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Color system cleaned up, desktop fullscreen
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 | !appdata->settings->no_icons) { |
151 | gint w = gdk_pixbuf_get_width(map_item->node->icon_buf); |
152 | gint h = gdk_pixbuf_get_height(map_item->node->icon_buf); |
153 | /* icons are technically square, so a radius slightly bigger */ |
154 | /* than sqrt(2)*MAX(w,h) should fit nicely */ |
155 | radius = 0.75 * map->style->icon.scale * ((w>h)?w:h); |
156 | } |
157 | |
158 | map_hl_circle_new(map, CANVAS_GROUP_NODES_HL, new_map_item, |
159 | x, y, radius, map->style->highlight.color); |
160 | |
161 | if(!map_item->item) { |
162 | /* and draw a fake node */ |
163 | new_map_item = g_new0(map_item_t, 1); |
164 | memcpy(new_map_item, map_item, sizeof(map_item_t)); |
165 | new_map_item->highlight = TRUE; |
166 | map_hl_circle_new(map, CANVAS_GROUP_NODES_HL, new_map_item, |
167 | x, y, map->style->node.radius, |
168 | map->style->highlight.node_color); |
169 | } |
170 | } |
171 | |
172 | void map_way_select(appdata_t *appdata, way_t *way) { |
173 | map_t *map = appdata->map; |
174 | map_item_t *map_item = &map->selected; |
175 | |
176 | g_assert(!map->highlight); |
177 | |
178 | map_item->type = MAP_TYPE_WAY; |
179 | map_item->way = way; |
180 | map_item->highlight = FALSE; |
181 | map_item->item = way->map_item_chain->map_item->item; |
182 | |
183 | map_statusbar(map, map_item); |
184 | icon_bar_map_item_selected(appdata, map_item, TRUE); |
185 | gtk_widget_set_sensitive(appdata->menu_item_map_hide_sel, TRUE); |
186 | |
187 | gint arrow_width = (map_item->way->draw.flags & OSM_DRAW_FLAG_BG)? |
188 | map->style->highlight.width + map_item->way->draw.bg.width/2: |
189 | map->style->highlight.width + map_item->way->draw.width/2; |
190 | |
191 | node_chain_t *node_chain = map_item->way->node_chain; |
192 | node_t *last = NULL; |
193 | while(node_chain) { |
194 | map_item_t item; |
195 | item.type = MAP_TYPE_NODE; |
196 | item.node = node_chain->node; |
197 | |
198 | /* draw an arrow between every two nodes */ |
199 | if(last) { |
200 | /* create a new map item for every arrow */ |
201 | map_item_t *new_map_item = g_new0(map_item_t, 1); |
202 | new_map_item->type = MAP_TYPE_WAY; |
203 | new_map_item->way = way; |
204 | new_map_item->highlight = TRUE; |
205 | |
206 | struct { float x, y;} center, diff; |
207 | center.x = (last->lpos.x + node_chain->node->lpos.x)/2; |
208 | center.y = (last->lpos.y + node_chain->node->lpos.y)/2; |
209 | diff.x = node_chain->node->lpos.x - last->lpos.x; |
210 | diff.y = node_chain->node->lpos.y - last->lpos.y; |
211 | |
212 | /* only draw arrow if there's sufficient space */ |
213 | /* TODO: what if there's not enough space anywhere? */ |
214 | float len = sqrt(pow(diff.x, 2)+pow(diff.y, 2)); |
215 | if(len > map->style->highlight.arrow_limit*arrow_width) { |
216 | len /= arrow_width; |
217 | diff.x = diff.x / len; |
218 | diff.y = diff.y / len; |
219 | |
220 | canvas_points_t *points = canvas_points_new(4); |
221 | points->coords[2*0+0] = points->coords[2*3+0] = center.x + diff.x; |
222 | points->coords[2*0+1] = points->coords[2*3+1] = center.y + diff.y; |
223 | points->coords[2*1+0] = center.x + diff.y - diff.x; |
224 | points->coords[2*1+1] = center.y - diff.x - diff.y; |
225 | points->coords[2*2+0] = center.x - diff.y - diff.x; |
226 | points->coords[2*2+1] = center.y + diff.x - diff.y; |
227 | |
228 | map_hl_polygon_new(map, CANVAS_GROUP_NODES_HL, new_map_item, |
229 | points, map->style->highlight.arrow_color); |
230 | |
231 | canvas_points_free(points); |
232 | } |
233 | } |
234 | |
235 | if(!map_hl_item_is_highlighted(map, &item)) { |
236 | |
237 | /* create a new map item for every node */ |
238 | map_item_t *new_map_item = g_new0(map_item_t, 1); |
239 | new_map_item->type = MAP_TYPE_NODE; |
240 | new_map_item->node = node_chain->node; |
241 | new_map_item->highlight = TRUE; |
242 | |
243 | gint x = node_chain->node->lpos.x; |
244 | gint y = node_chain->node->lpos.y; |
245 | |
246 | map_hl_circle_new(map, CANVAS_GROUP_NODES_HL, new_map_item, |
247 | x, y, map->style->node.radius, |
248 | map->style->highlight.node_color); |
249 | } |
250 | |
251 | last = node_chain->node; |
252 | node_chain = node_chain->next; |
253 | } |
254 | |
255 | /* a way needs at least 2 points to be drawn */ |
256 | guint nodes = osm_way_number_of_nodes(way); |
257 | if(nodes > 1) { |
258 | |
259 | /* allocate space for nodes */ |
260 | canvas_points_t *points = canvas_points_new(nodes); |
261 | |
262 | int node = 0; |
263 | node_chain = map_item->way->node_chain; |
264 | while(node_chain) { |
265 | canvas_point_set_pos(points, node++, &node_chain->node->lpos); |
266 | node_chain = node_chain->next; |
267 | } |
268 | |
269 | /* create a copy of this map item and mark it as being a highlight */ |
270 | map_item_t *new_map_item = g_new0(map_item_t, 1); |
271 | memcpy(new_map_item, map_item, sizeof(map_item_t)); |
272 | new_map_item->highlight = TRUE; |
273 | |
274 | map_hl_polyline_new(map, CANVAS_GROUP_WAYS_HL, new_map_item, points, |
275 | (map_item->way->draw.flags & OSM_DRAW_FLAG_BG)? |
276 | 2*map->style->highlight.width + map_item->way->draw.bg.width: |
277 | 2*map->style->highlight.width + map_item->way->draw.width, |
278 | map->style->highlight.color); |
279 | |
280 | canvas_points_free(points); |
281 | } |
282 | } |
283 | |
284 | static void map_item_select(appdata_t *appdata, map_item_t *map_item) { |
285 | switch(map_item->type) { |
286 | case MAP_TYPE_NODE: |
287 | map_node_select(appdata, map_item->node); |
288 | break; |
289 | case MAP_TYPE_WAY: |
290 | map_way_select(appdata, map_item->way); |
291 | break; |
292 | default: |
293 | g_assert((map_item->type == MAP_TYPE_NODE)|| |
294 | (map_item->type == MAP_TYPE_WAY)); |
295 | break; |
296 | } |
297 | } |
298 | |
299 | void map_item_deselect(appdata_t *appdata) { |
300 | |
301 | /* save tags for "last" function in info dialog */ |
302 | if(appdata->map->selected.type == MAP_TYPE_NODE) { |
303 | if(appdata->map->last_node_tags) |
304 | osm_tags_free(appdata->map->last_node_tags); |
305 | |
306 | appdata->map->last_node_tags = |
307 | osm_tags_copy(appdata->map->selected.node->tag, FALSE); |
308 | } else if(appdata->map->selected.type == MAP_TYPE_WAY) { |
309 | if(appdata->map->last_way_tags) |
310 | osm_tags_free(appdata->map->last_way_tags); |
311 | |
312 | appdata->map->last_way_tags = |
313 | osm_tags_copy(appdata->map->selected.way->tag, FALSE); |
314 | } |
315 | |
316 | /* remove statusbar message */ |
317 | statusbar_set(appdata, NULL, FALSE); |
318 | |
319 | /* disable/enable icons in icon bar */ |
320 | icon_bar_map_item_selected(appdata, NULL, FALSE); |
321 | gtk_widget_set_sensitive(appdata->menu_item_map_hide_sel, FALSE); |
322 | |
323 | /* remove highlight */ |
324 | map_hl_remove(appdata); |
325 | |
326 | /* forget about selection */ |
327 | appdata->map->selected.type = MAP_TYPE_ILLEGAL; |
328 | } |
329 | |
330 | /* called whenever a map item is to be destroyed */ |
331 | static gint map_item_destroy_event(GtkWidget *widget, gpointer data) { |
332 | map_item_t *map_item = (map_item_t*)data; |
333 | |
334 | // printf("destroying map_item @ %p\n", map_item); |
335 | |
336 | #ifdef DESTROY_WAIT_FOR_GTK |
337 | /* remove item from nodes/ways map_item_chain */ |
338 | map_item_chain_t **chain = NULL; |
339 | if(map_item->type == MAP_TYPE_NODE) |
340 | chain = &map_item->node->map_item_chain; |
341 | else if(map_item->type == MAP_TYPE_WAY) |
342 | chain = &map_item->way->map_item_chain; |
343 | |
344 | /* there must be a chain with content, otherwise things are broken */ |
345 | g_assert(chain); |
346 | g_assert(*chain); |
347 | |
348 | /* search current map_item, ... */ |
349 | while(*chain && (*chain)->map_item != map_item) |
350 | chain = &(*chain)->next; |
351 | |
352 | g_assert(*chain); |
353 | |
354 | /* ... remove it from chain and free it */ |
355 | map_item_chain_t *tmp = *chain; |
356 | *chain = (*chain)->next; |
357 | |
358 | g_free(tmp); |
359 | #endif |
360 | |
361 | g_free(map_item); |
362 | return FALSE; |
363 | } |
364 | |
365 | static canvas_item_t *map_node_new(map_t *map, node_t *node, gint radius, |
366 | gint width, canvas_color_t fill, canvas_color_t border) { |
367 | |
368 | map_item_t *map_item = g_new0(map_item_t, 1); |
369 | map_item->type = MAP_TYPE_NODE; |
370 | map_item->node = node; |
371 | |
372 | if(!node->icon_buf || !map->style->icon.enable || |
373 | map->appdata->settings->no_icons) |
374 | map_item->item = canvas_circle_new(map, CANVAS_GROUP_NODES, |
375 | node->lpos.x, node->lpos.y, radius, width, fill, border); |
376 | else |
377 | map_item->item = canvas_image_new(map, CANVAS_GROUP_NODES, |
378 | node->icon_buf, |
379 | node->lpos.x - map->style->icon.scale/2 * |
380 | gdk_pixbuf_get_width(node->icon_buf), |
381 | node->lpos.y - map->style->icon.scale/2 * |
382 | gdk_pixbuf_get_height(node->icon_buf), |
383 | map->style->icon.scale,map->style->icon.scale); |
384 | |
385 | canvas_item_set_zoom_max(map_item->item, node->zoom_max); |
