Parent Directory | Revision Log
Canvas code cleanups
1 | harbaum | 1 | /* |
2 | * Copyright (C) 2008 Till Harbaum <till@harbaum.org>. | ||
3 | * | ||
4 | * This file is part of OSM2Go. | ||
5 | * | ||
6 | * OSM2Go is free software: you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation, either version 3 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * OSM2Go is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | * GNU General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License | ||
17 | * along with OSM2Go. If not, see <http://www.gnu.org/licenses/>. | ||
18 | */ | ||
19 | |||
20 | #include "appdata.h" | ||
21 | |||
22 | #include <gdk/gdkkeysyms.h> | ||
23 | |||
24 | |||
25 | #undef DESTROY_WAIT_FOR_GTK | ||
26 | |||
27 | static void map_statusbar(map_t *map, map_item_t *map_item) { | ||
28 | char *item_str = NULL; | ||
29 | item_id_t id = ID_ILLEGAL; | ||
30 | tag_t *tag = NULL; | ||
31 | char *str = NULL; | ||
32 | |||
33 | 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 | achadwick | 28 | /* |
60 | * XXX Should we just try to present only the name or the ref (or the | ||
61 | * alt_name, old_name, whatever) here? Hurling a load of tags in the | ||
62 | * user's face in some unpredictable, uninformative order isn't very | ||
63 | * friendly. | ||
64 | * | ||
65 | * Actually, a tag_short_desc() function would be useful in dialogs | ||
66 | * nd user messages too. | ||
67 | */ | ||
68 | harbaum | 1 | while(tag) { |
69 | if(!collision && info_tag_key_collision(tags, tag)) | ||
70 | collision = TRUE; | ||
71 | |||
72 | /* we don't have much space, so ignore created_by tag */ | ||
73 | if(!osm_is_creator_tag(tag)) { | ||
74 | char *old = str; | ||
75 | str = g_strdup_printf("%s, %s=%s", old, tag->key, tag->value); | ||
76 | g_free(old); | ||
77 | } | ||
78 | tag = tag->next; | ||
79 | } | ||
80 | } | ||
81 | |||
82 | statusbar_set(map->appdata, str, collision); | ||
83 | g_free(str); | ||
84 | } | ||
85 | |||
86 | void map_outside_error(appdata_t *appdata) { | ||
87 | errorf(GTK_WIDGET(appdata->window), | ||
88 | _("Items must not be placed outside the working area!")); | ||
89 | } | ||
90 | |||
91 | void map_item_chain_destroy(map_item_chain_t **chainP) { | ||
92 | if(!*chainP) { | ||
93 | printf("nothing to destroy!\n"); | ||
94 | return; | ||
95 | } | ||
96 | |||
97 | #ifdef DESTROY_WAIT_FOR_GTK | ||
98 | map_item_chain_t *chain = *chainP; | ||
99 | while(chain) { | ||
100 | map_item_chain_t *next = chain->next; | ||
101 | canvas_item_destroy(chain->map_item->item); | ||
102 | chain = next; | ||
103 | } | ||
104 | |||
105 | /* wait until gtks event handling has actually destroyed this item */ | ||
106 | printf("waiting for item destruction "); | ||
107 | while(gtk_events_pending() || *chainP) { | ||
108 | putchar('.'); | ||
109 | gtk_main_iteration(); | ||
110 | } | ||
111 | printf(" ok\n"); | ||
112 | |||
113 | /* the callback routine connected to this item should have been */ | ||
114 | /* called by now and it has set the chain to NULL */ | ||
115 | |||
116 | #else | ||
117 | map_item_chain_t *chain = *chainP; | ||
118 | while(chain) { | ||
119 | map_item_chain_t *next = chain->next; | ||
120 | canvas_item_destroy(chain->map_item->item); | ||
121 | |||
122 | g_free(chain); | ||
123 | chain = next; | ||
124 | } | ||
125 | *chainP = NULL; | ||
126 | #endif | ||
127 | } | ||
128 | |||
129 | static void map_node_select(appdata_t *appdata, node_t *node) { | ||
130 | map_t *map = appdata->map; | ||
131 | map_item_t *map_item = &map->selected; | ||
132 | |||
133 | g_assert(!map->highlight); | ||
134 | |||
135 | map_item->type = MAP_TYPE_NODE; | ||
136 | map_item->node = node; | ||
137 | map_item->highlight = FALSE; | ||
138 | |||
139 | /* node may not have any visible representation at all */ | ||
140 | if(node->map_item_chain) | ||
141 | map_item->item = node->map_item_chain->map_item->item; | ||
142 | else | ||
143 | map_item->item = NULL; | ||
144 | |||
145 | map_statusbar(map, map_item); | ||
146 | icon_bar_map_item_selected(appdata, map_item, TRUE); | ||
147 | |||
148 | /* highlight node */ | ||
149 | gint x = map_item->node->lpos.x, y = map_item->node->lpos.y; | ||
150 | |||
151 | /* create a copy of this map item and mark it as being a highlight */ | ||
152 | map_item_t *new_map_item = g_new0(map_item_t, 1); | ||
153 | memcpy(new_map_item, map_item, sizeof(map_item_t)); | ||
154 | new_map_item->highlight = TRUE; | ||
155 | |||
156 | float radius = map->style->highlight.width + map->style->node.radius; | ||
157 | if(!node->ways) radius += map->style->node.border_radius; | ||
158 | harbaum | 14 | if(node->icon_buf && map->style->icon.enable && |
159 | !appdata->settings->no_icons) { | ||
160 | harbaum | 1 | gint w = gdk_pixbuf_get_width(map_item->node->icon_buf); |
161 | gint h = gdk_pixbuf_get_height(map_item->node->icon_buf); | ||
162 | /* icons are technically square, so a radius slightly bigger */ | ||
163 | /* than sqrt(2)*MAX(w,h) should fit nicely */ | ||
164 | radius = 0.75 * map->style->icon.scale * ((w>h)?w:h); | ||
165 | } | ||
166 | |||
167 | map_hl_circle_new(map, CANVAS_GROUP_NODES_HL, new_map_item, | ||
168 | x, y, radius, map->style->highlight.color); | ||
169 | harbaum | 103 | |
170 | harbaum | 1 | if(!map_item->item) { |
171 | /* and draw a fake node */ | ||
172 | new_map_item = g_new0(map_item_t, 1); | ||
173 | memcpy(new_map_item, map_item, sizeof(map_item_t)); | ||
174 | new_map_item->highlight = TRUE; | ||
175 | map_hl_circle_new(map, CANVAS_GROUP_NODES_HL, new_map_item, | ||
176 | x, y, map->style->node.radius, | ||
177 | map->style->highlight.node_color); | ||
178 | } | ||
179 | } | ||
180 | |||
181 | void map_way_select(appdata_t *appdata, way_t *way) { | ||
182 | map_t *map = appdata->map; | ||
183 | map_item_t *map_item = &map->selected; | ||
184 | |||
185 | g_assert(!map->highlight); | ||
186 | |||
187 | map_item->type = MAP_TYPE_WAY; | ||
188 | map_item->way = way; | ||
189 | map_item->highlight = FALSE; | ||
190 | map_item->item = way->map_item_chain->map_item->item; | ||
191 | |||
192 | map_statusbar(map, map_item); | ||
193 | icon_bar_map_item_selected(appdata, map_item, TRUE); | ||
194 | gtk_widget_set_sensitive(appdata->menu_item_map_hide_sel, TRUE); | ||
195 | |||
196 | gint arrow_width = (map_item->way->draw.flags & OSM_DRAW_FLAG_BG)? | ||
197 | map->style->highlight.width + map_item->way->draw.bg.width/2: | ||
198 | map->style->highlight.width + map_item->way->draw.width/2; | ||
199 | |||
200 | node_chain_t *node_chain = map_item->way->node_chain; | ||
201 | node_t *last = NULL; | ||
202 | while(node_chain) { | ||
203 | map_item_t item; | ||
204 | item.type = MAP_TYPE_NODE; | ||
205 | item.node = node_chain->node; | ||
206 | |||
207 | /* draw an arrow between every two nodes */ | ||
208 | if(last) { | ||
209 | /* create a new map item for every arrow */ | ||
210 | map_item_t *new_map_item = g_new0(map_item_t, 1); | ||
211 | new_map_item->type = MAP_TYPE_WAY; | ||
212 | new_map_item->way = way; | ||
213 | new_map_item->highlight = TRUE; | ||
214 | |||
215 | struct { float x, y;} center, diff; | ||
216 | center.x = (last->lpos.x + node_chain->node->lpos.x)/2; | ||
217 | center.y = (last->lpos.y + node_chain->node->lpos.y)/2; | ||
218 | diff.x = node_chain->node->lpos.x - last->lpos.x; | ||
219 | diff.y = node_chain->node->lpos.y - last->lpos.y; | ||
220 | |||
221 | harbaum | 15 | /* only draw arrow if there's sufficient space */ |
222 | /* TODO: what if there's not enough space anywhere? */ | ||
223 | harbaum | 1 | float len = sqrt(pow(diff.x, 2)+pow(diff.y, 2)); |
224 | if(len > map->style->highlight.arrow_limit*arrow_width) { | ||
225 | len /= arrow_width; | ||
226 | diff.x = diff.x / len; | ||
227 | diff.y = diff.y / len; | ||
228 | |||
229 | canvas_points_t *points = canvas_points_new(4); | ||
230 | points->coords[2*0+0] = points->coords[2*3+0] = center.x + diff.x; | ||
231 | points->coords[2*0+1] = points->coords[2*3+1] = center.y + diff.y; | ||
232 | points->coords[2*1+0] = center.x + diff.y - diff.x; | ||
233 | points->coords[2*1+1] = center.y - diff.x - diff.y; | ||
234 | points->coords[2*2+0] = center.x - diff.y - diff.x; | ||
235 | points->coords[2*2+1] = center.y + diff.x - diff.y; | ||
236 | |||
237 | map_hl_polygon_new(map, CANVAS_GROUP_NODES_HL, new_map_item, | ||
238 | points, map->style->highlight.arrow_color); | ||
239 | |||
240 | canvas_points_free(points); | ||
241 | } | ||
242 | } | ||
243 | |||
244 | if(!map_hl_item_is_highlighted(map, &item)) { | ||
245 | |||
246 | /* create a new map item for every node */ | ||
247 | map_item_t *new_map_item = g_new0(map_item_t, 1); | ||
248 | new_map_item->type = MAP_TYPE_NODE; | ||
249 | new_map_item->node = node_chain->node; | ||
250 | new_map_item->highlight = TRUE; | ||
251 | |||
252 | gint x = node_chain->node->lpos.x; | ||
253 | gint y = node_chain->node->lpos.y; | ||
254 | |||
255 | map_hl_circle_new(map, CANVAS_GROUP_NODES_HL, new_map_item, | ||
256 | x, y, map->style->node.radius, | ||
257 | map->style->highlight.node_color); | ||
258 | } | ||
259 | |||
260 | last = node_chain->node; | ||
261 | node_chain = node_chain->next; | ||
262 | } | ||
263 | |||
264 | /* a way needs at least 2 points to be drawn */ | ||
265 | guint nodes = osm_way_number_of_nodes(way); | ||
266 | if(nodes > 1) { | ||
267 | |||
268 | /* allocate space for nodes */ | ||
269 | canvas_points_t *points = canvas_points_new(nodes); | ||
270 | |||
271 | int node = 0; | ||
272 | node_chain = map_item->way->node_chain; | ||
273 | while(node_chain) { | ||
274 | canvas_point_set_pos(points, node++, &node_chain->node->lpos); | ||
275 | node_chain = node_chain->next; | ||
276 | } | ||
277 | |||
278 | /* create a copy of this map item and mark it as being a highlight */ | ||
279 | map_item_t *new_map_item = g_new0(map_item_t, 1); | ||
280 | memcpy(new_map_item, map_item, sizeof(map_item_t)); | ||
281 | new_map_item->highlight = TRUE; | ||
282 | |||
283 | map_hl_polyline_new(map, CANVAS_GROUP_WAYS_HL, new_map_item, points, | ||
284 | (map_item->way->draw.flags & OSM_DRAW_FLAG_BG)? | ||
