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Draw exact border in osm-gps-map
1 | harbaum | 200 | /* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4 -*- */ |
2 | /* vim:set et sw=4 ts=4 cino=t0,(0: */ | ||
3 | /* | ||
4 | * osm-gps-map.c | ||
5 | * Copyright (C) Marcus Bauer 2008 <marcus.bauer@gmail.com> | ||
6 | * Copyright (C) John Stowers 2009 <john.stowers@gmail.com> | ||
7 | * | ||
8 | * Contributions by | ||
9 | * Everaldo Canuto 2009 <everaldo.canuto@gmail.com> | ||
10 | * | ||
11 | * osm-gps-map.c is free software: you can redistribute it and/or modify it | ||
12 | * under the terms of the GNU General Public License as published by the | ||
13 | * Free Software Foundation, either version 3 of the License, or | ||
14 | * (at your option) any later version. | ||
15 | * | ||
16 | * osm-gps-map.c is distributed in the hope that it will be useful, but | ||
17 | * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | ||
19 | * See the GNU General Public License for more details. | ||
20 | * | ||
21 | * You should have received a copy of the GNU General Public License along | ||
22 | * with this program. If not, see <http://www.gnu.org/licenses/>. | ||
23 | */ | ||
24 | |||
25 | #include "config.h" | ||
26 | |||
27 | #include <fcntl.h> | ||
28 | #include <math.h> | ||
29 | #include <unistd.h> | ||
30 | #include <stdio.h> | ||
31 | #include <stdlib.h> | ||
32 | #include <string.h> | ||
33 | |||
34 | #include <gdk/gdk.h> | ||
35 | #include <glib.h> | ||
36 | #include <glib/gprintf.h> | ||
37 | #include <libsoup/soup.h> | ||
38 | |||
39 | #include "converter.h" | ||
40 | #include "osm-gps-map-types.h" | ||
41 | #include "osm-gps-map.h" | ||
42 | |||
43 | #ifdef USE_CAIRO | ||
44 | #include <cairo.h> | ||
45 | #endif | ||
46 | |||
47 | #define ENABLE_DEBUG 0 | ||
48 | |||
49 | #define EXTRA_BORDER (TILESIZE / 2) | ||
50 | |||
51 | struct _OsmGpsMapPrivate | ||
52 | { | ||
53 | GHashTable *tile_queue; | ||
54 | GHashTable *missing_tiles; | ||
55 | GHashTable *tile_cache; | ||
56 | |||
57 | int map_zoom; | ||
58 | int max_zoom; | ||
59 | int min_zoom; | ||
60 | gboolean map_auto_center; | ||
61 | gboolean map_auto_download; | ||
62 | int map_x; | ||
63 | int map_y; | ||
64 | |||
65 | /* Latitude and longitude of the center of the map, in radians */ | ||
66 | gfloat center_rlat; | ||
67 | gfloat center_rlon; | ||
68 | |||
69 | guint max_tile_cache_size; | ||
70 | /* Incremented at each redraw */ | ||
71 | guint redraw_cycle; | ||
72 | /* ID of the idle redraw operation */ | ||
73 | guint idle_map_redraw; | ||
74 | |||
75 | //how we download tiles | ||
76 | SoupSession *soup_session; | ||
77 | char *proxy_uri; | ||
78 | |||
79 | //where downloaded tiles are cached | ||
80 | char *cache_dir; | ||
81 | gboolean cache_dir_is_full_path; | ||
82 | |||
83 | //contains flags indicating the various special characters | ||
84 | //the uri string contains, that will be replaced when calculating | ||
85 | //the uri to download. | ||
86 | char *repo_uri; | ||
87 | int uri_format; | ||
88 | //flag indicating if the map source is located on the google | ||
89 | gboolean the_google; | ||
90 | |||
91 | //gps tracking state | ||
92 | gboolean record_trip_history; | ||
93 | gboolean show_trip_history; | ||
94 | GSList *trip_history; | ||
95 | coord_t *gps; | ||
96 | gboolean gps_valid; | ||
97 | |||
98 | //additional images or tracks added to the map | ||
99 | GSList *tracks; | ||
100 | GSList *images; | ||
101 | |||
102 | //Used for storing the joined tiles | ||
103 | GdkPixmap *pixmap; | ||
104 | GdkGC *gc_map; | ||
105 | |||
106 | //The tile painted when one cannot be found | ||
107 | //GdkPixbuf *missing_tile; | ||
108 | |||
109 | //For tracking click and drag | ||
110 | int drag_counter; | ||
111 | int drag_mouse_dx; | ||
112 | int drag_mouse_dy; | ||
113 | int drag_start_mouse_x; | ||
114 | int drag_start_mouse_y; | ||
115 | int drag_start_map_x; | ||
116 | int drag_start_map_y; | ||
117 | |||
118 | //for customizing the redering of the gps track | ||
119 | int ui_gps_track_width; | ||
120 | int ui_gps_point_inner_radius; | ||
121 | int ui_gps_point_outer_radius; | ||
122 | |||
123 | guint is_disposed : 1; | ||
124 | guint dragging : 1; | ||
125 | guint center_coord_set : 1; | ||
126 | }; | ||
127 | |||
128 | #define OSM_GPS_MAP_PRIVATE(o) (OSM_GPS_MAP (o)->priv) | ||
129 | |||
130 | typedef struct | ||
131 | { | ||
132 | GdkPixbuf *pixbuf; | ||
133 | /* We keep track of the number of the redraw cycle this tile was last used, | ||
134 | * so that osm_gps_map_purge_cache() can remove the older ones */ | ||
135 | guint redraw_cycle; | ||
136 | } OsmCachedTile; | ||
137 | |||
138 | enum | ||
139 | { | ||
140 | PROP_0, | ||
141 | |||
142 | PROP_AUTO_CENTER, | ||
143 | PROP_RECORD_TRIP_HISTORY, | ||
144 | PROP_SHOW_TRIP_HISTORY, | ||
145 | PROP_AUTO_DOWNLOAD, | ||
146 | PROP_REPO_URI, | ||
147 | PROP_PROXY_URI, | ||
148 | PROP_TILE_CACHE_DIR, | ||
149 | PROP_TILE_CACHE_DIR_IS_FULL_PATH, | ||
150 | PROP_ZOOM, | ||
151 | PROP_MAX_ZOOM, | ||
152 | PROP_MIN_ZOOM, | ||
153 | PROP_LATITUDE, | ||
154 | PROP_LONGITUDE, | ||
155 | PROP_MAP_X, | ||
156 | PROP_MAP_Y, | ||
157 | PROP_TILES_QUEUED, | ||
158 | PROP_GPS_TRACK_WIDTH, | ||
159 | PROP_GPS_POINT_R1, | ||
160 | PROP_GPS_POINT_R2 | ||
161 | }; | ||
162 | |||
163 | G_DEFINE_TYPE (OsmGpsMap, osm_gps_map, GTK_TYPE_DRAWING_AREA); | ||
164 | |||
165 | /* | ||
166 | * Drawing function forward defintions | ||
167 | */ | ||
168 | static gchar *replace_string(const gchar *src, const gchar *from, const gchar *to); | ||
169 | static void inspect_map_uri(OsmGpsMap *map); | ||
170 | static gchar *replace_map_uri(OsmGpsMap *map, const gchar *uri, int zoom, int x, int y); | ||
171 | static void osm_gps_map_print_images (OsmGpsMap *map); | ||
172 | static void osm_gps_map_draw_gps_point (OsmGpsMap *map); | ||
173 | static void osm_gps_map_blit_tile(OsmGpsMap *map, GdkPixbuf *pixbuf, int offset_x, int offset_y); | ||
174 | static void osm_gps_map_download_tile (OsmGpsMap *map, int zoom, int x, int y, gboolean redraw); | ||
175 | static void osm_gps_map_load_tile (OsmGpsMap *map, int zoom, int x, int y, int offset_x, int offset_y); | ||
176 | static void osm_gps_map_fill_tiles_pixel (OsmGpsMap *map); | ||
177 | static gboolean osm_gps_map_map_redraw (OsmGpsMap *map); | ||
178 | static void osm_gps_map_map_redraw_idle (OsmGpsMap *map); | ||
179 | |||
180 | static void | ||
181 | cached_tile_free (OsmCachedTile *tile) | ||
182 | { | ||
183 | g_object_unref (tile->pixbuf); | ||
184 | g_slice_free (OsmCachedTile, tile); | ||
185 | } | ||
186 | |||
187 | /* | ||
188 | * Description: | ||
189 | * Find and replace text within a string. | ||
190 | * | ||
191 | * Parameters: | ||
192 | * src (in) - pointer to source string | ||
193 | * from (in) - pointer to search text | ||
194 | * to (in) - pointer to replacement text | ||
195 | * | ||
196 | * Returns: | ||
197 | * Returns a pointer to dynamically-allocated memory containing string | ||
198 | * with occurences of the text pointed to by 'from' replaced by with the | ||
199 | * text pointed to by 'to'. | ||
200 | */ | ||
201 | static gchar * | ||
202 | replace_string(const gchar *src, const gchar *from, const gchar *to) | ||
203 | { | ||
204 | size_t size = strlen(src) + 1; | ||
205 | size_t fromlen = strlen(from); | ||
206 | size_t tolen = strlen(to); | ||
207 | |||
208 | /* Allocate the first chunk with enough for the original string. */ | ||
209 | gchar *value = g_malloc(size); | ||
210 | |||
211 | |||
212 | /* We need to return 'value', so let's make a copy to mess around with. */ | ||
213 | gchar *dst = value; | ||
214 | |||
215 | if ( value != NULL ) | ||
216 | { | ||
217 | for ( ;; ) | ||
218 | { | ||
219 | /* Try to find the search text. */ | ||
220 | const gchar *match = g_strstr_len(src, size, from); | ||
221 | if ( match != NULL ) | ||
222 | { | ||
223 | gchar *temp; | ||
224 | /* Find out how many characters to copy up to the 'match'. */ | ||
225 | size_t count = match - src; | ||
226 | |||
227 | |||
228 | /* Calculate the total size the string will be after the | ||
229 | * replacement is performed. */ | ||
230 | size += tolen - fromlen; | ||
231 | |||
232 | temp = g_realloc(value, size); | ||
233 | if ( temp == NULL ) | ||
234 | { | ||
235 | g_free(value); | ||
236 | return NULL; | ||
237 | } | ||
238 | |||
239 | /* we'll want to return 'value' eventually, so let's point it | ||
240 | * to the memory that we are now working with. | ||
241 | * And let's not forget to point to the right location in | ||
242 | * the destination as well. */ | ||
243 | dst = temp + (dst - value); | ||
244 | value = temp; | ||
245 | |||
246 | /* | ||
247 | * Copy from the source to the point where we matched. Then | ||
248 | * move the source pointer ahead by the amount we copied. And | ||
249 | * move the destination pointer ahead by the same amount. | ||
250 | */ | ||
251 | g_memmove(dst, src, count); | ||
252 | src += count; | ||
253 | dst += count; | ||
254 | |||
255 | /* Now copy in the replacement text 'to' at the position of | ||
256 | * the match. Adjust the source pointer by the text we replaced. | ||
257 | * Adjust the destination pointer by the amount of replacement | ||
258 | * text. */ | ||
259 | g_memmove(dst, to, tolen); | ||
260 | src += fromlen; | ||
261 | dst += tolen; | ||
262 | } | ||
263 | else | ||
264 | { | ||
265 | /* | ||
266 | * Copy any remaining part of the string. This includes the null | ||
267 | * termination character. | ||
268 | */ | ||
269 | strcpy(dst, src); | ||
270 | break; | ||
271 | } | ||
272 | } | ||
273 | } | ||
274 | return value; | ||
275 | } | ||
276 | |||
277 | static void | ||
278 | map_convert_coords_to_quadtree_string(OsmGpsMap *map, gint x, gint y, gint zoomlevel, | ||
279 | gchar *buffer, const gchar initial, | ||
280 | const gchar *const quadrant) | ||
281 | { | ||
282 | gchar *ptr = buffer; | ||
283 | gint n; | ||
284 | |||
285 | if (initial) | ||
286 | *ptr++ = initial; | ||
287 | |||
288 | for(n = zoomlevel-1; n >= 0; n--) | ||
289 | { | ||
