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Detail level adjustments
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 | harbaum | 154 | switch(map_item->object.type) { |
34 | case NODE: | ||
35 | harbaum | 1 | item_str = "Node"; |
36 | harbaum | 154 | id = map_item->object.node->id; |
37 | tag = map_item->object.node->tag; | ||
38 | harbaum | 1 | break; |
39 | |||
40 | harbaum | 154 | case WAY: |
41 | harbaum | 1 | item_str = "Way"; |
42 | harbaum | 154 | id = map_item->object.way->id; |
43 | tag = map_item->object.way->tag; | ||
44 | harbaum | 1 | break; |
45 | |||
46 | harbaum | 154 | case RELATION: |
47 | harbaum | 153 | item_str = "Relation"; |
48 | harbaum | 154 | id = map_item->object.relation->id; |
49 | tag = map_item->object.relation->tag; | ||
50 | harbaum | 153 | break; |
51 | |||
52 | harbaum | 1 | default: |
53 | break; | ||
54 | } | ||
55 | |||
56 | gboolean collision = FALSE; | ||
57 | tag_t *tags = tag; | ||
58 | |||
59 | if(id == ID_ILLEGAL) | ||
60 | str = g_strdup_printf(_("Unknown item")); | ||
61 | else { | ||
62 | harbaum | 161 | str = g_strdup_printf("%s #" ITEM_ID_FORMAT, item_str, id); |
63 | harbaum | 1 | |
64 | /* add some tags ... */ | ||
65 | achadwick | 28 | /* |
66 | * XXX Should we just try to present only the name or the ref (or the | ||
67 | * alt_name, old_name, whatever) here? Hurling a load of tags in the | ||
68 | * user's face in some unpredictable, uninformative order isn't very | ||
69 | * friendly. | ||
70 | * | ||
71 | * Actually, a tag_short_desc() function would be useful in dialogs | ||
72 | * nd user messages too. | ||
73 | */ | ||
74 | harbaum | 1 | while(tag) { |
75 | if(!collision && info_tag_key_collision(tags, tag)) | ||
76 | collision = TRUE; | ||
77 | |||
78 | /* we don't have much space, so ignore created_by tag */ | ||
79 | if(!osm_is_creator_tag(tag)) { | ||
80 | char *old = str; | ||
81 | str = g_strdup_printf("%s, %s=%s", old, tag->key, tag->value); | ||
82 | g_free(old); | ||
83 | } | ||
84 | tag = tag->next; | ||
85 | } | ||
86 | } | ||
87 | |||
88 | statusbar_set(map->appdata, str, collision); | ||
89 | g_free(str); | ||
90 | } | ||
91 | |||
92 | void map_outside_error(appdata_t *appdata) { | ||
93 | errorf(GTK_WIDGET(appdata->window), | ||
94 | _("Items must not be placed outside the working area!")); | ||
95 | } | ||
96 | |||
97 | void map_item_chain_destroy(map_item_chain_t **chainP) { | ||
98 | if(!*chainP) { | ||
99 | printf("nothing to destroy!\n"); | ||
100 | return; | ||
101 | } | ||
102 | |||
103 | #ifdef DESTROY_WAIT_FOR_GTK | ||
104 | map_item_chain_t *chain = *chainP; | ||
105 | while(chain) { | ||
106 | map_item_chain_t *next = chain->next; | ||
107 | canvas_item_destroy(chain->map_item->item); | ||
108 | chain = next; | ||
109 | } | ||
110 | |||
111 | /* wait until gtks event handling has actually destroyed this item */ | ||
112 | printf("waiting for item destruction "); | ||
113 | while(gtk_events_pending() || *chainP) { | ||
114 | putchar('.'); | ||
115 | gtk_main_iteration(); | ||
116 | } | ||
117 | printf(" ok\n"); | ||
118 | |||
119 | /* the callback routine connected to this item should have been */ | ||
120 | /* called by now and it has set the chain to NULL */ | ||
121 | |||
122 | #else | ||
123 | map_item_chain_t *chain = *chainP; | ||
124 | while(chain) { | ||
125 | map_item_chain_t *next = chain->next; | ||
126 | canvas_item_destroy(chain->map_item->item); | ||
127 | |||
128 | g_free(chain); | ||
129 | chain = next; | ||
130 | } | ||
131 | *chainP = NULL; | ||
132 | #endif | ||
133 | } | ||
134 | |||
135 | static void map_node_select(appdata_t *appdata, node_t *node) { | ||
136 | map_t *map = appdata->map; | ||
137 | map_item_t *map_item = &map->selected; | ||
138 | |||
139 | g_assert(!map->highlight); | ||
140 | |||
141 | harbaum | 154 | map_item->object.type = NODE; |
142 | map_item->object.node = node; | ||
143 | harbaum | 1 | map_item->highlight = FALSE; |
144 | |||
145 | /* node may not have any visible representation at all */ | ||
146 | if(node->map_item_chain) | ||
147 | map_item->item = node->map_item_chain->map_item->item; | ||
148 | else | ||
149 | map_item->item = NULL; | ||
150 | |||
151 | map_statusbar(map, map_item); | ||
152 | icon_bar_map_item_selected(appdata, map_item, TRUE); | ||
153 | |||
154 | /* highlight node */ | ||
155 | harbaum | 154 | gint x = map_item->object.node->lpos.x, y = map_item->object.node->lpos.y; |
156 | harbaum | 1 | |
157 | /* create a copy of this map item and mark it as being a highlight */ | ||
158 | map_item_t *new_map_item = g_new0(map_item_t, 1); | ||
159 | memcpy(new_map_item, map_item, sizeof(map_item_t)); | ||
160 | new_map_item->highlight = TRUE; | ||
161 | |||
162 | float radius = map->style->highlight.width + map->style->node.radius; | ||
163 | if(!node->ways) radius += map->style->node.border_radius; | ||
164 | harbaum | 14 | if(node->icon_buf && map->style->icon.enable && |
165 | !appdata->settings->no_icons) { | ||
166 | harbaum | 154 | gint w = gdk_pixbuf_get_width(map_item->object.node->icon_buf); |
167 | gint h = gdk_pixbuf_get_height(map_item->object.node->icon_buf); | ||
168 | harbaum | 1 | /* icons are technically square, so a radius slightly bigger */ |
169 | /* than sqrt(2)*MAX(w,h) should fit nicely */ | ||
170 | harbaum | 162 | radius = map->state->detail * 0.75 * map->style->icon.scale * ((w>h)?w:h); |
171 | harbaum | 1 | } |
172 | |||
173 | map_hl_circle_new(map, CANVAS_GROUP_NODES_HL, new_map_item, | ||
174 | x, y, radius, map->style->highlight.color); | ||
175 | harbaum | 103 | |
176 | harbaum | 1 | if(!map_item->item) { |
177 | /* and draw a fake node */ | ||
178 | new_map_item = g_new0(map_item_t, 1); | ||
179 | memcpy(new_map_item, map_item, sizeof(map_item_t)); | ||
180 | new_map_item->highlight = TRUE; | ||
181 | harbaum | 151 | map_hl_circle_new(map, CANVAS_GROUP_NODES_IHL, new_map_item, |
182 | harbaum | 1 | x, y, map->style->node.radius, |
183 | map->style->highlight.node_color); | ||
184 | } | ||
185 | } | ||
186 | |||
187 | void map_way_select(appdata_t *appdata, way_t *way) { | ||
188 | map_t *map = appdata->map; | ||
189 | map_item_t *map_item = &map->selected; | ||
190 | |||
191 | g_assert(!map->highlight); | ||
192 | |||
193 | harbaum | 154 | map_item->object.type = WAY; |
194 | map_item->object.way = way; | ||
195 | harbaum | 1 | map_item->highlight = FALSE; |
196 | map_item->item = way->map_item_chain->map_item->item; | ||
197 | |||
198 | map_statusbar(map, map_item); | ||
199 | icon_bar_map_item_selected(appdata, map_item, TRUE); | ||
200 | gtk_widget_set_sensitive(appdata->menu_item_map_hide_sel, TRUE); | ||
201 | |||
202 | harbaum | 162 | gint arrow_width = ((map_item->object.way->draw.flags & OSM_DRAW_FLAG_BG)? |
203 | map->style->highlight.width + map_item->object.way->draw.bg.width/2: | ||
204 | map->style->highlight.width + map_item->object.way->draw.width/2) | ||
205 | * map->state->detail; | ||
206 | |||
207 | harbaum | 154 | node_chain_t *node_chain = map_item->object.way->node_chain; |
208 | harbaum | 1 | node_t *last = NULL; |
209 | while(node_chain) { | ||
210 | map_item_t item; | ||
211 | harbaum | 154 | item.object.type = NODE; |
212 | item.object.node = node_chain->node; | ||
213 | harbaum | 1 | |
214 | /* draw an arrow between every two nodes */ | ||
215 | if(last) { | ||
216 | /* create a new map item for every arrow */ | ||
217 | map_item_t *new_map_item = g_new0(map_item_t, 1); | ||
218 | harbaum | 154 | new_map_item->object.type = WAY; |
219 | new_map_item->object.way = way; | ||
220 | harbaum | 1 | new_map_item->highlight = TRUE; |
221 | |||
222 | struct { float x, y;} center, diff; | ||
223 | center.x = (last->lpos.x + node_chain->node->lpos.x)/2; | ||
224 | center.y = (last->lpos.y + node_chain->node->lpos.y)/2; | ||
225 | diff.x = node_chain->node->lpos.x - last->lpos.x; | ||
226 | diff.y = node_chain->node->lpos.y - last->lpos.y; | ||
227 | |||
228 | harbaum | 15 | /* only draw arrow if there's sufficient space */ |
229 | /* TODO: what if there's not enough space anywhere? */ | ||
230 | harbaum | 1 | float len = sqrt(pow(diff.x, 2)+pow(diff.y, 2)); |
231 | if(len > map->style->highlight.arrow_limit*arrow_width) { | ||
232 | len /= arrow_width; | ||
233 | diff.x = diff.x / len; | ||
234 | diff.y = diff.y / len; | ||
235 | |||
236 | canvas_points_t *points = canvas_points_new(4); | ||
237 | points->coords[2*0+0] = points->coords[2*3+0] = center.x + diff.x; | ||
238 | points->coords[2*0+1] = points->coords[2*3+1] = center.y + diff.y; | ||
239 | points->coords[2*1+0] = center.x + diff.y - diff.x; | ||
240 | points->coords[2*1+1] = center.y - diff.x - diff.y; | ||
241 | points->coords[2*2+0] = center.x - diff.y - diff.x; | ||
242 | points->coords[2*2+1] = center.y + diff.x - diff.y; | ||
243 | |||
244 | harbaum | 105 | map_hl_polygon_new(map, CANVAS_GROUP_WAYS_DIR, new_map_item, |
245 | harbaum | 1 | points, map->style->highlight.arrow_color); |
246 | |||
247 | canvas_points_free(points); | ||
248 | } | ||
249 | } | ||
250 | |||
251 | if(!map_hl_item_is_highlighted(map, &item)) { | ||
252 | |||
253 | /* create a new map item for every node */ | ||
254 | map_item_t *new_map_item = g_new0(map_item_t, 1); | ||
255 | harbaum | 154 | new_map_item->object.type = NODE; |
256 | new_map_item->object.node = node_chain->node; | ||
257 | harbaum | 1 | new_map_item->highlight = TRUE; |
258 | |||
259 | gint x = node_chain->node->lpos.x; | ||
260 | gint y = node_chain->node->lpos.y; | ||
261 | |||
262 | harbaum | 151 | map_hl_circle_new(map, CANVAS_GROUP_NODES_IHL, new_map_item, |
263 | harbaum | 162 | x, y, map->style->node.radius * map->state->detail, |
264 | harbaum | 1 | map->style->highlight.node_color); |
265 | } | ||
266 | |||
267 | last = node_chain->node; | ||
268 | node_chain = node_chain->next; | ||
269 | } | ||
270 | |||
271 | /* a way needs at least 2 points to be drawn */ | ||
272 | guint nodes = osm_way_number_of_nodes(way); | ||
273 | if(nodes > 1) { | ||
274 | |||
275 | /* allocate space for nodes */ | ||
276 | canvas_points_t *points = canvas_points_new(nodes); | ||
277 | |||
278 | int node = 0; | ||
279 | harbaum | 154 | node_chain = map_item->object.way->node_chain; |
280 | harbaum | 1 | while(node_chain) { |
281 | canvas_point_set_pos(points, node++, &node_chain->node->lpos); | ||
282 | node_chain = node_chain->next; | ||
283 | } | ||
284 | |||
285 | /* create a copy of this map item and mark it as being a highlight */ | ||
286 | map_item_t *new_map_item = g_new0(map_item_t, 1); | ||
287 | memcpy(new_map_item, map_item, sizeof(map_item_t)); | ||
288 | new_map_item->highlight = TRUE; | ||
289 | |||
290 | map_hl_polyline_new(map, CANVAS_GROUP_WAYS_HL, new_map_item, points, | ||
291 | harbaum | 162 | ((map_item->object.way->draw.flags & OSM_DRAW_FLAG_BG)? |
292 | 2*map->style->highlight.width + map_item->object.way->draw.bg.width: | ||
293 | 2*map->style->highlight.width + map_item->object.way->draw.width) | ||
294 | * map->state->detail, map->style->highlight.color); | ||
295 | |||
296 | harbaum | 1 | canvas_points_free(points); |
297 | } | ||
298 | } | ||
299 | |||
300 | harbaum | 153 | void map_relation_select(appdata_t *appdata, relation_t *relation) { |
301 | map_t *map = appdata->map; | ||
302 | |||
303 | harbaum | 161 | printf("highlighting relation "ITEM_ID_FORMAT"\n", relation->id); |
304 | harbaum | 153 | |
305 | g_assert(!map->highlight); | ||
306 | map_highlight_t **hl = &map->highlight; | ||
307 | |||
308 | map_item_t *map_item = &map->selected; | ||
309 | harbaum | 154 | map_item->object.type = RELATION; |
310 | map_item->object.relation = relation; | ||
311 | harbaum | 153 | map_item->highlight = FALSE; |
312 | map_item->item = NULL; | ||
313 | |||
