas_color_t color, canvas_color_t fill_color) { |
509 | map_item_t *map_item = g_new0(map_item_t, 1); |
510 | map_item->object.type = WAY; |
511 | map_item->object.way = way; |
512 | |
513 | if(way->draw.flags & OSM_DRAW_FLAG_AREA) { |
514 | if(map->style->area.color & 0xff) |
515 | map_item->item = canvas_polygon_new(map->canvas, group, points, |
516 | width, color, fill_color); |
517 | else |
518 | map_item->item = canvas_polyline_new(map->canvas, group, points, |
519 | width, color); |
520 | } else { |
521 | map_item->item = canvas_polyline_new(map->canvas, group, points, width, color); |
522 | } |
523 | |
524 | canvas_item_set_zoom_max(map_item->item, |
525 | way->draw.zoom_max / (2 * map->state->detail)); |
526 | |
527 | /* a ways outline itself is never dashed */ |
528 | if (group != CANVAS_GROUP_WAYS_OL) |
529 | if (way->draw.dashed) |
530 | canvas_item_set_dashed(map_item->item, width, way->draw.dash_length); |
531 | |
532 | /* attach map_item to ways map_item_chain */ |
533 | map_item_chain_t **chain = &way->map_item_chain; |
534 | while(*chain) chain = &(*chain)->next; |
535 | *chain = g_new0(map_item_chain_t, 1); |
536 | (*chain)->map_item = map_item; |
537 | |
538 | canvas_item_set_user_data(map_item->item, map_item); |
539 | |
540 | canvas_item_destroy_connect(map_item->item, |
541 | G_CALLBACK(map_item_destroy_event), map_item); |
542 | |
543 | return map_item->item; |
544 | } |
545 | |
546 | void map_show_node(map_t *map, node_t *node) { |
547 | map_node_new(map, node, map->style->node.radius, 0, |
548 | map->style->node.color, 0); |
549 | } |
550 | |
551 | void map_way_draw(map_t *map, way_t *way) { |
552 | |
553 | /* don't draw a way that's not there anymore */ |
554 | if(way->flags & (OSM_FLAG_DELETED | OSM_FLAG_HIDDEN)) |
555 | return; |
556 | |
557 | /* allocate space for nodes */ |
558 | /* a way needs at least 2 points to be drawn */ |
559 | guint nodes = osm_way_number_of_nodes(way); |
560 | if(nodes == 1) { |
561 | /* draw a single dot where this single node is */ |
562 | map_way_single_new(map, way, map->style->node.radius, 0, |
563 | map->style->node.color, 0); |
564 | } else { |
565 | canvas_points_t *points = canvas_points_new(nodes); |
566 | |
567 | int node = 0; |
568 | node_chain_t *node_chain = way->node_chain; |
569 | while(node_chain) { |
570 | canvas_point_set_pos(points, node++, &node_chain->node->lpos); |
571 | node_chain = node_chain->next; |
572 | } |
573 | |
574 | /* draw way */ |
575 | float width = way->draw.width * map->state->detail; |
576 | |
577 | if(way->draw.flags & OSM_DRAW_FLAG_AREA) { |
578 | map_way_new(map, CANVAS_GROUP_POLYGONS, way, points, |
579 | width, way->draw.color, way->draw.area.color); |
580 | } else { |
581 | |
582 | if(way->draw.flags & OSM_DRAW_FLAG_BG) { |
583 | map_way_new(map, CANVAS_GROUP_WAYS_INT, way, points, |
584 | width, way->draw.color, NO_COLOR); |
585 | |
586 | map_way_new(map, CANVAS_GROUP_WAYS_OL, way, points, |
587 | way->draw.bg.width * map->state->detail, |
588 | way->draw.bg.color, NO_COLOR); |
589 | |
590 | } else |
591 | map_way_new(map, CANVAS_GROUP_WAYS, way, points, |
592 | width, way->draw.color, NO_COLOR); |
593 | } |
594 | canvas_points_free(points); |
595 | } |
596 | } |
597 | |
598 | void map_node_draw(map_t *map, node_t *node) { |
599 | /* don't draw a node that's not there anymore */ |
600 | if(node->flags & OSM_FLAG_DELETED) |
601 | return; |
602 | |
603 | if(!node->ways) |
604 | map_node_new(map, node, |
605 | map->style->node.radius * map->state->detail, |
606 | map->style->node.border_radius * map->state->detail, |
607 | map->style->node.fill_color, |
608 | map->style->node.color); |
609 | |
610 | else if(map->style->node.show_untagged || osm_node_has_tag(node)) |
611 | map_node_new(map, node, |
612 | map->style->node.radius * map->state->detail, 0, |
613 | map->style->node.color, 0); |
614 | } |
615 | |
616 | static void map_item_draw(map_t *map, map_item_t *map_item) { |
617 | switch(map_item->object.type) { |
618 | case NODE: |
619 | map_node_draw(map, map_item->object.node); |
620 | break; |
621 | case WAY: |
622 | map_way_draw(map, map_item->object.way); |
623 | break; |
624 | default: |
625 | g_assert((map_item->object.type == NODE) || |
626 | (map_item->object.type == WAY)); |
627 | } |
628 | } |
629 | |
630 | static void map_item_remove(map_t *map, map_item_t *map_item) { |
631 | map_item_chain_t **chainP = NULL; |
632 | |
633 | switch(map_item->object.type) { |
634 | case NODE: |
635 | chainP = &map_item->object.node->map_item_chain; |
636 | break; |
637 | case WAY: |
638 | chainP = &map_item->object.way->map_item_chain; |
639 | break; |
640 | default: |
641 | g_assert((map_item->object.type == NODE) || |
642 | (map_item->object.type == WAY)); |
643 | } |
644 | |
645 | map_item_chain_destroy(chainP); |
646 | } |
647 | |
648 | static void map_item_init(style_t *style, map_item_t *map_item) { |
649 | switch (map_item->object.type){ |
650 | case WAY: |
651 | josm_elemstyles_colorize_way(style, map_item->object.way); |
652 | break; |
653 | case NODE: |
654 | josm_elemstyles_colorize_node(style, map_item->object.node); |
655 | break; |
656 | default: |
657 | g_assert((map_item->object.type == NODE) || |
658 | (map_item->object.type == WAY)); |
659 | } |
660 | } |
661 | |
662 | void map_item_redraw(appdata_t *appdata, map_item_t *map_item) { |
663 | map_item_t item = *map_item; |
664 | |
665 | /* a relation cannot be redraws as it doesn't have a visual */ |
666 | /* representation */ |
667 | if(map_item->object.type == RELATION) |
668 | return; |
669 | |
670 | /* check if the item to be redrawn is the selected one */ |
671 | gboolean is_selected = FALSE; |
672 | if(map_item->object.ptr == appdata->map->selected.object.ptr) { |
673 | map_item_deselect(appdata); |
674 | is_selected = TRUE; |
675 | } |
676 | |
677 | map_item_remove(appdata->map, &item); |
678 | map_item_init(appdata->map->style, &item); |
679 | map_item_draw(appdata->map, &item); |
680 | |
681 | /* restore selection if there was one */ |
682 | if(is_selected) |
683 | map_object_select(appdata, &item.object); |
684 | } |
685 | |
686 | static void map_frisket_rectangle(canvas_points_t *points, |
687 | gint x0, gint x1, gint y0, gint y1) { |
688 | points->coords[2*0+0] = points->coords[2*3+0] = points->coords[2*4+0] = x0; |
689 | points->coords[2*1+0] = points->coords[2*2+0] = x1; |
690 | points->coords[2*0+1] = points->coords[2*1+1] = points->coords[2*4+1] = y0; |
691 | points->coords[2*2+1] = points->coords[2*3+1] = y1; |
692 | } |
693 | |
694 | /* Draw the frisket area which masks off areas it'd be unsafe to edit, |
695 | * plus its inner edge marker line */ |
696 | void map_frisket_draw(map_t *map, bounds_t *bounds) { |
697 | canvas_points_t *points = canvas_points_new(5); |
698 | |
699 | /* don't draw frisket at all if it's completely transparent */ |
700 | if(map->style->frisket.color & 0xff) { |
701 | elemstyle_color_t color = map->style->frisket.color; |
702 | |
703 | float mult = map->style->frisket.mult; |
704 | |
705 | /* top rectangle */ |
706 | map_frisket_rectangle(points, mult*bounds->min.x, mult*bounds->max.x, |
707 | mult*bounds->min.y, bounds->min.y); |
708 | canvas_polygon_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
709 | 1, NO_COLOR, color); |
710 | |
711 | /* bottom rectangle */ |
712 | map_frisket_rectangle(points, mult*bounds->min.x, mult*bounds->max.x, |
713 | bounds->max.y, mult*bounds->max.y); |
714 | canvas_polygon_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
715 | 1, NO_COLOR, color); |
716 | |
717 | /* left rectangle */ |
718 | map_frisket_rectangle(points, mult*bounds->min.x, bounds->min.x, |
719 | mult*bounds->min.y, mult*bounds->max.y); |
720 | canvas_polygon_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
721 | 1, NO_COLOR, color); |
722 | |
723 | /* right rectangle */ |
724 | map_frisket_rectangle(points, bounds->max.x, mult*bounds->max.x, |
725 | mult*bounds->min.y, mult*bounds->max.y); |
726 | canvas_polygon_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
727 | 1, NO_COLOR, color); |
728 | |
729 | } |