285 | 2*map->style->highlight.width + map_item->way->draw.bg.width: | ||
286 | 2*map->style->highlight.width + map_item->way->draw.width, | ||
287 | map->style->highlight.color); | ||
288 | |||
289 | canvas_points_free(points); | ||
290 | } | ||
291 | } | ||
292 | |||
293 | static void map_item_select(appdata_t *appdata, map_item_t *map_item) { | ||
294 | switch(map_item->type) { | ||
295 | case MAP_TYPE_NODE: | ||
296 | map_node_select(appdata, map_item->node); | ||
297 | break; | ||
298 | case MAP_TYPE_WAY: | ||
299 | map_way_select(appdata, map_item->way); | ||
300 | break; | ||
301 | default: | ||
302 | g_assert((map_item->type == MAP_TYPE_NODE)|| | ||
303 | (map_item->type == MAP_TYPE_WAY)); | ||
304 | break; | ||
305 | } | ||
306 | } | ||
307 | |||
308 | void map_item_deselect(appdata_t *appdata) { | ||
309 | |||
310 | /* save tags for "last" function in info dialog */ | ||
311 | if(appdata->map->selected.type == MAP_TYPE_NODE) { | ||
312 | if(appdata->map->last_node_tags) | ||
313 | osm_tags_free(appdata->map->last_node_tags); | ||
314 | |||
315 | appdata->map->last_node_tags = | ||
316 | osm_tags_copy(appdata->map->selected.node->tag, FALSE); | ||
317 | } else if(appdata->map->selected.type == MAP_TYPE_WAY) { | ||
318 | if(appdata->map->last_way_tags) | ||
319 | osm_tags_free(appdata->map->last_way_tags); | ||
320 | |||
321 | appdata->map->last_way_tags = | ||
322 | osm_tags_copy(appdata->map->selected.way->tag, FALSE); | ||
323 | } | ||
324 | |||
325 | /* remove statusbar message */ | ||
326 | statusbar_set(appdata, NULL, FALSE); | ||
327 | |||
328 | /* disable/enable icons in icon bar */ | ||
329 | icon_bar_map_item_selected(appdata, NULL, FALSE); | ||
330 | gtk_widget_set_sensitive(appdata->menu_item_map_hide_sel, FALSE); | ||
331 | |||
332 | /* remove highlight */ | ||
333 | map_hl_remove(appdata); | ||
334 | |||
335 | /* forget about selection */ | ||
336 | appdata->map->selected.type = MAP_TYPE_ILLEGAL; | ||
337 | } | ||
338 | |||
339 | /* called whenever a map item is to be destroyed */ | ||
340 | static gint map_item_destroy_event(GtkWidget *widget, gpointer data) { | ||
341 | map_item_t *map_item = (map_item_t*)data; | ||
342 | |||
343 | // printf("destroying map_item @ %p\n", map_item); | ||
344 | |||
345 | #ifdef DESTROY_WAIT_FOR_GTK | ||
346 | /* remove item from nodes/ways map_item_chain */ | ||
347 | map_item_chain_t **chain = NULL; | ||
348 | if(map_item->type == MAP_TYPE_NODE) | ||
349 | chain = &map_item->node->map_item_chain; | ||
350 | else if(map_item->type == MAP_TYPE_WAY) | ||
351 | chain = &map_item->way->map_item_chain; | ||
352 | |||
353 | /* there must be a chain with content, otherwise things are broken */ | ||
354 | g_assert(chain); | ||
355 | g_assert(*chain); | ||
356 | |||
357 | /* search current map_item, ... */ | ||
358 | while(*chain && (*chain)->map_item != map_item) | ||
359 | chain = &(*chain)->next; | ||
360 | |||
361 | g_assert(*chain); | ||
362 | |||
363 | /* ... remove it from chain and free it */ | ||
364 | map_item_chain_t *tmp = *chain; | ||
365 | *chain = (*chain)->next; | ||
366 | |||
367 | g_free(tmp); | ||
368 | #endif | ||
369 | |||
370 | g_free(map_item); | ||
371 | return FALSE; | ||
372 | } | ||
373 | |||
374 | static canvas_item_t *map_node_new(map_t *map, node_t *node, gint radius, | ||
375 | gint width, canvas_color_t fill, canvas_color_t border) { | ||
376 | |||
377 | map_item_t *map_item = g_new0(map_item_t, 1); | ||
378 | map_item->type = MAP_TYPE_NODE; | ||
379 | map_item->node = node; | ||
380 | |||
381 | harbaum | 14 | if(!node->icon_buf || !map->style->icon.enable || |
382 | harbaum | 64 | map->appdata->settings->no_icons) |
383 | harbaum | 103 | map_item->item = canvas_circle_new(map->canvas, CANVAS_GROUP_NODES, |
384 | harbaum | 1 | node->lpos.x, node->lpos.y, radius, width, fill, border); |
385 | else | ||
386 | harbaum | 103 | map_item->item = canvas_image_new(map->canvas, CANVAS_GROUP_NODES, |
387 | harbaum | 1 | node->icon_buf, |
388 | node->lpos.x - map->style->icon.scale/2 * | ||
389 | gdk_pixbuf_get_width(node->icon_buf), | ||
390 | node->lpos.y - map->style->icon.scale/2 * | ||
391 | gdk_pixbuf_get_height(node->icon_buf), | ||
392 | map->style->icon.scale,map->style->icon.scale); | ||
393 | |||
394 | canvas_item_set_zoom_max(map_item->item, node->zoom_max); | ||
395 | |||
396 | /* attach map_item to nodes map_item_chain */ | ||
397 | map_item_chain_t **chain = &node->map_item_chain; | ||
398 | while(*chain) chain = &(*chain)->next; | ||
399 | *chain = g_new0(map_item_chain_t, 1); | ||
400 | (*chain)->map_item = map_item; | ||
401 | |||
402 | canvas_item_set_user_data(map_item->item, map_item); | ||
403 | |||
404 | canvas_item_destroy_connect(map_item->item, | ||
405 | G_CALLBACK(map_item_destroy_event), map_item); | ||
406 | |||
407 | return map_item->item; | ||
408 | } | ||
409 | |||
410 | /* in the rare case that a way consists of only one node, it is */ | ||
411 | /* drawn as a circle. This e.g. happens when drawing a new way */ | ||
412 | static canvas_item_t *map_way_single_new(map_t *map, way_t *way, gint radius, | ||
413 | gint width, canvas_color_t fill, canvas_color_t border) { | ||
414 | |||
415 | map_item_t *map_item = g_new0(map_item_t, 1); | ||
416 | map_item->type = MAP_TYPE_WAY; | ||
417 | map_item->way = way; | ||
418 | harbaum | 103 | map_item->item = canvas_circle_new(map->canvas, CANVAS_GROUP_WAYS, |
419 | harbaum | 1 | way->node_chain->node->lpos.x, way->node_chain->node->lpos.y, |
420 | radius, width, fill, border); | ||
421 | |||
422 | // TODO: decide: do we need canvas_item_set_zoom_max() here too? | ||
423 | |||
424 | /* attach map_item to nodes map_item_chain */ | ||
425 | map_item_chain_t **chain = &way->map_item_chain; | ||
426 | while(*chain) chain = &(*chain)->next; | ||
427 | *chain = g_new0(map_item_chain_t, 1); | ||
428 | (*chain)->map_item = map_item; | ||
429 | |||
430 | canvas_item_set_user_data(map_item->item, map_item); | ||
431 | |||
432 | canvas_item_destroy_connect(map_item->item, | ||
433 | G_CALLBACK(map_item_destroy_event), map_item); | ||
434 | |||
435 | return map_item->item; | ||
436 | } | ||
437 | |||
438 | static canvas_item_t *map_way_new(map_t *map, canvas_group_t group, | ||
439 | way_t *way, canvas_points_t *points, gint width, | ||
440 | canvas_color_t color, canvas_color_t fill_color) { | ||
441 | map_item_t *map_item = g_new0(map_item_t, 1); | ||
442 | map_item->type = MAP_TYPE_WAY; | ||
443 | map_item->way = way; | ||
444 | |||
445 | if(way->draw.flags & OSM_DRAW_FLAG_AREA) { | ||
446 | harbaum | 22 | if(map->style->area.color & 0xff) |
447 | harbaum | 103 | map_item->item = canvas_polygon_new(map->canvas, group, points, |
448 | harbaum | 1 | width, color, fill_color); |
449 | else | ||
450 | harbaum | 103 | map_item->item = canvas_polyline_new(map->canvas, group, points, |
451 | harbaum | 1 | width, color); |
452 | } else { | ||
453 | harbaum | 103 | map_item->item = canvas_polyline_new(map->canvas, group, points, width, color); |
454 | harbaum | 1 | } |
455 | |||
456 | canvas_item_set_zoom_max(map_item->item, way->draw.zoom_max); | ||
457 | |||
458 | achadwick | 13 | if (group != CANVAS_GROUP_WAYS_OL) |
459 | if (way->draw.dashed) | ||
460 | achadwick | 46 | canvas_item_set_dashed(map_item->item, width, way->draw.dash_length); |
461 | achadwick | 13 | |
462 | harbaum | 1 | /* attach map_item to ways map_item_chain */ |
463 | map_item_chain_t **chain = &way->map_item_chain; | ||
464 | while(*chain) chain = &(*chain)->next; | ||
465 | *chain = g_new0(map_item_chain_t, 1); | ||
466 | (*chain)->map_item = map_item; | ||
467 | |||
468 | canvas_item_set_user_data(map_item->item, map_item); | ||
469 | |||
470 | canvas_item_destroy_connect(map_item->item, | ||
471 | G_CALLBACK(map_item_destroy_event), map_item); | ||
472 | |||
473 | return map_item->item; | ||
474 | } | ||
475 | |||
476 | void map_show_node(map_t *map, node_t *node) { | ||
477 | map_node_new(map, node, map->style->node.radius, 0, | ||
478 | harbaum | 22 | map->style->node.color, 0); |
479 | harbaum | 1 | } |
480 | |||
481 | void map_way_draw(map_t *map, way_t *way) { | ||
482 | |||
483 | /* don't draw a way that's not there anymore */ | ||
484 | if(way->flags & (OSM_FLAG_DELETED | OSM_FLAG_HIDDEN)) | ||
485 | return; | ||
486 | |||
487 | /* allocate space for nodes */ | ||
488 | /* a way needs at least 2 points to be drawn */ | ||
489 | guint nodes = osm_way_number_of_nodes(way); | ||
490 | if(nodes == 1) { | ||
491 | /* draw a single dot where this single node is */ | ||
492 | map_way_single_new(map, way, map->style->node.radius, 0, | ||
493 | harbaum | 22 | map->style->node.color, 0); |
494 | harbaum | 1 | } else { |
495 | canvas_points_t *points = canvas_points_new(nodes); | ||
496 | |||
497 | int node = 0; | ||
498 | node_chain_t *node_chain = way->node_chain; | ||
499 | while(node_chain) { | ||
500 | canvas_point_set_pos(points, node++, &node_chain->node->lpos); | ||
501 | node_chain = node_chain->next; | ||
502 | } | ||
503 | |||
504 | /* draw way */ | ||
505 | if(way->draw.flags & OSM_DRAW_FLAG_AREA) { | ||
506 | map_way_new(map, CANVAS_GROUP_POLYGONS, way, points, | ||
507 | way->draw.width, way->draw.color, way->draw.area.color); | ||
508 | } else { | ||
509 | map_way_new(map, CANVAS_GROUP_WAYS, way, points, | ||
510 | way->draw.width, way->draw.color, NO_COLOR); | ||
511 | |||
512 | if(way->draw.flags & OSM_DRAW_FLAG_BG) | ||
513 | map_way_new(map, CANVAS_GROUP_WAYS_OL, way, points, | ||
514 | way->draw.bg.width, way->draw.bg.color, NO_COLOR); | ||
515 | } | ||
516 | canvas_points_free(points); | ||
517 | } | ||
518 | } | ||
519 | |||
520 | void map_node_draw(map_t *map, node_t *node) { | ||
521 | /* don't draw a node that's not there anymore */ | ||
522 | if(node->flags & OSM_FLAG_DELETED) | ||
523 | return; | ||
524 | |||
525 | if(!node->ways) | ||
526 | map_node_new(map, node, | ||
527 | map->style->node.radius, | ||
528 | map->style->node.border_radius, | ||
529 | harbaum | 22 | map->style->node.fill_color, |
530 | map->style->node.color); | ||
531 | harbaum | 1 | |
