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Support for a dashed line style. Tweak Mapnik style to use it, and then compensate a bit for that fact that it makes things slower.
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 | while(tag) { |
60 | if(!collision && info_tag_key_collision(tags, tag)) |
61 | collision = TRUE; |
62 | |
63 | /* we don't have much space, so ignore created_by tag */ |
64 | if(!osm_is_creator_tag(tag)) { |
65 | char *old = str; |
66 | str = g_strdup_printf("%s, %s=%s", old, tag->key, tag->value); |
67 | g_free(old); |
68 | } |
69 | tag = tag->next; |
70 | } |
71 | } |
72 | |
73 | statusbar_set(map->appdata, str, collision); |
74 | g_free(str); |
75 | } |
76 | |
77 | void map_outside_error(appdata_t *appdata) { |
78 | errorf(GTK_WIDGET(appdata->window), |
79 | _("Items must not be placed outside the working area!")); |
80 | } |
81 | |
82 | void map_item_chain_destroy(map_item_chain_t **chainP) { |
83 | if(!*chainP) { |
84 | printf("nothing to destroy!\n"); |
85 | return; |
86 | } |
87 | |
88 | #ifdef DESTROY_WAIT_FOR_GTK |
89 | map_item_chain_t *chain = *chainP; |
90 | while(chain) { |
91 | map_item_chain_t *next = chain->next; |
92 | canvas_item_destroy(chain->map_item->item); |
93 | chain = next; |
94 | } |
95 | |
96 | /* wait until gtks event handling has actually destroyed this item */ |
97 | printf("waiting for item destruction "); |
98 | while(gtk_events_pending() || *chainP) { |
99 | putchar('.'); |
100 | gtk_main_iteration(); |
101 | } |
102 | printf(" ok\n"); |
103 | |
104 | /* the callback routine connected to this item should have been */ |
105 | /* called by now and it has set the chain to NULL */ |
106 | |
107 | #else |
108 | map_item_chain_t *chain = *chainP; |
109 | while(chain) { |
110 | map_item_chain_t *next = chain->next; |
111 | canvas_item_destroy(chain->map_item->item); |
112 | |
113 | g_free(chain); |
114 | chain = next; |
115 | } |
116 | *chainP = NULL; |
117 | #endif |
118 | } |
119 | |
120 | static void map_node_select(appdata_t *appdata, node_t *node) { |
121 | map_t *map = appdata->map; |
122 | map_item_t *map_item = &map->selected; |
123 | |
124 | g_assert(!map->highlight); |
125 | |
126 | map_item->type = MAP_TYPE_NODE; |
127 | map_item->node = node; |
128 | map_item->highlight = FALSE; |
129 | |
130 | /* node may not have any visible representation at all */ |
131 | if(node->map_item_chain) |
132 | map_item->item = node->map_item_chain->map_item->item; |
133 | else |
134 | map_item->item = NULL; |
135 | |
136 | map_statusbar(map, map_item); |
137 | icon_bar_map_item_selected(appdata, map_item, TRUE); |
138 | |
139 | /* highlight node */ |
140 | gint x = map_item->node->lpos.x, y = map_item->node->lpos.y; |
141 | |
142 | /* create a copy of this map item and mark it as being a highlight */ |
143 | map_item_t *new_map_item = g_new0(map_item_t, 1); |
144 | memcpy(new_map_item, map_item, sizeof(map_item_t)); |
145 | new_map_item->highlight = TRUE; |
146 | |
147 | float radius = map->style->highlight.width + map->style->node.radius; |
148 | if(!node->ways) radius += map->style->node.border_radius; |
149 | if(node->icon_buf && map->style->icon.enable) { |
150 | gint w = gdk_pixbuf_get_width(map_item->node->icon_buf); |
151 | gint h = gdk_pixbuf_get_height(map_item->node->icon_buf); |
152 | /* icons are technically square, so a radius slightly bigger */ |
153 | /* than sqrt(2)*MAX(w,h) should fit nicely */ |
154 | radius = 0.75 * map->style->icon.scale * ((w>h)?w:h); |
155 | } |
156 | |
157 | map_hl_circle_new(map, CANVAS_GROUP_NODES_HL, new_map_item, |
158 | x, y, radius, map->style->highlight.color); |
159 | |
160 | if(!map_item->item) { |
161 | /* and draw a fake node */ |
162 | new_map_item = g_new0(map_item_t, 1); |
163 | memcpy(new_map_item, map_item, sizeof(map_item_t)); |
164 | new_map_item->highlight = TRUE; |
165 | map_hl_circle_new(map, CANVAS_GROUP_NODES_HL, new_map_item, |
166 | x, y, map->style->node.radius, |
167 | map->style->highlight.node_color); |
168 | } |
169 | } |
170 | |
171 | void map_way_select(appdata_t *appdata, way_t *way) { |
172 | map_t *map = appdata->map; |
173 | map_item_t *map_item = &map->selected; |
174 | |
175 | g_assert(!map->highlight); |
176 | |
177 | map_item->type = MAP_TYPE_WAY; |
178 | map_item->way = way; |
179 | map_item->highlight = FALSE; |
180 | map_item->item = way->map_item_chain->map_item->item; |
181 | |
182 | map_statusbar(map, map_item); |
183 | icon_bar_map_item_selected(appdata, map_item, TRUE); |
184 | gtk_widget_set_sensitive(appdata->menu_item_map_hide_sel, TRUE); |
185 | |
186 | gint arrow_width = (map_item->way->draw.flags & OSM_DRAW_FLAG_BG)? |
187 | map->style->highlight.width + map_item->way->draw.bg.width/2: |
188 | map->style->highlight.width + map_item->way->draw.width/2; |
189 | |
190 | node_chain_t *node_chain = map_item->way->node_chain; |
191 | node_t *last = NULL; |
192 | while(node_chain) { |
193 | map_item_t item; |
194 | item.type = MAP_TYPE_NODE; |
195 | item.node = node_chain->node; |
196 | |
197 | /* draw an arrow between every two nodes */ |
198 | if(last) { |
199 | /* create a new map item for every arrow */ |
200 | map_item_t *new_map_item = g_new0(map_item_t, 1); |
201 | new_map_item->type = MAP_TYPE_WAY; |
202 | new_map_item->way = way; |
203 | new_map_item->highlight = TRUE; |
204 | |
205 | struct { float x, y;} center, diff; |
206 | center.x = (last->lpos.x + node_chain->node->lpos.x)/2; |
207 | center.y = (last->lpos.y + node_chain->node->lpos.y)/2; |
208 | diff.x = node_chain->node->lpos.x - last->lpos.x; |
209 | diff.y = node_chain->node->lpos.y - last->lpos.y; |
210 | |
211 | float len = sqrt(pow(diff.x, 2)+pow(diff.y, 2)); |
212 | if(len > map->style->highlight.arrow_limit*arrow_width) { |
213 | len /= arrow_width; |
214 | diff.x = diff.x / len; |
215 | diff.y = diff.y / len; |
216 | |
217 | canvas_points_t *points = canvas_points_new(4); |
218 | points->coords[2*0+0] = points->coords[2*3+0] = center.x + diff.x; |
219 | points->coords[2*0+1] = points->coords[2*3+1] = center.y + diff.y; |
220 | points->coords[2*1+0] = center.x + diff.y - diff.x; |
221 | points->coords[2*1+1] = center.y - diff.x - diff.y; |
222 | points->coords[2*2+0] = center.x - diff.y - diff.x; |
223 | points->coords[2*2+1] = center.y + diff.x - diff.y; |
224 | |
225 | map_hl_polygon_new(map, CANVAS_GROUP_NODES_HL, new_map_item, |
226 | points, map->style->highlight.arrow_color); |
227 | |
228 | canvas_points_free(points); |
229 | } |
230 | } |
231 | |
232 | if(!map_hl_item_is_highlighted(map, &item)) { |
233 | |
234 | /* create a new map item for every node */ |
235 | map_item_t *new_map_item = g_new0(map_item_t, 1); |
236 | new_map_item->type = MAP_TYPE_NODE; |
237 | new_map_item->node = node_chain->node; |
238 | new_map_item->highlight = TRUE; |
239 | |
240 | gint x = node_chain->node->lpos.x; |
241 | gint y = node_chain->node->lpos.y; |
242 | |
243 | map_hl_circle_new(map, CANVAS_GROUP_NODES_HL, new_map_item, |
244 | x, y, map->style->node.radius, |
245 | map->style->highlight.node_color); |
246 | } |
247 | |
248 | last = node_chain->node; |
249 | node_chain = node_chain->next; |
250 | } |
251 | |
252 | /* a way needs at least 2 points to be drawn */ |
253 | guint nodes = osm_way_number_of_nodes(way); |
254 | if(nodes > 1) { |
255 | |
256 | /* allocate space for nodes */ |
257 | canvas_points_t *points = canvas_points_new(nodes); |
258 | |
259 | int node = 0; |
260 | node_chain = map_item->way->node_chain; |
261 | while(node_chain) { |
262 | canvas_point_set_pos(points, node++, &node_chain->node->lpos); |
263 | node_chain = node_chain->next; |
264 | } |
265 | |
266 | /* create a copy of this map item and mark it as being a highlight */ |
267 | map_item_t *new_map_item = g_new0(map_item_t, 1); |
268 | memcpy(new_map_item, map_item, sizeof(map_item_t)); |
269 | new_map_item->highlight = TRUE; |
270 | |
271 | map_hl_polyline_new(map, CANVAS_GROUP_WAYS_HL, new_map_item, points, |
272 | (map_item->way->draw.flags & OSM_DRAW_FLAG_BG)? |
273 | 2*map->style->highlight.width + map_item->way->draw.bg.width: |
274 | 2*map->style->highlight.width + map_item->way->draw.width, |
275 | map->style->highlight.color); |
276 | |
277 | canvas_points_free(points); |
278 | } |
279 | } |
280 | |
281 | static void map_item_select(appdata_t *appdata, map_item_t *map_item) { |
282 | switch(map_item->type) { |
283 | case MAP_TYPE_NODE: |
284 | map_node_select(appdata, map_item->node); |
285 | break; |
286 | case MAP_TYPE_WAY: |
287 | map_way_select(appdata, map_item->way); |
288 | break; |
289 | default: |
290 | g_assert((map_item->type == MAP_TYPE_NODE)|| |
291 | (map_item->type == MAP_TYPE_WAY)); |
292 | break; |
293 | } |
294 | } |
295 | |
296 | void map_item_deselect(appdata_t *appdata) { |
297 | |
298 | /* save tags for "last" function in info dialog */ |
299 | if(appdata->map->selected.type == MAP_TYPE_NODE) { |
300 | if(appdata->map->last_node_tags) |
301 | osm_tags_free(appdata->map->last_node_tags); |
302 | |
303 | appdata->map->last_node_tags = |
304 | osm_tags_copy(appdata->map->selected.node->tag, FALSE); |
305 | } else if(appdata->map->selected.type == MAP_TYPE_WAY) { |
306 | if(appdata->map->last_way_tags) |
307 | osm_tags_free(appdata->map->last_way_tags); |
308 | |
309 | appdata->map->last_way_tags = |
310 | osm_tags_copy(appdata->map->selected.way->tag, FALSE); |
311 | } |
312 | |
313 | /* remove statusbar message */ |