290 | gint xbit = (x >> n) & 1; | ||
291 | gint ybit = (y >> n) & 1; | ||
292 | *ptr++ = quadrant[xbit + 2 * ybit]; | ||
293 | } | ||
294 | |||
295 | *ptr++ = '\0'; | ||
296 | } | ||
297 | |||
298 | |||
299 | static void | ||
300 | inspect_map_uri(OsmGpsMap *map) | ||
301 | { | ||
302 | OsmGpsMapPrivate *priv = map->priv; | ||
303 | |||
304 | if (g_strrstr(priv->repo_uri, URI_MARKER_X)) | ||
305 | priv->uri_format |= URI_HAS_X; | ||
306 | |||
307 | if (g_strrstr(priv->repo_uri, URI_MARKER_Y)) | ||
308 | priv->uri_format |= URI_HAS_Y; | ||
309 | |||
310 | if (g_strrstr(priv->repo_uri, URI_MARKER_Z)) | ||
311 | priv->uri_format |= URI_HAS_Z; | ||
312 | |||
313 | if (g_strrstr(priv->repo_uri, URI_MARKER_S)) | ||
314 | priv->uri_format |= URI_HAS_S; | ||
315 | |||
316 | if (g_strrstr(priv->repo_uri, URI_MARKER_Q)) | ||
317 | priv->uri_format |= URI_HAS_Q; | ||
318 | |||
319 | if (g_strrstr(priv->repo_uri, URI_MARKER_Q0)) | ||
320 | priv->uri_format |= URI_HAS_Q0; | ||
321 | |||
322 | if (g_strrstr(priv->repo_uri, URI_MARKER_YS)) | ||
323 | priv->uri_format |= URI_HAS_YS; | ||
324 | |||
325 | if (g_strrstr(priv->repo_uri, URI_MARKER_R)) | ||
326 | priv->uri_format |= URI_HAS_R; | ||
327 | |||
328 | if (g_strrstr(priv->repo_uri, "google.com")) | ||
329 | priv->the_google = TRUE; | ||
330 | |||
331 | g_debug("URI Format: 0x%X (google: %X)", priv->uri_format, priv->the_google); | ||
332 | |||
333 | } | ||
334 | |||
335 | static gchar * | ||
336 | replace_map_uri(OsmGpsMap *map, const gchar *uri, int zoom, int x, int y) | ||
337 | { | ||
338 | OsmGpsMapPrivate *priv = map->priv; | ||
339 | char *url; | ||
340 | unsigned int i; | ||
341 | char location[22]; | ||
342 | |||
343 | i = 1; | ||
344 | url = g_strdup(uri); | ||
345 | while (i < URI_FLAG_END) | ||
346 | { | ||
347 | char *s = NULL; | ||
348 | char *old; | ||
349 | |||
350 | old = url; | ||
351 | switch(i & priv->uri_format) | ||
352 | { | ||
353 | case URI_HAS_X: | ||
354 | s = g_strdup_printf("%d", x); | ||
355 | url = replace_string(url, URI_MARKER_X, s); | ||
356 | //g_debug("FOUND " URI_MARKER_X); | ||
357 | break; | ||
358 | case URI_HAS_Y: | ||
359 | s = g_strdup_printf("%d", y); | ||
360 | url = replace_string(url, URI_MARKER_Y, s); | ||
361 | //g_debug("FOUND " URI_MARKER_Y); | ||
362 | break; | ||
363 | case URI_HAS_Z: | ||
364 | s = g_strdup_printf("%d", zoom); | ||
365 | url = replace_string(url, URI_MARKER_Z, s); | ||
366 | //g_debug("FOUND " URI_MARKER_Z); | ||
367 | break; | ||
368 | case URI_HAS_S: | ||
369 | s = g_strdup_printf("%d", priv->max_zoom-zoom); | ||
370 | url = replace_string(url, URI_MARKER_S, s); | ||
371 | //g_debug("FOUND " URI_MARKER_S); | ||
372 | break; | ||
373 | case URI_HAS_Q: | ||
374 | map_convert_coords_to_quadtree_string(map,x,y,zoom,location,'t',"qrts"); | ||
375 | s = g_strdup_printf("%s", location); | ||
376 | url = replace_string(url, URI_MARKER_Q, s); | ||
377 | //g_debug("FOUND " URI_MARKER_Q); | ||
378 | break; | ||
379 | case URI_HAS_Q0: | ||
380 | map_convert_coords_to_quadtree_string(map,x,y,zoom,location,'\0', "0123"); | ||
381 | s = g_strdup_printf("%s", location); | ||
382 | url = replace_string(url, URI_MARKER_Q0, s); | ||
383 | //g_debug("FOUND " URI_MARKER_Q0); | ||
384 | break; | ||
385 | case URI_HAS_YS: | ||
386 | // s = g_strdup_printf("%d", y); | ||
387 | // url = replace_string(url, URI_MARKER_YS, s); | ||
388 | g_warning("FOUND " URI_MARKER_YS " NOT IMPLEMENTED"); | ||
389 | // retval = g_strdup_printf(repo->url, | ||
390 | // tilex, | ||
391 | // (1 << (MAX_ZOOM - zoom)) - tiley - 1, | ||
392 | // zoom - (MAX_ZOOM - 17)); | ||
393 | break; | ||
394 | case URI_HAS_R: | ||
395 | s = g_strdup_printf("%d", g_random_int_range(0,4)); | ||
396 | url = replace_string(url, URI_MARKER_R, s); | ||
397 | //g_debug("FOUND " URI_MARKER_R); | ||
398 | break; | ||
399 | default: | ||
400 | s = NULL; | ||
401 | break; | ||
402 | } | ||
403 | |||
404 | if (s) { | ||
405 | g_free(s); | ||
406 | g_free(old); | ||
407 | } | ||
408 | |||
409 | i = (i << 1); | ||
410 | |||
411 | } | ||
412 | |||
413 | return url; | ||
414 | } | ||
415 | |||
416 | static void | ||
417 | my_log_handler (const gchar * log_domain, GLogLevelFlags log_level, const gchar * message, gpointer user_data) | ||
418 | { | ||
419 | if (!(log_level & G_LOG_LEVEL_DEBUG) || ENABLE_DEBUG) | ||
420 | g_log_default_handler (log_domain, log_level, message, user_data); | ||
421 | } | ||
422 | |||
423 | /* clears the trip list and all resources */ | ||
424 | static void | ||
425 | osm_gps_map_free_trip (OsmGpsMap *map) | ||
426 | { | ||
427 | OsmGpsMapPrivate *priv = map->priv; | ||
428 | if (priv->trip_history) { | ||
429 | g_slist_foreach(priv->trip_history, (GFunc) g_free, NULL); | ||
430 | g_slist_free(priv->trip_history); | ||
431 | priv->trip_history = NULL; | ||
432 | } | ||
433 | } | ||
434 | |||
435 | /* clears the tracks and all resources */ | ||
436 | static void | ||
437 | osm_gps_map_free_tracks (OsmGpsMap *map) | ||
438 | { | ||
439 | OsmGpsMapPrivate *priv = map->priv; | ||
440 | if (priv->tracks) | ||
441 | { | ||
442 | GSList* tmp = priv->tracks; | ||
443 | while (tmp != NULL) | ||
444 | { | ||
445 | g_slist_foreach(tmp->data, (GFunc) g_free, NULL); | ||
446 | g_slist_free(tmp->data); | ||
447 | tmp = g_slist_next(tmp); | ||
448 | } | ||
449 | g_slist_free(priv->tracks); | ||
450 | priv->tracks = NULL; | ||
451 | } | ||
452 | } | ||
453 | |||
454 | /* free the poi image lists */ | ||
455 | static void | ||
456 | osm_gps_map_free_images (OsmGpsMap *map) | ||
457 | { | ||
458 | OsmGpsMapPrivate *priv = map->priv; | ||
459 | if (priv->images) { | ||
460 | GSList *list; | ||
461 | for(list = priv->images; list != NULL; list = list->next) | ||
462 | { | ||
463 | image_t *im = list->data; | ||
464 | g_object_unref(im->image); | ||
465 | g_free(im); | ||
466 | } | ||
467 | g_slist_free(priv->images); | ||
468 | priv->images = NULL; | ||
469 | } | ||
470 | } | ||
471 | |||
472 | static void | ||
473 | osm_gps_map_print_images (OsmGpsMap *map) | ||
474 | { | ||
475 | GSList *list; | ||
476 | int x,y,pixel_x,pixel_y; | ||
477 | int min_x = 0,min_y = 0,max_x = 0,max_y = 0; | ||
478 | int map_x0, map_y0; | ||
479 | OsmGpsMapPrivate *priv = map->priv; | ||
480 | |||
481 | map_x0 = priv->map_x - EXTRA_BORDER; | ||
482 | map_y0 = priv->map_y - EXTRA_BORDER; | ||
483 | for(list = priv->images; list != NULL; list = list->next) | ||
484 | { | ||
485 | image_t *im = list->data; | ||
486 | |||
487 | // pixel_x,y, offsets | ||
488 | pixel_x = lon2pixel(priv->map_zoom, im->pt.rlon); | ||
489 | pixel_y = lat2pixel(priv->map_zoom, im->pt.rlat); | ||
490 | |||
491 | g_debug("Image %dx%d @: %f,%f (%d,%d)", | ||
492 | im->w, im->h, | ||
493 | im->pt.rlat, im->pt.rlon, | ||
494 | pixel_x, pixel_y); | ||
495 | |||
496 | x = pixel_x - map_x0; | ||
497 | y = pixel_y - map_y0; | ||
498 | |||
499 | gdk_draw_pixbuf ( | ||
500 | priv->pixmap, | ||
501 | priv->gc_map, | ||
502 | im->image, | ||
503 | 0,0, | ||
504 | x-(im->w/2),y-(im->h/2), | ||
505 | im->w,im->h, | ||
506 | GDK_RGB_DITHER_NONE, 0, 0); | ||
507 | |||
508 | max_x = MAX(x+im->w,max_x); | ||
509 | min_x = MIN(x-im->w,min_x); | ||
510 | max_y = MAX(y+im->h,max_y); | ||
511 | min_y = MIN(y-im->h,min_y); | ||
512 | } | ||
513 | |||
514 | gtk_widget_queue_draw_area ( | ||
515 | GTK_WIDGET(map), | ||
516 | min_x + EXTRA_BORDER, min_y + EXTRA_BORDER, | ||
517 | max_x + EXTRA_BORDER, max_y + EXTRA_BORDER); | ||
518 | |||
519 | } | ||
520 | |||
521 | static void | ||
522 | osm_gps_map_draw_gps_point (OsmGpsMap *map) | ||
523 | { | ||
524 | OsmGpsMapPrivate *priv = map->priv; | ||
525 | |||
526 | //incase we get called before we have got a gps point | ||
527 | if (priv->gps_valid) { | ||
528 | int map_x0, map_y0; | ||
529 | int x, y; | ||
530 | int r = priv->ui_gps_point_inner_radius; | ||
531 | int r2 = priv->ui_gps_point_outer_radius; | ||
532 | int mr = MAX(r,r2); | ||
533 | |||
534 | map_x0 = priv->map_x - EXTRA_BORDER; | ||
535 | map_y0 = priv->map_y - EXTRA_BORDER; | ||
536 | x = lon2pixel(priv->map_zoom, priv->gps->rlon) - map_x0; | ||
537 | y = lat2pixel(priv->map_zoom, priv->gps->rlat) - map_y0; | ||
538 | #ifdef USE_CAIRO | ||
539 | cairo_t *cr; | ||
540 | cairo_pattern_t *pat; | ||
541 | #else | ||
542 | int lw = priv->ui_gps_track_width; | ||
543 | GdkColor color; | ||
544 | GdkGC *marker; | ||
545 | #endif | ||
546 | |||
547 | #ifdef USE_CAIRO | ||
548 | cr = gdk_cairo_create(priv->pixmap); | ||
549 | |||
550 | // draw transparent area | ||
551 | if (r2 > 0) { | ||
552 | cairo_set_line_width (cr, 1.5); | ||
553 | cairo_set_source_rgba (cr, 0.75, 0.75, 0.75, 0.4); | ||
554 | cairo_arc (cr, x, y, r2, 0, 2 * M_PI); | ||
555 | cairo_fill (cr); | ||
556 | // draw transparent area border | ||
557 | cairo_set_source_rgba (cr, 0.55, 0.55, 0.55, 0.4); | ||
558 | cairo_arc (cr, x, y, r2, 0, 2 * M_PI); | ||
559 | cairo_stroke(cr); | ||
560 | } | ||
561 | |||
562 | // draw ball gradient | ||
563 | if (r > 0) { | ||
564 | pat = cairo_pattern_create_radial (x-(r/5), y-(r/5), (r/5), x, y, r); | ||
565 | cairo_pattern_add_color_stop_rgba (pat, 0, 1, 1, 1, 1.0); | ||
566 | cairo_pattern_add_color_stop_rgba (pat, 1, 0, 0, 1, 1.0); | ||
567 | cairo_set_source (cr, pat); | ||
568 | cairo_arc (cr, x, y, r, 0, 2 * M_PI); | ||
569 | cairo_fill (cr); | ||
570 | cairo_pattern_destroy (pat); | ||
571 | // draw ball border | ||
572 | cairo_set_line_width (cr, 1.0); | ||
573 | cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 1.0); | ||
574 | cairo_arc (cr, x, y, r, 0, 2 * M_PI); | ||
575 | cairo_stroke(cr); | ||
576 | } | ||
577 | |||
578 | cairo_destroy(cr); | ||
579 | gtk_widget_queue_draw_area (GTK_WIDGET(map), | ||
580 | x-mr, | ||
581 | y-mr, | ||
582 | mr*2, | ||
583 | mr*2); | ||
584 | #else | ||
585 | marker = gdk_gc_new(priv->pixmap); | ||
586 | color.red = 5000; | ||
587 | color.green = 5000; | ||
588 | color.blue = 55000; | ||
589 | gdk_gc_set_rgb_fg_color(marker, &color); | ||
590 | gdk_gc_set_line_attributes(marker, lw, GDK_LINE_SOLID, GDK_CAP_ROUND, GDK_JOIN_ROUND); | ||