730 | |
731 | if(map->style->frisket.border.present) { |
732 | // Edge marker line |
733 | gint ew2 = map->style->frisket.border.width/2; |
734 | map_frisket_rectangle(points, |
735 | bounds->min.x-ew2, bounds->max.x+ew2, |
736 | bounds->min.y-ew2, bounds->max.y+ew2); |
737 | |
738 | canvas_polyline_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
739 | map->style->frisket.border.width, |
740 | map->style->frisket.border.color); |
741 | |
742 | } |
743 | canvas_points_free(points); |
744 | } |
745 | |
746 | static void map_draw(map_t *map, osm_t *osm) { |
747 | g_assert(map->canvas); |
748 | |
749 | printf("drawing ways ...\n"); |
750 | way_t *way = osm->way; |
751 | while(way) { |
752 | map_way_draw(map, way); |
753 | way = way->next; |
754 | } |
755 | |
756 | printf("drawing single nodes ...\n"); |
757 | node_t *node = osm->node; |
758 | while(node) { |
759 | map_node_draw(map, node); |
760 | node = node->next; |
761 | } |
762 | |
763 | printf("drawing frisket...\n"); |
764 | map_frisket_draw(map, osm->bounds); |
765 | } |
766 | |
767 | void map_state_free(map_state_t *state) { |
768 | if(!state) return; |
769 | |
770 | /* free state of noone else references it */ |
771 | if(state->refcount > 1) |
772 | state->refcount--; |
773 | else |
774 | g_free(state); |
775 | } |
776 | |
777 | void map_free_map_item_chains(appdata_t *appdata) { |
778 | if(!appdata->osm) return; |
779 | |
780 | #ifndef DESTROY_WAIT_FOR_GTK |
781 | printf(" DESTROY_WAIT_FOR_GTK not set, removing all chains now\n"); |
782 | |
783 | /* free all map_item_chains */ |
784 | node_t *node = appdata->osm->node; |
785 | while(node) { |
786 | map_item_chain_t *chain = node->map_item_chain; |
787 | while(chain) { |
788 | map_item_chain_t *next = chain->next; |
789 | g_free(chain); |
790 | chain = next; |
791 | } |
792 | node->map_item_chain = NULL; |
793 | node = node->next; |
794 | } |
795 | |
796 | way_t *way = appdata->osm->way; |
797 | while(way) { |
798 | map_item_chain_t *chain = way->map_item_chain; |
799 | while(chain) { |
800 | map_item_chain_t *next = chain->next; |
801 | g_free(chain); |
802 | chain = next; |
803 | } |
804 | way->map_item_chain = NULL; |
805 | way = way->next; |
806 | } |
807 | #endif |
808 | } |
809 | |
810 | static gint map_destroy_event(GtkWidget *widget, gpointer data) { |
811 | appdata_t *appdata = (appdata_t*)data; |
812 | map_t *map = appdata->map; |
813 | |
814 | printf("destroying entire map\n"); |
815 | |
816 | map_free_map_item_chains(appdata); |
817 | |
818 | /* free buffered tags */ |
819 | if(map->last_node_tags) osm_tags_free(map->last_node_tags); |
820 | if(map->last_way_tags) osm_tags_free(map->last_way_tags); |
821 | |
822 | map_state_free(map->state); |
823 | |
824 | if(map->style) |
825 | style_free(map->style); |
826 | |
827 | /* destroy existing highlight */ |
828 | if(map->highlight) { |
829 | printf("removing highlight\n"); |
830 | |
831 | map_highlight_t *hl = map->highlight; |
832 | while(hl) { |
833 | map_highlight_t *next = hl->next; |
834 | g_free(hl); |
835 | hl = next; |
836 | } |
837 | } |
838 | |
839 | g_free(map); |
840 | |
841 | appdata->map = NULL; |
842 | |
843 | return FALSE; |
844 | } |
845 | |
846 | /* get the item at position x, y */ |
847 | map_item_t *map_item_at(map_t *map, gint x, gint y) { |
848 | printf("map check at %d/%d\n", x, y); |
849 | |
850 | canvas_window2world(map->canvas, x, y, &x, &y); |
851 | |
852 | printf("world check at %d/%d\n", x, y); |
853 | |
854 | canvas_item_t *item = canvas_get_item_at(map->canvas, x, y); |
855 | |
856 | if(!item) { |
857 | printf(" there's no item\n"); |
858 | return NULL; |
859 | } |
860 | |
861 | printf(" there's an item (%p)\n", item); |
862 | |
863 | map_item_t *map_item = canvas_item_get_user_data(item); |
864 | |
865 | if(!map_item) { |
866 | printf(" item has no user data!\n"); |
867 | return NULL; |
868 | } |
869 | |
870 | if(map_item->highlight) |
871 | printf(" item is highlight\n"); |
872 | |
873 | switch(map_item->object.type) { |
874 | case NODE: |
875 | printf(" item is node #"ITEM_ID_FORMAT"\n", map_item->object.node->id); |
876 | break; |
877 | case WAY: |
878 | printf(" item is way #"ITEM_ID_FORMAT"\n", map_item->object.way->id); |
879 | break; |
880 | default: |
881 | printf(" unknown item\n"); |
882 | break; |
883 | } |
884 | |
885 | return map_item; |
886 | } |
887 | |
888 | /* get the real item (no highlight) at x, y */ |
889 | map_item_t *map_real_item_at(map_t *map, gint x, gint y) { |
890 | map_item_t *map_item = map_item_at(map, x, y); |
891 | |
892 | /* no item or already a real one */ |
893 | if(!map_item || !map_item->highlight) return map_item; |
894 | |
895 | /* get the item (parent) this item is the highlight of */ |
896 | map_item_t *parent = NULL; |
897 | switch(map_item->object.type) { |
898 | |
899 | case NODE: |
900 | if(map_item->object.node->map_item_chain) |
901 | parent = map_item->object.node->map_item_chain->map_item; |
902 | |
903 | if(parent) |
904 | printf(" using parent item node #" ITEM_ID_FORMAT "\n", |
905 | parent->object.node->id); |
906 | break; |
907 | |
908 | case WAY: |
909 | if(map_item->object.way->map_item_chain) |
910 | parent = map_item->object.way->map_item_chain->map_item; |
911 | |
912 | if(parent) |
913 | printf(" using parent item way #" ITEM_ID_FORMAT "\n", |
914 | parent->object.way->id); |
915 | break; |
916 | |
917 | default: |
918 | g_assert((map_item->object.type == NODE) || |
919 | (map_item->object.type == WAY)); |
920 | break; |
921 | } |
922 | |
923 | if(parent) |
924 | map_item = parent; |
925 | else |
926 | printf(" no parent, working on highlight itself\n"); |
927 | |
928 | return map_item; |
929 | } |
930 | |
931 | /* Limitations on the amount by which we can scroll. Keeps part of the |
932 | * map visible at all times */ |
933 | static void map_limit_scroll(map_t *map, canvas_unit_t unit, |
934 | gint *sx, gint *sy) { |
935 | |
936 | /* get scale factor for pixel->meter conversion. set to 1 if */ |
937 | /* given coordinates are already in meters */ |
938 | gdouble scale = (unit == CANVAS_UNIT_METER)?1.0:canvas_get_zoom(map->canvas); |
939 | |
940 | /* convert pixels to meters if necessary */ |
941 | gdouble sx_cu = *sx / scale; |
942 | gdouble sy_cu = *sy / scale; |
943 | |
944 | /* get size of visible area in canvas units (meters) */ |
945 | gint aw_cu = canvas_get_viewport_width(map->canvas, CANVAS_UNIT_METER); |
946 | gint ah_cu = canvas_get_viewport_height(map->canvas, CANVAS_UNIT_METER); |
947 | |
948 | // Data rect minimum and maximum |
949 | gint min_x, min_y, max_x, max_y; |
950 | min_x = map->appdata->osm->bounds->min.x; |
951 | min_y = map->appdata->osm->bounds->min.y; |
952 | max_x = map->appdata->osm->bounds->max.x; |
953 | max_y = map->appdata->osm->bounds->max.y; |
954 | |
955 | // limit stops - prevent scrolling beyond these |
956 | gint min_sy_cu = 0.95*(min_y - ah_cu); |
957 | gint min_sx_cu = 0.95*(min_x - aw_cu); |
958 | gint max_sy_cu = 0.95*(max_y); |
959 | gint max_sx_cu = 0.95*(max_x); |
960 | if (sy_cu < min_sy_cu) { *sy = min_sy_cu * scale; } |
961 | if (sx_cu < min_sx_cu) { *sx = min_sx_cu * scale; } |
962 | if (sy_cu > max_sy_cu) { *sy = max_sy_cu * scale; } |
963 | if (sx_cu > max_sx_cu) { *sx = max_sx_cu * scale; } |
964 | } |
965 | |
966 | |
967 | /* Limit a proposed zoom factor to sane ranges. |
968 | * Specifically the map is allowed to be no smaller than the viewport. */ |
969 | static gboolean map_limit_zoom(map_t *map, gdouble *zoom) { |
970 | // Data rect minimum and maximum |
971 | gint min_x, min_y, max_x, max_y; |
972 | min_x = map->appdata->osm->bounds->min.x; |
973 | min_y = map->appdata->osm->bounds->min.y; |
974 | max_x = map->appdata->osm->bounds->max.x; |
975 | max_y = map->appdata->osm->bounds->max.y; |
976 | |
977 | /* get size of visible area in pixels and convert to meters of intended */ |
978 | /* zoom by deviding by zoom (which is basically pix/m) */ |
979 | gint aw_cu = |
980 | canvas_get_viewport_width(map->canvas, CANVAS_UNIT_PIXEL) / *zoom; |
981 | gint ah_cu = |
982 | canvas_get_viewport_height(map->canvas, CANVAS_UNIT_PIXEL) / *zoom; |