314 | statusbar_set(appdata, NULL, FALSE); |
315 | |
316 | /* disable/enable icons in icon bar */ |
317 | icon_bar_map_item_selected(appdata, NULL, FALSE); |
318 | gtk_widget_set_sensitive(appdata->menu_item_map_hide_sel, FALSE); |
319 | |
320 | /* remove highlight */ |
321 | map_hl_remove(appdata); |
322 | |
323 | /* forget about selection */ |
324 | appdata->map->selected.type = MAP_TYPE_ILLEGAL; |
325 | } |
326 | |
327 | /* called whenever a map item is to be destroyed */ |
328 | static gint map_item_destroy_event(GtkWidget *widget, gpointer data) { |
329 | map_item_t *map_item = (map_item_t*)data; |
330 | |
331 | // printf("destroying map_item @ %p\n", map_item); |
332 | |
333 | #ifdef DESTROY_WAIT_FOR_GTK |
334 | /* remove item from nodes/ways map_item_chain */ |
335 | map_item_chain_t **chain = NULL; |
336 | if(map_item->type == MAP_TYPE_NODE) |
337 | chain = &map_item->node->map_item_chain; |
338 | else if(map_item->type == MAP_TYPE_WAY) |
339 | chain = &map_item->way->map_item_chain; |
340 | |
341 | /* there must be a chain with content, otherwise things are broken */ |
342 | g_assert(chain); |
343 | g_assert(*chain); |
344 | |
345 | /* search current map_item, ... */ |
346 | while(*chain && (*chain)->map_item != map_item) |
347 | chain = &(*chain)->next; |
348 | |
349 | g_assert(*chain); |
350 | |
351 | /* ... remove it from chain and free it */ |
352 | map_item_chain_t *tmp = *chain; |
353 | *chain = (*chain)->next; |
354 | |
355 | g_free(tmp); |
356 | #endif |
357 | |
358 | g_free(map_item); |
359 | return FALSE; |
360 | } |
361 | |
362 | static canvas_item_t *map_node_new(map_t *map, node_t *node, gint radius, |
363 | gint width, canvas_color_t fill, canvas_color_t border) { |
364 | |
365 | map_item_t *map_item = g_new0(map_item_t, 1); |
366 | map_item->type = MAP_TYPE_NODE; |
367 | map_item->node = node; |
368 | |
369 | if(!node->icon_buf || !map->style->icon.enable) |
370 | map_item->item = canvas_circle_new(map, CANVAS_GROUP_NODES, |
371 | node->lpos.x, node->lpos.y, radius, width, fill, border); |
372 | else |
373 | map_item->item = canvas_image_new(map, CANVAS_GROUP_NODES, |
374 | node->icon_buf, |
375 | node->lpos.x - map->style->icon.scale/2 * |
376 | gdk_pixbuf_get_width(node->icon_buf), |
377 | node->lpos.y - map->style->icon.scale/2 * |
378 | gdk_pixbuf_get_height(node->icon_buf), |
379 | map->style->icon.scale,map->style->icon.scale); |
380 | |
381 | canvas_item_set_zoom_max(map_item->item, node->zoom_max); |
382 | |
383 | /* attach map_item to nodes map_item_chain */ |
384 | map_item_chain_t **chain = &node->map_item_chain; |
385 | while(*chain) chain = &(*chain)->next; |
386 | *chain = g_new0(map_item_chain_t, 1); |
387 | (*chain)->map_item = map_item; |
388 | |
389 | canvas_item_set_user_data(map_item->item, map_item); |
390 | |
391 | canvas_item_destroy_connect(map_item->item, |
392 | G_CALLBACK(map_item_destroy_event), map_item); |
393 | |
394 | return map_item->item; |
395 | } |
396 | |
397 | /* in the rare case that a way consists of only one node, it is */ |
398 | /* drawn as a circle. This e.g. happens when drawing a new way */ |
399 | static canvas_item_t *map_way_single_new(map_t *map, way_t *way, gint radius, |
400 | gint width, canvas_color_t fill, canvas_color_t border) { |
401 | |
402 | map_item_t *map_item = g_new0(map_item_t, 1); |
403 | map_item->type = MAP_TYPE_WAY; |
404 | map_item->way = way; |
405 | map_item->item = canvas_circle_new(map, CANVAS_GROUP_WAYS, |
406 | way->node_chain->node->lpos.x, way->node_chain->node->lpos.y, |
407 | radius, width, fill, border); |
408 | |
409 | // TODO: decide: do we need canvas_item_set_zoom_max() here too? |
410 | |
411 | /* attach map_item to nodes map_item_chain */ |
412 | map_item_chain_t **chain = &way->map_item_chain; |
413 | while(*chain) chain = &(*chain)->next; |
414 | *chain = g_new0(map_item_chain_t, 1); |
415 | (*chain)->map_item = map_item; |
416 | |
417 | canvas_item_set_user_data(map_item->item, map_item); |
418 | |
419 | canvas_item_destroy_connect(map_item->item, |
420 | G_CALLBACK(map_item_destroy_event), map_item); |
421 | |
422 | return map_item->item; |
423 | } |
424 | |
425 | static canvas_item_t *map_way_new(map_t *map, canvas_group_t group, |
426 | way_t *way, canvas_points_t *points, gint width, |
427 | canvas_color_t color, canvas_color_t fill_color) { |
428 | map_item_t *map_item = g_new0(map_item_t, 1); |
429 | map_item->type = MAP_TYPE_WAY; |
430 | map_item->way = way; |
431 | |
432 | if(way->draw.flags & OSM_DRAW_FLAG_AREA) { |
433 | if(map->style->area.opaque) |
434 | map_item->item = canvas_polygon_new(map, group, points, |
435 | width, color, fill_color); |
436 | else |
437 | map_item->item = canvas_polyline_new(map, group, points, |
438 | width, color); |
439 | } else { |
440 | map_item->item = canvas_polyline_new(map, group, points, width, color); |
441 | } |
442 | |
443 | canvas_item_set_zoom_max(map_item->item, way->draw.zoom_max); |
444 | |
445 | if (group != CANVAS_GROUP_WAYS_OL) |
446 | if (way->draw.dashed) |
447 | canvas_item_set_dashed(map_item->item); |
448 | |
449 | /* attach map_item to ways map_item_chain */ |
450 | map_item_chain_t **chain = &way->map_item_chain; |
451 | while(*chain) chain = &(*chain)->next; |
452 | *chain = g_new0(map_item_chain_t, 1); |
453 | (*chain)->map_item = map_item; |
454 | |
455 | canvas_item_set_user_data(map_item->item, map_item); |
456 | |
457 | canvas_item_destroy_connect(map_item->item, |
458 | G_CALLBACK(map_item_destroy_event), map_item); |
459 | |
460 | return map_item->item; |
461 | } |
462 | |
463 | void map_show_node(map_t *map, node_t *node) { |
464 | map_node_new(map, node, map->style->node.radius, 0, |
465 | RGB2CANVAS(map->style->node.color), 0); |
466 | } |
467 | |
468 | void map_way_draw(map_t *map, way_t *way) { |
469 | |
470 | /* don't draw a way that's not there anymore */ |
471 | if(way->flags & (OSM_FLAG_DELETED | OSM_FLAG_HIDDEN)) |
472 | return; |
473 | |
474 | /* allocate space for nodes */ |
475 | /* a way needs at least 2 points to be drawn */ |
476 | guint nodes = osm_way_number_of_nodes(way); |
477 | if(nodes == 1) { |
478 | /* draw a single dot where this single node is */ |
479 | map_way_single_new(map, way, map->style->node.radius, 0, |
480 | RGB2CANVAS(map->style->node.color), 0); |
481 | } else { |
482 | canvas_points_t *points = canvas_points_new(nodes); |
483 | |
484 | int node = 0; |
485 | node_chain_t *node_chain = way->node_chain; |
486 | while(node_chain) { |
487 | canvas_point_set_pos(points, node++, &node_chain->node->lpos); |
488 | node_chain = node_chain->next; |
489 | } |
490 | |
491 | /* draw way */ |
492 | if(way->draw.flags & OSM_DRAW_FLAG_AREA) { |
493 | map_way_new(map, CANVAS_GROUP_POLYGONS, way, points, |
494 | way->draw.width, way->draw.color, way->draw.area.color); |
495 | } else { |
496 | map_way_new(map, CANVAS_GROUP_WAYS, way, points, |
497 | way->draw.width, way->draw.color, NO_COLOR); |
498 | |
499 | if(way->draw.flags & OSM_DRAW_FLAG_BG) |
500 | map_way_new(map, CANVAS_GROUP_WAYS_OL, way, points, |
501 | way->draw.bg.width, way->draw.bg.color, NO_COLOR); |
502 | } |
503 | canvas_points_free(points); |
504 | } |
505 | } |
506 | |
507 | void map_node_draw(map_t *map, node_t *node) { |
508 | /* don't draw a node that's not there anymore */ |
509 | if(node->flags & OSM_FLAG_DELETED) |
510 | return; |
511 | |
512 | if(!node->ways) |
513 | map_node_new(map, node, |
514 | map->style->node.radius, |
515 | map->style->node.border_radius, |
516 | RGBA2CANVAS(map->style->node.fill_color, |
517 | map->style->node.has_fill_color?0xff:0x00), |
518 | RGB2CANVAS(map->style->node.color)); |
519 | |
520 | else if(map->style->node.show_untagged || osm_node_has_tag(node)) |
521 | map_node_new(map, node, |
522 | map->style->node.radius, 0, |
523 | RGB2CANVAS(map->style->node.color), 0); |
524 | } |
525 | |
526 | static void map_item_draw(map_t *map, map_item_t *map_item) { |
527 | switch(map_item->type) { |
528 | case MAP_TYPE_NODE: |
529 | map_node_draw(map, map_item->node); |
530 | break; |
531 | case MAP_TYPE_WAY: |
532 | map_way_draw(map, map_item->way); |
533 | break; |
534 | default: |
535 | g_assert((map_item->type == MAP_TYPE_NODE) || |
536 | (map_item->type == MAP_TYPE_WAY)); |
537 | } |
538 | } |
539 | |
540 | static void map_item_remove(map_t *map, map_item_t *map_item) { |
541 | map_item_chain_t **chainP = NULL; |
542 | |
543 | switch(map_item->type) { |
544 | case MAP_TYPE_NODE: |
545 | chainP = &map_item->node->map_item_chain; |
546 | break; |
547 | case MAP_TYPE_WAY: |
548 | chainP = &map_item->way->map_item_chain; |
549 | break; |
550 | default: |
551 | g_assert((map_item->type == MAP_TYPE_NODE) || |
552 | (map_item->type == MAP_TYPE_WAY)); |
553 | } |
554 | |
555 | map_item_chain_destroy(chainP); |
556 | } |
557 | |
558 | static void map_item_init(style_t *style, map_item_t *map_item) { |
559 | switch (map_item->type){ |
560 | case MAP_TYPE_WAY: |
561 | josm_elemstyles_colorize_way(style, map_item->way); |
562 | break; |
563 | case MAP_TYPE_NODE: |
564 | josm_elemstyles_colorize_node(style, map_item->node); |
565 | break; |
566 | default: |
567 | g_assert((map_item->type == MAP_TYPE_NODE) || |
568 | (map_item->type == MAP_TYPE_WAY)); |
569 | } |
570 | } |
571 | |
572 | void map_item_redraw(appdata_t *appdata, map_item_t *map_item) { |
573 | map_item_t item = *map_item; |
574 | |
575 | /* check if the item to be redrawn is the selected one */ |