386 | |
387 | /* attach map_item to nodes map_item_chain */ |
388 | map_item_chain_t **chain = &node->map_item_chain; |
389 | while(*chain) chain = &(*chain)->next; |
390 | *chain = g_new0(map_item_chain_t, 1); |
391 | (*chain)->map_item = map_item; |
392 | |
393 | canvas_item_set_user_data(map_item->item, map_item); |
394 | |
395 | canvas_item_destroy_connect(map_item->item, |
396 | G_CALLBACK(map_item_destroy_event), map_item); |
397 | |
398 | return map_item->item; |
399 | } |
400 | |
401 | /* in the rare case that a way consists of only one node, it is */ |
402 | /* drawn as a circle. This e.g. happens when drawing a new way */ |
403 | static canvas_item_t *map_way_single_new(map_t *map, way_t *way, gint radius, |
404 | gint width, canvas_color_t fill, canvas_color_t border) { |
405 | |
406 | map_item_t *map_item = g_new0(map_item_t, 1); |
407 | map_item->type = MAP_TYPE_WAY; |
408 | map_item->way = way; |
409 | map_item->item = canvas_circle_new(map, CANVAS_GROUP_WAYS, |
410 | way->node_chain->node->lpos.x, way->node_chain->node->lpos.y, |
411 | radius, width, fill, border); |
412 | |
413 | // TODO: decide: do we need canvas_item_set_zoom_max() here too? |
414 | |
415 | /* attach map_item to nodes map_item_chain */ |
416 | map_item_chain_t **chain = &way->map_item_chain; |
417 | while(*chain) chain = &(*chain)->next; |
418 | *chain = g_new0(map_item_chain_t, 1); |
419 | (*chain)->map_item = map_item; |
420 | |
421 | canvas_item_set_user_data(map_item->item, map_item); |
422 | |
423 | canvas_item_destroy_connect(map_item->item, |
424 | G_CALLBACK(map_item_destroy_event), map_item); |
425 | |
426 | return map_item->item; |
427 | } |
428 | |
429 | static canvas_item_t *map_way_new(map_t *map, canvas_group_t group, |
430 | way_t *way, canvas_points_t *points, gint width, |
431 | canvas_color_t color, canvas_color_t fill_color) { |
432 | map_item_t *map_item = g_new0(map_item_t, 1); |
433 | map_item->type = MAP_TYPE_WAY; |
434 | map_item->way = way; |
435 | |
436 | if(way->draw.flags & OSM_DRAW_FLAG_AREA) { |
437 | if(map->style->area.color & 0xff) |
438 | map_item->item = canvas_polygon_new(map, group, points, |
439 | width, color, fill_color); |
440 | else |
441 | map_item->item = canvas_polyline_new(map, group, points, |
442 | width, color); |
443 | } else { |
444 | map_item->item = canvas_polyline_new(map, group, points, width, color); |
445 | } |
446 | |
447 | canvas_item_set_zoom_max(map_item->item, way->draw.zoom_max); |
448 | |
449 | if (group != CANVAS_GROUP_WAYS_OL) |
450 | if (way->draw.dashed) |
451 | canvas_item_set_dashed(map_item->item); |
452 | |
453 | /* attach map_item to ways map_item_chain */ |
454 | map_item_chain_t **chain = &way->map_item_chain; |
455 | while(*chain) chain = &(*chain)->next; |
456 | *chain = g_new0(map_item_chain_t, 1); |
457 | (*chain)->map_item = map_item; |
458 | |
459 | canvas_item_set_user_data(map_item->item, map_item); |
460 | |
461 | canvas_item_destroy_connect(map_item->item, |
462 | G_CALLBACK(map_item_destroy_event), map_item); |
463 | |
464 | return map_item->item; |
465 | } |
466 | |
467 | void map_show_node(map_t *map, node_t *node) { |
468 | map_node_new(map, node, map->style->node.radius, 0, |
469 | map->style->node.color, 0); |
470 | } |
471 | |
472 | void map_way_draw(map_t *map, way_t *way) { |
473 | |
474 | /* don't draw a way that's not there anymore */ |
475 | if(way->flags & (OSM_FLAG_DELETED | OSM_FLAG_HIDDEN)) |
476 | return; |
477 | |
478 | /* allocate space for nodes */ |
479 | /* a way needs at least 2 points to be drawn */ |
480 | guint nodes = osm_way_number_of_nodes(way); |
481 | if(nodes == 1) { |
482 | /* draw a single dot where this single node is */ |
483 | map_way_single_new(map, way, map->style->node.radius, 0, |
484 | map->style->node.color, 0); |
485 | } else { |
486 | canvas_points_t *points = canvas_points_new(nodes); |
487 | |
488 | int node = 0; |
489 | node_chain_t *node_chain = way->node_chain; |
490 | while(node_chain) { |
491 | canvas_point_set_pos(points, node++, &node_chain->node->lpos); |
492 | node_chain = node_chain->next; |
493 | } |
494 | |
495 | /* draw way */ |
496 | if(way->draw.flags & OSM_DRAW_FLAG_AREA) { |
497 | map_way_new(map, CANVAS_GROUP_POLYGONS, way, points, |
498 | way->draw.width, way->draw.color, way->draw.area.color); |
499 | } else { |
500 | map_way_new(map, CANVAS_GROUP_WAYS, way, points, |
501 | way->draw.width, way->draw.color, NO_COLOR); |
502 | |
503 | if(way->draw.flags & OSM_DRAW_FLAG_BG) |
504 | map_way_new(map, CANVAS_GROUP_WAYS_OL, way, points, |
505 | way->draw.bg.width, way->draw.bg.color, NO_COLOR); |
506 | } |
507 | canvas_points_free(points); |
508 | } |
509 | } |
510 | |
511 | void map_node_draw(map_t *map, node_t *node) { |
512 | /* don't draw a node that's not there anymore */ |
513 | if(node->flags & OSM_FLAG_DELETED) |
514 | return; |
515 | |
516 | if(!node->ways) |
517 | map_node_new(map, node, |
518 | map->style->node.radius, |
519 | map->style->node.border_radius, |
520 | map->style->node.fill_color, |
521 | map->style->node.color); |
522 | |
523 | else if(map->style->node.show_untagged || osm_node_has_tag(node)) |
524 | map_node_new(map, node, |
525 | map->style->node.radius, 0, |
526 | map->style->node.color, 0); |
527 | } |
528 | |
529 | static void map_item_draw(map_t *map, map_item_t *map_item) { |
530 | switch(map_item->type) { |
531 | case MAP_TYPE_NODE: |
532 | map_node_draw(map, map_item->node); |
533 | break; |
534 | case MAP_TYPE_WAY: |
535 | map_way_draw(map, map_item->way); |
536 | break; |
537 | default: |
538 | g_assert((map_item->type == MAP_TYPE_NODE) || |
539 | (map_item->type == MAP_TYPE_WAY)); |
540 | } |
541 | } |
542 | |
543 | static void map_item_remove(map_t *map, map_item_t *map_item) { |
544 | map_item_chain_t **chainP = NULL; |
545 | |
546 | switch(map_item->type) { |
547 | case MAP_TYPE_NODE: |
548 | chainP = &map_item->node->map_item_chain; |
549 | break; |
550 | case MAP_TYPE_WAY: |
551 | chainP = &map_item->way->map_item_chain; |
552 | break; |
553 | default: |
554 | g_assert((map_item->type == MAP_TYPE_NODE) || |
555 | (map_item->type == MAP_TYPE_WAY)); |
556 | } |
557 | |
558 | map_item_chain_destroy(chainP); |
559 | } |
560 | |
561 | static void map_item_init(style_t *style, map_item_t *map_item) { |
562 | switch (map_item->type){ |
563 | case MAP_TYPE_WAY: |
564 | josm_elemstyles_colorize_way(style, map_item->way); |
565 | break; |
566 | case MAP_TYPE_NODE: |
567 | josm_elemstyles_colorize_node(style, map_item->node); |
568 | break; |
569 | default: |
570 | g_assert((map_item->type == MAP_TYPE_NODE) || |
571 | (map_item->type == MAP_TYPE_WAY)); |
572 | } |
573 | } |
574 | |
575 | void map_item_redraw(appdata_t *appdata, map_item_t *map_item) { |
576 | map_item_t item = *map_item; |
577 | |
578 | /* check if the item to be redrawn is the selected one */ |
579 | gboolean is_selected = FALSE; |
580 | if(map_item->ptr == appdata->map->selected.ptr) { |
581 | map_item_deselect(appdata); |
582 | is_selected = TRUE; |
583 | } |
584 | |
585 | map_item_remove(appdata->map, &item); |
586 | map_item_init(appdata->map->style, &item); |
587 | map_item_draw(appdata->map, &item); |
588 | |
589 | /* restore selection if there was one */ |
590 | if(is_selected) |
591 | map_item_select(appdata, &item); |
592 | } |
593 | |
594 | static void map_frisket_rectangle(canvas_points_t *points, |
595 | gint x0, gint x1, gint y0, gint y1) { |
596 | points->coords[2*0+0] = points->coords[2*3+0] = points->coords[2*4+0] = x0; |
597 | points->coords[2*1+0] = points->coords[2*2+0] = x1; |
598 | points->coords[2*0+1] = points->coords[2*1+1] = points->coords[2*4+1] = y0; |
599 | points->coords[2*2+1] = points->coords[2*3+1] = y1; |
600 | } |
601 | |
602 | /* Draw the frisket area which masks off areas it'd be unsafe to edit, |
603 | * plus its inner edge marker line */ |
604 | void map_frisket_draw(map_t *map, bounds_t *bounds) { |
605 | canvas_points_t *points = canvas_points_new(5); |
606 | |
607 | /* don't draw frisket at all if it's completely transparent */ |
608 | if(map->style->frisket.color & 0xff) { |
609 | elemstyle_color_t color = map->style->frisket.color; |
610 | |
611 | float mult = map->style->frisket.mult; |
612 | |
613 | /* top rectangle */ |
614 | map_frisket_rectangle(points, mult*bounds->min.x, mult*bounds->max.x, |
615 | mult*bounds->min.y, bounds->min.y); |
616 | canvas_polygon_new(map, CANVAS_GROUP_NODES, points, 1, NO_COLOR, color); |
617 | |
618 | /* bottom rectangle */ |
619 | map_frisket_rectangle(points, mult*bounds->min.x, mult*bounds->max.x, |
620 | bounds->max.y, mult*bounds->max.y); |
621 | canvas_polygon_new(map, CANVAS_GROUP_NODES, points, 1, NO_COLOR, color); |
622 | |
623 | /* left rectangle */ |
624 | map_frisket_rectangle(points, mult*bounds->min.x, bounds->min.x, |
625 | mult*bounds->min.y, mult*bounds->max.y); |
626 | canvas_polygon_new(map, CANVAS_GROUP_NODES, points, 1, NO_COLOR, color); |
627 | |
628 | /* right rectangle */ |
629 | map_frisket_rectangle(points, bounds->max.x, mult*bounds->max.x, |