591 | |||
592 | if (r2 > 0) { | ||
593 | gdk_draw_arc (priv->pixmap, | ||
594 | marker, | ||
595 | FALSE, //filled | ||
596 | x-r2, y-r2, // x,y | ||
597 | r2*2,r2*2, // width, height | ||
598 | 0, 360*64); // start-end angle 64th, from 3h, anti clockwise | ||
599 | } | ||
600 | if (r > 0) { | ||
601 | gdk_draw_arc (priv->pixmap, | ||
602 | marker, | ||
603 | TRUE, //filled | ||
604 | x-r, y-r, // x,y | ||
605 | r*2,r*2, // width, height | ||
606 | 0, 360*64); // start-end angle 64th, from 3h, anti clockwise | ||
607 | } | ||
608 | |||
609 | g_object_unref(marker); | ||
610 | gtk_widget_queue_draw_area (GTK_WIDGET(map), | ||
611 | x-(mr+lw), | ||
612 | y-(mr+lw), | ||
613 | (mr*2)+lw+lw, | ||
614 | (mr*2)+lw+lw); | ||
615 | #endif | ||
616 | } | ||
617 | } | ||
618 | |||
619 | static void | ||
620 | osm_gps_map_blit_tile(OsmGpsMap *map, GdkPixbuf *pixbuf, int offset_x, int offset_y) | ||
621 | { | ||
622 | OsmGpsMapPrivate *priv = map->priv; | ||
623 | |||
624 | harbaum | 212 | g_debug("Queing redraw @ %d,%d (w:%d h:%d)", offset_x,offset_y, |
625 | TILESIZE,TILESIZE); | ||
626 | harbaum | 200 | |
627 | /* draw pixbuf onto pixmap */ | ||
628 | gdk_draw_pixbuf (priv->pixmap, | ||
629 | priv->gc_map, | ||
630 | pixbuf, | ||
631 | 0,0, | ||
632 | offset_x,offset_y, | ||
633 | TILESIZE,TILESIZE, | ||
634 | GDK_RGB_DITHER_NONE, 0, 0); | ||
635 | } | ||
636 | |||
637 | harbaum | 214 | /* libsoup-2.2 and libsoup-2.4 use different ways to store the body data */ |
638 | #ifdef LIBSOUP22 | ||
639 | harbaum | 212 | #define soup_message_headers_append(a,b,c) soup_message_add_header(a,b,c) |
640 | #define MSG_RESPONSE_BODY(a) ((a)->response.body) | ||
641 | #define MSG_RESPONSE_LEN(a) ((a)->response.length) | ||
642 | #else | ||
643 | #define MSG_RESPONSE_BODY(a) ((a)->response_body->data) | ||
644 | #define MSG_RESPONSE_LEN(a) ((a)->response_body->length) | ||
645 | #endif | ||
646 | |||
647 | harbaum | 214 | #ifdef LIBSOUP22 |
648 | harbaum | 200 | static void |
649 | harbaum | 212 | osm_gps_map_tile_download_complete (SoupMessage *msg, gpointer user_data) |
650 | #else | ||
651 | static void | ||
652 | harbaum | 200 | osm_gps_map_tile_download_complete (SoupSession *session, SoupMessage *msg, gpointer user_data) |
653 | harbaum | 212 | #endif |
654 | harbaum | 200 | { |
655 | #ifndef NO_DISK_CACHE | ||
656 | int fd; | ||
657 | #endif | ||
658 | tile_download_t *dl = (tile_download_t *)user_data; | ||
659 | OsmGpsMap *map = OSM_GPS_MAP(dl->map); | ||
660 | OsmGpsMapPrivate *priv = map->priv; | ||
661 | |||
662 | if (SOUP_STATUS_IS_SUCCESSFUL (msg->status_code)) | ||
663 | { | ||
664 | #ifndef NO_DISK_CACHE | ||
665 | if (g_mkdir_with_parents(dl->folder,0700) == 0) | ||
666 | { | ||
667 | fd = open(dl->filename, O_WRONLY | O_CREAT | O_TRUNC, 0644); | ||
668 | if (fd != -1) | ||
669 | { | ||
670 | harbaum | 212 | write (fd, MSG_RESPONSE_BODY(msg), MSG_RESPONSE_LEN(msg)); |
671 | |||
672 | g_debug("Wrote %lld bytes to %s", MSG_RESPONSE_LEN(msg), dl->filename); | ||
673 | harbaum | 200 | close (fd); |
674 | #endif | ||
675 | if (dl->redraw) | ||
676 | { | ||
677 | #ifndef NO_DISK_CACHE | ||
678 | GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file (dl->filename, NULL); | ||
679 | #else | ||
680 | GdkPixbufLoader *loader = gdk_pixbuf_loader_new_with_type("png", NULL); | ||
681 | harbaum | 212 | if(!gdk_pixbuf_loader_write(loader, (unsigned char*)MSG_RESPONSE_BODY(msg), |
682 | MSG_RESPONSE_LEN(msg), NULL)) | ||
683 | harbaum | 200 | g_warning("Error: Decoding of image failed"); |
684 | |||
685 | gdk_pixbuf_loader_close(loader, NULL); | ||
686 | |||
687 | GdkPixbuf *pixbuf = gdk_pixbuf_loader_get_pixbuf(loader); | ||
688 | |||
689 | /* give up loader but keep the pixbuf */ | ||
690 | g_object_ref(pixbuf); | ||
691 | g_object_unref(loader); | ||
692 | #endif | ||
693 | /* Store the tile into the cache */ | ||
694 | if (G_LIKELY (pixbuf)) | ||
695 | { | ||
696 | OsmCachedTile *tile = g_slice_new (OsmCachedTile); | ||
697 | tile->pixbuf = pixbuf; | ||
698 | tile->redraw_cycle = priv->redraw_cycle; | ||
699 | /* if the tile is already in the cache (it could be one | ||
700 | * rendered from another zoom level), it will be | ||
701 | * overwritten */ | ||
702 | g_hash_table_insert (priv->tile_cache, dl->filename, tile); | ||
703 | /* NULL-ify dl->filename so that it won't be freed, as | ||
704 | * we are using it as a key in the hash table */ | ||
705 | dl->filename = NULL; | ||
706 | } | ||
707 | |||
708 | osm_gps_map_map_redraw_idle (map); | ||
709 | } | ||
710 | #ifndef NO_DISK_CACHE | ||
711 | } | ||
712 | } | ||
713 | else | ||
714 | { | ||
715 | g_warning("Error creating tile download directory: %s", dl->folder); | ||
716 | } | ||
717 | #endif | ||
718 | g_hash_table_remove(priv->tile_queue, dl->uri); | ||
719 | |||
720 | g_free(dl->uri); | ||
721 | g_free(dl->folder); | ||
722 | g_free(dl->filename); | ||
723 | g_free(dl); | ||
724 | } | ||
725 | else | ||
726 | { | ||
727 | g_warning("Error downloading tile: %d - %s", msg->status_code, msg->reason_phrase); | ||
728 | if (msg->status_code == SOUP_STATUS_NOT_FOUND) | ||
729 | { | ||
730 | g_hash_table_insert(priv->missing_tiles, dl->uri, NULL); | ||
731 | g_hash_table_remove(priv->tile_queue, dl->uri); | ||
732 | } | ||
733 | else if (msg->status_code == SOUP_STATUS_CANCELLED) | ||
734 | { | ||
735 | ;//application exiting | ||
736 | } | ||
737 | else | ||
738 | { | ||
739 | harbaum | 214 | #ifdef LIBSOUP22 |
740 | harbaum | 212 | soup_session_requeue_message(dl->session, msg); |
741 | #else | ||
742 | harbaum | 200 | soup_session_requeue_message(session, msg); |
743 | harbaum | 212 | #endif |
744 | harbaum | 200 | return; |
745 | } | ||
746 | } | ||
747 | |||
748 | |||
749 | } | ||
750 | |||
751 | static void | ||
752 | osm_gps_map_download_tile (OsmGpsMap *map, int zoom, int x, int y, gboolean redraw) | ||
753 | { | ||
754 | SoupMessage *msg; | ||
755 | OsmGpsMapPrivate *priv = map->priv; | ||
756 | tile_download_t *dl = g_new0(tile_download_t,1); | ||
757 | |||
758 | //calculate the uri to download | ||
759 | dl->uri = replace_map_uri(map, priv->repo_uri, zoom, x, y); | ||
760 | |||
761 | harbaum | 214 | #ifdef LIBSOUP22 |
762 | harbaum | 212 | dl->session = priv->soup_session; |
763 | #endif | ||
764 | |||
765 | harbaum | 200 | //check the tile has not already been queued for download, |
766 | //or has been attempted, and its missing | ||
767 | if (g_hash_table_lookup_extended(priv->tile_queue, dl->uri, NULL, NULL) || | ||
768 | g_hash_table_lookup_extended(priv->missing_tiles, dl->uri, NULL, NULL) ) | ||
769 | { | ||
770 | g_debug("Tile already downloading (or missing)"); | ||
771 | g_free(dl->uri); | ||
772 | g_free(dl); | ||
773 | } else { | ||
774 | dl->folder = g_strdup_printf("%s/%d/%d/",priv->cache_dir, zoom, x); | ||
775 | dl->filename = g_strdup_printf("%s/%d/%d/%d.png",priv->cache_dir, zoom, x, y); | ||
776 | dl->map = map; | ||
777 | dl->redraw = redraw; | ||
778 | |||
779 | g_debug("Download tile: %d,%d z:%d\n\t%s --> %s", x, y, zoom, dl->uri, dl->filename); | ||
780 | |||
781 | msg = soup_message_new (SOUP_METHOD_GET, dl->uri); | ||
782 | if (msg) { | ||
783 | if (priv->the_google) { | ||
784 | //Set maps.google.com as the referrer | ||
785 | g_debug("Setting Google Referrer"); | ||
786 | soup_message_headers_append(msg->request_headers, "Referer", "http://maps.google.com/"); | ||
787 | //For google satelite also set the appropriate cookie value | ||
788 | if (priv->uri_format & URI_HAS_Q) { | ||
789 | const char *cookie = g_getenv("GOOGLE_COOKIE"); | ||
790 | if (cookie) { | ||
791 | g_debug("Adding Google Cookie"); | ||
792 | soup_message_headers_append(msg->request_headers, "Cookie", cookie); | ||
793 | harbaum | 212 | |
794 | harbaum | 200 | } |
795 | } | ||
796 | } | ||
797 | |||
798 | g_hash_table_insert (priv->tile_queue, dl->uri, msg); | ||
799 | soup_session_queue_message (priv->soup_session, msg, osm_gps_map_tile_download_complete, dl); | ||
800 | } else { | ||
801 | g_warning("Could not create soup message"); | ||
802 | g_free(dl->uri); | ||
803 | g_free(dl->folder); | ||
804 | g_free(dl->filename); | ||
805 | g_free(dl); | ||
806 | } | ||
807 | } | ||
808 | } | ||
809 | |||
810 | static GdkPixbuf * | ||
811 | osm_gps_map_load_cached_tile (OsmGpsMap *map, int zoom, int x, int y) | ||
812 | { | ||
813 | OsmGpsMapPrivate *priv = map->priv; | ||
814 | gchar *filename; | ||
815 | GdkPixbuf *pixbuf; | ||
816 | OsmCachedTile *tile; | ||
817 | |||
818 | filename = g_strdup_printf("%s/%u/%u/%u.png", | ||
819 | priv->cache_dir, | ||
820 | zoom, x, y); | ||
821 | |||
822 | tile = g_hash_table_lookup (priv->tile_cache, filename); | ||
823 | if (tile) | ||
824 | { | ||
825 | g_free (filename); | ||
826 | } | ||
827 | #ifdef NO_DISK_CACHE | ||
828 | else | ||
829 | { | ||
830 | pixbuf = gdk_pixbuf_new_from_file (filename, NULL); | ||
831 | if (pixbuf) | ||
832 | { | ||
833 | tile = g_slice_new (OsmCachedTile); | ||
834 | tile->pixbuf = pixbuf; | ||
835 | g_hash_table_insert (priv->tile_cache, filename, tile); | ||
836 | } | ||
837 | } | ||
838 | #endif | ||
839 | |||
840 | /* set/update the redraw_cycle timestamp on the tile */ | ||
841 | if (tile) | ||
842 | { | ||
843 | tile->redraw_cycle = priv->redraw_cycle; | ||
844 | pixbuf = g_object_ref (tile->pixbuf); | ||
845 | } else | ||
846 | pixbuf = NULL; | ||
847 | |||
848 | return pixbuf; | ||
849 | } | ||
850 | |||
851 | static GdkPixbuf * | ||
852 | osm_gps_map_find_bigger_tile (OsmGpsMap *map, int zoom, int x, int y, | ||
853 | int *zoom_found) | ||
854 | { | ||
855 | GdkPixbuf *pixbuf; | ||
856 | int next_zoom, next_x, next_y; | ||
857 | |||
858 | if (zoom == 0) return NULL; | ||
859 | next_zoom = zoom - 1; | ||
860 | next_x = x / 2; | ||
861 | next_y = y / 2; | ||
862 | pixbuf = osm_gps_map_load_cached_tile (map, next_zoom, next_x, next_y); | ||
863 | if (pixbuf) | ||
864 | *zoom_found = next_zoom; | ||
865 | else | ||
866 | pixbuf = osm_gps_map_find_bigger_tile (map, next_zoom, next_x, next_y, | ||