576 | gboolean is_selected = FALSE; |
577 | if(map_item->ptr == appdata->map->selected.ptr) { |
578 | map_item_deselect(appdata); |
579 | is_selected = TRUE; |
580 | } |
581 | |
582 | map_item_remove(appdata->map, &item); |
583 | map_item_init(appdata->map->style, &item); |
584 | map_item_draw(appdata->map, &item); |
585 | |
586 | /* restore selection if there was one */ |
587 | if(is_selected) |
588 | map_item_select(appdata, &item); |
589 | } |
590 | |
591 | static void map_frisket_rectangle(canvas_points_t *points, |
592 | gint x0, gint x1, gint y0, gint y1) { |
593 | points->coords[2*0+0] = points->coords[2*3+0] = points->coords[2*4+0] = x0; |
594 | points->coords[2*1+0] = points->coords[2*2+0] = x1; |
595 | points->coords[2*0+1] = points->coords[2*1+1] = points->coords[2*4+1] = y0; |
596 | points->coords[2*2+1] = points->coords[2*3+1] = y1; |
597 | } |
598 | |
599 | /* Draw the frisket area which masks off areas it'd be unsafe to edit, |
600 | * plus its inner edge marker line */ |
601 | void map_frisket_draw(map_t *map, bounds_t *bounds) { |
602 | canvas_points_t *points = canvas_points_new(5); |
603 | |
604 | /* don't draw frisket at all if it's completely transparent */ |
605 | if(map->style->frisket.opaque) { |
606 | elemstyle_color_t color = |
607 | (map->style->background.color<<8) | map->style->frisket.opaque; |
608 | |
609 | float mult = map->style->frisket.mult; |
610 | |
611 | /* top rectangle */ |
612 | map_frisket_rectangle(points, mult*bounds->min.x, mult*bounds->max.x, |
613 | mult*bounds->min.y, bounds->min.y); |
614 | canvas_polygon_new(map, CANVAS_GROUP_NODES, points, 1, NO_COLOR, color); |
615 | |
616 | /* bottom rectangle */ |
617 | map_frisket_rectangle(points, mult*bounds->min.x, mult*bounds->max.x, |
618 | bounds->max.y, mult*bounds->max.y); |
619 | canvas_polygon_new(map, CANVAS_GROUP_NODES, points, 1, NO_COLOR, color); |
620 | |
621 | /* left rectangle */ |
622 | map_frisket_rectangle(points, mult*bounds->min.x, bounds->min.x, |
623 | mult*bounds->min.y, mult*bounds->max.y); |
624 | canvas_polygon_new(map, CANVAS_GROUP_NODES, points, 1, NO_COLOR, color); |
625 | |
626 | /* right rectangle */ |
627 | map_frisket_rectangle(points, bounds->max.x, mult*bounds->max.x, |
628 | mult*bounds->min.y, mult*bounds->max.y); |
629 | canvas_polygon_new(map, CANVAS_GROUP_NODES, points, 1, NO_COLOR, color); |
630 | |
631 | } |
632 | |
633 | if(map->style->frisket.border.present) { |
634 | // Edge marker line |
635 | gint ew2 = map->style->frisket.border.width/2; |
636 | map_frisket_rectangle(points, |
637 | bounds->min.x-ew2, bounds->max.x+ew2, |
638 | bounds->min.y-ew2, bounds->max.y+ew2); |
639 | |
640 | canvas_polyline_new(map, CANVAS_GROUP_NODES, points, |
641 | map->style->frisket.border.width, |
642 | map->style->frisket.border.color); |
643 | |
644 | } |
645 | canvas_points_free(points); |
646 | } |
647 | |
648 | static void map_draw(map_t *map, osm_t *osm) { |
649 | g_assert(map->canvas); |
650 | |
651 | printf("drawing ways ...\n"); |
652 | way_t *way = osm->way; |
653 | while(way) { |
654 | map_way_draw(map, way); |
655 | way = way->next; |
656 | } |
657 | |
658 | printf("drawing single nodes ...\n"); |
659 | node_t *node = osm->node; |
660 | while(node) { |
661 | map_node_draw(map, node); |
662 | node = node->next; |
663 | } |
664 | |
665 | printf("drawing frisket...\n"); |
666 | map_frisket_draw(map, osm->bounds); |
667 | } |
668 | |
669 | void map_state_free(map_state_t *state) { |
670 | if(!state) return; |
671 | |
672 | /* free state of noone else references it */ |
673 | if(state->refcount > 1) |
674 | state->refcount--; |
675 | else |
676 | g_free(state); |
677 | } |
678 | |
679 | void map_free_map_item_chains(appdata_t *appdata) { |
680 | if(!appdata->osm) return; |
681 | |
682 | #ifndef DESTROY_WAIT_FOR_GTK |
683 | printf(" DESTROY_WAIT_FOR_GTK not set, removing all chains now\n"); |
684 | |
685 | /* free all map_item_chains */ |
686 | node_t *node = appdata->osm->node; |
687 | while(node) { |
688 | map_item_chain_t *chain = node->map_item_chain; |
689 | while(chain) { |
690 | map_item_chain_t *next = chain->next; |
691 | g_free(chain); |
692 | chain = next; |
693 | } |
694 | node->map_item_chain = NULL; |
695 | node = node->next; |
696 | } |
697 | |
698 | way_t *way = appdata->osm->way; |
699 | while(way) { |
700 | map_item_chain_t *chain = way->map_item_chain; |
701 | while(chain) { |
702 | map_item_chain_t *next = chain->next; |
703 | g_free(chain); |
704 | chain = next; |
705 | } |
706 | way->map_item_chain = NULL; |
707 | way = way->next; |
708 | } |
709 | #endif |
710 | } |
711 | |
712 | static gint map_destroy_event(GtkWidget *widget, gpointer data) { |
713 | appdata_t *appdata = (appdata_t*)data; |
714 | map_t *map = appdata->map; |
715 | |
716 | printf("destroying entire map\n"); |
717 | |
718 | map_free_map_item_chains(appdata); |
719 | |
720 | /* free buffered tags */ |
721 | if(map->last_node_tags) osm_tags_free(map->last_node_tags); |
722 | if(map->last_way_tags) osm_tags_free(map->last_way_tags); |
723 | |
724 | map_state_free(map->state); |
725 | |
726 | if(map->style) |
727 | style_free(map->style); |
728 | |
729 | /* destroy existing highlight */ |
730 | if(map->highlight) { |
731 | printf("removing highlight\n"); |
732 | |
733 | map_highlight_t *hl = map->highlight; |
734 | while(hl) { |
735 | map_highlight_t *next = hl->next; |
736 | g_free(hl); |
737 | hl = next; |
738 | } |
739 | } |
740 | |
741 | g_free(map); |
742 | |
743 | appdata->map = NULL; |
744 | |
745 | return FALSE; |
746 | } |
747 | |
748 | /* get the item at position x, y */ |
749 | map_item_t *map_item_at(map_t *map, gint x, gint y) { |
750 | printf("map check at %d/%d\n", x, y); |
751 | |
752 | canvas_window2world(map->canvas, x, y, &x, &y); |
753 | |
754 | printf("world check at %d/%d\n", x, y); |
755 | |
756 | canvas_item_t *item = canvas_get_item_at(map->canvas, x, y); |
757 | |
758 | if(!item) { |
759 | printf(" there's no item\n"); |
760 | return NULL; |
761 | } |
762 | |
763 | printf(" there's an item (%p)\n", item); |
764 | |
765 | map_item_t *map_item = canvas_item_get_user_data(item); |
766 | |
767 | if(!map_item) { |
768 | printf(" item has no user data!\n"); |
769 | return NULL; |
770 | } |
771 | |
772 | if(map_item->highlight) |
773 | printf(" item is highlight\n"); |
774 | |
775 | switch(map_item->type) { |
776 | case MAP_TYPE_NODE: |
777 | printf(" item is node #%ld\n", map_item->node->id); |
778 | break; |
779 | case MAP_TYPE_WAY: |
780 | printf(" item is way #%ld\n", map_item->way->id); |
781 | break; |
782 | default: |
783 | printf(" unknown item\n"); |
784 | break; |
785 | } |
786 | |
787 | return map_item; |
788 | } |
789 | |
790 | /* get the real item (no highlight) at x, y */ |
791 | static map_item_t *map_real_item_at(map_t *map, gint x, gint y) { |
792 | map_item_t *map_item = map_item_at(map, x, y); |
793 | |
794 | /* no item or already a real one */ |
795 | if(!map_item || !map_item->highlight) return map_item; |
796 | |
797 | /* get the item (parent) this item is the highlight of */ |
798 | map_item_t *parent = NULL; |
799 | switch(map_item->type) { |
800 | |
801 | case MAP_TYPE_NODE: |
802 | if(map_item->node->map_item_chain) |
803 | parent = map_item->node->map_item_chain->map_item; |
804 | |
805 | if(parent) |
806 | printf(" using parent item node #%ld\n", parent->node->id); |
807 | break; |
808 | |
809 | case MAP_TYPE_WAY: |
810 | if(map_item->way->map_item_chain) |
811 | parent = map_item->way->map_item_chain->map_item; |
812 | |
813 | if(parent) |
814 | printf(" using parent item way #%ld\n", parent->way->id); |
815 | break; |
816 | |
817 | default: |
818 | g_assert((map_item->type == MAP_TYPE_NODE) || |
819 | (map_item->type == MAP_TYPE_WAY)); |
820 | break; |
821 | } |
822 | |
823 | if(parent) |
824 | map_item = parent; |
825 | else |
826 | printf(" no parent, working on highlight itself\n"); |
827 | |
828 | return map_item; |
829 | } |
830 | |
831 | |
832 | |
833 | #ifdef USE_GOOCANVAS |
834 | |
835 | /* Limitations on the amount by which we can scroll. Keeps part of the |
836 | * map visible at all times */ |
837 | static void map_limit_scroll(map_t *map, gint *sx, gint *sy) { |
838 | gdouble zoom = goo_canvas_get_scale(GOO_CANVAS(map->canvas)); |
839 | |
840 | gint sx_cu = *sx / zoom; |
841 | gint sy_cu = *sy / zoom; |
842 | |
843 | // Canvas viewport dimensions |
844 | GtkAllocation *a = >K_WIDGET(map->canvas)->allocation; |
845 | gint aw_cu = a->width / zoom; |
846 | gint ah_cu = a->height / zoom; |
847 | |
848 | // Data rect minimum and maximum |
849 | gint min_x, min_y, max_x, max_y; |
850 | min_x = map->appdata->osm->bounds->min.x; |
851 | min_y = map->appdata->osm->bounds->min.y; |
852 | max_x = map->appdata->osm->bounds->max.x; |
853 | max_y = map->appdata->osm->bounds->max.y; |
854 | |
855 | // limit stops - prevent scrolling beyond these |
856 | gint min_sy_cu = 0.95*(min_y - ah_cu); |
857 | gint min_sx_cu = 0.95*(min_x - aw_cu); |
858 | gint max_sy_cu = 0.95*(max_y); |
859 | gint max_sx_cu = 0.95*(max_x); |
860 | if (sy_cu < min_sy_cu) { *sy = min_sy_cu*zoom; } |
861 | if (sx_cu < min_sx_cu) { *sx = min_sx_cu*zoom; } |
862 | if (sy_cu > max_sy_cu) { *sy = max_sy_cu*zoom; } |
863 | if (sx_cu > max_sx_cu) { *sx = max_sx_cu*zoom; } |
864 | } |
865 | |
866 | |
867 | /* Limit a proposed zoom factor to sane ranges. |