630 | mult*bounds->min.y, mult*bounds->max.y); |
631 | canvas_polygon_new(map, CANVAS_GROUP_NODES, points, 1, NO_COLOR, color); |
632 | |
633 | } |
634 | |
635 | if(map->style->frisket.border.present) { |
636 | // Edge marker line |
637 | gint ew2 = map->style->frisket.border.width/2; |
638 | map_frisket_rectangle(points, |
639 | bounds->min.x-ew2, bounds->max.x+ew2, |
640 | bounds->min.y-ew2, bounds->max.y+ew2); |
641 | |
642 | canvas_polyline_new(map, CANVAS_GROUP_NODES, points, |
643 | map->style->frisket.border.width, |
644 | map->style->frisket.border.color); |
645 | |
646 | } |
647 | canvas_points_free(points); |
648 | } |
649 | |
650 | static void map_draw(map_t *map, osm_t *osm) { |
651 | g_assert(map->canvas); |
652 | |
653 | printf("drawing ways ...\n"); |
654 | way_t *way = osm->way; |
655 | while(way) { |
656 | map_way_draw(map, way); |
657 | way = way->next; |
658 | } |
659 | |
660 | printf("drawing single nodes ...\n"); |
661 | node_t *node = osm->node; |
662 | while(node) { |
663 | map_node_draw(map, node); |
664 | node = node->next; |
665 | } |
666 | |
667 | printf("drawing frisket...\n"); |
668 | map_frisket_draw(map, osm->bounds); |
669 | } |
670 | |
671 | void map_state_free(map_state_t *state) { |
672 | if(!state) return; |
673 | |
674 | /* free state of noone else references it */ |
675 | if(state->refcount > 1) |
676 | state->refcount--; |
677 | else |
678 | g_free(state); |
679 | } |
680 | |
681 | void map_free_map_item_chains(appdata_t *appdata) { |
682 | if(!appdata->osm) return; |
683 | |
684 | #ifndef DESTROY_WAIT_FOR_GTK |
685 | printf(" DESTROY_WAIT_FOR_GTK not set, removing all chains now\n"); |
686 | |
687 | /* free all map_item_chains */ |
688 | node_t *node = appdata->osm->node; |
689 | while(node) { |
690 | map_item_chain_t *chain = node->map_item_chain; |
691 | while(chain) { |
692 | map_item_chain_t *next = chain->next; |
693 | g_free(chain); |
694 | chain = next; |
695 | } |
696 | node->map_item_chain = NULL; |
697 | node = node->next; |
698 | } |
699 | |
700 | way_t *way = appdata->osm->way; |
701 | while(way) { |
702 | map_item_chain_t *chain = way->map_item_chain; |
703 | while(chain) { |
704 | map_item_chain_t *next = chain->next; |
705 | g_free(chain); |
706 | chain = next; |
707 | } |
708 | way->map_item_chain = NULL; |
709 | way = way->next; |
710 | } |
711 | #endif |
712 | } |
713 | |
714 | static gint map_destroy_event(GtkWidget *widget, gpointer data) { |
715 | appdata_t *appdata = (appdata_t*)data; |
716 | map_t *map = appdata->map; |
717 | |
718 | printf("destroying entire map\n"); |
719 | |
720 | map_free_map_item_chains(appdata); |
721 | |
722 | /* free buffered tags */ |
723 | if(map->last_node_tags) osm_tags_free(map->last_node_tags); |
724 | if(map->last_way_tags) osm_tags_free(map->last_way_tags); |
725 | |
726 | map_state_free(map->state); |
727 | |
728 | if(map->style) |
729 | style_free(map->style); |
730 | |
731 | /* destroy existing highlight */ |
732 | if(map->highlight) { |
733 | printf("removing highlight\n"); |
734 | |
735 | map_highlight_t *hl = map->highlight; |
736 | while(hl) { |
737 | map_highlight_t *next = hl->next; |
738 | g_free(hl); |
739 | hl = next; |
740 | } |
741 | } |
742 | |
743 | g_free(map); |
744 | |
745 | appdata->map = NULL; |
746 | |
747 | return FALSE; |
748 | } |
749 | |
750 | /* get the item at position x, y */ |
751 | map_item_t *map_item_at(map_t *map, gint x, gint y) { |
752 | printf("map check at %d/%d\n", x, y); |
753 | |
754 | canvas_window2world(map->canvas, x, y, &x, &y); |
755 | |
756 | printf("world check at %d/%d\n", x, y); |
757 | |
758 | canvas_item_t *item = canvas_get_item_at(map->canvas, x, y); |
759 | |
760 | if(!item) { |
761 | printf(" there's no item\n"); |
762 | return NULL; |
763 | } |
764 | |
765 | printf(" there's an item (%p)\n", item); |
766 | |
767 | map_item_t *map_item = canvas_item_get_user_data(item); |
768 | |
769 | if(!map_item) { |
770 | printf(" item has no user data!\n"); |
771 | return NULL; |
772 | } |
773 | |
774 | if(map_item->highlight) |
775 | printf(" item is highlight\n"); |
776 | |
777 | switch(map_item->type) { |
778 | case MAP_TYPE_NODE: |
779 | printf(" item is node #%ld\n", map_item->node->id); |
780 | break; |
781 | case MAP_TYPE_WAY: |
782 | printf(" item is way #%ld\n", map_item->way->id); |
783 | break; |
784 | default: |
785 | printf(" unknown item\n"); |
786 | break; |
787 | } |
788 | |
789 | return map_item; |
790 | } |
791 | |
792 | /* get the real item (no highlight) at x, y */ |
793 | map_item_t *map_real_item_at(map_t *map, gint x, gint y) { |
794 | map_item_t *map_item = map_item_at(map, x, y); |
795 | |
796 | /* no item or already a real one */ |
797 | if(!map_item || !map_item->highlight) return map_item; |
798 | |
799 | /* get the item (parent) this item is the highlight of */ |
800 | map_item_t *parent = NULL; |
801 | switch(map_item->type) { |
802 | |
803 | case MAP_TYPE_NODE: |
804 | if(map_item->node->map_item_chain) |
805 | parent = map_item->node->map_item_chain->map_item; |
806 | |
807 | if(parent) |
808 | printf(" using parent item node #%ld\n", parent->node->id); |
809 | break; |
810 | |
811 | case MAP_TYPE_WAY: |
812 | if(map_item->way->map_item_chain) |
813 | parent = map_item->way->map_item_chain->map_item; |
814 | |
815 | if(parent) |
816 | printf(" using parent item way #%ld\n", parent->way->id); |
817 | break; |
818 | |
819 | default: |
820 | g_assert((map_item->type == MAP_TYPE_NODE) || |
821 | (map_item->type == MAP_TYPE_WAY)); |
822 | break; |
823 | } |
824 | |
825 | if(parent) |
826 | map_item = parent; |
827 | else |
828 | printf(" no parent, working on highlight itself\n"); |
829 | |
830 | return map_item; |
831 | } |
832 | |
833 | |
834 | |
835 | #ifdef USE_GOOCANVAS |
836 | |
837 | /* Limitations on the amount by which we can scroll. Keeps part of the |
838 | * map visible at all times */ |
839 | static void map_limit_scroll(map_t *map, gint *sx, gint *sy) { |
840 | gdouble zoom = goo_canvas_get_scale(GOO_CANVAS(map->canvas)); |
841 | |
842 | gint sx_cu = *sx / zoom; |
843 | gint sy_cu = *sy / zoom; |
844 | |
845 | // Canvas viewport dimensions |
846 | GtkAllocation *a = >K_WIDGET(map->canvas)->allocation; |
847 | gint aw_cu = a->width / zoom; |
848 | gint ah_cu = a->height / zoom; |
849 | |
850 | // Data rect minimum and maximum |
851 | gint min_x, min_y, max_x, max_y; |
852 | min_x = map->appdata->osm->bounds->min.x; |
853 | min_y = map->appdata->osm->bounds->min.y; |
854 | max_x = map->appdata->osm->bounds->max.x; |
855 | max_y = map->appdata->osm->bounds->max.y; |
856 | |
857 | // limit stops - prevent scrolling beyond these |
858 | gint min_sy_cu = 0.95*(min_y - ah_cu); |
859 | gint min_sx_cu = 0.95*(min_x - aw_cu); |
860 | gint max_sy_cu = 0.95*(max_y); |
861 | gint max_sx_cu = 0.95*(max_x); |
862 | if (sy_cu < min_sy_cu) { *sy = min_sy_cu*zoom; } |
863 | if (sx_cu < min_sx_cu) { *sx = min_sx_cu*zoom; } |
864 | if (sy_cu > max_sy_cu) { *sy = max_sy_cu*zoom; } |
865 | if (sx_cu > max_sx_cu) { *sx = max_sx_cu*zoom; } |
866 | } |
867 | |
868 | |
869 | /* Limit a proposed zoom factor to sane ranges. |
870 | * Specifically the map is allowed to be no smaller than the viewport. */ |
871 | static gboolean map_limit_zoom(map_t *map, gdouble *zoom) { |
872 | // Data rect minimum and maximum |
873 | gint min_x, min_y, max_x, max_y; |
874 | min_x = map->appdata->osm->bounds->min.x; |
875 | min_y = map->appdata->osm->bounds->min.y; |
876 | max_x = map->appdata->osm->bounds->max.x; |
877 | max_y = map->appdata->osm->bounds->max.y; |
878 | |
879 | // Canvas viewport dimensions |
880 | GtkAllocation *a = >K_WIDGET(map->canvas)->allocation; |
881 | gint ah_cu = a->height / *zoom; |
882 | gint aw_cu = a->width / *zoom; |
883 | |
884 | gdouble oldzoom = *zoom; |
885 | if (ah_cu < aw_cu) { |
886 | gint lim_h = ah_cu*0.95; |
887 | if (max_y-min_y < lim_h) { |
888 | gdouble corr = ((gdouble)max_y-min_y) / (gdouble)lim_h; |
889 | *zoom /= corr; |
890 | } |
891 | } |
892 | else { |
893 | gint lim_w = aw_cu*0.95; |
894 | if (max_x-min_x < lim_w) { |
895 | gdouble corr = ((gdouble)max_x-min_x) / (gdouble)lim_w; |
896 | *zoom /= corr; |
897 | } |
898 | } |
899 | if (*zoom != oldzoom) { |
900 | printf("Can't zoom further out\n"); |
901 | return 1; |
902 | } |
903 | return 0; |
904 | } |
905 | |
906 | |
907 | #if 0 |
908 | /* Scroll the map a little towards the centre from where it is right now. |
909 | * This is used as a cute recentring trick when the map is at its outer |
910 | * scroll limit. */ |
911 | static void map_scroll_towards_centre(map_t *map, gdouble amt) { |
912 | gint sx, sy, sx_orig, sy_orig; |
913 | canvas_get_scroll_offsets(map->canvas, &sx, &sy); |
914 | gdouble zoom = goo_canvas_get_scale(GOO_CANVAS(map->canvas)); |
915 | sx_orig=sx; |
916 | sy_orig=sy; |
917 | |
918 | // Work in canvas units |
919 | gdouble sx_cu = sx / zoom; |
920 | gdouble sy_cu = sy / zoom; |
921 | |
922 | // Map bounds |
923 | gdouble bmin_x_cu, bmin_y_cu, bmax_x_cu, bmax_y_cu; |
924 | bmin_x_cu = map->appdata->osm->bounds->min.x; |
925 | bmin_y_cu = map->appdata->osm->bounds->min.y; |