314 | map_statusbar(map, map_item); | ||
315 | icon_bar_map_item_selected(appdata, map_item, TRUE); | ||
316 | |||
317 | /* process all members */ | ||
318 | member_t *member = relation->member; | ||
319 | while(member) { | ||
320 | canvas_item_t *item = NULL; | ||
321 | |||
322 | harbaum | 155 | switch(member->object.type) { |
323 | harbaum | 153 | |
324 | case NODE: { | ||
325 | harbaum | 155 | node_t *node = member->object.node; |
326 | harbaum | 161 | printf(" -> node "ITEM_ID_FORMAT"\n", node->id); |
327 | harbaum | 153 | |
328 | item = canvas_circle_new(map->canvas, CANVAS_GROUP_NODES_HL, | ||
329 | node->lpos.x, node->lpos.y, | ||
330 | map->style->highlight.width + map->style->node.radius, | ||
331 | 0, map->style->highlight.color, NO_COLOR); | ||
332 | } break; | ||
333 | |||
334 | case WAY: { | ||
335 | harbaum | 155 | way_t *way = member->object.way; |
336 | harbaum | 153 | /* a way needs at least 2 points to be drawn */ |
337 | guint nodes = osm_way_number_of_nodes(way); | ||
338 | if(nodes > 1) { | ||
339 | |||
340 | /* allocate space for nodes */ | ||
341 | canvas_points_t *points = canvas_points_new(nodes); | ||
342 | |||
343 | int node = 0; | ||
344 | node_chain_t *node_chain = way->node_chain; | ||
345 | while(node_chain) { | ||
346 | canvas_point_set_pos(points, node++, &node_chain->node->lpos); | ||
347 | node_chain = node_chain->next; | ||
348 | } | ||
349 | |||
350 | if(way->draw.flags & OSM_DRAW_FLAG_AREA) | ||
351 | item = canvas_polygon_new(map->canvas, CANVAS_GROUP_WAYS_HL, points, 0, 0, | ||
352 | map->style->highlight.color); | ||
353 | else | ||
354 | item = canvas_polyline_new(map->canvas, CANVAS_GROUP_WAYS_HL, points, | ||
355 | (way->draw.flags & OSM_DRAW_FLAG_BG)? | ||
356 | 2*map->style->highlight.width + way->draw.bg.width: | ||
357 | 2*map->style->highlight.width + way->draw.width, | ||
358 | map->style->highlight.color); | ||
359 | |||
360 | canvas_points_free(points); | ||
361 | } } break; | ||
362 | |||
363 | default: | ||
364 | break; | ||
365 | } | ||
366 | |||
367 | /* attach item to item chain */ | ||
368 | if(item) { | ||
369 | *hl = g_new0(map_highlight_t, 1); | ||
370 | (*hl)->item = item; | ||
371 | hl = &(*hl)->next; | ||
372 | } | ||
373 | |||
374 | member = member->next; | ||
375 | } | ||
376 | } | ||
377 | |||
378 | harbaum | 154 | static void map_object_select(appdata_t *appdata, object_t *object) { |
379 | switch(object->type) { | ||
380 | case NODE: | ||
381 | map_node_select(appdata, object->node); | ||
382 | harbaum | 1 | break; |
383 | harbaum | 154 | case WAY: |
384 | map_way_select(appdata, object->way); | ||
385 | harbaum | 1 | break; |
386 | harbaum | 154 | case RELATION: |
387 | map_relation_select(appdata, object->relation); | ||
388 | break; | ||
389 | harbaum | 1 | default: |
390 | harbaum | 154 | g_assert((object->type == NODE)||(object->type == RELATION)|| |
391 | (object->type == WAY)); | ||
392 | harbaum | 1 | break; |
393 | } | ||
394 | } | ||
395 | |||
396 | void map_item_deselect(appdata_t *appdata) { | ||
397 | |||
398 | /* save tags for "last" function in info dialog */ | ||
399 | harbaum | 154 | if(appdata->map->selected.object.type == NODE) { |
400 | harbaum | 1 | if(appdata->map->last_node_tags) |
401 | osm_tags_free(appdata->map->last_node_tags); | ||
402 | |||
403 | appdata->map->last_node_tags = | ||
404 | harbaum | 154 | osm_tags_copy(appdata->map->selected.object.node->tag, FALSE); |
405 | } else if(appdata->map->selected.object.type == WAY) { | ||
406 | harbaum | 1 | if(appdata->map->last_way_tags) |
407 | osm_tags_free(appdata->map->last_way_tags); | ||
408 | |||
409 | appdata->map->last_way_tags = | ||
410 | harbaum | 154 | osm_tags_copy(appdata->map->selected.object.way->tag, FALSE); |
411 | harbaum | 1 | } |
412 | |||
413 | /* remove statusbar message */ | ||
414 | statusbar_set(appdata, NULL, FALSE); | ||
415 | |||
416 | /* disable/enable icons in icon bar */ | ||
417 | icon_bar_map_item_selected(appdata, NULL, FALSE); | ||
418 | gtk_widget_set_sensitive(appdata->menu_item_map_hide_sel, FALSE); | ||
419 | |||
420 | /* remove highlight */ | ||
421 | map_hl_remove(appdata); | ||
422 | |||
423 | /* forget about selection */ | ||
424 | harbaum | 154 | appdata->map->selected.object.type = ILLEGAL; |
425 | harbaum | 1 | } |
426 | |||
427 | /* called whenever a map item is to be destroyed */ | ||
428 | static gint map_item_destroy_event(GtkWidget *widget, gpointer data) { | ||
429 | map_item_t *map_item = (map_item_t*)data; | ||
430 | |||
431 | // printf("destroying map_item @ %p\n", map_item); | ||
432 | |||
433 | #ifdef DESTROY_WAIT_FOR_GTK | ||
434 | /* remove item from nodes/ways map_item_chain */ | ||
435 | map_item_chain_t **chain = NULL; | ||
436 | harbaum | 154 | if(map_item->object.type == NODE) |
437 | chain = &map_item->object.node->map_item_chain; | ||
438 | else if(map_item->object.type == WAY) | ||
439 | chain = &map_item->object.way->map_item_chain; | ||
440 | harbaum | 1 | |
441 | /* there must be a chain with content, otherwise things are broken */ | ||
442 | g_assert(chain); | ||
443 | g_assert(*chain); | ||
444 | |||
445 | /* search current map_item, ... */ | ||
446 | while(*chain && (*chain)->map_item != map_item) | ||
447 | chain = &(*chain)->next; | ||
448 | |||
449 | g_assert(*chain); | ||
450 | |||
451 | /* ... remove it from chain and free it */ | ||
452 | map_item_chain_t *tmp = *chain; | ||
453 | *chain = (*chain)->next; | ||
454 | |||
455 | g_free(tmp); | ||
456 | #endif | ||
457 | |||
458 | g_free(map_item); | ||
459 | return FALSE; | ||
460 | } | ||
461 | |||
462 | static canvas_item_t *map_node_new(map_t *map, node_t *node, gint radius, | ||
463 | gint width, canvas_color_t fill, canvas_color_t border) { | ||
464 | |||
465 | map_item_t *map_item = g_new0(map_item_t, 1); | ||
466 | harbaum | 154 | map_item->object.type = NODE; |
467 | map_item->object.node = node; | ||
468 | harbaum | 1 | |
469 | harbaum | 14 | if(!node->icon_buf || !map->style->icon.enable || |
470 | harbaum | 64 | map->appdata->settings->no_icons) |
471 | harbaum | 103 | map_item->item = canvas_circle_new(map->canvas, CANVAS_GROUP_NODES, |
472 | harbaum | 1 | node->lpos.x, node->lpos.y, radius, width, fill, border); |
473 | else | ||
474 | harbaum | 103 | map_item->item = canvas_image_new(map->canvas, CANVAS_GROUP_NODES, |
475 | harbaum | 1 | node->icon_buf, |
476 | harbaum | 162 | node->lpos.x - map->style->icon.scale/2 * map->state->detail * |
477 | harbaum | 1 | gdk_pixbuf_get_width(node->icon_buf), |
478 | harbaum | 162 | node->lpos.y - map->style->icon.scale/2 * map->state->detail * |
479 | harbaum | 1 | gdk_pixbuf_get_height(node->icon_buf), |
480 | harbaum | 162 | map->state->detail * map->style->icon.scale, |
481 | map->state->detail * map->style->icon.scale); | ||
482 | harbaum | 1 | |
483 | harbaum | 162 | canvas_item_set_zoom_max(map_item->item, |
484 | node->zoom_max / (2 * map->state->detail)); | ||
485 | harbaum | 1 | |
486 | /* attach map_item to nodes map_item_chain */ | ||
487 | map_item_chain_t **chain = &node->map_item_chain; | ||
488 | while(*chain) chain = &(*chain)->next; | ||
489 | *chain = g_new0(map_item_chain_t, 1); | ||
490 | (*chain)->map_item = map_item; | ||
491 | |||
492 | canvas_item_set_user_data(map_item->item, map_item); | ||
493 | |||
494 | canvas_item_destroy_connect(map_item->item, | ||
495 | G_CALLBACK(map_item_destroy_event), map_item); | ||
496 | |||
497 | return map_item->item; | ||
498 | } | ||
499 | |||
500 | /* in the rare case that a way consists of only one node, it is */ | ||
501 | /* drawn as a circle. This e.g. happens when drawing a new way */ | ||
502 | static canvas_item_t *map_way_single_new(map_t *map, way_t *way, gint radius, | ||
503 | gint width, canvas_color_t fill, canvas_color_t border) { | ||
504 | |||
505 | map_item_t *map_item = g_new0(map_item_t, 1); | ||
506 | harbaum | 154 | map_item->object.type = WAY; |
507 | map_item->object.way = way; | ||
508 | harbaum | 103 | map_item->item = canvas_circle_new(map->canvas, CANVAS_GROUP_WAYS, |
509 | harbaum | 1 | way->node_chain->node->lpos.x, way->node_chain->node->lpos.y, |
510 | radius, width, fill, border); | ||
511 | |||
512 | // TODO: decide: do we need canvas_item_set_zoom_max() here too? | ||
513 | |||
514 | /* attach map_item to nodes map_item_chain */ | ||
515 | map_item_chain_t **chain = &way->map_item_chain; | ||
516 | while(*chain) chain = &(*chain)->next; | ||
517 | *chain = g_new0(map_item_chain_t, 1); | ||
518 | (*chain)->map_item = map_item; | ||
519 | |||
520 | canvas_item_set_user_data(map_item->item, map_item); | ||
521 | |||
522 | canvas_item_destroy_connect(map_item->item, | ||
523 | G_CALLBACK(map_item_destroy_event), map_item); | ||
524 | |||
525 | return map_item->item; | ||
526 | } | ||
527 | |||
528 | static canvas_item_t *map_way_new(map_t *map, canvas_group_t group, | ||
529 | way_t *way, canvas_points_t *points, gint width, | ||
530 | canvas_color_t color, canvas_color_t fill_color) { | ||
531 | map_item_t *map_item = g_new0(map_item_t, 1); | ||
532 | harbaum | 154 | map_item->object.type = WAY; |
533 | map_item->object.way = way; | ||
534 | harbaum | 1 | |
535 | if(way->draw.flags & OSM_DRAW_FLAG_AREA) { | ||
536 | harbaum | 22 | if(map->style->area.color & 0xff) |
537 | harbaum | 103 | map_item->item = canvas_polygon_new(map->canvas, group, points, |
538 | harbaum | 1 | width, color, fill_color); |
539 | else | ||
540 | harbaum | 103 | map_item->item = canvas_polyline_new(map->canvas, group, points, |
541 | harbaum | 1 | width, color); |
542 | } else { | ||
543 | harbaum | 103 | map_item->item = canvas_polyline_new(map->canvas, group, points, width, color); |
544 | harbaum | 1 | } |
545 | |||
546 | harbaum | 162 | canvas_item_set_zoom_max(map_item->item, |
547 | way->draw.zoom_max / (2 * map->state->detail)); | ||
548 | harbaum | 1 | |
549 | harbaum | 108 | /* a ways outline itself is never dashed */ |
550 | achadwick | 13 | if (group != CANVAS_GROUP_WAYS_OL) |
551 | if (way->draw.dashed) | ||
552 | achadwick | 46 | canvas_item_set_dashed(map_item->item, width, way->draw.dash_length); |
553 | achadwick | 13 | |
554 | harbaum | 1 | /* attach map_item to ways map_item_chain */ |
555 | map_item_chain_t **chain = &way->map_item_chain; | ||
556 | while(*chain) chain = &(*chain)->next; | ||
557 | *chain = g_new0(map_item_chain_t, 1); | ||
558 | (*chain)->map_item = map_item; | ||
559 | |||
560 | canvas_item_set_user_data(map_item->item, map_item); | ||
561 | |||
562 | canvas_item_destroy_connect(map_item->item, | ||
563 | G_CALLBACK(map_item_destroy_event), map_item); | ||
564 | |||
565 | return map_item->item; | ||
566 | } | ||
567 | |||
568 | void map_show_node(map_t *map, node_t *node) { | ||
569 | map_node_new(map, node, map->style->node.radius, 0, | ||
570 | harbaum | 22 | map->style->node.color, 0); |
571 | harbaum | 1 | } |
572 | |||
573 | void map_way_draw(map_t *map, way_t *way) { | ||
574 | |||
575 | /* don't draw a way that's not there anymore */ | ||
576 | if(way->flags & (OSM_FLAG_DELETED | OSM_FLAG_HIDDEN)) | ||
577 | return; | ||
578 | |||
579 | /* allocate space for nodes */ | ||
580 | /* a way needs at least 2 points to be drawn */ | ||
581 | guint nodes = osm_way_number_of_nodes(way); | ||
582 | if(nodes == 1) { | ||
583 | /* draw a single dot where this single node is */ | ||
584 | map_way_single_new(map, way, map->style->node.radius, 0, | ||
585 | harbaum | 22 | map->style->node.color, 0); |
586 | harbaum | 1 | } else { |
587 | canvas_points_t *points = canvas_points_new(nodes); | ||
588 | |||
589 | int node = 0; | ||
590 | node_chain_t *node_chain = way->node_chain; | ||
591 | while(node_chain) { | ||
592 | canvas_point_set_pos(points, node++, &node_chain->node->lpos); | ||