532 | else if(map->style->node.show_untagged || osm_node_has_tag(node)) | ||
533 | map_node_new(map, node, | ||
534 | map->style->node.radius, 0, | ||
535 | harbaum | 22 | map->style->node.color, 0); |
536 | harbaum | 1 | } |
537 | |||
538 | static void map_item_draw(map_t *map, map_item_t *map_item) { | ||
539 | switch(map_item->type) { | ||
540 | case MAP_TYPE_NODE: | ||
541 | map_node_draw(map, map_item->node); | ||
542 | break; | ||
543 | case MAP_TYPE_WAY: | ||
544 | map_way_draw(map, map_item->way); | ||
545 | break; | ||
546 | default: | ||
547 | g_assert((map_item->type == MAP_TYPE_NODE) || | ||
548 | (map_item->type == MAP_TYPE_WAY)); | ||
549 | } | ||
550 | } | ||
551 | |||
552 | static void map_item_remove(map_t *map, map_item_t *map_item) { | ||
553 | map_item_chain_t **chainP = NULL; | ||
554 | |||
555 | switch(map_item->type) { | ||
556 | case MAP_TYPE_NODE: | ||
557 | chainP = &map_item->node->map_item_chain; | ||
558 | break; | ||
559 | case MAP_TYPE_WAY: | ||
560 | chainP = &map_item->way->map_item_chain; | ||
561 | break; | ||
562 | default: | ||
563 | g_assert((map_item->type == MAP_TYPE_NODE) || | ||
564 | (map_item->type == MAP_TYPE_WAY)); | ||
565 | } | ||
566 | |||
567 | map_item_chain_destroy(chainP); | ||
568 | } | ||
569 | |||
570 | static void map_item_init(style_t *style, map_item_t *map_item) { | ||
571 | switch (map_item->type){ | ||
572 | case MAP_TYPE_WAY: | ||
573 | josm_elemstyles_colorize_way(style, map_item->way); | ||
574 | break; | ||
575 | case MAP_TYPE_NODE: | ||
576 | josm_elemstyles_colorize_node(style, map_item->node); | ||
577 | break; | ||
578 | default: | ||
579 | g_assert((map_item->type == MAP_TYPE_NODE) || | ||
580 | (map_item->type == MAP_TYPE_WAY)); | ||
581 | } | ||
582 | } | ||
583 | |||
584 | void map_item_redraw(appdata_t *appdata, map_item_t *map_item) { | ||
585 | map_item_t item = *map_item; | ||
586 | |||
587 | /* check if the item to be redrawn is the selected one */ | ||
588 | gboolean is_selected = FALSE; | ||
589 | if(map_item->ptr == appdata->map->selected.ptr) { | ||
590 | map_item_deselect(appdata); | ||
591 | is_selected = TRUE; | ||
592 | } | ||
593 | |||
594 | map_item_remove(appdata->map, &item); | ||
595 | map_item_init(appdata->map->style, &item); | ||
596 | map_item_draw(appdata->map, &item); | ||
597 | |||
598 | /* restore selection if there was one */ | ||
599 | if(is_selected) | ||
600 | map_item_select(appdata, &item); | ||
601 | } | ||
602 | |||
603 | static void map_frisket_rectangle(canvas_points_t *points, | ||
604 | gint x0, gint x1, gint y0, gint y1) { | ||
605 | points->coords[2*0+0] = points->coords[2*3+0] = points->coords[2*4+0] = x0; | ||
606 | points->coords[2*1+0] = points->coords[2*2+0] = x1; | ||
607 | points->coords[2*0+1] = points->coords[2*1+1] = points->coords[2*4+1] = y0; | ||
608 | points->coords[2*2+1] = points->coords[2*3+1] = y1; | ||
609 | } | ||
610 | |||
611 | /* Draw the frisket area which masks off areas it'd be unsafe to edit, | ||
612 | * plus its inner edge marker line */ | ||
613 | void map_frisket_draw(map_t *map, bounds_t *bounds) { | ||
614 | canvas_points_t *points = canvas_points_new(5); | ||
615 | |||
616 | /* don't draw frisket at all if it's completely transparent */ | ||
617 | harbaum | 22 | if(map->style->frisket.color & 0xff) { |
618 | elemstyle_color_t color = map->style->frisket.color; | ||
619 | harbaum | 1 | |
620 | float mult = map->style->frisket.mult; | ||
621 | |||
622 | /* top rectangle */ | ||
623 | map_frisket_rectangle(points, mult*bounds->min.x, mult*bounds->max.x, | ||
624 | mult*bounds->min.y, bounds->min.y); | ||
625 | harbaum | 103 | canvas_polygon_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
626 | 1, NO_COLOR, color); | ||
627 | harbaum | 1 | |
628 | /* bottom rectangle */ | ||
629 | map_frisket_rectangle(points, mult*bounds->min.x, mult*bounds->max.x, | ||
630 | bounds->max.y, mult*bounds->max.y); | ||
631 | harbaum | 103 | canvas_polygon_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
632 | 1, NO_COLOR, color); | ||
633 | harbaum | 1 | |
634 | /* left rectangle */ | ||
635 | map_frisket_rectangle(points, mult*bounds->min.x, bounds->min.x, | ||
636 | mult*bounds->min.y, mult*bounds->max.y); | ||
637 | harbaum | 103 | canvas_polygon_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
638 | 1, NO_COLOR, color); | ||
639 | harbaum | 1 | |
640 | /* right rectangle */ | ||
641 | map_frisket_rectangle(points, bounds->max.x, mult*bounds->max.x, | ||
642 | mult*bounds->min.y, mult*bounds->max.y); | ||
643 | harbaum | 103 | canvas_polygon_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
644 | 1, NO_COLOR, color); | ||
645 | harbaum | 1 | |
646 | } | ||
647 | |||
648 | if(map->style->frisket.border.present) { | ||
649 | // Edge marker line | ||
650 | gint ew2 = map->style->frisket.border.width/2; | ||
651 | map_frisket_rectangle(points, | ||
652 | bounds->min.x-ew2, bounds->max.x+ew2, | ||
653 | bounds->min.y-ew2, bounds->max.y+ew2); | ||
654 | |||
655 | harbaum | 103 | canvas_polyline_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
656 | harbaum | 1 | map->style->frisket.border.width, |
657 | map->style->frisket.border.color); | ||
658 | |||
659 | } | ||
660 | canvas_points_free(points); | ||
661 | } | ||
662 | |||
663 | static void map_draw(map_t *map, osm_t *osm) { | ||
664 | g_assert(map->canvas); | ||
665 | |||
666 | printf("drawing ways ...\n"); | ||
667 | way_t *way = osm->way; | ||
668 | while(way) { | ||
669 | map_way_draw(map, way); | ||
670 | way = way->next; | ||
671 | } | ||
672 | |||
673 | printf("drawing single nodes ...\n"); | ||
674 | node_t *node = osm->node; | ||
675 | while(node) { | ||
676 | map_node_draw(map, node); | ||
677 | node = node->next; | ||
678 | } | ||
679 | |||
680 | printf("drawing frisket...\n"); | ||
681 | map_frisket_draw(map, osm->bounds); | ||
682 | } | ||
683 | |||
684 | void map_state_free(map_state_t *state) { | ||
685 | if(!state) return; | ||
686 | |||
687 | /* free state of noone else references it */ | ||
688 | if(state->refcount > 1) | ||
689 | state->refcount--; | ||
690 | else | ||
691 | g_free(state); | ||
692 | } | ||
693 | |||
694 | void map_free_map_item_chains(appdata_t *appdata) { | ||
695 | if(!appdata->osm) return; | ||
696 | |||
697 | #ifndef DESTROY_WAIT_FOR_GTK | ||
698 | printf(" DESTROY_WAIT_FOR_GTK not set, removing all chains now\n"); | ||
699 | |||
700 | /* free all map_item_chains */ | ||
701 | node_t *node = appdata->osm->node; | ||
702 | while(node) { | ||
703 | map_item_chain_t *chain = node->map_item_chain; | ||
704 | while(chain) { | ||
705 | map_item_chain_t *next = chain->next; | ||
706 | g_free(chain); | ||
707 | chain = next; | ||
708 | } | ||
709 | node->map_item_chain = NULL; | ||
710 | node = node->next; | ||
711 | } | ||
712 | |||
713 | way_t *way = appdata->osm->way; | ||
714 | while(way) { | ||
715 | map_item_chain_t *chain = way->map_item_chain; | ||
716 | while(chain) { | ||
717 | map_item_chain_t *next = chain->next; | ||
718 | g_free(chain); | ||
719 | chain = next; | ||
720 | } | ||
721 | way->map_item_chain = NULL; | ||
722 | way = way->next; | ||
723 | } | ||
724 | #endif | ||
725 | } | ||
726 | |||
727 | static gint map_destroy_event(GtkWidget *widget, gpointer data) { | ||
728 | appdata_t *appdata = (appdata_t*)data; | ||
729 | map_t *map = appdata->map; | ||
730 | |||
731 | printf("destroying entire map\n"); | ||
732 | |||
733 | map_free_map_item_chains(appdata); | ||
734 | |||
735 | /* free buffered tags */ | ||
736 | if(map->last_node_tags) osm_tags_free(map->last_node_tags); | ||
737 | if(map->last_way_tags) osm_tags_free(map->last_way_tags); | ||
738 | |||
739 | map_state_free(map->state); | ||
740 | |||
741 | if(map->style) | ||
742 | style_free(map->style); | ||
743 | |||
744 | /* destroy existing highlight */ | ||
745 | if(map->highlight) { | ||
746 | printf("removing highlight\n"); | ||
747 | |||
748 | map_highlight_t *hl = map->highlight; | ||
749 | while(hl) { | ||
750 | map_highlight_t *next = hl->next; | ||
751 | g_free(hl); | ||
752 | hl = next; | ||
753 | } | ||
754 | } | ||
755 | |||
756 | g_free(map); | ||
757 | |||
758 | appdata->map = NULL; | ||
759 | |||
760 | return FALSE; | ||
761 | } | ||
762 | |||
763 | /* get the item at position x, y */ | ||
764 | map_item_t *map_item_at(map_t *map, gint x, gint y) { | ||
765 | printf("map check at %d/%d\n", x, y); | ||
766 | |||
767 | canvas_window2world(map->canvas, x, y, &x, &y); | ||
768 | |||
769 | printf("world check at %d/%d\n", x, y); | ||
770 | |||
771 | canvas_item_t *item = canvas_get_item_at(map->canvas, x, y); | ||
772 | |||
773 | if(!item) { | ||
774 | printf(" there's no item\n"); | ||
775 | return NULL; | ||
776 | } | ||
777 | |||
778 | printf(" there's an item (%p)\n", item); | ||
779 | |||
780 | map_item_t *map_item = canvas_item_get_user_data(item); | ||
781 | |||
782 | if(!map_item) { | ||
783 | printf(" item has no user data!\n"); | ||
784 | return NULL; | ||
785 | } | ||
786 | |||
787 | harbaum | 15 | if(map_item->highlight) |
788 | harbaum | 1 | printf(" item is highlight\n"); |
789 | |||
790 | switch(map_item->type) { | ||
791 | case MAP_TYPE_NODE: | ||
792 | printf(" item is node #%ld\n", map_item->node->id); | ||
793 | break; | ||
794 | case MAP_TYPE_WAY: | ||
795 | printf(" item is way #%ld\n", map_item->way->id); | ||
796 | break; | ||
797 | default: | ||
798 | printf(" unknown item\n"); | ||
799 | break; | ||
800 | } | ||
801 | |||
802 | return map_item; | ||
803 | } | ||
804 | |||
805 | /* get the real item (no highlight) at x, y */ | ||
806 | harbaum | 15 | map_item_t *map_real_item_at(map_t *map, gint x, gint y) { |
807 | harbaum | 1 | map_item_t *map_item = map_item_at(map, x, y); |
808 | |||
809 | /* no item or already a real one */ | ||
810 | if(!map_item || !map_item->highlight) return map_item; | ||
811 | |||
812 | /* get the item (parent) this item is the highlight of */ | ||
813 | map_item_t *parent = NULL; | ||
814 | switch(map_item->type) { | ||
815 | |||
816 | case MAP_TYPE_NODE: | ||
817 | if(map_item->node->map_item_chain) | ||