926 | bmax_x_cu = map->appdata->osm->bounds->max.x; |
927 | bmax_y_cu = map->appdata->osm->bounds->max.y; |
928 | |
929 | // Canvas viewport dimensions |
930 | GtkAllocation *a = >K_WIDGET(map->canvas)->allocation; |
931 | gdouble ah_cu = a->height / zoom; |
932 | gdouble aw_cu = a->width / zoom; |
933 | |
934 | // Scroll offsets that would recentre the map |
935 | gdouble centre_sx_cu, centre_sy_cu; |
936 | centre_sx_cu = - (aw_cu/2); |
937 | centre_sy_cu = - (ah_cu/2); |
938 | |
939 | // Move towards centre by a given fraction of the whole map |
940 | if (sx_cu > centre_sx_cu) { |
941 | sx_cu -= ((bmax_x_cu - bmin_x_cu) * amt); |
942 | if (sx_cu < centre_sx_cu) { |
943 | printf("force-centre-x\n"); |
944 | sx_cu = centre_sx_cu; |
945 | } |
946 | } |
947 | if (sx_cu < centre_sx_cu) { |
948 | sx_cu += ((bmax_x_cu - bmin_x_cu) * amt); |
949 | if (sx_cu > centre_sx_cu) { |
950 | printf("force-centre-x\n"); |
951 | sx_cu = centre_sx_cu; |
952 | } |
953 | } |
954 | |
955 | if (sy_cu > centre_sy_cu) { |
956 | sy_cu -= ((bmax_y_cu - bmin_y_cu) * amt); |
957 | if (sy_cu < centre_sy_cu) { |
958 | printf("force-centre-y\n"); |
959 | sy_cu = centre_sy_cu; |
960 | } |
961 | } |
962 | if (sy_cu < centre_sy_cu) { |
963 | sy_cu += ((bmax_y_cu - bmin_y_cu) * amt); |
964 | if (sy_cu > centre_sy_cu) { |
965 | printf("force-centre-y\n"); |
966 | sy_cu = centre_sy_cu; |
967 | } |
968 | } |
969 | |
970 | // Back to pixels for setting the scroll |
971 | sx = (gint)(sx_cu * zoom); |
972 | sy = (gint)(sy_cu * zoom); |
973 | canvas_scroll_to(map->canvas, sx, sy); |
974 | map->state->scroll_offset.x = sx; |
975 | map->state->scroll_offset.y = sy; |
976 | } |
977 | #endif // #if 0 |
978 | |
979 | /* |
980 | * Scroll the map to a point if that point is currently offscreen. |
981 | */ |
982 | void map_scroll_to_if_offscreen(map_t *map, lpos_t *lpos) { |
983 | |
984 | // Ignore anything outside the working area |
985 | if (!(map && map->appdata && map->appdata->osm)) { |
986 | return; |
987 | } |
988 | gint min_x, min_y, max_x, max_y; |
989 | min_x = map->appdata->osm->bounds->min.x; |
990 | min_y = map->appdata->osm->bounds->min.y; |
991 | max_x = map->appdata->osm->bounds->max.x; |
992 | max_y = map->appdata->osm->bounds->max.y; |
993 | if ( (lpos->x > max_x) || (lpos->x < min_x) |
994 | || (lpos->y > max_y) || (lpos->y < min_y)) { |
995 | printf("cannot scroll to (%d, %d): outside the working area\n", |
996 | lpos->x, lpos->y); |
997 | return; |
998 | } |
999 | |
1000 | // Viewport dimensions in canvas space |
1001 | gdouble zoom = goo_canvas_get_scale(GOO_CANVAS(map->canvas)); |
1002 | GtkAllocation *a = >K_WIDGET(map->canvas)->allocation; |
1003 | gdouble aw = a->width / zoom; |
1004 | gdouble ah = a->height / zoom; |
1005 | |
1006 | // Is the point still onscreen? |
1007 | gboolean vert_recentre_needed = FALSE; |
1008 | gboolean horiz_recentre_needed = FALSE; |
1009 | gint sx, sy; |
1010 | canvas_get_scroll_offsets(map->canvas, &sx, &sy); |
1011 | gint viewport_left = (sx/zoom); |
1012 | gint viewport_right = (sx/zoom)+aw; |
1013 | gint viewport_top = (sy/zoom); |
1014 | gint viewport_bottom = (sy/zoom)+ah; |
1015 | if (lpos->x > viewport_right) { |
1016 | printf("** off right edge (%d > %d)\n", lpos->x, viewport_right); |
1017 | horiz_recentre_needed = TRUE; |
1018 | } |
1019 | if (lpos->x < viewport_left) { |
1020 | printf("** off left edge (%d < %d)\n", lpos->x, viewport_left); |
1021 | horiz_recentre_needed = TRUE; |
1022 | } |
1023 | if (lpos->y > viewport_bottom) { |
1024 | printf("** off bottom edge (%d > %d)\n", lpos->y, viewport_bottom); |
1025 | vert_recentre_needed = TRUE; |
1026 | } |
1027 | if (lpos->y < viewport_top) { |
1028 | printf("** off top edge (%d < %d)\n", lpos->y, viewport_top); |
1029 | vert_recentre_needed = TRUE; |
1030 | } |
1031 | |
1032 | if (horiz_recentre_needed || vert_recentre_needed) { |
1033 | gint new_sx, new_sy; |
1034 | #if 0 |
1035 | // Only recentre the drifting axis. |
1036 | new_sx = horiz_recentre_needed ? zoom*(lpos->x - (aw/2)) : sx; |
1037 | new_sy = vert_recentre_needed ? zoom*(lpos->y - (ah/2)) : sy; |
1038 | // Not sure about this. I don't think it really buys us anything. |
1039 | #else |
1040 | // Just centre both at once |
1041 | new_sx = zoom * (lpos->x - (aw/2)); |
1042 | new_sy = zoom * (lpos->y - (ah/2)); |
1043 | #endif |
1044 | map_limit_scroll(map, &new_sx, &new_sy); |
1045 | canvas_scroll_to(map->canvas, new_sx, new_sy); |
1046 | } |
1047 | } |
1048 | |
1049 | #endif // #ifdef USE_GOOCANVAS |
1050 | |
1051 | /* Deselects the current way or node if its zoom_max |
1052 | * means that it's not going to render at the current map zoom. */ |
1053 | void map_deselect_if_zoom_below_zoom_max(map_t *map) { |
1054 | if (map->selected.type == MAP_TYPE_WAY) { |
1055 | printf("will deselect way if zoomed below %f\n", |
1056 | map->selected.way->draw.zoom_max); |
1057 | if (map->state->zoom < map->selected.way->draw.zoom_max) { |
1058 | printf(" deselecting way!\n"); |
1059 | map_item_deselect(map->appdata); |
1060 | } |
1061 | } |
1062 | else if (map->selected.type == MAP_TYPE_NODE) { |
1063 | printf("will deselect node if zoomed below %f\n", |
1064 | map->selected.node->zoom_max); |
1065 | if (map->state->zoom < map->selected.node->zoom_max) { |
1066 | printf(" deselecting node!\n"); |
1067 | map_item_deselect(map->appdata); |
1068 | } |
1069 | } |
1070 | } |
1071 | |
1072 | void map_set_zoom(map_t *map, double zoom, |
1073 | gboolean update_scroll_offsets) { |
1074 | gboolean at_zoom_limit = 0; |
1075 | #ifdef USE_GOOCANVAS |
1076 | at_zoom_limit = map_limit_zoom(map, &zoom); |
1077 | #endif |
1078 | map->state->zoom = zoom; |
1079 | canvas_set_zoom(map->canvas, map->state->zoom); |
1080 | |
1081 | map_deselect_if_zoom_below_zoom_max(map); |
1082 | |
1083 | if (update_scroll_offsets) { |
1084 | if (!at_zoom_limit) { |
1085 | /* zooming affects the scroll offsets */ |
1086 | gint sx, sy; |
1087 | canvas_get_scroll_offsets(map->canvas, &sx, &sy); |
1088 | #ifdef USE_GOOCANVAS |
1089 | map_limit_scroll(map, &sx, &sy); |
1090 | canvas_scroll_to(map->canvas, sx, sy); // keep the map visible |
1091 | #endif |
1092 | map->state->scroll_offset.x = sx; |
1093 | map->state->scroll_offset.y = sy; |
1094 | } |
1095 | #ifdef USE_GOOCANVAS |
1096 | else { |
1097 | // map_scroll_towards_centre(map, 0.20); |
1098 | } |
1099 | #endif |
1100 | } |
1101 | } |
1102 | |
1103 | static gboolean map_scroll_event(GtkWidget *widget, GdkEventScroll *event, |
1104 | gpointer data) { |
1105 | appdata_t *appdata = (appdata_t*)data; |
1106 | |
1107 | if(!appdata->osm) return FALSE; |
1108 | |
1109 | if(event->type == GDK_SCROLL && appdata->map && appdata->map->state) { |
1110 | if(event->direction) |
1111 | map_set_zoom(appdata->map, |
1112 | appdata->map->state->zoom / ZOOM_FACTOR_WHEEL, TRUE); |
1113 | else |
1114 | map_set_zoom(appdata->map, |
1115 | appdata->map->state->zoom * ZOOM_FACTOR_WHEEL, TRUE); |
1116 | } |
1117 | |
1118 | return TRUE; |
1119 | } |
1120 | |
1121 | static gboolean distance_above(map_t *map, gint x, gint y, gint limit) { |
1122 | gint sx, sy; |
1123 | |
1124 | #ifdef USE_GNOMECANVAS |
1125 | gnome_canvas_get_scroll_offsets(GNOME_CANVAS(map->canvas), &sx, &sy); |
1126 | |
1127 | /* add offsets generated by mouse within map and map scrolling */ |
1128 | sx = (x-map->pen_down.at.x) + (map->pen_down.so.x-sx); |
1129 | sy = (y-map->pen_down.at.y) + (map->pen_down.so.y-sy); |
1130 | #else |
1131 | /* add offsets generated by mouse within map and map scrolling */ |
1132 | sx = (x-map->pen_down.at.x); |
1133 | sy = (y-map->pen_down.at.y); |
1134 | #endif |
1135 | |
1136 | return(sx*sx + sy*sy > limit*limit); |
1137 | } |
1138 | |
1139 | /* scroll with respect to two screen positions */ |
1140 | static void map_do_scroll(map_t *map, gint x, gint y) { |
1141 | gint sx, sy; |
1142 | |
1143 | canvas_get_scroll_offsets(map->canvas, &sx, &sy); |
1144 | sx -= x-map->pen_down.at.x; |
1145 | sy -= y-map->pen_down.at.y; |
1146 | #ifdef USE_GOOCANVAS |
1147 | map_limit_scroll(map, &sx, &sy); |
1148 | #endif |
1149 | canvas_scroll_to(map->canvas, sx, sy); |
1150 | map->state->scroll_offset.x = sx; |
1151 | map->state->scroll_offset.y = sy; |
1152 | } |
1153 | |
1154 | |
1155 | /* scroll a certain step */ |
1156 | static void map_do_scroll_step(map_t *map, gint x, gint y) { |
1157 | gint sx, sy; |
1158 | canvas_get_scroll_offsets(map->canvas, &sx, &sy); |
1159 | sx += x; |
1160 | sy += y; |
1161 | #ifdef USE_GOOCANVAS |
1162 | map_limit_scroll(map, &sx, &sy); |
1163 | #endif |
1164 | canvas_scroll_to(map->canvas, sx, sy); |
1165 | map->state->scroll_offset.x = sx; |
1166 | map->state->scroll_offset.y = sy; |
1167 | } |
1168 | |
1169 | |
1170 | gboolean map_item_is_selected_node(map_t *map, map_item_t *map_item) { |
1171 | printf("check if item is a selected node\n"); |
1172 | |
1173 | if(!map_item) { |
1174 | printf(" no item requested\n"); |
1175 | return FALSE; |
1176 | } |
1177 | |
1178 | if(map->selected.type == MAP_TYPE_ILLEGAL) { |
1179 | printf(" nothing is selected\n"); |
