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1 | /* -*- 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/gstdio.h> |
37 | #include <glib/gprintf.h> |
38 | #include <libsoup/soup.h> |
39 | |
40 | #include "converter.h" |
41 | #include "osm-gps-map-types.h" |
42 | #include "osm-gps-map.h" |
43 | |
44 | #ifdef USE_CAIRO |
45 | #include <cairo.h> |
46 | #endif |
47 | |
48 | #define ENABLE_DEBUG 0 |
49 | |
50 | #define EXTRA_BORDER (TILESIZE / 2) |
51 | |
52 | struct _OsmGpsMapPrivate |
53 | { |
54 | GHashTable *tile_queue; |
55 | GHashTable *missing_tiles; |
56 | GHashTable *tile_cache; |
57 | |
58 | int map_zoom; |
59 | int max_zoom; |
60 | int min_zoom; |
61 | gboolean map_auto_center; |
62 | gboolean map_auto_download; |
63 | int map_x; |
64 | int map_y; |
65 | |
66 | /* Latitude and longitude of the center of the map, in radians */ |
67 | gfloat center_rlat; |
68 | gfloat center_rlon; |
69 | |
70 | guint max_tile_cache_size; |
71 | /* Incremented at each redraw */ |
72 | guint redraw_cycle; |
73 | /* ID of the idle redraw operation */ |
74 | guint idle_map_redraw; |
75 | |
76 | //how we download tiles |
77 | SoupSession *soup_session; |
78 | char *proxy_uri; |
79 | |
80 | //where downloaded tiles are cached |
81 | char *cache_dir; |
82 | gboolean cache_dir_is_full_path; |
83 | |
84 | //contains flags indicating the various special characters |
85 | //the uri string contains, that will be replaced when calculating |
86 | //the uri to download. |
87 | OsmGpsMapSource_t map_source; |
88 | char *repo_uri; |
89 | char *image_format; |
90 | int uri_format; |
91 | //flag indicating if the map source is located on the google |
92 | gboolean the_google; |
93 | |
94 | //gps tracking state |
95 | gboolean record_trip_history; |
96 | gboolean show_trip_history; |
97 | GSList *trip_history; |
98 | coord_t *gps; |
99 | gboolean gps_valid; |
100 | |
101 | //additional images or tracks added to the map |
102 | GSList *tracks; |
103 | GSList *images; |
104 | |
105 | //Used for storing the joined tiles |
106 | GdkPixmap *pixmap; |
107 | GdkGC *gc_map; |
108 | |
109 | //The tile painted when one cannot be found |
110 | GdkPixbuf *null_tile; |
111 | |
112 | //For tracking click and drag |
113 | int drag_counter; |
114 | int drag_mouse_dx; |
115 | int drag_mouse_dy; |
116 | int drag_start_mouse_x; |
117 | int drag_start_mouse_y; |
118 | int drag_start_map_x; |
119 | int drag_start_map_y; |
120 | |
121 | //for customizing the redering of the gps track |
122 | int ui_gps_track_width; |
123 | int ui_gps_point_inner_radius; |
124 | int ui_gps_point_outer_radius; |
125 | |
126 | guint is_disposed : 1; |
127 | guint dragging : 1; |
128 | guint center_coord_set : 1; |
129 | }; |
130 | |
131 | #define OSM_GPS_MAP_PRIVATE(o) (OSM_GPS_MAP (o)->priv) |
132 | |
133 | typedef struct |
134 | { |
135 | GdkPixbuf *pixbuf; |
136 | /* We keep track of the number of the redraw cycle this tile was last used, |
137 | * so that osm_gps_map_purge_cache() can remove the older ones */ |
138 | guint redraw_cycle; |
139 | } OsmCachedTile; |
140 | |
141 | enum |
142 | { |
143 | PROP_0, |
144 | |
145 | PROP_AUTO_CENTER, |
146 | PROP_RECORD_TRIP_HISTORY, |
147 | PROP_SHOW_TRIP_HISTORY, |
148 | PROP_AUTO_DOWNLOAD, |
149 | PROP_REPO_URI, |
150 | PROP_PROXY_URI, |
151 | PROP_TILE_CACHE_DIR, |
152 | PROP_TILE_CACHE_DIR_IS_FULL_PATH, |
153 | PROP_ZOOM, |
154 | PROP_MAX_ZOOM, |
155 | PROP_MIN_ZOOM, |
156 | PROP_LATITUDE, |
157 | PROP_LONGITUDE, |
158 | PROP_MAP_X, |
159 | PROP_MAP_Y, |
160 | PROP_TILES_QUEUED, |
161 | PROP_GPS_TRACK_WIDTH, |
162 | PROP_GPS_POINT_R1, |
163 | PROP_GPS_POINT_R2, |
164 | PROP_MAP_SOURCE, |
165 | PROP_IMAGE_FORMAT |
166 | }; |
167 | |
168 | G_DEFINE_TYPE (OsmGpsMap, osm_gps_map, GTK_TYPE_DRAWING_AREA); |
169 | |
170 | /* |
171 | * Drawing function forward defintions |
172 | */ |
173 | static gchar *replace_string(const gchar *src, const gchar *from, const gchar *to); |
174 | static void inspect_map_uri(OsmGpsMap *map); |
175 | static gchar *replace_map_uri(OsmGpsMap *map, const gchar *uri, int zoom, int x, int y); |
176 | static void osm_gps_map_print_images (OsmGpsMap *map); |
177 | static void osm_gps_map_draw_gps_point (OsmGpsMap *map); |
178 | static void osm_gps_map_blit_tile(OsmGpsMap *map, GdkPixbuf *pixbuf, int offset_x, int offset_y); |
179 | #ifdef LIBSOUP22 |
180 | static void osm_gps_map_tile_download_complete (SoupMessage *msg, gpointer user_data); |
181 | #else |
182 | static void osm_gps_map_tile_download_complete (SoupSession *session, SoupMessage *msg, gpointer user_data); |
183 | #endif |
184 | static void osm_gps_map_download_tile (OsmGpsMap *map, int zoom, int x, int y, gboolean redraw); |
185 | static void osm_gps_map_load_tile (OsmGpsMap *map, int zoom, int x, int y, int offset_x, int offset_y); |
186 | static void osm_gps_map_fill_tiles_pixel (OsmGpsMap *map); |
187 | static gboolean osm_gps_map_map_redraw (OsmGpsMap *map); |
188 | static void osm_gps_map_map_redraw_idle (OsmGpsMap *map); |
189 | |
190 | static void |
191 | cached_tile_free (OsmCachedTile *tile) |
192 | { |
193 | g_object_unref (tile->pixbuf); |
194 | g_slice_free (OsmCachedTile, tile); |
195 | } |
196 | |
197 | /* |
198 | * Description: |
199 | * Find and replace text within a string. |
200 | * |
201 | * Parameters: |
202 | * src (in) - pointer to source string |
203 | * from (in) - pointer to search text |
204 | * to (in) - pointer to replacement text |
205 | * |
206 | * Returns: |
207 | * Returns a pointer to dynamically-allocated memory containing string |
208 | * with occurences of the text pointed to by 'from' replaced by with the |
209 | * text pointed to by 'to'. |
210 | */ |
211 | static gchar * |
212 | replace_string(const gchar *src, const gchar *from, const gchar *to) |
213 | { |
214 | size_t size = strlen(src) + 1; |
215 | size_t fromlen = strlen(from); |
216 | size_t tolen = strlen(to); |
217 | |
218 | /* Allocate the first chunk with enough for the original string. */ |
219 | gchar *value = g_malloc(size); |
220 | |
221 | |
222 | /* We need to return 'value', so let's make a copy to mess around with. */ |
223 | gchar *dst = value; |
224 | |
225 | if ( value != NULL ) |
226 | { |
227 | for ( ;; ) |
228 | { |
229 | /* Try to find the search text. */ |
230 | const gchar *match = g_strstr_len(src, size, from); |
231 | if ( match != NULL ) |
232 | { |
233 | gchar *temp; |
234 | /* Find out how many characters to copy up to the 'match'. */ |
235 | size_t count = match - src; |
236 | |
237 | |
238 | /* Calculate the total size the string will be after the |
239 | * replacement is performed. */ |
240 | size += tolen - fromlen; |
241 | |
242 | temp = g_realloc(value, size); |
243 | if ( temp == NULL ) |
244 | { |
245 | g_free(value); |
246 | return NULL; |
247 | } |
248 | |
249 | /* we'll want to return 'value' eventually, so let's point it |
250 | * to the memory that we are now working with. |
251 | * And let's not forget to point to the right location in |
252 | * the destination as well. */ |
253 | dst = temp + (dst - value); |
254 | value = temp; |
255 | |
256 | /* |
257 | * Copy from the source to the point where we matched. Then |
258 | * move the source pointer ahead by the amount we copied. And |
259 | * move the destination pointer ahead by the same amount. |
260 | */ |
261 | g_memmove(dst, src, count); |
262 | src += count; |
263 | dst += count; |
264 | |
265 | /* Now copy in the replacement text 'to' at the position of |
266 | * the match. Adjust the source pointer by the text we replaced. |
267 | * Adjust the destination pointer by the amount of replacement |
268 | * text. */ |
269 | g_memmove(dst, to, tolen); |
270 | src += fromlen; |
271 | dst += tolen; |
272 | } |
273 | else |
274 | { |
275 | /* |
276 | * Copy any remaining part of the string. This includes the null |
277 | * termination character. |
278 | */ |
279 | strcpy(dst, src); |
280 | break; |
281 | } |
282 | } |
283 | } |
284 | return value; |
285 | } |
286 | |
287 | static void |
288 | map_convert_coords_to_quadtree_string(OsmGpsMap *map, gint x, gint y, gint zoomlevel, |
289 | gchar *buffer, const gchar initial, |
290 | const gchar *const quadrant) |
291 | { |
292 | gchar *ptr = buffer; |
293 | gint n; |
294 | |
295 | if (initial) |
296 | *ptr++ = initial; |
297 | |
298 | for(n = zoomlevel-1; n >= 0; n--) |
299 | { |
300 | gint xbit = (x >> n) & 1; |
301 | gint ybit = (y >> n) & 1; |
302 | *ptr++ = quadrant[xbit + 2 * ybit]; |
303 | } |
304 | |
305 | *ptr++ = '\0'; |
306 | } |
307 | |
308 | |
309 | static void |
310 | inspect_map_uri(OsmGpsMap *map) |
311 | { |
312 | OsmGpsMapPrivate *priv = map->priv; |
313 | |
314 | if (g_strrstr(priv->repo_uri, URI_MARKER_X)) |
315 | priv->uri_format |= URI_HAS_X; |
316 | |
317 | if (g_strrstr(priv->repo_uri, URI_MARKER_Y)) |
318 | priv->uri_format |= URI_HAS_Y; |
319 | |
320 | if (g_strrstr(priv->repo_uri, URI_MARKER_Z)) |
321 | priv->uri_format |= URI_HAS_Z; |
322 | |
323 | if (g_strrstr(priv->repo_uri, URI_MARKER_S)) |
324 | priv->uri_format |= URI_HAS_S; |
325 | |
326 | if (g_strrstr(priv->repo_uri, URI_MARKER_Q)) |
327 | priv->uri_format |= URI_HAS_Q; |
328 | |
329 | if (g_strrstr(priv->repo_uri, URI_MARKER_Q0)) |
330 | priv->uri_format |= URI_HAS_Q0; |
331 | |
332 | if (g_strrstr(priv->repo_uri, URI_MARKER_YS)) |
333 | priv->uri_format |= URI_HAS_YS; |
334 | |
335 | if (g_strrstr(priv->repo_uri, URI_MARKER_R)) |
336 | priv->uri_format |= URI_HAS_R; |
337 | |
338 | if (g_strrstr(priv->repo_uri, "google.com")) |
339 | priv->the_google = TRUE; |
340 | |
341 | g_debug("URI Format: 0x%X (google: %X)", priv->uri_format, priv->the_google); |
342 | |
343 | } |
344 | |
345 | static gchar * |
346 | replace_map_uri(OsmGpsMap *map, const gchar *uri, int zoom, int x, int y) |
347 | { |
348 | OsmGpsMapPrivate *priv = map->priv; |
349 | char *url; |
350 | unsigned int i; |
351 | char location[22]; |
352 | |
353 | i = 1; |
354 | url = g_strdup(uri); |
355 | while (i < URI_FLAG_END) |
356 | { |
357 | char *s = NULL; |
358 | char *old; |
359 | |
360 | old = url; |
361 | switch(i & priv->uri_format) |
362 | { |
363 | case URI_HAS_X: |
364 | s = g_strdup_printf("%d", x); |
365 | url = replace_string(url, URI_MARKER_X, s); |
366 | //g_debug("FOUND " URI_MARKER_X); |
367 | break; |
368 | case URI_HAS_Y: |
369 | s = g_strdup_printf("%d", y); |
370 | url = replace_string(url, URI_MARKER_Y, s); |
371 | //g_debug("FOUND " URI_MARKER_Y); |
372 | break; |
373 | case URI_HAS_Z: |
374 | s = g_strdup_printf("%d", zoom); |
375 | url = replace_string(url, URI_MARKER_Z, s); |
376 | //g_debug("FOUND " URI_MARKER_Z); |
377 | break; |
378 | case URI_HAS_S: |
