Contents of /trunk/src/osm-gps-map.c

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Revision 114 - (hide annotations)
Wed Sep 16 20:04:38 2009 UTC (14 years, 8 months ago) by harbaum
File MIME type: text/plain
File size: 94623 byte(s) 
release 0.8.9
1 harbaum 32 /* -*- 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 harbaum 55 #include <glib/gstdio.h>
37 harbaum 32 #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 harbaum 77 #define OSM_GPS_MAP_SCROLL_STEP 10
53    
54     /* any defined key enables key support */
55     #if (defined(OSM_GPS_MAP_KEY_FULLSCREEN) || \
56     defined(OSM_GPS_MAP_KEY_ZOOMIN) || \
57     defined(OSM_GPS_MAP_KEY_ZOOMOUT) || \
58     defined(OSM_GPS_MAP_KEY_UP) || \
59     defined(OSM_GPS_MAP_KEY_DOWN) || \
60     defined(OSM_GPS_MAP_KEY_LEFT) || \
61     defined(OSM_GPS_MAP_KEY_RIGHT))
62     #define OSM_GPS_MAP_KEYS
63     #endif
64    
65     #ifdef OSM_GPS_MAP_KEYS
66     #include <gdk/gdkkeysyms.h>
67     #endif
68    
69 harbaum 89 #define USER_AGENT "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.11) Gecko/20071127 Firefox/2.0.0.11"
70    
71 harbaum 32 struct _OsmGpsMapPrivate
72     {
73     GHashTable *tile_queue;
74     GHashTable *missing_tiles;
75     GHashTable *tile_cache;
76    
77     int map_zoom;
78     int max_zoom;
79     int min_zoom;
80     gboolean map_auto_center;
81     gboolean map_auto_download;
82     int map_x;
83     int map_y;
84    
85     /* Latitude and longitude of the center of the map, in radians */
86     gfloat center_rlat;
87     gfloat center_rlon;
88    
89     guint max_tile_cache_size;
90     /* Incremented at each redraw */
91     guint redraw_cycle;
92     /* ID of the idle redraw operation */
93     guint idle_map_redraw;
94    
95     //how we download tiles
96     SoupSession *soup_session;
97     char *proxy_uri;
98    
99     //where downloaded tiles are cached
100 harbaum 89 char *tile_dir;
101 harbaum 32 char *cache_dir;
102    
103     //contains flags indicating the various special characters
104     //the uri string contains, that will be replaced when calculating
105     //the uri to download.
106 harbaum 55 OsmGpsMapSource_t map_source;
107 harbaum 32 char *repo_uri;
108 harbaum 55 char *image_format;
109 harbaum 32 int uri_format;
110     //flag indicating if the map source is located on the google
111     gboolean the_google;
112    
113     //gps tracking state
114     gboolean record_trip_history;
115     gboolean show_trip_history;
116     GSList *trip_history;
117     coord_t *gps;
118 harbaum 97 float gps_heading;
119 harbaum 32 gboolean gps_valid;
120    
121 harbaum 61 #ifdef ENABLE_OSD
122 harbaum 73 //the osd controls (if present)
123     osm_gps_map_osd_t *osd;
124 harbaum 75 #ifdef OSD_DOUBLE_BUFFER
125     GdkPixmap *dbuf_pixmap;
126 harbaum 61 #endif
127 harbaum 75 #endif
128 harbaum 77
129     #ifdef OSM_GPS_MAP_KEY_FULLSCREEN
130     gboolean fullscreen;
131     #endif
132 harbaum 73
133 harbaum 32 //additional images or tracks added to the map
134     GSList *tracks;
135     GSList *images;
136    
137     //Used for storing the joined tiles
138     GdkPixmap *pixmap;
139     GdkGC *gc_map;
140    
141     //The tile painted when one cannot be found
142 harbaum 55 GdkPixbuf *null_tile;
143 harbaum 32
144     //For tracking click and drag
145     int drag_counter;
146     int drag_mouse_dx;