1180 | return FALSE; |
1181 | } |
1182 | |
1183 | /* clicked the highlight directly */ |
1184 | if(map_item->type != MAP_TYPE_NODE) { |
1185 | printf(" didn't click node\n"); |
1186 | return FALSE; |
1187 | } |
1188 | |
1189 | if(map->selected.type == MAP_TYPE_NODE) { |
1190 | printf(" selected item is a node\n"); |
1191 | |
1192 | if(map_item->node == map->selected.node) { |
1193 | printf(" requested item is a selected node\n"); |
1194 | return TRUE; |
1195 | } |
1196 | printf(" but it's not the requested one\n"); |
1197 | return FALSE; |
1198 | |
1199 | } else if(map->selected.type == MAP_TYPE_WAY) { |
1200 | printf(" selected item is a way\n"); |
1201 | |
1202 | node_chain_t *node_chain = map->selected.way->node_chain; |
1203 | while(node_chain) { |
1204 | if(node_chain->node == map_item->node) { |
1205 | printf(" requested item is part of selected way\n"); |
1206 | return TRUE; |
1207 | } |
1208 | node_chain = node_chain->next; |
1209 | } |
1210 | printf(" but it doesn't include the requested node\n"); |
1211 | return FALSE; |
1212 | |
1213 | } else { |
1214 | printf(" selected item is unknown\n"); |
1215 | return FALSE; |
1216 | } |
1217 | |
1218 | g_assert(0); |
1219 | return TRUE; |
1220 | } |
1221 | |
1222 | /* return true if the item given is the currenly selected way */ |
1223 | /* also return false if nothing is selected or the selection is no way */ |
1224 | gboolean map_item_is_selected_way(map_t *map, map_item_t *map_item) { |
1225 | printf("check if item is the selected way\n"); |
1226 | |
1227 | if(!map_item) { |
1228 | printf(" no item requested\n"); |
1229 | return FALSE; |
1230 | } |
1231 | |
1232 | if(map->selected.type == MAP_TYPE_ILLEGAL) { |
1233 | printf(" nothing is selected\n"); |
1234 | return FALSE; |
1235 | } |
1236 | |
1237 | /* clicked the highlight directly */ |
1238 | if(map_item->type != MAP_TYPE_WAY) { |
1239 | printf(" didn't click way\n"); |
1240 | return FALSE; |
1241 | } |
1242 | |
1243 | if(map->selected.type == MAP_TYPE_WAY) { |
1244 | printf(" selected item is a way\n"); |
1245 | |
1246 | if(map_item->way == map->selected.way) { |
1247 | printf(" requested item is a selected way\n"); |
1248 | return TRUE; |
1249 | } |
1250 | printf(" but it's not the requested one\n"); |
1251 | return FALSE; |
1252 | } |
1253 | |
1254 | printf(" selected item is not a way\n"); |
1255 | return FALSE; |
1256 | } |
1257 | |
1258 | |
1259 | void map_highlight_refresh(appdata_t *appdata) { |
1260 | map_t *map = appdata->map; |
1261 | map_item_t old = map->selected; |
1262 | |
1263 | printf("type to refresh is %d\n", old.type); |
1264 | if(old.type == MAP_TYPE_ILLEGAL) |
1265 | return; |
1266 | |
1267 | map_item_deselect(appdata); |
1268 | map_item_select(appdata, &old); |
1269 | } |
1270 | |
1271 | void map_way_delete(appdata_t *appdata, way_t *way) { |
1272 | printf("deleting way #%ld from map and osm\n", way->id); |
1273 | |
1274 | /* remove it visually from the screen */ |
1275 | map_item_chain_destroy(&way->map_item_chain); |
1276 | |
1277 | /* also remove the visible representation of all nodes (nodes with tags) */ |
1278 | node_chain_t *chain = way->node_chain; |
1279 | while(chain) { |
1280 | if(chain->node->map_item_chain) |
1281 | map_item_chain_destroy(&chain->node->map_item_chain); |
1282 | |
1283 | chain = chain->next; |
1284 | } |
1285 | |
1286 | /* and mark it "deleted" in the database */ |
1287 | osm_way_remove_from_relation(appdata->osm, way); |
1288 | osm_way_delete(appdata->osm, &appdata->icon, way, FALSE); |
1289 | } |
1290 | |
1291 | static void map_handle_click(appdata_t *appdata, map_t *map) { |
1292 | |
1293 | /* problem: on_item may be the highlight itself! So store it! */ |
1294 | map_item_t map_item; |
1295 | if(map->pen_down.on_item) map_item = *map->pen_down.on_item; |
1296 | else map_item.type = MAP_TYPE_ILLEGAL; |
1297 | |
1298 | /* if we aready have something selected, then de-select it */ |
1299 | map_item_deselect(appdata); |
1300 | |
1301 | /* select the clicked item (if there was one) */ |
1302 | if(map_item.type != MAP_TYPE_ILLEGAL) { |
1303 | switch(map_item.type) { |
1304 | case MAP_TYPE_NODE: |
1305 | map_node_select(appdata, map_item.node); |
1306 | break; |
1307 | |
1308 | case MAP_TYPE_WAY: |
1309 | map_way_select(appdata, map_item.way); |
1310 | break; |
1311 | |
1312 | default: |
1313 | g_assert((map_item.type == MAP_TYPE_NODE) || |
1314 | (map_item.type == MAP_TYPE_WAY)); |
1315 | break; |
1316 | } |
1317 | } |
1318 | } |
1319 | |
1320 | static void map_touchnode_update(appdata_t *appdata, gint x, gint y) { |
1321 | map_t *map = appdata->map; |
1322 | |
1323 | map_hl_touchnode_clear(map); |
1324 | |
1325 | node_t *cur_node = NULL; |
1326 | |
1327 | /* the "current node" which is the one we are working on and which */ |
1328 | /* should not be highlighted depends on the action */ |
1329 | switch(map->action.type) { |
1330 | |
1331 | /* in idle mode the dragged node is not highlighted */ |
1332 | case MAP_ACTION_IDLE: |
1333 | g_assert(map->pen_down.on_item); |
1334 | g_assert(map->pen_down.on_item->type == MAP_TYPE_NODE); |
1335 | cur_node = map->pen_down.on_item->node; |
1336 | break; |
1337 | |
1338 | default: |
1339 | break; |
1340 | } |
1341 | |
1342 | |
1343 | /* check if we are close to one of the other nodes */ |
1344 | canvas_window2world(appdata->map->canvas, x, y, &x, &y); |
1345 | node_t *node = appdata->osm->node; |
1346 | while(!map->touchnode && node) { |
1347 | /* don't highlight the dragged node itself and don't highlight */ |
1348 | /* deleted ones */ |
1349 | if((node != cur_node) && (!(node->flags & OSM_FLAG_DELETED))) { |
1350 | gint nx = x - node->lpos.x; |
1351 | gint ny = y - node->lpos.y; |
1352 | |
1353 | if((nx < map->style->node.radius) && (ny < map->style->node.radius) && |
1354 | (nx*nx + ny*ny < map->style->node.radius * map->style->node.radius)) |
1355 | map_hl_touchnode_draw(map, node); |
1356 | } |
1357 | node = node->next; |
1358 | } |
1359 | |
1360 | /* during way creation also nodes of the new way */ |
1361 | /* need to be searched */ |
1362 | if(!map->touchnode && map->action.way) { |
1363 | node_chain_t *chain = map->action.way->node_chain; |
1364 | while(!map->touchnode && chain && chain->next) { |
1365 | gint nx = x - chain->node->lpos.x; |
1366 | gint ny = y - chain->node->lpos.y; |
1367 | |
1368 | if((nx < map->style->node.radius) && (ny < map->style->node.radius) && |
1369 | (nx*nx + ny*ny < map->style->node.radius * map->style->node.radius)) |
1370 | map_hl_touchnode_draw(map, chain->node); |
1371 | |
1372 | chain = chain->next; |
1373 | } |
1374 | } |
1375 | } |
1376 | |
1377 | static void map_button_press(map_t *map, gint x, gint y) { |
1378 | |
1379 | printf("left button pressed\n"); |
1380 | map->pen_down.is = TRUE; |
1381 | |
1382 | /* save press position */ |
1383 | map->pen_down.at.x = x; |
1384 | map->pen_down.at.y = y; |
1385 | map->pen_down.drag = FALSE; // don't assume drag yet |
1386 | |
1387 | #ifdef USE_GNOMECANVAS |
1388 | /* save initial scroll offset */ |
1389 | gnome_canvas_get_scroll_offsets(GNOME_CANVAS(map->canvas), |
1390 | &map->pen_down.so.x, &map->pen_down.so.y); |
1391 | #endif |
1392 | |
1393 | /* determine wether this press was on an item */ |
1394 | map->pen_down.on_item = map_real_item_at(map, x, y); |
1395 | |
1396 | /* check if the clicked item is a highlighted node as the user */ |
1397 | /* might want to drag that */ |
1398 | map->pen_down.on_selected_node = FALSE; |
1399 | if(map->pen_down.on_item) |
1400 | map->pen_down.on_selected_node = |
1401 | map_item_is_selected_node(map, map->pen_down.on_item); |
1402 | |
1403 | /* button press */ |
1404 | switch(map->action.type) { |
1405 | |
1406 | case MAP_ACTION_WAY_NODE_ADD: |
1407 | map_edit_way_node_add_highlight(map, map->pen_down.on_item, x, y); |
1408 | break; |
1409 | |
1410 | case MAP_ACTION_WAY_CUT: |
1411 | map_edit_way_cut_highlight(map, map->pen_down.on_item, x, y); |
1412 | break; |
1413 | |
1414 | case MAP_ACTION_NODE_ADD: |
1415 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); |
1416 | break; |
1417 | |
1418 | case MAP_ACTION_WAY_ADD: |
1419 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); |
1420 | map_touchnode_update(map->appdata, x, y); |
1421 | break; |
1422 | |
1423 | default: |
1424 | break; |
1425 | } |
1426 | } |
1427 | |
1428 | /* move the background image (wms data) during wms adjustment */ |
1429 | static void map_bg_adjust(map_t *map, gint x, gint y) { |
1430 | g_assert(map->appdata); |
1431 | g_assert(map->appdata->osm); |
1432 | g_assert(map->appdata->osm->bounds); |
1433 | |
1434 | x += map->appdata->osm->bounds->min.x + map->bg.offset.x - |
1435 | map->pen_down.at.x; |
1436 | y += map->appdata->osm->bounds->min.y + map->bg.offset.y - |
1437 | map->pen_down.at.y; |
1438 | |
1439 | canvas_image_move(map->bg.item, x, y, map->bg.scale.x, map->bg.scale.y); |
1440 | } |
1441 | |
1442 | static void map_button_release(map_t *map, gint x, gint y) { |
1443 | map->pen_down.is = FALSE; |
1444 | |
1445 | /* before button release is handled */ |