868 | * Specifically the map is allowed to be no smaller than the viewport. */ |
869 | static gboolean map_limit_zoom(map_t *map, gdouble *zoom) { |
870 | // Data rect minimum and maximum |
871 | gint min_x, min_y, max_x, max_y; |
872 | min_x = map->appdata->osm->bounds->min.x; |
873 | min_y = map->appdata->osm->bounds->min.y; |
874 | max_x = map->appdata->osm->bounds->max.x; |
875 | max_y = map->appdata->osm->bounds->max.y; |
876 | |
877 | // Canvas viewport dimensions |
878 | GtkAllocation *a = >K_WIDGET(map->canvas)->allocation; |
879 | gint ah_cu = a->height / *zoom; |
880 | gint aw_cu = a->width / *zoom; |
881 | |
882 | gdouble oldzoom = *zoom; |
883 | if (ah_cu < aw_cu) { |
884 | gint lim_h = ah_cu*0.95; |
885 | if (max_y-min_y < lim_h) { |
886 | gdouble corr = ((gdouble)max_y-min_y) / (gdouble)lim_h; |
887 | *zoom /= corr; |
888 | } |
889 | } |
890 | else { |
891 | gint lim_w = aw_cu*0.95; |
892 | if (max_x-min_x < lim_w) { |
893 | gdouble corr = ((gdouble)max_x-min_x) / (gdouble)lim_w; |
894 | *zoom /= corr; |
895 | } |
896 | } |
897 | if (*zoom != oldzoom) { |
898 | printf("Can't zoom further out\n"); |
899 | return 1; |
900 | } |
901 | return 0; |
902 | } |
903 | |
904 | |
905 | #if 0 |
906 | /* Scroll the map a little towards the centre from where it is right now. |
907 | * This is used as a cute recentring trick when the map is at its outer |
908 | * scroll limit. */ |
909 | static void map_scroll_towards_centre(map_t *map, gdouble amt) { |
910 | gint sx, sy, sx_orig, sy_orig; |
911 | canvas_get_scroll_offsets(map->canvas, &sx, &sy); |
912 | gdouble zoom = goo_canvas_get_scale(GOO_CANVAS(map->canvas)); |
913 | sx_orig=sx; |
914 | sy_orig=sy; |
915 | |
916 | // Work in canvas units |
917 | gdouble sx_cu = sx / zoom; |
918 | gdouble sy_cu = sy / zoom; |
919 | |
920 | // Map bounds |
921 | gdouble bmin_x_cu, bmin_y_cu, bmax_x_cu, bmax_y_cu; |
922 | bmin_x_cu = map->appdata->osm->bounds->min.x; |
923 | bmin_y_cu = map->appdata->osm->bounds->min.y; |
924 | bmax_x_cu = map->appdata->osm->bounds->max.x; |
925 | bmax_y_cu = map->appdata->osm->bounds->max.y; |
926 | |
927 | // Canvas viewport dimensions |
928 | GtkAllocation *a = >K_WIDGET(map->canvas)->allocation; |
929 | gdouble ah_cu = a->height / zoom; |
930 | gdouble aw_cu = a->width / zoom; |
931 | |
932 | // Scroll offsets that would recentre the map |
933 | gdouble centre_sx_cu, centre_sy_cu; |
934 | centre_sx_cu = - (aw_cu/2); |
935 | centre_sy_cu = - (ah_cu/2); |
936 | |
937 | // Move towards centre by a given fraction of the whole map |
938 | if (sx_cu > centre_sx_cu) { |
939 | sx_cu -= ((bmax_x_cu - bmin_x_cu) * amt); |
940 | if (sx_cu < centre_sx_cu) { |
941 | printf("force-centre-x\n"); |
942 | sx_cu = centre_sx_cu; |
943 | } |
944 | } |
945 | if (sx_cu < centre_sx_cu) { |
946 | sx_cu += ((bmax_x_cu - bmin_x_cu) * amt); |
947 | if (sx_cu > centre_sx_cu) { |
948 | printf("force-centre-x\n"); |
949 | sx_cu = centre_sx_cu; |
950 | } |
951 | } |
952 | |
953 | if (sy_cu > centre_sy_cu) { |
954 | sy_cu -= ((bmax_y_cu - bmin_y_cu) * amt); |
955 | if (sy_cu < centre_sy_cu) { |
956 | printf("force-centre-y\n"); |
957 | sy_cu = centre_sy_cu; |
958 | } |
959 | } |
960 | if (sy_cu < centre_sy_cu) { |
961 | sy_cu += ((bmax_y_cu - bmin_y_cu) * amt); |
962 | if (sy_cu > centre_sy_cu) { |
963 | printf("force-centre-y\n"); |
964 | sy_cu = centre_sy_cu; |
965 | } |
966 | } |
967 | |
968 | // Back to pixels for setting the scroll |
969 | sx = (gint)(sx_cu * zoom); |
970 | sy = (gint)(sy_cu * zoom); |
971 | canvas_scroll_to(map->canvas, sx, sy); |
972 | map->state->scroll_offset.x = sx; |
973 | map->state->scroll_offset.y = sy; |
974 | } |
975 | #endif // #if 0 |
976 | |
977 | /* |
978 | * Scroll the map to a point if that point is currently offscreen. |
979 | */ |
980 | void map_scroll_to_if_offscreen(map_t *map, lpos_t *lpos) { |
981 | |
982 | // Ignore anything outside the working area |
983 | if (!(map && map->appdata && map->appdata->osm)) { |
984 | return; |
985 | } |
986 | gint min_x, min_y, max_x, max_y; |
987 | min_x = map->appdata->osm->bounds->min.x; |
988 | min_y = map->appdata->osm->bounds->min.y; |
989 | max_x = map->appdata->osm->bounds->max.x; |
990 | max_y = map->appdata->osm->bounds->max.y; |
991 | if ( (lpos->x > max_x) || (lpos->x < min_x) |
992 | || (lpos->y > max_y) || (lpos->y < min_y)) { |
993 | printf("cannot scroll to (%d, %d): outside the working area\n"); |
994 | return; |
995 | } |
996 | |
997 | // Viewport dimensions in canvas space |
998 | gdouble zoom = goo_canvas_get_scale(GOO_CANVAS(map->canvas)); |
999 | GtkAllocation *a = >K_WIDGET(map->canvas)->allocation; |
1000 | gdouble aw = a->width / zoom; |
1001 | gdouble ah = a->height / zoom; |
1002 | |
1003 | // Is the point still onscreen? |
1004 | gboolean vert_recentre_needed = FALSE; |
1005 | gboolean horiz_recentre_needed = FALSE; |
1006 | gint sx, sy; |
1007 | canvas_get_scroll_offsets(map->canvas, &sx, &sy); |
1008 | gint viewport_left = (sx/zoom); |
1009 | gint viewport_right = (sx/zoom)+aw; |
1010 | gint viewport_top = (sy/zoom); |
1011 | gint viewport_bottom = (sy/zoom)+ah; |
1012 | if (lpos->x > viewport_right) { |
1013 | printf("** off right edge (%d > %d)\n", lpos->x, viewport_right); |
1014 | horiz_recentre_needed = TRUE; |
1015 | } |
1016 | if (lpos->x < viewport_left) { |
1017 | printf("** off left edge (%d < %d)\n", lpos->x, viewport_left); |
1018 | horiz_recentre_needed = TRUE; |
1019 | } |
1020 | if (lpos->y > viewport_bottom) { |
1021 | printf("** off bottom edge (%d > %d)\n", lpos->y, viewport_bottom); |
1022 | vert_recentre_needed = TRUE; |
1023 | } |
1024 | if (lpos->y < viewport_top) { |
1025 | printf("** off top edge (%d < %d)\n", lpos->y, viewport_top); |
1026 | vert_recentre_needed = TRUE; |
1027 | } |
1028 | |
1029 | if (horiz_recentre_needed || vert_recentre_needed) { |
1030 | gint new_sx, new_sy; |
1031 | #if 0 |
1032 | // Only recentre the drifting axis. |
1033 | new_sx = horiz_recentre_needed ? zoom*(lpos->x - (aw/2)) : sx; |
1034 | new_sy = vert_recentre_needed ? zoom*(lpos->y - (ah/2)) : sy; |
1035 | // Not sure about this. I don't think it really buys us anything. |
1036 | #else |
1037 | // Just centre both at once |
1038 | new_sx = zoom * (lpos->x - (aw/2)); |
1039 | new_sy = zoom * (lpos->y - (ah/2)); |
1040 | #endif |
1041 | map_limit_scroll(map, &new_sx, &new_sy); |
1042 | canvas_scroll_to(map->canvas, new_sx, new_sy); |
1043 | } |
1044 | } |
1045 | |
1046 | #endif // #ifdef USE_GOOCANVAS |
1047 | |
1048 | /* Deselects the current way or node if its zoom_max |
1049 | * means that it's not going to render at the current map zoom. */ |
1050 | void map_deselect_if_zoom_below_zoom_max(map_t *map) { |
1051 | if (map->selected.type == MAP_TYPE_WAY) { |
1052 | printf("will deselect way if zoomed below %f\n", |
1053 | map->selected.way->draw.zoom_max); |
1054 | if (map->state->zoom < map->selected.way->draw.zoom_max) { |
1055 | printf(" deselecting way!\n"); |
1056 | map_item_deselect(map->appdata); |
1057 | } |
1058 | } |
1059 | else if (map->selected.type == MAP_TYPE_NODE) { |
1060 | printf("will deselect node if zoomed below %f\n", |
1061 | map->selected.node->zoom_max); |
1062 | if (map->state->zoom < map->selected.node->zoom_max) { |
1063 | printf(" deselecting node!\n"); |
1064 | map_item_deselect(map->appdata); |
1065 | } |
1066 | } |
1067 | } |
1068 | |
1069 | void map_set_zoom(map_t *map, double zoom, |
1070 | gboolean update_scroll_offsets) { |
1071 | gboolean at_zoom_limit = 0; |
1072 | #ifdef USE_GOOCANVAS |
1073 | at_zoom_limit = map_limit_zoom(map, &zoom); |
1074 | #endif |
1075 | map->state->zoom = zoom; |
1076 | canvas_set_zoom(map->canvas, map->state->zoom); |
1077 | |
1078 | map_deselect_if_zoom_below_zoom_max(map); |
1079 | |
1080 | if (update_scroll_offsets) { |
1081 | if (!at_zoom_limit) { |
1082 | /* zooming affects the scroll offsets */ |
1083 | gint sx, sy; |
1084 | canvas_get_scroll_offsets(map->canvas, &sx, &sy); |
1085 | #ifdef USE_GOOCANVAS |
1086 | map_limit_scroll(map, &sx, &sy); |
1087 | canvas_scroll_to(map->canvas, sx, sy); // keep the map visible |
1088 | #endif |
1089 | map->state->scroll_offset.x = sx; |
1090 | map->state->scroll_offset.y = sy; |
1091 | } |
1092 | #ifdef USE_GOOCANVAS |
1093 | else { |
1094 | // map_scroll_towards_centre(map, 0.20); |
1095 | } |
1096 | #endif |
1097 | } |
1098 | } |
1099 | |
1100 | static gboolean map_scroll_event(GtkWidget *widget, GdkEventScroll *event, |
1101 | gpointer data) { |
1102 | appdata_t *appdata = (appdata_t*)data; |
1103 | |
1104 | if(!appdata->osm) return FALSE; |
1105 | |
1106 | if(event->type == GDK_SCROLL && appdata->map && appdata->map->state) { |
1107 | if(event->direction) |
1108 | map_set_zoom(appdata->map, |
1109 | appdata->map->state->zoom / ZOOM_FACTOR_WHEEL, TRUE); |
1110 | else |
1111 | map_set_zoom(appdata->map, |
1112 | appdata->map->state->zoom * ZOOM_FACTOR_WHEEL, TRUE); |
1113 | } |
1114 | |
1115 | return TRUE; |
1116 | } |
1117 | |
1118 | static gboolean distance_above(map_t *map, gint x, gint y, gint limit) { |
1119 | gint sx, sy; |
1120 | |
1121 | #ifdef USE_GNOMECANVAS |
1122 | gnome_canvas_get_scroll_offsets(GNOME_CANVAS(map->canvas), &sx, &sy); |
1123 | |
1124 | /* add offsets generated by mouse within map and map scrolling */ |
1125 | sx = (x-map->pen_down.at.x) + (map->pen_down.so.x-sx); |
1126 | sy = (y-map->pen_down.at.y) + (map->pen_down.so.y-sy); |
1127 | #else |
1128 | /* add offsets generated by mouse within map and map scrolling */ |