593 | node_chain = node_chain->next; | ||
594 | } | ||
595 | |||
596 | /* draw way */ | ||
597 | harbaum | 162 | float width = way->draw.width * map->state->detail; |
598 | |||
599 | harbaum | 1 | if(way->draw.flags & OSM_DRAW_FLAG_AREA) { |
600 | map_way_new(map, CANVAS_GROUP_POLYGONS, way, points, | ||
601 | harbaum | 162 | width, way->draw.color, way->draw.area.color); |
602 | harbaum | 1 | } else { |
603 | harbaum | 162 | |
604 | harbaum | 108 | if(way->draw.flags & OSM_DRAW_FLAG_BG) { |
605 | map_way_new(map, CANVAS_GROUP_WAYS_INT, way, points, | ||
606 | harbaum | 162 | width, way->draw.color, NO_COLOR); |
607 | harbaum | 108 | |
608 | harbaum | 1 | map_way_new(map, CANVAS_GROUP_WAYS_OL, way, points, |
609 | harbaum | 162 | way->draw.bg.width * map->state->detail, |
610 | way->draw.bg.color, NO_COLOR); | ||
611 | harbaum | 108 | |
612 | } else | ||
613 | map_way_new(map, CANVAS_GROUP_WAYS, way, points, | ||
614 | harbaum | 162 | width, way->draw.color, NO_COLOR); |
615 | harbaum | 1 | } |
616 | canvas_points_free(points); | ||
617 | } | ||
618 | } | ||
619 | |||
620 | void map_node_draw(map_t *map, node_t *node) { | ||
621 | /* don't draw a node that's not there anymore */ | ||
622 | if(node->flags & OSM_FLAG_DELETED) | ||
623 | return; | ||
624 | |||
625 | if(!node->ways) | ||
626 | map_node_new(map, node, | ||
627 | harbaum | 162 | map->style->node.radius * map->state->detail, |
628 | map->style->node.border_radius * map->state->detail, | ||
629 | harbaum | 22 | map->style->node.fill_color, |
630 | map->style->node.color); | ||
631 | harbaum | 1 | |
632 | else if(map->style->node.show_untagged || osm_node_has_tag(node)) | ||
633 | map_node_new(map, node, | ||
634 | harbaum | 162 | map->style->node.radius * map->state->detail, 0, |
635 | harbaum | 22 | map->style->node.color, 0); |
636 | harbaum | 1 | } |
637 | |||
638 | static void map_item_draw(map_t *map, map_item_t *map_item) { | ||
639 | harbaum | 154 | switch(map_item->object.type) { |
640 | case NODE: | ||
641 | map_node_draw(map, map_item->object.node); | ||
642 | harbaum | 1 | break; |
643 | harbaum | 154 | case WAY: |
644 | map_way_draw(map, map_item->object.way); | ||
645 | harbaum | 1 | break; |
646 | default: | ||
647 | harbaum | 154 | g_assert((map_item->object.type == NODE) || |
648 | (map_item->object.type == WAY)); | ||
649 | harbaum | 1 | } |
650 | } | ||
651 | |||
652 | static void map_item_remove(map_t *map, map_item_t *map_item) { | ||
653 | map_item_chain_t **chainP = NULL; | ||
654 | |||
655 | harbaum | 154 | switch(map_item->object.type) { |
656 | case NODE: | ||
657 | chainP = &map_item->object.node->map_item_chain; | ||
658 | harbaum | 1 | break; |
659 | harbaum | 154 | case WAY: |
660 | chainP = &map_item->object.way->map_item_chain; | ||
661 | harbaum | 1 | break; |
662 | default: | ||
663 | harbaum | 154 | g_assert((map_item->object.type == NODE) || |
664 | (map_item->object.type == WAY)); | ||
665 | harbaum | 1 | } |
666 | |||
667 | map_item_chain_destroy(chainP); | ||
668 | } | ||
669 | |||
670 | static void map_item_init(style_t *style, map_item_t *map_item) { | ||
671 | harbaum | 154 | switch (map_item->object.type){ |
672 | case WAY: | ||
673 | josm_elemstyles_colorize_way(style, map_item->object.way); | ||
674 | harbaum | 1 | break; |
675 | harbaum | 154 | case NODE: |
676 | josm_elemstyles_colorize_node(style, map_item->object.node); | ||
677 | harbaum | 1 | break; |
678 | default: | ||
679 | harbaum | 154 | g_assert((map_item->object.type == NODE) || |
680 | (map_item->object.type == WAY)); | ||
681 | harbaum | 1 | } |
682 | } | ||
683 | |||
684 | void map_item_redraw(appdata_t *appdata, map_item_t *map_item) { | ||
685 | map_item_t item = *map_item; | ||
686 | |||
687 | /* check if the item to be redrawn is the selected one */ | ||
688 | gboolean is_selected = FALSE; | ||
689 | harbaum | 154 | if(map_item->object.ptr == appdata->map->selected.object.ptr) { |
690 | harbaum | 1 | map_item_deselect(appdata); |
691 | is_selected = TRUE; | ||
692 | } | ||
693 | |||
694 | map_item_remove(appdata->map, &item); | ||
695 | map_item_init(appdata->map->style, &item); | ||
696 | map_item_draw(appdata->map, &item); | ||
697 | |||
698 | /* restore selection if there was one */ | ||
699 | if(is_selected) | ||
700 | harbaum | 154 | map_object_select(appdata, &item.object); |
701 | harbaum | 1 | } |
702 | |||
703 | static void map_frisket_rectangle(canvas_points_t *points, | ||
704 | gint x0, gint x1, gint y0, gint y1) { | ||
705 | points->coords[2*0+0] = points->coords[2*3+0] = points->coords[2*4+0] = x0; | ||
706 | points->coords[2*1+0] = points->coords[2*2+0] = x1; | ||
707 | points->coords[2*0+1] = points->coords[2*1+1] = points->coords[2*4+1] = y0; | ||
708 | points->coords[2*2+1] = points->coords[2*3+1] = y1; | ||
709 | } | ||
710 | |||
711 | /* Draw the frisket area which masks off areas it'd be unsafe to edit, | ||
712 | * plus its inner edge marker line */ | ||
713 | void map_frisket_draw(map_t *map, bounds_t *bounds) { | ||
714 | canvas_points_t *points = canvas_points_new(5); | ||
715 | |||
716 | /* don't draw frisket at all if it's completely transparent */ | ||
717 | harbaum | 22 | if(map->style->frisket.color & 0xff) { |
718 | elemstyle_color_t color = map->style->frisket.color; | ||
719 | harbaum | 1 | |
720 | float mult = map->style->frisket.mult; | ||
721 | |||
722 | /* top rectangle */ | ||
723 | map_frisket_rectangle(points, mult*bounds->min.x, mult*bounds->max.x, | ||
724 | mult*bounds->min.y, bounds->min.y); | ||
725 | harbaum | 103 | canvas_polygon_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
726 | 1, NO_COLOR, color); | ||
727 | harbaum | 1 | |
728 | /* bottom rectangle */ | ||
729 | map_frisket_rectangle(points, mult*bounds->min.x, mult*bounds->max.x, | ||
730 | bounds->max.y, mult*bounds->max.y); | ||
731 | harbaum | 103 | canvas_polygon_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
732 | 1, NO_COLOR, color); | ||
733 | harbaum | 1 | |
734 | /* left rectangle */ | ||
735 | map_frisket_rectangle(points, mult*bounds->min.x, bounds->min.x, | ||
736 | mult*bounds->min.y, mult*bounds->max.y); | ||
737 | harbaum | 103 | canvas_polygon_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
738 | 1, NO_COLOR, color); | ||
739 | harbaum | 1 | |
740 | /* right rectangle */ | ||
741 | map_frisket_rectangle(points, bounds->max.x, mult*bounds->max.x, | ||
742 | mult*bounds->min.y, mult*bounds->max.y); | ||
743 | harbaum | 103 | canvas_polygon_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
744 | 1, NO_COLOR, color); | ||
745 | harbaum | 1 | |
746 | } | ||
747 | |||
748 | if(map->style->frisket.border.present) { | ||
749 | // Edge marker line | ||
750 | gint ew2 = map->style->frisket.border.width/2; | ||
751 | map_frisket_rectangle(points, | ||
752 | bounds->min.x-ew2, bounds->max.x+ew2, | ||
753 | bounds->min.y-ew2, bounds->max.y+ew2); | ||
754 | |||
755 | harbaum | 103 | canvas_polyline_new(map->canvas, CANVAS_GROUP_FRISKET, points, |
756 | harbaum | 1 | map->style->frisket.border.width, |
757 | map->style->frisket.border.color); | ||
758 | |||
759 | } | ||
760 | canvas_points_free(points); | ||
761 | } | ||
762 | |||
763 | static void map_draw(map_t *map, osm_t *osm) { | ||
764 | g_assert(map->canvas); | ||
765 | |||
766 | printf("drawing ways ...\n"); | ||
767 | way_t *way = osm->way; | ||
768 | while(way) { | ||
769 | map_way_draw(map, way); | ||
770 | way = way->next; | ||
771 | } | ||
772 | |||
773 | printf("drawing single nodes ...\n"); | ||
774 | node_t *node = osm->node; | ||
775 | while(node) { | ||
776 | map_node_draw(map, node); | ||
777 | node = node->next; | ||
778 | } | ||
779 | |||
780 | printf("drawing frisket...\n"); | ||
781 | map_frisket_draw(map, osm->bounds); | ||
782 | } | ||
783 | |||
784 | void map_state_free(map_state_t *state) { | ||
785 | if(!state) return; | ||
786 | |||
787 | /* free state of noone else references it */ | ||
788 | if(state->refcount > 1) | ||
789 | state->refcount--; | ||
790 | else | ||
791 | g_free(state); | ||
792 | } | ||
793 | |||
794 | void map_free_map_item_chains(appdata_t *appdata) { | ||
795 | if(!appdata->osm) return; | ||
796 | |||
797 | #ifndef DESTROY_WAIT_FOR_GTK | ||
798 | printf(" DESTROY_WAIT_FOR_GTK not set, removing all chains now\n"); | ||
799 | |||
800 | /* free all map_item_chains */ | ||
801 | node_t *node = appdata->osm->node; | ||
802 | while(node) { | ||
803 | map_item_chain_t *chain = node->map_item_chain; | ||
804 | while(chain) { | ||
805 | map_item_chain_t *next = chain->next; | ||
806 | g_free(chain); | ||
807 | chain = next; | ||
808 | } | ||
809 | node->map_item_chain = NULL; | ||
810 | node = node->next; | ||
811 | } | ||
812 | |||
813 | way_t *way = appdata->osm->way; | ||
814 | while(way) { | ||
815 | map_item_chain_t *chain = way->map_item_chain; | ||
816 | while(chain) { | ||
817 | map_item_chain_t *next = chain->next; | ||
818 | g_free(chain); | ||
819 | chain = next; | ||
820 | } | ||
821 | way->map_item_chain = NULL; | ||
822 | way = way->next; | ||
823 | } | ||
824 | #endif | ||
825 | } | ||
826 | |||
827 | static gint map_destroy_event(GtkWidget *widget, gpointer data) { | ||
828 | appdata_t *appdata = (appdata_t*)data; | ||
829 | map_t *map = appdata->map; | ||
830 | |||
831 | printf("destroying entire map\n"); | ||
832 | |||
833 | map_free_map_item_chains(appdata); | ||
834 | |||
835 | /* free buffered tags */ | ||
836 | if(map->last_node_tags) osm_tags_free(map->last_node_tags); | ||
837 | if(map->last_way_tags) osm_tags_free(map->last_way_tags); | ||
838 | |||
839 | map_state_free(map->state); | ||
840 | |||
841 | if(map->style) | ||
842 | style_free(map->style); | ||
843 | |||
844 | /* destroy existing highlight */ | ||
845 | if(map->highlight) { | ||
846 | printf("removing highlight\n"); | ||
847 | |||
848 | map_highlight_t *hl = map->highlight; | ||
849 | while(hl) { | ||
850 | map_highlight_t *next = hl->next; | ||
851 | g_free(hl); | ||
852 | hl = next; | ||
853 | } | ||
854 | } | ||
855 | |||
856 | g_free(map); | ||
857 | |||
858 | appdata->map = NULL; | ||
859 | |||
860 | return FALSE; | ||
861 | } | ||
862 | |||
863 | /* get the item at position x, y */ | ||
864 | map_item_t *map_item_at(map_t *map, gint x, gint y) { | ||
865 | printf("map check at %d/%d\n", x, y); | ||
866 | |||
867 | canvas_window2world(map->canvas, x, y, &x, &y); | ||
868 | |||
869 | printf("world check at %d/%d\n", x, y); | ||
870 | |||
871 | canvas_item_t *item = canvas_get_item_at(map->canvas, x, y); | ||
872 | |||
873 | if(!item) { | ||
874 | printf(" there's no item\n"); | ||
875 | return NULL; | ||
876 | } | ||
877 | |||
878 | printf(" there's an item (%p)\n", item); | ||
879 | |||
880 | map_item_t *map_item = canvas_item_get_user_data(item); | ||
881 | |||
882 | if(!map_item) { | ||
883 | printf(" item has no user data!\n"); | ||
884 | return NULL; | ||
885 | } | ||
886 | |||
887 | harbaum | 15 | if(map_item->highlight) |
888 | harbaum | 1 | printf(" item is highlight\n"); |
889 | |||
890 | harbaum | 154 | switch(map_item->object.type) { |
891 | case NODE: | ||
892 | harbaum | 161 | printf(" item is node #"ITEM_ID_FORMAT"\n", map_item->object.node->id); |
893 | harbaum | 1 | break; |
894 | harbaum | 154 | case WAY: |
895 | harbaum | 161 | printf(" item is way #"ITEM_ID_FORMAT"\n", map_item->object.way->id); |
896 | harbaum | 1 | break; |
897 | default: | ||
898 | printf(" unknown item\n"); | ||
899 | break; | ||
900 | } | ||
901 | |||
902 | return map_item; | ||
903 | } | ||
904 | |||
905 | /* get the real item (no highlight) at x, y */ | ||
906 | harbaum | 15 | map_item_t *map_real_item_at(map_t *map, gint x, gint y) { |
907 | harbaum | 1 | map_item_t *map_item = map_item_at(map, x, y); |