818 | parent = map_item->node->map_item_chain->map_item; | ||
819 | |||
820 | if(parent) | ||
821 | printf(" using parent item node #%ld\n", parent->node->id); | ||
822 | break; | ||
823 | |||
824 | case MAP_TYPE_WAY: | ||
825 | if(map_item->way->map_item_chain) | ||
826 | parent = map_item->way->map_item_chain->map_item; | ||
827 | |||
828 | if(parent) | ||
829 | printf(" using parent item way #%ld\n", parent->way->id); | ||
830 | break; | ||
831 | |||
832 | default: | ||
833 | g_assert((map_item->type == MAP_TYPE_NODE) || | ||
834 | (map_item->type == MAP_TYPE_WAY)); | ||
835 | break; | ||
836 | } | ||
837 | |||
838 | if(parent) | ||
839 | map_item = parent; | ||
840 | else | ||
841 | printf(" no parent, working on highlight itself\n"); | ||
842 | |||
843 | return map_item; | ||
844 | } | ||
845 | |||
846 | /* Limitations on the amount by which we can scroll. Keeps part of the | ||
847 | * map visible at all times */ | ||
848 | harbaum | 103 | static void map_limit_scroll(map_t *map, canvas_unit_t unit, |
849 | gint *sx, gint *sy) { | ||
850 | harbaum | 1 | |
851 | harbaum | 103 | /* get scale factor for pixel->meter conversion. set to 1 if */ |
852 | /* given coordinates are already in meters */ | ||
853 | gdouble scale = (unit == CANVAS_UNIT_METER)?1.0:canvas_get_zoom(map->canvas); | ||
854 | harbaum | 1 | |
855 | harbaum | 103 | /* convert pixels to meters if necessary */ |
856 | gdouble sx_cu = *sx / scale; | ||
857 | gdouble sy_cu = *sy / scale; | ||
858 | |||
859 | /* get size of visible area in canvas units (meters) */ | ||
860 | gint aw_cu = canvas_get_viewport_width(map->canvas, CANVAS_UNIT_METER); | ||
861 | gint ah_cu = canvas_get_viewport_height(map->canvas, CANVAS_UNIT_METER); | ||
862 | |||
863 | // Data rect minimum and maximum | ||
864 | gint min_x, min_y, max_x, max_y; | ||
865 | min_x = map->appdata->osm->bounds->min.x; | ||
866 | min_y = map->appdata->osm->bounds->min.y; | ||
867 | max_x = map->appdata->osm->bounds->max.x; | ||
868 | max_y = map->appdata->osm->bounds->max.y; | ||
869 | |||
870 | // limit stops - prevent scrolling beyond these | ||
871 | gint min_sy_cu = 0.95*(min_y - ah_cu); | ||
872 | gint min_sx_cu = 0.95*(min_x - aw_cu); | ||
873 | gint max_sy_cu = 0.95*(max_y); | ||
874 | gint max_sx_cu = 0.95*(max_x); | ||
875 | if (sy_cu < min_sy_cu) { *sy = min_sy_cu * scale; } | ||
876 | if (sx_cu < min_sx_cu) { *sx = min_sx_cu * scale; } | ||
877 | if (sy_cu > max_sy_cu) { *sy = max_sy_cu * scale; } | ||
878 | if (sx_cu > max_sx_cu) { *sx = max_sx_cu * scale; } | ||
879 | harbaum | 1 | } |
880 | |||
881 | |||
882 | /* Limit a proposed zoom factor to sane ranges. | ||
883 | * Specifically the map is allowed to be no smaller than the viewport. */ | ||
884 | static gboolean map_limit_zoom(map_t *map, gdouble *zoom) { | ||
885 | // Data rect minimum and maximum | ||
886 | gint min_x, min_y, max_x, max_y; | ||
887 | min_x = map->appdata->osm->bounds->min.x; | ||
888 | min_y = map->appdata->osm->bounds->min.y; | ||
889 | max_x = map->appdata->osm->bounds->max.x; | ||
890 | max_y = map->appdata->osm->bounds->max.y; | ||
891 | |||
892 | harbaum | 103 | /* get size of visible area in pixels and convert to meters of intended */ |
893 | /* zoom by deviding by zoom (which is basically pix/m) */ | ||
894 | gint aw_cu = | ||
895 | canvas_get_viewport_width(map->canvas, CANVAS_UNIT_PIXEL) / *zoom; | ||
896 | gint ah_cu = | ||
897 | canvas_get_viewport_height(map->canvas, CANVAS_UNIT_PIXEL) / *zoom; | ||
898 | harbaum | 1 | |
899 | gdouble oldzoom = *zoom; | ||
900 | if (ah_cu < aw_cu) { | ||
901 | gint lim_h = ah_cu*0.95; | ||
902 | if (max_y-min_y < lim_h) { | ||
903 | gdouble corr = ((gdouble)max_y-min_y) / (gdouble)lim_h; | ||
904 | *zoom /= corr; | ||
905 | } | ||
906 | } | ||
907 | else { | ||
908 | gint lim_w = aw_cu*0.95; | ||
909 | if (max_x-min_x < lim_w) { | ||
910 | gdouble corr = ((gdouble)max_x-min_x) / (gdouble)lim_w; | ||
911 | *zoom /= corr; | ||
912 | } | ||
913 | } | ||
914 | if (*zoom != oldzoom) { | ||
915 | printf("Can't zoom further out\n"); | ||
916 | return 1; | ||
917 | } | ||
918 | return 0; | ||
919 | } | ||
920 | |||
921 | |||
922 | achadwick | 12 | /* |
923 | * Scroll the map to a point if that point is currently offscreen. | ||
924 | */ | ||
925 | void map_scroll_to_if_offscreen(map_t *map, lpos_t *lpos) { | ||
926 | |||
927 | // Ignore anything outside the working area | ||
928 | if (!(map && map->appdata && map->appdata->osm)) { | ||
929 | return; | ||
930 | } | ||
931 | gint min_x, min_y, max_x, max_y; | ||
932 | min_x = map->appdata->osm->bounds->min.x; | ||
933 | min_y = map->appdata->osm->bounds->min.y; | ||
934 | max_x = map->appdata->osm->bounds->max.x; | ||
935 | max_y = map->appdata->osm->bounds->max.y; | ||
936 | if ( (lpos->x > max_x) || (lpos->x < min_x) | ||
937 | || (lpos->y > max_y) || (lpos->y < min_y)) { | ||
938 | harbaum | 14 | printf("cannot scroll to (%d, %d): outside the working area\n", |
939 | lpos->x, lpos->y); | ||
940 | achadwick | 12 | return; |
941 | } | ||
942 | |||
943 | // Viewport dimensions in canvas space | ||
944 | |||
945 | harbaum | 103 | /* get size of visible area in canvas units (meters) */ |
946 | gdouble pix_per_meter = canvas_get_zoom(map->canvas); | ||
947 | gdouble aw = canvas_get_viewport_width(map->canvas, CANVAS_UNIT_METER); | ||
948 | gdouble ah = canvas_get_viewport_height(map->canvas, CANVAS_UNIT_METER); | ||
949 | |||
950 | achadwick | 12 | // Is the point still onscreen? |
951 | gboolean vert_recentre_needed = FALSE; | ||
952 | gboolean horiz_recentre_needed = FALSE; | ||
953 | gint sx, sy; | ||
954 | harbaum | 103 | canvas_scroll_get(map->canvas, CANVAS_UNIT_PIXEL, &sx, &sy); |
955 | gint viewport_left = (sx/pix_per_meter); | ||
956 | gint viewport_right = (sx/pix_per_meter)+aw; | ||
957 | gint viewport_top = (sy/pix_per_meter); | ||
958 | gint viewport_bottom = (sy/pix_per_meter)+ah; | ||
959 | achadwick | 12 | if (lpos->x > viewport_right) { |
960 | printf("** off right edge (%d > %d)\n", lpos->x, viewport_right); | ||
961 | horiz_recentre_needed = TRUE; | ||
962 | } | ||
963 | if (lpos->x < viewport_left) { | ||
964 | printf("** off left edge (%d < %d)\n", lpos->x, viewport_left); | ||
965 | horiz_recentre_needed = TRUE; | ||
966 | } | ||
967 | if (lpos->y > viewport_bottom) { | ||
968 | printf("** off bottom edge (%d > %d)\n", lpos->y, viewport_bottom); | ||
969 | vert_recentre_needed = TRUE; | ||
970 | } | ||
971 | if (lpos->y < viewport_top) { | ||
972 | printf("** off top edge (%d < %d)\n", lpos->y, viewport_top); | ||
973 | vert_recentre_needed = TRUE; | ||
974 | } | ||
975 | |||
976 | if (horiz_recentre_needed || vert_recentre_needed) { | ||
977 | gint new_sx, new_sy; | ||
978 | harbaum | 78 | |
979 | achadwick | 12 | // Just centre both at once |
980 | harbaum | 103 | new_sx = pix_per_meter * (lpos->x - (aw/2)); |
981 | new_sy = pix_per_meter * (lpos->y - (ah/2)); | ||
982 | harbaum | 78 | |
983 | harbaum | 103 | map_limit_scroll(map, CANVAS_UNIT_PIXEL, &new_sx, &new_sy); |
984 | canvas_scroll_to(map->canvas, CANVAS_UNIT_PIXEL, new_sx, new_sy); | ||
985 | achadwick | 12 | } |
986 | } | ||
987 | |||
988 | harbaum | 1 | /* Deselects the current way or node if its zoom_max |
989 | * means that it's not going to render at the current map zoom. */ | ||
990 | void map_deselect_if_zoom_below_zoom_max(map_t *map) { | ||
991 | if (map->selected.type == MAP_TYPE_WAY) { | ||
992 | printf("will deselect way if zoomed below %f\n", | ||
993 | map->selected.way->draw.zoom_max); | ||
994 | if (map->state->zoom < map->selected.way->draw.zoom_max) { | ||
995 | printf(" deselecting way!\n"); | ||
996 | map_item_deselect(map->appdata); | ||
997 | } | ||
998 | } | ||
999 | else if (map->selected.type == MAP_TYPE_NODE) { | ||
1000 | printf("will deselect node if zoomed below %f\n", | ||
1001 | map->selected.node->zoom_max); | ||
1002 | if (map->state->zoom < map->selected.node->zoom_max) { | ||
1003 | printf(" deselecting node!\n"); | ||
1004 | map_item_deselect(map->appdata); | ||
1005 | } | ||
1006 | } | ||
1007 | } | ||
1008 | |||
1009 | void map_set_zoom(map_t *map, double zoom, | ||
1010 | gboolean update_scroll_offsets) { | ||
1011 | gboolean at_zoom_limit = 0; | ||
1012 | at_zoom_limit = map_limit_zoom(map, &zoom); | ||
1013 | harbaum | 78 | |
1014 | harbaum | 1 | map->state->zoom = zoom; |
1015 | canvas_set_zoom(map->canvas, map->state->zoom); | ||
1016 | |||
1017 | map_deselect_if_zoom_below_zoom_max(map); | ||
1018 | |||
1019 | harbaum | 103 | if(update_scroll_offsets) { |
1020 | harbaum | 1 | if (!at_zoom_limit) { |
1021 | /* zooming affects the scroll offsets */ | ||
1022 | gint sx, sy; | ||
1023 | harbaum | 103 | canvas_scroll_get(map->canvas, CANVAS_UNIT_PIXEL, &sx, &sy); |
1024 | map_limit_scroll(map, CANVAS_UNIT_PIXEL, &sx, &sy); | ||
1025 | |||
1026 | // keep the map visible | ||
1027 | canvas_scroll_to(map->canvas, CANVAS_UNIT_PIXEL, sx, sy); | ||
1028 | harbaum | 1 | } |
1029 | harbaum | 103 | |
1030 | canvas_scroll_get(map->canvas, CANVAS_UNIT_METER, | ||
1031 | &map->state->scroll_offset.x, | ||
1032 | &map->state->scroll_offset.y); | ||
1033 | harbaum | 1 | } |
1034 | } | ||
1035 | |||
1036 | static gboolean map_scroll_event(GtkWidget *widget, GdkEventScroll *event, | ||
1037 | gpointer data) { | ||
1038 | appdata_t *appdata = (appdata_t*)data; | ||
1039 | |||
1040 | if(!appdata->osm) return FALSE; | ||
1041 | |||
1042 | if(event->type == GDK_SCROLL && appdata->map && appdata->map->state) { | ||
1043 | if(event->direction) | ||
1044 | map_set_zoom(appdata->map, | ||
1045 | appdata->map->state->zoom / ZOOM_FACTOR_WHEEL, TRUE); | ||
1046 | else | ||
1047 | map_set_zoom(appdata->map, | ||
1048 | appdata->map->state->zoom * ZOOM_FACTOR_WHEEL, TRUE); | ||
1049 | } | ||
1050 | |||
1051 | return TRUE; | ||
1052 | } | ||
1053 | |||
1054 | static gboolean distance_above(map_t *map, gint x, gint y, gint limit) { | ||
1055 | gint sx, sy; | ||
1056 | |||
1057 | /* add offsets generated by mouse within map and map scrolling */ | ||
1058 | sx = (x-map->pen_down.at.x); | ||