867 | zoom_found); | ||
868 | return pixbuf; | ||
869 | } | ||
870 | |||
871 | static GdkPixbuf * | ||
872 | osm_gps_map_render_missing_tile_upscaled (OsmGpsMap *map, int zoom, | ||
873 | int x, int y) | ||
874 | { | ||
875 | GdkPixbuf *pixbuf, *big, *area; | ||
876 | int zoom_big, zoom_diff, area_size, area_x, area_y; | ||
877 | int modulo; | ||
878 | |||
879 | big = osm_gps_map_find_bigger_tile (map, zoom, x, y, &zoom_big); | ||
880 | if (!big) return NULL; | ||
881 | |||
882 | g_debug ("Found bigger tile (zoom = %d, wanted = %d)", zoom_big, zoom); | ||
883 | |||
884 | /* get a Pixbuf for the area to magnify */ | ||
885 | zoom_diff = zoom - zoom_big; | ||
886 | area_size = TILESIZE >> zoom_diff; | ||
887 | modulo = 1 << zoom_diff; | ||
888 | area_x = (x % modulo) * area_size; | ||
889 | area_y = (y % modulo) * area_size; | ||
890 | area = gdk_pixbuf_new_subpixbuf (big, area_x, area_y, | ||
891 | area_size, area_size); | ||
892 | g_object_unref (big); | ||
893 | pixbuf = gdk_pixbuf_scale_simple (area, TILESIZE, TILESIZE, | ||
894 | GDK_INTERP_NEAREST); | ||
895 | g_object_unref (area); | ||
896 | return pixbuf; | ||
897 | } | ||
898 | |||
899 | static GdkPixbuf * | ||
900 | osm_gps_map_render_missing_tile (OsmGpsMap *map, int zoom, int x, int y) | ||
901 | { | ||
902 | /* maybe TODO: render from downscaled tiles, if the following fails */ | ||
903 | return osm_gps_map_render_missing_tile_upscaled (map, zoom, x, y); | ||
904 | } | ||
905 | |||
906 | static void | ||
907 | osm_gps_map_load_tile (OsmGpsMap *map, int zoom, int x, int y, int offset_x, int offset_y) | ||
908 | { | ||
909 | OsmGpsMapPrivate *priv = map->priv; | ||
910 | gchar *filename; | ||
911 | GdkPixbuf *pixbuf; | ||
912 | |||
913 | g_debug("Load tile %d,%d (%d,%d) z:%d", x, y, offset_x, offset_y, zoom); | ||
914 | |||
915 | filename = g_strdup_printf("%s/%u/%u/%u.png", | ||
916 | priv->cache_dir, | ||
917 | zoom, x, y); | ||
918 | |||
919 | /* try to get file from internal cache */ | ||
920 | pixbuf = osm_gps_map_load_cached_tile(map, zoom, x, y); | ||
921 | |||
922 | #ifdef NO_DISK_CACHE | ||
923 | if(!pixbuf) | ||
924 | pixbuf = gdk_pixbuf_new_from_file (filename, NULL); | ||
925 | #endif | ||
926 | |||
927 | if(pixbuf) | ||
928 | { | ||
929 | g_debug("Found tile %s", filename); | ||
930 | osm_gps_map_blit_tile(map, pixbuf, offset_x,offset_y); | ||
931 | g_object_unref (pixbuf); | ||
932 | } | ||
933 | else | ||
934 | { | ||
935 | if (priv->map_auto_download) | ||
936 | osm_gps_map_download_tile(map, zoom, x, y, TRUE); | ||
937 | |||
938 | /* try to render the tile by scaling cached tiles from other zoom | ||
939 | * levels */ | ||
940 | pixbuf = osm_gps_map_render_missing_tile (map, zoom, x, y); | ||
941 | if (pixbuf) | ||
942 | { | ||
943 | gdk_draw_pixbuf (priv->pixmap, | ||
944 | priv->gc_map, | ||
945 | pixbuf, | ||
946 | 0,0, | ||
947 | offset_x,offset_y, | ||
948 | TILESIZE,TILESIZE, | ||
949 | GDK_RGB_DITHER_NONE, 0, 0); | ||
950 | g_object_unref (pixbuf); | ||
951 | } | ||
952 | else | ||
953 | { | ||
954 | //prevent some artifacts when drawing not yet loaded areas. | ||
955 | gdk_draw_rectangle (priv->pixmap, | ||
956 | GTK_WIDGET(map)->style->white_gc, | ||
957 | TRUE, offset_x, offset_y, TILESIZE, TILESIZE); | ||
958 | } | ||
959 | } | ||
960 | g_free(filename); | ||
961 | } | ||
962 | |||
963 | static void | ||
964 | osm_gps_map_fill_tiles_pixel (OsmGpsMap *map) | ||
965 | { | ||
966 | OsmGpsMapPrivate *priv = map->priv; | ||
967 | int i,j, width, height, tile_x0, tile_y0, tiles_nx, tiles_ny; | ||
968 | int offset_xn = 0; | ||
969 | int offset_yn = 0; | ||
970 | int offset_x; | ||
971 | int offset_y; | ||
972 | |||
973 | g_debug("Fill tiles: %d,%d z:%d", priv->map_x, priv->map_y, priv->map_zoom); | ||
974 | |||
975 | offset_x = - priv->map_x % TILESIZE; | ||
976 | offset_y = - priv->map_y % TILESIZE; | ||
977 | if (offset_x > 0) offset_x -= TILESIZE; | ||
978 | if (offset_y > 0) offset_y -= TILESIZE; | ||
979 | |||
980 | offset_xn = offset_x + EXTRA_BORDER; | ||
981 | offset_yn = offset_y + EXTRA_BORDER; | ||
982 | |||
983 | width = GTK_WIDGET(map)->allocation.width; | ||
984 | height = GTK_WIDGET(map)->allocation.height; | ||
985 | |||
986 | tiles_nx = (width - offset_x) / TILESIZE + 1; | ||
987 | tiles_ny = (height - offset_y) / TILESIZE + 1; | ||
988 | |||
989 | tile_x0 = floor((float)priv->map_x / (float)TILESIZE); | ||
990 | tile_y0 = floor((float)priv->map_y / (float)TILESIZE); | ||
991 | |||
992 | //TODO: implement wrap around | ||
993 | for (i=tile_x0; i<(tile_x0+tiles_nx);i++) | ||
994 | { | ||
995 | for (j=tile_y0; j<(tile_y0+tiles_ny); j++) | ||
996 | { | ||
997 | if( j<0 || i<0 || i>=exp(priv->map_zoom * M_LN2) || j>=exp(priv->map_zoom * M_LN2)) | ||
998 | { | ||
999 | gdk_draw_rectangle (priv->pixmap, | ||
1000 | GTK_WIDGET(map)->style->white_gc, | ||
1001 | TRUE, | ||
1002 | offset_xn, offset_yn, | ||
1003 | TILESIZE,TILESIZE); | ||
1004 | } | ||
1005 | else | ||
1006 | { | ||
1007 | osm_gps_map_load_tile(map, | ||
1008 | priv->map_zoom, | ||
1009 | i,j, | ||
1010 | offset_xn,offset_yn); | ||
1011 | } | ||
1012 | offset_yn += TILESIZE; | ||
1013 | } | ||
1014 | offset_xn += TILESIZE; | ||
1015 | offset_yn = offset_y + EXTRA_BORDER; | ||
1016 | } | ||
1017 | } | ||
1018 | |||
1019 | static void | ||
1020 | osm_gps_map_print_track (OsmGpsMap *map, GSList *trackpoint_list) | ||
1021 | { | ||
1022 | OsmGpsMapPrivate *priv = map->priv; | ||
1023 | |||
1024 | GSList *list; | ||
1025 | int x,y; | ||
1026 | int min_x = 0,min_y = 0,max_x = 0,max_y = 0; | ||
1027 | int lw = priv->ui_gps_track_width; | ||
1028 | int map_x0, map_y0; | ||
1029 | #ifdef USE_CAIRO | ||
1030 | cairo_t *cr; | ||
1031 | #else | ||
1032 | int last_x = 0, last_y = 0; | ||
1033 | GdkColor color; | ||
1034 | GdkGC *gc; | ||
1035 | #endif | ||
1036 | |||
1037 | #ifdef USE_CAIRO | ||
1038 | cr = gdk_cairo_create(priv->pixmap); | ||
1039 | cairo_set_line_width (cr, lw); | ||
1040 | cairo_set_source_rgba (cr, 60000.0/65535.0, 0.0, 0.0, 0.6); | ||
1041 | cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); | ||
1042 | cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); | ||
1043 | #else | ||
1044 | gc = gdk_gc_new(priv->pixmap); | ||
1045 | color.green = 0; | ||
1046 | color.blue = 0; | ||
1047 | color.red = 60000; | ||
1048 | gdk_gc_set_rgb_fg_color(gc, &color); | ||
1049 | gdk_gc_set_line_attributes(gc, lw, GDK_LINE_SOLID, GDK_CAP_ROUND, GDK_JOIN_ROUND); | ||
1050 | #endif | ||
1051 | |||
1052 | map_x0 = priv->map_x - EXTRA_BORDER; | ||
1053 | map_y0 = priv->map_y - EXTRA_BORDER; | ||
1054 | harbaum | 215 | |
1055 | harbaum | 200 | for(list = trackpoint_list; list != NULL; list = list->next) |
1056 | { | ||
1057 | coord_t *tp = list->data; | ||
1058 | |||
1059 | x = lon2pixel(priv->map_zoom, tp->rlon) - map_x0; | ||
1060 | y = lat2pixel(priv->map_zoom, tp->rlat) - map_y0; | ||
1061 | |||
1062 | // first time through loop | ||
1063 | if (list == trackpoint_list) { | ||
1064 | #ifdef USE_CAIRO | ||
1065 | cairo_move_to(cr, x, y); | ||
1066 | #else | ||
1067 | last_x = x; | ||
1068 | last_y = y; | ||
1069 | #endif | ||
1070 | } | ||
1071 | |||
1072 | #ifdef USE_CAIRO | ||
1073 | cairo_line_to(cr, x, y); | ||
1074 | #else | ||
1075 | gdk_draw_line (priv->pixmap, gc, x, y, last_x, last_y); | ||
1076 | last_x = x; | ||
1077 | last_y = y; | ||
1078 | #endif | ||
1079 | |||
1080 | max_x = MAX(x,max_x); | ||
1081 | min_x = MIN(x,min_x); | ||
1082 | max_y = MAX(y,max_y); | ||
1083 | min_y = MIN(y,min_y); | ||
1084 | } | ||
1085 | |||
1086 | gtk_widget_queue_draw_area ( | ||
1087 | GTK_WIDGET(map), | ||
1088 | min_x - lw, | ||
1089 | min_y - lw, | ||
1090 | max_x + (lw * 2), | ||
1091 | max_y + (lw * 2)); | ||
1092 | |||
1093 | #ifdef USE_CAIRO | ||
1094 | cairo_stroke(cr); | ||
1095 | cairo_destroy(cr); | ||
1096 | #else | ||
1097 | g_object_unref(gc); | ||
1098 | #endif | ||
1099 | } | ||
1100 | |||
1101 | /* Prints the gps trip history, and any other tracks */ | ||
1102 | static void | ||
1103 | osm_gps_map_print_tracks (OsmGpsMap *map) | ||
1104 | { | ||
1105 | OsmGpsMapPrivate *priv = map->priv; | ||
1106 | |||
1107 | if (priv->show_trip_history) | ||
1108 | osm_gps_map_print_track (map, priv->trip_history); | ||
1109 | if (priv->tracks) | ||
1110 | { | ||
1111 | g_debug("TRACK"); | ||
1112 | GSList* tmp = priv->tracks; | ||
1113 | while (tmp != NULL) | ||
1114 | { | ||
1115 | osm_gps_map_print_track (map, tmp->data); | ||
1116 | tmp = g_slist_next(tmp); | ||
1117 | } | ||
1118 | } | ||
1119 | } | ||
1120 | |||
1121 | harbaum | 213 | static gboolean |
1122 | osm_gps_map_purge_cache_check(gpointer key, gpointer value, gpointer user) | ||
1123 | { | ||
1124 | return(((OsmCachedTile*)value)->redraw_cycle != ((OsmGpsMapPrivate*)user)->redraw_cycle); | ||
1125 | } | ||
1126 | |||
1127 | harbaum | 200 | static void |
1128 | osm_gps_map_purge_cache (OsmGpsMap *map) | ||
1129 | { | ||
1130 | OsmGpsMapPrivate *priv = map->priv; | ||
1131 | |||
1132 | if (g_hash_table_size (priv->tile_cache) < priv->max_tile_cache_size) | ||
1133 | return; | ||
1134 | |||
1135 | /* run through the cache, and remove the tiles which have not been used | ||
1136 | * during the last redraw operation */ | ||
1137 | harbaum | 213 | g_hash_table_foreach_remove(priv->tile_cache, osm_gps_map_purge_cache_check, priv); |
1138 | harbaum | 200 | } |
1139 | |||
1140 | static gboolean | ||
1141 | osm_gps_map_map_redraw (OsmGpsMap *map) | ||
1142 | { | ||
1143 | OsmGpsMapPrivate *priv = map->priv; | ||
1144 | |||
1145 | priv->idle_map_redraw = 0; | ||
1146 | |||
1147 | /* the motion_notify handler uses priv->pixmap to redraw the area; if we | ||
1148 | * change it while we are dragging, we will end up showing it in the wrong | ||
1149 | * place. This could be fixed by carefully recompute the coordinates, but | ||
1150 | * for now it's easier just to disable redrawing the map while dragging */ | ||
1151 | if (priv->dragging) | ||
1152 | return FALSE; | ||
1153 | |||
1154 | priv->redraw_cycle++; | ||
1155 | |||