379 | s = g_strdup_printf("%d", priv->max_zoom-zoom); |
380 | url = replace_string(url, URI_MARKER_S, s); |
381 | //g_debug("FOUND " URI_MARKER_S); |
382 | break; |
383 | case URI_HAS_Q: |
384 | map_convert_coords_to_quadtree_string(map,x,y,zoom,location,'t',"qrts"); |
385 | s = g_strdup_printf("%s", location); |
386 | url = replace_string(url, URI_MARKER_Q, s); |
387 | //g_debug("FOUND " URI_MARKER_Q); |
388 | break; |
389 | case URI_HAS_Q0: |
390 | map_convert_coords_to_quadtree_string(map,x,y,zoom,location,'\0', "0123"); |
391 | s = g_strdup_printf("%s", location); |
392 | url = replace_string(url, URI_MARKER_Q0, s); |
393 | //g_debug("FOUND " URI_MARKER_Q0); |
394 | break; |
395 | case URI_HAS_YS: |
396 | // s = g_strdup_printf("%d", y); |
397 | // url = replace_string(url, URI_MARKER_YS, s); |
398 | g_warning("FOUND " URI_MARKER_YS " NOT IMPLEMENTED"); |
399 | // retval = g_strdup_printf(repo->url, |
400 | // tilex, |
401 | // (1 << (MAX_ZOOM - zoom)) - tiley - 1, |
402 | // zoom - (MAX_ZOOM - 17)); |
403 | break; |
404 | case URI_HAS_R: |
405 | s = g_strdup_printf("%d", g_random_int_range(0,4)); |
406 | url = replace_string(url, URI_MARKER_R, s); |
407 | //g_debug("FOUND " URI_MARKER_R); |
408 | break; |
409 | default: |
410 | s = NULL; |
411 | break; |
412 | } |
413 | |
414 | if (s) { |
415 | g_free(s); |
416 | g_free(old); |
417 | } |
418 | |
419 | i = (i << 1); |
420 | |
421 | } |
422 | |
423 | return url; |
424 | } |
425 | |
426 | static void |
427 | my_log_handler (const gchar * log_domain, GLogLevelFlags log_level, const gchar * message, gpointer user_data) |
428 | { |
429 | if (!(log_level & G_LOG_LEVEL_DEBUG) || ENABLE_DEBUG) |
430 | g_log_default_handler (log_domain, log_level, message, user_data); |
431 | } |
432 | |
433 | static float |
434 | osm_gps_map_get_scale_at_point(int zoom, float rlat, float rlon) |
435 | { |
436 | /* world at zoom 1 == 512 pixels */ |
437 | return cos(rlat) * M_PI * OSM_EQ_RADIUS / (1<<(7+zoom)); |
438 | } |
439 | |
440 | /* clears the trip list and all resources */ |
441 | static void |
442 | osm_gps_map_free_trip (OsmGpsMap *map) |
443 | { |
444 | OsmGpsMapPrivate *priv = map->priv; |
445 | if (priv->trip_history) { |
446 | g_slist_foreach(priv->trip_history, (GFunc) g_free, NULL); |
447 | g_slist_free(priv->trip_history); |
448 | priv->trip_history = NULL; |
449 | } |
450 | } |
451 | |
452 | /* clears the tracks and all resources */ |
453 | static void |
454 | osm_gps_map_free_tracks (OsmGpsMap *map) |
455 | { |
456 | OsmGpsMapPrivate *priv = map->priv; |
457 | if (priv->tracks) |
458 | { |
459 | GSList* tmp = priv->tracks; |
460 | while (tmp != NULL) |
461 | { |
462 | g_slist_foreach(tmp->data, (GFunc) g_free, NULL); |
463 | g_slist_free(tmp->data); |
464 | tmp = g_slist_next(tmp); |
465 | } |
466 | g_slist_free(priv->tracks); |
467 | priv->tracks = NULL; |
468 | } |
469 | } |
470 | |
471 | /* free the poi image lists */ |
472 | static void |
473 | osm_gps_map_free_images (OsmGpsMap *map) |
474 | { |
475 | OsmGpsMapPrivate *priv = map->priv; |
476 | if (priv->images) { |
477 | GSList *list; |
478 | for(list = priv->images; list != NULL; list = list->next) |
479 | { |
480 | image_t *im = list->data; |
481 | g_object_unref(im->image); |
482 | g_free(im); |
483 | } |
484 | g_slist_free(priv->images); |
485 | priv->images = NULL; |
486 | } |
487 | } |
488 | |
489 | static void |
490 | osm_gps_map_print_images (OsmGpsMap *map) |
491 | { |
492 | GSList *list; |
493 | int x,y,pixel_x,pixel_y; |
494 | int min_x = 0,min_y = 0,max_x = 0,max_y = 0; |
495 | int map_x0, map_y0; |
496 | OsmGpsMapPrivate *priv = map->priv; |
497 | |
498 | map_x0 = priv->map_x - EXTRA_BORDER; |
499 | map_y0 = priv->map_y - EXTRA_BORDER; |
500 | for(list = priv->images; list != NULL; list = list->next) |
501 | { |
502 | image_t *im = list->data; |
503 | |
504 | // pixel_x,y, offsets |
505 | pixel_x = lon2pixel(priv->map_zoom, im->pt.rlon); |
506 | pixel_y = lat2pixel(priv->map_zoom, im->pt.rlat); |
507 | |
508 | g_debug("Image %dx%d @: %f,%f (%d,%d)", |
509 | im->w, im->h, |
510 | im->pt.rlat, im->pt.rlon, |
511 | pixel_x, pixel_y); |
512 | |
513 | x = pixel_x - map_x0; |
514 | y = pixel_y - map_y0; |
515 | |
516 | gdk_draw_pixbuf ( |
517 | priv->pixmap, |
518 | priv->gc_map, |
519 | im->image, |
520 | 0,0, |
521 | x-(im->w/2),y-(im->h/2), |
522 | im->w,im->h, |
523 | GDK_RGB_DITHER_NONE, 0, 0); |
524 | |
525 | max_x = MAX(x+im->w,max_x); |
526 | min_x = MIN(x-im->w,min_x); |
527 | max_y = MAX(y+im->h,max_y); |
528 | min_y = MIN(y-im->h,min_y); |
529 | } |
530 | |
531 | gtk_widget_queue_draw_area ( |
532 | GTK_WIDGET(map), |
533 | min_x + EXTRA_BORDER, min_y + EXTRA_BORDER, |
534 | max_x + EXTRA_BORDER, max_y + EXTRA_BORDER); |
535 | |
536 | } |
537 | |
538 | static void |
539 | osm_gps_map_draw_gps_point (OsmGpsMap *map) |
540 | { |
541 | OsmGpsMapPrivate *priv = map->priv; |
542 | |
543 | //incase we get called before we have got a gps point |
544 | if (priv->gps_valid) { |
545 | int map_x0, map_y0; |
546 | int x, y; |
547 | int r = priv->ui_gps_point_inner_radius; |
548 | int r2 = priv->ui_gps_point_outer_radius; |
549 | // int lw = priv->ui_gps_track_width; |
550 | int mr = MAX(r,r2); |
551 | |
552 | map_x0 = priv->map_x - EXTRA_BORDER; |
553 | map_y0 = priv->map_y - EXTRA_BORDER; |
554 | x = lon2pixel(priv->map_zoom, priv->gps->rlon) - map_x0; |
555 | y = lat2pixel(priv->map_zoom, priv->gps->rlat) - map_y0; |
556 | #ifdef USE_CAIRO |
557 | cairo_t *cr; |
558 | cairo_pattern_t *pat; |
559 | #else |
560 | GdkColor color; |
561 | GdkGC *marker; |
562 | #endif |
563 | |
564 | #ifdef USE_CAIRO |
565 | cr = gdk_cairo_create(priv->pixmap); |
566 | |
567 | // draw transparent area |
568 | if (r2 > 0) { |
569 | cairo_set_line_width (cr, 1.5); |
570 | cairo_set_source_rgba (cr, 0.75, 0.75, 0.75, 0.4); |
571 | cairo_arc (cr, x, y, r2, 0, 2 * M_PI); |
572 | cairo_fill (cr); |
573 | // draw transparent area border |
574 | cairo_set_source_rgba (cr, 0.55, 0.55, 0.55, 0.4); |
575 | cairo_arc (cr, x, y, r2, 0, 2 * M_PI); |
576 | cairo_stroke(cr); |
577 | } |
578 | |
579 | // draw ball gradient |
580 | if (r > 0) { |
581 | pat = cairo_pattern_create_radial (x-(r/5), y-(r/5), (r/5), x, y, r); |
582 | cairo_pattern_add_color_stop_rgba (pat, 0, 1, 1, 1, 1.0); |
583 | cairo_pattern_add_color_stop_rgba (pat, 1, 0, 0, 1, 1.0); |
584 | cairo_set_source (cr, pat); |
585 | cairo_arc (cr, x, y, r, 0, 2 * M_PI); |
586 | cairo_fill (cr); |
587 | cairo_pattern_destroy (pat); |
588 | // draw ball border |
589 | cairo_set_line_width (cr, 1.0); |
590 | cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 1.0); |
591 | cairo_arc (cr, x, y, r, 0, 2 * M_PI); |
592 | cairo_stroke(cr); |
593 | } |
594 | |
595 | cairo_destroy(cr); |
596 | gtk_widget_queue_draw_area (GTK_WIDGET(map), |
597 | x-mr, |
598 | y-mr, |
599 | mr*2, |
600 | mr*2); |
601 | #else |
602 | marker = gdk_gc_new(priv->pixmap); |
603 | color.red = 5000; |
604 | color.green = 5000; |
605 | color.blue = 55000; |
606 | gdk_gc_set_rgb_fg_color(marker, &color); |
607 | gdk_gc_set_line_attributes(marker, lw, GDK_LINE_SOLID, GDK_CAP_ROUND, GDK_JOIN_ROUND); |
608 | |
609 | if (r2 > 0) { |
610 | gdk_draw_arc (priv->pixmap, |
611 | marker, |
612 | FALSE, //filled |
613 | x-r2, y-r2, // x,y |
614 | r2*2,r2*2, // width, height |
615 | 0, 360*64); // start-end angle 64th, from 3h, anti clockwise |
616 | } |
617 | if (r > 0) { |
618 | gdk_draw_arc (priv->pixmap, |
619 | marker, |
620 | TRUE, //filled |
621 | x-r, y-r, // x,y |
622 | r*2,r*2, // width, height |
623 | 0, 360*64); // start-end angle 64th, from 3h, anti clockwise |
624 | } |
625 | |
626 | g_object_unref(marker); |
627 | gtk_widget_queue_draw_area (GTK_WIDGET(map), |
628 | x-(mr+lw), |
629 | y-(mr+lw), |
630 | (mr*2)+lw+lw, |
631 | (mr*2)+lw+lw); |
632 | #endif |
633 | } |
634 | } |
635 | |
636 | /* http://cairographics.org/samples/ */ |
637 | static void |
638 | osm_gps_map_draw_balloon (OsmGpsMap *map) |
639 | { |
640 | OsmGpsMapPrivate *priv = map->priv; |
641 | |
642 | /* xyz */ |
643 | #define X 100 |
644 | #define Y 100 |
645 | #define RADIUS 20 |
646 | #define WIDTH 150 |
647 | #define HEIGHT 75 |
648 | #define TRANSPARENCY 0.7 |
649 | #define PIN_HEIGHT 20 |
650 | #define PIN_FOOT_WIDTH 20 |
651 | #define PIN_X (X + EXTRA_BORDER) |
652 | #define PIN_X0 (X + EXTRA_BORDER + RADIUS + PIN_FOOT_WIDTH) |
653 | #define PIN_X1 (X + EXTRA_BORDER + RADIUS) |
654 | #define PIN_Y (Y + EXTRA_BORDER + HEIGHT + PIN_HEIGHT) |
655 | |
656 | #ifdef USE_CAIRO |
657 | cairo_t *cr = gdk_cairo_create(priv->pixmap); |
658 | |
659 | int x0 = X + EXTRA_BORDER, y0 = Y + EXTRA_BORDER; |
660 | int x1 = x0 + WIDTH, y1 = y0 + HEIGHT; |
661 | |
662 | cairo_move_to (cr, x0, y0 + RADIUS); |
663 | cairo_curve_to (cr, x0 , y0, x0 , y0, x0 + RADIUS, y0); |
664 | cairo_line_to (cr, x1 - RADIUS, y0); |
665 | cairo_curve_to (cr, x1, y0, x1, y0, x1, y0 + RADIUS); |
666 | cairo_line_to (cr, x1 , y1 - RADIUS); |
667 | cairo_curve_to (cr, x1, y1, x1, y1, x1 - RADIUS, y1); |
668 | |
669 | /* insert pin */ |
670 | cairo_line_to (cr, PIN_X0, y1); |
671 | cairo_line_to (cr, PIN_X, PIN_Y); |
672 | cairo_line_to (cr, PIN_X1, y1); |
673 | |
674 | |
675 | cairo_line_to (cr, x0 + RADIUS, y1); |
676 | cairo_curve_to (cr, x0, y1, x0, y1, x0, y1 - RADIUS); |
677 | |
678 | cairo_close_path (cr); |
679 | cairo_set_source_rgba (cr, 1, 1, 1, TRANSPARENCY); |
680 | cairo_fill_preserve (cr); |
681 | cairo_set_source_rgba (cr, 0, 0, 0, TRANSPARENCY); |
682 | cairo_set_line_width (cr, 1); |
683 | cairo_stroke (cr); |
684 | |
685 | gtk_widget_queue_draw_area (GTK_WIDGET(map), |
686 | x0, |
687 | y0, |
688 | WIDTH, |
689 | HEIGHT + PIN_HEIGHT); |
690 | #endif |
691 | } |
692 | |
693 | static void |
694 | osm_gps_map_blit_tile(OsmGpsMap *map, GdkPixbuf *pixbuf, int offset_x, int offset_y) |
695 | { |
696 | OsmGpsMapPrivate *priv = map->priv; |
697 | |
698 | g_debug("Queing redraw @ %d,%d (w:%d h:%d)", offset_x,offset_y, TILESIZE,TILESIZE); |
699 | |
700 | /* draw pixbuf onto pixmap */ |
701 | gdk_draw_pixbuf (priv->pixmap, |
702 | priv->gc_map, |
703 | pixbuf, |
704 | 0,0, |
705 | offset_x,offset_y, |
706 | TILESIZE,TILESIZE, |
707 | GDK_RGB_DITHER_NONE, 0, 0); |
708 | } |
709 | |
710 | /* libsoup-2.2 and libsoup-2.4 use different ways to store the body data */ |
711 | #ifdef LIBSOUP22 |
712 | #define soup_message_headers_append(a,b,c) soup_message_add_header(a,b,c) |
713 | #define MSG_RESPONSE_BODY(a) ((a)->response.body) |
714 | #define MSG_RESPONSE_LEN(a) ((a)->response.length) |
715 | #define MSG_RESPONSE_LEN_FORMAT "%u" |
716 | #else |
717 | #define MSG_RESPONSE_BODY(a) ((a)->response_body->data) |