983 | |
984 | gdouble oldzoom = *zoom; |
985 | if (ah_cu < aw_cu) { |
986 | gint lim_h = ah_cu*0.95; |
987 | if (max_y-min_y < lim_h) { |
988 | gdouble corr = ((gdouble)max_y-min_y) / (gdouble)lim_h; |
989 | *zoom /= corr; |
990 | } |
991 | } |
992 | else { |
993 | gint lim_w = aw_cu*0.95; |
994 | if (max_x-min_x < lim_w) { |
995 | gdouble corr = ((gdouble)max_x-min_x) / (gdouble)lim_w; |
996 | *zoom /= corr; |
997 | } |
998 | } |
999 | if (*zoom != oldzoom) { |
1000 | printf("Can't zoom further out (%f)\n", *zoom); |
1001 | return 1; |
1002 | } |
1003 | return 0; |
1004 | } |
1005 | |
1006 | |
1007 | /* |
1008 | * Scroll the map to a point if that point is currently offscreen. |
1009 | */ |
1010 | void map_scroll_to_if_offscreen(map_t *map, lpos_t *lpos) { |
1011 | |
1012 | // Ignore anything outside the working area |
1013 | if (!(map && map->appdata && map->appdata->osm)) { |
1014 | return; |
1015 | } |
1016 | gint min_x, min_y, max_x, max_y; |
1017 | min_x = map->appdata->osm->bounds->min.x; |
1018 | min_y = map->appdata->osm->bounds->min.y; |
1019 | max_x = map->appdata->osm->bounds->max.x; |
1020 | max_y = map->appdata->osm->bounds->max.y; |
1021 | if ( (lpos->x > max_x) || (lpos->x < min_x) |
1022 | || (lpos->y > max_y) || (lpos->y < min_y)) { |
1023 | printf("cannot scroll to (%d, %d): outside the working area\n", |
1024 | lpos->x, lpos->y); |
1025 | return; |
1026 | } |
1027 | |
1028 | // Viewport dimensions in canvas space |
1029 | |
1030 | /* get size of visible area in canvas units (meters) */ |
1031 | gdouble pix_per_meter = canvas_get_zoom(map->canvas); |
1032 | gdouble aw = canvas_get_viewport_width(map->canvas, CANVAS_UNIT_METER); |
1033 | gdouble ah = canvas_get_viewport_height(map->canvas, CANVAS_UNIT_METER); |
1034 | |
1035 | // Is the point still onscreen? |
1036 | gboolean vert_recentre_needed = FALSE; |
1037 | gboolean horiz_recentre_needed = FALSE; |
1038 | gint sx, sy; |
1039 | canvas_scroll_get(map->canvas, CANVAS_UNIT_PIXEL, &sx, &sy); |
1040 | gint viewport_left = (sx/pix_per_meter); |
1041 | gint viewport_right = (sx/pix_per_meter)+aw; |
1042 | gint viewport_top = (sy/pix_per_meter); |
1043 | gint viewport_bottom = (sy/pix_per_meter)+ah; |
1044 | if (lpos->x > viewport_right) { |
1045 | printf("** off right edge (%d > %d)\n", lpos->x, viewport_right); |
1046 | horiz_recentre_needed = TRUE; |
1047 | } |
1048 | if (lpos->x < viewport_left) { |
1049 | printf("** off left edge (%d < %d)\n", lpos->x, viewport_left); |
1050 | horiz_recentre_needed = TRUE; |
1051 | } |
1052 | if (lpos->y > viewport_bottom) { |
1053 | printf("** off bottom edge (%d > %d)\n", lpos->y, viewport_bottom); |
1054 | vert_recentre_needed = TRUE; |
1055 | } |
1056 | if (lpos->y < viewport_top) { |
1057 | printf("** off top edge (%d < %d)\n", lpos->y, viewport_top); |
1058 | vert_recentre_needed = TRUE; |
1059 | } |
1060 | |
1061 | if (horiz_recentre_needed || vert_recentre_needed) { |
1062 | gint new_sx, new_sy; |
1063 | |
1064 | // Just centre both at once |
1065 | new_sx = pix_per_meter * (lpos->x - (aw/2)); |
1066 | new_sy = pix_per_meter * (lpos->y - (ah/2)); |
1067 | |
1068 | map_limit_scroll(map, CANVAS_UNIT_PIXEL, &new_sx, &new_sy); |
1069 | canvas_scroll_to(map->canvas, CANVAS_UNIT_PIXEL, new_sx, new_sy); |
1070 | } |
1071 | } |
1072 | |
1073 | /* Deselects the current way or node if its zoom_max |
1074 | * means that it's not going to render at the current map zoom. */ |
1075 | void map_deselect_if_zoom_below_zoom_max(map_t *map) { |
1076 | if (map->selected.object.type == WAY) { |
1077 | printf("will deselect way if zoomed below %f\n", |
1078 | map->selected.object.way->draw.zoom_max); |
1079 | if (map->state->zoom < map->selected.object.way->draw.zoom_max) { |
1080 | printf(" deselecting way!\n"); |
1081 | map_item_deselect(map->appdata); |
1082 | } |
1083 | } |
1084 | else if (map->selected.object.type == NODE) { |
1085 | printf("will deselect node if zoomed below %f\n", |
1086 | map->selected.object.node->zoom_max); |
1087 | if (map->state->zoom < map->selected.object.node->zoom_max) { |
1088 | printf(" deselecting node!\n"); |
1089 | map_item_deselect(map->appdata); |
1090 | } |
1091 | } |
1092 | } |
1093 | |
1094 | void map_set_zoom(map_t *map, double zoom, |
1095 | gboolean update_scroll_offsets) { |
1096 | gboolean at_zoom_limit = 0; |
1097 | at_zoom_limit = map_limit_zoom(map, &zoom); |
1098 | |
1099 | map->state->zoom = zoom; |
1100 | canvas_set_zoom(map->canvas, map->state->zoom); |
1101 | |
1102 | map_deselect_if_zoom_below_zoom_max(map); |
1103 | |
1104 | if(update_scroll_offsets) { |
1105 | if (!at_zoom_limit) { |
1106 | /* zooming affects the scroll offsets */ |
1107 | gint sx, sy; |
1108 | canvas_scroll_get(map->canvas, CANVAS_UNIT_PIXEL, &sx, &sy); |
1109 | map_limit_scroll(map, CANVAS_UNIT_PIXEL, &sx, &sy); |
1110 | |
1111 | // keep the map visible |
1112 | canvas_scroll_to(map->canvas, CANVAS_UNIT_PIXEL, sx, sy); |
1113 | } |
1114 | |
1115 | canvas_scroll_get(map->canvas, CANVAS_UNIT_METER, |
1116 | &map->state->scroll_offset.x, |
1117 | &map->state->scroll_offset.y); |
1118 | } |
1119 | } |
1120 | |
1121 | static gboolean map_scroll_event(GtkWidget *widget, GdkEventScroll *event, |
1122 | gpointer data) { |
1123 | appdata_t *appdata = (appdata_t*)data; |
1124 | |
1125 | if(!appdata->osm) return FALSE; |
1126 | |
1127 | if(event->type == GDK_SCROLL && appdata->map && appdata->map->state) { |
1128 | if(event->direction) |
1129 | map_set_zoom(appdata->map, |
1130 | appdata->map->state->zoom / ZOOM_FACTOR_WHEEL, TRUE); |
1131 | else |
1132 | map_set_zoom(appdata->map, |
1133 | appdata->map->state->zoom * ZOOM_FACTOR_WHEEL, TRUE); |
1134 | } |
1135 | |
1136 | return TRUE; |
1137 | } |
1138 | |
1139 | static gboolean distance_above(map_t *map, gint x, gint y, gint limit) { |
1140 | gint sx, sy; |
1141 | |
1142 | /* add offsets generated by mouse within map and map scrolling */ |
1143 | sx = (x-map->pen_down.at.x); |
1144 | sy = (y-map->pen_down.at.y); |
1145 | |
1146 | return(sx*sx + sy*sy > limit*limit); |
1147 | } |
1148 | |
1149 | /* scroll with respect to two screen positions */ |
1150 | static void map_do_scroll(map_t *map, gint x, gint y) { |
1151 | gint sx, sy; |
1152 | |
1153 | canvas_scroll_get(map->canvas, CANVAS_UNIT_PIXEL, &sx, &sy); |
1154 | sx -= x-map->pen_down.at.x; |
1155 | sy -= y-map->pen_down.at.y; |
1156 | map_limit_scroll(map, CANVAS_UNIT_PIXEL, &sx, &sy); |
1157 | canvas_scroll_to(map->canvas, CANVAS_UNIT_PIXEL, sx, sy); |
1158 | |
1159 | canvas_scroll_get(map->canvas, CANVAS_UNIT_METER, |
1160 | &map->state->scroll_offset.x, |
1161 | &map->state->scroll_offset.y); |
1162 | } |
1163 | |
1164 | |
1165 | /* scroll a certain step */ |
1166 | static void map_do_scroll_step(map_t *map, gint x, gint y) { |
1167 | gint sx, sy; |
1168 | canvas_scroll_get(map->canvas, CANVAS_UNIT_PIXEL, &sx, &sy); |
1169 | sx += x; |
1170 | sy += y; |
1171 | map_limit_scroll(map, CANVAS_UNIT_PIXEL, &sx, &sy); |
1172 | canvas_scroll_to(map->canvas, CANVAS_UNIT_PIXEL, sx, sy); |
1173 | |
1174 | canvas_scroll_get(map->canvas, CANVAS_UNIT_METER, |
1175 | &map->state->scroll_offset.x, |
1176 | &map->state->scroll_offset.y); |
1177 | } |
1178 | |
1179 | gboolean map_item_is_selected_node(map_t *map, map_item_t *map_item) { |
1180 | printf("check if item is a selected node\n"); |
1181 | |
1182 | if(!map_item) { |
1183 | printf(" no item requested\n"); |
1184 | return FALSE; |
1185 | } |
1186 | |
1187 | if(map->selected.object.type == ILLEGAL) { |
1188 | printf(" nothing is selected\n"); |
1189 | return FALSE; |
1190 | } |
1191 | |
1192 | /* clicked the highlight directly */ |
1193 | if(map_item->object.type != NODE) { |
1194 | printf(" didn't click node\n"); |
1195 | return FALSE; |
1196 | } |
1197 | |
1198 | if(map->selected.object.type == NODE) { |
1199 | printf(" selected item is a node\n"); |
1200 | |
1201 | if(map_item->object.node == map->selected.object.node) { |
1202 | printf(" requested item is a selected node\n"); |
1203 | return TRUE; |
1204 | } |
1205 | printf(" but it's not the requested one\n"); |