1059 | sy = (y-map->pen_down.at.y); | ||
1060 | |||
1061 | return(sx*sx + sy*sy > limit*limit); | ||
1062 | } | ||
1063 | |||
1064 | /* scroll with respect to two screen positions */ | ||
1065 | static void map_do_scroll(map_t *map, gint x, gint y) { | ||
1066 | gint sx, sy; | ||
1067 | |||
1068 | harbaum | 103 | canvas_scroll_get(map->canvas, CANVAS_UNIT_PIXEL, &sx, &sy); |
1069 | harbaum | 1 | sx -= x-map->pen_down.at.x; |
1070 | sy -= y-map->pen_down.at.y; | ||
1071 | harbaum | 103 | map_limit_scroll(map, CANVAS_UNIT_PIXEL, &sx, &sy); |
1072 | canvas_scroll_to(map->canvas, CANVAS_UNIT_PIXEL, sx, sy); | ||
1073 | |||
1074 | canvas_scroll_get(map->canvas, CANVAS_UNIT_METER, | ||
1075 | &map->state->scroll_offset.x, | ||
1076 | &map->state->scroll_offset.y); | ||
1077 | harbaum | 1 | } |
1078 | |||
1079 | |||
1080 | /* scroll a certain step */ | ||
1081 | static void map_do_scroll_step(map_t *map, gint x, gint y) { | ||
1082 | gint sx, sy; | ||
1083 | harbaum | 103 | canvas_scroll_get(map->canvas, CANVAS_UNIT_PIXEL, &sx, &sy); |
1084 | harbaum | 1 | sx += x; |
1085 | sy += y; | ||
1086 | harbaum | 103 | map_limit_scroll(map, CANVAS_UNIT_PIXEL, &sx, &sy); |
1087 | canvas_scroll_to(map->canvas, CANVAS_UNIT_PIXEL, sx, sy); | ||
1088 | |||
1089 | canvas_scroll_get(map->canvas, CANVAS_UNIT_METER, | ||
1090 | &map->state->scroll_offset.x, | ||
1091 | &map->state->scroll_offset.y); | ||
1092 | harbaum | 1 | } |
1093 | |||
1094 | gboolean map_item_is_selected_node(map_t *map, map_item_t *map_item) { | ||
1095 | printf("check if item is a selected node\n"); | ||
1096 | |||
1097 | if(!map_item) { | ||
1098 | printf(" no item requested\n"); | ||
1099 | return FALSE; | ||
1100 | } | ||
1101 | |||
1102 | if(map->selected.type == MAP_TYPE_ILLEGAL) { | ||
1103 | printf(" nothing is selected\n"); | ||
1104 | return FALSE; | ||
1105 | } | ||
1106 | |||
1107 | /* clicked the highlight directly */ | ||
1108 | if(map_item->type != MAP_TYPE_NODE) { | ||
1109 | printf(" didn't click node\n"); | ||
1110 | return FALSE; | ||
1111 | } | ||
1112 | |||
1113 | if(map->selected.type == MAP_TYPE_NODE) { | ||
1114 | printf(" selected item is a node\n"); | ||
1115 | |||
1116 | if(map_item->node == map->selected.node) { | ||
1117 | printf(" requested item is a selected node\n"); | ||
1118 | return TRUE; | ||
1119 | } | ||
1120 | printf(" but it's not the requested one\n"); | ||
1121 | return FALSE; | ||
1122 | |||
1123 | } else if(map->selected.type == MAP_TYPE_WAY) { | ||
1124 | printf(" selected item is a way\n"); | ||
1125 | |||
1126 | node_chain_t *node_chain = map->selected.way->node_chain; | ||
1127 | while(node_chain) { | ||
1128 | if(node_chain->node == map_item->node) { | ||
1129 | printf(" requested item is part of selected way\n"); | ||
1130 | return TRUE; | ||
1131 | } | ||
1132 | node_chain = node_chain->next; | ||
1133 | } | ||
1134 | printf(" but it doesn't include the requested node\n"); | ||
1135 | return FALSE; | ||
1136 | |||
1137 | } else { | ||
1138 | printf(" selected item is unknown\n"); | ||
1139 | return FALSE; | ||
1140 | } | ||
1141 | |||
1142 | g_assert(0); | ||
1143 | return TRUE; | ||
1144 | } | ||
1145 | |||
1146 | /* return true if the item given is the currenly selected way */ | ||
1147 | /* also return false if nothing is selected or the selection is no way */ | ||
1148 | gboolean map_item_is_selected_way(map_t *map, map_item_t *map_item) { | ||
1149 | printf("check if item is the selected way\n"); | ||
1150 | |||
1151 | if(!map_item) { | ||
1152 | printf(" no item requested\n"); | ||
1153 | return FALSE; | ||
1154 | } | ||
1155 | |||
1156 | if(map->selected.type == MAP_TYPE_ILLEGAL) { | ||
1157 | printf(" nothing is selected\n"); | ||
1158 | return FALSE; | ||
1159 | } | ||
1160 | |||
1161 | /* clicked the highlight directly */ | ||
1162 | if(map_item->type != MAP_TYPE_WAY) { | ||
1163 | printf(" didn't click way\n"); | ||
1164 | return FALSE; | ||
1165 | } | ||
1166 | |||
1167 | if(map->selected.type == MAP_TYPE_WAY) { | ||
1168 | printf(" selected item is a way\n"); | ||
1169 | |||
1170 | if(map_item->way == map->selected.way) { | ||
1171 | printf(" requested item is a selected way\n"); | ||
1172 | return TRUE; | ||
1173 | } | ||
1174 | printf(" but it's not the requested one\n"); | ||
1175 | return FALSE; | ||
1176 | } | ||
1177 | |||
1178 | printf(" selected item is not a way\n"); | ||
1179 | return FALSE; | ||
1180 | } | ||
1181 | |||
1182 | |||
1183 | void map_highlight_refresh(appdata_t *appdata) { | ||
1184 | map_t *map = appdata->map; | ||
1185 | map_item_t old = map->selected; | ||
1186 | |||
1187 | printf("type to refresh is %d\n", old.type); | ||
1188 | if(old.type == MAP_TYPE_ILLEGAL) | ||
1189 | return; | ||
1190 | |||
1191 | map_item_deselect(appdata); | ||
1192 | map_item_select(appdata, &old); | ||
1193 | } | ||
1194 | |||
1195 | void map_way_delete(appdata_t *appdata, way_t *way) { | ||
1196 | printf("deleting way #%ld from map and osm\n", way->id); | ||
1197 | |||
1198 | /* remove it visually from the screen */ | ||
1199 | map_item_chain_destroy(&way->map_item_chain); | ||
1200 | |||
1201 | /* also remove the visible representation of all nodes (nodes with tags) */ | ||
1202 | node_chain_t *chain = way->node_chain; | ||
1203 | while(chain) { | ||
1204 | if(chain->node->map_item_chain) | ||
1205 | map_item_chain_destroy(&chain->node->map_item_chain); | ||
1206 | |||
1207 | chain = chain->next; | ||
1208 | } | ||
1209 | |||
1210 | /* and mark it "deleted" in the database */ | ||
1211 | osm_way_remove_from_relation(appdata->osm, way); | ||
1212 | osm_way_delete(appdata->osm, &appdata->icon, way, FALSE); | ||
1213 | } | ||
1214 | |||
1215 | static void map_handle_click(appdata_t *appdata, map_t *map) { | ||
1216 | |||
1217 | /* problem: on_item may be the highlight itself! So store it! */ | ||
1218 | map_item_t map_item; | ||
1219 | if(map->pen_down.on_item) map_item = *map->pen_down.on_item; | ||
1220 | else map_item.type = MAP_TYPE_ILLEGAL; | ||
1221 | |||
1222 | /* if we aready have something selected, then de-select it */ | ||
1223 | map_item_deselect(appdata); | ||
1224 | |||
1225 | /* select the clicked item (if there was one) */ | ||
1226 | if(map_item.type != MAP_TYPE_ILLEGAL) { | ||
1227 | switch(map_item.type) { | ||
1228 | case MAP_TYPE_NODE: | ||
1229 | map_node_select(appdata, map_item.node); | ||
1230 | break; | ||
1231 | |||
1232 | case MAP_TYPE_WAY: | ||
1233 | map_way_select(appdata, map_item.way); | ||
1234 | break; | ||
1235 | |||
1236 | default: | ||
1237 | g_assert((map_item.type == MAP_TYPE_NODE) || | ||
1238 | (map_item.type == MAP_TYPE_WAY)); | ||
1239 | break; | ||
1240 | } | ||
1241 | } | ||
1242 | } | ||
1243 | |||
1244 | static void map_touchnode_update(appdata_t *appdata, gint x, gint y) { | ||
1245 | map_t *map = appdata->map; | ||
1246 | |||
1247 | map_hl_touchnode_clear(map); | ||
1248 | |||
1249 | node_t *cur_node = NULL; | ||
1250 | |||
1251 | /* the "current node" which is the one we are working on and which */ | ||
1252 | /* should not be highlighted depends on the action */ | ||
1253 | switch(map->action.type) { | ||
1254 | |||
1255 | /* in idle mode the dragged node is not highlighted */ | ||
1256 | case MAP_ACTION_IDLE: | ||
1257 | g_assert(map->pen_down.on_item); | ||
1258 | g_assert(map->pen_down.on_item->type == MAP_TYPE_NODE); | ||
1259 | cur_node = map->pen_down.on_item->node; | ||
1260 | break; | ||
1261 | |||
1262 | default: | ||
1263 | break; | ||
1264 | } | ||
1265 | |||
1266 | |||
1267 | /* check if we are close to one of the other nodes */ | ||
1268 | canvas_window2world(appdata->map->canvas, x, y, &x, &y); | ||
1269 | node_t *node = appdata->osm->node; | ||
1270 | while(!map->touchnode && node) { | ||
1271 | /* don't highlight the dragged node itself and don't highlight */ | ||
1272 | /* deleted ones */ | ||
1273 | if((node != cur_node) && (!(node->flags & OSM_FLAG_DELETED))) { | ||
1274 | gint nx = x - node->lpos.x; | ||
1275 | gint ny = y - node->lpos.y; | ||
1276 | |||
1277 | if((nx < map->style->node.radius) && (ny < map->style->node.radius) && | ||
1278 | (nx*nx + ny*ny < map->style->node.radius * map->style->node.radius)) | ||
1279 | map_hl_touchnode_draw(map, node); | ||
1280 | } | ||
1281 | node = node->next; | ||
1282 | } | ||
1283 | |||
1284 | /* during way creation also nodes of the new way */ | ||
1285 | /* need to be searched */ | ||
1286 | if(!map->touchnode && map->action.way) { | ||
1287 | node_chain_t *chain = map->action.way->node_chain; | ||
1288 | while(!map->touchnode && chain && chain->next) { | ||
1289 | gint nx = x - chain->node->lpos.x; | ||
1290 | gint ny = y - chain->node->lpos.y; | ||
1291 | |||
1292 | if((nx < map->style->node.radius) && (ny < map->style->node.radius) && | ||
1293 | (nx*nx + ny*ny < map->style->node.radius * map->style->node.radius)) | ||
1294 | map_hl_touchnode_draw(map, chain->node); | ||
1295 | |||
1296 | chain = chain->next; | ||
1297 | } | ||
1298 | } | ||
1299 | } | ||
1300 | |||
1301 | static void map_button_press(map_t *map, gint x, gint y) { | ||
1302 | |||
1303 | printf("left button pressed\n"); | ||
1304 | map->pen_down.is = TRUE; | ||
1305 | |||
1306 | /* save press position */ | ||
1307 | map->pen_down.at.x = x; | ||
1308 | map->pen_down.at.y = y; | ||
1309 | map->pen_down.drag = FALSE; // don't assume drag yet | ||
1310 | |||
1311 | /* determine wether this press was on an item */ | ||
1312 | map->pen_down.on_item = map_real_item_at(map, x, y); | ||
1313 | |||
1314 | /* check if the clicked item is a highlighted node as the user */ | ||
1315 | /* might want to drag that */ | ||
1316 | map->pen_down.on_selected_node = FALSE; | ||
1317 | if(map->pen_down.on_item) | ||
1318 | map->pen_down.on_selected_node = | ||
1319 | map_item_is_selected_node(map, map->pen_down.on_item); | ||
1320 | |||
1321 | /* button press */ | ||
1322 | switch(map->action.type) { | ||
1323 | |||
1324 | case MAP_ACTION_WAY_NODE_ADD: | ||
1325 | map_edit_way_node_add_highlight(map, map->pen_down.on_item, x, y); | ||
1326 | break; | ||
1327 | |||
1328 | case MAP_ACTION_WAY_CUT: | ||