147     int drag_mouse_dy;
148     int drag_start_mouse_x;
149     int drag_start_mouse_y;
150     int drag_start_map_x;
151     int drag_start_map_y;
152    
153     //for customizing the redering of the gps track
154     int ui_gps_track_width;
155     int ui_gps_point_inner_radius;
156     int ui_gps_point_outer_radius;
157    
158     guint is_disposed : 1;
159     guint dragging : 1;
160     guint center_coord_set : 1;
161     };
162    
163     #define OSM_GPS_MAP_PRIVATE(o) (OSM_GPS_MAP (o)->priv)
164    
165     typedef struct
166     {
167     GdkPixbuf *pixbuf;
168     /* We keep track of the number of the redraw cycle this tile was last used,
169     * so that osm_gps_map_purge_cache() can remove the older ones */
170     guint redraw_cycle;
171     } OsmCachedTile;
172    
173     enum
174     {
175     PROP_0,
176    
177     PROP_AUTO_CENTER,
178     PROP_RECORD_TRIP_HISTORY,
179     PROP_SHOW_TRIP_HISTORY,
180     PROP_AUTO_DOWNLOAD,
181     PROP_REPO_URI,
182     PROP_PROXY_URI,
183     PROP_TILE_CACHE_DIR,
184     PROP_ZOOM,
185     PROP_MAX_ZOOM,
186     PROP_MIN_ZOOM,
187     PROP_LATITUDE,
188     PROP_LONGITUDE,
189     PROP_MAP_X,
190     PROP_MAP_Y,
191     PROP_TILES_QUEUED,
192     PROP_GPS_TRACK_WIDTH,
193     PROP_GPS_POINT_R1,
194 harbaum 55 PROP_GPS_POINT_R2,
195     PROP_MAP_SOURCE,
196     PROP_IMAGE_FORMAT
197 harbaum 32 };
198    
199     G_DEFINE_TYPE (OsmGpsMap, osm_gps_map, GTK_TYPE_DRAWING_AREA);
200    
201     /*
202     * Drawing function forward defintions
203     */
204     static gchar *replace_string(const gchar *src, const gchar *from, const gchar *to);
205     static void inspect_map_uri(OsmGpsMap *map);
206     static gchar *replace_map_uri(OsmGpsMap *map, const gchar *uri, int zoom, int x, int y);
207     static void osm_gps_map_print_images (OsmGpsMap *map);
208     static void osm_gps_map_draw_gps_point (OsmGpsMap *map);
209     static void osm_gps_map_blit_tile(OsmGpsMap *map, GdkPixbuf *pixbuf, int offset_x, int offset_y);
210 harbaum 55 #ifdef LIBSOUP22
211     static void osm_gps_map_tile_download_complete (SoupMessage *msg, gpointer user_data);
212     #else
213     static void osm_gps_map_tile_download_complete (SoupSession *session, SoupMessage *msg, gpointer user_data);
214     #endif
215 harbaum 32 static void osm_gps_map_download_tile (OsmGpsMap *map, int zoom, int x, int y, gboolean redraw);
216     static void osm_gps_map_load_tile (OsmGpsMap *map, int zoom, int x, int y, int offset_x, int offset_y);
217     static void osm_gps_map_fill_tiles_pixel (OsmGpsMap *map);
218     static gboolean osm_gps_map_map_redraw (OsmGpsMap *map);
219     static void osm_gps_map_map_redraw_idle (OsmGpsMap *map);
220    
221     static void
222     cached_tile_free (OsmCachedTile *tile)
223     {
224     g_object_unref (tile->pixbuf);
225     g_slice_free (OsmCachedTile, tile);
226     }
227    
228     /*
229     * Description:
230     * Find and replace text within a string.
231     *
232     * Parameters:
233     * src (in) - pointer to source string
234     * from (in) - pointer to search text
235     * to (in) - pointer to replacement text
236     *
237     * Returns:
238     * Returns a pointer to dynamically-allocated memory containing string
239     * with occurences of the text pointed to by 'from' replaced by with the
240     * text pointed to by 'to'.