1206 | return FALSE; |
1207 | |
1208 | } else if(map->selected.object.type == WAY) { |
1209 | printf(" selected item is a way\n"); |
1210 | |
1211 | node_chain_t *node_chain = map->selected.object.way->node_chain; |
1212 | while(node_chain) { |
1213 | if(node_chain->node == map_item->object.node) { |
1214 | printf(" requested item is part of selected way\n"); |
1215 | return TRUE; |
1216 | } |
1217 | node_chain = node_chain->next; |
1218 | } |
1219 | printf(" but it doesn't include the requested node\n"); |
1220 | return FALSE; |
1221 | |
1222 | } else { |
1223 | printf(" selected item is unknown\n"); |
1224 | return FALSE; |
1225 | } |
1226 | |
1227 | g_assert(0); |
1228 | return TRUE; |
1229 | } |
1230 | |
1231 | /* return true if the item given is the currenly selected way */ |
1232 | /* also return false if nothing is selected or the selection is no way */ |
1233 | gboolean map_item_is_selected_way(map_t *map, map_item_t *map_item) { |
1234 | printf("check if item is the selected way\n"); |
1235 | |
1236 | if(!map_item) { |
1237 | printf(" no item requested\n"); |
1238 | return FALSE; |
1239 | } |
1240 | |
1241 | if(map->selected.object.type == ILLEGAL) { |
1242 | printf(" nothing is selected\n"); |
1243 | return FALSE; |
1244 | } |
1245 | |
1246 | /* clicked the highlight directly */ |
1247 | if(map_item->object.type != WAY) { |
1248 | printf(" didn't click way\n"); |
1249 | return FALSE; |
1250 | } |
1251 | |
1252 | if(map->selected.object.type == WAY) { |
1253 | printf(" selected item is a way\n"); |
1254 | |
1255 | if(map_item->object.way == map->selected.object.way) { |
1256 | printf(" requested item is a selected way\n"); |
1257 | return TRUE; |
1258 | } |
1259 | printf(" but it's not the requested one\n"); |
1260 | return FALSE; |
1261 | } |
1262 | |
1263 | printf(" selected item is not a way\n"); |
1264 | return FALSE; |
1265 | } |
1266 | |
1267 | |
1268 | void map_highlight_refresh(appdata_t *appdata) { |
1269 | map_t *map = appdata->map; |
1270 | object_t old = map->selected.object; |
1271 | |
1272 | printf("type to refresh is %d\n", old.type); |
1273 | if(old.type == ILLEGAL) |
1274 | return; |
1275 | |
1276 | map_item_deselect(appdata); |
1277 | map_object_select(appdata, &old); |
1278 | } |
1279 | |
1280 | void map_way_delete(appdata_t *appdata, way_t *way) { |
1281 | printf("deleting way #" ITEM_ID_FORMAT " from map and osm\n", way->id); |
1282 | |
1283 | /* remove it visually from the screen */ |
1284 | map_item_chain_destroy(&way->map_item_chain); |
1285 | |
1286 | /* also remove the visible representation of all nodes (nodes with tags) */ |
1287 | node_chain_t *chain = way->node_chain; |
1288 | while(chain) { |
1289 | if(chain->node->map_item_chain) |
1290 | map_item_chain_destroy(&chain->node->map_item_chain); |
1291 | |
1292 | chain = chain->next; |
1293 | } |
1294 | |
1295 | /* and mark it "deleted" in the database */ |
1296 | osm_way_remove_from_relation(appdata->osm, way); |
1297 | osm_way_delete(appdata->osm, &appdata->icon, way, FALSE); |
1298 | } |
1299 | |
1300 | static void map_handle_click(appdata_t *appdata, map_t *map) { |
1301 | |
1302 | /* problem: on_item may be the highlight itself! So store it! */ |
1303 | map_item_t map_item; |
1304 | if(map->pen_down.on_item) map_item = *map->pen_down.on_item; |
1305 | else map_item.object.type = ILLEGAL; |
1306 | |
1307 | /* if we aready have something selected, then de-select it */ |
1308 | map_item_deselect(appdata); |
1309 | |
1310 | /* select the clicked item (if there was one) */ |
1311 | if(map_item.object.type != ILLEGAL) { |
1312 | switch(map_item.object.type) { |
1313 | case NODE: |
1314 | map_node_select(appdata, map_item.object.node); |
1315 | break; |
1316 | |
1317 | case WAY: |
1318 | map_way_select(appdata, map_item.object.way); |
1319 | break; |
1320 | |
1321 | default: |
1322 | g_assert((map_item.object.type == NODE) || |
1323 | (map_item.object.type == WAY)); |
1324 | break; |
1325 | } |
1326 | } |
1327 | } |
1328 | |
1329 | static void map_touchnode_update(appdata_t *appdata, gint x, gint y) { |
1330 | map_t *map = appdata->map; |
1331 | |
1332 | map_hl_touchnode_clear(map); |
1333 | |
1334 | node_t *cur_node = NULL; |
1335 | |
1336 | /* the "current node" which is the one we are working on and which */ |
1337 | /* should not be highlighted depends on the action */ |
1338 | switch(map->action.type) { |
1339 | |
1340 | /* in idle mode the dragged node is not highlighted */ |
1341 | case MAP_ACTION_IDLE: |
1342 | g_assert(map->pen_down.on_item); |
1343 | g_assert(map->pen_down.on_item->object.type == NODE); |
1344 | cur_node = map->pen_down.on_item->object.node; |
1345 | break; |
1346 | |
1347 | default: |
1348 | break; |
1349 | } |
1350 | |
1351 | |
1352 | /* check if we are close to one of the other nodes */ |
1353 | canvas_window2world(appdata->map->canvas, x, y, &x, &y); |
1354 | node_t *node = appdata->osm->node; |
1355 | while(!map->touchnode && node) { |
1356 | /* don't highlight the dragged node itself and don't highlight */ |
1357 | /* deleted ones */ |
1358 | if((node != cur_node) && (!(node->flags & OSM_FLAG_DELETED))) { |
1359 | gint nx = abs(x - node->lpos.x); |
1360 | gint ny = abs(y - node->lpos.y); |
1361 | |
1362 | if((nx < map->style->node.radius) && (ny < map->style->node.radius) && |
1363 | (nx*nx + ny*ny < map->style->node.radius * map->style->node.radius)) |
1364 | map_hl_touchnode_draw(map, node); |
1365 | } |
1366 | node = node->next; |
1367 | } |
1368 | |
1369 | /* during way creation also nodes of the new way */ |
1370 | /* need to be searched */ |
1371 | if(!map->touchnode && map->action.way) { |
1372 | node_chain_t *chain = map->action.way->node_chain; |
1373 | while(!map->touchnode && chain && chain->next) { |
1374 | gint nx = abs(x - chain->node->lpos.x); |
1375 | gint ny = abs(y - chain->node->lpos.y); |
1376 | |
1377 | if((nx < map->style->node.radius) && (ny < map->style->node.radius) && |
1378 | (nx*nx + ny*ny < map->style->node.radius * map->style->node.radius)) |
1379 | map_hl_touchnode_draw(map, chain->node); |
1380 | |
1381 | chain = chain->next; |
1382 | } |
1383 | } |
1384 | } |
1385 | |
1386 | static void map_button_press(map_t *map, gint x, gint y) { |
1387 | |
1388 | printf("left button pressed\n"); |
1389 | map->pen_down.is = TRUE; |
1390 | |
1391 | /* save press position */ |
1392 | map->pen_down.at.x = x; |
1393 | map->pen_down.at.y = y; |
1394 | map->pen_down.drag = FALSE; // don't assume drag yet |
1395 | |
1396 | /* determine wether this press was on an item */ |
1397 | map->pen_down.on_item = map_real_item_at(map, x, y); |
1398 | |
1399 | /* check if the clicked item is a highlighted node as the user */ |
1400 | /* might want to drag that */ |
1401 | map->pen_down.on_selected_node = FALSE; |
1402 | if(map->pen_down.on_item) |
1403 | map->pen_down.on_selected_node = |
1404 | map_item_is_selected_node(map, map->pen_down.on_item); |
1405 | |
1406 | /* button press */ |
1407 | switch(map->action.type) { |
1408 | |
1409 | case MAP_ACTION_WAY_NODE_ADD: |
1410 | map_edit_way_node_add_highlight(map, map->pen_down.on_item, x, y); |
1411 | break; |
1412 | |
1413 | case MAP_ACTION_WAY_CUT: |
1414 | map_edit_way_cut_highlight(map, map->pen_down.on_item, x, y); |
1415 | break; |
1416 | |
1417 | case MAP_ACTION_NODE_ADD: |
1418 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); |
1419 | break; |
1420 | |
1421 | case MAP_ACTION_WAY_ADD: |
1422 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); |
1423 | map_touchnode_update(map->appdata, x, y); |
1424 | break; |
1425 | |
1426 | default: |
1427 | break; |
1428 | } |
1429 | } |
1430 | |
1431 | /* move the background image (wms data) during wms adjustment */ |
1432 | static void map_bg_adjust(map_t *map, gint x, gint y) { |
1433 | g_assert(map->appdata); |
1434 | g_assert(map->appdata->osm); |
1435 | g_assert(map->appdata->osm->bounds); |
1436 | |
1437 | x += map->appdata->osm->bounds->min.x + map->bg.offset.x - |
1438 | map->pen_down.at.x; |
1439 | y += map->appdata->osm->bounds->min.y + map->bg.offset.y - |