1329 | map_edit_way_cut_highlight(map, map->pen_down.on_item, x, y); | ||
1330 | break; | ||
1331 | |||
1332 | case MAP_ACTION_NODE_ADD: | ||
1333 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); | ||
1334 | break; | ||
1335 | |||
1336 | case MAP_ACTION_WAY_ADD: | ||
1337 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); | ||
1338 | map_touchnode_update(map->appdata, x, y); | ||
1339 | break; | ||
1340 | |||
1341 | default: | ||
1342 | break; | ||
1343 | } | ||
1344 | } | ||
1345 | |||
1346 | /* move the background image (wms data) during wms adjustment */ | ||
1347 | static void map_bg_adjust(map_t *map, gint x, gint y) { | ||
1348 | g_assert(map->appdata); | ||
1349 | g_assert(map->appdata->osm); | ||
1350 | g_assert(map->appdata->osm->bounds); | ||
1351 | |||
1352 | x += map->appdata->osm->bounds->min.x + map->bg.offset.x - | ||
1353 | map->pen_down.at.x; | ||
1354 | y += map->appdata->osm->bounds->min.y + map->bg.offset.y - | ||
1355 | map->pen_down.at.y; | ||
1356 | |||
1357 | canvas_image_move(map->bg.item, x, y, map->bg.scale.x, map->bg.scale.y); | ||
1358 | } | ||
1359 | |||
1360 | static void map_button_release(map_t *map, gint x, gint y) { | ||
1361 | map->pen_down.is = FALSE; | ||
1362 | |||
1363 | /* before button release is handled */ | ||
1364 | switch(map->action.type) { | ||
1365 | case MAP_ACTION_BG_ADJUST: | ||
1366 | map_bg_adjust(map, x, y); | ||
1367 | map->bg.offset.x += x - map->pen_down.at.x; | ||
1368 | map->bg.offset.y += y - map->pen_down.at.y; | ||
1369 | break; | ||
1370 | |||
1371 | case MAP_ACTION_IDLE: | ||
1372 | /* check if distance to press is above drag limit */ | ||
1373 | if(!map->pen_down.drag) | ||
1374 | map->pen_down.drag = distance_above(map, x, y, MAP_DRAG_LIMIT); | ||
1375 | |||
1376 | if(!map->pen_down.drag) { | ||
1377 | printf("left button released after click\n"); | ||
1378 | |||
1379 | map_item_t old_sel = map->selected; | ||
1380 | map_handle_click(map->appdata, map); | ||
1381 | |||
1382 | if((old_sel.type != MAP_TYPE_ILLEGAL) && | ||
1383 | (old_sel.type == map->selected.type) && | ||
1384 | (old_sel.ptr == map->selected.ptr)) { | ||
1385 | printf("re-selected same item of type %d, " | ||
1386 | "pushing it to the bottom\n", old_sel.type); | ||
1387 | |||
1388 | if(!map->selected.item) { | ||
1389 | printf(" item has no visible representation to push\n"); | ||
1390 | } else { | ||
1391 | canvas_item_to_bottom(map->selected.item); | ||
1392 | |||
1393 | /* update clicked item, to correctly handle the click */ | ||
1394 | map->pen_down.on_item = | ||
1395 | map_real_item_at(map, map->pen_down.at.x, map->pen_down.at.y); | ||
1396 | |||
1397 | map_handle_click(map->appdata, map); | ||
1398 | } | ||
1399 | } | ||
1400 | } else { | ||
1401 | printf("left button released after drag\n"); | ||
1402 | |||
1403 | /* just scroll if we didn't drag an selected item */ | ||
1404 | if(!map->pen_down.on_selected_node) | ||
1405 | map_do_scroll(map, x, y); | ||
1406 | else { | ||
1407 | printf("released after dragging node\n"); | ||
1408 | map_hl_cursor_clear(map); | ||
1409 | |||
1410 | /* now actually move the node */ | ||
1411 | map_edit_node_move(map->appdata, map->pen_down.on_item, x, y); | ||
1412 | } | ||
1413 | } | ||
1414 | break; | ||
1415 | |||
1416 | case MAP_ACTION_NODE_ADD: | ||
1417 | printf("released after NODE ADD\n"); | ||
1418 | map_hl_cursor_clear(map); | ||
1419 | |||
1420 | /* convert mouse position to canvas (world) position */ | ||
1421 | canvas_window2world(map->canvas, x, y, &x, &y); | ||
1422 | |||
1423 | node_t *node = NULL; | ||
1424 | if(!osm_position_within_bounds(map->appdata->osm, x, y)) | ||
1425 | map_outside_error(map->appdata); | ||
1426 | else { | ||
1427 | node = osm_node_new(map->appdata->osm, x, y); | ||
1428 | osm_node_attach(map->appdata->osm, node); | ||
1429 | map_node_draw(map, node); | ||
1430 | } | ||
1431 | map_action_set(map->appdata, MAP_ACTION_IDLE); | ||
1432 | |||
1433 | map_item_deselect(map->appdata); | ||
1434 | |||
1435 | if(node) { | ||
1436 | map_node_select(map->appdata, node); | ||
1437 | |||
1438 | /* let the user specify some tags for the new node */ | ||
1439 | info_dialog(GTK_WIDGET(map->appdata->window), map->appdata, NULL); | ||
1440 | } | ||
1441 | break; | ||
1442 | |||
1443 | case MAP_ACTION_WAY_ADD: | ||
1444 | printf("released after WAY ADD\n"); | ||
1445 | map_hl_cursor_clear(map); | ||
1446 | |||
1447 | map_edit_way_add_segment(map, x, y); | ||
1448 | break; | ||
1449 | |||
1450 | case MAP_ACTION_WAY_NODE_ADD: | ||
1451 | printf("released after WAY NODE ADD\n"); | ||
1452 | map_hl_cursor_clear(map); | ||
1453 | |||
1454 | map_edit_way_node_add(map, x, y); | ||
1455 | break; | ||
1456 | |||
1457 | case MAP_ACTION_WAY_CUT: | ||
1458 | printf("released after WAY CUT\n"); | ||
1459 | map_hl_cursor_clear(map); | ||
1460 | |||
1461 | map_edit_way_cut(map, x, y); | ||
1462 | break; | ||
1463 | |||
1464 | |||
1465 | default: | ||
1466 | break; | ||
1467 | } | ||
1468 | } | ||
1469 | |||
1470 | static gboolean map_button_event(GtkWidget *widget, GdkEventButton *event, | ||
1471 | gpointer data) { | ||
1472 | appdata_t *appdata = (appdata_t*)data; | ||
1473 | map_t *map = appdata->map; | ||
1474 | |||
1475 | if(!appdata->osm) return FALSE; | ||
1476 | |||
1477 | if(event->button == 1) { | ||
1478 | gint x = event->x, y = event->y; | ||
1479 | |||
1480 | if(event->type == GDK_BUTTON_PRESS) | ||
1481 | map_button_press(map, x, y); | ||
1482 | |||
1483 | if(event->type == GDK_BUTTON_RELEASE) | ||
1484 | map_button_release(map, x, y); | ||
1485 | } | ||
1486 | |||
1487 | return FALSE; /* forward to further processing */ | ||
1488 | } | ||
1489 | |||
1490 | static gboolean map_motion_notify_event(GtkWidget *widget, | ||
1491 | GdkEventMotion *event, gpointer data) { | ||
1492 | appdata_t *appdata = (appdata_t*)data; | ||
1493 | map_t *map = appdata->map; | ||
1494 | gint x, y; | ||
1495 | GdkModifierType state; | ||
1496 | |||
1497 | if(!appdata->osm) return FALSE; | ||
1498 | |||
1499 | #ifdef USE_HILDON | ||
1500 | /* reduce update frequency on hildon to keep screen update fluid */ | ||
1501 | static guint32 last_time = 0; | ||
1502 | |||
1503 | harbaum | 24 | if(event->time - last_time < 250) return FALSE; |
1504 | harbaum | 1 | last_time = event->time; |
1505 | #endif | ||
1506 | |||
1507 | if(!map->pen_down.is) | ||
1508 | return FALSE; | ||
1509 | |||
1510 | harbaum | 78 | #ifndef USE_GOOCANVAS |
1511 | harbaum | 1 | /* handle hints, hints are handled by goocanvas directly */ |
1512 | if(event->is_hint) | ||
1513 | gdk_window_get_pointer(event->window, &x, &y, &state); | ||
1514 | else | ||
1515 | #endif | ||
1516 | { | ||
1517 | x = event->x; | ||
1518 | y = event->y; | ||
1519 | state = event->state; | ||
1520 | } | ||
1521 | |||
1522 | /* check if distance to press is above drag limit */ | ||
1523 | if(!map->pen_down.drag) | ||
1524 | map->pen_down.drag = distance_above(map, x, y, MAP_DRAG_LIMIT); | ||
1525 | |||
1526 | /* drag */ | ||
1527 | switch(map->action.type) { | ||
1528 | case MAP_ACTION_BG_ADJUST: | ||
1529 | map_bg_adjust(map, x, y); | ||
1530 | break; | ||
1531 | |||
1532 | case MAP_ACTION_IDLE: | ||
1533 | if(map->pen_down.drag) { | ||
1534 | /* just scroll if we didn't drag an selected item */ | ||
1535 | if(!map->pen_down.on_selected_node) | ||
1536 | map_do_scroll(map, x, y); | ||
1537 | else { | ||
1538 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); | ||
1539 | map_touchnode_update(appdata, x, y); | ||
1540 | } | ||
1541 | } | ||
1542 | break; | ||
1543 | |||
1544 | case MAP_ACTION_NODE_ADD: | ||
1545 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); | ||
1546 | break; | ||
1547 | harbaum | 15 | |
1548 | harbaum | 1 | case MAP_ACTION_WAY_ADD: |
1549 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); | ||
1550 | map_touchnode_update(appdata, x, y); | ||
1551 | break; | ||
1552 | |||
1553 | case MAP_ACTION_WAY_NODE_ADD: | ||
1554 | map_hl_cursor_clear(map); | ||
1555 | harbaum | 15 | map_item_t *item = map_real_item_at(map, x, y); |
1556 | harbaum | 1 | if(item) map_edit_way_node_add_highlight(map, item, x, y); |
1557 | break; | ||
1558 | |||
1559 | case MAP_ACTION_WAY_CUT: | ||
1560 | map_hl_cursor_clear(map); | ||
1561 | harbaum | 15 | item = map_real_item_at(map, x, y); |
1562 | harbaum | 1 | if(item) map_edit_way_cut_highlight(map, item, x, y); |
1563 | break; | ||
1564 | |||
1565 | default: | ||
1566 | break; | ||
1567 | } | ||
1568 | |||
1569 | |||
1570 | return FALSE; /* forward to further processing */ | ||
1571 | } | ||
1572 | |||
1573 | gboolean map_key_press_event(appdata_t *appdata, GdkEventKey *event) { | ||
1574 | |||
1575 | if(!appdata->osm) return FALSE; | ||
1576 | |||
1577 | /* map needs to be there to handle buttons */ | ||
1578 | if(!appdata->map->canvas) | ||
1579 | return FALSE; | ||
1580 | |||
1581 | if(event->type == GDK_KEY_PRESS) { | ||
1582 | gdouble zoom = 0; | ||
1583 | switch(event->keyval) { | ||
1584 | |||
1585 | case GDK_Left: | ||
1586 | map_do_scroll_step(appdata->map, -50, 0); | ||
1587 | break; | ||
1588 | |||
1589 | case GDK_Right: | ||
1590 | map_do_scroll_step(appdata->map, +50, 0); | ||
1591 | break; | ||
1592 | |||
1593 | case GDK_Up: | ||
1594 | map_do_scroll_step(appdata->map, 0, -50); | ||
1595 | break; | ||
1596 | |||
1597 | case GDK_Down: | ||
1598 | map_do_scroll_step(appdata->map, 0, +50); | ||
1599 | break; | ||
1600 | |||
1601 | case GDK_Return: // same as HILDON_HARDKEY_SELECT | ||
1602 | /* if the ok button is enabled, call its function */ | ||
1603 | if(GTK_WIDGET_FLAGS(appdata->iconbar->ok) & GTK_SENSITIVE) | ||
1604 | map_action_ok(appdata); | ||
1605 | /* otherwise if info is enabled call that */ | ||
1606 | else if(GTK_WIDGET_FLAGS(appdata->iconbar->info) & GTK_SENSITIVE) | ||
1607 | info_dialog(GTK_WIDGET(appdata->window), appdata, NULL); | ||
1608 | break; | ||
1609 | |||
1610 | case GDK_Escape: // same as HILDON_HARDKEY_ESC | ||
1611 | /* if the cancel button is enabled, call its function */ | ||
1612 | if(GTK_WIDGET_FLAGS(appdata->iconbar->cancel) & GTK_SENSITIVE) | ||