1156 | /* draw white background to initialise pixmap */ | ||
1157 | gdk_draw_rectangle ( | ||
1158 | priv->pixmap, | ||
1159 | GTK_WIDGET(map)->style->white_gc, | ||
1160 | TRUE, | ||
1161 | 0, 0, | ||
1162 | GTK_WIDGET(map)->allocation.width + EXTRA_BORDER * 2, | ||
1163 | GTK_WIDGET(map)->allocation.height + EXTRA_BORDER * 2); | ||
1164 | |||
1165 | osm_gps_map_fill_tiles_pixel(map); | ||
1166 | |||
1167 | osm_gps_map_print_tracks(map); | ||
1168 | osm_gps_map_draw_gps_point(map); | ||
1169 | osm_gps_map_print_images(map); | ||
1170 | |||
1171 | //osm_gps_map_osd_speed(map, 1.5); | ||
1172 | osm_gps_map_purge_cache(map); | ||
1173 | gtk_widget_queue_draw (GTK_WIDGET (map)); | ||
1174 | |||
1175 | return FALSE; | ||
1176 | } | ||
1177 | |||
1178 | static void | ||
1179 | osm_gps_map_map_redraw_idle (OsmGpsMap *map) | ||
1180 | { | ||
1181 | OsmGpsMapPrivate *priv = map->priv; | ||
1182 | |||
1183 | if (priv->idle_map_redraw == 0) | ||
1184 | priv->idle_map_redraw = g_idle_add ((GSourceFunc)osm_gps_map_map_redraw, map); | ||
1185 | } | ||
1186 | |||
1187 | static void | ||
1188 | osm_gps_map_init (OsmGpsMap *object) | ||
1189 | { | ||
1190 | OsmGpsMapPrivate *priv; | ||
1191 | |||
1192 | priv = G_TYPE_INSTANCE_GET_PRIVATE (object, OSM_TYPE_GPS_MAP, OsmGpsMapPrivate); | ||
1193 | object->priv = priv; | ||
1194 | |||
1195 | priv->pixmap = NULL; | ||
1196 | |||
1197 | priv->trip_history = NULL; | ||
1198 | priv->gps = g_new0(coord_t, 1); | ||
1199 | priv->gps_valid = FALSE; | ||
1200 | |||
1201 | priv->tracks = NULL; | ||
1202 | priv->images = NULL; | ||
1203 | |||
1204 | priv->drag_counter = 0; | ||
1205 | priv->drag_mouse_dx = 0; | ||
1206 | priv->drag_mouse_dy = 0; | ||
1207 | priv->drag_start_mouse_x = 0; | ||
1208 | priv->drag_start_mouse_y = 0; | ||
1209 | |||
1210 | priv->uri_format = 0; | ||
1211 | priv->the_google = FALSE; | ||
1212 | |||
1213 | harbaum | 214 | #ifndef LIBSOUP22 |
1214 | harbaum | 200 | //Change naumber of concurrent connections option? |
1215 | priv->soup_session = soup_session_async_new_with_options( | ||
1216 | SOUP_SESSION_USER_AGENT, | ||
1217 | "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.11) Gecko/20071127 Firefox/2.0.0.11", | ||
1218 | NULL); | ||
1219 | harbaum | 214 | #else |
1220 | /* libsoup-2.2 seems not to be able to set the user agent */ | ||
1221 | priv->soup_session = soup_session_async_new(); | ||
1222 | harbaum | 212 | #endif |
1223 | harbaum | 200 | |
1224 | //Hash table which maps tile d/l URIs to SoupMessage requests | ||
1225 | priv->tile_queue = g_hash_table_new (g_str_hash, g_str_equal); | ||
1226 | |||
1227 | //Some mapping providers (Google) have varying degrees of tiles at multiple | ||
1228 | //zoom levels | ||
1229 | priv->missing_tiles = g_hash_table_new (g_str_hash, g_str_equal); | ||
1230 | |||
1231 | /* memory cache for most recently used tiles */ | ||
1232 | priv->tile_cache = g_hash_table_new_full (g_str_hash, g_str_equal, | ||
1233 | g_free, (GDestroyNotify)cached_tile_free); | ||
1234 | priv->max_tile_cache_size = 20; | ||
1235 | |||
1236 | gtk_widget_add_events (GTK_WIDGET (object), | ||
1237 | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | | ||
1238 | GDK_POINTER_MOTION_MASK | | ||
1239 | GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK); | ||
1240 | GTK_WIDGET_SET_FLAGS (object, GTK_CAN_FOCUS); | ||
1241 | |||
1242 | g_log_set_handler (G_LOG_DOMAIN, G_LOG_LEVEL_MASK, my_log_handler, NULL); | ||
1243 | } | ||
1244 | |||
1245 | harbaum | 213 | #ifndef G_CHECKSUM_MD5 |
1246 | /* simple hash algorithm hack if md5 is not present */ | ||
1247 | static char *simple_hash(char *str) { | ||
1248 | union { | ||
1249 | char str[4]; | ||
1250 | gulong val; | ||
1251 | } hash = { .val = 0x55555555 }; | ||
1252 | |||
1253 | while(*str) { | ||
1254 | hash.str[(int)str & 3] ^= *str; | ||
1255 | str++; | ||
1256 | } | ||
1257 | return g_strdup_printf("%08lX", hash.val); | ||
1258 | } | ||
1259 | #endif | ||
1260 | |||
1261 | harbaum | 200 | static GObject * |
1262 | osm_gps_map_constructor (GType gtype, guint n_properties, GObjectConstructParam *properties) | ||
1263 | { | ||
1264 | GObject *object; | ||
1265 | OsmGpsMapPrivate *priv; | ||
1266 | |||
1267 | //Always chain up to the parent constructor | ||
1268 | object = G_OBJECT_CLASS(osm_gps_map_parent_class)->constructor(gtype, n_properties, properties); | ||
1269 | priv = OSM_GPS_MAP_PRIVATE(object); | ||
1270 | |||
1271 | if (!priv->cache_dir_is_full_path) { | ||
1272 | harbaum | 212 | #ifdef G_CHECKSUM_MD5 |
1273 | harbaum | 200 | char *md5 = g_compute_checksum_for_string (G_CHECKSUM_MD5, priv->repo_uri, -1); |
1274 | harbaum | 212 | #else |
1275 | harbaum | 213 | char *md5 = simple_hash(priv->repo_uri); |
1276 | harbaum | 212 | #endif |
1277 | harbaum | 200 | |
1278 | if (priv->cache_dir) { | ||
1279 | char *old = priv->cache_dir; | ||
1280 | //the new cachedir is the given cache dir + the md5 of the repo_uri | ||
1281 | priv->cache_dir = g_strdup_printf("%s/%s", old, md5); | ||
1282 | g_debug("Adjusting cache dir %s -> %s", old, priv->cache_dir); | ||
1283 | g_free(old); | ||
1284 | } else { | ||
1285 | //the new cachedir is the current dir + the md5 of the repo_uri | ||
1286 | priv->cache_dir = g_strdup(md5); | ||
1287 | } | ||
1288 | |||
1289 | g_free(md5); | ||
1290 | } | ||
1291 | |||
1292 | return object; | ||
1293 | } | ||
1294 | |||
1295 | static void | ||
1296 | osm_gps_map_dispose (GObject *object) | ||
1297 | { | ||
1298 | OsmGpsMap *map = OSM_GPS_MAP(object); | ||
1299 | OsmGpsMapPrivate *priv = map->priv; | ||
1300 | |||
1301 | if (priv->is_disposed) | ||
1302 | return; | ||
1303 | |||
1304 | priv->is_disposed = TRUE; | ||
1305 | |||
1306 | soup_session_abort(priv->soup_session); | ||
1307 | g_object_unref(priv->soup_session); | ||
1308 | |||
1309 | g_hash_table_destroy(priv->tile_queue); | ||
1310 | g_hash_table_destroy(priv->missing_tiles); | ||
1311 | g_hash_table_destroy(priv->tile_cache); | ||
1312 | |||
1313 | osm_gps_map_free_images(map); | ||
1314 | |||
1315 | if(priv->pixmap) | ||
1316 | g_object_unref (priv->pixmap); | ||
1317 | |||
1318 | if(priv->gc_map) | ||
1319 | g_object_unref(priv->gc_map); | ||
1320 | |||
1321 | if (priv->idle_map_redraw != 0) | ||
1322 | g_source_remove (priv->idle_map_redraw); | ||
1323 | |||
1324 | G_OBJECT_CLASS (osm_gps_map_parent_class)->dispose (object); | ||
1325 | } | ||
1326 | |||
1327 | static void | ||
1328 | osm_gps_map_finalize (GObject *object) | ||
1329 | { | ||
1330 | OsmGpsMap *map = OSM_GPS_MAP(object); | ||
1331 | OsmGpsMapPrivate *priv = map->priv; | ||
1332 | |||
1333 | g_free(priv->cache_dir); | ||
1334 | g_free(priv->repo_uri); | ||
1335 | |||
1336 | osm_gps_map_free_trip(map); | ||
1337 | osm_gps_map_free_tracks(map); | ||
1338 | |||
1339 | G_OBJECT_CLASS (osm_gps_map_parent_class)->finalize (object); | ||
1340 | } | ||
1341 | |||
1342 | static void | ||
1343 | osm_gps_map_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) | ||
1344 | { | ||
1345 | g_return_if_fail (OSM_IS_GPS_MAP (object)); | ||
1346 | OsmGpsMap *map = OSM_GPS_MAP(object); | ||
1347 | OsmGpsMapPrivate *priv = map->priv; | ||
1348 | |||
1349 | switch (prop_id) | ||
1350 | { | ||
1351 | case PROP_AUTO_CENTER: | ||
1352 | priv->map_auto_center = g_value_get_boolean (value); | ||
1353 | break; | ||
1354 | case PROP_RECORD_TRIP_HISTORY: | ||
1355 | priv->record_trip_history = g_value_get_boolean (value); | ||
1356 | break; | ||
1357 | case PROP_SHOW_TRIP_HISTORY: | ||
1358 | priv->show_trip_history = g_value_get_boolean (value); | ||
1359 | break; | ||
1360 | case PROP_AUTO_DOWNLOAD: | ||
1361 | priv->map_auto_download = g_value_get_boolean (value); | ||
1362 | break; | ||
1363 | case PROP_REPO_URI: | ||
1364 | priv->repo_uri = g_value_dup_string (value); | ||
1365 | inspect_map_uri(map); | ||
1366 | break; | ||
1367 | case PROP_PROXY_URI: | ||
1368 | if ( g_value_get_string(value) ) { | ||
1369 | |||
1370 | priv->proxy_uri = g_value_dup_string (value); | ||
1371 | g_debug("Setting proxy server: %s", priv->proxy_uri); | ||
1372 | harbaum | 214 | #ifndef LIBSOUP22 |
1373 | GValue val = {0}; | ||
1374 | harbaum | 200 | SoupURI* uri = soup_uri_new(priv->proxy_uri); |
1375 | g_value_init(&val, SOUP_TYPE_URI); | ||
1376 | g_value_take_boxed(&val, uri); | ||
1377 | |||
1378 | g_object_set_property(G_OBJECT(priv->soup_session),SOUP_SESSION_PROXY_URI,&val); | ||
1379 | harbaum | 212 | #else |
1380 | harbaum | 214 | SoupUri* uri = soup_uri_new(priv->proxy_uri); |
1381 | g_object_set(G_OBJECT(priv->soup_session), SOUP_SESSION_PROXY_URI, uri, NULL); | ||
1382 | harbaum | 212 | #endif |
1383 | harbaum | 214 | soup_uri_free(uri); |
1384 | harbaum | 200 | } else |
1385 | priv->proxy_uri = NULL; | ||
1386 | |||
1387 | break; | ||
1388 | case PROP_TILE_CACHE_DIR: | ||
1389 | priv->cache_dir = g_value_dup_string (value); | ||
1390 | break; | ||
1391 | case PROP_TILE_CACHE_DIR_IS_FULL_PATH: | ||
1392 | priv->cache_dir_is_full_path = g_value_get_boolean (value); | ||
1393 | break; | ||
1394 | case PROP_ZOOM: | ||
1395 | priv->map_zoom = g_value_get_int (value); | ||
1396 | break; | ||
1397 | case PROP_MAX_ZOOM: | ||
1398 | priv->max_zoom = g_value_get_int (value); | ||
1399 | break; | ||
1400 | case PROP_MIN_ZOOM: | ||
1401 | priv->min_zoom = g_value_get_int (value); | ||
1402 | break; | ||
1403 | case PROP_MAP_X: | ||
1404 | priv->map_x = g_value_get_int (value); | ||
1405 | priv->center_coord_set = FALSE; | ||
1406 | break; | ||
1407 | case PROP_MAP_Y: | ||
1408 | priv->map_y = g_value_get_int (value); | ||
1409 | priv->center_coord_set = FALSE; | ||
1410 | break; | ||
1411 | case PROP_GPS_TRACK_WIDTH: | ||
1412 | priv->ui_gps_track_width = g_value_get_int (value); | ||
1413 | break; | ||
1414 | case PROP_GPS_POINT_R1: | ||
1415 | priv->ui_gps_point_inner_radius = g_value_get_int (value); | ||
1416 | break; | ||
1417 | case PROP_GPS_POINT_R2: | ||
1418 | priv->ui_gps_point_outer_radius = g_value_get_int (value); | ||
1419 | break; | ||
1420 | default: | ||
1421 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); | ||