718 | #define MSG_RESPONSE_LEN(a) ((a)->response_body->length) |
719 | #define MSG_RESPONSE_LEN_FORMAT "%lld" |
720 | #endif |
721 | |
722 | #ifdef LIBSOUP22 |
723 | static void |
724 | osm_gps_map_tile_download_complete (SoupMessage *msg, gpointer user_data) |
725 | #else |
726 | static void |
727 | osm_gps_map_tile_download_complete (SoupSession *session, SoupMessage *msg, gpointer user_data) |
728 | #endif |
729 | { |
730 | FILE *file; |
731 | tile_download_t *dl = (tile_download_t *)user_data; |
732 | OsmGpsMap *map = OSM_GPS_MAP(dl->map); |
733 | OsmGpsMapPrivate *priv = map->priv; |
734 | gboolean file_saved = FALSE; |
735 | |
736 | if (SOUP_STATUS_IS_SUCCESSFUL (msg->status_code)) |
737 | { |
738 | /* save tile into cachedir if one has been specified */ |
739 | if (priv->cache_dir) |
740 | { |
741 | if (g_mkdir_with_parents(dl->folder,0700) == 0) |
742 | { |
743 | file = g_fopen(dl->filename, "wb"); |
744 | if (file != NULL) |
745 | { |
746 | fwrite (MSG_RESPONSE_BODY(msg), 1, MSG_RESPONSE_LEN(msg), file); |
747 | file_saved = TRUE; |
748 | g_debug("Wrote "MSG_RESPONSE_LEN_FORMAT" bytes to %s", MSG_RESPONSE_LEN(msg), dl->filename); |
749 | fclose (file); |
750 | |
751 | } |
752 | } |
753 | else |
754 | { |
755 | g_warning("Error creating tile download directory: %s", dl->folder); |
756 | } |
757 | } |
758 | |
759 | if (dl->redraw) |
760 | { |
761 | GdkPixbuf *pixbuf = NULL; |
762 | |
763 | /* if the file was actually stored on disk, we can simply */ |
764 | /* load and decode it from that file */ |
765 | if (priv->cache_dir) |
766 | { |
767 | if (file_saved) |
768 | { |
769 | pixbuf = gdk_pixbuf_new_from_file (dl->filename, NULL); |
770 | } |
771 | } |
772 | else |
773 | { |
774 | GdkPixbufLoader *loader; |
775 | char *extension = strrchr (dl->filename, '.'); |
776 | |
777 | /* parse file directly from memory */ |
778 | if (extension) |
779 | { |
780 | loader = gdk_pixbuf_loader_new_with_type (extension+1, NULL); |
781 | if (!gdk_pixbuf_loader_write (loader, (unsigned char*)MSG_RESPONSE_BODY(msg), MSG_RESPONSE_LEN(msg), NULL)) |
782 | { |
783 | g_warning("Error: Decoding of image failed"); |
784 | } |
785 | gdk_pixbuf_loader_close(loader, NULL); |
786 | |
787 | pixbuf = gdk_pixbuf_loader_get_pixbuf(loader); |
788 | |
789 | /* give up loader but keep the pixbuf */ |
790 | g_object_ref(pixbuf); |
791 | g_object_unref(loader); |
792 | } |
793 | else |
794 | { |
795 | g_warning("Error: Unable to determine image file format"); |
796 | } |
797 | } |
798 | |
799 | /* Store the tile into the cache */ |
800 | if (G_LIKELY (pixbuf)) |
801 | { |
802 | OsmCachedTile *tile = g_slice_new (OsmCachedTile); |
803 | tile->pixbuf = pixbuf; |
804 | tile->redraw_cycle = priv->redraw_cycle; |
805 | /* if the tile is already in the cache (it could be one |
806 | * rendered from another zoom level), it will be |
807 | * overwritten */ |
808 | g_hash_table_insert (priv->tile_cache, dl->filename, tile); |
809 | /* NULL-ify dl->filename so that it won't be freed, as |
810 | * we are using it as a key in the hash table */ |
811 | dl->filename = NULL; |
812 | } |
813 | osm_gps_map_map_redraw_idle (map); |
814 | } |
815 | g_hash_table_remove(priv->tile_queue, dl->uri); |
816 | |
817 | g_free(dl->uri); |
818 | g_free(dl->folder); |
819 | g_free(dl->filename); |
820 | g_free(dl); |
821 | } |
822 | else |
823 | { |
824 | g_warning("Error downloading tile: %d - %s", msg->status_code, msg->reason_phrase); |
825 | if (msg->status_code == SOUP_STATUS_NOT_FOUND) |
826 | { |
827 | g_hash_table_insert(priv->missing_tiles, dl->uri, NULL); |
828 | g_hash_table_remove(priv->tile_queue, dl->uri); |
829 | } |
830 | else if (msg->status_code == SOUP_STATUS_CANCELLED) |
831 | { |
832 | ;//application exiting |
833 | } |
834 | else |
835 | { |
836 | #ifdef LIBSOUP22 |
837 | soup_session_requeue_message(dl->session, msg); |
838 | #else |
839 | soup_session_requeue_message(session, msg); |
840 | #endif |
841 | return; |
842 | } |
843 | } |
844 | |
845 | |
846 | } |
847 | |
848 | static void |
849 | osm_gps_map_download_tile (OsmGpsMap *map, int zoom, int x, int y, gboolean redraw) |
850 | { |
851 | SoupMessage *msg; |
852 | OsmGpsMapPrivate *priv = map->priv; |
853 | tile_download_t *dl = g_new0(tile_download_t,1); |
854 | |
855 | //calculate the uri to download |
856 | dl->uri = replace_map_uri(map, priv->repo_uri, zoom, x, y); |
857 | |
858 | #ifdef LIBSOUP22 |
859 | dl->session = priv->soup_session; |
860 | #endif |
861 | |
862 | //check the tile has not already been queued for download, |
863 | //or has been attempted, and its missing |
864 | if (g_hash_table_lookup_extended(priv->tile_queue, dl->uri, NULL, NULL) || |
865 | g_hash_table_lookup_extended(priv->missing_tiles, dl->uri, NULL, NULL) ) |
866 | { |
867 | g_debug("Tile already downloading (or missing)"); |
868 | g_free(dl->uri); |
869 | g_free(dl); |
870 | } else { |
871 | dl->folder = g_strdup_printf("%s%c%d%c%d%c", |
872 | priv->cache_dir, G_DIR_SEPARATOR, |
873 | zoom, G_DIR_SEPARATOR, |
874 | x, G_DIR_SEPARATOR); |
875 | dl->filename = g_strdup_printf("%s%c%d%c%d%c%d.%s", |
876 | priv->cache_dir, G_DIR_SEPARATOR, |
877 | zoom, G_DIR_SEPARATOR, |
878 | x, G_DIR_SEPARATOR, |
879 | y, |
880 | priv->image_format); |
881 | dl->map = map; |
882 | dl->redraw = redraw; |
883 | |
884 | g_debug("Download tile: %d,%d z:%d\n\t%s --> %s", x, y, zoom, dl->uri, dl->filename); |
885 | |
886 | msg = soup_message_new (SOUP_METHOD_GET, dl->uri); |
887 | if (msg) { |
888 | if (priv->the_google) { |
889 | //Set maps.google.com as the referrer |
890 | g_debug("Setting Google Referrer"); |
891 | soup_message_headers_append(msg->request_headers, "Referer", "http://maps.google.com/"); |
892 | //For google satelite also set the appropriate cookie value |
893 | if (priv->uri_format & URI_HAS_Q) { |
894 | const char *cookie = g_getenv("GOOGLE_COOKIE"); |
895 | if (cookie) { |
896 | g_debug("Adding Google Cookie"); |
897 | soup_message_headers_append(msg->request_headers, "Cookie", cookie); |
898 | } |
899 | } |
900 | } |
901 | |
902 | g_hash_table_insert (priv->tile_queue, dl->uri, msg); |
903 | soup_session_queue_message (priv->soup_session, msg, osm_gps_map_tile_download_complete, dl); |
904 | } else { |
905 | g_warning("Could not create soup message"); |
906 | g_free(dl->uri); |
907 | g_free(dl->folder); |
908 | g_free(dl->filename); |
909 | g_free(dl); |
910 | } |
911 | } |
912 | } |
913 | |
914 | static GdkPixbuf * |
915 | osm_gps_map_load_cached_tile (OsmGpsMap *map, int zoom, int x, int y) |
916 | { |
917 | OsmGpsMapPrivate *priv = map->priv; |
918 | gchar *filename; |
919 | GdkPixbuf *pixbuf = NULL; |
920 | OsmCachedTile *tile; |
921 | |
922 | filename = g_strdup_printf("%s%c%d%c%d%c%d.%s", |
923 | priv->cache_dir, G_DIR_SEPARATOR, |
924 | zoom, G_DIR_SEPARATOR, |
925 | x, G_DIR_SEPARATOR, |
926 | y, |
927 | priv->image_format); |
928 | |
929 | tile = g_hash_table_lookup (priv->tile_cache, filename); |
930 | if (tile) |
931 | { |
932 | g_free (filename); |
933 | } |
934 | else |
935 | { |
936 | pixbuf = gdk_pixbuf_new_from_file (filename, NULL); |
937 | if (pixbuf) |
938 | { |
939 | tile = g_slice_new (OsmCachedTile); |
940 | tile->pixbuf = pixbuf; |
941 | g_hash_table_insert (priv->tile_cache, filename, tile); |
942 | } |
943 | } |
944 | |
945 | /* set/update the redraw_cycle timestamp on the tile */ |
946 | if (tile) |
947 | { |
948 | tile->redraw_cycle = priv->redraw_cycle; |
949 | pixbuf = g_object_ref (tile->pixbuf); |
950 | } |
951 | |
952 | return pixbuf; |
953 | } |
954 | |
955 | static GdkPixbuf * |
956 | osm_gps_map_find_bigger_tile (OsmGpsMap *map, int zoom, int x, int y, |
957 | int *zoom_found) |
958 | { |
959 | GdkPixbuf *pixbuf; |
960 | int next_zoom, next_x, next_y; |
961 | |
962 | if (zoom == 0) return NULL; |
963 | next_zoom = zoom - 1; |
964 | next_x = x / 2; |
965 | next_y = y / 2; |
966 | pixbuf = osm_gps_map_load_cached_tile (map, next_zoom, next_x, next_y); |
967 | if (pixbuf) |
968 | *zoom_found = next_zoom; |
969 | else |
970 | pixbuf = osm_gps_map_find_bigger_tile (map, next_zoom, next_x, next_y, |
971 | zoom_found); |
972 | return pixbuf; |
973 | } |
974 | |
975 | static GdkPixbuf * |
976 | osm_gps_map_render_missing_tile_upscaled (OsmGpsMap *map, int zoom, |
977 | int x, int y) |
978 | { |
979 | GdkPixbuf *pixbuf, *big, *area; |
980 | int zoom_big, zoom_diff, area_size, area_x, area_y; |
981 | int modulo; |
982 | |
983 | big = osm_gps_map_find_bigger_tile (map, zoom, x, y, &zoom_big); |
984 | if (!big) return NULL; |
985 | |
986 | g_debug ("Found bigger tile (zoom = %d, wanted = %d)", zoom_big, zoom); |
987 | |
988 | /* get a Pixbuf for the area to magnify */ |
989 | zoom_diff = zoom - zoom_big; |
990 | area_size = TILESIZE >> zoom_diff; |
991 | modulo = 1 << zoom_diff; |
992 | area_x = (x % modulo) * area_size; |
993 | area_y = (y % modulo) * area_size; |
994 | area = gdk_pixbuf_new_subpixbuf (big, area_x, area_y, |
995 | area_size, area_size); |
996 | g_object_unref (big); |
997 | pixbuf = gdk_pixbuf_scale_simple (area, TILESIZE, TILESIZE, |
998 | GDK_INTERP_NEAREST); |
999 | g_object_unref (area); |
1000 | return pixbuf; |
1001 | } |
1002 | |
1003 | static GdkPixbuf * |
1004 | osm_gps_map_render_missing_tile (OsmGpsMap *map, int zoom, int x, int y) |
1005 | { |
1006 | /* maybe TODO: render from downscaled tiles, if the following fails */ |
1007 | return osm_gps_map_render_missing_tile_upscaled (map, zoom, x, y); |
1008 | } |
1009 | |
1010 | static void |
1011 | osm_gps_map_load_tile (OsmGpsMap *map, int zoom, int x, int y, int offset_x, int offset_y) |
1012 | { |
1013 | OsmGpsMapPrivate *priv = map->priv; |
1014 | gchar *filename; |
1015 | GdkPixbuf *pixbuf; |
1016 | |
1017 | g_debug("Load tile %d,%d (%d,%d) z:%d", x, y, offset_x, offset_y, zoom); |
1018 | |
1019 | if (priv->map_source == OSM_GPS_MAP_SOURCE_NULL) { |
1020 | osm_gps_map_blit_tile(map, priv->null_tile, offset_x,offset_y); |
1021 | return; |
1022 | } |
1023 | |
1024 | filename = g_strdup_printf("%s%c%d%c%d%c%d.%s", |
1025 | priv->cache_dir, G_DIR_SEPARATOR, |
1026 | zoom, G_DIR_SEPARATOR, |
1027 | x, G_DIR_SEPARATOR, |
1028 | y, |
1029 | priv->image_format); |
1030 | |
1031 | /* try to get file from internal cache first */ |
1032 | if(!(pixbuf = osm_gps_map_load_cached_tile(map, zoom, x, y))) |
1033 | pixbuf = gdk_pixbuf_new_from_file (filename, NULL); |
1034 | |
1035 | if(pixbuf) |
1036 | { |
1037 | g_debug("Found tile %s", filename); |
1038 | osm_gps_map_blit_tile(map, pixbuf, offset_x,offset_y); |
1039 | g_object_unref (pixbuf); |
1040 | } |
1041 | else |
1042 | { |
1043 | if (priv->map_auto_download) |
1044 | osm_gps_map_download_tile(map, zoom, x, y, TRUE); |