908 | |||
909 | /* no item or already a real one */ | ||
910 | if(!map_item || !map_item->highlight) return map_item; | ||
911 | |||
912 | /* get the item (parent) this item is the highlight of */ | ||
913 | map_item_t *parent = NULL; | ||
914 | harbaum | 154 | switch(map_item->object.type) { |
915 | harbaum | 1 | |
916 | harbaum | 154 | case NODE: |
917 | if(map_item->object.node->map_item_chain) | ||
918 | parent = map_item->object.node->map_item_chain->map_item; | ||
919 | harbaum | 1 | |
920 | if(parent) | ||
921 | harbaum | 161 | printf(" using parent item node #" ITEM_ID_FORMAT "\n", |
922 | parent->object.node->id); | ||
923 | harbaum | 1 | break; |
924 | |||
925 | harbaum | 154 | case WAY: |
926 | if(map_item->object.way->map_item_chain) | ||
927 | parent = map_item->object.way->map_item_chain->map_item; | ||
928 | harbaum | 1 | |
929 | if(parent) | ||
930 | harbaum | 161 | printf(" using parent item way #" ITEM_ID_FORMAT "\n", |
931 | parent->object.way->id); | ||
932 | harbaum | 1 | break; |
933 | |||
934 | default: | ||
935 | harbaum | 154 | g_assert((map_item->object.type == NODE) || |
936 | (map_item->object.type == WAY)); | ||
937 | harbaum | 1 | break; |
938 | } | ||
939 | |||
940 | if(parent) | ||
941 | map_item = parent; | ||
942 | else | ||
943 | printf(" no parent, working on highlight itself\n"); | ||
944 | |||
945 | return map_item; | ||
946 | } | ||
947 | |||
948 | /* Limitations on the amount by which we can scroll. Keeps part of the | ||
949 | * map visible at all times */ | ||
950 | harbaum | 103 | static void map_limit_scroll(map_t *map, canvas_unit_t unit, |
951 | gint *sx, gint *sy) { | ||
952 | harbaum | 1 | |
953 | harbaum | 103 | /* get scale factor for pixel->meter conversion. set to 1 if */ |
954 | /* given coordinates are already in meters */ | ||
955 | gdouble scale = (unit == CANVAS_UNIT_METER)?1.0:canvas_get_zoom(map->canvas); | ||
956 | harbaum | 1 | |
957 | harbaum | 103 | /* convert pixels to meters if necessary */ |
958 | gdouble sx_cu = *sx / scale; | ||
959 | gdouble sy_cu = *sy / scale; | ||
960 | |||
961 | /* get size of visible area in canvas units (meters) */ | ||
962 | gint aw_cu = canvas_get_viewport_width(map->canvas, CANVAS_UNIT_METER); | ||
963 | gint ah_cu = canvas_get_viewport_height(map->canvas, CANVAS_UNIT_METER); | ||
964 | |||
965 | // Data rect minimum and maximum | ||
966 | gint min_x, min_y, max_x, max_y; | ||
967 | min_x = map->appdata->osm->bounds->min.x; | ||
968 | min_y = map->appdata->osm->bounds->min.y; | ||
969 | max_x = map->appdata->osm->bounds->max.x; | ||
970 | max_y = map->appdata->osm->bounds->max.y; | ||
971 | |||
972 | // limit stops - prevent scrolling beyond these | ||
973 | gint min_sy_cu = 0.95*(min_y - ah_cu); | ||
974 | gint min_sx_cu = 0.95*(min_x - aw_cu); | ||
975 | gint max_sy_cu = 0.95*(max_y); | ||
976 | gint max_sx_cu = 0.95*(max_x); | ||
977 | if (sy_cu < min_sy_cu) { *sy = min_sy_cu * scale; } | ||
978 | if (sx_cu < min_sx_cu) { *sx = min_sx_cu * scale; } | ||
979 | if (sy_cu > max_sy_cu) { *sy = max_sy_cu * scale; } | ||
980 | if (sx_cu > max_sx_cu) { *sx = max_sx_cu * scale; } | ||
981 | harbaum | 1 | } |
982 | |||
983 | |||
984 | /* Limit a proposed zoom factor to sane ranges. | ||
985 | * Specifically the map is allowed to be no smaller than the viewport. */ | ||
986 | static gboolean map_limit_zoom(map_t *map, gdouble *zoom) { | ||
987 | // Data rect minimum and maximum | ||
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 | |||
994 | harbaum | 103 | /* get size of visible area in pixels and convert to meters of intended */ |
995 | /* zoom by deviding by zoom (which is basically pix/m) */ | ||
996 | gint aw_cu = | ||
997 | canvas_get_viewport_width(map->canvas, CANVAS_UNIT_PIXEL) / *zoom; | ||
998 | gint ah_cu = | ||
999 | canvas_get_viewport_height(map->canvas, CANVAS_UNIT_PIXEL) / *zoom; | ||
1000 | harbaum | 1 | |
1001 | gdouble oldzoom = *zoom; | ||
1002 | if (ah_cu < aw_cu) { | ||
1003 | gint lim_h = ah_cu*0.95; | ||
1004 | if (max_y-min_y < lim_h) { | ||
1005 | gdouble corr = ((gdouble)max_y-min_y) / (gdouble)lim_h; | ||
1006 | *zoom /= corr; | ||
1007 | } | ||
1008 | } | ||
1009 | else { | ||
1010 | gint lim_w = aw_cu*0.95; | ||
1011 | if (max_x-min_x < lim_w) { | ||
1012 | gdouble corr = ((gdouble)max_x-min_x) / (gdouble)lim_w; | ||
1013 | *zoom /= corr; | ||
1014 | } | ||
1015 | } | ||
1016 | if (*zoom != oldzoom) { | ||
1017 | printf("Can't zoom further out\n"); | ||
1018 | return 1; | ||
1019 | } | ||
1020 | return 0; | ||
1021 | } | ||
1022 | |||
1023 | |||
1024 | achadwick | 12 | /* |
1025 | * Scroll the map to a point if that point is currently offscreen. | ||
1026 | */ | ||
1027 | void map_scroll_to_if_offscreen(map_t *map, lpos_t *lpos) { | ||
1028 | |||
1029 | // Ignore anything outside the working area | ||
1030 | if (!(map && map->appdata && map->appdata->osm)) { | ||
1031 | return; | ||
1032 | } | ||
1033 | gint min_x, min_y, max_x, max_y; | ||
1034 | min_x = map->appdata->osm->bounds->min.x; | ||
1035 | min_y = map->appdata->osm->bounds->min.y; | ||
1036 | max_x = map->appdata->osm->bounds->max.x; | ||
1037 | max_y = map->appdata->osm->bounds->max.y; | ||
1038 | if ( (lpos->x > max_x) || (lpos->x < min_x) | ||
1039 | || (lpos->y > max_y) || (lpos->y < min_y)) { | ||
1040 | harbaum | 14 | printf("cannot scroll to (%d, %d): outside the working area\n", |
1041 | lpos->x, lpos->y); | ||
1042 | achadwick | 12 | return; |
1043 | } | ||
1044 | |||
1045 | // Viewport dimensions in canvas space | ||
1046 | |||
1047 | harbaum | 103 | /* get size of visible area in canvas units (meters) */ |
1048 | gdouble pix_per_meter = canvas_get_zoom(map->canvas); | ||
1049 | gdouble aw = canvas_get_viewport_width(map->canvas, CANVAS_UNIT_METER); | ||
1050 | gdouble ah = canvas_get_viewport_height(map->canvas, CANVAS_UNIT_METER); | ||
1051 | |||
1052 | achadwick | 12 | // Is the point still onscreen? |
1053 | gboolean vert_recentre_needed = FALSE; | ||
1054 | gboolean horiz_recentre_needed = FALSE; | ||
1055 | gint sx, sy; | ||
1056 | harbaum | 103 | canvas_scroll_get(map->canvas, CANVAS_UNIT_PIXEL, &sx, &sy); |
1057 | gint viewport_left = (sx/pix_per_meter); | ||
1058 | gint viewport_right = (sx/pix_per_meter)+aw; | ||
1059 | gint viewport_top = (sy/pix_per_meter); | ||
1060 | gint viewport_bottom = (sy/pix_per_meter)+ah; | ||
1061 | achadwick | 12 | if (lpos->x > viewport_right) { |
1062 | printf("** off right edge (%d > %d)\n", lpos->x, viewport_right); | ||
1063 | horiz_recentre_needed = TRUE; | ||
1064 | } | ||
1065 | if (lpos->x < viewport_left) { | ||
1066 | printf("** off left edge (%d < %d)\n", lpos->x, viewport_left); | ||
1067 | horiz_recentre_needed = TRUE; | ||
1068 | } | ||
1069 | if (lpos->y > viewport_bottom) { | ||
1070 | printf("** off bottom edge (%d > %d)\n", lpos->y, viewport_bottom); | ||
1071 | vert_recentre_needed = TRUE; | ||
1072 | } | ||
1073 | if (lpos->y < viewport_top) { | ||
1074 | printf("** off top edge (%d < %d)\n", lpos->y, viewport_top); | ||
1075 | vert_recentre_needed = TRUE; | ||
1076 | } | ||
1077 | |||
1078 | if (horiz_recentre_needed || vert_recentre_needed) { | ||
1079 | gint new_sx, new_sy; | ||
1080 | harbaum | 78 | |
1081 | achadwick | 12 | // Just centre both at once |
1082 | harbaum | 103 | new_sx = pix_per_meter * (lpos->x - (aw/2)); |
1083 | new_sy = pix_per_meter * (lpos->y - (ah/2)); | ||
1084 | harbaum | 78 | |
1085 | harbaum | 103 | map_limit_scroll(map, CANVAS_UNIT_PIXEL, &new_sx, &new_sy); |
1086 | canvas_scroll_to(map->canvas, CANVAS_UNIT_PIXEL, new_sx, new_sy); | ||
1087 | achadwick | 12 | } |
1088 | } | ||
1089 | |||
1090 | harbaum | 1 | /* Deselects the current way or node if its zoom_max |
1091 | * means that it's not going to render at the current map zoom. */ | ||
1092 | void map_deselect_if_zoom_below_zoom_max(map_t *map) { | ||
1093 | harbaum | 154 | if (map->selected.object.type == WAY) { |
1094 | harbaum | 1 | printf("will deselect way if zoomed below %f\n", |
1095 | harbaum | 154 | map->selected.object.way->draw.zoom_max); |
1096 | if (map->state->zoom < map->selected.object.way->draw.zoom_max) { | ||
1097 | harbaum | 1 | printf(" deselecting way!\n"); |
1098 | map_item_deselect(map->appdata); | ||
1099 | } | ||
1100 | } | ||
1101 | harbaum | 154 | else if (map->selected.object.type == NODE) { |
1102 | harbaum | 1 | printf("will deselect node if zoomed below %f\n", |
1103 | harbaum | 154 | map->selected.object.node->zoom_max); |
1104 | if (map->state->zoom < map->selected.object.node->zoom_max) { | ||
1105 | harbaum | 1 | printf(" deselecting node!\n"); |
1106 | map_item_deselect(map->appdata); | ||
1107 | } | ||
1108 | } | ||
1109 | } | ||
1110 | |||
1111 | void map_set_zoom(map_t *map, double zoom, | ||
1112 | gboolean update_scroll_offsets) { | ||
1113 | gboolean at_zoom_limit = 0; | ||
1114 | at_zoom_limit = map_limit_zoom(map, &zoom); | ||
1115 | harbaum | 78 | |
1116 | harbaum | 1 | map->state->zoom = zoom; |
1117 | canvas_set_zoom(map->canvas, map->state->zoom); | ||
1118 | |||
1119 | map_deselect_if_zoom_below_zoom_max(map); | ||
1120 | |||
1121 | harbaum | 103 | if(update_scroll_offsets) { |
1122 | harbaum | 1 | if (!at_zoom_limit) { |
1123 | /* zooming affects the scroll offsets */ | ||
1124 | gint sx, sy; | ||
1125 | harbaum | 103 | canvas_scroll_get(map->canvas, CANVAS_UNIT_PIXEL, &sx, &sy); |
1126 | map_limit_scroll(map, CANVAS_UNIT_PIXEL, &sx, &sy); | ||
1127 | |||
1128 | // keep the map visible | ||
1129 | canvas_scroll_to(map->canvas, CANVAS_UNIT_PIXEL, sx, sy); | ||
1130 | harbaum | 1 | } |
1131 | harbaum | 103 | |
1132 | canvas_scroll_get(map->canvas, CANVAS_UNIT_METER, | ||
1133 | &map->state->scroll_offset.x, | ||
1134 | &map->state->scroll_offset.y); | ||
1135 | harbaum | 1 | } |
1136 | } | ||
1137 | |||
1138 | static gboolean map_scroll_event(GtkWidget *widget, GdkEventScroll *event, | ||
1139 | gpointer data) { | ||
1140 | appdata_t *appdata = (appdata_t*)data; | ||
1141 | |||
1142 | if(!appdata->osm) return FALSE; | ||
1143 | |||
1144 | if(event->type == GDK_SCROLL && appdata->map && appdata->map->state) { | ||
1145 | if(event->direction) | ||
1146 | map_set_zoom(appdata->map, | ||
1147 | appdata->map->state->zoom / ZOOM_FACTOR_WHEEL, TRUE); | ||
1148 | else | ||
1149 | map_set_zoom(appdata->map, | ||
1150 | appdata->map->state->zoom * ZOOM_FACTOR_WHEEL, TRUE); | ||
1151 | } | ||
1152 | |||
1153 | return TRUE; | ||
1154 | } | ||
1155 | |||
1156 | static gboolean distance_above(map_t *map, gint x, gint y, gint limit) { | ||
1157 | gint sx, sy; | ||
1158 | |||
1159 | /* add offsets generated by mouse within map and map scrolling */ | ||
1160 | sx = (x-map->pen_down.at.x); | ||
1161 | sy = (y-map->pen_down.at.y); | ||
1162 | |||
1163 | return(sx*sx + sy*sy > limit*limit); | ||
1164 | } | ||
1165 | |||
1166 | /* scroll with respect to two screen positions */ | ||
1167 | static void map_do_scroll(map_t *map, gint x, gint y) { | ||
1168 | gint sx, sy; | ||
1169 | |||
1170 | harbaum | 103 | canvas_scroll_get(map->canvas, CANVAS_UNIT_PIXEL, &sx, &sy); |
1171 | harbaum | 1 | sx -= x-map->pen_down.at.x; |
1172 | sy -= y-map->pen_down.at.y; | ||
1173 | harbaum | 103 | map_limit_scroll(map, CANVAS_UNIT_PIXEL, &sx, &sy); |
1174 | canvas_scroll_to(map->canvas, CANVAS_UNIT_PIXEL, sx, sy); | ||
1175 | |||
1176 | canvas_scroll_get(map->canvas, CANVAS_UNIT_METER, | ||
1177 | &map->state->scroll_offset.x, | ||
1178 | &map->state->scroll_offset.y); | ||
1179 | harbaum | 1 | } |
1180 | |||
1181 | |||
1182 | /* scroll a certain step */ | ||
1183 | static void map_do_scroll_step(map_t *map, gint x, gint y) { | ||
1184 | gint sx, sy; | ||
1185 | harbaum | 103 | canvas_scroll_get(map->canvas, CANVAS_UNIT_PIXEL, &sx, &sy); |