1613 | map_action_cancel(appdata); | ||
1614 | break; | ||
1615 | |||
1616 | #ifdef USE_HILDON | ||
1617 | case HILDON_HARDKEY_INCREASE: | ||
1618 | #else | ||
1619 | case '+': | ||
1620 | #endif | ||
1621 | zoom = appdata->map->state->zoom; | ||
1622 | zoom *= ZOOM_FACTOR_BUTTON; | ||
1623 | map_set_zoom(appdata->map, zoom, TRUE); | ||
1624 | printf("zoom is now %f (1:%d)\n", zoom, (int)zoom_to_scaledn(zoom)); | ||
1625 | return TRUE; | ||
1626 | break; | ||
1627 | |||
1628 | #ifdef USE_HILDON | ||
1629 | case HILDON_HARDKEY_DECREASE: | ||
1630 | #else | ||
1631 | case '-': | ||
1632 | #endif | ||
1633 | zoom = appdata->map->state->zoom; | ||
1634 | zoom /= ZOOM_FACTOR_BUTTON; | ||
1635 | map_set_zoom(appdata->map, zoom, TRUE); | ||
1636 | printf("zoom is now %f (1:%d)\n", zoom, (int)zoom_to_scaledn(zoom)); | ||
1637 | return TRUE; | ||
1638 | break; | ||
1639 | |||
1640 | default: | ||
1641 | printf("key event %d\n", event->keyval); | ||
1642 | break; | ||
1643 | } | ||
1644 | } | ||
1645 | return FALSE; | ||
1646 | } | ||
1647 | |||
1648 | GtkWidget *map_new(appdata_t *appdata) { | ||
1649 | map_t *map = appdata->map = g_new0(map_t, 1); | ||
1650 | |||
1651 | map->style = style_load(appdata, appdata->settings->style); | ||
1652 | harbaum | 22 | if(!map->style) { |
1653 | errorf(NULL, _("Unable to load valid style, terminating.")); | ||
1654 | g_free(map); | ||
1655 | return NULL; | ||
1656 | } | ||
1657 | harbaum | 1 | |
1658 | if(appdata->project && appdata->project->map_state) { | ||
1659 | printf("Using projects map state\n"); | ||
1660 | map->state = appdata->project->map_state; | ||
1661 | } else { | ||
1662 | printf("Creating new map state\n"); | ||
1663 | map->state = g_new0(map_state_t, 1); | ||
1664 | map->state->zoom = 0.25; | ||
1665 | } | ||
1666 | |||
1667 | map->state->refcount++; | ||
1668 | |||
1669 | map->pen_down.at.x = -1; | ||
1670 | map->pen_down.at.y = -1; | ||
1671 | map->appdata = appdata; | ||
1672 | map->action.type = MAP_ACTION_IDLE; | ||
1673 | |||
1674 | harbaum | 103 | map->canvas = canvas_new(map->style->background.color); |
1675 | canvas_set_antialias(map->canvas, !appdata->settings->no_antialias); | ||
1676 | harbaum | 1 | |
1677 | harbaum | 103 | GtkWidget *canvas_widget = canvas_get_widget(map->canvas); |
1678 | harbaum | 1 | |
1679 | harbaum | 103 | gtk_widget_set_events(canvas_widget, |
1680 | harbaum | 1 | GDK_BUTTON_PRESS_MASK |
1681 | | GDK_BUTTON_RELEASE_MASK | ||
1682 | | GDK_SCROLL_MASK | ||
1683 | | GDK_POINTER_MOTION_MASK | ||
1684 | | GDK_POINTER_MOTION_HINT_MASK); | ||
1685 | |||
1686 | harbaum | 103 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1687 | harbaum | 1 | "button_press_event", G_CALLBACK(map_button_event), appdata); |
1688 | harbaum | 103 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1689 | harbaum | 1 | "button_release_event", G_CALLBACK(map_button_event), appdata); |
1690 | harbaum | 103 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1691 | harbaum | 1 | "motion_notify_event", G_CALLBACK(map_motion_notify_event), appdata); |
1692 | harbaum | 103 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1693 | harbaum | 1 | "scroll_event", G_CALLBACK(map_scroll_event), appdata); |
1694 | |||
1695 | harbaum | 103 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1696 | harbaum | 1 | "destroy", G_CALLBACK(map_destroy_event), appdata); |
1697 | |||
1698 | harbaum | 103 | return canvas_widget; |
1699 | harbaum | 1 | } |
1700 | |||
1701 | void map_init(appdata_t *appdata) { | ||
1702 | map_t *map = appdata->map; | ||
1703 | |||
1704 | /* set initial zoom */ | ||
1705 | map_set_zoom(map, map->state->zoom, FALSE); | ||
1706 | josm_elemstyles_colorize_world(map->style, appdata->osm); | ||
1707 | |||
1708 | map_draw(map, appdata->osm); | ||
1709 | |||
1710 | float mult = appdata->map->style->frisket.mult; | ||
1711 | canvas_set_bounds(map->canvas, | ||
1712 | mult*appdata->osm->bounds->min.x, | ||
1713 | mult*appdata->osm->bounds->min.y, | ||
1714 | mult*appdata->osm->bounds->max.x, | ||
1715 | mult*appdata->osm->bounds->max.y); | ||
1716 | |||
1717 | harbaum | 103 | printf("restore scroll position %d/%d\n", |
1718 | harbaum | 1 | map->state->scroll_offset.x, map->state->scroll_offset.y); |
1719 | |||
1720 | harbaum | 103 | map_limit_scroll(map, CANVAS_UNIT_METER, |
1721 | &map->state->scroll_offset.x, &map->state->scroll_offset.y); | ||
1722 | canvas_scroll_to(map->canvas, CANVAS_UNIT_METER, | ||
1723 | map->state->scroll_offset.x, map->state->scroll_offset.y); | ||
1724 | harbaum | 1 | } |
1725 | |||
1726 | |||
1727 | void map_item_set_flags(map_item_t *map_item, int set, int clr) { | ||
1728 | |||
1729 | switch(map_item->type) { | ||
1730 | case MAP_TYPE_NODE: | ||
1731 | map_item->node->flags |= set; | ||
1732 | map_item->node->flags &= ~clr; | ||
1733 | break; | ||
1734 | |||
1735 | case MAP_TYPE_WAY: | ||
1736 | map_item->way->flags |= set; | ||
1737 | map_item->way->flags &= ~clr; | ||
1738 | break; | ||
1739 | |||
1740 | default: | ||
1741 | g_assert(0); | ||
1742 | break; | ||
1743 | } | ||
1744 | } | ||
1745 | |||
1746 | harbaum | 103 | void map_clear(appdata_t *appdata, gint group_mask) { |
1747 | harbaum | 1 | map_t *map = appdata->map; |
1748 | |||
1749 | printf("freeing map contents\n"); | ||
1750 | |||
1751 | map_free_map_item_chains(appdata); | ||
1752 | |||
1753 | /* remove a possibly existing highlight */ | ||
1754 | map_item_deselect(appdata); | ||
1755 | |||
1756 | harbaum | 103 | canvas_erase(map->canvas, group_mask); |
1757 | harbaum | 1 | } |
1758 | |||
1759 | void map_paint(appdata_t *appdata) { | ||
1760 | map_t *map = appdata->map; | ||
1761 | |||
1762 | harbaum | 78 | /* user may have changed antialias settings */ |
1763 | harbaum | 103 | canvas_set_antialias(map->canvas, !appdata->settings->no_antialias); |
1764 | harbaum | 24 | |
1765 | harbaum | 1 | josm_elemstyles_colorize_world(map->style, appdata->osm); |
1766 | map_draw(map, appdata->osm); | ||
1767 | } | ||
1768 | |||
1769 | /* called from several icons like e.g. "node_add" */ | ||
1770 | void map_action_set(appdata_t *appdata, map_action_t action) { | ||
1771 | printf("map action set to %d\n", action); | ||
1772 | |||
1773 | appdata->map->action.type = action; | ||
1774 | |||
1775 | /* enable/disable ok/cancel buttons */ | ||
1776 | // MAP_ACTION_IDLE=0, NODE_ADD, BG_ADJUST, WAY_ADD, WAY_NODE_ADD, WAY_CUT | ||
1777 | const gboolean ok_state[] = { FALSE, FALSE, TRUE, FALSE, FALSE, FALSE }; | ||
1778 | const gboolean cancel_state[] = { FALSE, TRUE, TRUE, TRUE, TRUE, TRUE }; | ||
1779 | |||
1780 | g_assert(MAP_ACTION_NUM == sizeof(ok_state)/sizeof(gboolean)); | ||
1781 | g_assert(action < sizeof(ok_state)/sizeof(gboolean)); | ||
1782 | |||
1783 | icon_bar_map_cancel_ok(appdata, cancel_state[action], ok_state[action]); | ||
1784 | |||
1785 | switch(action) { | ||
1786 | case MAP_ACTION_BG_ADJUST: | ||
1787 | /* an existing selection only causes confusion ... */ | ||
1788 | map_item_deselect(appdata); | ||
1789 | break; | ||
1790 | |||
1791 | case MAP_ACTION_WAY_ADD: | ||
1792 | printf("starting new way\n"); | ||
1793 | |||
1794 | /* remember if there was a way selected */ | ||
1795 | way_t *way_sel = NULL; | ||
1796 | if(appdata->map->selected.type == MAP_TYPE_WAY) | ||
1797 | way_sel = appdata->map->selected.way; | ||
1798 | |||
1799 | map_item_deselect(appdata); | ||
1800 | map_edit_way_add_begin(appdata->map, way_sel); | ||
1801 | break; | ||
1802 | |||
1803 | case MAP_ACTION_NODE_ADD: | ||
1804 | map_item_deselect(appdata); | ||
1805 | break; | ||
1806 | |||
1807 | default: | ||
1808 | break; | ||
1809 | } | ||
1810 | |||
1811 | icon_bar_map_action_idle(appdata, action == MAP_ACTION_IDLE); | ||
1812 | gtk_widget_set_sensitive(appdata->menu_item_wms_adjust, | ||
1813 | action == MAP_ACTION_IDLE); | ||
1814 | |||
1815 | const char *str_state[] = { | ||
1816 | NULL, | ||
1817 | _("Place a node"), | ||
1818 | _("Adjust background image position"), | ||
1819 | _("Place first node of new way"), | ||
1820 | _("Place node on selected way"), | ||
1821 | _("Select segment to cut way"), | ||
1822 | }; | ||
1823 | |||
1824 | g_assert(MAP_ACTION_NUM == sizeof(str_state)/sizeof(char*)); | ||
1825 | |||
1826 | statusbar_set(appdata, str_state[action], FALSE); | ||
1827 | } | ||
1828 | |||
1829 | |||
1830 | void map_action_cancel(appdata_t *appdata) { | ||
1831 | map_t *map = appdata->map; | ||
1832 | |||
1833 | switch(map->action.type) { | ||
1834 | case MAP_ACTION_WAY_ADD: | ||
1835 | map_edit_way_add_cancel(map); | ||
1836 | break; | ||
1837 | |||
1838 | case MAP_ACTION_BG_ADJUST: | ||
1839 | /* undo all changes to bg_offset */ | ||
1840 | map->bg.offset.x = appdata->project->wms_offset.x; | ||
1841 | map->bg.offset.y = appdata->project->wms_offset.y; | ||
1842 | |||
1843 | gint x = appdata->osm->bounds->min.x + map->bg.offset.x; | ||
1844 | gint y = appdata->osm->bounds->min.y + map->bg.offset.y; | ||
1845 | canvas_image_move(map->bg.item, x, y, map->bg.scale.x, map->bg.scale.y); | ||
1846 | break; | ||
1847 | |||
1848 | default: | ||
1849 | break; | ||
1850 | } | ||
1851 | |||
1852 | map_action_set(appdata, MAP_ACTION_IDLE); | ||
1853 | } | ||
1854 | |||
1855 | void map_action_ok(appdata_t *appdata) { | ||
1856 | map_t *map = appdata->map; | ||
1857 | |||
1858 | /* reset action now as this erases the statusbar and some */ | ||
1859 | /* of the actions may set it */ | ||
1860 | map_action_t type = map->action.type; | ||
1861 | map_action_set(appdata, MAP_ACTION_IDLE); | ||
1862 | |||
1863 | switch(type) { | ||
1864 | case MAP_ACTION_WAY_ADD: | ||
1865 | map_edit_way_add_ok(map); | ||
1866 | break; | ||
1867 | |||
1868 | case MAP_ACTION_BG_ADJUST: | ||
1869 | /* save changes to bg_offset in project */ | ||
1870 | appdata->project->wms_offset.x = map->bg.offset.x; | ||
1871 | appdata->project->wms_offset.y = map->bg.offset.y; | ||
1872 | appdata->project->dirty = TRUE; | ||
1873 | break; | ||
1874 | |||
1875 | default: | ||
1876 | break; | ||
1877 | } | ||
1878 | } | ||
1879 | |||
1880 | /* called from icon "trash" */ | ||