1045 | |
1046 | /* try to render the tile by scaling cached tiles from other zoom |
1047 | * levels */ |
1048 | pixbuf = osm_gps_map_render_missing_tile (map, zoom, x, y); |
1049 | if (pixbuf) |
1050 | { |
1051 | gdk_draw_pixbuf (priv->pixmap, |
1052 | priv->gc_map, |
1053 | pixbuf, |
1054 | 0,0, |
1055 | offset_x,offset_y, |
1056 | TILESIZE,TILESIZE, |
1057 | GDK_RGB_DITHER_NONE, 0, 0); |
1058 | g_object_unref (pixbuf); |
1059 | } |
1060 | else |
1061 | { |
1062 | //prevent some artifacts when drawing not yet loaded areas. |
1063 | gdk_draw_rectangle (priv->pixmap, |
1064 | GTK_WIDGET(map)->style->white_gc, |
1065 | TRUE, offset_x, offset_y, TILESIZE, TILESIZE); |
1066 | } |
1067 | } |
1068 | g_free(filename); |
1069 | } |
1070 | |
1071 | static void |
1072 | osm_gps_map_fill_tiles_pixel (OsmGpsMap *map) |
1073 | { |
1074 | OsmGpsMapPrivate *priv = map->priv; |
1075 | int i,j, width, height, tile_x0, tile_y0, tiles_nx, tiles_ny; |
1076 | int offset_xn = 0; |
1077 | int offset_yn = 0; |
1078 | int offset_x; |
1079 | int offset_y; |
1080 | |
1081 | g_debug("Fill tiles: %d,%d z:%d", priv->map_x, priv->map_y, priv->map_zoom); |
1082 | |
1083 | offset_x = - priv->map_x % TILESIZE; |
1084 | offset_y = - priv->map_y % TILESIZE; |
1085 | if (offset_x > 0) offset_x -= TILESIZE; |
1086 | if (offset_y > 0) offset_y -= TILESIZE; |
1087 | |
1088 | offset_xn = offset_x + EXTRA_BORDER; |
1089 | offset_yn = offset_y + EXTRA_BORDER; |
1090 | |
1091 | width = GTK_WIDGET(map)->allocation.width; |
1092 | height = GTK_WIDGET(map)->allocation.height; |
1093 | |
1094 | tiles_nx = (width - offset_x) / TILESIZE + 1; |
1095 | tiles_ny = (height - offset_y) / TILESIZE + 1; |
1096 | |
1097 | tile_x0 = floor((float)priv->map_x / (float)TILESIZE); |
1098 | tile_y0 = floor((float)priv->map_y / (float)TILESIZE); |
1099 | |
1100 | //TODO: implement wrap around |
1101 | for (i=tile_x0; i<(tile_x0+tiles_nx);i++) |
1102 | { |
1103 | for (j=tile_y0; j<(tile_y0+tiles_ny); j++) |
1104 | { |
1105 | if( j<0 || i<0 || i>=exp(priv->map_zoom * M_LN2) || j>=exp(priv->map_zoom * M_LN2)) |
1106 | { |
1107 | gdk_draw_rectangle (priv->pixmap, |
1108 | GTK_WIDGET(map)->style->white_gc, |
1109 | TRUE, |
1110 | offset_xn, offset_yn, |
1111 | TILESIZE,TILESIZE); |
1112 | } |
1113 | else |
1114 | { |
1115 | osm_gps_map_load_tile(map, |
1116 | priv->map_zoom, |
1117 | i,j, |
1118 | offset_xn,offset_yn); |
1119 | } |
1120 | offset_yn += TILESIZE; |
1121 | } |
1122 | offset_xn += TILESIZE; |
1123 | offset_yn = offset_y + EXTRA_BORDER; |
1124 | } |
1125 | } |
1126 | |
1127 | static void |
1128 | osm_gps_map_print_track (OsmGpsMap *map, GSList *trackpoint_list) |
1129 | { |
1130 | OsmGpsMapPrivate *priv = map->priv; |
1131 | |
1132 | GSList *list; |
1133 | int x,y; |
1134 | int min_x = 0,min_y = 0,max_x = 0,max_y = 0; |
1135 | int lw = priv->ui_gps_track_width; |
1136 | int map_x0, map_y0; |
1137 | #ifdef USE_CAIRO |
1138 | cairo_t *cr; |
1139 | #else |
1140 | int last_x = 0, last_y = 0; |
1141 | GdkColor color; |
1142 | GdkGC *gc; |
1143 | #endif |
1144 | |
1145 | #ifdef USE_CAIRO |
1146 | cr = gdk_cairo_create(priv->pixmap); |
1147 | cairo_set_line_width (cr, lw); |
1148 | cairo_set_source_rgba (cr, 60000.0/65535.0, 0.0, 0.0, 0.6); |
1149 | cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); |
1150 | cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); |
1151 | #else |
1152 | gc = gdk_gc_new(priv->pixmap); |
1153 | color.green = 0; |
1154 | color.blue = 0; |
1155 | color.red = 60000; |
1156 | gdk_gc_set_rgb_fg_color(gc, &color); |
1157 | gdk_gc_set_line_attributes(gc, lw, GDK_LINE_SOLID, GDK_CAP_ROUND, GDK_JOIN_ROUND); |
1158 | #endif |
1159 | |
1160 | map_x0 = priv->map_x - EXTRA_BORDER; |
1161 | map_y0 = priv->map_y - EXTRA_BORDER; |
1162 | for(list = trackpoint_list; list != NULL; list = list->next) |
1163 | { |
1164 | coord_t *tp = list->data; |
1165 | |
1166 | x = lon2pixel(priv->map_zoom, tp->rlon) - map_x0; |
1167 | y = lat2pixel(priv->map_zoom, tp->rlat) - map_y0; |
1168 | |
1169 | // first time through loop |
1170 | if (list == trackpoint_list) { |
1171 | #ifdef USE_CAIRO |
1172 | cairo_move_to(cr, x, y); |
1173 | #else |
1174 | last_x = x; |
1175 | last_y = y; |
1176 | #endif |
1177 | } |
1178 | |
1179 | #ifdef USE_CAIRO |
1180 | cairo_line_to(cr, x, y); |
1181 | #else |
1182 | gdk_draw_line (priv->pixmap, gc, x, y, last_x, last_y); |
1183 | last_x = x; |
1184 | last_y = y; |
1185 | #endif |
1186 | |
1187 | max_x = MAX(x,max_x); |
1188 | min_x = MIN(x,min_x); |
1189 | max_y = MAX(y,max_y); |
1190 | min_y = MIN(y,min_y); |
1191 | } |
1192 | |
1193 | gtk_widget_queue_draw_area ( |
1194 | GTK_WIDGET(map), |
1195 | min_x - lw, |
1196 | min_y - lw, |
1197 | max_x + (lw * 2), |
1198 | max_y + (lw * 2)); |
1199 | |
1200 | #ifdef USE_CAIRO |
1201 | cairo_stroke(cr); |
1202 | cairo_destroy(cr); |
1203 | #else |
1204 | g_object_unref(gc); |
1205 | #endif |
1206 | } |
1207 | |
1208 | /* Prints the gps trip history, and any other tracks */ |
1209 | static void |
1210 | osm_gps_map_print_tracks (OsmGpsMap *map) |
1211 | { |
1212 | OsmGpsMapPrivate *priv = map->priv; |
1213 | |
1214 | if (priv->show_trip_history) |
1215 | osm_gps_map_print_track (map, priv->trip_history); |
1216 | |
1217 | if (priv->tracks) |
1218 | { |
1219 | GSList* tmp = priv->tracks; |
1220 | while (tmp != NULL) |
1221 | { |
1222 | osm_gps_map_print_track (map, tmp->data); |
1223 | tmp = g_slist_next(tmp); |
1224 | } |
1225 | } |
1226 | } |
1227 | |
1228 | static gboolean |
1229 | osm_gps_map_purge_cache_check(gpointer key, gpointer value, gpointer user) |
1230 | { |
1231 | return (((OsmCachedTile*)value)->redraw_cycle != ((OsmGpsMapPrivate*)user)->redraw_cycle); |
1232 | } |
1233 | |
1234 | static void |
1235 | osm_gps_map_purge_cache (OsmGpsMap *map) |
1236 | { |
1237 | OsmGpsMapPrivate *priv = map->priv; |
1238 | |
1239 | if (g_hash_table_size (priv->tile_cache) < priv->max_tile_cache_size) |
1240 | return; |
1241 | |
1242 | /* run through the cache, and remove the tiles which have not been used |
1243 | * during the last redraw operation */ |
1244 | g_hash_table_foreach_remove(priv->tile_cache, osm_gps_map_purge_cache_check, priv); |
1245 | } |
1246 | |
1247 | static gboolean |
1248 | osm_gps_map_map_redraw (OsmGpsMap *map) |
1249 | { |
1250 | OsmGpsMapPrivate *priv = map->priv; |
1251 | |
1252 | priv->idle_map_redraw = 0; |
1253 | |
1254 | /* the motion_notify handler uses priv->pixmap to redraw the area; if we |
1255 | * change it while we are dragging, we will end up showing it in the wrong |
1256 | * place. This could be fixed by carefully recompute the coordinates, but |
1257 | * for now it's easier just to disable redrawing the map while dragging */ |
1258 | if (priv->dragging) |
1259 | return FALSE; |
1260 | |
1261 | priv->redraw_cycle++; |
1262 | |
1263 | /* draw white background to initialise pixmap */ |
1264 | gdk_draw_rectangle ( |
1265 | priv->pixmap, |
1266 | GTK_WIDGET(map)->style->white_gc, |
1267 | TRUE, |
1268 | 0, 0, |
1269 | GTK_WIDGET(map)->allocation.width + EXTRA_BORDER * 2, |
1270 | GTK_WIDGET(map)->allocation.height + EXTRA_BORDER * 2); |
1271 | |
1272 | osm_gps_map_fill_tiles_pixel(map); |
1273 | |
1274 | osm_gps_map_print_tracks(map); |
1275 | osm_gps_map_draw_gps_point(map); |
1276 | osm_gps_map_print_images(map); |
1277 | |
1278 | osm_gps_map_draw_balloon(map); |
1279 | |
1280 | //osm_gps_map_osd_speed(map, 1.5); |
1281 | osm_gps_map_purge_cache(map); |
1282 | gtk_widget_queue_draw (GTK_WIDGET (map)); |
1283 | |
1284 | return FALSE; |
1285 | } |
1286 | |
1287 | static void |
1288 | osm_gps_map_map_redraw_idle (OsmGpsMap *map) |
1289 | { |
1290 | OsmGpsMapPrivate *priv = map->priv; |
1291 | |
1292 | if (priv->idle_map_redraw == 0) |
1293 | priv->idle_map_redraw = g_idle_add ((GSourceFunc)osm_gps_map_map_redraw, map); |
1294 | } |
1295 | |
1296 | static void |
1297 | osm_gps_map_init (OsmGpsMap *object) |
1298 | { |
1299 | OsmGpsMapPrivate *priv; |
1300 | |
1301 | priv = G_TYPE_INSTANCE_GET_PRIVATE (object, OSM_TYPE_GPS_MAP, OsmGpsMapPrivate); |
1302 | object->priv = priv; |
1303 | |
1304 | priv->pixmap = NULL; |
1305 | |
1306 | priv->trip_history = NULL; |
1307 | priv->gps = g_new0(coord_t, 1); |
1308 | priv->gps_valid = FALSE; |
1309 | |
1310 | priv->tracks = NULL; |
1311 | priv->images = NULL; |
1312 | |
1313 | priv->drag_counter = 0; |
1314 | priv->drag_mouse_dx = 0; |
1315 | priv->drag_mouse_dy = 0; |
1316 | priv->drag_start_mouse_x = 0; |
1317 | priv->drag_start_mouse_y = 0; |
1318 | |
1319 | priv->uri_format = 0; |
1320 | priv->the_google = FALSE; |
1321 | |
1322 | priv->map_source = -1; |
1323 | |
1324 | #ifndef LIBSOUP22 |
1325 | //Change naumber of concurrent connections option? |
1326 | priv->soup_session = soup_session_async_new_with_options( |
1327 | SOUP_SESSION_USER_AGENT, |
1328 | "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.11) Gecko/20071127 Firefox/2.0.0.11", |
1329 | NULL); |
1330 | #else |
1331 | /* libsoup-2.2 seems not to be able to set the user agent */ |
1332 | priv->soup_session = soup_session_async_new(); |
1333 | #endif |
1334 | |
1335 | //Hash table which maps tile d/l URIs to SoupMessage requests |
1336 | priv->tile_queue = g_hash_table_new (g_str_hash, g_str_equal); |
1337 | |
1338 | //Some mapping providers (Google) have varying degrees of tiles at multiple |
1339 | //zoom levels |
1340 | priv->missing_tiles = g_hash_table_new (g_str_hash, g_str_equal); |
1341 | |
1342 | /* memory cache for most recently used tiles */ |
1343 | priv->tile_cache = g_hash_table_new_full (g_str_hash, g_str_equal, |
1344 | g_free, (GDestroyNotify)cached_tile_free); |
1345 | priv->max_tile_cache_size = 20; |
1346 | |
1347 | gtk_widget_add_events (GTK_WIDGET (object), |
1348 | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | |
1349 | GDK_POINTER_MOTION_MASK | |
1350 | GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK); |
1351 | GTK_WIDGET_SET_FLAGS (object, GTK_CAN_FOCUS); |
1352 | |
1353 | g_log_set_handler (G_LOG_DOMAIN, G_LOG_LEVEL_MASK, my_log_handler, NULL); |
1354 | } |
1355 | |
1356 | #ifndef G_CHECKSUM_MD5 |
1357 | /* simple hash algorithm hack if md5 is not present */ |
1358 | static char *simple_hash(char *str) { |
1359 | union { |
1360 | char str[4]; |
1361 | gulong val; |
1362 | } hash = { .val = 0x55555555 }; |
1363 | |
1364 | while(*str) { |
1365 | hash.str[(int)str & 3] ^= *str; |
1366 | str++; |
1367 | } |
1368 | return g_strdup_printf("%08lX", hash.val); |
1369 | } |
1370 | #endif |
1371 | |
1372 | static GObject * |
1373 | osm_gps_map_constructor (GType gtype, guint n_properties, GObjectConstructParam *properties) |