1422 | break; | ||
1423 | } | ||
1424 | } | ||
1425 | |||
1426 | static void | ||
1427 | osm_gps_map_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) | ||
1428 | { | ||
1429 | g_return_if_fail (OSM_IS_GPS_MAP (object)); | ||
1430 | float lat,lon; | ||
1431 | OsmGpsMap *map = OSM_GPS_MAP(object); | ||
1432 | OsmGpsMapPrivate *priv = map->priv; | ||
1433 | |||
1434 | switch (prop_id) | ||
1435 | { | ||
1436 | case PROP_AUTO_CENTER: | ||
1437 | g_value_set_boolean(value, priv->map_auto_center); | ||
1438 | break; | ||
1439 | case PROP_RECORD_TRIP_HISTORY: | ||
1440 | g_value_set_boolean(value, priv->record_trip_history); | ||
1441 | break; | ||
1442 | case PROP_SHOW_TRIP_HISTORY: | ||
1443 | g_value_set_boolean(value, priv->show_trip_history); | ||
1444 | break; | ||
1445 | case PROP_AUTO_DOWNLOAD: | ||
1446 | g_value_set_boolean(value, priv->map_auto_download); | ||
1447 | break; | ||
1448 | case PROP_REPO_URI: | ||
1449 | g_value_set_string(value, priv->repo_uri); | ||
1450 | break; | ||
1451 | case PROP_PROXY_URI: | ||
1452 | g_value_set_string(value, priv->proxy_uri); | ||
1453 | break; | ||
1454 | case PROP_TILE_CACHE_DIR: | ||
1455 | g_value_set_string(value, priv->cache_dir); | ||
1456 | break; | ||
1457 | case PROP_TILE_CACHE_DIR_IS_FULL_PATH: | ||
1458 | g_value_set_boolean(value, priv->cache_dir_is_full_path); | ||
1459 | break; | ||
1460 | case PROP_ZOOM: | ||
1461 | g_value_set_int(value, priv->map_zoom); | ||
1462 | break; | ||
1463 | case PROP_MAX_ZOOM: | ||
1464 | g_value_set_int(value, priv->max_zoom); | ||
1465 | break; | ||
1466 | case PROP_MIN_ZOOM: | ||
1467 | g_value_set_int(value, priv->min_zoom); | ||
1468 | break; | ||
1469 | case PROP_LATITUDE: | ||
1470 | lat = pixel2lat(priv->map_zoom, | ||
1471 | priv->map_y + (GTK_WIDGET(map)->allocation.height / 2)); | ||
1472 | g_value_set_float(value, rad2deg(lat)); | ||
1473 | break; | ||
1474 | case PROP_LONGITUDE: | ||
1475 | lon = pixel2lon(priv->map_zoom, | ||
1476 | priv->map_x + (GTK_WIDGET(map)->allocation.width / 2)); | ||
1477 | g_value_set_float(value, rad2deg(lon)); | ||
1478 | break; | ||
1479 | case PROP_MAP_X: | ||
1480 | g_value_set_int(value, priv->map_x); | ||
1481 | break; | ||
1482 | case PROP_MAP_Y: | ||
1483 | g_value_set_int(value, priv->map_y); | ||
1484 | break; | ||
1485 | case PROP_TILES_QUEUED: | ||
1486 | g_value_set_int(value, g_hash_table_size(priv->tile_queue)); | ||
1487 | break; | ||
1488 | case PROP_GPS_TRACK_WIDTH: | ||
1489 | g_value_set_int(value, priv->ui_gps_track_width); | ||
1490 | break; | ||
1491 | case PROP_GPS_POINT_R1: | ||
1492 | g_value_set_int(value, priv->ui_gps_point_inner_radius); | ||
1493 | break; | ||
1494 | case PROP_GPS_POINT_R2: | ||
1495 | g_value_set_int(value, priv->ui_gps_point_outer_radius); | ||
1496 | break; | ||
1497 | default: | ||
1498 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); | ||
1499 | break; | ||
1500 | } | ||
1501 | } | ||
1502 | |||
1503 | static gboolean | ||
1504 | _osm_gps_map_scroll (GtkWidget *widget, GdkEventScroll *event) | ||
1505 | { | ||
1506 | OsmGpsMap *map = OSM_GPS_MAP(widget); | ||
1507 | OsmGpsMapPrivate *priv = map->priv; | ||
1508 | |||
1509 | if (event->direction == GDK_SCROLL_UP) | ||
1510 | { | ||
1511 | osm_gps_map_set_zoom(map, priv->map_zoom+1); | ||
1512 | } | ||
1513 | else | ||
1514 | { | ||
1515 | osm_gps_map_set_zoom(map, priv->map_zoom-1); | ||
1516 | } | ||
1517 | |||
1518 | return FALSE; | ||
1519 | } | ||
1520 | |||
1521 | static gboolean | ||
1522 | osm_gps_map_button_press (GtkWidget *widget, GdkEventButton *event) | ||
1523 | { | ||
1524 | OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget); | ||
1525 | |||
1526 | priv->drag_counter = 0; | ||
1527 | priv->drag_start_mouse_x = (int) event->x; | ||
1528 | priv->drag_start_mouse_y = (int) event->y; | ||
1529 | priv->drag_start_map_x = priv->map_x; | ||
1530 | priv->drag_start_map_y = priv->map_y; | ||
1531 | |||
1532 | return FALSE; | ||
1533 | } | ||
1534 | |||
1535 | static gboolean | ||
1536 | osm_gps_map_button_release (GtkWidget *widget, GdkEventButton *event) | ||
1537 | { | ||
1538 | OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget); | ||
1539 | |||
1540 | if (priv->dragging) | ||
1541 | { | ||
1542 | priv->dragging = FALSE; | ||
1543 | |||
1544 | priv->map_x = priv->drag_start_map_x; | ||
1545 | priv->map_y = priv->drag_start_map_y; | ||
1546 | |||
1547 | priv->map_x += (priv->drag_start_mouse_x - (int) event->x); | ||
1548 | priv->map_y += (priv->drag_start_mouse_y - (int) event->y); | ||
1549 | |||
1550 | priv->center_coord_set = FALSE; | ||
1551 | |||
1552 | osm_gps_map_map_redraw_idle(OSM_GPS_MAP(widget)); | ||
1553 | } | ||
1554 | |||
1555 | priv->drag_mouse_dx = 0; | ||
1556 | priv->drag_mouse_dy = 0; | ||
1557 | priv->drag_counter = 0; | ||
1558 | |||
1559 | return FALSE; | ||
1560 | } | ||
1561 | |||
1562 | static gboolean | ||
1563 | osm_gps_map_motion_notify (GtkWidget *widget, GdkEventMotion *event) | ||
1564 | { | ||
1565 | int x, y; | ||
1566 | GdkModifierType state; | ||
1567 | OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget); | ||
1568 | |||
1569 | if (event->is_hint) | ||
1570 | gdk_window_get_pointer (event->window, &x, &y, &state); | ||
1571 | else | ||
1572 | { | ||
1573 | x = event->x; | ||
1574 | y = event->y; | ||
1575 | state = event->state; | ||
1576 | } | ||
1577 | |||
1578 | // are we being dragged | ||
1579 | if (!(state & GDK_BUTTON1_MASK)) | ||
1580 | return FALSE; | ||
1581 | |||
1582 | priv->drag_counter++; | ||
1583 | |||
1584 | // we havent dragged more than 6 pixels | ||
1585 | if (priv->drag_counter < 6) | ||
1586 | return FALSE; | ||
1587 | |||
1588 | priv->dragging = TRUE; | ||
1589 | |||
1590 | if (priv->map_auto_center) | ||
1591 | g_object_set(G_OBJECT(widget), "auto-center", FALSE, NULL); | ||
1592 | |||
1593 | priv->drag_mouse_dx = x - priv->drag_start_mouse_x; | ||
1594 | priv->drag_mouse_dy = y - priv->drag_start_mouse_y; | ||
1595 | |||
1596 | gdk_draw_drawable ( | ||
1597 | widget->window, | ||
1598 | widget->style->fg_gc[GTK_WIDGET_STATE (widget)], | ||
1599 | priv->pixmap, | ||
1600 | 0,0, | ||
1601 | priv->drag_mouse_dx - EXTRA_BORDER, priv->drag_mouse_dy - EXTRA_BORDER, | ||
1602 | -1,-1); | ||
1603 | |||
1604 | //Paint white outside of the map if dragging. Its less | ||
1605 | //ugly than painting the corrupted map | ||
1606 | if(priv->drag_mouse_dx>EXTRA_BORDER) { | ||
1607 | gdk_draw_rectangle ( | ||
1608 | widget->window, | ||
1609 | widget->style->white_gc, | ||
1610 | TRUE, | ||
1611 | 0, 0, | ||
1612 | priv->drag_mouse_dx - EXTRA_BORDER, | ||
1613 | widget->allocation.height); | ||
1614 | } | ||
1615 | else if (-priv->drag_mouse_dx > EXTRA_BORDER) | ||
1616 | { | ||
1617 | gdk_draw_rectangle ( | ||
1618 | widget->window, | ||
1619 | widget->style->white_gc, | ||
1620 | TRUE, | ||
1621 | priv->drag_mouse_dx + widget->allocation.width + EXTRA_BORDER, 0, | ||
1622 | -priv->drag_mouse_dx - EXTRA_BORDER, | ||
1623 | widget->allocation.height); | ||
1624 | } | ||
1625 | |||
1626 | if (priv->drag_mouse_dy>EXTRA_BORDER) { | ||
1627 | gdk_draw_rectangle ( | ||
1628 | widget->window, | ||
1629 | widget->style->white_gc, | ||
1630 | TRUE, | ||
1631 | 0, 0, | ||
1632 | widget->allocation.width, | ||
1633 | priv->drag_mouse_dy - EXTRA_BORDER); | ||
1634 | } | ||
1635 | else if (-priv->drag_mouse_dy > EXTRA_BORDER) | ||
1636 | { | ||
1637 | gdk_draw_rectangle ( | ||
1638 | widget->window, | ||
1639 | widget->style->white_gc, | ||
1640 | TRUE, | ||
1641 | 0, priv->drag_mouse_dy + widget->allocation.height + EXTRA_BORDER, | ||
1642 | widget->allocation.width, | ||
1643 | -priv->drag_mouse_dy - EXTRA_BORDER); | ||
1644 | } | ||
1645 | |||
1646 | return FALSE; | ||
1647 | } | ||
1648 | |||
1649 | static gboolean | ||
1650 | osm_gps_map_configure (GtkWidget *widget, GdkEventConfigure *event) | ||
1651 | { | ||
1652 | OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget); | ||
1653 | |||
1654 | /* create pixmap */ | ||
1655 | if (priv->pixmap) | ||
1656 | g_object_unref (priv->pixmap); | ||
1657 | |||
1658 | priv->pixmap = gdk_pixmap_new ( | ||
1659 | widget->window, | ||
1660 | widget->allocation.width + EXTRA_BORDER * 2, | ||
1661 | widget->allocation.height + EXTRA_BORDER * 2, | ||
1662 | -1); | ||
1663 | |||
1664 | /* and gc, used for clipping (I think......) */ | ||
1665 | if(priv->gc_map) | ||
1666 | g_object_unref(priv->gc_map); | ||
1667 | |||
1668 | priv->gc_map = gdk_gc_new(priv->pixmap); | ||
1669 | |||
1670 | osm_gps_map_map_redraw(OSM_GPS_MAP(widget)); | ||
1671 | |||
1672 | return FALSE; | ||
1673 | } | ||
1674 | |||
1675 | static gboolean | ||
1676 | osm_gps_map_expose (GtkWidget *widget, GdkEventExpose *event) | ||
1677 | { | ||
1678 | OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget); | ||
1679 | |||
1680 | gdk_draw_drawable ( | ||
1681 | widget->window, | ||
1682 | widget->style->fg_gc[GTK_WIDGET_STATE (widget)], | ||
1683 | priv->pixmap, | ||
1684 | event->area.x + EXTRA_BORDER, event->area.y + EXTRA_BORDER, | ||
1685 | event->area.x, event->area.y, | ||
1686 | event->area.width, event->area.height); | ||
1687 | |||
1688 | return FALSE; | ||
1689 | } | ||
1690 | |||
1691 | static void | ||
1692 | osm_gps_map_class_init (OsmGpsMapClass *klass) | ||
1693 | { | ||
1694 | GObjectClass* object_class = G_OBJECT_CLASS (klass); | ||
1695 | GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); | ||
1696 | |||
1697 | g_type_class_add_private (klass, sizeof (OsmGpsMapPrivate)); | ||
1698 | |||
1699 | object_class->dispose = osm_gps_map_dispose; | ||
1700 | object_class->finalize = osm_gps_map_finalize; | ||
1701 | object_class->constructor = osm_gps_map_constructor; | ||
1702 | object_class->set_property = osm_gps_map_set_property; | ||
1703 | object_class->get_property = osm_gps_map_get_property; | ||
1704 | |||
1705 | widget_class->expose_event = osm_gps_map_expose; | ||
1706 | widget_class->configure_event = osm_gps_map_configure; | ||
1707 | widget_class->button_press_event = osm_gps_map_button_press; | ||