1446 | switch(map->action.type) { |
1447 | case MAP_ACTION_BG_ADJUST: |
1448 | map_bg_adjust(map, x, y); |
1449 | map->bg.offset.x += x - map->pen_down.at.x; |
1450 | map->bg.offset.y += y - map->pen_down.at.y; |
1451 | break; |
1452 | |
1453 | case MAP_ACTION_IDLE: |
1454 | /* check if distance to press is above drag limit */ |
1455 | if(!map->pen_down.drag) |
1456 | map->pen_down.drag = distance_above(map, x, y, MAP_DRAG_LIMIT); |
1457 | |
1458 | if(!map->pen_down.drag) { |
1459 | printf("left button released after click\n"); |
1460 | |
1461 | map_item_t old_sel = map->selected; |
1462 | map_handle_click(map->appdata, map); |
1463 | |
1464 | if((old_sel.type != MAP_TYPE_ILLEGAL) && |
1465 | (old_sel.type == map->selected.type) && |
1466 | (old_sel.ptr == map->selected.ptr)) { |
1467 | printf("re-selected same item of type %d, " |
1468 | "pushing it to the bottom\n", old_sel.type); |
1469 | |
1470 | if(!map->selected.item) { |
1471 | printf(" item has no visible representation to push\n"); |
1472 | } else { |
1473 | canvas_item_to_bottom(map->selected.item); |
1474 | |
1475 | /* update clicked item, to correctly handle the click */ |
1476 | map->pen_down.on_item = |
1477 | map_real_item_at(map, map->pen_down.at.x, map->pen_down.at.y); |
1478 | |
1479 | map_handle_click(map->appdata, map); |
1480 | } |
1481 | } |
1482 | } else { |
1483 | printf("left button released after drag\n"); |
1484 | |
1485 | /* just scroll if we didn't drag an selected item */ |
1486 | if(!map->pen_down.on_selected_node) |
1487 | map_do_scroll(map, x, y); |
1488 | else { |
1489 | printf("released after dragging node\n"); |
1490 | map_hl_cursor_clear(map); |
1491 | |
1492 | /* now actually move the node */ |
1493 | map_edit_node_move(map->appdata, map->pen_down.on_item, x, y); |
1494 | } |
1495 | } |
1496 | break; |
1497 | |
1498 | case MAP_ACTION_NODE_ADD: |
1499 | printf("released after NODE ADD\n"); |
1500 | map_hl_cursor_clear(map); |
1501 | |
1502 | /* convert mouse position to canvas (world) position */ |
1503 | canvas_window2world(map->canvas, x, y, &x, &y); |
1504 | |
1505 | node_t *node = NULL; |
1506 | if(!osm_position_within_bounds(map->appdata->osm, x, y)) |
1507 | map_outside_error(map->appdata); |
1508 | else { |
1509 | node = osm_node_new(map->appdata->osm, x, y); |
1510 | osm_node_attach(map->appdata->osm, node); |
1511 | map_node_draw(map, node); |
1512 | } |
1513 | map_action_set(map->appdata, MAP_ACTION_IDLE); |
1514 | |
1515 | map_item_deselect(map->appdata); |
1516 | |
1517 | if(node) { |
1518 | map_node_select(map->appdata, node); |
1519 | |
1520 | /* let the user specify some tags for the new node */ |
1521 | info_dialog(GTK_WIDGET(map->appdata->window), map->appdata, NULL); |
1522 | } |
1523 | break; |
1524 | |
1525 | case MAP_ACTION_WAY_ADD: |
1526 | printf("released after WAY ADD\n"); |
1527 | map_hl_cursor_clear(map); |
1528 | |
1529 | map_edit_way_add_segment(map, x, y); |
1530 | break; |
1531 | |
1532 | case MAP_ACTION_WAY_NODE_ADD: |
1533 | printf("released after WAY NODE ADD\n"); |
1534 | map_hl_cursor_clear(map); |
1535 | |
1536 | map_edit_way_node_add(map, x, y); |
1537 | break; |
1538 | |
1539 | case MAP_ACTION_WAY_CUT: |
1540 | printf("released after WAY CUT\n"); |
1541 | map_hl_cursor_clear(map); |
1542 | |
1543 | map_edit_way_cut(map, x, y); |
1544 | break; |
1545 | |
1546 | |
1547 | default: |
1548 | break; |
1549 | } |
1550 | } |
1551 | |
1552 | static gboolean map_button_event(GtkWidget *widget, GdkEventButton *event, |
1553 | gpointer data) { |
1554 | appdata_t *appdata = (appdata_t*)data; |
1555 | map_t *map = appdata->map; |
1556 | |
1557 | if(!appdata->osm) return FALSE; |
1558 | |
1559 | if(event->button == 1) { |
1560 | gint x = event->x, y = event->y; |
1561 | |
1562 | if(event->type == GDK_BUTTON_PRESS) |
1563 | map_button_press(map, x, y); |
1564 | |
1565 | if(event->type == GDK_BUTTON_RELEASE) |
1566 | map_button_release(map, x, y); |
1567 | } |
1568 | |
1569 | return FALSE; /* forward to further processing */ |
1570 | } |
1571 | |
1572 | static gboolean map_motion_notify_event(GtkWidget *widget, |
1573 | GdkEventMotion *event, gpointer data) { |
1574 | appdata_t *appdata = (appdata_t*)data; |
1575 | map_t *map = appdata->map; |
1576 | gint x, y; |
1577 | GdkModifierType state; |
1578 | |
1579 | if(!appdata->osm) return FALSE; |
1580 | |
1581 | #ifdef USE_HILDON |
1582 | /* reduce update frequency on hildon to keep screen update fluid */ |
1583 | static guint32 last_time = 0; |
1584 | |
1585 | if(event->time - last_time < 100) return FALSE; |
1586 | last_time = event->time; |
1587 | #endif |
1588 | |
1589 | if(!map->pen_down.is) |
1590 | return FALSE; |
1591 | |
1592 | #ifdef USE_GNOMECANVAS |
1593 | /* handle hints, hints are handled by goocanvas directly */ |
1594 | if(event->is_hint) |
1595 | gdk_window_get_pointer(event->window, &x, &y, &state); |
1596 | else |
1597 | #endif |
1598 | { |
1599 | x = event->x; |
1600 | y = event->y; |
1601 | state = event->state; |
1602 | } |
1603 | |
1604 | /* check if distance to press is above drag limit */ |
1605 | if(!map->pen_down.drag) |
1606 | map->pen_down.drag = distance_above(map, x, y, MAP_DRAG_LIMIT); |
1607 | |
1608 | /* drag */ |
1609 | switch(map->action.type) { |
1610 | case MAP_ACTION_BG_ADJUST: |
1611 | map_bg_adjust(map, x, y); |
1612 | break; |
1613 | |
1614 | case MAP_ACTION_IDLE: |
1615 | if(map->pen_down.drag) { |
1616 | /* just scroll if we didn't drag an selected item */ |
1617 | if(!map->pen_down.on_selected_node) |
1618 | map_do_scroll(map, x, y); |
1619 | else { |
1620 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); |
1621 | map_touchnode_update(appdata, x, y); |
1622 | } |
1623 | } |
1624 | break; |
1625 | |
1626 | case MAP_ACTION_NODE_ADD: |
1627 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); |
1628 | break; |
1629 | |
1630 | case MAP_ACTION_WAY_ADD: |
1631 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); |
1632 | map_touchnode_update(appdata, x, y); |
1633 | break; |
1634 | |
1635 | case MAP_ACTION_WAY_NODE_ADD: |
1636 | map_hl_cursor_clear(map); |
1637 | map_item_t *item = map_real_item_at(map, x, y); |
1638 | if(item) map_edit_way_node_add_highlight(map, item, x, y); |
1639 | break; |
1640 | |
1641 | case MAP_ACTION_WAY_CUT: |
1642 | map_hl_cursor_clear(map); |
1643 | item = map_real_item_at(map, x, y); |
1644 | if(item) map_edit_way_cut_highlight(map, item, x, y); |
1645 | break; |
1646 | |
1647 | default: |
1648 | break; |
1649 | } |
1650 | |
1651 | |
1652 | return FALSE; /* forward to further processing */ |
1653 | } |
1654 | |
1655 | gboolean map_key_press_event(appdata_t *appdata, GdkEventKey *event) { |
1656 | |
1657 | if(!appdata->osm) return FALSE; |
1658 | |
1659 | /* map needs to be there to handle buttons */ |
1660 | if(!appdata->map->canvas) |
1661 | return FALSE; |
1662 | |
1663 | if(event->type == GDK_KEY_PRESS) { |
1664 | gdouble zoom = 0; |
1665 | switch(event->keyval) { |
1666 | |
1667 | case GDK_Left: |
1668 | map_do_scroll_step(appdata->map, -50, 0); |
1669 | break; |
1670 | |
1671 | case GDK_Right: |
1672 | map_do_scroll_step(appdata->map, +50, 0); |
1673 | break; |
1674 | |
1675 | case GDK_Up: |
1676 | map_do_scroll_step(appdata->map, 0, -50); |
1677 | break; |
1678 | |
1679 | case GDK_Down: |
1680 | map_do_scroll_step(appdata->map, 0, +50); |
1681 | break; |
1682 | |
1683 | case GDK_Return: // same as HILDON_HARDKEY_SELECT |
1684 | /* if the ok button is enabled, call its function */ |
1685 | if(GTK_WIDGET_FLAGS(appdata->iconbar->ok) & GTK_SENSITIVE) |
1686 | map_action_ok(appdata); |
1687 | /* otherwise if info is enabled call that */ |
1688 | else if(GTK_WIDGET_FLAGS(appdata->iconbar->info) & GTK_SENSITIVE) |
1689 | info_dialog(GTK_WIDGET(appdata->window), appdata, NULL); |
1690 | break; |
1691 | |
1692 | case GDK_Escape: // same as HILDON_HARDKEY_ESC |
1693 | /* if the cancel button is enabled, call its function */ |
1694 | if(GTK_WIDGET_FLAGS(appdata->iconbar->cancel) & GTK_SENSITIVE) |
1695 | map_action_cancel(appdata); |
1696 | break; |
1697 | |
1698 | #ifdef USE_HILDON |
1699 | case HILDON_HARDKEY_INCREASE: |
1700 | #else |
1701 | case '+': |
1702 | #endif |
1703 | zoom = appdata->map->state->zoom; |
1704 | zoom *= ZOOM_FACTOR_BUTTON; |
1705 | map_set_zoom(appdata->map, zoom, TRUE); |
1706 | printf("zoom is now %f (1:%d)\n", zoom, (int)zoom_to_scaledn(zoom)); |
1707 | return TRUE; |
1708 | break; |
1709 | |
1710 | #ifdef USE_HILDON |
1711 | case HILDON_HARDKEY_DECREASE: |
1712 | #else |
1713 | case '-': |
1714 | #endif |
1715 | zoom = appdata->map->state->zoom; |
1716 | zoom /= ZOOM_FACTOR_BUTTON; |
1717 | map_set_zoom(appdata->map, zoom, TRUE); |
1718 | printf("zoom is now %f (1:%d)\n", zoom, (int)zoom_to_scaledn(zoom)); |
1719 | return TRUE; |
1720 | break; |
1721 | |
1722 | default: |
1723 | printf("key event %d\n", event->keyval); |
1724 | break; |
1725 | } |
1726 | } |
1727 | return FALSE; |
1728 | } |
1729 | |
1730 | GtkWidget *map_new(appdata_t *appdata) { |
1731 | map_t *map = appdata->map = g_new0(map_t, 1); |
1732 | |