1374 | { |
1375 | GObject *object; |
1376 | OsmGpsMapPrivate *priv; |
1377 | OsmGpsMap *map; |
1378 | const char *uri; |
1379 | |
1380 | //Always chain up to the parent constructor |
1381 | object = G_OBJECT_CLASS(osm_gps_map_parent_class)->constructor(gtype, n_properties, properties); |
1382 | map = OSM_GPS_MAP(object); |
1383 | priv = OSM_GPS_MAP_PRIVATE(object); |
1384 | |
1385 | //user can specify a map source ID, or a repo URI as the map source |
1386 | uri = osm_gps_map_source_get_repo_uri(OSM_GPS_MAP_SOURCE_NULL); |
1387 | if ( (priv->map_source == 0) || (strcmp(priv->repo_uri, uri) == 0) ) { |
1388 | g_debug("Using null source"); |
1389 | priv->map_source = OSM_GPS_MAP_SOURCE_NULL; |
1390 | |
1391 | priv->null_tile = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, 256, 256); |
1392 | gdk_pixbuf_fill(priv->null_tile, 0xcccccc00); |
1393 | } |
1394 | else if (priv->map_source >= 0) { |
1395 | //check if the source given is valid |
1396 | uri = osm_gps_map_source_get_repo_uri(priv->map_source); |
1397 | if (uri) { |
1398 | g_debug("Setting map source from ID"); |
1399 | g_free(priv->repo_uri); |
1400 | |
1401 | priv->repo_uri = g_strdup(uri); |
1402 | priv->image_format = g_strdup( |
1403 | osm_gps_map_source_get_image_format(priv->map_source)); |
1404 | priv->max_zoom = osm_gps_map_source_get_max_zoom(priv->map_source); |
1405 | priv->min_zoom = osm_gps_map_source_get_min_zoom(priv->map_source); |
1406 | } |
1407 | } |
1408 | |
1409 | if (!priv->cache_dir_is_full_path) { |
1410 | #ifdef G_CHECKSUM_MD5 |
1411 | char *md5 = g_compute_checksum_for_string (G_CHECKSUM_MD5, priv->repo_uri, -1); |
1412 | #else |
1413 | char *md5 = simple_hash(priv->repo_uri); |
1414 | #endif |
1415 | |
1416 | if (priv->cache_dir) { |
1417 | char *old = priv->cache_dir; |
1418 | //the new cachedir is the given cache dir + the md5 of the repo_uri |
1419 | priv->cache_dir = g_strdup_printf("%s%c%s", old, G_DIR_SEPARATOR, md5); |
1420 | g_debug("Adjusting cache dir %s -> %s", old, priv->cache_dir); |
1421 | g_free(old); |
1422 | } else { |
1423 | //the new cachedir is the current dir + the md5 of the repo_uri |
1424 | priv->cache_dir = g_strdup(md5); |
1425 | } |
1426 | |
1427 | g_free(md5); |
1428 | } |
1429 | |
1430 | inspect_map_uri(map); |
1431 | |
1432 | return object; |
1433 | } |
1434 | |
1435 | static void |
1436 | osm_gps_map_dispose (GObject *object) |
1437 | { |
1438 | OsmGpsMap *map = OSM_GPS_MAP(object); |
1439 | OsmGpsMapPrivate *priv = map->priv; |
1440 | |
1441 | if (priv->is_disposed) |
1442 | return; |
1443 | |
1444 | priv->is_disposed = TRUE; |
1445 | |
1446 | soup_session_abort(priv->soup_session); |
1447 | g_object_unref(priv->soup_session); |
1448 | |
1449 | g_hash_table_destroy(priv->tile_queue); |
1450 | g_hash_table_destroy(priv->missing_tiles); |
1451 | g_hash_table_destroy(priv->tile_cache); |
1452 | |
1453 | osm_gps_map_free_images(map); |
1454 | |
1455 | if(priv->pixmap) |
1456 | g_object_unref (priv->pixmap); |
1457 | |
1458 | if (priv->null_tile) |
1459 | g_object_unref (priv->null_tile); |
1460 | |
1461 | if(priv->gc_map) |
1462 | g_object_unref(priv->gc_map); |
1463 | |
1464 | if (priv->idle_map_redraw != 0) |
1465 | g_source_remove (priv->idle_map_redraw); |
1466 | |
1467 | G_OBJECT_CLASS (osm_gps_map_parent_class)->dispose (object); |
1468 | } |
1469 | |
1470 | static void |
1471 | osm_gps_map_finalize (GObject *object) |
1472 | { |
1473 | OsmGpsMap *map = OSM_GPS_MAP(object); |
1474 | OsmGpsMapPrivate *priv = map->priv; |
1475 | |
1476 | g_free(priv->cache_dir); |
1477 | g_free(priv->repo_uri); |
1478 | g_free(priv->image_format); |
1479 | |
1480 | osm_gps_map_free_trip(map); |
1481 | osm_gps_map_free_tracks(map); |
1482 | |
1483 | G_OBJECT_CLASS (osm_gps_map_parent_class)->finalize (object); |
1484 | } |
1485 | |
1486 | static void |
1487 | osm_gps_map_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) |
1488 | { |
1489 | g_return_if_fail (OSM_IS_GPS_MAP (object)); |
1490 | OsmGpsMap *map = OSM_GPS_MAP(object); |
1491 | OsmGpsMapPrivate *priv = map->priv; |
1492 | |
1493 | switch (prop_id) |
1494 | { |
1495 | case PROP_AUTO_CENTER: |
1496 | priv->map_auto_center = g_value_get_boolean (value); |
1497 | break; |
1498 | case PROP_RECORD_TRIP_HISTORY: |
1499 | priv->record_trip_history = g_value_get_boolean (value); |
1500 | break; |
1501 | case PROP_SHOW_TRIP_HISTORY: |
1502 | priv->show_trip_history = g_value_get_boolean (value); |
1503 | break; |
1504 | case PROP_AUTO_DOWNLOAD: |
1505 | priv->map_auto_download = g_value_get_boolean (value); |
1506 | break; |
1507 | case PROP_REPO_URI: |
1508 | priv->repo_uri = g_value_dup_string (value); |
1509 | break; |
1510 | case PROP_PROXY_URI: |
1511 | if ( g_value_get_string(value) ) { |
1512 | priv->proxy_uri = g_value_dup_string (value); |
1513 | g_debug("Setting proxy server: %s", priv->proxy_uri); |
1514 | |
1515 | #ifndef LIBSOUP22 |
1516 | GValue val = {0}; |
1517 | |
1518 | SoupURI* uri = soup_uri_new(priv->proxy_uri); |
1519 | g_value_init(&val, SOUP_TYPE_URI); |
1520 | g_value_take_boxed(&val, uri); |
1521 | |
1522 | g_object_set_property(G_OBJECT(priv->soup_session),SOUP_SESSION_PROXY_URI,&val); |
1523 | #else |
1524 | SoupUri* uri = soup_uri_new(priv->proxy_uri); |
1525 | g_object_set(G_OBJECT(priv->soup_session), SOUP_SESSION_PROXY_URI, uri, NULL); |
1526 | #endif |
1527 | } else |
1528 | priv->proxy_uri = NULL; |
1529 | |
1530 | break; |
1531 | case PROP_TILE_CACHE_DIR: |
1532 | if ( g_value_get_string(value) ) |
1533 | priv->cache_dir = g_value_dup_string (value); |
1534 | break; |
1535 | case PROP_TILE_CACHE_DIR_IS_FULL_PATH: |
1536 | priv->cache_dir_is_full_path = g_value_get_boolean (value); |
1537 | break; |
1538 | case PROP_ZOOM: |
1539 | priv->map_zoom = g_value_get_int (value); |
1540 | break; |
1541 | case PROP_MAX_ZOOM: |
1542 | priv->max_zoom = g_value_get_int (value); |
1543 | break; |
1544 | case PROP_MIN_ZOOM: |
1545 | priv->min_zoom = g_value_get_int (value); |
1546 | break; |
1547 | case PROP_MAP_X: |
1548 | priv->map_x = g_value_get_int (value); |
1549 | priv->center_coord_set = FALSE; |
1550 | break; |
1551 | case PROP_MAP_Y: |
1552 | priv->map_y = g_value_get_int (value); |
1553 | priv->center_coord_set = FALSE; |
1554 | break; |
1555 | case PROP_GPS_TRACK_WIDTH: |
1556 | priv->ui_gps_track_width = g_value_get_int (value); |
1557 | break; |
1558 | case PROP_GPS_POINT_R1: |
1559 | priv->ui_gps_point_inner_radius = g_value_get_int (value); |
1560 | break; |
1561 | case PROP_GPS_POINT_R2: |
1562 | priv->ui_gps_point_outer_radius = g_value_get_int (value); |
1563 | break; |
1564 | case PROP_MAP_SOURCE: |
1565 | priv->map_source = g_value_get_int (value); |
1566 | break; |
1567 | case PROP_IMAGE_FORMAT: |
1568 | priv->image_format = g_value_dup_string (value); |
1569 | break; |
1570 | default: |
1571 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
1572 | break; |
1573 | } |
1574 | } |
1575 | |
1576 | static void |
1577 | osm_gps_map_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) |
1578 | { |
1579 | g_return_if_fail (OSM_IS_GPS_MAP (object)); |
1580 | float lat,lon; |
1581 | OsmGpsMap *map = OSM_GPS_MAP(object); |
1582 | OsmGpsMapPrivate *priv = map->priv; |
1583 | |
1584 | switch (prop_id) |
1585 | { |
1586 | case PROP_AUTO_CENTER: |
1587 | g_value_set_boolean(value, priv->map_auto_center); |
1588 | break; |
1589 | case PROP_RECORD_TRIP_HISTORY: |
1590 | g_value_set_boolean(value, priv->record_trip_history); |
1591 | break; |
1592 | case PROP_SHOW_TRIP_HISTORY: |
1593 | g_value_set_boolean(value, priv->show_trip_history); |
1594 | break; |
1595 | case PROP_AUTO_DOWNLOAD: |
1596 | g_value_set_boolean(value, priv->map_auto_download); |
1597 | break; |
1598 | case PROP_REPO_URI: |
1599 | g_value_set_string(value, priv->repo_uri); |
1600 | break; |
1601 | case PROP_PROXY_URI: |
1602 | g_value_set_string(value, priv->proxy_uri); |
1603 | break; |
1604 | case PROP_TILE_CACHE_DIR: |
1605 | g_value_set_string(value, priv->cache_dir); |
1606 | break; |
1607 | case PROP_TILE_CACHE_DIR_IS_FULL_PATH: |
1608 | g_value_set_boolean(value, priv->cache_dir_is_full_path); |
1609 | break; |
1610 | case PROP_ZOOM: |
1611 | g_value_set_int(value, priv->map_zoom); |
1612 | break; |
1613 | case PROP_MAX_ZOOM: |
1614 | g_value_set_int(value, priv->max_zoom); |
1615 | break; |
1616 | case PROP_MIN_ZOOM: |
1617 | g_value_set_int(value, priv->min_zoom); |
1618 | break; |
1619 | case PROP_LATITUDE: |
1620 | lat = pixel2lat(priv->map_zoom, |
1621 | priv->map_y + (GTK_WIDGET(map)->allocation.height / 2)); |
1622 | g_value_set_float(value, rad2deg(lat)); |
1623 | break; |
1624 | case PROP_LONGITUDE: |
1625 | lon = pixel2lon(priv->map_zoom, |
1626 | priv->map_x + (GTK_WIDGET(map)->allocation.width / 2)); |
1627 | g_value_set_float(value, rad2deg(lon)); |
1628 | break; |
1629 | case PROP_MAP_X: |
1630 | g_value_set_int(value, priv->map_x); |
1631 | break; |
1632 | case PROP_MAP_Y: |
1633 | g_value_set_int(value, priv->map_y); |
1634 | break; |
1635 | case PROP_TILES_QUEUED: |
1636 | g_value_set_int(value, g_hash_table_size(priv->tile_queue)); |
1637 | break; |
1638 | case PROP_GPS_TRACK_WIDTH: |
1639 | g_value_set_int(value, priv->ui_gps_track_width); |
1640 | break; |
1641 | case PROP_GPS_POINT_R1: |
1642 | g_value_set_int(value, priv->ui_gps_point_inner_radius); |
1643 | break; |
1644 | case PROP_GPS_POINT_R2: |
1645 | g_value_set_int(value, priv->ui_gps_point_outer_radius); |
1646 | break; |
1647 | case PROP_MAP_SOURCE: |
1648 | g_value_set_int(value, priv->map_source); |
1649 | break; |
1650 | case PROP_IMAGE_FORMAT: |
1651 | g_value_set_string(value, priv->image_format); |
1652 | break; |
1653 | default: |
1654 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
1655 | break; |
1656 | } |
1657 | } |
1658 | |
1659 | static gboolean |
1660 | osm_gps_map_scroll_event (GtkWidget *widget, GdkEventScroll *event) |
1661 | { |
1662 | OsmGpsMap *map = OSM_GPS_MAP(widget); |
1663 | OsmGpsMapPrivate *priv = map->priv; |
1664 | |
1665 | if (event->direction == GDK_SCROLL_UP) |
1666 | { |
1667 | osm_gps_map_set_zoom(map, priv->map_zoom+1); |
1668 | } |
1669 | else |
1670 | { |
1671 | osm_gps_map_set_zoom(map, priv->map_zoom-1); |
1672 | } |
1673 | |
1674 | return FALSE; |
1675 | } |
1676 | |
1677 | static gboolean |
1678 | osm_gps_map_button_press (GtkWidget *widget, GdkEventButton *event) |
1679 | { |
1680 | OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget); |
1681 | |
1682 | priv->drag_counter = 0; |
1683 | priv->drag_start_mouse_x = (int) event->x; |
1684 | priv->drag_start_mouse_y = (int) event->y; |
1685 | priv->drag_start_map_x = priv->map_x; |