1129 | sx = (x-map->pen_down.at.x); |
1130 | sy = (y-map->pen_down.at.y); |
1131 | #endif |
1132 | |
1133 | return(sx*sx + sy*sy > limit*limit); |
1134 | } |
1135 | |
1136 | /* scroll with respect to two screen positions */ |
1137 | static void map_do_scroll(map_t *map, gint x, gint y) { |
1138 | gint sx, sy; |
1139 | |
1140 | canvas_get_scroll_offsets(map->canvas, &sx, &sy); |
1141 | sx -= x-map->pen_down.at.x; |
1142 | sy -= y-map->pen_down.at.y; |
1143 | #ifdef USE_GOOCANVAS |
1144 | map_limit_scroll(map, &sx, &sy); |
1145 | #endif |
1146 | canvas_scroll_to(map->canvas, sx, sy); |
1147 | map->state->scroll_offset.x = sx; |
1148 | map->state->scroll_offset.y = sy; |
1149 | } |
1150 | |
1151 | |
1152 | /* scroll a certain step */ |
1153 | static void map_do_scroll_step(map_t *map, gint x, gint y) { |
1154 | gint sx, sy; |
1155 | canvas_get_scroll_offsets(map->canvas, &sx, &sy); |
1156 | sx += x; |
1157 | sy += y; |
1158 | #ifdef USE_GOOCANVAS |
1159 | map_limit_scroll(map, &sx, &sy); |
1160 | #endif |
1161 | canvas_scroll_to(map->canvas, sx, sy); |
1162 | map->state->scroll_offset.x = sx; |
1163 | map->state->scroll_offset.y = sy; |
1164 | } |
1165 | |
1166 | |
1167 | gboolean map_item_is_selected_node(map_t *map, map_item_t *map_item) { |
1168 | printf("check if item is a selected node\n"); |
1169 | |
1170 | if(!map_item) { |
1171 | printf(" no item requested\n"); |
1172 | return FALSE; |
1173 | } |
1174 | |
1175 | if(map->selected.type == MAP_TYPE_ILLEGAL) { |
1176 | printf(" nothing is selected\n"); |
1177 | return FALSE; |
1178 | } |
1179 | |
1180 | /* clicked the highlight directly */ |
1181 | if(map_item->type != MAP_TYPE_NODE) { |
1182 | printf(" didn't click node\n"); |
1183 | return FALSE; |
1184 | } |
1185 | |
1186 | if(map->selected.type == MAP_TYPE_NODE) { |
1187 | printf(" selected item is a node\n"); |
1188 | |
1189 | if(map_item->node == map->selected.node) { |
1190 | printf(" requested item is a selected node\n"); |
1191 | return TRUE; |
1192 | } |
1193 | printf(" but it's not the requested one\n"); |
1194 | return FALSE; |
1195 | |
1196 | } else if(map->selected.type == MAP_TYPE_WAY) { |
1197 | printf(" selected item is a way\n"); |
1198 | |
1199 | node_chain_t *node_chain = map->selected.way->node_chain; |
1200 | while(node_chain) { |
1201 | if(node_chain->node == map_item->node) { |
1202 | printf(" requested item is part of selected way\n"); |
1203 | return TRUE; |
1204 | } |
1205 | node_chain = node_chain->next; |
1206 | } |
1207 | printf(" but it doesn't include the requested node\n"); |
1208 | return FALSE; |
1209 | |
1210 | } else { |
1211 | printf(" selected item is unknown\n"); |
1212 | return FALSE; |
1213 | } |
1214 | |
1215 | g_assert(0); |
1216 | return TRUE; |
1217 | } |
1218 | |
1219 | /* return true if the item given is the currenly selected way */ |
1220 | /* also return false if nothing is selected or the selection is no way */ |
1221 | gboolean map_item_is_selected_way(map_t *map, map_item_t *map_item) { |
1222 | printf("check if item is the selected way\n"); |
1223 | |
1224 | if(!map_item) { |
1225 | printf(" no item requested\n"); |
1226 | return FALSE; |
1227 | } |
1228 | |
1229 | if(map->selected.type == MAP_TYPE_ILLEGAL) { |
1230 | printf(" nothing is selected\n"); |
1231 | return FALSE; |
1232 | } |
1233 | |
1234 | /* clicked the highlight directly */ |
1235 | if(map_item->type != MAP_TYPE_WAY) { |
1236 | printf(" didn't click way\n"); |
1237 | return FALSE; |
1238 | } |
1239 | |
1240 | if(map->selected.type == MAP_TYPE_WAY) { |
1241 | printf(" selected item is a way\n"); |
1242 | |
1243 | if(map_item->way == map->selected.way) { |
1244 | printf(" requested item is a selected way\n"); |
1245 | return TRUE; |
1246 | } |
1247 | printf(" but it's not the requested one\n"); |
1248 | return FALSE; |
1249 | } |
1250 | |
1251 | printf(" selected item is not a way\n"); |
1252 | return FALSE; |
1253 | } |
1254 | |
1255 | |
1256 | void map_highlight_refresh(appdata_t *appdata) { |
1257 | map_t *map = appdata->map; |
1258 | map_item_t old = map->selected; |
1259 | |
1260 | printf("type to refresh is %d\n", old.type); |
1261 | if(old.type == MAP_TYPE_ILLEGAL) |
1262 | return; |
1263 | |
1264 | map_item_deselect(appdata); |
1265 | map_item_select(appdata, &old); |
1266 | } |
1267 | |
1268 | void map_way_delete(appdata_t *appdata, way_t *way) { |
1269 | printf("deleting way #%ld from map and osm\n", way->id); |
1270 | |
1271 | /* remove it visually from the screen */ |
1272 | map_item_chain_destroy(&way->map_item_chain); |
1273 | |
1274 | /* also remove the visible representation of all nodes (nodes with tags) */ |
1275 | node_chain_t *chain = way->node_chain; |
1276 | while(chain) { |
1277 | if(chain->node->map_item_chain) |
1278 | map_item_chain_destroy(&chain->node->map_item_chain); |
1279 | |
1280 | chain = chain->next; |
1281 | } |
1282 | |
1283 | /* and mark it "deleted" in the database */ |
1284 | osm_way_remove_from_relation(appdata->osm, way); |
1285 | osm_way_delete(appdata->osm, &appdata->icon, way, FALSE); |
1286 | } |
1287 | |
1288 | static void map_handle_click(appdata_t *appdata, map_t *map) { |
1289 | |
1290 | /* problem: on_item may be the highlight itself! So store it! */ |
1291 | map_item_t map_item; |
1292 | if(map->pen_down.on_item) map_item = *map->pen_down.on_item; |
1293 | else map_item.type = MAP_TYPE_ILLEGAL; |
1294 | |
1295 | /* if we aready have something selected, then de-select it */ |
1296 | map_item_deselect(appdata); |
1297 | |
1298 | /* select the clicked item (if there was one) */ |
1299 | if(map_item.type != MAP_TYPE_ILLEGAL) { |
1300 | switch(map_item.type) { |
1301 | case MAP_TYPE_NODE: |
1302 | map_node_select(appdata, map_item.node); |
1303 | break; |
1304 | |
1305 | case MAP_TYPE_WAY: |
1306 | map_way_select(appdata, map_item.way); |
1307 | break; |
1308 | |
1309 | default: |
1310 | g_assert((map_item.type == MAP_TYPE_NODE) || |
1311 | (map_item.type == MAP_TYPE_WAY)); |
1312 | break; |
1313 | } |
1314 | } |
1315 | } |
1316 | |
1317 | static void map_touchnode_update(appdata_t *appdata, gint x, gint y) { |
1318 | map_t *map = appdata->map; |
1319 | |
1320 | map_hl_touchnode_clear(map); |
1321 | |
1322 | node_t *cur_node = NULL; |
1323 | |
1324 | /* the "current node" which is the one we are working on and which */ |
1325 | /* should not be highlighted depends on the action */ |
1326 | switch(map->action.type) { |
1327 | |
1328 | /* in idle mode the dragged node is not highlighted */ |
1329 | case MAP_ACTION_IDLE: |
1330 | g_assert(map->pen_down.on_item); |
1331 | g_assert(map->pen_down.on_item->type == MAP_TYPE_NODE); |
1332 | cur_node = map->pen_down.on_item->node; |
1333 | break; |
1334 | |
1335 | default: |
1336 | break; |
1337 | } |
1338 | |
1339 | |
1340 | /* check if we are close to one of the other nodes */ |
1341 | canvas_window2world(appdata->map->canvas, x, y, &x, &y); |
1342 | node_t *node = appdata->osm->node; |
1343 | while(!map->touchnode && node) { |
1344 | /* don't highlight the dragged node itself and don't highlight */ |
1345 | /* deleted ones */ |
1346 | if((node != cur_node) && (!(node->flags & OSM_FLAG_DELETED))) { |
1347 | gint nx = x - node->lpos.x; |
1348 | gint ny = y - node->lpos.y; |
1349 | |
1350 | if((nx < map->style->node.radius) && (ny < map->style->node.radius) && |
1351 | (nx*nx + ny*ny < map->style->node.radius * map->style->node.radius)) |
1352 | map_hl_touchnode_draw(map, node); |
1353 | } |
1354 | node = node->next; |
1355 | } |
1356 | |
1357 | /* during way creation also nodes of the new way */ |
1358 | /* need to be searched */ |
1359 | if(!map->touchnode && map->action.way) { |
1360 | node_chain_t *chain = map->action.way->node_chain; |
1361 | while(!map->touchnode && chain && chain->next) { |
1362 | gint nx = x - chain->node->lpos.x; |
1363 | gint ny = y - chain->node->lpos.y; |
1364 | |
1365 | if((nx < map->style->node.radius) && (ny < map->style->node.radius) && |
1366 | (nx*nx + ny*ny < map->style->node.radius * map->style->node.radius)) |
1367 | map_hl_touchnode_draw(map, chain->node); |
1368 | |
1369 | chain = chain->next; |
1370 | } |
1371 | } |
1372 | } |
1373 | |
1374 | static void map_button_press(map_t *map, gint x, gint y) { |
1375 | |
1376 | printf("left button pressed\n"); |
1377 | map->pen_down.is = TRUE; |
1378 | |
1379 | /* save press position */ |
1380 | map->pen_down.at.x = x; |
1381 | map->pen_down.at.y = y; |
1382 | map->pen_down.drag = FALSE; // don't assume drag yet |
1383 | |
1384 | #ifdef USE_GNOMECANVAS |
1385 | /* save initial scroll offset */ |
1386 | gnome_canvas_get_scroll_offsets(GNOME_CANVAS(map->canvas), |
1387 | &map->pen_down.so.x, &map->pen_down.so.y); |
1388 | #endif |
1389 | |
1390 | /* determine wether this press was on an item */ |
1391 | map->pen_down.on_item = map_real_item_at(map, x, y); |
1392 | |
1393 | /* check if the clicked item is a highlighted node as the user */ |
1394 | /* might want to drag that */ |
1395 | map->pen_down.on_selected_node = FALSE; |
1396 | if(map->pen_down.on_item) |
1397 | map->pen_down.on_selected_node = |
1398 | map_item_is_selected_node(map, map->pen_down.on_item); |
1399 | |
1400 | /* button press */ |
1401 | switch(map->action.type) { |
1402 | |
1403 | case MAP_ACTION_WAY_NODE_ADD: |
1404 | map_edit_way_node_add_highlight(map, map->pen_down.on_item, x, y); |
1405 | break; |
1406 | |
1407 | case MAP_ACTION_WAY_CUT: |