1186 | harbaum | 1 | sx += x; |
1187 | sy += y; | ||
1188 | harbaum | 103 | map_limit_scroll(map, CANVAS_UNIT_PIXEL, &sx, &sy); |
1189 | canvas_scroll_to(map->canvas, CANVAS_UNIT_PIXEL, sx, sy); | ||
1190 | |||
1191 | canvas_scroll_get(map->canvas, CANVAS_UNIT_METER, | ||
1192 | &map->state->scroll_offset.x, | ||
1193 | &map->state->scroll_offset.y); | ||
1194 | harbaum | 1 | } |
1195 | |||
1196 | gboolean map_item_is_selected_node(map_t *map, map_item_t *map_item) { | ||
1197 | printf("check if item is a selected node\n"); | ||
1198 | |||
1199 | if(!map_item) { | ||
1200 | printf(" no item requested\n"); | ||
1201 | return FALSE; | ||
1202 | } | ||
1203 | |||
1204 | harbaum | 154 | if(map->selected.object.type == ILLEGAL) { |
1205 | harbaum | 1 | printf(" nothing is selected\n"); |
1206 | return FALSE; | ||
1207 | } | ||
1208 | |||
1209 | /* clicked the highlight directly */ | ||
1210 | harbaum | 154 | if(map_item->object.type != NODE) { |
1211 | harbaum | 1 | printf(" didn't click node\n"); |
1212 | return FALSE; | ||
1213 | } | ||
1214 | |||
1215 | harbaum | 154 | if(map->selected.object.type == NODE) { |
1216 | harbaum | 1 | printf(" selected item is a node\n"); |
1217 | |||
1218 | harbaum | 154 | if(map_item->object.node == map->selected.object.node) { |
1219 | harbaum | 1 | printf(" requested item is a selected node\n"); |
1220 | return TRUE; | ||
1221 | } | ||
1222 | printf(" but it's not the requested one\n"); | ||
1223 | return FALSE; | ||
1224 | |||
1225 | harbaum | 154 | } else if(map->selected.object.type == WAY) { |
1226 | harbaum | 1 | printf(" selected item is a way\n"); |
1227 | |||
1228 | harbaum | 154 | node_chain_t *node_chain = map->selected.object.way->node_chain; |
1229 | harbaum | 1 | while(node_chain) { |
1230 | harbaum | 154 | if(node_chain->node == map_item->object.node) { |
1231 | harbaum | 1 | printf(" requested item is part of selected way\n"); |
1232 | return TRUE; | ||
1233 | } | ||
1234 | node_chain = node_chain->next; | ||
1235 | } | ||
1236 | printf(" but it doesn't include the requested node\n"); | ||
1237 | return FALSE; | ||
1238 | |||
1239 | } else { | ||
1240 | printf(" selected item is unknown\n"); | ||
1241 | return FALSE; | ||
1242 | } | ||
1243 | |||
1244 | g_assert(0); | ||
1245 | return TRUE; | ||
1246 | } | ||
1247 | |||
1248 | /* return true if the item given is the currenly selected way */ | ||
1249 | /* also return false if nothing is selected or the selection is no way */ | ||
1250 | gboolean map_item_is_selected_way(map_t *map, map_item_t *map_item) { | ||
1251 | printf("check if item is the selected way\n"); | ||
1252 | |||
1253 | if(!map_item) { | ||
1254 | printf(" no item requested\n"); | ||
1255 | return FALSE; | ||
1256 | } | ||
1257 | |||
1258 | harbaum | 154 | if(map->selected.object.type == ILLEGAL) { |
1259 | harbaum | 1 | printf(" nothing is selected\n"); |
1260 | return FALSE; | ||
1261 | } | ||
1262 | |||
1263 | /* clicked the highlight directly */ | ||
1264 | harbaum | 154 | if(map_item->object.type != WAY) { |
1265 | harbaum | 1 | printf(" didn't click way\n"); |
1266 | return FALSE; | ||
1267 | } | ||
1268 | |||
1269 | harbaum | 154 | if(map->selected.object.type == WAY) { |
1270 | harbaum | 1 | printf(" selected item is a way\n"); |
1271 | |||
1272 | harbaum | 154 | if(map_item->object.way == map->selected.object.way) { |
1273 | harbaum | 1 | printf(" requested item is a selected way\n"); |
1274 | return TRUE; | ||
1275 | } | ||
1276 | printf(" but it's not the requested one\n"); | ||
1277 | return FALSE; | ||
1278 | } | ||
1279 | |||
1280 | printf(" selected item is not a way\n"); | ||
1281 | return FALSE; | ||
1282 | } | ||
1283 | |||
1284 | |||
1285 | void map_highlight_refresh(appdata_t *appdata) { | ||
1286 | map_t *map = appdata->map; | ||
1287 | harbaum | 154 | object_t old = map->selected.object; |
1288 | harbaum | 1 | |
1289 | printf("type to refresh is %d\n", old.type); | ||
1290 | harbaum | 154 | if(old.type == ILLEGAL) |
1291 | harbaum | 1 | return; |
1292 | |||
1293 | map_item_deselect(appdata); | ||
1294 | harbaum | 154 | map_object_select(appdata, &old); |
1295 | harbaum | 1 | } |
1296 | |||
1297 | void map_way_delete(appdata_t *appdata, way_t *way) { | ||
1298 | harbaum | 161 | printf("deleting way #" ITEM_ID_FORMAT " from map and osm\n", way->id); |
1299 | harbaum | 1 | |
1300 | /* remove it visually from the screen */ | ||
1301 | map_item_chain_destroy(&way->map_item_chain); | ||
1302 | |||
1303 | /* also remove the visible representation of all nodes (nodes with tags) */ | ||
1304 | node_chain_t *chain = way->node_chain; | ||
1305 | while(chain) { | ||
1306 | if(chain->node->map_item_chain) | ||
1307 | map_item_chain_destroy(&chain->node->map_item_chain); | ||
1308 | |||
1309 | chain = chain->next; | ||
1310 | } | ||
1311 | |||
1312 | /* and mark it "deleted" in the database */ | ||
1313 | osm_way_remove_from_relation(appdata->osm, way); | ||
1314 | osm_way_delete(appdata->osm, &appdata->icon, way, FALSE); | ||
1315 | } | ||
1316 | |||
1317 | static void map_handle_click(appdata_t *appdata, map_t *map) { | ||
1318 | |||
1319 | /* problem: on_item may be the highlight itself! So store it! */ | ||
1320 | map_item_t map_item; | ||
1321 | if(map->pen_down.on_item) map_item = *map->pen_down.on_item; | ||
1322 | harbaum | 154 | else map_item.object.type = ILLEGAL; |
1323 | harbaum | 1 | |
1324 | /* if we aready have something selected, then de-select it */ | ||
1325 | map_item_deselect(appdata); | ||
1326 | |||
1327 | /* select the clicked item (if there was one) */ | ||
1328 | harbaum | 154 | if(map_item.object.type != ILLEGAL) { |
1329 | switch(map_item.object.type) { | ||
1330 | case NODE: | ||
1331 | map_node_select(appdata, map_item.object.node); | ||
1332 | harbaum | 1 | break; |
1333 | |||
1334 | harbaum | 154 | case WAY: |
1335 | map_way_select(appdata, map_item.object.way); | ||
1336 | harbaum | 1 | break; |
1337 | |||
1338 | default: | ||
1339 | harbaum | 154 | g_assert((map_item.object.type == NODE) || |
1340 | (map_item.object.type == WAY)); | ||
1341 | harbaum | 1 | break; |
1342 | } | ||
1343 | } | ||
1344 | } | ||
1345 | |||
1346 | static void map_touchnode_update(appdata_t *appdata, gint x, gint y) { | ||
1347 | map_t *map = appdata->map; | ||
1348 | |||
1349 | map_hl_touchnode_clear(map); | ||
1350 | |||
1351 | node_t *cur_node = NULL; | ||
1352 | |||
1353 | /* the "current node" which is the one we are working on and which */ | ||
1354 | /* should not be highlighted depends on the action */ | ||
1355 | switch(map->action.type) { | ||
1356 | |||
1357 | /* in idle mode the dragged node is not highlighted */ | ||
1358 | case MAP_ACTION_IDLE: | ||
1359 | g_assert(map->pen_down.on_item); | ||
1360 | harbaum | 154 | g_assert(map->pen_down.on_item->object.type == NODE); |
1361 | cur_node = map->pen_down.on_item->object.node; | ||
1362 | harbaum | 1 | break; |
1363 | |||
1364 | default: | ||
1365 | break; | ||
1366 | } | ||
1367 | |||
1368 | |||
1369 | /* check if we are close to one of the other nodes */ | ||
1370 | canvas_window2world(appdata->map->canvas, x, y, &x, &y); | ||
1371 | node_t *node = appdata->osm->node; | ||
1372 | while(!map->touchnode && node) { | ||
1373 | /* don't highlight the dragged node itself and don't highlight */ | ||
1374 | /* deleted ones */ | ||
1375 | if((node != cur_node) && (!(node->flags & OSM_FLAG_DELETED))) { | ||
1376 | gint nx = x - node->lpos.x; | ||
1377 | gint ny = y - node->lpos.y; | ||
1378 | |||
1379 | if((nx < map->style->node.radius) && (ny < map->style->node.radius) && | ||
1380 | (nx*nx + ny*ny < map->style->node.radius * map->style->node.radius)) | ||
1381 | map_hl_touchnode_draw(map, node); | ||
1382 | } | ||
1383 | node = node->next; | ||
1384 | } | ||
1385 | |||
1386 | /* during way creation also nodes of the new way */ | ||
1387 | /* need to be searched */ | ||
1388 | if(!map->touchnode && map->action.way) { | ||
1389 | node_chain_t *chain = map->action.way->node_chain; | ||
1390 | while(!map->touchnode && chain && chain->next) { | ||
1391 | gint nx = x - chain->node->lpos.x; | ||
1392 | gint ny = y - chain->node->lpos.y; | ||
1393 | |||
1394 | if((nx < map->style->node.radius) && (ny < map->style->node.radius) && | ||
1395 | (nx*nx + ny*ny < map->style->node.radius * map->style->node.radius)) | ||
1396 | map_hl_touchnode_draw(map, chain->node); | ||
1397 | |||
1398 | chain = chain->next; | ||
1399 | } | ||
1400 | } | ||
1401 | } | ||
1402 | |||
1403 | static void map_button_press(map_t *map, gint x, gint y) { | ||
1404 | |||
1405 | printf("left button pressed\n"); | ||
1406 | map->pen_down.is = TRUE; | ||
1407 | |||
1408 | /* save press position */ | ||
1409 | map->pen_down.at.x = x; | ||
1410 | map->pen_down.at.y = y; | ||
1411 | map->pen_down.drag = FALSE; // don't assume drag yet | ||
1412 | |||
1413 | /* determine wether this press was on an item */ | ||
1414 | map->pen_down.on_item = map_real_item_at(map, x, y); | ||
1415 | |||
1416 | /* check if the clicked item is a highlighted node as the user */ | ||
1417 | /* might want to drag that */ | ||
1418 | map->pen_down.on_selected_node = FALSE; | ||
1419 | if(map->pen_down.on_item) | ||
1420 | map->pen_down.on_selected_node = | ||
1421 | map_item_is_selected_node(map, map->pen_down.on_item); | ||
1422 | |||
1423 | /* button press */ | ||
1424 | switch(map->action.type) { | ||
1425 | |||
1426 | case MAP_ACTION_WAY_NODE_ADD: | ||
1427 | map_edit_way_node_add_highlight(map, map->pen_down.on_item, x, y); | ||
1428 | break; | ||
1429 | |||
1430 | case MAP_ACTION_WAY_CUT: | ||
1431 | map_edit_way_cut_highlight(map, map->pen_down.on_item, x, y); | ||
1432 | break; | ||
1433 | |||
1434 | case MAP_ACTION_NODE_ADD: | ||
1435 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); | ||
1436 | break; | ||
1437 | |||
1438 | case MAP_ACTION_WAY_ADD: | ||
1439 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); | ||
1440 | map_touchnode_update(map->appdata, x, y); | ||
1441 | break; | ||
1442 | |||
1443 | default: | ||
1444 | break; | ||
1445 | } | ||
1446 | } | ||
1447 | |||
1448 | /* move the background image (wms data) during wms adjustment */ | ||
1449 | static void map_bg_adjust(map_t *map, gint x, gint y) { | ||
1450 | g_assert(map->appdata); | ||
1451 | g_assert(map->appdata->osm); | ||
1452 | g_assert(map->appdata->osm->bounds); | ||
1453 | |||
1454 | x += map->appdata->osm->bounds->min.x + map->bg.offset.x - | ||
1455 | map->pen_down.at.x; | ||
1456 | y += map->appdata->osm->bounds->min.y + map->bg.offset.y - | ||
1457 | map->pen_down.at.y; | ||
1458 | |||
1459 | canvas_image_move(map->bg.item, x, y, map->bg.scale.x, map->bg.scale.y); | ||
1460 | } | ||
1461 | |||
1462 | static void map_button_release(map_t *map, gint x, gint y) { | ||
1463 | map->pen_down.is = FALSE; | ||
1464 | |||
1465 | /* before button release is handled */ | ||
1466 | switch(map->action.type) { | ||
1467 | case MAP_ACTION_BG_ADJUST: | ||
1468 | map_bg_adjust(map, x, y); | ||
1469 | map->bg.offset.x += x - map->pen_down.at.x; | ||
1470 | map->bg.offset.y += y - map->pen_down.at.y; | ||
1471 | break; | ||
1472 | |||
1473 | case MAP_ACTION_IDLE: | ||
1474 | /* check if distance to press is above drag limit */ | ||
1475 | if(!map->pen_down.drag) | ||
1476 | map->pen_down.drag = distance_above(map, x, y, MAP_DRAG_LIMIT); | ||
1477 | |||
1478 | if(!map->pen_down.drag) { | ||
1479 | printf("left button released after click\n"); | ||
1480 | |||
1481 | map_item_t old_sel = map->selected; | ||
1482 | map_handle_click(map->appdata, map); | ||
1483 | |||
1484 | harbaum | 154 | if((old_sel.object.type != ILLEGAL) && |
1485 | (old_sel.object.type == map->selected.object.type) && | ||