1686 | priv->drag_start_map_y = priv->map_y; |
1687 | |
1688 | return FALSE; |
1689 | } |
1690 | |
1691 | static gboolean |
1692 | osm_gps_map_button_release (GtkWidget *widget, GdkEventButton *event) |
1693 | { |
1694 | OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget); |
1695 | |
1696 | if (priv->dragging) |
1697 | { |
1698 | priv->dragging = FALSE; |
1699 | |
1700 | priv->map_x = priv->drag_start_map_x; |
1701 | priv->map_y = priv->drag_start_map_y; |
1702 | |
1703 | priv->map_x += (priv->drag_start_mouse_x - (int) event->x); |
1704 | priv->map_y += (priv->drag_start_mouse_y - (int) event->y); |
1705 | |
1706 | priv->center_coord_set = FALSE; |
1707 | |
1708 | osm_gps_map_map_redraw_idle(OSM_GPS_MAP(widget)); |
1709 | } |
1710 | |
1711 | priv->drag_mouse_dx = 0; |
1712 | priv->drag_mouse_dy = 0; |
1713 | priv->drag_counter = 0; |
1714 | |
1715 | return FALSE; |
1716 | } |
1717 | |
1718 | static gboolean |
1719 | osm_gps_map_motion_notify (GtkWidget *widget, GdkEventMotion *event) |
1720 | { |
1721 | int x, y; |
1722 | GdkModifierType state; |
1723 | OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget); |
1724 | |
1725 | if (event->is_hint) |
1726 | gdk_window_get_pointer (event->window, &x, &y, &state); |
1727 | else |
1728 | { |
1729 | x = event->x; |
1730 | y = event->y; |
1731 | state = event->state; |
1732 | } |
1733 | |
1734 | // are we being dragged |
1735 | if (!(state & GDK_BUTTON1_MASK)) |
1736 | return FALSE; |
1737 | |
1738 | priv->drag_counter++; |
1739 | |
1740 | // we havent dragged more than 6 pixels |
1741 | if (priv->drag_counter < 6) |
1742 | return FALSE; |
1743 | |
1744 | priv->dragging = TRUE; |
1745 | |
1746 | if (priv->map_auto_center) |
1747 | g_object_set(G_OBJECT(widget), "auto-center", FALSE, NULL); |
1748 | |
1749 | priv->drag_mouse_dx = x - priv->drag_start_mouse_x; |
1750 | priv->drag_mouse_dy = y - priv->drag_start_mouse_y; |
1751 | |
1752 | gdk_draw_drawable ( |
1753 | widget->window, |
1754 | widget->style->fg_gc[GTK_WIDGET_STATE (widget)], |
1755 | priv->pixmap, |
1756 | 0,0, |
1757 | priv->drag_mouse_dx - EXTRA_BORDER, priv->drag_mouse_dy - EXTRA_BORDER, |
1758 | -1,-1); |
1759 | |
1760 | //Paint white outside of the map if dragging. Its less |
1761 | //ugly than painting the corrupted map |
1762 | if(priv->drag_mouse_dx>EXTRA_BORDER) { |
1763 | gdk_draw_rectangle ( |
1764 | widget->window, |
1765 | widget->style->white_gc, |
1766 | TRUE, |
1767 | 0, 0, |
1768 | priv->drag_mouse_dx - EXTRA_BORDER, |
1769 | widget->allocation.height); |
1770 | } |
1771 | else if (-priv->drag_mouse_dx > EXTRA_BORDER) |
1772 | { |
1773 | gdk_draw_rectangle ( |
1774 | widget->window, |
1775 | widget->style->white_gc, |
1776 | TRUE, |
1777 | priv->drag_mouse_dx + widget->allocation.width + EXTRA_BORDER, 0, |
1778 | -priv->drag_mouse_dx - EXTRA_BORDER, |
1779 | widget->allocation.height); |
1780 | } |
1781 | |
1782 | if (priv->drag_mouse_dy>EXTRA_BORDER) { |
1783 | gdk_draw_rectangle ( |
1784 | widget->window, |
1785 | widget->style->white_gc, |
1786 | TRUE, |
1787 | 0, 0, |
1788 | widget->allocation.width, |
1789 | priv->drag_mouse_dy - EXTRA_BORDER); |
1790 | } |
1791 | else if (-priv->drag_mouse_dy > EXTRA_BORDER) |
1792 | { |
1793 | gdk_draw_rectangle ( |
1794 | widget->window, |
1795 | widget->style->white_gc, |
1796 | TRUE, |
1797 | 0, priv->drag_mouse_dy + widget->allocation.height + EXTRA_BORDER, |
1798 | widget->allocation.width, |
1799 | -priv->drag_mouse_dy - EXTRA_BORDER); |
1800 | } |
1801 | |
1802 | return FALSE; |
1803 | } |
1804 | |
1805 | static gboolean |
1806 | osm_gps_map_configure (GtkWidget *widget, GdkEventConfigure *event) |
1807 | { |
1808 | OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget); |
1809 | |
1810 | /* create pixmap */ |
1811 | if (priv->pixmap) |
1812 | g_object_unref (priv->pixmap); |
1813 | |
1814 | priv->pixmap = gdk_pixmap_new ( |
1815 | widget->window, |
1816 | widget->allocation.width + EXTRA_BORDER * 2, |
1817 | widget->allocation.height + EXTRA_BORDER * 2, |
1818 | -1); |
1819 | |
1820 | /* and gc, used for clipping (I think......) */ |
1821 | if(priv->gc_map) |
1822 | g_object_unref(priv->gc_map); |
1823 | |
1824 | priv->gc_map = gdk_gc_new(priv->pixmap); |
1825 | |
1826 | osm_gps_map_map_redraw(OSM_GPS_MAP(widget)); |
1827 | |
1828 | return FALSE; |
1829 | } |
1830 | |
1831 | static gboolean |
1832 | osm_gps_map_expose (GtkWidget *widget, GdkEventExpose *event) |
1833 | { |
1834 | OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget); |
1835 | |
1836 | gdk_draw_drawable ( |
1837 | widget->window, |
1838 | widget->style->fg_gc[GTK_WIDGET_STATE (widget)], |
1839 | priv->pixmap, |
1840 | event->area.x + EXTRA_BORDER, event->area.y + EXTRA_BORDER, |
1841 | event->area.x, event->area.y, |
1842 | event->area.width, event->area.height); |
1843 | |
1844 | return FALSE; |
1845 | } |
1846 | |
1847 | static void |
1848 | osm_gps_map_class_init (OsmGpsMapClass *klass) |
1849 | { |
1850 | GObjectClass* object_class = G_OBJECT_CLASS (klass); |
1851 | GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); |
1852 | |
1853 | g_type_class_add_private (klass, sizeof (OsmGpsMapPrivate)); |
1854 | |
1855 | object_class->dispose = osm_gps_map_dispose; |
1856 | object_class->finalize = osm_gps_map_finalize; |
1857 | object_class->constructor = osm_gps_map_constructor; |
1858 | object_class->set_property = osm_gps_map_set_property; |
1859 | object_class->get_property = osm_gps_map_get_property; |
1860 | |
1861 | widget_class->expose_event = osm_gps_map_expose; |
1862 | widget_class->configure_event = osm_gps_map_configure; |
1863 | widget_class->button_press_event = osm_gps_map_button_press; |
1864 | widget_class->button_release_event = osm_gps_map_button_release; |
1865 | widget_class->motion_notify_event = osm_gps_map_motion_notify; |
1866 | widget_class->scroll_event = osm_gps_map_scroll_event; |
1867 | |
1868 | g_object_class_install_property (object_class, |
1869 | PROP_AUTO_CENTER, |
1870 | g_param_spec_boolean ("auto-center", |
1871 | "auto center", |
1872 | "map auto center", |
1873 | TRUE, |
1874 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT)); |
1875 | |
1876 | g_object_class_install_property (object_class, |
1877 | PROP_RECORD_TRIP_HISTORY, |
1878 | g_param_spec_boolean ("record-trip-history", |
1879 | "record trip history", |
1880 | "should all gps points be recorded in a trip history", |
1881 | TRUE, |
1882 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT)); |
1883 | |
1884 | g_object_class_install_property (object_class, |
1885 | PROP_SHOW_TRIP_HISTORY, |
1886 | g_param_spec_boolean ("show-trip-history", |
1887 | "show trip history", |
1888 | "should the recorded trip history be shown on the map", |
1889 | TRUE, |
1890 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT)); |
1891 | |
1892 | g_object_class_install_property (object_class, |
1893 | PROP_AUTO_DOWNLOAD, |
1894 | g_param_spec_boolean ("auto-download", |
1895 | "auto download", |
1896 | "map auto download", |
1897 | TRUE, |
1898 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT)); |
1899 | |
1900 | g_object_class_install_property (object_class, |
1901 | PROP_REPO_URI, |
1902 | g_param_spec_string ("repo-uri", |
1903 | "repo uri", |
1904 | "map source tile repository uri", |
1905 | OSM_REPO_URI, |
1906 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); |
1907 | |
1908 | g_object_class_install_property (object_class, |
1909 | PROP_PROXY_URI, |
1910 | g_param_spec_string ("proxy-uri", |
1911 | "proxy uri", |
1912 | "http proxy uri on NULL", |
1913 | NULL, |
1914 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); |
1915 | |
1916 | g_object_class_install_property (object_class, |
1917 | PROP_TILE_CACHE_DIR, |
1918 | g_param_spec_string ("tile-cache", |
1919 | "tile cache", |
1920 | "osm local tile cache dir", |
1921 | NULL, |
1922 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); |
1923 | |
1924 | g_object_class_install_property (object_class, |
1925 | PROP_TILE_CACHE_DIR_IS_FULL_PATH, |
1926 | g_param_spec_boolean ("tile-cache-is-full-path", |
1927 | "tile cache is full path", |
1928 | "if true, the path passed to tile-cache is interpreted as the full cache path", |
1929 | FALSE, |
1930 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); |
1931 | |
1932 | g_object_class_install_property (object_class, |
1933 | PROP_ZOOM, |
1934 | g_param_spec_int ("zoom", |
1935 | "zoom", |
1936 | "zoom level", |
1937 | MIN_ZOOM, /* minimum property value */ |
1938 | MAX_ZOOM, /* maximum property value */ |
1939 | 3, |
1940 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); |
1941 | |
1942 | g_object_class_install_property (object_class, |
1943 | PROP_MAX_ZOOM, |
1944 | g_param_spec_int ("max-zoom", |
1945 | "max zoom", |
1946 | "maximum zoom level", |
1947 | MIN_ZOOM, /* minimum property value */ |
1948 | MAX_ZOOM, /* maximum property value */ |
1949 | OSM_MAX_ZOOM, |
1950 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); |
1951 | |
1952 | g_object_class_install_property (object_class, |
1953 | PROP_MIN_ZOOM, |
1954 | g_param_spec_int ("min-zoom", |
1955 | "min zoom", |
1956 | "minimum zoom level", |
1957 | MIN_ZOOM, /* minimum property value */ |
1958 | MAX_ZOOM, /* maximum property value */ |
1959 | OSM_MIN_ZOOM, |
1960 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); |
1961 | |
1962 | g_object_class_install_property (object_class, |
1963 | PROP_LATITUDE, |
1964 | g_param_spec_float ("latitude", |
1965 | "latitude", |
1966 | "latitude in degrees", |
1967 | -90.0, /* minimum property value */ |
1968 | 90.0, /* maximum property value */ |
1969 | 0, |
1970 | G_PARAM_READABLE)); |
1971 | |
1972 | g_object_class_install_property (object_class, |
1973 | PROP_LONGITUDE, |
1974 | g_param_spec_float ("longitude", |
1975 | "longitude", |
1976 | "longitude in degrees", |
1977 | -180.0, /* minimum property value */ |
1978 | 180.0, /* maximum property value */ |
1979 | 0, |
1980 | G_PARAM_READABLE)); |
1981 | |
1982 | g_object_class_install_property (object_class, |
1983 | PROP_MAP_X, |
1984 | g_param_spec_int ("map-x", |
1985 | "map-x", |
1986 | "initial map x location", |
1987 | G_MININT, /* minimum property value */ |
1988 | G_MAXINT, /* maximum property value */ |
1989 | 890, |
1990 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); |
1991 | |
1992 | g_object_class_install_property (object_class, |
1993 | PROP_MAP_Y, |
1994 | g_param_spec_int ("map-y", |
1995 | "map-y", |
1996 | "initial map y location", |
1997 | G_MININT, /* minimum property value */ |
1998 | G_MAXINT, /* maximum property value */ |
1999 | 515, |
2000 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); |