1408 | map_edit_way_cut_highlight(map, map->pen_down.on_item, x, y); |
1409 | break; |
1410 | |
1411 | case MAP_ACTION_NODE_ADD: |
1412 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); |
1413 | break; |
1414 | |
1415 | case MAP_ACTION_WAY_ADD: |
1416 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); |
1417 | map_touchnode_update(map->appdata, x, y); |
1418 | break; |
1419 | |
1420 | default: |
1421 | break; |
1422 | } |
1423 | } |
1424 | |
1425 | /* move the background image (wms data) during wms adjustment */ |
1426 | static void map_bg_adjust(map_t *map, gint x, gint y) { |
1427 | g_assert(map->appdata); |
1428 | g_assert(map->appdata->osm); |
1429 | g_assert(map->appdata->osm->bounds); |
1430 | |
1431 | x += map->appdata->osm->bounds->min.x + map->bg.offset.x - |
1432 | map->pen_down.at.x; |
1433 | y += map->appdata->osm->bounds->min.y + map->bg.offset.y - |
1434 | map->pen_down.at.y; |
1435 | |
1436 | canvas_image_move(map->bg.item, x, y, map->bg.scale.x, map->bg.scale.y); |
1437 | } |
1438 | |
1439 | static void map_button_release(map_t *map, gint x, gint y) { |
1440 | map->pen_down.is = FALSE; |
1441 | |
1442 | /* before button release is handled */ |
1443 | switch(map->action.type) { |
1444 | case MAP_ACTION_BG_ADJUST: |
1445 | map_bg_adjust(map, x, y); |
1446 | map->bg.offset.x += x - map->pen_down.at.x; |
1447 | map->bg.offset.y += y - map->pen_down.at.y; |
1448 | break; |
1449 | |
1450 | case MAP_ACTION_IDLE: |
1451 | /* check if distance to press is above drag limit */ |
1452 | if(!map->pen_down.drag) |
1453 | map->pen_down.drag = distance_above(map, x, y, MAP_DRAG_LIMIT); |
1454 | |
1455 | if(!map->pen_down.drag) { |
1456 | printf("left button released after click\n"); |
1457 | |
1458 | map_item_t old_sel = map->selected; |
1459 | map_handle_click(map->appdata, map); |
1460 | |
1461 | if((old_sel.type != MAP_TYPE_ILLEGAL) && |
1462 | (old_sel.type == map->selected.type) && |
1463 | (old_sel.ptr == map->selected.ptr)) { |
1464 | printf("re-selected same item of type %d, " |
1465 | "pushing it to the bottom\n", old_sel.type); |
1466 | |
1467 | if(!map->selected.item) { |
1468 | printf(" item has no visible representation to push\n"); |
1469 | } else { |
1470 | canvas_item_to_bottom(map->selected.item); |
1471 | |
1472 | /* update clicked item, to correctly handle the click */ |
1473 | map->pen_down.on_item = |
1474 | map_real_item_at(map, map->pen_down.at.x, map->pen_down.at.y); |
1475 | |
1476 | map_handle_click(map->appdata, map); |
1477 | } |
1478 | } |
1479 | } else { |
1480 | printf("left button released after drag\n"); |
1481 | |
1482 | /* just scroll if we didn't drag an selected item */ |
1483 | if(!map->pen_down.on_selected_node) |
1484 | map_do_scroll(map, x, y); |
1485 | else { |
1486 | printf("released after dragging node\n"); |
1487 | map_hl_cursor_clear(map); |
1488 | |
1489 | /* now actually move the node */ |
1490 | map_edit_node_move(map->appdata, map->pen_down.on_item, x, y); |
1491 | } |
1492 | } |
1493 | break; |
1494 | |
1495 | case MAP_ACTION_NODE_ADD: |
1496 | printf("released after NODE ADD\n"); |
1497 | map_hl_cursor_clear(map); |
1498 | |
1499 | /* convert mouse position to canvas (world) position */ |
1500 | canvas_window2world(map->canvas, x, y, &x, &y); |
1501 | |
1502 | node_t *node = NULL; |
1503 | if(!osm_position_within_bounds(map->appdata->osm, x, y)) |
1504 | map_outside_error(map->appdata); |
1505 | else { |
1506 | node = osm_node_new(map->appdata->osm, x, y); |
1507 | osm_node_attach(map->appdata->osm, node); |
1508 | map_node_draw(map, node); |
1509 | } |
1510 | map_action_set(map->appdata, MAP_ACTION_IDLE); |
1511 | |
1512 | map_item_deselect(map->appdata); |
1513 | |
1514 | if(node) { |
1515 | map_node_select(map->appdata, node); |
1516 | |
1517 | /* let the user specify some tags for the new node */ |
1518 | info_dialog(GTK_WIDGET(map->appdata->window), map->appdata, NULL); |
1519 | } |
1520 | break; |
1521 | |
1522 | case MAP_ACTION_WAY_ADD: |
1523 | printf("released after WAY ADD\n"); |
1524 | map_hl_cursor_clear(map); |
1525 | |
1526 | map_edit_way_add_segment(map, x, y); |
1527 | break; |
1528 | |
1529 | case MAP_ACTION_WAY_NODE_ADD: |
1530 | printf("released after WAY NODE ADD\n"); |
1531 | map_hl_cursor_clear(map); |
1532 | |
1533 | map_edit_way_node_add(map, x, y); |
1534 | break; |
1535 | |
1536 | case MAP_ACTION_WAY_CUT: |
1537 | printf("released after WAY CUT\n"); |
1538 | map_hl_cursor_clear(map); |
1539 | |
1540 | map_edit_way_cut(map, x, y); |
1541 | break; |
1542 | |
1543 | |
1544 | default: |
1545 | break; |
1546 | } |
1547 | } |
1548 | |
1549 | static gboolean map_button_event(GtkWidget *widget, GdkEventButton *event, |
1550 | gpointer data) { |
1551 | appdata_t *appdata = (appdata_t*)data; |
1552 | map_t *map = appdata->map; |
1553 | |
1554 | if(!appdata->osm) return FALSE; |
1555 | |
1556 | if(event->button == 1) { |
1557 | gint x = event->x, y = event->y; |
1558 | |
1559 | if(event->type == GDK_BUTTON_PRESS) |
1560 | map_button_press(map, x, y); |
1561 | |
1562 | if(event->type == GDK_BUTTON_RELEASE) |
1563 | map_button_release(map, x, y); |
1564 | } |
1565 | |
1566 | return FALSE; /* forward to further processing */ |
1567 | } |
1568 | |
1569 | static gboolean map_motion_notify_event(GtkWidget *widget, |
1570 | GdkEventMotion *event, gpointer data) { |
1571 | appdata_t *appdata = (appdata_t*)data; |
1572 | map_t *map = appdata->map; |
1573 | gint x, y; |
1574 | GdkModifierType state; |
1575 | |
1576 | if(!appdata->osm) return FALSE; |
1577 | |
1578 | #ifdef USE_HILDON |
1579 | /* reduce update frequency on hildon to keep screen update fluid */ |
1580 | static guint32 last_time = 0; |
1581 | |
1582 | if(event->time - last_time < 100) return FALSE; |
1583 | last_time = event->time; |
1584 | #endif |
1585 | |
1586 | if(!map->pen_down.is) |
1587 | return FALSE; |
1588 | |
1589 | #ifdef USE_GNOMECANVAS |
1590 | /* handle hints, hints are handled by goocanvas directly */ |
1591 | if(event->is_hint) |
1592 | gdk_window_get_pointer(event->window, &x, &y, &state); |
1593 | else |
1594 | #endif |
1595 | { |
1596 | x = event->x; |
1597 | y = event->y; |
1598 | state = event->state; |
1599 | } |
1600 | |
1601 | /* check if distance to press is above drag limit */ |
1602 | if(!map->pen_down.drag) |
1603 | map->pen_down.drag = distance_above(map, x, y, MAP_DRAG_LIMIT); |
1604 | |
1605 | /* drag */ |
1606 | switch(map->action.type) { |
1607 | case MAP_ACTION_BG_ADJUST: |
1608 | map_bg_adjust(map, x, y); |
1609 | break; |
1610 | |
1611 | case MAP_ACTION_IDLE: |
1612 | if(map->pen_down.drag) { |
1613 | /* just scroll if we didn't drag an selected item */ |
1614 | if(!map->pen_down.on_selected_node) |
1615 | map_do_scroll(map, x, y); |
1616 | else { |
1617 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); |
1618 | map_touchnode_update(appdata, x, y); |
1619 | } |
1620 | } |
1621 | break; |
1622 | |
1623 | case MAP_ACTION_NODE_ADD: |
1624 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); |
1625 | break; |
1626 | |
1627 | case MAP_ACTION_WAY_ADD: |
1628 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); |
1629 | map_touchnode_update(appdata, x, y); |
1630 | break; |
1631 | |
1632 | case MAP_ACTION_WAY_NODE_ADD: |
1633 | map_hl_cursor_clear(map); |
1634 | map_item_t *item = map_item_at(map, x, y); |
1635 | if(item) map_edit_way_node_add_highlight(map, item, x, y); |
1636 | break; |
1637 | |
1638 | case MAP_ACTION_WAY_CUT: |
1639 | map_hl_cursor_clear(map); |
1640 | item = map_item_at(map, x, y); |
1641 | if(item) map_edit_way_cut_highlight(map, item, x, y); |
1642 | break; |
1643 | |
1644 | default: |
1645 | break; |
1646 | } |
1647 | |
1648 | |
1649 | return FALSE; /* forward to further processing */ |
1650 | } |
1651 | |
1652 | gboolean map_key_press_event(appdata_t *appdata, GdkEventKey *event) { |
1653 | |
1654 | if(!appdata->osm) return FALSE; |
1655 | |
1656 | /* map needs to be there to handle buttons */ |
1657 | if(!appdata->map->canvas) |
1658 | return FALSE; |
1659 | |
1660 | if(event->type == GDK_KEY_PRESS) { |
1661 | gdouble zoom = 0; |
1662 | switch(event->keyval) { |
1663 | |
1664 | case GDK_Left: |
1665 | map_do_scroll_step(appdata->map, -50, 0); |
1666 | break; |
1667 | |
1668 | case GDK_Right: |
1669 | map_do_scroll_step(appdata->map, +50, 0); |
1670 | break; |
1671 | |
1672 | case GDK_Up: |
1673 | map_do_scroll_step(appdata->map, 0, -50); |
1674 | break; |
1675 | |
1676 | case GDK_Down: |
1677 | map_do_scroll_step(appdata->map, 0, +50); |
1678 | break; |
1679 | |
1680 | case GDK_Return: // same as HILDON_HARDKEY_SELECT |
1681 | /* if the ok button is enabled, call its function */ |
1682 | if(GTK_WIDGET_FLAGS(appdata->iconbar->ok) & GTK_SENSITIVE) |
1683 | map_action_ok(appdata); |
1684 | /* otherwise if info is enabled call that */ |
1685 | else if(GTK_WIDGET_FLAGS(appdata->iconbar->info) & GTK_SENSITIVE) |
1686 | info_dialog(GTK_WIDGET(appdata->window), appdata, NULL); |
1687 | break; |
1688 | |
1689 | case GDK_Escape: // same as HILDON_HARDKEY_ESC |
1690 | /* if the cancel button is enabled, call its function */ |
1691 | if(GTK_WIDGET_FLAGS(appdata->iconbar->cancel) & GTK_SENSITIVE) |
1692 | map_action_cancel(appdata); |
1693 | break; |
1694 | |
1695 | #ifdef USE_HILDON |
1696 | case HILDON_HARDKEY_INCREASE: |
1697 | #else |
1698 | case '+': |
1699 | #endif |
1700 | zoom = appdata->map->state->zoom; |
1701 | zoom *= ZOOM_FACTOR_BUTTON; |