1486 | (old_sel.object.ptr == map->selected.object.ptr)) { | ||
1487 | harbaum | 1 | printf("re-selected same item of type %d, " |
1488 | harbaum | 154 | "pushing it to the bottom\n", old_sel.object.type); |
1489 | harbaum | 1 | |
1490 | if(!map->selected.item) { | ||
1491 | printf(" item has no visible representation to push\n"); | ||
1492 | } else { | ||
1493 | canvas_item_to_bottom(map->selected.item); | ||
1494 | |||
1495 | /* update clicked item, to correctly handle the click */ | ||
1496 | map->pen_down.on_item = | ||
1497 | map_real_item_at(map, map->pen_down.at.x, map->pen_down.at.y); | ||
1498 | |||
1499 | map_handle_click(map->appdata, map); | ||
1500 | } | ||
1501 | } | ||
1502 | } else { | ||
1503 | printf("left button released after drag\n"); | ||
1504 | |||
1505 | /* just scroll if we didn't drag an selected item */ | ||
1506 | if(!map->pen_down.on_selected_node) | ||
1507 | map_do_scroll(map, x, y); | ||
1508 | else { | ||
1509 | printf("released after dragging node\n"); | ||
1510 | map_hl_cursor_clear(map); | ||
1511 | |||
1512 | /* now actually move the node */ | ||
1513 | map_edit_node_move(map->appdata, map->pen_down.on_item, x, y); | ||
1514 | } | ||
1515 | } | ||
1516 | break; | ||
1517 | |||
1518 | case MAP_ACTION_NODE_ADD: | ||
1519 | printf("released after NODE ADD\n"); | ||
1520 | map_hl_cursor_clear(map); | ||
1521 | |||
1522 | /* convert mouse position to canvas (world) position */ | ||
1523 | canvas_window2world(map->canvas, x, y, &x, &y); | ||
1524 | |||
1525 | node_t *node = NULL; | ||
1526 | if(!osm_position_within_bounds(map->appdata->osm, x, y)) | ||
1527 | map_outside_error(map->appdata); | ||
1528 | else { | ||
1529 | node = osm_node_new(map->appdata->osm, x, y); | ||
1530 | osm_node_attach(map->appdata->osm, node); | ||
1531 | map_node_draw(map, node); | ||
1532 | } | ||
1533 | map_action_set(map->appdata, MAP_ACTION_IDLE); | ||
1534 | |||
1535 | map_item_deselect(map->appdata); | ||
1536 | |||
1537 | if(node) { | ||
1538 | map_node_select(map->appdata, node); | ||
1539 | |||
1540 | /* let the user specify some tags for the new node */ | ||
1541 | info_dialog(GTK_WIDGET(map->appdata->window), map->appdata, NULL); | ||
1542 | } | ||
1543 | break; | ||
1544 | |||
1545 | case MAP_ACTION_WAY_ADD: | ||
1546 | printf("released after WAY ADD\n"); | ||
1547 | map_hl_cursor_clear(map); | ||
1548 | |||
1549 | map_edit_way_add_segment(map, x, y); | ||
1550 | break; | ||
1551 | |||
1552 | case MAP_ACTION_WAY_NODE_ADD: | ||
1553 | printf("released after WAY NODE ADD\n"); | ||
1554 | map_hl_cursor_clear(map); | ||
1555 | |||
1556 | map_edit_way_node_add(map, x, y); | ||
1557 | break; | ||
1558 | |||
1559 | case MAP_ACTION_WAY_CUT: | ||
1560 | printf("released after WAY CUT\n"); | ||
1561 | map_hl_cursor_clear(map); | ||
1562 | |||
1563 | map_edit_way_cut(map, x, y); | ||
1564 | break; | ||
1565 | |||
1566 | |||
1567 | default: | ||
1568 | break; | ||
1569 | } | ||
1570 | } | ||
1571 | |||
1572 | static gboolean map_button_event(GtkWidget *widget, GdkEventButton *event, | ||
1573 | gpointer data) { | ||
1574 | appdata_t *appdata = (appdata_t*)data; | ||
1575 | map_t *map = appdata->map; | ||
1576 | |||
1577 | if(!appdata->osm) return FALSE; | ||
1578 | |||
1579 | if(event->button == 1) { | ||
1580 | gint x = event->x, y = event->y; | ||
1581 | |||
1582 | if(event->type == GDK_BUTTON_PRESS) | ||
1583 | map_button_press(map, x, y); | ||
1584 | |||
1585 | if(event->type == GDK_BUTTON_RELEASE) | ||
1586 | map_button_release(map, x, y); | ||
1587 | } | ||
1588 | |||
1589 | return FALSE; /* forward to further processing */ | ||
1590 | } | ||
1591 | |||
1592 | static gboolean map_motion_notify_event(GtkWidget *widget, | ||
1593 | GdkEventMotion *event, gpointer data) { | ||
1594 | appdata_t *appdata = (appdata_t*)data; | ||
1595 | map_t *map = appdata->map; | ||
1596 | gint x, y; | ||
1597 | GdkModifierType state; | ||
1598 | |||
1599 | if(!appdata->osm) return FALSE; | ||
1600 | |||
1601 | #ifdef USE_HILDON | ||
1602 | /* reduce update frequency on hildon to keep screen update fluid */ | ||
1603 | static guint32 last_time = 0; | ||
1604 | |||
1605 | harbaum | 24 | if(event->time - last_time < 250) return FALSE; |
1606 | harbaum | 1 | last_time = event->time; |
1607 | #endif | ||
1608 | |||
1609 | if(!map->pen_down.is) | ||
1610 | return FALSE; | ||
1611 | |||
1612 | harbaum | 78 | #ifndef USE_GOOCANVAS |
1613 | harbaum | 1 | /* handle hints, hints are handled by goocanvas directly */ |
1614 | if(event->is_hint) | ||
1615 | gdk_window_get_pointer(event->window, &x, &y, &state); | ||
1616 | else | ||
1617 | #endif | ||
1618 | { | ||
1619 | x = event->x; | ||
1620 | y = event->y; | ||
1621 | state = event->state; | ||
1622 | } | ||
1623 | |||
1624 | /* check if distance to press is above drag limit */ | ||
1625 | if(!map->pen_down.drag) | ||
1626 | map->pen_down.drag = distance_above(map, x, y, MAP_DRAG_LIMIT); | ||
1627 | |||
1628 | /* drag */ | ||
1629 | switch(map->action.type) { | ||
1630 | case MAP_ACTION_BG_ADJUST: | ||
1631 | map_bg_adjust(map, x, y); | ||
1632 | break; | ||
1633 | |||
1634 | case MAP_ACTION_IDLE: | ||
1635 | if(map->pen_down.drag) { | ||
1636 | /* just scroll if we didn't drag an selected item */ | ||
1637 | if(!map->pen_down.on_selected_node) | ||
1638 | map_do_scroll(map, x, y); | ||
1639 | else { | ||
1640 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); | ||
1641 | map_touchnode_update(appdata, x, y); | ||
1642 | } | ||
1643 | } | ||
1644 | break; | ||
1645 | |||
1646 | case MAP_ACTION_NODE_ADD: | ||
1647 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); | ||
1648 | break; | ||
1649 | harbaum | 15 | |
1650 | harbaum | 1 | case MAP_ACTION_WAY_ADD: |
1651 | map_hl_cursor_draw(map, x, y, FALSE, map->style->node.radius); | ||
1652 | map_touchnode_update(appdata, x, y); | ||
1653 | break; | ||
1654 | |||
1655 | case MAP_ACTION_WAY_NODE_ADD: | ||
1656 | map_hl_cursor_clear(map); | ||
1657 | harbaum | 105 | map_item_t *item = map_item_at(map, x, y); |
1658 | harbaum | 1 | if(item) map_edit_way_node_add_highlight(map, item, x, y); |
1659 | break; | ||
1660 | |||
1661 | case MAP_ACTION_WAY_CUT: | ||
1662 | map_hl_cursor_clear(map); | ||
1663 | harbaum | 105 | item = map_item_at(map, x, y); |
1664 | harbaum | 1 | if(item) map_edit_way_cut_highlight(map, item, x, y); |
1665 | break; | ||
1666 | |||
1667 | default: | ||
1668 | break; | ||
1669 | } | ||
1670 | |||
1671 | |||
1672 | return FALSE; /* forward to further processing */ | ||
1673 | } | ||
1674 | |||
1675 | gboolean map_key_press_event(appdata_t *appdata, GdkEventKey *event) { | ||
1676 | |||
1677 | if(!appdata->osm) return FALSE; | ||
1678 | |||
1679 | /* map needs to be there to handle buttons */ | ||
1680 | if(!appdata->map->canvas) | ||
1681 | return FALSE; | ||
1682 | |||
1683 | if(event->type == GDK_KEY_PRESS) { | ||
1684 | gdouble zoom = 0; | ||
1685 | switch(event->keyval) { | ||
1686 | |||
1687 | case GDK_Left: | ||
1688 | map_do_scroll_step(appdata->map, -50, 0); | ||
1689 | break; | ||
1690 | |||
1691 | case GDK_Right: | ||
1692 | map_do_scroll_step(appdata->map, +50, 0); | ||
1693 | break; | ||
1694 | |||
1695 | case GDK_Up: | ||
1696 | map_do_scroll_step(appdata->map, 0, -50); | ||
1697 | break; | ||
1698 | |||
1699 | case GDK_Down: | ||
1700 | map_do_scroll_step(appdata->map, 0, +50); | ||
1701 | break; | ||
1702 | |||
1703 | case GDK_Return: // same as HILDON_HARDKEY_SELECT | ||
1704 | /* if the ok button is enabled, call its function */ | ||
1705 | if(GTK_WIDGET_FLAGS(appdata->iconbar->ok) & GTK_SENSITIVE) | ||
1706 | map_action_ok(appdata); | ||
1707 | /* otherwise if info is enabled call that */ | ||
1708 | else if(GTK_WIDGET_FLAGS(appdata->iconbar->info) & GTK_SENSITIVE) | ||
1709 | info_dialog(GTK_WIDGET(appdata->window), appdata, NULL); | ||
1710 | break; | ||
1711 | |||
1712 | case GDK_Escape: // same as HILDON_HARDKEY_ESC | ||
1713 | /* if the cancel button is enabled, call its function */ | ||
1714 | if(GTK_WIDGET_FLAGS(appdata->iconbar->cancel) & GTK_SENSITIVE) | ||
1715 | map_action_cancel(appdata); | ||
1716 | break; | ||
1717 | |||
1718 | #ifdef USE_HILDON | ||
1719 | case HILDON_HARDKEY_INCREASE: | ||
1720 | #else | ||
1721 | case '+': | ||
1722 | #endif | ||
1723 | zoom = appdata->map->state->zoom; | ||
1724 | zoom *= ZOOM_FACTOR_BUTTON; | ||
1725 | map_set_zoom(appdata->map, zoom, TRUE); | ||
1726 | printf("zoom is now %f (1:%d)\n", zoom, (int)zoom_to_scaledn(zoom)); | ||
1727 | return TRUE; | ||
1728 | break; | ||
1729 | |||
1730 | #ifdef USE_HILDON | ||
1731 | case HILDON_HARDKEY_DECREASE: | ||
1732 | #else | ||
1733 | case '-': | ||
1734 | #endif | ||
1735 | zoom = appdata->map->state->zoom; | ||
1736 | zoom /= ZOOM_FACTOR_BUTTON; | ||
1737 | map_set_zoom(appdata->map, zoom, TRUE); | ||
1738 | printf("zoom is now %f (1:%d)\n", zoom, (int)zoom_to_scaledn(zoom)); | ||
1739 | return TRUE; | ||
1740 | break; | ||
1741 | |||
1742 | default: | ||
1743 | printf("key event %d\n", event->keyval); | ||
1744 | break; | ||
1745 | } | ||
1746 | } | ||
1747 | return FALSE; | ||
1748 | } | ||
1749 | |||
1750 | GtkWidget *map_new(appdata_t *appdata) { | ||
1751 | map_t *map = appdata->map = g_new0(map_t, 1); | ||
1752 | |||
1753 | map->style = style_load(appdata, appdata->settings->style); | ||
1754 | harbaum | 22 | if(!map->style) { |
1755 | errorf(NULL, _("Unable to load valid style, terminating.")); | ||
1756 | g_free(map); | ||
1757 | return NULL; | ||
1758 | } | ||
1759 | harbaum | 1 | |
1760 | if(appdata->project && appdata->project->map_state) { | ||
1761 | printf("Using projects map state\n"); | ||
1762 | map->state = appdata->project->map_state; | ||
1763 | } else { | ||
1764 | printf("Creating new map state\n"); | ||
1765 | map->state = g_new0(map_state_t, 1); | ||
1766 | map->state->zoom = 0.25; | ||
1767 | harbaum | 162 | map->state->detail = 1.0; |
1768 | harbaum | 1 | } |
1769 | |||
1770 | map->state->refcount++; | ||
1771 | |||
1772 | map->pen_down.at.x = -1; | ||
1773 | map->pen_down.at.y = -1; | ||
1774 | map->appdata = appdata; | ||
1775 | map->action.type = MAP_ACTION_IDLE; | ||
1776 | |||
1777 | harbaum | 103 | map->canvas = canvas_new(map->style->background.color); |
1778 | canvas_set_antialias(map->canvas, !appdata->settings->no_antialias); | ||
1779 | harbaum | 1 | |
1780 | harbaum | 103 | GtkWidget *canvas_widget = canvas_get_widget(map->canvas); |
1781 | harbaum | 1 | |
1782 | harbaum | 103 | gtk_widget_set_events(canvas_widget, |
1783 | harbaum | 1 | GDK_BUTTON_PRESS_MASK |
1784 | | GDK_BUTTON_RELEASE_MASK | ||
1785 | | GDK_SCROLL_MASK | ||
1786 | | GDK_POINTER_MOTION_MASK | ||
1787 | | GDK_POINTER_MOTION_HINT_MASK); | ||
1788 | |||
1789 | harbaum | 103 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1790 | harbaum | 1 | "button_press_event", G_CALLBACK(map_button_event), appdata); |
1791 | harbaum | 103 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1792 | harbaum | 1 | "button_release_event", G_CALLBACK(map_button_event), appdata); |
1793 | harbaum | 103 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1794 | harbaum | 1 | "motion_notify_event", G_CALLBACK(map_motion_notify_event), appdata); |
1795 | harbaum | 103 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1796 | harbaum | 1 | "scroll_event", G_CALLBACK(map_scroll_event), appdata); |
1797 | |||
1798 | harbaum | 103 | gtk_signal_connect(GTK_OBJECT(canvas_widget), |
1799 | harbaum | 1 | "destroy", G_CALLBACK(map_destroy_event), appdata); |
1800 | |||
1801 | harbaum | 103 | return canvas_widget; |
1802 | harbaum | 1 | } |
1803 | |||
1804 | void map_init(appdata_t *appdata) { | ||
1805 | map_t *map = appdata->map; | ||
1806 | |||
1807 | /* set initial zoom */ | ||