2001 | |
2002 | g_object_class_install_property (object_class, |
2003 | PROP_TILES_QUEUED, |
2004 | g_param_spec_int ("tiles-queued", |
2005 | "tiles-queued", |
2006 | "number of tiles currently waiting to download", |
2007 | G_MININT, /* minimum property value */ |
2008 | G_MAXINT, /* maximum property value */ |
2009 | 0, |
2010 | G_PARAM_READABLE)); |
2011 | |
2012 | g_object_class_install_property (object_class, |
2013 | PROP_GPS_TRACK_WIDTH, |
2014 | g_param_spec_int ("gps-track-width", |
2015 | "gps-track-width", |
2016 | "width of the lines drawn for the gps track", |
2017 | 1, /* minimum property value */ |
2018 | G_MAXINT, /* maximum property value */ |
2019 | 4, |
2020 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT)); |
2021 | |
2022 | g_object_class_install_property (object_class, |
2023 | PROP_GPS_POINT_R1, |
2024 | g_param_spec_int ("gps-track-point-radius", |
2025 | "gps-track-point-radius", |
2026 | "radius of the gps point inner circle", |
2027 | 0, /* minimum property value */ |
2028 | G_MAXINT, /* maximum property value */ |
2029 | 5, |
2030 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT)); |
2031 | |
2032 | g_object_class_install_property (object_class, |
2033 | PROP_GPS_POINT_R2, |
2034 | g_param_spec_int ("gps-track-highlight-radius", |
2035 | "gps-track-highlight-radius", |
2036 | "radius of the gps point highlight circle", |
2037 | 0, /* minimum property value */ |
2038 | G_MAXINT, /* maximum property value */ |
2039 | 20, |
2040 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT)); |
2041 | |
2042 | g_object_class_install_property (object_class, |
2043 | PROP_MAP_SOURCE, |
2044 | g_param_spec_int ("map-source", |
2045 | "map source", |
2046 | "map source ID", |
2047 | -1, /* minimum property value */ |
2048 | G_MAXINT, /* maximum property value */ |
2049 | -1, |
2050 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); |
2051 | |
2052 | g_object_class_install_property (object_class, |
2053 | PROP_IMAGE_FORMAT, |
2054 | g_param_spec_string ("image-format", |
2055 | "image format", |
2056 | "map source tile repository image format (jpg, png)", |
2057 | OSM_IMAGE_FORMAT, |
2058 | G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); |
2059 | } |
2060 | |
2061 | const char* |
2062 | osm_gps_map_source_get_friendly_name(OsmGpsMapSource_t source) |
2063 | { |
2064 | switch(source) |
2065 | { |
2066 | case OSM_GPS_MAP_SOURCE_NULL: |
2067 | return "None"; |
2068 | case OSM_GPS_MAP_SOURCE_OPENSTREETMAP: |
2069 | return "OpenStreetMap"; |
2070 | case OSM_GPS_MAP_SOURCE_OPENSTREETMAP_RENDERER: |
2071 | return "OpenStreetMap Renderer"; |
2072 | case OSM_GPS_MAP_SOURCE_OPENAERIALMAP: |
2073 | return "OpenAerialMap"; |
2074 | case OSM_GPS_MAP_SOURCE_MAPS_FOR_FREE: |
2075 | return "Maps-For-Free"; |
2076 | case OSM_GPS_MAP_SOURCE_GOOGLE_STREET: |
2077 | return "Google Maps"; |
2078 | case OSM_GPS_MAP_SOURCE_GOOGLE_SATELLITE: |
2079 | return "Google Satellite"; |
2080 | case OSM_GPS_MAP_SOURCE_GOOGLE_HYBRID: |
2081 | return "Google Hybrid"; |
2082 | case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_STREET: |
2083 | return "Virtual Earth"; |
2084 | case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_SATELLITE: |
2085 | return "Virtual Earth Satellite"; |
2086 | case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_HYBRID: |
2087 | return "Virtual Earth Hybrid"; |
2088 | case OSM_GPS_MAP_SOURCE_YAHOO_STREET: |
2089 | return "Yahoo Maps"; |
2090 | case OSM_GPS_MAP_SOURCE_YAHOO_SATELLITE: |
2091 | return "Yahoo Satellite"; |
2092 | case OSM_GPS_MAP_SOURCE_YAHOO_HYBRID: |
2093 | return "Yahoo Hybrid"; |
2094 | default: |
2095 | return NULL; |
2096 | } |
2097 | return NULL; |
2098 | } |
2099 | |
2100 | //http://www.internettablettalk.com/forums/showthread.php?t=5209 |
2101 | //https://garage.maemo.org/plugins/scmsvn/viewcvs.php/trunk/src/maps.c?root=maemo-mapper&view=markup |
2102 | //http://www.ponies.me.uk/maps/GoogleTileUtils.java |
2103 | //http://www.mgmaps.com/cache/MapTileCacher.perl |
2104 | const char* |
2105 | osm_gps_map_source_get_repo_uri(OsmGpsMapSource_t source) |
2106 | { |
2107 | switch(source) |
2108 | { |
2109 | case OSM_GPS_MAP_SOURCE_NULL: |
2110 | return "none://"; |
2111 | case OSM_GPS_MAP_SOURCE_OPENSTREETMAP: |
2112 | return OSM_REPO_URI; |
2113 | case OSM_GPS_MAP_SOURCE_OPENSTREETMAP_RENDERER: |
2114 | return "http://tah.openstreetmap.org/Tiles/tile/#Z/#X/#Y.png"; |
2115 | case OSM_GPS_MAP_SOURCE_OPENAERIALMAP: |
2116 | return "http://tile.openaerialmap.org/tiles/1.0.0/openaerialmap-900913/#Z/#X/#Y.jpg"; |
2117 | case OSM_GPS_MAP_SOURCE_MAPS_FOR_FREE: |
2118 | return "http://maps-for-free.com/layer/relief/z#Z/row#Y/#Z_#X-#Y.jpg"; |
2119 | case OSM_GPS_MAP_SOURCE_GOOGLE_STREET: |
2120 | return "http://mt#R.google.com/vt/v=w2.97&x=#X&y=#Y&z=#Z"; |
2121 | case OSM_GPS_MAP_SOURCE_GOOGLE_SATELLITE: |
2122 | return "http://khm#R.google.com/kh?n=404&v=3&t=#Q"; |
2123 | case OSM_GPS_MAP_SOURCE_GOOGLE_HYBRID: |
2124 | return NULL; /* No longer working "http://mt#R.google.com/mt?n=404&v=w2t.99&x=#X&y=#Y&zoom=#S" */ |
2125 | case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_STREET: |
2126 | return "http://a#R.ortho.tiles.virtualearth.net/tiles/r#W.jpeg?g=50"; |
2127 | case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_SATELLITE: |
2128 | return "http://a#R.ortho.tiles.virtualearth.net/tiles/a#W.jpeg?g=50"; |
2129 | case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_HYBRID: |
2130 | return "http://a#R.ortho.tiles.virtualearth.net/tiles/h#W.jpeg?g=50"; |
2131 | case OSM_GPS_MAP_SOURCE_YAHOO_STREET: |
2132 | case OSM_GPS_MAP_SOURCE_YAHOO_SATELLITE: |
2133 | case OSM_GPS_MAP_SOURCE_YAHOO_HYBRID: |
2134 | /* TODO: Implement signed Y, aka U |
2135 | * http://us.maps3.yimg.com/aerial.maps.yimg.com/ximg?v=1.7&t=a&s=256&x=%d&y=%-d&z=%d |
2136 | * x = tilex, |
2137 | * y = (1 << (MAX_ZOOM - zoom)) - tiley - 1, |
2138 | * z = zoom - (MAX_ZOOM - 17)); |
2139 | */ |
2140 | return NULL; |
2141 | default: |
2142 | return NULL; |
2143 | } |
2144 | return NULL; |
2145 | } |
2146 | |
2147 | const char * |
2148 | osm_gps_map_source_get_image_format(OsmGpsMapSource_t source) |
2149 | { |
2150 | switch(source) { |
2151 | case OSM_GPS_MAP_SOURCE_NULL: |
2152 | case OSM_GPS_MAP_SOURCE_OPENSTREETMAP: |
2153 | case OSM_GPS_MAP_SOURCE_OPENSTREETMAP_RENDERER: |
2154 | return "png"; |
2155 | case OSM_GPS_MAP_SOURCE_OPENAERIALMAP: |
2156 | case OSM_GPS_MAP_SOURCE_GOOGLE_STREET: |
2157 | case OSM_GPS_MAP_SOURCE_GOOGLE_HYBRID: |
2158 | case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_STREET: |
2159 | case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_SATELLITE: |
2160 | case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_HYBRID: |
2161 | case OSM_GPS_MAP_SOURCE_YAHOO_STREET: |
2162 | case OSM_GPS_MAP_SOURCE_YAHOO_SATELLITE: |
2163 | case OSM_GPS_MAP_SOURCE_YAHOO_HYBRID: |
2164 | case OSM_GPS_MAP_SOURCE_MAPS_FOR_FREE: |
2165 | case OSM_GPS_MAP_SOURCE_GOOGLE_SATELLITE: |
2166 | return "jpg"; |
2167 | default: |
2168 | return "bin"; |
2169 | } |
2170 | return "bin"; |
2171 | } |
2172 | |
2173 | |
2174 | int |
2175 | osm_gps_map_source_get_min_zoom(OsmGpsMapSource_t source) |
2176 | { |
2177 | return 1; |
2178 | } |
2179 | |
2180 | int |
2181 | osm_gps_map_source_get_max_zoom(OsmGpsMapSource_t source) |
2182 | { |
2183 | switch(source) { |
2184 | case OSM_GPS_MAP_SOURCE_NULL: |
2185 | return 18; |
2186 | case OSM_GPS_MAP_SOURCE_OPENSTREETMAP: |
2187 | return OSM_MAX_ZOOM; |
2188 | case OSM_GPS_MAP_SOURCE_OPENSTREETMAP_RENDERER: |
2189 | case OSM_GPS_MAP_SOURCE_OPENAERIALMAP: |
2190 | case OSM_GPS_MAP_SOURCE_GOOGLE_STREET: |
2191 | case OSM_GPS_MAP_SOURCE_GOOGLE_HYBRID: |
2192 | case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_STREET: |
2193 | case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_SATELLITE: |
2194 | case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_HYBRID: |
2195 | case OSM_GPS_MAP_SOURCE_YAHOO_STREET: |
2196 | case OSM_GPS_MAP_SOURCE_YAHOO_SATELLITE: |
2197 | case OSM_GPS_MAP_SOURCE_YAHOO_HYBRID: |
2198 | return 17; |
2199 | case OSM_GPS_MAP_SOURCE_MAPS_FOR_FREE: |
2200 | return 11; |
2201 | case OSM_GPS_MAP_SOURCE_GOOGLE_SATELLITE: |
2202 | return 18; |
2203 | default: |
2204 | return 17; |
2205 | } |
2206 | return 17; |
2207 | } |
2208 | |
2209 | void |
2210 | osm_gps_map_download_maps (OsmGpsMap *map, coord_t *pt1, coord_t *pt2, int zoom_start, int zoom_end) |
2211 | { |
2212 | int i,j,zoom,num_tiles; |
2213 | OsmGpsMapPrivate *priv = map->priv; |
2214 | |
2215 | if (pt1 && pt2) |
2216 | { |
2217 | gchar *filename; |
2218 | num_tiles = 0; |
2219 | zoom_end = CLAMP(zoom_end, priv->min_zoom, priv->max_zoom); |
2220 | g_debug("Download maps: z:%d->%d",zoom_start, zoom_end); |
2221 | |
2222 | for(zoom=zoom_start; zoom<=zoom_end; zoom++) |
2223 | { |
2224 | int x1,y1,x2,y2; |
2225 | |
2226 | x1 = (int)floor((float)lon2pixel(zoom, pt1->rlon) / (float)TILESIZE); |
2227 | y1 = (int)floor((float)lat2pixel(zoom, pt1->rlat) / (float)TILESIZE); |
2228 | |
2229 | x2 = (int)floor((float)lon2pixel(zoom, pt2->rlon) / (float)TILESIZE); |
2230 | y2 = (int)floor((float)lat2pixel(zoom, pt2->rlat) / (float)TILESIZE); |
2231 | |
2232 | // loop x1-x2 |
2233 | for(i=x1; i<=x2; i++) |
2234 | { |
2235 | // loop y1 - y2 |
2236 | for(j=y1; j<=y2; j++) |
2237 | { |
2238 | // x = i, y = j |
2239 | filename = g_strdup_printf("%s%c%d%c%d%c%d.%s", |
2240 | priv->cache_dir, G_DIR_SEPARATOR, |
2241 | zoom, G_DIR_SEPARATOR, |
2242 | i, G_DIR_SEPARATOR, |
2243 | j, |
2244 | priv->image_format); |
2245 | if (!g_file_test(filename, G_FILE_TEST_EXISTS)) |
2246 | { |
2247 | osm_gps_map_download_tile(map, zoom, i, j, FALSE); |
2248 | num_tiles++; |
2249 | } |
2250 | g_free(filename); |
2251 | } |
2252 | } |
2253 | g_debug("DL @Z:%d = %d tiles",zoom,num_tiles); |
2254 | } |
2255 | } |
2256 | } |
2257 | |
2258 | void |
2259 | osm_gps_map_get_bbox (OsmGpsMap *map, coord_t *pt1, coord_t *pt2) |
2260 | { |
2261 | OsmGpsMapPrivate *priv = map->priv; |
2262 | |
2263 | if (pt1 && pt2) { |
2264 | pt1->rlat = pixel2lat(priv->map_zoom, priv->map_y); |
2265 | pt1->rlon = pixel2lon(priv->map_zoom, priv->map_x); |
2266 | pt2->rlat = pixel2lat(priv->map_zoom, priv->map_y + GTK_WIDGET(map)->allocation.height); |
2267 | pt2->rlon = pixel2lon(priv->map_zoom, priv->map_x + GTK_WIDGET(map)->allocation.width); |
2268 | |
2269 | g_debug("BBOX: %f %f %f %f", pt1->rlat, pt1->rlon, pt2->rlat, pt2->rlon); |
2270 | } |
2271 | } |
2272 | |
2273 | void |
2274 | osm_gps_map_set_mapcenter (OsmGpsMap *map, float latitude, float longitude, int zoom) |
2275 | { |
2276 | osm_gps_map_set_center (map, latitude, longitude); |