1702 | map_set_zoom(appdata->map, zoom, TRUE); |
1703 | printf("zoom is now %f (1:%d)\n", zoom, (int)zoom_to_scaledn(zoom)); |
1704 | return TRUE; |
1705 | break; |
1706 | |
1707 | #ifdef USE_HILDON |
1708 | case HILDON_HARDKEY_DECREASE: |
1709 | #else |
1710 | case '-': |
1711 | #endif |
1712 | zoom = appdata->map->state->zoom; |
1713 | zoom /= ZOOM_FACTOR_BUTTON; |
1714 | map_set_zoom(appdata->map, zoom, TRUE); |
1715 | printf("zoom is now %f (1:%d)\n", zoom, (int)zoom_to_scaledn(zoom)); |
1716 | return TRUE; |
1717 | break; |
1718 | |
1719 | default: |
1720 | printf("key event %d\n", event->keyval); |
1721 | break; |
1722 | } |
1723 | } |
1724 | return FALSE; |
1725 | } |
1726 | |
1727 | GtkWidget *map_new(appdata_t *appdata) { |
1728 | map_t *map = appdata->map = g_new0(map_t, 1); |
1729 | |
1730 | map->style = style_load(appdata, appdata->settings->style); |
1731 | |
1732 | if(appdata->project && appdata->project->map_state) { |
1733 | printf("Using projects map state\n"); |
1734 | map->state = appdata->project->map_state; |
1735 | } else { |
1736 | printf("Creating new map state\n"); |
1737 | map->state = g_new0(map_state_t, 1); |
1738 | map->state->zoom = 0.25; |
1739 | } |
1740 | |
1741 | map->state->refcount++; |
1742 | |
1743 | map->pen_down.at.x = -1; |
1744 | map->pen_down.at.y = -1; |
1745 | map->appdata = appdata; |
1746 | map->action.type = MAP_ACTION_IDLE; |
1747 | |
1748 | #ifdef USE_GNOMECANVAS |
1749 | map->canvas = gnome_canvas_new_aa(); // _aa |
1750 | |
1751 | /* create the groups */ |
1752 | canvas_group_t group; |
1753 | for(group = 0; group < CANVAS_GROUPS; group++) |
1754 | map->group[group] = gnome_canvas_item_new( |
1755 | gnome_canvas_root(GNOME_CANVAS(map->canvas)), |
1756 | GNOME_TYPE_CANVAS_GROUP, |
1757 | NULL); |
1758 | |
1759 | gtk_widget_modify_bg(map->canvas, GTK_STATE_NORMAL, |
1760 | &map->canvas->style->white); |
1761 | |
1762 | #else |
1763 | map->canvas = goo_canvas_new(); |
1764 | |
1765 | g_object_set(G_OBJECT(map->canvas), "anchor", GTK_ANCHOR_CENTER, NULL); |
1766 | g_object_set(G_OBJECT(map->canvas), "background-color-rgb", |
1767 | map->style->background.color, NULL); |
1768 | |
1769 | GooCanvasItem *root = goo_canvas_get_root_item(GOO_CANVAS(map->canvas)); |
1770 | |
1771 | /* create the groups */ |
1772 | canvas_group_t group; |
1773 | for(group = 0; group < CANVAS_GROUPS; group++) |
1774 | map->group[group] = goo_canvas_group_new(root, NULL); |
1775 | |
1776 | #endif |
1777 | |
1778 | gtk_widget_set_events(map->canvas, |
1779 | GDK_BUTTON_PRESS_MASK |
1780 | | GDK_BUTTON_RELEASE_MASK |
1781 | | GDK_SCROLL_MASK |
1782 | | GDK_POINTER_MOTION_MASK |
1783 | | GDK_POINTER_MOTION_HINT_MASK); |
1784 | |
1785 | gtk_signal_connect(GTK_OBJECT(map->canvas), |
1786 | "button_press_event", G_CALLBACK(map_button_event), appdata); |
1787 | gtk_signal_connect(GTK_OBJECT(map->canvas), |
1788 | "button_release_event", G_CALLBACK(map_button_event), appdata); |
1789 | gtk_signal_connect(GTK_OBJECT(map->canvas), |
1790 | "motion_notify_event", G_CALLBACK(map_motion_notify_event), appdata); |
1791 | gtk_signal_connect(GTK_OBJECT(map->canvas), |
1792 | "scroll_event", G_CALLBACK(map_scroll_event), appdata); |
1793 | |
1794 | gtk_signal_connect(GTK_OBJECT(map->canvas), |
1795 | "destroy", G_CALLBACK(map_destroy_event), appdata); |
1796 | |
1797 | return map->canvas; |
1798 | } |
1799 | |
1800 | void map_init(appdata_t *appdata) { |
1801 | map_t *map = appdata->map; |
1802 | |
1803 | /* set initial zoom */ |
1804 | map_set_zoom(map, map->state->zoom, FALSE); |
1805 | josm_elemstyles_colorize_world(map->style, appdata->osm); |
1806 | |
1807 | map_draw(map, appdata->osm); |
1808 | |
1809 | float mult = appdata->map->style->frisket.mult; |
1810 | canvas_set_bounds(map->canvas, |
1811 | mult*appdata->osm->bounds->min.x, |
1812 | mult*appdata->osm->bounds->min.y, |
1813 | mult*appdata->osm->bounds->max.x, |
1814 | mult*appdata->osm->bounds->max.y); |
1815 | |
1816 | printf("restore scroll offsets %d/%d\n", |
1817 | map->state->scroll_offset.x, map->state->scroll_offset.y); |
1818 | |
1819 | canvas_scroll_to(map->canvas, |
1820 | map->state->scroll_offset.x, map->state->scroll_offset.y); |
1821 | } |
1822 | |
1823 | |
1824 | void map_item_set_flags(map_item_t *map_item, int set, int clr) { |
1825 | |
1826 | switch(map_item->type) { |
1827 | case MAP_TYPE_NODE: |
1828 | map_item->node->flags |= set; |
1829 | map_item->node->flags &= ~clr; |
1830 | break; |
1831 | |
1832 | case MAP_TYPE_WAY: |
1833 | map_item->way->flags |= set; |
1834 | map_item->way->flags &= ~clr; |
1835 | break; |
1836 | |
1837 | default: |
1838 | g_assert(0); |
1839 | break; |
1840 | } |
1841 | } |
1842 | |
1843 | void map_clear(appdata_t *appdata, gint layer_mask) { |
1844 | map_t *map = appdata->map; |
1845 | |
1846 | printf("freeing map contents\n"); |
1847 | |
1848 | map_free_map_item_chains(appdata); |
1849 | |
1850 | /* remove a possibly existing highlight */ |
1851 | map_item_deselect(appdata); |
1852 | |
1853 | canvas_group_t group; |
1854 | for(group=0;group<CANVAS_GROUPS;group++) { |
1855 | |
1856 | #ifdef USE_GNOMECANVAS |
1857 | /* destroy the entire group */ |
1858 | canvas_item_destroy(map->group[group]); |
1859 | |
1860 | /* and create an empty new one */ |
1861 | map->group[group] = gnome_canvas_item_new( |
1862 | gnome_canvas_root(GNOME_CANVAS(map->canvas)), |
1863 | GNOME_TYPE_CANVAS_GROUP, |
1864 | NULL); |
1865 | #else |
1866 | if(layer_mask & (1<<group)) { |
1867 | gint children = goo_canvas_item_get_n_children(map->group[group]); |
1868 | printf("Removing %d children from layer %d\n", children, group); |
1869 | while(children--) |
1870 | goo_canvas_item_remove_child(map->group[group], children); |
1871 | } |
1872 | #endif |
1873 | } |
1874 | } |
1875 | |
1876 | void map_paint(appdata_t *appdata) { |
1877 | map_t *map = appdata->map; |
1878 | |
1879 | josm_elemstyles_colorize_world(map->style, appdata->osm); |
1880 | map_draw(map, appdata->osm); |
1881 | } |
1882 | |
1883 | /* called from several icons like e.g. "node_add" */ |
1884 | void map_action_set(appdata_t *appdata, map_action_t action) { |
1885 | printf("map action set to %d\n", action); |
1886 | |
1887 | appdata->map->action.type = action; |
1888 | |
1889 | /* enable/disable ok/cancel buttons */ |
1890 | // MAP_ACTION_IDLE=0, NODE_ADD, BG_ADJUST, WAY_ADD, WAY_NODE_ADD, WAY_CUT |
1891 | const gboolean ok_state[] = { FALSE, FALSE, TRUE, FALSE, FALSE, FALSE }; |
1892 | const gboolean cancel_state[] = { FALSE, TRUE, TRUE, TRUE, TRUE, TRUE }; |
1893 | |
1894 | g_assert(MAP_ACTION_NUM == sizeof(ok_state)/sizeof(gboolean)); |
1895 | g_assert(action < sizeof(ok_state)/sizeof(gboolean)); |
1896 | |
1897 | icon_bar_map_cancel_ok(appdata, cancel_state[action], ok_state[action]); |
1898 | |
1899 | switch(action) { |
1900 | case MAP_ACTION_BG_ADJUST: |
1901 | /* an existing selection only causes confusion ... */ |
1902 | map_item_deselect(appdata); |
1903 | break; |
1904 | |
1905 | case MAP_ACTION_WAY_ADD: |
1906 | printf("starting new way\n"); |
1907 | |
1908 | /* remember if there was a way selected */ |
1909 | way_t *way_sel = NULL; |
1910 | if(appdata->map->selected.type == MAP_TYPE_WAY) |
1911 | way_sel = appdata->map->selected.way; |
1912 | |
1913 | map_item_deselect(appdata); |
1914 | map_edit_way_add_begin(appdata->map, way_sel); |
1915 | break; |
1916 | |
1917 | case MAP_ACTION_NODE_ADD: |
1918 | map_item_deselect(appdata); |
1919 | break; |
1920 | |
1921 | default: |
1922 | break; |
1923 | } |
1924 | |
1925 | icon_bar_map_action_idle(appdata, action == MAP_ACTION_IDLE); |
1926 | gtk_widget_set_sensitive(appdata->menu_item_wms_adjust, |
1927 | action == MAP_ACTION_IDLE); |
1928 | |
1929 | const char *str_state[] = { |
1930 | NULL, |
1931 | _("Place a node"), |
1932 | _("Adjust background image position"), |
1933 | _("Place first node of new way"), |
1934 | _("Place node on selected way"), |
1935 | _("Select segment to cut way"), |
1936 | }; |
1937 | |
1938 | g_assert(MAP_ACTION_NUM == sizeof(str_state)/sizeof(char*)); |
1939 | |
1940 | statusbar_set(appdata, str_state[action], FALSE); |
1941 | } |
1942 | |
1943 | |
1944 | void map_action_cancel(appdata_t *appdata) { |
1945 | map_t *map = appdata->map; |
1946 | |
1947 | switch(map->action.type) { |
1948 | case MAP_ACTION_WAY_ADD: |
1949 | map_edit_way_add_cancel(map); |
1950 | break; |
1951 | |
1952 | case MAP_ACTION_BG_ADJUST: |
1953 | /* undo all changes to bg_offset */ |
1954 | map->bg.offset.x = appdata->project->wms_offset.x; |
1955 | map->bg.offset.y = appdata->project->wms_offset.y; |
1956 | |
1957 | gint x = appdata->osm->bounds->min.x + map->bg.offset.x; |
1958 | gint y = appdata->osm->bounds->min.y + map->bg.offset.y; |
1959 | canvas_image_move(map->bg.item, x, y, map->bg.scale.x, map->bg.scale.y); |
1960 | break; |
1961 | |
1962 | default: |
1963 | break; |
1964 | } |
1965 | |
1966 | map_action_set(appdata, MAP_ACTION_IDLE); |
1967 | } |
1968 | |
1969 | void map_action_ok(appdata_t *appdata) { |
1970 | map_t *map = appdata->map; |
1971 | |
1972 | /* reset action now as this erases the statusbar and some */ |
1973 | /* of the actions may set it */ |
1974 | map_action_t type = map->action.type; |
1975 | map_action_set(appdata, MAP_ACTION_IDLE); |
1976 | |
1977 | switch(type) { |
1978 | case MAP_ACTION_WAY_ADD: |
1979 | map_edit_way_add_ok(map); |
1980 | break; |
1981 | |
1982 | case MAP_ACTION_BG_ADJUST: |