1808 | map_set_zoom(map, map->state->zoom, FALSE); | ||
1809 | josm_elemstyles_colorize_world(map->style, appdata->osm); | ||
1810 | |||
1811 | map_draw(map, appdata->osm); | ||
1812 | |||
1813 | float mult = appdata->map->style->frisket.mult; | ||
1814 | canvas_set_bounds(map->canvas, | ||
1815 | mult*appdata->osm->bounds->min.x, | ||
1816 | mult*appdata->osm->bounds->min.y, | ||
1817 | mult*appdata->osm->bounds->max.x, | ||
1818 | mult*appdata->osm->bounds->max.y); | ||
1819 | |||
1820 | harbaum | 103 | printf("restore scroll position %d/%d\n", |
1821 | harbaum | 1 | map->state->scroll_offset.x, map->state->scroll_offset.y); |
1822 | |||
1823 | harbaum | 103 | map_limit_scroll(map, CANVAS_UNIT_METER, |
1824 | &map->state->scroll_offset.x, &map->state->scroll_offset.y); | ||
1825 | canvas_scroll_to(map->canvas, CANVAS_UNIT_METER, | ||
1826 | map->state->scroll_offset.x, map->state->scroll_offset.y); | ||
1827 | harbaum | 1 | } |
1828 | |||
1829 | |||
1830 | harbaum | 103 | void map_clear(appdata_t *appdata, gint group_mask) { |
1831 | harbaum | 1 | map_t *map = appdata->map; |
1832 | |||
1833 | printf("freeing map contents\n"); | ||
1834 | |||
1835 | map_free_map_item_chains(appdata); | ||
1836 | |||
1837 | /* remove a possibly existing highlight */ | ||
1838 | map_item_deselect(appdata); | ||
1839 | |||
1840 | harbaum | 103 | canvas_erase(map->canvas, group_mask); |
1841 | harbaum | 1 | } |
1842 | |||
1843 | void map_paint(appdata_t *appdata) { | ||
1844 | map_t *map = appdata->map; | ||
1845 | |||
1846 | harbaum | 78 | /* user may have changed antialias settings */ |
1847 | harbaum | 103 | canvas_set_antialias(map->canvas, !appdata->settings->no_antialias); |
1848 | harbaum | 24 | |
1849 | harbaum | 1 | josm_elemstyles_colorize_world(map->style, appdata->osm); |
1850 | map_draw(map, appdata->osm); | ||
1851 | } | ||
1852 | |||
1853 | /* called from several icons like e.g. "node_add" */ | ||
1854 | void map_action_set(appdata_t *appdata, map_action_t action) { | ||
1855 | printf("map action set to %d\n", action); | ||
1856 | |||
1857 | appdata->map->action.type = action; | ||
1858 | |||
1859 | /* enable/disable ok/cancel buttons */ | ||
1860 | // MAP_ACTION_IDLE=0, NODE_ADD, BG_ADJUST, WAY_ADD, WAY_NODE_ADD, WAY_CUT | ||
1861 | const gboolean ok_state[] = { FALSE, FALSE, TRUE, FALSE, FALSE, FALSE }; | ||
1862 | const gboolean cancel_state[] = { FALSE, TRUE, TRUE, TRUE, TRUE, TRUE }; | ||
1863 | |||
1864 | g_assert(MAP_ACTION_NUM == sizeof(ok_state)/sizeof(gboolean)); | ||
1865 | g_assert(action < sizeof(ok_state)/sizeof(gboolean)); | ||
1866 | |||
1867 | icon_bar_map_cancel_ok(appdata, cancel_state[action], ok_state[action]); | ||
1868 | |||
1869 | switch(action) { | ||
1870 | case MAP_ACTION_BG_ADJUST: | ||
1871 | /* an existing selection only causes confusion ... */ | ||
1872 | map_item_deselect(appdata); | ||
1873 | break; | ||
1874 | |||
1875 | case MAP_ACTION_WAY_ADD: | ||
1876 | printf("starting new way\n"); | ||
1877 | |||
1878 | /* remember if there was a way selected */ | ||
1879 | way_t *way_sel = NULL; | ||
1880 | harbaum | 154 | if(appdata->map->selected.object.type == WAY) |
1881 | way_sel = appdata->map->selected.object.way; | ||
1882 | harbaum | 1 | |
1883 | map_item_deselect(appdata); | ||
1884 | map_edit_way_add_begin(appdata->map, way_sel); | ||
1885 | break; | ||
1886 | |||
1887 | case MAP_ACTION_NODE_ADD: | ||
1888 | map_item_deselect(appdata); | ||
1889 | break; | ||
1890 | |||
1891 | default: | ||
1892 | break; | ||
1893 | } | ||
1894 | |||
1895 | icon_bar_map_action_idle(appdata, action == MAP_ACTION_IDLE); | ||
1896 | gtk_widget_set_sensitive(appdata->menu_item_wms_adjust, | ||
1897 | action == MAP_ACTION_IDLE); | ||
1898 | |||
1899 | const char *str_state[] = { | ||
1900 | NULL, | ||
1901 | _("Place a node"), | ||
1902 | _("Adjust background image position"), | ||
1903 | _("Place first node of new way"), | ||
1904 | _("Place node on selected way"), | ||
1905 | _("Select segment to cut way"), | ||
1906 | }; | ||
1907 | |||
1908 | g_assert(MAP_ACTION_NUM == sizeof(str_state)/sizeof(char*)); | ||
1909 | |||
1910 | statusbar_set(appdata, str_state[action], FALSE); | ||
1911 | } | ||
1912 | |||
1913 | |||
1914 | void map_action_cancel(appdata_t *appdata) { | ||
1915 | map_t *map = appdata->map; | ||
1916 | |||
1917 | switch(map->action.type) { | ||
1918 | case MAP_ACTION_WAY_ADD: | ||
1919 | map_edit_way_add_cancel(map); | ||
1920 | break; | ||
1921 | |||
1922 | case MAP_ACTION_BG_ADJUST: | ||
1923 | /* undo all changes to bg_offset */ | ||
1924 | map->bg.offset.x = appdata->project->wms_offset.x; | ||
1925 | map->bg.offset.y = appdata->project->wms_offset.y; | ||
1926 | |||
1927 | gint x = appdata->osm->bounds->min.x + map->bg.offset.x; | ||
1928 | gint y = appdata->osm->bounds->min.y + map->bg.offset.y; | ||
1929 | canvas_image_move(map->bg.item, x, y, map->bg.scale.x, map->bg.scale.y); | ||
1930 | break; | ||
1931 | |||
1932 | default: | ||
1933 | break; | ||
1934 | } | ||
1935 | |||
1936 | map_action_set(appdata, MAP_ACTION_IDLE); | ||
1937 | } | ||
1938 | |||
1939 | void map_action_ok(appdata_t *appdata) { | ||
1940 | map_t *map = appdata->map; | ||
1941 | |||
1942 | /* reset action now as this erases the statusbar and some */ | ||
1943 | /* of the actions may set it */ | ||
1944 | map_action_t type = map->action.type; | ||
1945 | map_action_set(appdata, MAP_ACTION_IDLE); | ||
1946 | |||
1947 | switch(type) { | ||
1948 | case MAP_ACTION_WAY_ADD: | ||
1949 | map_edit_way_add_ok(map); | ||
1950 | break; | ||
1951 | |||
1952 | case MAP_ACTION_BG_ADJUST: | ||
1953 | /* save changes to bg_offset in project */ | ||
1954 | appdata->project->wms_offset.x = map->bg.offset.x; | ||
1955 | appdata->project->wms_offset.y = map->bg.offset.y; | ||
1956 | appdata->project->dirty = TRUE; | ||
1957 | break; | ||
1958 | |||
1959 | default: | ||
1960 | break; | ||
1961 | } | ||
1962 | } | ||
1963 | |||
1964 | /* called from icon "trash" */ | ||
1965 | void map_delete_selected(appdata_t *appdata) { | ||
1966 | map_t *map = appdata->map; | ||
1967 | |||
1968 | if(!yes_no_f(GTK_WIDGET(appdata->window), | ||
1969 | appdata, MISC_AGAIN_ID_DELETE, MISC_AGAIN_FLAG_DONT_SAVE_NO, | ||
1970 | _("Delete selected object?"), | ||
1971 | _("Do you really want to delete the selected object?"))) | ||
1972 | return; | ||
1973 | |||
1974 | /* work on local copy since de-selecting destroys the selection */ | ||
1975 | map_item_t item = map->selected; | ||
1976 | |||
1977 | /* deleting the selected item de-selects it ... */ | ||
1978 | map_item_deselect(appdata); | ||
1979 | |||
1980 | harbaum | 155 | undo_remember_delete(appdata, &item.object); |
1981 | harbaum | 54 | |
1982 | harbaum | 154 | switch(item.object.type) { |
1983 | case NODE: | ||
1984 | harbaum | 161 | printf("request to delete node #" ITEM_ID_FORMAT "\n", |
1985 | item.object.node->id); | ||
1986 | harbaum | 1 | |
1987 | /* check if this node is part of a way with two nodes only. */ | ||
1988 | /* we cannot delete this as this would also delete the way */ | ||
1989 | harbaum | 154 | way_chain_t *way_chain = osm_node_to_way(appdata->osm, item.object.node); |
1990 | harbaum | 1 | if(way_chain) { |
1991 | gboolean short_way = FALSE; | ||
1992 | |||
1993 | /* free the chain of ways */ | ||
1994 | while(way_chain && !short_way) { | ||
1995 | way_chain_t *next = way_chain->next; | ||
1996 | |||
1997 | if(osm_way_number_of_nodes(way_chain->way) <= 2) | ||
1998 | short_way = TRUE; | ||
1999 | |||
2000 | g_free(way_chain); | ||
2001 | way_chain = next; | ||
2002 | } | ||
2003 | |||
2004 | if(short_way) { | ||
2005 | if(!yes_no_f(GTK_WIDGET(appdata->window), NULL, 0, 0, | ||
2006 | _("Delete node in short way(s)?"), | ||
2007 | _("Deleting this node will also delete one or more ways " | ||
2008 | "since they'll contain only one node afterwards. " | ||
2009 | "Do you really want this?"))) | ||
2010 | return; | ||
2011 | } | ||
2012 | } | ||
2013 | |||
2014 | /* remove it visually from the screen */ | ||
2015 | harbaum | 154 | map_item_chain_destroy(&item.object.node->map_item_chain); |
2016 | harbaum | 1 | |
2017 | /* and mark it "deleted" in the database */ | ||
2018 | harbaum | 154 | osm_node_remove_from_relation(appdata->osm, item.object.node); |
2019 | harbaum | 1 | way_chain_t *chain = osm_node_delete(appdata->osm, |
2020 | harbaum | 154 | &appdata->icon, item.object.node, FALSE, TRUE); |
2021 | harbaum | 1 | |
2022 | /* redraw all affected ways */ | ||
2023 | while(chain) { | ||
2024 | way_chain_t *next = chain->next; | ||
2025 | |||
2026 | if(osm_way_number_of_nodes(chain->way) == 1) { | ||
2027 | /* this way now only contains one node and thus isn't a valid */ | ||
2028 | /* way anymore. So it'll also get deleted (which in turn may */ | ||
2029 | /* cause other nodes to be deleted as well) */ | ||
2030 | map_way_delete(appdata, chain->way); | ||
2031 | } else { | ||
2032 | map_item_t item; | ||
2033 | harbaum | 154 | item.object.type = WAY; |
2034 | item.object.way = chain->way; | ||
2035 | harbaum | 1 | map_item_redraw(appdata, &item); |
2036 | } | ||
2037 | |||
2038 | g_free(chain); | ||
2039 | |||
2040 | chain = next; | ||
2041 | } | ||
2042 | |||
2043 | break; | ||
2044 | |||
2045 | harbaum | 154 | case WAY: |
2046 | harbaum | 161 | printf("request to delete way #" ITEM_ID_FORMAT "\n", item.object.way->id); |
2047 | harbaum | 154 | map_way_delete(appdata, item.object.way); |
2048 | harbaum | 1 | break; |
2049 | |||
2050 | default: | ||
2051 | harbaum | 154 | g_assert((item.object.type == NODE) || |
2052 | (item.object.type == WAY)); | ||
2053 | harbaum | 1 | break; |
2054 | } | ||
2055 | } | ||
2056 | |||
2057 | /* ----------------------- track related stuff ----------------------- */ | ||
2058 | |||
2059 | harbaum | 156 | static gboolean track_pos2lpos(bounds_t *bounds, pos_t *pos, lpos_t *lpos) { |
2060 | pos2lpos(bounds, pos, lpos); | ||
2061 | |||
2062 | /* check if point is within bounds */ | ||
2063 | return ((lpos->x >= bounds->min.x) && (lpos->x <= bounds->max.x) && | ||
2064 | (lpos->y >= bounds->min.y) && (lpos->y <= bounds->max.y)); | ||
2065 | } | ||
2066 | |||
2067 | harbaum | 1 | void map_track_draw_seg(map_t *map, track_seg_t *seg) { |
2068 | harbaum | 156 | bounds_t *bounds = map->appdata->osm->bounds; |
2069 | |||
2070 | harbaum | 1 | /* a track_seg needs at least 2 points to be drawn */ |
2071 | guint pnum = track_seg_points(seg); | ||
2072 | printf("seg of length %d\n", pnum); | ||
2073 | |||
2074 | harbaum | 156 | if(!pnum) |
2075 | return; | ||
2076 | harbaum | 1 | |
2077 | harbaum | 156 | /* nothing should have been drawn by now ... */ |
2078 | g_assert(!seg->item_chain); | ||
2079 | |||
2080 | track_item_chain_t **itemP = &seg->item_chain; | ||
2081 | track_point_t *track_point = seg->track_point; | ||
2082 | while(track_point) { | ||
2083 | lpos_t lpos; | ||
2084 | harbaum | 1 | |
2085 | harbaum | 156 | /* skip all points not on screen */ |
2086 | track_point_t *last = NULL; | ||
2087 | while(track_point && !track_pos2lpos(bounds, &track_point->pos, &lpos)) { | ||
2088 | last = track_point; | ||
2089 | track_point = track_point->next; | ||
2090 | } | ||
2091 | |||
2092 | int visible = 0; | ||
2093 | |||
2094 | /* count nodes that _are_ on screen */ | ||
2095 | track_point_t *tmp = track_point; | ||
2096 | while(tmp && track_pos2lpos(bounds, &tmp->pos, &lpos)) { | ||
2097 | tmp = tmp->next; | ||
2098 | visible++; | ||
2099 | } | ||
2100 | |||
2101 | /* actually start drawing with the last position that was offscreen */ | ||
2102 | /* so the track nicely enters the viewing area */ | ||
2103 | if(last) { | ||
2104 | track_point = last; | ||
2105 | visible++; | ||
2106 | } | ||
2107 | |||