2277 | osm_gps_map_set_zoom (map, zoom); |
2278 | } |
2279 | |
2280 | void |
2281 | osm_gps_map_set_center (OsmGpsMap *map, float latitude, float longitude) |
2282 | { |
2283 | int pixel_x, pixel_y; |
2284 | OsmGpsMapPrivate *priv; |
2285 | |
2286 | g_return_if_fail (OSM_IS_GPS_MAP (map)); |
2287 | priv = map->priv; |
2288 | |
2289 | priv->center_rlat = deg2rad(latitude); |
2290 | priv->center_rlon = deg2rad(longitude); |
2291 | priv->center_coord_set = TRUE; |
2292 | |
2293 | // pixel_x,y, offsets |
2294 | pixel_x = lon2pixel(priv->map_zoom, priv->center_rlon); |
2295 | pixel_y = lat2pixel(priv->map_zoom, priv->center_rlat); |
2296 | |
2297 | priv->map_x = pixel_x - GTK_WIDGET(map)->allocation.width/2; |
2298 | priv->map_y = pixel_y - GTK_WIDGET(map)->allocation.height/2; |
2299 | |
2300 | osm_gps_map_map_redraw_idle(map); |
2301 | } |
2302 | |
2303 | int |
2304 | osm_gps_map_set_zoom (OsmGpsMap *map, int zoom) |
2305 | { |
2306 | int zoom_old; |
2307 | double factor = 0.0; |
2308 | int width_center, height_center; |
2309 | OsmGpsMapPrivate *priv; |
2310 | |
2311 | g_return_val_if_fail (OSM_IS_GPS_MAP (map), 0); |
2312 | priv = map->priv; |
2313 | |
2314 | if (zoom != priv->map_zoom) |
2315 | { |
2316 | width_center = GTK_WIDGET(map)->allocation.width / 2; |
2317 | height_center = GTK_WIDGET(map)->allocation.height / 2; |
2318 | |
2319 | zoom_old = priv->map_zoom; |
2320 | //constrain zoom min_zoom -> max_zoom |
2321 | priv->map_zoom = CLAMP(zoom, priv->min_zoom, priv->max_zoom); |
2322 | |
2323 | if (priv->center_coord_set) |
2324 | { |
2325 | priv->map_x = lon2pixel(priv->map_zoom, priv->center_rlon) - width_center; |
2326 | priv->map_y = lat2pixel(priv->map_zoom, priv->center_rlat) - height_center; |
2327 | } |
2328 | else |
2329 | { |
2330 | factor = exp(priv->map_zoom * M_LN2)/exp(zoom_old * M_LN2); |
2331 | priv->map_x = ((priv->map_x + width_center) * factor) - width_center; |
2332 | priv->map_y = ((priv->map_y + height_center) * factor) - height_center; |
2333 | } |
2334 | |
2335 | g_debug("Zoom changed from %d to %d factor:%f x:%d", |
2336 | zoom_old, priv->map_zoom, factor, priv->map_x); |
2337 | |
2338 | osm_gps_map_map_redraw_idle(map); |
2339 | } |
2340 | return priv->map_zoom; |
2341 | } |
2342 | |
2343 | void |
2344 | osm_gps_map_add_track (OsmGpsMap *map, GSList *track) |
2345 | { |
2346 | OsmGpsMapPrivate *priv; |
2347 | |
2348 | g_return_if_fail (OSM_IS_GPS_MAP (map)); |
2349 | priv = map->priv; |
2350 | |
2351 | if (track) { |
2352 | priv->tracks = g_slist_append(priv->tracks, track); |
2353 | osm_gps_map_map_redraw_idle(map); |
2354 | } |
2355 | } |
2356 | |
2357 | void |
2358 | osm_gps_map_clear_tracks (OsmGpsMap *map) |
2359 | { |
2360 | g_return_if_fail (OSM_IS_GPS_MAP (map)); |
2361 | |
2362 | osm_gps_map_free_tracks(map); |
2363 | osm_gps_map_map_redraw_idle(map); |
2364 | } |
2365 | |
2366 | void |
2367 | osm_gps_map_add_image (OsmGpsMap *map, float latitude, float longitude, GdkPixbuf *image) |
2368 | { |
2369 | g_return_if_fail (OSM_IS_GPS_MAP (map)); |
2370 | |
2371 | if (image) { |
2372 | OsmGpsMapPrivate *priv = map->priv; |
2373 | image_t *im; |
2374 | |
2375 | //cache w/h for speed, and add image to list |
2376 | im = g_new0(image_t,1); |
2377 | im->w = gdk_pixbuf_get_width(image); |
2378 | im->h = gdk_pixbuf_get_height(image); |
2379 | im->pt.rlat = deg2rad(latitude); |
2380 | im->pt.rlon = deg2rad(longitude); |
2381 | |
2382 | g_object_ref(image); |
2383 | im->image = image; |
2384 | |
2385 | priv->images = g_slist_append(priv->images, im); |
2386 | |
2387 | osm_gps_map_map_redraw_idle(map); |
2388 | } |
2389 | } |
2390 | |
2391 | gboolean |
2392 | osm_gps_map_remove_image (OsmGpsMap *map, GdkPixbuf *image) |
2393 | { |
2394 | OsmGpsMapPrivate *priv = map->priv; |
2395 | if (priv->images) { |
2396 | GSList *list; |
2397 | for(list = priv->images; list != NULL; list = list->next) |
2398 | { |
2399 | image_t *im = list->data; |
2400 | if (im->image == image) |
2401 | { |
2402 | priv->images = g_slist_remove_link(priv->images, list); |
2403 | g_object_unref(im->image); |
2404 | g_free(im); |
2405 | osm_gps_map_map_redraw_idle(map); |
2406 | return TRUE; |
2407 | } |
2408 | } |
2409 | } |
2410 | return FALSE; |
2411 | } |
2412 | |
2413 | void |
2414 | osm_gps_map_clear_images (OsmGpsMap *map) |
2415 | { |
2416 | g_return_if_fail (OSM_IS_GPS_MAP (map)); |
2417 | |
2418 | osm_gps_map_free_images(map); |
2419 | osm_gps_map_map_redraw_idle(map); |
2420 | } |
2421 | |
2422 | void |
2423 | osm_gps_map_osd_speed (OsmGpsMap *map, float speed) |
2424 | { |
2425 | OsmGpsMapPrivate *priv; |
2426 | |
2427 | PangoContext *context = NULL; |
2428 | PangoLayout *layout = NULL; |
2429 | PangoFontDescription *desc = NULL; |
2430 | |
2431 | GdkColor color; |
2432 | GdkGC *gc; |
2433 | |
2434 | gchar *buffer; |
2435 | //static int x = 10, y = 10; |
2436 | static int width = 0, height = 0; |
2437 | |
2438 | g_return_if_fail (OSM_IS_GPS_MAP (map)); |
2439 | priv = map->priv; |
2440 | |
2441 | buffer = g_strdup_printf("%.0f", speed); |
2442 | |
2443 | /* pango initialisation */ |
2444 | context = gtk_widget_get_pango_context (GTK_WIDGET(map)); |
2445 | layout = pango_layout_new (context); |
2446 | desc = pango_font_description_new(); |
2447 | |
2448 | pango_font_description_set_size (desc, 40 * PANGO_SCALE); |
2449 | pango_layout_set_font_description (layout, desc); |
2450 | pango_layout_set_text (layout, buffer, strlen(buffer)); |
2451 | |
2452 | gc = gdk_gc_new (GTK_WIDGET(map)->window); |
2453 | |
2454 | color.red = (0 > 50) ? 0xffff : 0; |
2455 | color.green = 0; |
2456 | color.blue = 0; |
2457 | |
2458 | gdk_gc_set_rgb_fg_color (gc, &color); |
2459 | |
2460 | /* faster / less flicker alternative:*/ |
2461 | gdk_draw_drawable ( |
2462 | GTK_WIDGET(map)->window, |
2463 | GTK_WIDGET(map)->style->fg_gc[GTK_WIDGET_STATE(map)], |
2464 | priv->pixmap, |
2465 | 0,0, |
2466 | 0,0, |
2467 | width+10,width+10); |
2468 | |
2469 | gdk_draw_layout(GTK_WIDGET(map)->window, |
2470 | gc, |
2471 | 0, 0, |
2472 | layout); |
2473 | |
2474 | /* set width and height */ |
2475 | pango_layout_get_pixel_size(layout, &width, &height); |
2476 | |
2477 | g_free(buffer); |
2478 | pango_font_description_free (desc); |
2479 | g_object_unref (layout); |
2480 | g_object_unref (gc); |
2481 | } |
2482 | |
2483 | void |
2484 | osm_gps_map_draw_gps (OsmGpsMap *map, float latitude, float longitude, float heading) |
2485 | { |
2486 | int pixel_x, pixel_y; |
2487 | OsmGpsMapPrivate *priv; |
2488 | |
2489 | g_return_if_fail (OSM_IS_GPS_MAP (map)); |
2490 | priv = map->priv; |
2491 | |
2492 | priv->gps->rlat = deg2rad(latitude); |
2493 | priv->gps->rlon = deg2rad(longitude); |
2494 | priv->gps_valid = TRUE; |
2495 | |
2496 | // pixel_x,y, offsets |
2497 | pixel_x = lon2pixel(priv->map_zoom, priv->gps->rlon); |
2498 | pixel_y = lat2pixel(priv->map_zoom, priv->gps->rlat); |
2499 | |
2500 | //If trip marker add to list of gps points. |
2501 | if (priv->record_trip_history) { |
2502 | coord_t *tp = g_new0(coord_t,1); |
2503 | tp->rlat = priv->gps->rlat; |
2504 | tp->rlon = priv->gps->rlon; |
2505 | priv->trip_history = g_slist_append(priv->trip_history, tp); |
2506 | } |
2507 | |
2508 | // dont draw anything if we are dragging |
2509 | if (priv->dragging) { |
2510 | g_debug("Dragging"); |
2511 | return; |
2512 | } |
2513 | |
2514 | //Automatically center the map if the track approaches the edge |
2515 | if(priv->map_auto_center) { |
2516 | int x = pixel_x - priv->map_x; |
2517 | int y = pixel_y - priv->map_y; |
2518 | int width = GTK_WIDGET(map)->allocation.width; |
2519 | int height = GTK_WIDGET(map)->allocation.height; |
2520 | if( x < (width/2 - width/8) || x > (width/2 + width/8) || |
2521 | y < (height/2 - height/8) || y > (height/2 + height/8)) { |
2522 | |
2523 | priv->map_x = pixel_x - GTK_WIDGET(map)->allocation.width/2; |
2524 | priv->map_y = pixel_y - GTK_WIDGET(map)->allocation.height/2; |
2525 | priv->center_coord_set = FALSE; |
2526 | } |
2527 | } |
2528 | |
2529 | // this redraws the map (including the gps track, and adjusts the |
2530 | // map center if it was changed |
2531 | osm_gps_map_map_redraw_idle(map); |
2532 | } |
2533 | |
2534 | void |
2535 | osm_gps_map_clear_gps (OsmGpsMap *map) |
2536 | { |
2537 | osm_gps_map_free_trip(map); |
2538 | osm_gps_map_map_redraw_idle(map); |
2539 | } |
2540 | |
2541 | coord_t |
2542 | osm_gps_map_get_co_ordinates (OsmGpsMap *map, int pixel_x, int pixel_y) |
2543 | { |
2544 | coord_t coord; |
2545 | OsmGpsMapPrivate *priv = map->priv; |
2546 | |
2547 | coord.rlat = pixel2lat(priv->map_zoom, priv->map_y + pixel_y); |
2548 | coord.rlon = pixel2lon(priv->map_zoom, priv->map_x + pixel_x); |
2549 | return coord; |
2550 | } |
2551 | |
2552 | GtkWidget * |
2553 | osm_gps_map_new (void) |
2554 | { |
2555 | return g_object_new (OSM_TYPE_GPS_MAP, NULL); |
2556 | } |
2557 | |
2558 | void |
2559 | osm_gps_map_screen_to_geographic (OsmGpsMap *map, gint pixel_x, gint pixel_y, |
2560 | gfloat *latitude, gfloat *longitude) |
2561 | { |
2562 | OsmGpsMapPrivate *priv; |
2563 | |
2564 | g_return_if_fail (OSM_IS_GPS_MAP (map)); |
2565 | priv = map->priv; |
2566 | |
2567 | if (latitude) |
2568 | *latitude = rad2deg(pixel2lat(priv->map_zoom, priv->map_y + pixel_y)); |
2569 | if (longitude) |
2570 | *longitude = rad2deg(pixel2lon(priv->map_zoom, priv->map_x + pixel_x)); |
2571 | } |
2572 | |
2573 | void |
2574 | osm_gps_map_geographic_to_screen (OsmGpsMap *map, |
2575 | gfloat latitude, gfloat longitude, |
2576 | gint *pixel_x, gint *pixel_y) |
2577 | { |
2578 | OsmGpsMapPrivate *priv; |
2579 | |
2580 | g_return_if_fail (OSM_IS_GPS_MAP (map)); |
2581 | priv = map->priv; |
2582 | |
2583 | if (pixel_x) |
2584 | *pixel_x = lon2pixel(priv->map_zoom, deg2rad(longitude)) - priv->map_x; |
2585 | if (pixel_y) |
2586 | *pixel_y = lat2pixel(priv->map_zoom, deg2rad(latitude)) - priv->map_y; |
2587 | } |
2588 | |
2589 | void |
2590 | osm_gps_map_scroll (OsmGpsMap *map, gint dx, gint dy) |
2591 | { |
2592 | OsmGpsMapPrivate *priv; |
2593 | |
2594 | g_return_if_fail (OSM_IS_GPS_MAP (map)); |
2595 | priv = map->priv; |
2596 | |
2597 | priv->center_coord_set = FALSE; |
2598 | priv->map_x += dx; |
2599 | priv->map_y += dy; |
2600 | |
2601 | osm_gps_map_map_redraw_idle (map); |
2602 | } |
2603 | |
2604 | float |
2605 | osm_gps_map_get_scale(OsmGpsMap *map) |
2606 | { |
2607 | OsmGpsMapPrivate *priv; |
2608 | |
2609 | g_return_val_if_fail (OSM_IS_GPS_MAP (map), OSM_NAN); |
2610 | priv = map->priv; |
2611 | |
2612 | return osm_gps_map_get_scale_at_point(priv->map_zoom, priv->center_rlat, priv->center_rlon); |
2613 | } |
2614 |