1733 | map->style = style_load(appdata, appdata->settings->style); |
1734 | if(!map->style) { |
1735 | errorf(NULL, _("Unable to load valid style, terminating.")); |
1736 | g_free(map); |
1737 | return NULL; |
1738 | } |
1739 | |
1740 | if(appdata->project && appdata->project->map_state) { |
1741 | printf("Using projects map state\n"); |
1742 | map->state = appdata->project->map_state; |
1743 | } else { |
1744 | printf("Creating new map state\n"); |
1745 | map->state = g_new0(map_state_t, 1); |
1746 | map->state->zoom = 0.25; |
1747 | } |
1748 | |
1749 | map->state->refcount++; |
1750 | |
1751 | map->pen_down.at.x = -1; |
1752 | map->pen_down.at.y = -1; |
1753 | map->appdata = appdata; |
1754 | map->action.type = MAP_ACTION_IDLE; |
1755 | |
1756 | #ifdef USE_GNOMECANVAS |
1757 | map->canvas = gnome_canvas_new_aa(); // _aa |
1758 | |
1759 | /* create the groups */ |
1760 | canvas_group_t group; |
1761 | for(group = 0; group < CANVAS_GROUPS; group++) |
1762 | map->group[group] = gnome_canvas_item_new( |
1763 | gnome_canvas_root(GNOME_CANVAS(map->canvas)), |
1764 | GNOME_TYPE_CANVAS_GROUP, |
1765 | NULL); |
1766 | |
1767 | gtk_widget_modify_bg(map->canvas, GTK_STATE_NORMAL, |
1768 | &map->canvas->style->white); |
1769 | |
1770 | #else |
1771 | map->canvas = goo_canvas_new(); |
1772 | |
1773 | g_object_set(G_OBJECT(map->canvas), "anchor", GTK_ANCHOR_CENTER, NULL); |
1774 | g_object_set(G_OBJECT(map->canvas), "background-color-rgb", |
1775 | map->style->background.color, NULL); |
1776 | |
1777 | GooCanvasItem *root = goo_canvas_get_root_item(GOO_CANVAS(map->canvas)); |
1778 | |
1779 | /* create the groups */ |
1780 | canvas_group_t group; |
1781 | for(group = 0; group < CANVAS_GROUPS; group++) |
1782 | map->group[group] = goo_canvas_group_new(root, NULL); |
1783 | |
1784 | #endif |
1785 | |
1786 | gtk_widget_set_events(map->canvas, |
1787 | GDK_BUTTON_PRESS_MASK |
1788 | | GDK_BUTTON_RELEASE_MASK |
1789 | | GDK_SCROLL_MASK |
1790 | | GDK_POINTER_MOTION_MASK |
1791 | | GDK_POINTER_MOTION_HINT_MASK); |
1792 | |
1793 | gtk_signal_connect(GTK_OBJECT(map->canvas), |
1794 | "button_press_event", G_CALLBACK(map_button_event), appdata); |
1795 | gtk_signal_connect(GTK_OBJECT(map->canvas), |
1796 | "button_release_event", G_CALLBACK(map_button_event), appdata); |
1797 | gtk_signal_connect(GTK_OBJECT(map->canvas), |
1798 | "motion_notify_event", G_CALLBACK(map_motion_notify_event), appdata); |
1799 | gtk_signal_connect(GTK_OBJECT(map->canvas), |
1800 | "scroll_event", G_CALLBACK(map_scroll_event), appdata); |
1801 | |
1802 | gtk_signal_connect(GTK_OBJECT(map->canvas), |
1803 | "destroy", G_CALLBACK(map_destroy_event), appdata); |
1804 | |
1805 | return map->canvas; |
1806 | } |
1807 | |
1808 | void map_init(appdata_t *appdata) { |
1809 | map_t *map = appdata->map; |
1810 | |
1811 | /* set initial zoom */ |
1812 | map_set_zoom(map, map->state->zoom, FALSE); |
1813 | josm_elemstyles_colorize_world(map->style, appdata->osm); |
1814 | |
1815 | map_draw(map, appdata->osm); |
1816 | |
1817 | float mult = appdata->map->style->frisket.mult; |
1818 | canvas_set_bounds(map->canvas, |
1819 | mult*appdata->osm->bounds->min.x, |
1820 | mult*appdata->osm->bounds->min.y, |
1821 | mult*appdata->osm->bounds->max.x, |
1822 | mult*appdata->osm->bounds->max.y); |
1823 | |
1824 | printf("restore scroll offsets %d/%d\n", |
1825 | map->state->scroll_offset.x, map->state->scroll_offset.y); |
1826 | |
1827 | canvas_scroll_to(map->canvas, |
1828 | map->state->scroll_offset.x, map->state->scroll_offset.y); |
1829 | } |
1830 | |
1831 | |
1832 | void map_item_set_flags(map_item_t *map_item, int set, int clr) { |
1833 | |
1834 | switch(map_item->type) { |
1835 | case MAP_TYPE_NODE: |
1836 | map_item->node->flags |= set; |
1837 | map_item->node->flags &= ~clr; |
1838 | break; |
1839 | |
1840 | case MAP_TYPE_WAY: |
1841 | map_item->way->flags |= set; |
1842 | map_item->way->flags &= ~clr; |
1843 | break; |
1844 | |
1845 | default: |
1846 | g_assert(0); |
1847 | break; |
1848 | } |
1849 | } |
1850 | |
1851 | void map_clear(appdata_t *appdata, gint layer_mask) { |
1852 | map_t *map = appdata->map; |
1853 | |
1854 | printf("freeing map contents\n"); |
1855 | |
1856 | map_free_map_item_chains(appdata); |
1857 | |
1858 | /* remove a possibly existing highlight */ |
1859 | map_item_deselect(appdata); |
1860 | |
1861 | canvas_group_t group; |
1862 | for(group=0;group<CANVAS_GROUPS;group++) { |
1863 | |
1864 | #ifdef USE_GNOMECANVAS |
1865 | /* destroy the entire group */ |
1866 | canvas_item_destroy(map->group[group]); |
1867 | |
1868 | /* and create an empty new one */ |
1869 | map->group[group] = gnome_canvas_item_new( |
1870 | gnome_canvas_root(GNOME_CANVAS(map->canvas)), |
1871 | GNOME_TYPE_CANVAS_GROUP, |
1872 | NULL); |
1873 | #else |
1874 | if(layer_mask & (1<<group)) { |
1875 | gint children = goo_canvas_item_get_n_children(map->group[group]); |
1876 | printf("Removing %d children from layer %d\n", children, group); |
1877 | while(children--) |
1878 | goo_canvas_item_remove_child(map->group[group], children); |
1879 | } |
1880 | #endif |
1881 | } |
1882 | } |
1883 | |
1884 | void map_paint(appdata_t *appdata) { |
1885 | map_t *map = appdata->map; |
1886 | |
1887 | josm_elemstyles_colorize_world(map->style, appdata->osm); |
1888 | map_draw(map, appdata->osm); |
1889 | } |
1890 | |
1891 | /* called from several icons like e.g. "node_add" */ |
1892 | void map_action_set(appdata_t *appdata, map_action_t action) { |
1893 | printf("map action set to %d\n", action); |
1894 | |
1895 | appdata->map->action.type = action; |
1896 | |
1897 | /* enable/disable ok/cancel buttons */ |
1898 | // MAP_ACTION_IDLE=0, NODE_ADD, BG_ADJUST, WAY_ADD, WAY_NODE_ADD, WAY_CUT |
1899 | const gboolean ok_state[] = { FALSE, FALSE, TRUE, FALSE, FALSE, FALSE }; |
1900 | const gboolean cancel_state[] = { FALSE, TRUE, TRUE, TRUE, TRUE, TRUE }; |
1901 | |
1902 | g_assert(MAP_ACTION_NUM == sizeof(ok_state)/sizeof(gboolean)); |
1903 | g_assert(action < sizeof(ok_state)/sizeof(gboolean)); |
1904 | |
1905 | icon_bar_map_cancel_ok(appdata, cancel_state[action], ok_state[action]); |
1906 | |
1907 | switch(action) { |
1908 | case MAP_ACTION_BG_ADJUST: |
1909 | /* an existing selection only causes confusion ... */ |
1910 | map_item_deselect(appdata); |
1911 | break; |
1912 | |
1913 | case MAP_ACTION_WAY_ADD: |
1914 | printf("starting new way\n"); |
1915 | |
1916 | /* remember if there was a way selected */ |
1917 | way_t *way_sel = NULL; |
1918 | if(appdata->map->selected.type == MAP_TYPE_WAY) |
1919 | way_sel = appdata->map->selected.way; |
1920 | |
1921 | map_item_deselect(appdata); |
1922 | map_edit_way_add_begin(appdata->map, way_sel); |
1923 | break; |
1924 | |
1925 | case MAP_ACTION_NODE_ADD: |
1926 | map_item_deselect(appdata); |
1927 | break; |
1928 | |
1929 | default: |
1930 | break; |
1931 | } |
1932 | |
1933 | icon_bar_map_action_idle(appdata, action == MAP_ACTION_IDLE); |
1934 | gtk_widget_set_sensitive(appdata->menu_item_wms_adjust, |
1935 | action == MAP_ACTION_IDLE); |
1936 | |
1937 | const char *str_state[] = { |
1938 | NULL, |
1939 | _("Place a node"), |
1940 | _("Adjust background image position"), |
1941 | _("Place first node of new way"), |
1942 | _("Place node on selected way"), |
1943 | _("Select segment to cut way"), |
1944 | }; |
1945 | |
1946 | g_assert(MAP_ACTION_NUM == sizeof(str_state)/sizeof(char*)); |
1947 | |
1948 | statusbar_set(appdata, str_state[action], FALSE); |
1949 | } |
1950 | |
1951 | |
1952 | void map_action_cancel(appdata_t *appdata) { |
1953 | map_t *map = appdata->map; |
1954 | |
1955 | switch(map->action.type) { |
1956 | case MAP_ACTION_WAY_ADD: |
1957 | map_edit_way_add_cancel(map); |
1958 | break; |
1959 | |
1960 | case MAP_ACTION_BG_ADJUST: |
1961 | /* undo all changes to bg_offset */ |
1962 | map->bg.offset.x = appdata->project->wms_offset.x; |
1963 | map->bg.offset.y = appdata->project->wms_offset.y; |
1964 | |
1965 | gint x = appdata->osm->bounds->min.x + map->bg.offset.x; |
1966 | gint y = appdata->osm->bounds->min.y + map->bg.offset.y; |
1967 | canvas_image_move(map->bg.item, x, y, map->bg.scale.x, map->bg.scale.y); |
1968 | break; |
1969 | |
1970 | default: |
1971 | break; |
1972 | } |
1973 | |
1974 | map_action_set(appdata, MAP_ACTION_IDLE); |
1975 | } |
1976 | |
1977 | void map_action_ok(appdata_t *appdata) { |
1978 | map_t *map = appdata->map; |
1979 | |
1980 | /* reset action now as this erases the statusbar and some */ |
1981 | /* of the actions may set it */ |
1982 | map_action_t type = map->action.type; |
1983 | map_action_set(appdata, MAP_ACTION_IDLE); |
1984 | |
1985 | switch(type) { |
1986 | case MAP_ACTION_WAY_ADD: |
1987 | map_edit_way_add_ok(map); |
1988 | break; |
1989 | |
1990 | case MAP_ACTION_BG_ADJUST: |
1991 | /* save changes to bg_offset in project */ |
1992 | appdata->project->wms_offset.x = map->bg.offset.x; |
1993 | appdata->project->wms_offset.y = map->bg.offset.y; |
1994 | appdata->project->dirty = TRUE; |
1995 | break; |
1996 | |
1997 | default: |
1998 | break; |
1999 | } |
2000 | } |
2001 | |
2002 | /* called from icon "trash" */ |