2108 | /* also use last one that's offscreen to nicely leave the visible area */ | ||
2109 | if(tmp && tmp->next) | ||
2110 | visible++; | ||
2111 | |||
2112 | harbaum | 1 | /* allocate space for nodes */ |
2113 | harbaum | 156 | canvas_points_t *points = canvas_points_new(visible); |
2114 | harbaum | 1 | |
2115 | harbaum | 156 | printf("visible are %d\n", visible); |
2116 | int point; | ||
2117 | for(point=0;point<visible;point++) { | ||
2118 | track_pos2lpos(bounds, &track_point->pos, &lpos); | ||
2119 | |||
2120 | points->coords[2*point+0] = lpos.x; | ||
2121 | points->coords[2*point+1] = lpos.y; | ||
2122 | harbaum | 1 | track_point = track_point->next; |
2123 | } | ||
2124 | |||
2125 | harbaum | 156 | *itemP = g_new0(track_item_chain_t, 1); |
2126 | (*itemP)->item = canvas_polyline_new(map->canvas, CANVAS_GROUP_TRACK, | ||
2127 | points, map->style->track.width, map->style->track.color); | ||
2128 | itemP = &(*itemP)->next; | ||
2129 | harbaum | 1 | |
2130 | canvas_points_free(points); | ||
2131 | } | ||
2132 | } | ||
2133 | |||
2134 | harbaum | 156 | /* update the last visible fragment of this segment since a */ |
2135 | /* gps position may have been added */ | ||
2136 | harbaum | 1 | void map_track_update_seg(map_t *map, track_seg_t *seg) { |
2137 | harbaum | 156 | bounds_t *bounds = map->appdata->osm->bounds; |
2138 | |||
2139 | printf("-- APPENDING TO TRACK --\n"); | ||
2140 | |||
2141 | harbaum | 1 | /* a track_seg needs at least 2 points to be drawn */ |
2142 | guint pnum = track_seg_points(seg); | ||
2143 | printf("seg of length %d\n", pnum); | ||
2144 | |||
2145 | harbaum | 156 | /* there are two cases: either the second last point was on screen */ |
2146 | /* or it wasn't. We'll have to start a new screen item if the latter */ | ||
2147 | /* is the case */ | ||
2148 | |||
2149 | /* search last point */ | ||
2150 | track_point_t *begin = seg->track_point, *second_last = seg->track_point; | ||
2151 | lpos_t lpos; | ||
2152 | while(second_last && second_last->next && second_last->next->next) { | ||
2153 | if(!track_pos2lpos(bounds, &second_last->pos, &lpos)) | ||
2154 | begin = second_last; | ||
2155 | |||
2156 | second_last = second_last->next; | ||
2157 | } | ||
2158 | track_point_t *last = second_last->next; | ||
2159 | |||
2160 | /* since we are updating an existing track, it sure has at least two */ | ||
2161 | /* points, second_last must be valid and its "next" (last) also */ | ||
2162 | g_assert(second_last); | ||
2163 | g_assert(last); | ||
2164 | |||
2165 | /* check if the last and second_last points are visible */ | ||
2166 | gboolean last_is_visible = | ||
2167 | track_pos2lpos(bounds, &last->pos, &lpos); | ||
2168 | gboolean second_last_is_visible = | ||
2169 | track_pos2lpos(bounds, &second_last->pos, &lpos); | ||
2170 | |||
2171 | /* if both are invisible, then nothing has changed on screen */ | ||
2172 | if(!last_is_visible && !second_last_is_visible) { | ||
2173 | printf("second_last and last entry are invisible -> doing nothing\n"); | ||
2174 | return; | ||
2175 | } | ||
2176 | |||
2177 | /* search last element in item chain */ | ||
2178 | track_item_chain_t *item = seg->item_chain; | ||
2179 | while(item && item->next) | ||
2180 | item = item->next; | ||
2181 | |||
2182 | if(second_last_is_visible) { | ||
2183 | /* there must be something already on the screen and there must */ | ||
2184 | /* be visible nodes in the chain */ | ||
2185 | g_assert(item); | ||
2186 | g_assert(begin); | ||
2187 | |||
2188 | printf("second_last is visible -> append\n"); | ||
2189 | harbaum | 1 | |
2190 | harbaum | 156 | /* count points to be placed */ |
2191 | int npoints = 0; | ||
2192 | track_point_t *tmp = begin; | ||
2193 | while(tmp) { | ||
2194 | tmp = tmp->next; | ||
2195 | npoints++; | ||
2196 | } | ||
2197 | |||
2198 | printf("updating last segment to %d points\n", npoints); | ||
2199 | |||
2200 | canvas_points_t *points = canvas_points_new(npoints); | ||
2201 | |||
2202 | gint point = 0; | ||
2203 | while(begin) { | ||
2204 | track_pos2lpos(bounds, &begin->pos, &lpos); | ||
2205 | canvas_point_set_pos(points, point++, &lpos); | ||
2206 | begin = begin->next; | ||
2207 | } | ||
2208 | harbaum | 1 | |
2209 | harbaum | 156 | canvas_item_set_points(item->item, points); |
2210 | canvas_points_free(points); | ||
2211 | |||
2212 | } else { | ||
2213 | printf("second last is invisible -> start new screen segment\n"); | ||
2214 | |||
2215 | /* the search for the "begin" ends with the second_last item */ | ||
2216 | /* verify the last one also */ | ||
2217 | if(begin->next && !track_pos2lpos(bounds, &begin->next->pos, &lpos)) | ||
2218 | begin = begin->next; | ||
2219 | |||
2220 | item->next = g_new0(track_item_chain_t, 1); | ||
2221 | item = item->next; | ||
2222 | |||
2223 | /* count points to be placed */ | ||
2224 | int npoints = 0; | ||
2225 | track_point_t *tmp = begin; | ||
2226 | while(tmp) { | ||
2227 | tmp = tmp->next; | ||
2228 | npoints++; | ||
2229 | harbaum | 1 | } |
2230 | harbaum | 156 | |
2231 | printf("attaching new segment with %d points\n", npoints); | ||
2232 | |||
2233 | canvas_points_t *points = canvas_points_new(npoints); | ||
2234 | |||
2235 | gint point = 0; | ||
2236 | while(begin) { | ||
2237 | track_pos2lpos(bounds, &begin->pos, &lpos); | ||
2238 | canvas_point_set_pos(points, point++, &lpos); | ||
2239 | begin = begin->next; | ||
2240 | } | ||
2241 | harbaum | 1 | |
2242 | harbaum | 156 | item->item = canvas_polyline_new(map->canvas, CANVAS_GROUP_TRACK, |
2243 | points, map->style->track.width, map->style->track.color); | ||
2244 | |||
2245 | harbaum | 1 | canvas_points_free(points); |
2246 | } | ||
2247 | harbaum | 156 | |
2248 | harbaum | 1 | } |
2249 | |||
2250 | void map_track_draw(map_t *map, track_t *track) { | ||
2251 | track_seg_t *seg = track->track_seg; | ||
2252 | |||
2253 | /* draw all segments */ | ||
2254 | while(seg) { | ||
2255 | map_track_draw_seg(map, seg); | ||
2256 | seg = seg->next; | ||
2257 | } | ||
2258 | } | ||
2259 | |||
2260 | void map_track_remove(appdata_t *appdata) { | ||
2261 | track_t *track = appdata->track.track; | ||
2262 | |||
2263 | printf("removing track\n"); | ||
2264 | |||
2265 | g_assert(track); | ||
2266 | |||
2267 | /* remove all segments */ | ||
2268 | track_seg_t *seg = track->track_seg; | ||
2269 | while(seg) { | ||
2270 | harbaum | 156 | track_item_chain_t *item = seg->item_chain; |
2271 | while(item) { | ||
2272 | track_item_chain_t *next = item->next; | ||
2273 | canvas_item_destroy(item->item); | ||
2274 | item = next; | ||
2275 | harbaum | 1 | } |
2276 | harbaum | 156 | |
2277 | seg->item_chain = NULL; | ||
2278 | harbaum | 1 | seg = seg->next; |
2279 | } | ||
2280 | } | ||
2281 | |||
2282 | harbaum | 156 | void map_track_pos(appdata_t *appdata, pos_t *pos) { |
2283 | harbaum | 1 | if(appdata->track.gps_item) { |
2284 | canvas_item_destroy(appdata->track.gps_item); | ||
2285 | appdata->track.gps_item = NULL; | ||
2286 | } | ||
2287 | |||
2288 | harbaum | 156 | if(pos) { |
2289 | lpos_t lpos; | ||
2290 | pos2lpos(appdata->osm->bounds, pos, &lpos); | ||
2291 | |||
2292 | harbaum | 103 | appdata->track.gps_item = |
2293 | canvas_circle_new(appdata->map->canvas, CANVAS_GROUP_GPS, | ||
2294 | harbaum | 156 | lpos.x, lpos.y, appdata->map->style->track.width/2.0, 0, |
2295 | harbaum | 22 | appdata->map->style->track.gps_color, NO_COLOR); |
2296 | harbaum | 156 | } |
2297 | harbaum | 1 | } |
2298 | |||
2299 | /* ------------------- map background ------------------ */ | ||
2300 | |||
2301 | void map_remove_bg_image(map_t *map) { | ||
2302 | if(!map) return; | ||
2303 | |||
2304 | if(map->bg.item) { | ||
2305 | canvas_item_destroy(map->bg.item); | ||
2306 | map->bg.item = NULL; | ||
2307 | } | ||
2308 | } | ||
2309 | |||
2310 | static gint map_bg_item_destroy_event(GtkWidget *widget, gpointer data) { | ||
2311 | map_t *map = (map_t*)data; | ||
2312 | |||
2313 | /* destroying background item */ | ||
2314 | |||
2315 | map->bg.item = NULL; | ||
2316 | if(map->bg.pix) { | ||
2317 | printf("destroying background item\n"); | ||
2318 | gdk_pixbuf_unref(map->bg.pix); | ||
2319 | map->bg.pix = NULL; | ||
2320 | } | ||
2321 | return FALSE; | ||
2322 | } | ||
2323 | |||
2324 | void map_set_bg_image(map_t *map, char *filename) { | ||
2325 | bounds_t *bounds = map->appdata->osm->bounds; | ||
2326 | |||
2327 | map_remove_bg_image(map); | ||
2328 | |||
2329 | map->bg.pix = gdk_pixbuf_new_from_file(filename, NULL); | ||
2330 | |||
2331 | /* calculate required scale factor */ | ||
2332 | map->bg.scale.x = (float)(bounds->max.x - bounds->min.x)/ | ||
2333 | (float)gdk_pixbuf_get_width(map->bg.pix); | ||
2334 | map->bg.scale.y = (float)(bounds->max.y - bounds->min.y)/ | ||
2335 | (float)gdk_pixbuf_get_height(map->bg.pix); | ||
2336 | |||
2337 | harbaum | 103 | map->bg.item = canvas_image_new(map->canvas, CANVAS_GROUP_BG, map->bg.pix, |
2338 | harbaum | 1 | bounds->min.x, bounds->min.y, map->bg.scale.x, map->bg.scale.y); |
2339 | |||
2340 | canvas_item_destroy_connect(map->bg.item, | ||
2341 | G_CALLBACK(map_bg_item_destroy_event), map); | ||
2342 | } | ||
2343 | |||
2344 | |||
2345 | /* -------- hide and show objects (for performance reasons) ------- */ | ||
2346 | |||
2347 | void map_hide_selected(appdata_t *appdata) { | ||
2348 | map_t *map = appdata->map; | ||
2349 | if(!map) return; | ||
2350 | |||
2351 | harbaum | 154 | if(map->selected.object.type != WAY) { |
2352 | harbaum | 1 | printf("selected item is not a way\n"); |
2353 | return; | ||
2354 | } | ||
2355 | |||
2356 | harbaum | 154 | way_t *way = map->selected.object.way; |
2357 | harbaum | 161 | printf("hiding way #" ITEM_ID_FORMAT "\n", way->id); |
2358 | harbaum | 1 | |
2359 | map_item_deselect(appdata); | ||
2360 | way->flags |= OSM_FLAG_HIDDEN; | ||
2361 | map_item_chain_destroy(&way->map_item_chain); | ||
2362 | |||
2363 | gtk_widget_set_sensitive(appdata->menu_item_map_show_all, TRUE); | ||
2364 | } | ||
2365 | |||
2366 | void map_show_all(appdata_t *appdata) { | ||
2367 | map_t *map = appdata->map; | ||
2368 | if(!map) return; | ||
2369 | |||
2370 | way_t *way = appdata->osm->way; | ||
2371 | while(way) { | ||
2372 | if(way->flags & OSM_FLAG_HIDDEN) { | ||
2373 | way->flags &= ~OSM_FLAG_HIDDEN; | ||
2374 | map_way_draw(map, way); | ||
2375 | } | ||
2376 | |||
2377 | way = way->next; | ||
2378 | } | ||
2379 | |||
2380 | gtk_widget_set_sensitive(appdata->menu_item_map_show_all, FALSE); | ||
2381 | } | ||
2382 | harbaum | 153 | |
2383 | harbaum | 162 | static void map_detail_change(map_t *map, float detail) { |
2384 | appdata_t *appdata = map->appdata; | ||
2385 | |||
2386 | /* deselecting anything allows us not to care about automatic deselection */ | ||
2387 | /* as well as items becoming invisible by the detail change */ | ||
2388 | map_item_deselect(appdata); | ||
2389 | |||
2390 | map->state->detail = detail; | ||
2391 | printf("changing detail factor to %f\n", map->state->detail); | ||
2392 | |||
2393 | banner_busy_start(appdata, 1, "Redrawing..."); | ||
2394 | map_clear(appdata, MAP_LAYER_OBJECTS_ONLY); | ||
2395 | map_paint(appdata); | ||
2396 | banner_busy_stop(appdata); | ||
2397 | } | ||
2398 | |||
2399 | #define DETAIL_STEP 1.5 | ||
2400 | |||
2401 | void map_detail_increase(map_t *map) { | ||
2402 | if(!map) return; | ||
2403 | map_detail_change(map, map->state->detail * DETAIL_STEP); | ||
2404 | } | ||
2405 | |||
2406 | void map_detail_decrease(map_t *map) { | ||
2407 | if(!map) return; | ||
2408 | map_detail_change(map, map->state->detail / DETAIL_STEP); | ||
2409 | } | ||
2410 | |||
2411 | void map_detail_normal(map_t *map) { | ||
2412 | if(!map) return; | ||
2413 | map_detail_change(map, 1.0); | ||
2414 | } | ||
2415 | |||
2416 | achadwick | 13 | // vim:et:ts=8:sw=2:sts=2:ai |