1440 | map->pen_down.at.y; |
1441 | |
1442 | canvas_image_move(map->bg.item, x, y, map->bg.scale.x, map->bg.scale.y); |
1443 | } |
1444 | |
1445 | static void map_button_release(map_t *map, gint x, gint y) { |
1446 | map->pen_down.is = FALSE; |
1447 | |
1448 | /* before button release is handled */ |
1449 | switch(map->action.type) { |
1450 | case MAP_ACTION_BG_ADJUST: |
1451 | map_bg_adjust(map, x, y); |
1452 | map->bg.offset.x += x - map->pen_down.at.x; |
1453 | map->bg.offset.y += y - map->pen_down.at.y; |
1454 | break; |
1455 | |
1456 | case MAP_ACTION_IDLE: |
1457 | /* check if distance to press is above drag limit */ |
1458 | if(!map->pen_down.drag) |
1459 | map->pen_down.drag = distance_above(map, x, y, MAP_DRAG_LIMIT); |
1460 | |
1461 | if(!map->pen_down.drag) { |
1462 | printf("left button released after click\n"); |
1463 | |
1464 | map_item_t old_sel = map->selected; |
1465 | map_handle_click(map->appdata, map); |
1466 | |
1467 | if((old_sel.object.type != ILLEGAL) && |
1468 | (old_sel.object.type == map->selected.object.type) && |
1469 | (old_sel.object.ptr == map->selected.object.ptr)) { |
1470 | printf("re-selected same item of type %d, " |
1471 | "pushing it to the bottom\n", old_sel.object.type); |
1472 | |
1473 | if(!map->selected.item) { |
1474 | printf(" item has no visible representation to push\n"); |
1475 | } else { |
1476 | canvas_item_to_bottom(map->selected.item); |
1477 | |
1478 | /* update clicked item, to correctly handle the click */ |
1479 | map->pen_down.on_item = |
1480 | map_real_item_at(map, map->pen_down.at.x, map->pen_down.at.y); |
1481 | |
1482 | map_handle_click(map->appdata, map); |
1483 | } |
1484 | } |
1485 | } else { |
1486 | printf("left button released after drag\n"); |
1487 | |
1488 | /* just scroll if we didn't drag an selected item */ |
1489 | if(!map->pen_down.on_selected_node) |
1490 | map_do_scroll(map, x, y); |
1491 | else { |
1492 | printf("released after dragging node\n"); |
1493 | map_hl_cursor_clear(map); |
1494 | |
1495 | /* now actually move the node */ |
1496 | map_edit_node_move(map->appdata, map->pen_down.on_item, x, y); |
1497 | } |
1498 | } |
1499 | break; |
1500 | |
1501 | case MAP_ACTION_NODE_ADD: |
1502 | printf("released after NODE ADD\n"); |
1503 | map_hl_cursor_clear(map); |
1504 | |
1505 | /* convert mouse position to canvas (world) position */ |
1506 | canvas_window2world(map->canvas, x, y, &x, &y); |
1507 | |
1508 | node_t *node = NULL; |
1509 | if(!osm_position_within_bounds(map->appdata->osm, x, y)) |
1510 | map_outside_error(map->appdata); |
1511 | else { |
1512 | node = osm_node_new(map->appdata->osm, x, y); |
1513 | osm_node_attach(map->appdata->osm, node); |
1514 | map_node_draw(map, node); |
1515 | } |
1516 | map_action_set(map->appdata, MAP_ACTION_IDLE); |
1517 | |
1518 | map_item_deselect(map->appdata); |
1519 | |
1520 | if(node) { |
1521 | map_node_select(map->appdata, node); |
1522 | |
1523 | /* let the user specify some tags for the new node */ |
1524 | info_dialog(GTK_WIDGET(map->appdata->window), map->appdata, NULL); |
1525 | } |
1526 | break; |
1527 | |
1528 | case MAP_ACTION_WAY_ADD: |
1529 | printf("released after WAY ADD\n"); |
1530 | map_hl_cursor_clear(map); |
1531 | |
1532 | map_edit_way_add_segment(map, x, y); |
1533 | break; |
1534 | |
1535 | case MAP_ACTION_WAY_NODE_ADD: |
1536 | printf("released after WAY NODE ADD\n"); |
1537 | map_hl_cursor_clear(map); |
1538 | |
1539 | map_edit_way_node_add(map, x, y); |
1540 | break; |
1541 | |
1542 | case MAP_ACTION_WAY_CUT: |
1543 | printf("released after WAY CUT\n"); |
1544 | map_hl_cursor_clear(map); |
1545 | |
1546 | map_edit_way_cut(map, x, y); |
1547 | break; |
1548 | |
1549 | |
1550 | default: |
1551 | break; |
1552 | } |
1553 | } |
1554 | |
1555 | static gboolean map_button_event(GtkWidget *widget, GdkEventButton *event, |
1556 | gpointer data) { |
1557 | appdata_t *appdata = (appdata_t*)data; |
1558 | map_t *map = appdata->map; |
1559 | |
1560 | if(!appdata->osm) return FALSE; |
1561 | |
1562 | if(event->button == 1) { |
1563 | gint x = event->x, y = event->y; |
1564 | |
1565 | if(event->type == GDK_BUTTON_PRESS) |
1566 | map_button_press(map, x, y); |
1567 | |
1568 | if(event->type == GDK_BUTTON_RELEASE) |
1569 | map_button_release(map, x, y); |
1570 | } |
1571 | |
1572 | return FALSE; /* forward to further processing */ |
1573 | } |
1574 | |
1575 | static gboolean map_motion_notify_event(GtkWidget *widget, |
1576 | GdkEventMotion *event, gpointer data) { |
1577 | appdata_t *appdata = (appdata_t*)data; |
1578 | map_t *map = appdata->map; |
1579 | gint x, y; |
1580 | GdkModifierType state; |
1581 | |
1582 | if(!appdata->osm) return FALSE; |
1583 | |
1584 | #ifdef USE_HILDON |
1585 | /* reduce update frequency on hildon to keep screen update fluid */ |
1586 | static guint32 last_time = 0; |
1587 | |
1588 | if(event->time - last_time < 250) return FALSE; |
1589 | last_time = event->time; |
1590 | #endif |
1591 | |
1592 | if(!map->pen_down.is) |
1593 | return FALSE; |
1594 | |
1595 | #ifndef USE_GOOCANVAS |
1596 | /* handle hints, hints are handled by goocanvas directly */ |
1597 | if(event->is_hint) |
1598 | gdk_window_get_pointer(event->window, &x, &y, &state); |
1599 | else |
1600 | #endif |
1601 | { |
1602 | x = event->x; |
1603 | y = event->y; |
1604 | state = event->state; |
1605 | } |
1606 | |
1607 | /* check if distance to press is above drag limit */ |
1608 | if(!map->pen_down.drag) |
1609 | map->pen_down.drag = distance_above(map, x, y, MAP_DRAG_LIMIT); |
1610 | |
1611 | /* drag */ |
1612 | switch(map->action.type) { |
1613 | case MAP_ACTION_BG_ADJUST: |
1614 | map_bg_adjust(map, x, y); |
1615 | break; |
1616 | |
1617 | case MAP_ACTION_IDLE: |
1618 | if(map->pen_down.drag) { |
1619 | /* just scroll if we didn't drag an selected item */ |
1620 | if(!map->pen_down.on_selected_node) |
1621 | map_do_scroll(map, x, y); |
1622 | else { |
1623 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); |
1624 | map_touchnode_update(appdata, x, y); |
1625 | } |
1626 | } |
1627 | break; |
1628 | |
1629 | case MAP_ACTION_NODE_ADD: |
1630 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); |
1631 | break; |
1632 | |
1633 | case MAP_ACTION_WAY_ADD: |
1634 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); |
1635 | map_touchnode_update(appdata, x, y); |
1636 | break; |
1637 | |
1638 | case MAP_ACTION_WAY_NODE_ADD: |
1639 | map_hl_cursor_clear(map); |
1640 | map_item_t *item = map_item_at(map, x, y); |
1641 | if(item) map_edit_way_node_add_highlight(map, item, x, y); |
1642 | break; |
1643 | |
1644 | case MAP_ACTION_WAY_CUT: |
1645 | map_hl_cursor_clear(map); |
1646 | item = map_item_at(map, x, y); |
1647 | if(item) map_edit_way_cut_highlight(map, item, x, y); |
1648 | break; |
1649 | |
1650 | default: |
1651 | break; |
1652 | } |
1653 | |
1654 | |
1655 | return FALSE; /* forward to further processing */ |
1656 | } |
1657 | |
1658 | gboolean map_key_press_event(appdata_t *appdata, GdkEventKey *event) { |
1659 | |
1660 | if(!appdata->osm) return FALSE; |
1661 | |
1662 | /* map needs to be there to handle buttons */ |
1663 | if(!appdata->map->canvas) |
1664 | return FALSE; |
1665 | |
1666 | if(event->type == GDK_KEY_PRESS) { |
1667 | gdouble zoom = 0; |
1668 | switch(event->keyval) { |
1669 | |
1670 | case GDK_Left: |
1671 | map_do_scroll_step(appdata->map, -50, 0); |
1672 | break; |
1673 | |
1674 | case GDK_Right: |
1675 | map_do_scroll_step(appdata->map, +50, 0); |
1676 | break; |
1677 | |
1678 | case GDK_Up: |
1679 | map_do_scroll_step(appdata->map, 0, -50); |
1680 | break; |
1681 | |
1682 | case GDK_Down: |
1683 | map_do_scroll_step(appdata->map, 0, +50); |
1684 | break; |
1685 | |
1686 | case GDK_Return: // same as HILDON_HARDKEY_SELECT |
1687 | /* if the ok button is enabled, call its function */ |
1688 | if(GTK_WIDGET_FLAGS(appdata->iconbar->ok) & GTK_SENSITIVE) |
1689 | map_action_ok(appdata); |
1690 | /* otherwise if info is enabled call that */ |
1691 | else if(GTK_WIDGET_FLAGS(appdata->iconbar->info) & GTK_SENSITIVE) |
1692 | info_dialog(GTK_WIDGET(appdata->window), appdata, NULL); |
1693 | break; |