2003 | void map_delete_selected(appdata_t *appdata) { |
2004 | map_t *map = appdata->map; |
2005 | |
2006 | if(!yes_no_f(GTK_WIDGET(appdata->window), |
2007 | appdata, MISC_AGAIN_ID_DELETE, MISC_AGAIN_FLAG_DONT_SAVE_NO, |
2008 | _("Delete selected object?"), |
2009 | _("Do you really want to delete the selected object?"))) |
2010 | return; |
2011 | |
2012 | /* work on local copy since de-selecting destroys the selection */ |
2013 | map_item_t item = map->selected; |
2014 | |
2015 | /* deleting the selected item de-selects it ... */ |
2016 | map_item_deselect(appdata); |
2017 | |
2018 | switch(item.type) { |
2019 | case MAP_TYPE_NODE: |
2020 | printf("request to delete node #%ld\n", item.node->id); |
2021 | |
2022 | /* check if this node is part of a way with two nodes only. */ |
2023 | /* we cannot delete this as this would also delete the way */ |
2024 | way_chain_t *way_chain = osm_node_to_way(appdata->osm, item.node); |
2025 | if(way_chain) { |
2026 | gboolean short_way = FALSE; |
2027 | |
2028 | /* free the chain of ways */ |
2029 | while(way_chain && !short_way) { |
2030 | way_chain_t *next = way_chain->next; |
2031 | |
2032 | if(osm_way_number_of_nodes(way_chain->way) <= 2) |
2033 | short_way = TRUE; |
2034 | |
2035 | g_free(way_chain); |
2036 | way_chain = next; |
2037 | } |
2038 | |
2039 | if(short_way) { |
2040 | if(!yes_no_f(GTK_WIDGET(appdata->window), NULL, 0, 0, |
2041 | _("Delete node in short way(s)?"), |
2042 | _("Deleting this node will also delete one or more ways " |
2043 | "since they'll contain only one node afterwards. " |
2044 | "Do you really want this?"))) |
2045 | return; |
2046 | } |
2047 | } |
2048 | |
2049 | /* remove it visually from the screen */ |
2050 | map_item_chain_destroy(&item.node->map_item_chain); |
2051 | |
2052 | /* and mark it "deleted" in the database */ |
2053 | osm_node_remove_from_relation(appdata->osm, item.node); |
2054 | way_chain_t *chain = osm_node_delete(appdata->osm, |
2055 | &appdata->icon, item.node, FALSE, TRUE); |
2056 | |
2057 | /* redraw all affected ways */ |
2058 | while(chain) { |
2059 | way_chain_t *next = chain->next; |
2060 | |
2061 | if(osm_way_number_of_nodes(chain->way) == 1) { |
2062 | /* this way now only contains one node and thus isn't a valid */ |
2063 | /* way anymore. So it'll also get deleted (which in turn may */ |
2064 | /* cause other nodes to be deleted as well) */ |
2065 | map_way_delete(appdata, chain->way); |
2066 | } else { |
2067 | map_item_t item; |
2068 | item.type = MAP_TYPE_WAY; |
2069 | item.way = chain->way; |
2070 | map_item_redraw(appdata, &item); |
2071 | } |
2072 | |
2073 | g_free(chain); |
2074 | |
2075 | chain = next; |
2076 | } |
2077 | |
2078 | break; |
2079 | |
2080 | case MAP_TYPE_WAY: |
2081 | printf("request to delete way #%ld\n", item.way->id); |
2082 | map_way_delete(appdata, item.way); |
2083 | break; |
2084 | |
2085 | default: |
2086 | g_assert((item.type == MAP_TYPE_NODE) || |
2087 | (item.type == MAP_TYPE_WAY)); |
2088 | break; |
2089 | } |
2090 | } |
2091 | |
2092 | /* ----------------------- track related stuff ----------------------- */ |
2093 | |
2094 | void map_track_draw_seg(map_t *map, track_seg_t *seg) { |
2095 | /* a track_seg needs at least 2 points to be drawn */ |
2096 | guint pnum = track_seg_points(seg); |
2097 | printf("seg of length %d\n", pnum); |
2098 | |
2099 | if(pnum == 1) { |
2100 | g_assert(!seg->item); |
2101 | |
2102 | seg->item = canvas_circle_new(map, CANVAS_GROUP_TRACK, |
2103 | seg->track_point->lpos.x, seg->track_point->lpos.y, |
2104 | map->style->track.width/2.0, 0, map->style->track.color, NO_COLOR); |
2105 | } |
2106 | |
2107 | if(pnum > 1) { |
2108 | |
2109 | /* allocate space for nodes */ |
2110 | canvas_points_t *points = canvas_points_new(pnum); |
2111 | |
2112 | int point = 0; |
2113 | track_point_t *track_point = seg->track_point; |
2114 | while(track_point) { |
2115 | points->coords[point++] = track_point->lpos.x; |
2116 | points->coords[point++] = track_point->lpos.y; |
2117 | track_point = track_point->next; |
2118 | } |
2119 | |
2120 | /* there may be a circle (one point line) */ |
2121 | if(seg->item) |
2122 | canvas_item_destroy(seg->item); |
2123 | |
2124 | seg->item = canvas_polyline_new(map, CANVAS_GROUP_TRACK, |
2125 | points, map->style->track.width, map->style->track.color); |
2126 | |
2127 | canvas_points_free(points); |
2128 | } |
2129 | } |
2130 | |
2131 | void map_track_update_seg(map_t *map, track_seg_t *seg) { |
2132 | /* a track_seg needs at least 2 points to be drawn */ |
2133 | guint pnum = track_seg_points(seg); |
2134 | printf("seg of length %d\n", pnum); |
2135 | |
2136 | if(pnum > 1) { |
2137 | |
2138 | /* allocate space for nodes */ |
2139 | canvas_points_t *points = canvas_points_new(pnum); |
2140 | |
2141 | int point = 0; |
2142 | track_point_t *track_point = seg->track_point; |
2143 | while(track_point) { |
2144 | canvas_point_set_pos(points, point++, &track_point->lpos); |
2145 | track_point = track_point->next; |
2146 | } |
2147 | |
2148 | g_assert(seg->item); |
2149 | canvas_item_set_points(seg->item, points); |
2150 | canvas_points_free(points); |
2151 | } |
2152 | } |
2153 | |
2154 | void map_track_draw(map_t *map, track_t *track) { |
2155 | track_seg_t *seg = track->track_seg; |
2156 | |
2157 | /* draw all segments */ |
2158 | while(seg) { |
2159 | map_track_draw_seg(map, seg); |
2160 | seg = seg->next; |
2161 | } |
2162 | } |
2163 | |
2164 | void map_track_remove(appdata_t *appdata) { |
2165 | track_t *track = appdata->track.track; |
2166 | |
2167 | printf("removing track\n"); |
2168 | |
2169 | g_assert(track); |
2170 | |
2171 | /* remove all segments */ |
2172 | track_seg_t *seg = track->track_seg; |
2173 | while(seg) { |
2174 | if(seg->item) { |
2175 | canvas_item_destroy(seg->item); |
2176 | seg->item = NULL; |
2177 | } |
2178 | |
2179 | seg = seg->next; |
2180 | } |
2181 | } |
2182 | |
2183 | void map_track_pos(appdata_t *appdata, lpos_t *lpos) { |
2184 | if(appdata->track.gps_item) { |
2185 | canvas_item_destroy(appdata->track.gps_item); |
2186 | appdata->track.gps_item = NULL; |
2187 | } |
2188 | |
2189 | if(lpos) |
2190 | appdata->track.gps_item = canvas_circle_new(appdata->map, CANVAS_GROUP_GPS, |
2191 | lpos->x, lpos->y, appdata->map->style->track.width/2.0, 0, |
2192 | appdata->map->style->track.gps_color, NO_COLOR); |
2193 | } |
2194 | |
2195 | /* ------------------- map background ------------------ */ |
2196 | |
2197 | void map_remove_bg_image(map_t *map) { |
2198 | if(!map) return; |
2199 | |
2200 | if(map->bg.item) { |
2201 | canvas_item_destroy(map->bg.item); |
2202 | map->bg.item = NULL; |
2203 | } |
2204 | } |
2205 | |
2206 | static gint map_bg_item_destroy_event(GtkWidget *widget, gpointer data) { |
2207 | map_t *map = (map_t*)data; |
2208 | |
2209 | /* destroying background item */ |
2210 | |
2211 | map->bg.item = NULL; |
2212 | if(map->bg.pix) { |
2213 | printf("destroying background item\n"); |
2214 | gdk_pixbuf_unref(map->bg.pix); |
2215 | map->bg.pix = NULL; |
2216 | } |
2217 | return FALSE; |
2218 | } |
2219 | |
2220 | void map_set_bg_image(map_t *map, char *filename) { |
2221 | bounds_t *bounds = map->appdata->osm->bounds; |
2222 | |
2223 | map_remove_bg_image(map); |
2224 | |
2225 | map->bg.pix = gdk_pixbuf_new_from_file(filename, NULL); |
2226 | |
2227 | /* calculate required scale factor */ |
2228 | map->bg.scale.x = (float)(bounds->max.x - bounds->min.x)/ |
2229 | (float)gdk_pixbuf_get_width(map->bg.pix); |
2230 | map->bg.scale.y = (float)(bounds->max.y - bounds->min.y)/ |
2231 | (float)gdk_pixbuf_get_height(map->bg.pix); |
2232 | |
2233 | map->bg.item = canvas_image_new(map, CANVAS_GROUP_BG, map->bg.pix, |
2234 | bounds->min.x, bounds->min.y, map->bg.scale.x, map->bg.scale.y); |
2235 | |
2236 | canvas_item_destroy_connect(map->bg.item, |
2237 | G_CALLBACK(map_bg_item_destroy_event), map); |
2238 | } |
2239 | |
2240 | |
2241 | /* -------- hide and show objects (for performance reasons) ------- */ |
2242 | |
2243 | void map_hide_selected(appdata_t *appdata) { |
2244 | map_t *map = appdata->map; |
2245 | if(!map) return; |
2246 | |
2247 | if(map->selected.type != MAP_TYPE_WAY) { |
2248 | printf("selected item is not a way\n"); |
2249 | return; |
2250 | } |
2251 | |
2252 | way_t *way = map->selected.way; |
2253 | printf("hiding way #%ld\n", way->id); |
2254 | |
2255 | map_item_deselect(appdata); |
2256 | way->flags |= OSM_FLAG_HIDDEN; |
2257 | map_item_chain_destroy(&way->map_item_chain); |
2258 | |
2259 | gtk_widget_set_sensitive(appdata->menu_item_map_show_all, TRUE); |
2260 | } |
2261 | |
2262 | void map_show_all(appdata_t *appdata) { |
2263 | map_t *map = appdata->map; |
2264 | if(!map) return; |
2265 | |
2266 | way_t *way = appdata->osm->way; |
2267 | while(way) { |
2268 | if(way->flags & OSM_FLAG_HIDDEN) { |
2269 | way->flags &= ~OSM_FLAG_HIDDEN; |
2270 | map_way_draw(map, way); |
2271 | } |
2272 | |
2273 | way = way->next; |
2274 | } |
2275 | |
2276 | gtk_widget_set_sensitive(appdata->menu_item_map_show_all, FALSE); |
2277 | } |
2278 | // vim:et:ts=8:sw=2:sts=2:ai |