1983 | /* save changes to bg_offset in project */ |
1984 | appdata->project->wms_offset.x = map->bg.offset.x; |
1985 | appdata->project->wms_offset.y = map->bg.offset.y; |
1986 | appdata->project->dirty = TRUE; |
1987 | break; |
1988 | |
1989 | default: |
1990 | break; |
1991 | } |
1992 | } |
1993 | |
1994 | /* called from icon "trash" */ |
1995 | void map_delete_selected(appdata_t *appdata) { |
1996 | map_t *map = appdata->map; |
1997 | |
1998 | if(!yes_no_f(GTK_WIDGET(appdata->window), |
1999 | appdata, MISC_AGAIN_ID_DELETE, MISC_AGAIN_FLAG_DONT_SAVE_NO, |
2000 | _("Delete selected object?"), |
2001 | _("Do you really want to delete the selected object?"))) |
2002 | return; |
2003 | |
2004 | /* work on local copy since de-selecting destroys the selection */ |
2005 | map_item_t item = map->selected; |
2006 | |
2007 | /* deleting the selected item de-selects it ... */ |
2008 | map_item_deselect(appdata); |
2009 | |
2010 | switch(item.type) { |
2011 | case MAP_TYPE_NODE: |
2012 | printf("request to delete node #%ld\n", item.node->id); |
2013 | |
2014 | /* check if this node is part of a way with two nodes only. */ |
2015 | /* we cannot delete this as this would also delete the way */ |
2016 | way_chain_t *way_chain = osm_node_to_way(appdata->osm, item.node); |
2017 | if(way_chain) { |
2018 | gboolean short_way = FALSE; |
2019 | |
2020 | /* free the chain of ways */ |
2021 | while(way_chain && !short_way) { |
2022 | way_chain_t *next = way_chain->next; |
2023 | |
2024 | if(osm_way_number_of_nodes(way_chain->way) <= 2) |
2025 | short_way = TRUE; |
2026 | |
2027 | g_free(way_chain); |
2028 | way_chain = next; |
2029 | } |
2030 | |
2031 | if(short_way) { |
2032 | if(!yes_no_f(GTK_WIDGET(appdata->window), NULL, 0, 0, |
2033 | _("Delete node in short way(s)?"), |
2034 | _("Deleting this node will also delete one or more ways " |
2035 | "since they'll contain only one node afterwards. " |
2036 | "Do you really want this?"))) |
2037 | return; |
2038 | } |
2039 | } |
2040 | |
2041 | /* remove it visually from the screen */ |
2042 | map_item_chain_destroy(&item.node->map_item_chain); |
2043 | |
2044 | /* and mark it "deleted" in the database */ |
2045 | osm_node_remove_from_relation(appdata->osm, item.node); |
2046 | way_chain_t *chain = osm_node_delete(appdata->osm, |
2047 | &appdata->icon, item.node, FALSE, TRUE); |
2048 | |
2049 | /* redraw all affected ways */ |
2050 | while(chain) { |
2051 | way_chain_t *next = chain->next; |
2052 | |
2053 | if(osm_way_number_of_nodes(chain->way) == 1) { |
2054 | /* this way now only contains one node and thus isn't a valid */ |
2055 | /* way anymore. So it'll also get deleted (which in turn may */ |
2056 | /* cause other nodes to be deleted as well) */ |
2057 | map_way_delete(appdata, chain->way); |
2058 | } else { |
2059 | map_item_t item; |
2060 | item.type = MAP_TYPE_WAY; |
2061 | item.way = chain->way; |
2062 | map_item_redraw(appdata, &item); |
2063 | } |
2064 | |
2065 | g_free(chain); |
2066 | |
2067 | chain = next; |
2068 | } |
2069 | |
2070 | break; |
2071 | |
2072 | case MAP_TYPE_WAY: |
2073 | printf("request to delete way #%ld\n", item.way->id); |
2074 | map_way_delete(appdata, item.way); |
2075 | break; |
2076 | |
2077 | default: |
2078 | g_assert((item.type == MAP_TYPE_NODE) || |
2079 | (item.type == MAP_TYPE_WAY)); |
2080 | break; |
2081 | } |
2082 | } |
2083 | |
2084 | /* ----------------------- track related stuff ----------------------- */ |
2085 | |
2086 | void map_track_draw_seg(map_t *map, track_seg_t *seg) { |
2087 | /* a track_seg needs at least 2 points to be drawn */ |
2088 | guint pnum = track_seg_points(seg); |
2089 | printf("seg of length %d\n", pnum); |
2090 | |
2091 | if(pnum == 1) { |
2092 | g_assert(!seg->item); |
2093 | |
2094 | seg->item = canvas_circle_new(map, CANVAS_GROUP_TRACK, |
2095 | seg->track_point->lpos.x, seg->track_point->lpos.y, |
2096 | map->style->track.width/2.0, 0, map->style->track.color, NO_COLOR); |
2097 | } |
2098 | |
2099 | if(pnum > 1) { |
2100 | |
2101 | /* allocate space for nodes */ |
2102 | canvas_points_t *points = canvas_points_new(pnum); |
2103 | |
2104 | int point = 0; |
2105 | track_point_t *track_point = seg->track_point; |
2106 | while(track_point) { |
2107 | points->coords[point++] = track_point->lpos.x; |
2108 | points->coords[point++] = track_point->lpos.y; |
2109 | track_point = track_point->next; |
2110 | } |
2111 | |
2112 | /* there may be a circle (one point line) */ |
2113 | if(seg->item) |
2114 | canvas_item_destroy(seg->item); |
2115 | |
2116 | seg->item = canvas_polyline_new(map, CANVAS_GROUP_TRACK, |
2117 | points, map->style->track.width, map->style->track.color); |
2118 | |
2119 | canvas_points_free(points); |
2120 | } |
2121 | } |
2122 | |
2123 | void map_track_update_seg(map_t *map, track_seg_t *seg) { |
2124 | /* a track_seg needs at least 2 points to be drawn */ |
2125 | guint pnum = track_seg_points(seg); |
2126 | printf("seg of length %d\n", pnum); |
2127 | |
2128 | if(pnum > 1) { |
2129 | |
2130 | /* allocate space for nodes */ |
2131 | canvas_points_t *points = canvas_points_new(pnum); |
2132 | |
2133 | int point = 0; |
2134 | track_point_t *track_point = seg->track_point; |
2135 | while(track_point) { |
2136 | canvas_point_set_pos(points, point++, &track_point->lpos); |
2137 | track_point = track_point->next; |
2138 | } |
2139 | |
2140 | g_assert(seg->item); |
2141 | canvas_item_set_points(seg->item, points); |
2142 | canvas_points_free(points); |
2143 | } |
2144 | } |
2145 | |
2146 | void map_track_draw(map_t *map, track_t *track) { |
2147 | track_seg_t *seg = track->track_seg; |
2148 | |
2149 | /* draw all segments */ |
2150 | while(seg) { |
2151 | map_track_draw_seg(map, seg); |
2152 | seg = seg->next; |
2153 | } |
2154 | } |
2155 | |
2156 | void map_track_remove(appdata_t *appdata) { |
2157 | track_t *track = appdata->track.track; |
2158 | |
2159 | printf("removing track\n"); |
2160 | |
2161 | g_assert(track); |
2162 | |
2163 | /* remove all segments */ |
2164 | track_seg_t *seg = track->track_seg; |
2165 | while(seg) { |
2166 | if(seg->item) { |
2167 | canvas_item_destroy(seg->item); |
2168 | seg->item = NULL; |
2169 | } |
2170 | |
2171 | seg = seg->next; |
2172 | } |
2173 | } |
2174 | |
2175 | void map_track_pos(appdata_t *appdata, lpos_t *lpos) { |
2176 | if(appdata->track.gps_item) { |
2177 | canvas_item_destroy(appdata->track.gps_item); |
2178 | appdata->track.gps_item = NULL; |
2179 | } |
2180 | |
2181 | if(lpos) |
2182 | appdata->track.gps_item = canvas_circle_new(appdata->map, CANVAS_GROUP_GPS, |
2183 | lpos->x, lpos->y, appdata->map->style->track.width/2.0, 0, |
2184 | RGB2CANVAS(appdata->map->style->track.gps_color), NO_COLOR); |
2185 | } |
2186 | |
2187 | /* ------------------- map background ------------------ */ |
2188 | |
2189 | void map_remove_bg_image(map_t *map) { |
2190 | if(!map) return; |
2191 | |
2192 | if(map->bg.item) { |
2193 | canvas_item_destroy(map->bg.item); |
2194 | map->bg.item = NULL; |
2195 | } |
2196 | } |
2197 | |
2198 | static gint map_bg_item_destroy_event(GtkWidget *widget, gpointer data) { |
2199 | map_t *map = (map_t*)data; |
2200 | |
2201 | /* destroying background item */ |
2202 | |
2203 | map->bg.item = NULL; |
2204 | if(map->bg.pix) { |
2205 | printf("destroying background item\n"); |
2206 | gdk_pixbuf_unref(map->bg.pix); |
2207 | map->bg.pix = NULL; |
2208 | } |
2209 | return FALSE; |
2210 | } |
2211 | |
2212 | void map_set_bg_image(map_t *map, char *filename) { |
2213 | bounds_t *bounds = map->appdata->osm->bounds; |
2214 | |
2215 | map_remove_bg_image(map); |
2216 | |
2217 | map->bg.pix = gdk_pixbuf_new_from_file(filename, NULL); |
2218 | |
2219 | /* calculate required scale factor */ |
2220 | map->bg.scale.x = (float)(bounds->max.x - bounds->min.x)/ |
2221 | (float)gdk_pixbuf_get_width(map->bg.pix); |
2222 | map->bg.scale.y = (float)(bounds->max.y - bounds->min.y)/ |
2223 | (float)gdk_pixbuf_get_height(map->bg.pix); |
2224 | |
2225 | map->bg.item = canvas_image_new(map, CANVAS_GROUP_BG, map->bg.pix, |
2226 | bounds->min.x, bounds->min.y, map->bg.scale.x, map->bg.scale.y); |
2227 | |
2228 | canvas_item_destroy_connect(map->bg.item, |
2229 | G_CALLBACK(map_bg_item_destroy_event), map); |
2230 | } |
2231 | |
2232 | |
2233 | /* -------- hide and show objects (for performance reasons) ------- */ |
2234 | |
2235 | void map_hide_selected(appdata_t *appdata) { |
2236 | map_t *map = appdata->map; |
2237 | if(!map) return; |
2238 | |
2239 | if(map->selected.type != MAP_TYPE_WAY) { |
2240 | printf("selected item is not a way\n"); |
2241 | return; |
2242 | } |
2243 | |
2244 | way_t *way = map->selected.way; |
2245 | printf("hiding way #%ld\n", way->id); |
2246 | |
2247 | map_item_deselect(appdata); |
2248 | way->flags |= OSM_FLAG_HIDDEN; |
2249 | map_item_chain_destroy(&way->map_item_chain); |
2250 | |
2251 | gtk_widget_set_sensitive(appdata->menu_item_map_show_all, TRUE); |
2252 | } |
2253 | |
2254 | void map_show_all(appdata_t *appdata) { |
2255 | map_t *map = appdata->map; |
2256 | if(!map) return; |
2257 | |
2258 | way_t *way = appdata->osm->way; |
2259 | while(way) { |
2260 | if(way->flags & OSM_FLAG_HIDDEN) { |
2261 | way->flags &= ~OSM_FLAG_HIDDEN; |
2262 | map_way_draw(map, way); |
2263 | } |
2264 | |
2265 | way = way->next; |
2266 | } |
2267 | |
2268 | gtk_widget_set_sensitive(appdata->menu_item_map_show_all, FALSE); |
2269 | } |
2270 | // vim:et:ts=8:sw=2:sts=2:ai |