1694 | |
1695 | case GDK_Escape: // same as HILDON_HARDKEY_ESC |
1696 | /* if the cancel button is enabled, call its function */ |
1697 | if(GTK_WIDGET_FLAGS(appdata->iconbar->cancel) & GTK_SENSITIVE) |
1698 | map_action_cancel(appdata); |
1699 | break; |
1700 | |
1701 | #ifdef USE_HILDON |
1702 | case HILDON_HARDKEY_INCREASE: |
1703 | #else |
1704 | case '+': |
1705 | #endif |
1706 | zoom = appdata->map->state->zoom; |
1707 | zoom *= ZOOM_FACTOR_BUTTON; |
1708 | map_set_zoom(appdata->map, zoom, TRUE); |
1709 | printf("zoom is now %f (1:%d)\n", zoom, (int)zoom_to_scaledn(zoom)); |
1710 | return TRUE; |
1711 | break; |
1712 | |
1713 | #ifdef USE_HILDON |
1714 | case HILDON_HARDKEY_DECREASE: |
1715 | #else |
1716 | case '-': |
1717 | #endif |
1718 | zoom = appdata->map->state->zoom; |
1719 | zoom /= ZOOM_FACTOR_BUTTON; |
1720 | map_set_zoom(appdata->map, zoom, TRUE); |
1721 | printf("zoom is now %f (1:%d)\n", zoom, (int)zoom_to_scaledn(zoom)); |
1722 | return TRUE; |
1723 | break; |
1724 | |
1725 | default: |
1726 | printf("key event %d\n", event->keyval); |
1727 | break; |
1728 | } |
1729 | } |
1730 | return FALSE; |
1731 | } |
1732 | |
1733 | void map_state_reset(map_state_t *state) { |
1734 | if(!state) return; |
1735 | |
1736 | state->zoom = 0.25; |
1737 | state->detail = 1.0; |
1738 | |
1739 | /* todo: try to scroll to center of screen */ |
1740 | state->scroll_offset.x = 0; |
1741 | state->scroll_offset.y = 0; |
1742 | } |
1743 | |
1744 | map_state_t *map_state_new(void) { |
1745 | map_state_t *state = g_new0(map_state_t, 1); |
1746 | map_state_reset(state); |
1747 | return state; |
1748 | } |
1749 | |
1750 | GtkWidget *map_new(appdata_t *appdata) { |
1751 | map_t *map = appdata->map = g_new0(map_t, 1); |
1752 | |
1753 | map->style = style_load(appdata, appdata->settings->style); |
1754 | if(!map->style) { |
1755 | errorf(NULL, _("Unable to load valid style, terminating.")); |
1756 | g_free(map); |
1757 | return NULL; |
1758 | } |
1759 | |
1760 | if(appdata->project && appdata->project->map_state) { |
1761 | printf("Using projects map state\n"); |
1762 | map->state = appdata->project->map_state; |
1763 | } else { |
1764 | printf("Creating new map state\n"); |
1765 | map->state = map_state_new(); |
1766 | } |
1767 | |
1768 | map->state->refcount++; |
1769 | |
1770 | map->pen_down.at.x = -1; |
1771 | map->pen_down.at.y = -1; |
1772 | map->appdata = appdata; |
1773 | map->action.type = MAP_ACTION_IDLE; |
1774 | |
1775 | map->canvas = canvas_new(); |
1776 | |
1777 | GtkWidget *canvas_widget = canvas_get_widget(map->canvas); |
1778 | |
1779 | gtk_widget_set_events(canvas_widget, |
1780 | GDK_BUTTON_PRESS_MASK |
1781 | | GDK_BUTTON_RELEASE_MASK |
1782 | | GDK_SCROLL_MASK |
1783 | | GDK_POINTER_MOTION_MASK |
1784 | | GDK_POINTER_MOTION_HINT_MASK); |
1785 | |
1786 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1787 | "button_press_event", G_CALLBACK(map_button_event), appdata); |
1788 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1789 | "button_release_event", G_CALLBACK(map_button_event), appdata); |
1790 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1791 | "motion_notify_event", G_CALLBACK(map_motion_notify_event), appdata); |
1792 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1793 | "scroll_event", G_CALLBACK(map_scroll_event), appdata); |
1794 | |
1795 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1796 | "destroy", G_CALLBACK(map_destroy_event), appdata); |
1797 | |
1798 | return canvas_widget; |
1799 | } |
1800 | |
1801 | void map_init(appdata_t *appdata) { |
1802 | map_t *map = appdata->map; |
1803 | |
1804 | /* update canvas background color */ |
1805 | canvas_set_background(map->canvas, map->style->background.color); |
1806 | |
1807 | /* set initial zoom */ |
1808 | map_set_zoom(map, map->state->zoom, FALSE); |
1809 | josm_elemstyles_colorize_world(map->style, appdata->osm); |
1810 | |
1811 | map_draw(map, appdata->osm); |
1812 | |
1813 | float mult = appdata->map->style->frisket.mult; |
1814 | canvas_set_bounds(map->canvas, |
1815 | mult*appdata->osm->bounds->min.x, |
1816 | mult*appdata->osm->bounds->min.y, |
1817 | mult*appdata->osm->bounds->max.x, |
1818 | mult*appdata->osm->bounds->max.y); |
1819 | |
1820 | printf("restore scroll position %d/%d\n", |
1821 | map->state->scroll_offset.x, map->state->scroll_offset.y); |
1822 | |
1823 | map_limit_scroll(map, CANVAS_UNIT_METER, |
1824 | &map->state->scroll_offset.x, &map->state->scroll_offset.y); |
1825 | canvas_scroll_to(map->canvas, CANVAS_UNIT_METER, |
1826 | map->state->scroll_offset.x, map->state->scroll_offset.y); |
1827 | } |
1828 | |
1829 | |
1830 | void map_clear(appdata_t *appdata, gint group_mask) { |
1831 | map_t *map = appdata->map; |
1832 | |
1833 | printf("freeing map contents\n"); |
1834 | |
1835 | map_free_map_item_chains(appdata); |
1836 | |
1837 | /* remove a possibly existing highlight */ |
1838 | map_item_deselect(appdata); |
1839 | |
1840 | canvas_erase(map->canvas, group_mask); |
1841 | } |
1842 | |
1843 | void map_paint(appdata_t *appdata) { |
1844 | map_t *map = appdata->map; |
1845 | |
1846 | josm_elemstyles_colorize_world(map->style, appdata->osm); |
1847 | map_draw(map, appdata->osm); |
1848 | } |
1849 | |
1850 | /* called from several icons like e.g. "node_add" */ |
1851 | void map_action_set(appdata_t *appdata, map_action_t action) { |
1852 | printf("map action set to %d\n", action); |
1853 | |
1854 | appdata->map->action.type = action; |
1855 | |
1856 | /* enable/disable ok/cancel buttons */ |
1857 | // MAP_ACTION_IDLE=0, NODE_ADD, BG_ADJUST, WAY_ADD, WAY_NODE_ADD, WAY_CUT |
1858 | const gboolean ok_state[] = { FALSE, FALSE, TRUE, FALSE, FALSE, FALSE }; |
1859 | const gboolean cancel_state[] = { FALSE, TRUE, TRUE, TRUE, TRUE, TRUE }; |
1860 | |
1861 | g_assert(MAP_ACTION_NUM == sizeof(ok_state)/sizeof(gboolean)); |
1862 | g_assert(action < sizeof(ok_state)/sizeof(gboolean)); |
1863 | |
1864 | icon_bar_map_cancel_ok(appdata, cancel_state[action], ok_state[action]); |
1865 | |
1866 | switch(action) { |
1867 | case MAP_ACTION_BG_ADJUST: |
1868 | /* an existing selection only causes confusion ... */ |
1869 | map_item_deselect(appdata); |
1870 | break; |
1871 | |
1872 | case MAP_ACTION_WAY_ADD: |
1873 | printf("starting new way\n"); |
1874 | |
1875 | /* remember if there was a way selected */ |
1876 | way_t *way_sel = NULL; |
1877 | if(appdata->map->selected.object.type == WAY) |
1878 | way_sel = appdata->map->selected.object.way; |
1879 | |
1880 | map_item_deselect(appdata); |
1881 | map_edit_way_add_begin(appdata->map, way_sel); |
1882 | break; |
1883 | |
1884 | case MAP_ACTION_NODE_ADD: |
1885 | map_item_deselect(appdata); |
1886 | break; |
1887 | |
1888 | default: |
1889 | break; |
1890 | } |
1891 | |
1892 | icon_bar_map_action_idle(appdata, action == MAP_ACTION_IDLE); |
1893 | gtk_widget_set_sensitive(appdata->menu_item_wms_adjust, |
1894 | action == MAP_ACTION_IDLE); |
1895 | |
1896 | const char *str_state[] = { |
1897 | NULL, |
1898 | _("Place a node"), |
1899 | _("Adjust background image position"), |
1900 | _("Place first node of new way"), |
1901 | _("Place node on selected way"), |
1902 | _("Select segment to cut way"), |
1903 | }; |
1904 | |
1905 | g_assert(MAP_ACTION_NUM == sizeof(str_state)/sizeof(char*)); |
1906 | |
1907 | statusbar_set(appdata, str_state[action], FALSE); |
1908 | } |
1909 | |
1910 | |
1911 | void map_action_cancel(appdata_t *appdata) { |
1912 | map_t *map = appdata->map; |
1913 | |
1914 | switch(map->action.type) { |
1915 | case MAP_ACTION_WAY_ADD: |
1916 | map_edit_way_add_cancel(map); |
1917 | break; |
1918 | |
1919 | case MAP_ACTION_BG_ADJUST: |
1920 | /* undo all changes to bg_offset */ |
1921 | map->bg.offset.x = appdata->project->wms_offset.x; |
1922 | map->bg.offset.y = appdata->project->wms_offset.y; |
1923 | |
1924 | gint x = appdata->osm->bounds->min.x + map->bg.offset.x; |
1925 | gint y = appdata->osm->bounds->min.y + map->bg.offset.y; |
1926 | canvas_image_move(map->bg.item, x, y, map->bg.scale.x, map->bg.scale.y); |
1927 | break; |
1928 | |
1929 | default: |
