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