1708 | widget_class->button_release_event = osm_gps_map_button_release; | ||
1709 | widget_class->motion_notify_event = osm_gps_map_motion_notify; | ||
1710 | widget_class->scroll_event = _osm_gps_map_scroll; | ||
1711 | |||
1712 | g_object_class_install_property (object_class, | ||
1713 | PROP_AUTO_CENTER, | ||
1714 | g_param_spec_boolean ("auto-center", | ||
1715 | "auto center", | ||
1716 | "map auto center", | ||
1717 | TRUE, | ||
1718 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT)); | ||
1719 | |||
1720 | g_object_class_install_property (object_class, | ||
1721 | PROP_RECORD_TRIP_HISTORY, | ||
1722 | g_param_spec_boolean ("record-trip-history", | ||
1723 | "record trip history", | ||
1724 | "should all gps points be recorded in a trip history", | ||
1725 | TRUE, | ||
1726 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT)); | ||
1727 | |||
1728 | g_object_class_install_property (object_class, | ||
1729 | PROP_SHOW_TRIP_HISTORY, | ||
1730 | g_param_spec_boolean ("show-trip-history", | ||
1731 | "show trip history", | ||
1732 | "should the recorded trip history be shown on the map", | ||
1733 | TRUE, | ||
1734 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT)); | ||
1735 | |||
1736 | g_object_class_install_property (object_class, | ||
1737 | PROP_AUTO_DOWNLOAD, | ||
1738 | g_param_spec_boolean ("auto-download", | ||
1739 | "auto download", | ||
1740 | "map auto download", | ||
1741 | TRUE, | ||
1742 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT)); | ||
1743 | |||
1744 | g_object_class_install_property (object_class, | ||
1745 | PROP_REPO_URI, | ||
1746 | g_param_spec_string ("repo-uri", | ||
1747 | "repo uri", | ||
1748 | "osm repo uri", | ||
1749 | "http://tile.openstreetmap.org/#Z/#X/#Y.png", | ||
1750 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); | ||
1751 | |||
1752 | g_object_class_install_property (object_class, | ||
1753 | PROP_PROXY_URI, | ||
1754 | g_param_spec_string ("proxy-uri", | ||
1755 | "proxy uri", | ||
1756 | "http proxy uri on NULL", | ||
1757 | NULL, | ||
1758 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); | ||
1759 | |||
1760 | g_object_class_install_property (object_class, | ||
1761 | PROP_TILE_CACHE_DIR, | ||
1762 | g_param_spec_string ("tile-cache", | ||
1763 | "tile cache", | ||
1764 | "osm local tile cache dir", | ||
1765 | "/tmp/Maps", | ||
1766 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); | ||
1767 | |||
1768 | g_object_class_install_property (object_class, | ||
1769 | PROP_TILE_CACHE_DIR_IS_FULL_PATH, | ||
1770 | g_param_spec_boolean ("tile-cache-is-full-path", | ||
1771 | "tile cache is full path", | ||
1772 | "if true, the path passed to tile-cache is interpreted as the full cache path", | ||
1773 | FALSE, | ||
1774 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); | ||
1775 | |||
1776 | g_object_class_install_property (object_class, | ||
1777 | PROP_ZOOM, | ||
1778 | g_param_spec_int ("zoom", | ||
1779 | "zoom", | ||
1780 | "zoom level", | ||
1781 | MIN_ZOOM, /* minimum property value */ | ||
1782 | MAX_ZOOM, /* maximum property value */ | ||
1783 | 3, | ||
1784 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); | ||
1785 | |||
1786 | g_object_class_install_property (object_class, | ||
1787 | PROP_MAX_ZOOM, | ||
1788 | g_param_spec_int ("max-zoom", | ||
1789 | "max zoom", | ||
1790 | "maximum zoom level", | ||
1791 | MIN_ZOOM, /* minimum property value */ | ||
1792 | MAX_ZOOM, /* maximum property value */ | ||
1793 | 17, | ||
1794 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); | ||
1795 | |||
1796 | g_object_class_install_property (object_class, | ||
1797 | PROP_MIN_ZOOM, | ||
1798 | g_param_spec_int ("min-zoom", | ||
1799 | "min zoom", | ||
1800 | "minimum zoom level", | ||
1801 | MIN_ZOOM, /* minimum property value */ | ||
1802 | MAX_ZOOM, /* maximum property value */ | ||
1803 | 1, | ||
1804 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); | ||
1805 | |||
1806 | g_object_class_install_property (object_class, | ||
1807 | PROP_LATITUDE, | ||
1808 | g_param_spec_float ("latitude", | ||
1809 | "latitude", | ||
1810 | "latitude in degrees", | ||
1811 | -90.0, /* minimum property value */ | ||
1812 | 90.0, /* maximum property value */ | ||
1813 | 0, | ||
1814 | G_PARAM_READABLE)); | ||
1815 | |||
1816 | g_object_class_install_property (object_class, | ||
1817 | PROP_LONGITUDE, | ||
1818 | g_param_spec_float ("longitude", | ||
1819 | "longitude", | ||
1820 | "longitude in degrees", | ||
1821 | -180.0, /* minimum property value */ | ||
1822 | 180.0, /* maximum property value */ | ||
1823 | 0, | ||
1824 | G_PARAM_READABLE)); | ||
1825 | |||
1826 | g_object_class_install_property (object_class, | ||
1827 | PROP_MAP_X, | ||
1828 | g_param_spec_int ("map-x", | ||
1829 | "map-x", | ||
1830 | "initial map x location", | ||
1831 | G_MININT, /* minimum property value */ | ||
1832 | G_MAXINT, /* maximum property value */ | ||
1833 | 890, | ||
1834 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); | ||
1835 | |||
1836 | g_object_class_install_property (object_class, | ||
1837 | PROP_MAP_Y, | ||
1838 | g_param_spec_int ("map-y", | ||
1839 | "map-y", | ||
1840 | "initial map y location", | ||
1841 | G_MININT, /* minimum property value */ | ||
1842 | G_MAXINT, /* maximum property value */ | ||
1843 | 515, | ||
1844 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); | ||
1845 | |||
1846 | g_object_class_install_property (object_class, | ||
1847 | PROP_TILES_QUEUED, | ||
1848 | g_param_spec_int ("tiles-queued", | ||
1849 | "tiles-queued", | ||
1850 | "number of tiles currently waiting to download", | ||
1851 | G_MININT, /* minimum property value */ | ||
1852 | G_MAXINT, /* maximum property value */ | ||
1853 | 0, | ||
1854 | G_PARAM_READABLE)); | ||
1855 | |||
1856 | g_object_class_install_property (object_class, | ||
1857 | PROP_GPS_TRACK_WIDTH, | ||
1858 | g_param_spec_int ("gps-track-width", | ||
1859 | "gps-track-width", | ||
1860 | "width of the lines drawn for the gps track", | ||
1861 | 1, /* minimum property value */ | ||
1862 | G_MAXINT, /* maximum property value */ | ||
1863 | 4, | ||
1864 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT)); | ||
1865 | |||
1866 | g_object_class_install_property (object_class, | ||
1867 | PROP_GPS_POINT_R1, | ||
1868 | g_param_spec_int ("gps-track-point-radius", | ||
1869 | "gps-track-point-radius", | ||
1870 | "radius of the gps point inner circle", | ||
1871 | 0, /* minimum property value */ | ||
1872 | G_MAXINT, /* maximum property value */ | ||
1873 | 5, | ||
1874 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT)); | ||
1875 | |||
1876 | g_object_class_install_property (object_class, | ||
1877 | PROP_GPS_POINT_R2, | ||
1878 | g_param_spec_int ("gps-track-highlight-radius", | ||
1879 | "gps-track-highlight-radius", | ||
1880 | "radius of the gps point highlight circle", | ||
1881 | 0, /* minimum property value */ | ||
1882 | G_MAXINT, /* maximum property value */ | ||
1883 | 20, | ||
1884 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT)); | ||
1885 | |||
1886 | } | ||
1887 | |||
1888 | void | ||
1889 | osm_gps_map_download_maps (OsmGpsMap *map, coord_t *pt1, coord_t *pt2, int zoom_start, int zoom_end) | ||
1890 | { | ||
1891 | int i,j,zoom,num_tiles; | ||
1892 | OsmGpsMapPrivate *priv = map->priv; | ||
1893 | |||
1894 | if (pt1 && pt2) | ||
1895 | { | ||
1896 | gchar *filename; | ||
1897 | num_tiles = 0; | ||
1898 | zoom_end = CLAMP(zoom_end, priv->min_zoom, priv->max_zoom); | ||
1899 | g_debug("Download maps: z:%d->%d",zoom_start, zoom_end); | ||
1900 | |||
1901 | for(zoom=zoom_start; zoom<=zoom_end; zoom++) | ||
1902 | { | ||
1903 | int x1,y1,x2,y2; | ||
1904 | |||
1905 | x1 = (int)floor((float)lon2pixel(zoom, pt1->rlon) / (float)TILESIZE); | ||
1906 | y1 = (int)floor((float)lat2pixel(zoom, pt1->rlat) / (float)TILESIZE); | ||
1907 | |||
1908 | x2 = (int)floor((float)lon2pixel(zoom, pt2->rlon) / (float)TILESIZE); | ||
1909 | y2 = (int)floor((float)lat2pixel(zoom, pt2->rlat) / (float)TILESIZE); | ||
1910 | |||
1911 | // loop x1-x2 | ||
1912 | for(i=x1; i<=x2; i++) | ||
1913 | { | ||
1914 | // loop y1 - y2 | ||
1915 | for(j=y1; j<=y2; j++) | ||
1916 | { | ||
1917 | // x = i, y = j | ||
1918 | filename = g_strdup_printf("%s/%u/%u/%u.png", priv->cache_dir, zoom, i, j); | ||
1919 | #ifndef NO_DISK_CACHE | ||
1920 | if (!g_file_test(filename, G_FILE_TEST_EXISTS)) | ||
1921 | #endif | ||
1922 | { | ||
1923 | osm_gps_map_download_tile(map, zoom, i, j, FALSE); | ||
1924 | num_tiles++; | ||
1925 | } | ||
1926 | g_free(filename); | ||
1927 | } | ||
1928 | } | ||
1929 | g_debug("DL @Z:%d = %d tiles",zoom,num_tiles); | ||
1930 | } | ||
1931 | } | ||
1932 | } | ||
1933 | |||
1934 | void | ||
1935 | osm_gps_map_get_bbox (OsmGpsMap *map, coord_t *pt1, coord_t *pt2) | ||
1936 | { | ||
1937 | OsmGpsMapPrivate *priv = map->priv; | ||
1938 | |||
1939 | if (pt1 && pt2) { | ||
1940 | pt1->rlat = pixel2lat(priv->map_zoom, priv->map_y); | ||
1941 | pt1->rlon = pixel2lon(priv->map_zoom, priv->map_x); | ||
1942 | pt2->rlat = pixel2lat(priv->map_zoom, priv->map_y + GTK_WIDGET(map)->allocation.height); | ||
1943 | pt2->rlon = pixel2lon(priv->map_zoom, priv->map_x + GTK_WIDGET(map)->allocation.width); | ||
1944 | |||
1945 | g_debug("BBOX: %f %f %f %f", pt1->rlat, pt1->rlon, pt2->rlat, pt2->rlon); | ||
1946 | } | ||
1947 | } | ||
1948 | |||
1949 | void | ||
1950 | osm_gps_map_set_mapcenter (OsmGpsMap *map, float latitude, float longitude, int zoom) | ||
1951 | { | ||
1952 | osm_gps_map_set_center (map, latitude, longitude); | ||
1953 | osm_gps_map_set_zoom (map, zoom); | ||
1954 | } | ||
1955 | |||
1956 | void | ||
1957 | osm_gps_map_set_center (OsmGpsMap *map, float latitude, float longitude) | ||
1958 | { | ||
1959 | int pixel_x, pixel_y; | ||
1960 | OsmGpsMapPrivate *priv; | ||
1961 | |||
1962 | g_return_if_fail (OSM_IS_GPS_MAP (map)); | ||
1963 | priv = map->priv; | ||
1964 | |||
1965 | priv->center_rlat = deg2rad(latitude); | ||
1966 | priv->center_rlon = deg2rad(longitude); | ||