1930 | break; |
1931 | } |
1932 | |
1933 | map_action_set(appdata, MAP_ACTION_IDLE); |
1934 | } |
1935 | |
1936 | void map_action_ok(appdata_t *appdata) { |
1937 | map_t *map = appdata->map; |
1938 | |
1939 | /* reset action now as this erases the statusbar and some */ |
1940 | /* of the actions may set it */ |
1941 | map_action_t type = map->action.type; |
1942 | map_action_set(appdata, MAP_ACTION_IDLE); |
1943 | |
1944 | switch(type) { |
1945 | case MAP_ACTION_WAY_ADD: |
1946 | map_edit_way_add_ok(map); |
1947 | break; |
1948 | |
1949 | case MAP_ACTION_BG_ADJUST: |
1950 | /* save changes to bg_offset in project */ |
1951 | appdata->project->wms_offset.x = map->bg.offset.x; |
1952 | appdata->project->wms_offset.y = map->bg.offset.y; |
1953 | break; |
1954 | |
1955 | default: |
1956 | break; |
1957 | } |
1958 | } |
1959 | |
1960 | /* called from icon "trash" */ |
1961 | void map_delete_selected(appdata_t *appdata) { |
1962 | map_t *map = appdata->map; |
1963 | |
1964 | if(!yes_no_f(GTK_WIDGET(appdata->window), |
1965 | appdata, MISC_AGAIN_ID_DELETE, MISC_AGAIN_FLAG_DONT_SAVE_NO, |
1966 | _("Delete selected object?"), |
1967 | _("Do you really want to delete the selected object?"))) |
1968 | return; |
1969 | |
1970 | /* work on local copy since de-selecting destroys the selection */ |
1971 | map_item_t item = map->selected; |
1972 | |
1973 | /* deleting the selected item de-selects it ... */ |
1974 | map_item_deselect(appdata); |
1975 | |
1976 | undo_remember_delete(appdata, &item.object); |
1977 | |
1978 | switch(item.object.type) { |
1979 | case NODE: |
1980 | printf("request to delete node #" ITEM_ID_FORMAT "\n", |
1981 | item.object.node->id); |
1982 | |
1983 | /* check if this node is part of a way with two nodes only. */ |
1984 | /* we cannot delete this as this would also delete the way */ |
1985 | way_chain_t *way_chain = osm_node_to_way(appdata->osm, item.object.node); |
1986 | if(way_chain) { |
1987 | gboolean short_way = FALSE; |
1988 | |
1989 | /* free the chain of ways */ |
1990 | while(way_chain && !short_way) { |
1991 | way_chain_t *next = way_chain->next; |
1992 | |
1993 | if(osm_way_number_of_nodes(way_chain->way) <= 2) |
1994 | short_way = TRUE; |
1995 | |
1996 | g_free(way_chain); |
1997 | way_chain = next; |
1998 | } |
1999 | |
2000 | if(short_way) { |
2001 | if(!yes_no_f(GTK_WIDGET(appdata->window), NULL, 0, 0, |
2002 | _("Delete node in short way(s)?"), |
2003 | _("Deleting this node will also delete one or more ways " |
2004 | "since they'll contain only one node afterwards. " |
2005 | "Do you really want this?"))) |
2006 | return; |
2007 | } |
2008 | } |
2009 | |
2010 | /* remove it visually from the screen */ |
2011 | map_item_chain_destroy(&item.object.node->map_item_chain); |
2012 | |
2013 | /* and mark it "deleted" in the database */ |
2014 | osm_node_remove_from_relation(appdata->osm, item.object.node); |
2015 | way_chain_t *chain = osm_node_delete(appdata->osm, |
2016 | &appdata->icon, item.object.node, FALSE, TRUE); |
2017 | |
2018 | /* redraw all affected ways */ |
2019 | while(chain) { |
2020 | way_chain_t *next = chain->next; |
2021 | |
2022 | if(osm_way_number_of_nodes(chain->way) == 1) { |
2023 | /* this way now only contains one node and thus isn't a valid */ |
2024 | /* way anymore. So it'll also get deleted (which in turn may */ |
2025 | /* cause other nodes to be deleted as well) */ |
2026 | map_way_delete(appdata, chain->way); |
2027 | } else { |
2028 | map_item_t item; |
2029 | item.object.type = WAY; |
2030 | item.object.way = chain->way; |
2031 | map_item_redraw(appdata, &item); |
2032 | } |
2033 | |
2034 | g_free(chain); |
2035 | |
2036 | chain = next; |
2037 | } |
2038 | |
2039 | break; |
2040 | |
2041 | case WAY: |
2042 | printf("request to delete way #" ITEM_ID_FORMAT "\n", item.object.way->id); |
2043 | map_way_delete(appdata, item.object.way); |
2044 | break; |
2045 | |
2046 | default: |
2047 | g_assert((item.object.type == NODE) || |
2048 | (item.object.type == WAY)); |
2049 | break; |
2050 | } |
2051 | } |
2052 | |
2053 | /* ----------------------- track related stuff ----------------------- */ |
2054 | |
2055 | static gboolean track_pos2lpos(bounds_t *bounds, pos_t *pos, lpos_t *lpos) { |
2056 | pos2lpos(bounds, pos, lpos); |
2057 | |
2058 | /* check if point is within bounds */ |
2059 | return ((lpos->x >= bounds->min.x) && (lpos->x <= bounds->max.x) && |
2060 | (lpos->y >= bounds->min.y) && (lpos->y <= bounds->max.y)); |
2061 | } |
2062 | |
2063 | void map_track_draw_seg(map_t *map, track_seg_t *seg) { |
2064 | bounds_t *bounds = map->appdata->osm->bounds; |
2065 | |
2066 | /* a track_seg needs at least 2 points to be drawn */ |
2067 | guint pnum = track_seg_points(seg); |
2068 | printf("seg of length %d\n", pnum); |
2069 | |
2070 | if(!pnum) |
2071 | return; |
2072 | |
2073 | /* nothing should have been drawn by now ... */ |
2074 | g_assert(!seg->item_chain); |
2075 | |
2076 | track_item_chain_t **itemP = &seg->item_chain; |
2077 | track_point_t *track_point = seg->track_point; |
2078 | while(track_point) { |
2079 | lpos_t lpos; |
2080 | |
2081 | /* skip all points not on screen */ |
2082 | track_point_t *last = NULL; |
2083 | while(track_point && !track_pos2lpos(bounds, &track_point->pos, &lpos)) { |
2084 | last = track_point; |
2085 | track_point = track_point->next; |
2086 | } |
2087 | |
2088 | int visible = 0; |
2089 | |
2090 | /* count nodes that _are_ on screen */ |
2091 | track_point_t *tmp = track_point; |
2092 | while(tmp && track_pos2lpos(bounds, &tmp->pos, &lpos)) { |
2093 | tmp = tmp->next; |
2094 | visible++; |
2095 | } |
2096 | |
2097 | /* actually start drawing with the last position that was offscreen */ |
2098 | /* so the track nicely enters the viewing area */ |
2099 | if(last) { |
2100 | track_point = last; |
2101 | visible++; |
2102 | } |
2103 | |
2104 | /* also use last one that's offscreen to nicely leave the visible area */ |
2105 | if(tmp && tmp->next) |
2106 | visible++; |
2107 | |
2108 | /* allocate space for nodes */ |
2109 | canvas_points_t *points = canvas_points_new(visible); |
2110 | |
2111 | printf("visible are %d\n", visible); |
2112 | int point; |
2113 | for(point=0;point<visible;point++) { |
2114 | track_pos2lpos(bounds, &track_point->pos, &lpos); |
2115 | |
2116 | points->coords[2*point+0] = lpos.x; |
2117 | points->coords[2*point+1] = lpos.y; |
2118 | track_point = track_point->next; |
2119 | } |
2120 | |
2121 | *itemP = g_new0(track_item_chain_t, 1); |
2122 | (*itemP)->item = canvas_polyline_new(map->canvas, CANVAS_GROUP_TRACK, |
2123 | points, map->style->track.width, map->style->track.color); |
2124 | itemP = &(*itemP)->next; |
2125 | |
2126 | canvas_points_free(points); |
2127 | } |
2128 | } |
2129 | |
2130 | /* update the last visible fragment of this segment since a */ |
2131 | /* gps position may have been added */ |
2132 | void map_track_update_seg(map_t *map, track_seg_t *seg) { |
2133 | bounds_t *bounds = map->appdata->osm->bounds; |
2134 | |
2135 | printf("-- APPENDING TO TRACK --\n"); |
2136 | |
2137 | /* a track_seg needs at least 2 points to be drawn */ |
2138 | guint pnum = track_seg_points(seg); |
2139 | printf("seg of length %d\n", pnum); |
2140 | |
2141 | /* there are two cases: either the second last point was on screen */ |
2142 | /* or it wasn't. We'll have to start a new screen item if the latter */ |
2143 | /* is the case */ |
2144 | |
2145 | /* search last point */ |
2146 | track_point_t *begin = seg->track_point, *second_last = seg->track_point; |
2147 | lpos_t lpos; |
2148 | while(second_last && second_last->next && second_last->next->next) { |
2149 | if(!track_pos2lpos(bounds, &second_last->pos, &lpos)) |
2150 | begin = second_last; |
2151 | |
2152 | second_last = second_last->next; |
2153 | } |
2154 | track_point_t *last = second_last->next; |
2155 | |
2156 | /* since we are updating an existing track, it sure has at least two */ |
2157 | /* points, second_last must be valid and its "next" (last) also */ |
2158 | g_assert(second_last); |
2159 | g_assert(last); |
2160 | |
2161 | /* check if the last and second_last points are visible */ |