1881 | void map_delete_selected(appdata_t *appdata) { | ||
1882 | map_t *map = appdata->map; | ||
1883 | |||
1884 | if(!yes_no_f(GTK_WIDGET(appdata->window), | ||
1885 | appdata, MISC_AGAIN_ID_DELETE, MISC_AGAIN_FLAG_DONT_SAVE_NO, | ||
1886 | _("Delete selected object?"), | ||
1887 | _("Do you really want to delete the selected object?"))) | ||
1888 | return; | ||
1889 | |||
1890 | /* work on local copy since de-selecting destroys the selection */ | ||
1891 | map_item_t item = map->selected; | ||
1892 | |||
1893 | /* deleting the selected item de-selects it ... */ | ||
1894 | map_item_deselect(appdata); | ||
1895 | |||
1896 | harbaum | 54 | undo_remember_delete(appdata, item.type, item.ptr); |
1897 | |||
1898 | harbaum | 1 | switch(item.type) { |
1899 | case MAP_TYPE_NODE: | ||
1900 | printf("request to delete node #%ld\n", item.node->id); | ||
1901 | |||
1902 | /* check if this node is part of a way with two nodes only. */ | ||
1903 | /* we cannot delete this as this would also delete the way */ | ||
1904 | way_chain_t *way_chain = osm_node_to_way(appdata->osm, item.node); | ||
1905 | if(way_chain) { | ||
1906 | gboolean short_way = FALSE; | ||
1907 | |||
1908 | /* free the chain of ways */ | ||
1909 | while(way_chain && !short_way) { | ||
1910 | way_chain_t *next = way_chain->next; | ||
1911 | |||
1912 | if(osm_way_number_of_nodes(way_chain->way) <= 2) | ||
1913 | short_way = TRUE; | ||
1914 | |||
1915 | g_free(way_chain); | ||
1916 | way_chain = next; | ||
1917 | } | ||
1918 | |||
1919 | if(short_way) { | ||
1920 | if(!yes_no_f(GTK_WIDGET(appdata->window), NULL, 0, 0, | ||
1921 | _("Delete node in short way(s)?"), | ||
1922 | _("Deleting this node will also delete one or more ways " | ||
1923 | "since they'll contain only one node afterwards. " | ||
1924 | "Do you really want this?"))) | ||
1925 | return; | ||
1926 | } | ||
1927 | } | ||
1928 | |||
1929 | /* remove it visually from the screen */ | ||
1930 | map_item_chain_destroy(&item.node->map_item_chain); | ||
1931 | |||
1932 | /* and mark it "deleted" in the database */ | ||
1933 | osm_node_remove_from_relation(appdata->osm, item.node); | ||
1934 | way_chain_t *chain = osm_node_delete(appdata->osm, | ||
1935 | &appdata->icon, item.node, FALSE, TRUE); | ||
1936 | |||
1937 | /* redraw all affected ways */ | ||
1938 | while(chain) { | ||
1939 | way_chain_t *next = chain->next; | ||
1940 | |||
1941 | if(osm_way_number_of_nodes(chain->way) == 1) { | ||
1942 | /* this way now only contains one node and thus isn't a valid */ | ||
1943 | /* way anymore. So it'll also get deleted (which in turn may */ | ||
1944 | /* cause other nodes to be deleted as well) */ | ||
1945 | map_way_delete(appdata, chain->way); | ||
1946 | } else { | ||
1947 | map_item_t item; | ||
1948 | item.type = MAP_TYPE_WAY; | ||
1949 | item.way = chain->way; | ||
1950 | map_item_redraw(appdata, &item); | ||
1951 | } | ||
1952 | |||
1953 | g_free(chain); | ||
1954 | |||
1955 | chain = next; | ||
1956 | } | ||
1957 | |||
1958 | break; | ||
1959 | |||
1960 | case MAP_TYPE_WAY: | ||
1961 | printf("request to delete way #%ld\n", item.way->id); | ||
1962 | map_way_delete(appdata, item.way); | ||
1963 | break; | ||
1964 | |||
1965 | default: | ||
1966 | g_assert((item.type == MAP_TYPE_NODE) || | ||
1967 | (item.type == MAP_TYPE_WAY)); | ||
1968 | break; | ||
1969 | } | ||
1970 | } | ||
1971 | |||
1972 | /* ----------------------- track related stuff ----------------------- */ | ||
1973 | |||
1974 | void map_track_draw_seg(map_t *map, track_seg_t *seg) { | ||
1975 | /* a track_seg needs at least 2 points to be drawn */ | ||
1976 | guint pnum = track_seg_points(seg); | ||
1977 | printf("seg of length %d\n", pnum); | ||
1978 | |||
1979 | if(pnum == 1) { | ||
1980 | g_assert(!seg->item); | ||
1981 | |||
1982 | harbaum | 103 | seg->item = canvas_circle_new(map->canvas, CANVAS_GROUP_TRACK, |
1983 | harbaum | 1 | seg->track_point->lpos.x, seg->track_point->lpos.y, |
1984 | map->style->track.width/2.0, 0, map->style->track.color, NO_COLOR); | ||
1985 | } | ||
1986 | |||
1987 | if(pnum > 1) { | ||
1988 | |||
1989 | /* allocate space for nodes */ | ||
1990 | canvas_points_t *points = canvas_points_new(pnum); | ||
1991 | |||
1992 | int point = 0; | ||
1993 | track_point_t *track_point = seg->track_point; | ||
1994 | while(track_point) { | ||
1995 | points->coords[point++] = track_point->lpos.x; | ||
1996 | points->coords[point++] = track_point->lpos.y; | ||
1997 | track_point = track_point->next; | ||
1998 | } | ||
1999 | |||
2000 | /* there may be a circle (one point line) */ | ||
2001 | if(seg->item) | ||
2002 | canvas_item_destroy(seg->item); | ||
2003 | |||
2004 | harbaum | 103 | seg->item = canvas_polyline_new(map->canvas, CANVAS_GROUP_TRACK, |
2005 | harbaum | 1 | points, map->style->track.width, map->style->track.color); |
2006 | |||
2007 | canvas_points_free(points); | ||
2008 | } | ||
2009 | } | ||
2010 | |||
2011 | void map_track_update_seg(map_t *map, track_seg_t *seg) { | ||
2012 | /* a track_seg needs at least 2 points to be drawn */ | ||
2013 | guint pnum = track_seg_points(seg); | ||
2014 | printf("seg of length %d\n", pnum); | ||
2015 | |||
2016 | if(pnum > 1) { | ||
2017 | |||
2018 | /* allocate space for nodes */ | ||
2019 | canvas_points_t *points = canvas_points_new(pnum); | ||
2020 | |||
2021 | int point = 0; | ||
2022 | track_point_t *track_point = seg->track_point; | ||
2023 | while(track_point) { | ||
2024 | canvas_point_set_pos(points, point++, &track_point->lpos); | ||
2025 | track_point = track_point->next; | ||
2026 | } | ||
2027 | |||
2028 | g_assert(seg->item); | ||
2029 | canvas_item_set_points(seg->item, points); | ||
2030 | canvas_points_free(points); | ||
2031 | } | ||
2032 | } | ||
2033 | |||
2034 | void map_track_draw(map_t *map, track_t *track) { | ||
2035 | track_seg_t *seg = track->track_seg; | ||
2036 | |||
2037 | /* draw all segments */ | ||
2038 | while(seg) { | ||
2039 | map_track_draw_seg(map, seg); | ||
2040 | seg = seg->next; | ||
2041 | } | ||
2042 | } | ||
2043 | |||
2044 | void map_track_remove(appdata_t *appdata) { | ||
2045 | track_t *track = appdata->track.track; | ||
2046 | |||
2047 | printf("removing track\n"); | ||
2048 | |||
2049 | g_assert(track); | ||
2050 | |||
2051 | /* remove all segments */ | ||
2052 | track_seg_t *seg = track->track_seg; | ||
2053 | while(seg) { | ||
2054 | if(seg->item) { | ||
2055 | canvas_item_destroy(seg->item); | ||
2056 | seg->item = NULL; | ||
2057 | } | ||
2058 | |||
2059 | seg = seg->next; | ||
2060 | } | ||
2061 | } | ||
2062 | |||
2063 | void map_track_pos(appdata_t *appdata, lpos_t *lpos) { | ||
2064 | if(appdata->track.gps_item) { | ||
2065 | canvas_item_destroy(appdata->track.gps_item); | ||
2066 | appdata->track.gps_item = NULL; | ||
2067 | } | ||
2068 | |||
2069 | if(lpos) | ||
2070 | harbaum | 103 | appdata->track.gps_item = |
2071 | canvas_circle_new(appdata->map->canvas, CANVAS_GROUP_GPS, | ||
2072 | harbaum | 1 | lpos->x, lpos->y, appdata->map->style->track.width/2.0, 0, |
2073 | harbaum | 22 | appdata->map->style->track.gps_color, NO_COLOR); |
2074 | harbaum | 1 | } |
2075 | |||
2076 | /* ------------------- map background ------------------ */ | ||
2077 | |||
2078 | void map_remove_bg_image(map_t *map) { | ||
2079 | if(!map) return; | ||
2080 | |||
2081 | if(map->bg.item) { | ||
2082 | canvas_item_destroy(map->bg.item); | ||
2083 | map->bg.item = NULL; | ||
2084 | } | ||
2085 | } | ||
2086 | |||
2087 | static gint map_bg_item_destroy_event(GtkWidget *widget, gpointer data) { | ||
2088 | map_t *map = (map_t*)data; | ||
2089 | |||
2090 | /* destroying background item */ | ||
2091 | |||
2092 | map->bg.item = NULL; | ||
2093 | if(map->bg.pix) { | ||
2094 | printf("destroying background item\n"); | ||
2095 | gdk_pixbuf_unref(map->bg.pix); | ||
2096 | map->bg.pix = NULL; | ||
2097 | } | ||
2098 | return FALSE; | ||
2099 | } | ||
2100 | |||
2101 | void map_set_bg_image(map_t *map, char *filename) { | ||
2102 | bounds_t *bounds = map->appdata->osm->bounds; | ||
2103 | |||
2104 | map_remove_bg_image(map); | ||
2105 | |||
2106 | map->bg.pix = gdk_pixbuf_new_from_file(filename, NULL); | ||
2107 | |||
2108 | /* calculate required scale factor */ | ||
2109 | map->bg.scale.x = (float)(bounds->max.x - bounds->min.x)/ | ||
2110 | (float)gdk_pixbuf_get_width(map->bg.pix); | ||
2111 | map->bg.scale.y = (float)(bounds->max.y - bounds->min.y)/ | ||
2112 | (float)gdk_pixbuf_get_height(map->bg.pix); | ||
2113 | |||
2114 | harbaum | 103 | map->bg.item = canvas_image_new(map->canvas, CANVAS_GROUP_BG, map->bg.pix, |
2115 | harbaum | 1 | bounds->min.x, bounds->min.y, map->bg.scale.x, map->bg.scale.y); |
2116 | |||
2117 | canvas_item_destroy_connect(map->bg.item, | ||
2118 | G_CALLBACK(map_bg_item_destroy_event), map); | ||
2119 | } | ||
2120 | |||
2121 | |||
2122 | /* -------- hide and show objects (for performance reasons) ------- */ | ||
2123 | |||
2124 | void map_hide_selected(appdata_t *appdata) { | ||
2125 | map_t *map = appdata->map; | ||
2126 | if(!map) return; | ||
2127 | |||
2128 | if(map->selected.type != MAP_TYPE_WAY) { | ||
2129 | printf("selected item is not a way\n"); | ||
2130 | return; | ||
2131 | } | ||
2132 | |||
2133 | way_t *way = map->selected.way; | ||
2134 | printf("hiding way #%ld\n", way->id); | ||
2135 | |||
2136 | map_item_deselect(appdata); | ||
2137 | way->flags |= OSM_FLAG_HIDDEN; | ||
2138 | map_item_chain_destroy(&way->map_item_chain); | ||
2139 | |||
2140 | gtk_widget_set_sensitive(appdata->menu_item_map_show_all, TRUE); | ||
2141 | } | ||
2142 | |||
2143 | void map_show_all(appdata_t *appdata) { | ||
2144 | map_t *map = appdata->map; | ||
2145 | if(!map) return; | ||
2146 | |||
2147 | way_t *way = appdata->osm->way; | ||
2148 | while(way) { | ||
2149 | if(way->flags & OSM_FLAG_HIDDEN) { | ||
2150 | way->flags &= ~OSM_FLAG_HIDDEN; | ||
2151 | map_way_draw(map, way); | ||
2152 | } | ||
2153 | |||
2154 | way = way->next; | ||
2155 | } | ||
2156 | |||
2157 | gtk_widget_set_sensitive(appdata->menu_item_map_show_all, FALSE); | ||
2158 | } | ||
2159 | achadwick | 13 | // vim:et:ts=8:sw=2:sts=2:ai |