1967 | priv->center_coord_set = TRUE; | ||
1968 | |||
1969 | // pixel_x,y, offsets | ||
1970 | pixel_x = lon2pixel(priv->map_zoom, priv->center_rlon); | ||
1971 | pixel_y = lat2pixel(priv->map_zoom, priv->center_rlat); | ||
1972 | |||
1973 | priv->map_x = pixel_x - GTK_WIDGET(map)->allocation.width/2; | ||
1974 | priv->map_y = pixel_y - GTK_WIDGET(map)->allocation.height/2; | ||
1975 | |||
1976 | osm_gps_map_map_redraw_idle(map); | ||
1977 | } | ||
1978 | |||
1979 | int | ||
1980 | osm_gps_map_set_zoom (OsmGpsMap *map, int zoom) | ||
1981 | { | ||
1982 | int zoom_old; | ||
1983 | double factor = 1.0; | ||
1984 | int width_center, height_center; | ||
1985 | OsmGpsMapPrivate *priv; | ||
1986 | |||
1987 | g_return_val_if_fail (OSM_IS_GPS_MAP (map), 0); | ||
1988 | priv = map->priv; | ||
1989 | |||
1990 | if (zoom != priv->map_zoom) | ||
1991 | { | ||
1992 | width_center = GTK_WIDGET(map)->allocation.width / 2; | ||
1993 | height_center = GTK_WIDGET(map)->allocation.height / 2; | ||
1994 | |||
1995 | zoom_old = priv->map_zoom; | ||
1996 | //constrain zoom min_zoom -> max_zoom | ||
1997 | priv->map_zoom = CLAMP(zoom, priv->min_zoom, priv->max_zoom); | ||
1998 | |||
1999 | if (priv->center_coord_set) | ||
2000 | { | ||
2001 | priv->map_x = lon2pixel(priv->map_zoom, priv->center_rlon) - width_center; | ||
2002 | priv->map_y = lat2pixel(priv->map_zoom, priv->center_rlat) - height_center; | ||
2003 | } | ||
2004 | else | ||
2005 | { | ||
2006 | factor = exp(priv->map_zoom * M_LN2)/exp(zoom_old * M_LN2); | ||
2007 | priv->map_x = ((priv->map_x + width_center) * factor) - width_center; | ||
2008 | priv->map_y = ((priv->map_y + height_center) * factor) - height_center; | ||
2009 | } | ||
2010 | |||
2011 | g_debug("Zoom changed from %d to %d factor:%f x:%d", | ||
2012 | zoom_old, priv->map_zoom, factor, priv->map_x); | ||
2013 | |||
2014 | osm_gps_map_map_redraw_idle(map); | ||
2015 | } | ||
2016 | return priv->map_zoom; | ||
2017 | } | ||
2018 | |||
2019 | void | ||
2020 | osm_gps_map_add_track (OsmGpsMap *map, GSList *track) | ||
2021 | { | ||
2022 | OsmGpsMapPrivate *priv; | ||
2023 | |||
2024 | g_return_if_fail (OSM_IS_GPS_MAP (map)); | ||
2025 | priv = map->priv; | ||
2026 | |||
2027 | if (track) { | ||
2028 | priv->tracks = g_slist_append(priv->tracks, track); | ||
2029 | osm_gps_map_map_redraw_idle(map); | ||
2030 | } | ||
2031 | } | ||
2032 | |||
2033 | void | ||
2034 | osm_gps_map_clear_tracks (OsmGpsMap *map) | ||
2035 | { | ||
2036 | g_return_if_fail (OSM_IS_GPS_MAP (map)); | ||
2037 | |||
2038 | osm_gps_map_free_tracks(map); | ||
2039 | osm_gps_map_map_redraw_idle(map); | ||
2040 | } | ||
2041 | |||
2042 | void | ||
2043 | osm_gps_map_add_image (OsmGpsMap *map, float latitude, float longitude, GdkPixbuf *image) | ||
2044 | { | ||
2045 | g_return_if_fail (OSM_IS_GPS_MAP (map)); | ||
2046 | |||
2047 | if (image) { | ||
2048 | OsmGpsMapPrivate *priv = map->priv; | ||
2049 | image_t *im; | ||
2050 | |||
2051 | //cache w/h for speed, and add image to list | ||
2052 | im = g_new0(image_t,1); | ||
2053 | im->w = gdk_pixbuf_get_width(image); | ||
2054 | im->h = gdk_pixbuf_get_width(image); | ||
2055 | im->pt.rlat = deg2rad(latitude); | ||
2056 | im->pt.rlon = deg2rad(longitude); | ||
2057 | |||
2058 | g_object_ref(image); | ||
2059 | im->image = image; | ||
2060 | |||
2061 | priv->images = g_slist_append(priv->images, im); | ||
2062 | |||
2063 | osm_gps_map_map_redraw_idle(map); | ||
2064 | } | ||
2065 | } | ||
2066 | |||
2067 | void | ||
2068 | osm_gps_map_clear_images (OsmGpsMap *map) | ||
2069 | { | ||
2070 | g_return_if_fail (OSM_IS_GPS_MAP (map)); | ||
2071 | |||
2072 | osm_gps_map_free_images(map); | ||
2073 | osm_gps_map_map_redraw_idle(map); | ||
2074 | } | ||
2075 | |||
2076 | void | ||
2077 | osm_gps_map_osd_speed (OsmGpsMap *map, float speed) | ||
2078 | { | ||
2079 | OsmGpsMapPrivate *priv; | ||
2080 | |||
2081 | PangoContext *context = NULL; | ||
2082 | PangoLayout *layout = NULL; | ||
2083 | PangoFontDescription *desc = NULL; | ||
2084 | |||
2085 | GdkColor color; | ||
2086 | GdkGC *gc; | ||
2087 | |||
2088 | gchar *buffer; | ||
2089 | //static int x = 10, y = 10; | ||
2090 | static int width = 0, height = 0; | ||
2091 | |||
2092 | g_return_if_fail (OSM_IS_GPS_MAP (map)); | ||
2093 | priv = map->priv; | ||
2094 | |||
2095 | buffer = g_strdup_printf("%.0f", speed); | ||
2096 | |||
2097 | /* pango initialisation */ | ||
2098 | context = gtk_widget_get_pango_context (GTK_WIDGET(map)); | ||
2099 | layout = pango_layout_new (context); | ||
2100 | desc = pango_font_description_new(); | ||
2101 | |||
2102 | pango_font_description_set_size (desc, 40 * PANGO_SCALE); | ||
2103 | pango_layout_set_font_description (layout, desc); | ||
2104 | pango_layout_set_text (layout, buffer, strlen(buffer)); | ||
2105 | |||
2106 | gc = gdk_gc_new (GTK_WIDGET(map)->window); | ||
2107 | |||
2108 | color.red = (0 > 50) ? 0xffff : 0; | ||
2109 | color.green = 0; | ||
2110 | color.blue = 0; | ||
2111 | |||
2112 | gdk_gc_set_rgb_fg_color (gc, &color); | ||
2113 | |||
2114 | /* faster / less flicker alternative:*/ | ||
2115 | gdk_draw_drawable ( | ||
2116 | GTK_WIDGET(map)->window, | ||
2117 | GTK_WIDGET(map)->style->fg_gc[GTK_WIDGET_STATE(map)], | ||
2118 | priv->pixmap, | ||
2119 | 0,0, | ||
2120 | 0,0, | ||
2121 | width+10,width+10); | ||
2122 | |||
2123 | gdk_draw_layout(GTK_WIDGET(map)->window, | ||
2124 | gc, | ||
2125 | 0, 0, | ||
2126 | layout); | ||
2127 | |||
2128 | /* set width and height */ | ||
2129 | pango_layout_get_pixel_size(layout, &width, &height); | ||
2130 | |||
2131 | g_free(buffer); | ||
2132 | pango_font_description_free (desc); | ||
2133 | g_object_unref (layout); | ||
2134 | g_object_unref (gc); | ||
2135 | } | ||
2136 | |||
2137 | void | ||
2138 | osm_gps_map_draw_gps (OsmGpsMap *map, float latitude, float longitude, float heading) | ||
2139 | { | ||
2140 | int pixel_x, pixel_y; | ||
2141 | OsmGpsMapPrivate *priv; | ||
2142 | |||
2143 | g_return_if_fail (OSM_IS_GPS_MAP (map)); | ||
2144 | priv = map->priv; | ||
2145 | |||
2146 | priv->gps->rlat = deg2rad(latitude); | ||
2147 | priv->gps->rlon = deg2rad(longitude); | ||
2148 | priv->gps_valid = TRUE; | ||
2149 | |||
2150 | // pixel_x,y, offsets | ||
2151 | pixel_x = lon2pixel(priv->map_zoom, priv->gps->rlon); | ||
2152 | pixel_y = lat2pixel(priv->map_zoom, priv->gps->rlat); | ||
2153 | |||
2154 | //If trip marker add to list of gps points. | ||
2155 | if (priv->record_trip_history) { | ||
2156 | coord_t *tp = g_new0(coord_t,1); | ||
2157 | tp->rlat = priv->gps->rlat; | ||
2158 | tp->rlon = priv->gps->rlon; | ||
2159 | priv->trip_history = g_slist_append(priv->trip_history, tp); | ||
2160 | } | ||
2161 | |||
2162 | // dont draw anything if we are dragging | ||
2163 | if (priv->dragging) { | ||
2164 | g_debug("Dragging"); | ||
2165 | return; | ||
2166 | } | ||
2167 | |||
2168 | //Automatically center the map if the track approaches the edge | ||
2169 | if(priv->map_auto_center) { | ||
2170 | int x = pixel_x - priv->map_x; | ||
2171 | int y = pixel_y - priv->map_y; | ||
2172 | int width = GTK_WIDGET(map)->allocation.width; | ||
2173 | int height = GTK_WIDGET(map)->allocation.height; | ||
2174 | if( x < (width/2 - width/8) || x > (width/2 + width/8) || | ||
2175 | y < (height/2 - height/8) || y > (height/2 + height/8)) { | ||
2176 | |||
2177 | priv->map_x = pixel_x - GTK_WIDGET(map)->allocation.width/2; | ||
2178 | priv->map_y = pixel_y - GTK_WIDGET(map)->allocation.height/2; | ||
2179 | priv->center_coord_set = FALSE; | ||
2180 | } | ||
2181 | } | ||
2182 | |||
2183 | // this redraws the map (including the gps track, and adjusts the | ||
2184 | // map center if it was changed | ||
2185 | osm_gps_map_map_redraw_idle(map); | ||
2186 | } | ||
2187 | |||
2188 | void | ||
2189 | osm_gps_map_clear_gps (OsmGpsMap *map) | ||
2190 | { | ||
2191 | osm_gps_map_free_trip(map); | ||
2192 | osm_gps_map_map_redraw_idle(map); | ||
2193 | } | ||
2194 | |||
2195 | coord_t | ||
2196 | osm_gps_map_get_co_ordinates (OsmGpsMap *map, int pixel_x, int pixel_y) | ||
2197 | { | ||
2198 | coord_t coord; | ||
2199 | OsmGpsMapPrivate *priv = map->priv; | ||
2200 | |||
2201 | coord.rlat = pixel2lat(priv->map_zoom, priv->map_y + pixel_y); | ||
2202 | coord.rlon = pixel2lon(priv->map_zoom, priv->map_x + pixel_x); | ||
2203 | return coord; | ||
2204 | } | ||
2205 | |||
2206 | GtkWidget * | ||
2207 | osm_gps_map_new (void) | ||
2208 | { | ||
2209 | return g_object_new (OSM_TYPE_GPS_MAP, NULL); | ||
2210 | } | ||
2211 | |||
2212 | void | ||
2213 | osm_gps_map_screen_to_geographic (OsmGpsMap *map, gint pixel_x, gint pixel_y, | ||
2214 | gfloat *latitude, gfloat *longitude) | ||
2215 | { | ||
2216 | OsmGpsMapPrivate *priv; | ||
2217 | |||
2218 | g_return_if_fail (OSM_IS_GPS_MAP (map)); | ||
2219 | priv = map->priv; | ||
2220 | |||
2221 | if (latitude) | ||
2222 | *latitude = rad2deg(pixel2lat(priv->map_zoom, priv->map_y + pixel_y)); | ||
2223 | if (longitude) | ||
2224 | *longitude = rad2deg(pixel2lon(priv->map_zoom, priv->map_x + pixel_x)); | ||
2225 | } | ||
2226 | |||
2227 | void | ||
2228 | osm_gps_map_geographic_to_screen (OsmGpsMap *map, | ||
2229 | gfloat latitude, gfloat longitude, | ||
2230 | gint *pixel_x, gint *pixel_y) | ||
2231 | { | ||
2232 | OsmGpsMapPrivate *priv; | ||
2233 | |||
2234 | g_return_if_fail (OSM_IS_GPS_MAP (map)); | ||
2235 | priv = map->priv; | ||
2236 | |||
2237 | if (pixel_x) | ||
2238 | *pixel_x = lon2pixel(priv->map_zoom, deg2rad(longitude)) - priv->map_x; | ||
2239 | if (pixel_y) | ||
2240 | *pixel_y = lat2pixel(priv->map_zoom, deg2rad(latitude)) - priv->map_y; | ||
2241 | } | ||
2242 | |||
2243 | void | ||
2244 | osm_gps_map_scroll (OsmGpsMap *map, gint dx, gint dy) | ||
2245 | { | ||
2246 | OsmGpsMapPrivate *priv; | ||
2247 | |||
2248 | g_return_if_fail (OSM_IS_GPS_MAP (map)); | ||
2249 | priv = map->priv; | ||
2250 | |||
2251 | priv->center_coord_set = FALSE; | ||
2252 | priv->map_x += dx; | ||
2253 | priv->map_y += dy; | ||
2254 | |||
2255 | osm_gps_map_map_redraw_idle (map); | ||
2256 | } | ||
2257 |