2162 | gboolean last_is_visible = |
2163 | track_pos2lpos(bounds, &last->pos, &lpos); |
2164 | gboolean second_last_is_visible = |
2165 | track_pos2lpos(bounds, &second_last->pos, &lpos); |
2166 | |
2167 | /* if both are invisible, then nothing has changed on screen */ |
2168 | if(!last_is_visible && !second_last_is_visible) { |
2169 | printf("second_last and last entry are invisible -> doing nothing\n"); |
2170 | return; |
2171 | } |
2172 | |
2173 | /* search last element in item chain */ |
2174 | track_item_chain_t *item = seg->item_chain; |
2175 | while(item && item->next) |
2176 | item = item->next; |
2177 | |
2178 | if(second_last_is_visible) { |
2179 | /* there must be something already on the screen and there must */ |
2180 | /* be visible nodes in the chain */ |
2181 | g_assert(item); |
2182 | g_assert(begin); |
2183 | |
2184 | printf("second_last is visible -> append\n"); |
2185 | |
2186 | /* count points to be placed */ |
2187 | int npoints = 0; |
2188 | track_point_t *tmp = begin; |
2189 | while(tmp) { |
2190 | tmp = tmp->next; |
2191 | npoints++; |
2192 | } |
2193 | |
2194 | printf("updating last segment to %d points\n", npoints); |
2195 | |
2196 | canvas_points_t *points = canvas_points_new(npoints); |
2197 | |
2198 | gint point = 0; |
2199 | while(begin) { |
2200 | track_pos2lpos(bounds, &begin->pos, &lpos); |
2201 | canvas_point_set_pos(points, point++, &lpos); |
2202 | begin = begin->next; |
2203 | } |
2204 | |
2205 | canvas_item_set_points(item->item, points); |
2206 | canvas_points_free(points); |
2207 | |
2208 | } else { |
2209 | printf("second last is invisible -> start new screen segment\n"); |
2210 | |
2211 | /* the search for the "begin" ends with the second_last item */ |
2212 | /* verify the last one also */ |
2213 | if(begin->next && !track_pos2lpos(bounds, &begin->next->pos, &lpos)) |
2214 | begin = begin->next; |
2215 | |
2216 | item->next = g_new0(track_item_chain_t, 1); |
2217 | item = item->next; |
2218 | |
2219 | /* count points to be placed */ |
2220 | int npoints = 0; |
2221 | track_point_t *tmp = begin; |
2222 | while(tmp) { |
2223 | tmp = tmp->next; |
2224 | npoints++; |
2225 | } |
2226 | |
2227 | printf("attaching new segment with %d points\n", npoints); |
2228 | |
2229 | canvas_points_t *points = canvas_points_new(npoints); |
2230 | |
2231 | gint point = 0; |
2232 | while(begin) { |
2233 | track_pos2lpos(bounds, &begin->pos, &lpos); |
2234 | canvas_point_set_pos(points, point++, &lpos); |
2235 | begin = begin->next; |
2236 | } |
2237 | |
2238 | item->item = canvas_polyline_new(map->canvas, CANVAS_GROUP_TRACK, |
2239 | points, map->style->track.width, map->style->track.color); |
2240 | |
2241 | canvas_points_free(points); |
2242 | } |
2243 | |
2244 | } |
2245 | |
2246 | void map_track_draw(map_t *map, track_t *track) { |
2247 | track_seg_t *seg = track->track_seg; |
2248 | |
2249 | /* draw all segments */ |
2250 | while(seg) { |
2251 | map_track_draw_seg(map, seg); |
2252 | seg = seg->next; |
2253 | } |
2254 | } |
2255 | |
2256 | void map_track_remove(appdata_t *appdata) { |
2257 | track_t *track = appdata->track.track; |
2258 | |
2259 | printf("removing track\n"); |
2260 | |
2261 | g_assert(track); |
2262 | |
2263 | /* remove all segments */ |
2264 | track_seg_t *seg = track->track_seg; |
2265 | while(seg) { |
2266 | track_item_chain_t *item = seg->item_chain; |
2267 | while(item) { |
2268 | track_item_chain_t *next = item->next; |
2269 | canvas_item_destroy(item->item); |
2270 | item = next; |
2271 | } |
2272 | |
2273 | seg->item_chain = NULL; |
2274 | seg = seg->next; |
2275 | } |
2276 | } |
2277 | |
2278 | void map_track_pos(appdata_t *appdata, pos_t *pos) { |
2279 | if(appdata->track.gps_item) { |
2280 | canvas_item_destroy(appdata->track.gps_item); |
2281 | appdata->track.gps_item = NULL; |
2282 | } |
2283 | |
2284 | if(pos) { |
2285 | lpos_t lpos; |
2286 | pos2lpos(appdata->osm->bounds, pos, &lpos); |
2287 | |
2288 | appdata->track.gps_item = |
2289 | canvas_circle_new(appdata->map->canvas, CANVAS_GROUP_GPS, |
2290 | lpos.x, lpos.y, appdata->map->style->track.width/2.0, 0, |
2291 | appdata->map->style->track.gps_color, NO_COLOR); |
2292 | } |
2293 | } |
2294 | |
2295 | /* ------------------- map background ------------------ */ |
2296 | |
2297 | void map_remove_bg_image(map_t *map) { |
2298 | if(!map) return; |
2299 | |
2300 | if(map->bg.item) { |
2301 | canvas_item_destroy(map->bg.item); |
2302 | map->bg.item = NULL; |
2303 | } |
2304 | } |
2305 | |
2306 | static gint map_bg_item_destroy_event(GtkWidget *widget, gpointer data) { |
2307 | map_t *map = (map_t*)data; |
2308 | |
2309 | /* destroying background item */ |
2310 | |
2311 | map->bg.item = NULL; |
2312 | if(map->bg.pix) { |
2313 | printf("destroying background item\n"); |
2314 | gdk_pixbuf_unref(map->bg.pix); |
2315 | map->bg.pix = NULL; |
2316 | } |
2317 | return FALSE; |
2318 | } |
2319 | |
2320 | void map_set_bg_image(map_t *map, char *filename) { |
2321 | bounds_t *bounds = map->appdata->osm->bounds; |
2322 | |
2323 | map_remove_bg_image(map); |
2324 | |
2325 | map->bg.pix = gdk_pixbuf_new_from_file(filename, NULL); |
2326 | |
2327 | /* calculate required scale factor */ |
2328 | map->bg.scale.x = (float)(bounds->max.x - bounds->min.x)/ |
2329 | (float)gdk_pixbuf_get_width(map->bg.pix); |
2330 | map->bg.scale.y = (float)(bounds->max.y - bounds->min.y)/ |
2331 | (float)gdk_pixbuf_get_height(map->bg.pix); |
2332 | |
2333 | map->bg.item = canvas_image_new(map->canvas, CANVAS_GROUP_BG, map->bg.pix, |
2334 | bounds->min.x, bounds->min.y, map->bg.scale.x, map->bg.scale.y); |
2335 | |
2336 | canvas_item_destroy_connect(map->bg.item, |
2337 | G_CALLBACK(map_bg_item_destroy_event), map); |
2338 | } |
2339 | |
2340 | |
2341 | /* -------- hide and show objects (for performance reasons) ------- */ |
2342 | |
2343 | void map_hide_selected(appdata_t *appdata) { |
2344 | map_t *map = appdata->map; |
2345 | if(!map) return; |
2346 | |
2347 | if(map->selected.object.type != WAY) { |
2348 | printf("selected item is not a way\n"); |
2349 | return; |
2350 | } |
2351 | |
2352 | way_t *way = map->selected.object.way; |
2353 | printf("hiding way #" ITEM_ID_FORMAT "\n", way->id); |
2354 | |
2355 | map_item_deselect(appdata); |
2356 | way->flags |= OSM_FLAG_HIDDEN; |
2357 | map_item_chain_destroy(&way->map_item_chain); |
2358 | |
2359 | gtk_widget_set_sensitive(appdata->menu_item_map_show_all, TRUE); |
2360 | } |
2361 | |
2362 | void map_show_all(appdata_t *appdata) { |
2363 | map_t *map = appdata->map; |
2364 | if(!map) return; |
2365 | |
2366 | way_t *way = appdata->osm->way; |
2367 | while(way) { |
2368 | if(way->flags & OSM_FLAG_HIDDEN) { |
2369 | way->flags &= ~OSM_FLAG_HIDDEN; |
2370 | map_way_draw(map, way); |
2371 | } |
2372 | |
2373 | way = way->next; |
2374 | } |
2375 | |
2376 | gtk_widget_set_sensitive(appdata->menu_item_map_show_all, FALSE); |
2377 | } |
2378 | |
2379 | static void map_detail_change(map_t *map, float detail) { |
2380 | appdata_t *appdata = map->appdata; |
2381 | |
2382 | /* deselecting anything allows us not to care about automatic deselection */ |
2383 | /* as well as items becoming invisible by the detail change */ |
2384 | map_item_deselect(appdata); |
2385 | |
2386 | map->state->detail = detail; |
2387 | printf("changing detail factor to %f\n", map->state->detail); |
2388 | |
2389 | banner_busy_start(appdata, 1, _("Redrawing")); |
2390 | map_clear(appdata, MAP_LAYER_OBJECTS_ONLY); |
2391 | map_paint(appdata); |
2392 | banner_busy_stop(appdata); |
2393 | } |
2394 | |
2395 | #define DETAIL_STEP 1.5 |
2396 | |
2397 | void map_detail_increase(map_t *map) { |
2398 | if(!map) return; |
2399 | map_detail_change(map, map->state->detail * DETAIL_STEP); |
2400 | } |
2401 | |
2402 | void map_detail_decrease(map_t *map) { |
2403 | if(!map) return; |
2404 | map_detail_change(map, map->state->detail / DETAIL_STEP); |
2405 | } |
2406 | |
2407 | void map_detail_normal(map_t *map) { |
2408 | if(!map) return; |
2409 | map_detail_change(map, 1.0); |
2410 | } |
2411 | |
2412 | // vim:et:ts=8:sw=2:sts=2:ai |