241     */
242     static gchar *
243     replace_string(const gchar *src, const gchar *from, const gchar *to)
244     {
245     size_t size = strlen(src) + 1;
246     size_t fromlen = strlen(from);
247     size_t tolen = strlen(to);
248    
249     /* Allocate the first chunk with enough for the original string. */
250     gchar *value = g_malloc(size);
251    
252    
253     /* We need to return 'value', so let's make a copy to mess around with. */
254     gchar *dst = value;
255    
256     if ( value != NULL )
257     {
258     for ( ;; )
259     {
260     /* Try to find the search text. */
261     const gchar *match = g_strstr_len(src, size, from);
262     if ( match != NULL )
263     {
264     gchar *temp;
265     /* Find out how many characters to copy up to the 'match'. */
266     size_t count = match - src;
267    
268    
269     /* Calculate the total size the string will be after the
270     * replacement is performed. */
271     size += tolen - fromlen;
272    
273     temp = g_realloc(value, size);
274     if ( temp == NULL )
275     {
276     g_free(value);
277     return NULL;
278     }
279    
280     /* we'll want to return 'value' eventually, so let's point it
281     * to the memory that we are now working with.
282     * And let's not forget to point to the right location in
283     * the destination as well. */
284     dst = temp + (dst - value);
285     value = temp;
286    
287     /*
288     * Copy from the source to the point where we matched. Then
289     * move the source pointer ahead by the amount we copied. And
290     * move the destination pointer ahead by the same amount.
291     */
292     g_memmove(dst, src, count);
293     src += count;
294     dst += count;
295    
296     /* Now copy in the replacement text 'to' at the position of
297     * the match. Adjust the source pointer by the text we replaced.
298     * Adjust the destination pointer by the amount of replacement
299     * text. */
300     g_memmove(dst, to, tolen);
301     src += fromlen;
302     dst += tolen;
303     }
304     else
305     {
306     /*
307     * Copy any remaining part of the string. This includes the null
308     * termination character.
309     */
310     strcpy(dst, src);
311     break;
312     }
313     }
314     }
315     return value;
316     }
317    
318     static void
319     map_convert_coords_to_quadtree_string(OsmGpsMap *map, gint x, gint y, gint zoomlevel,
320     gchar *buffer, const gchar initial,
321     const gchar *const quadrant)
322     {
323     gchar *ptr = buffer;
324     gint n;
325    
326     if (initial)
327     *ptr++ = initial;
328    
329     for(n = zoomlevel-1; n >= 0; n--)
330     {
331     gint xbit = (x >> n) & 1;
332     gint ybit = (y >> n) & 1;
333     *ptr++ = quadrant[xbit + 2 * ybit];
334     }
335    
336     *ptr++ = '\0';
337     }
338    
339    
340     static void
341     inspect_map_uri(OsmGpsMap *map)
342     {
343     OsmGpsMapPrivate *priv = map->priv;
344 harbaum 89 priv->uri_format = 0;
345     priv->the_google = FALSE;
346 harbaum 32
347     if (g_strrstr(priv->repo_uri, URI_MARKER_X))
348     priv->uri_format |= URI_HAS_X;
349    
350     if (g_strrstr(priv->repo_uri, URI_MARKER_Y))
351     priv->uri_format |= URI_HAS_Y;
352    
353     if (g_strrstr(priv->repo_uri, URI_MARKER_Z))
354     priv->uri_format |= URI_HAS_Z;
355    
356     if (g_strrstr(priv->repo_uri, URI_MARKER_S))
357     priv->uri_format |= URI_HAS_S;
358    
359     if (g_strrstr(priv->repo_uri, URI_MARKER_Q))
360     priv->uri_format |= URI_HAS_Q;
361    
362     if (g_strrstr(priv->repo_uri, URI_MARKER_Q0))
363     priv->uri_format |= URI_HAS_Q0;
364    
365     if (g_strrstr(priv->repo_uri, URI_MARKER_YS))
366     priv->uri_format |= URI_HAS_YS;
367    
368     if (g_strrstr(priv->repo_uri, URI_MARKER_R))
369     priv->uri_format |= URI_HAS_R;
370    
371     if (g_strrstr(priv->repo_uri, "google.com"))
372     priv->the_google = TRUE;
373    
374     g_debug("URI Format: 0x%X (google: %X)", priv->uri_format, priv->the_google);
375    
376     }
377    
378     static gchar *
379     replace_map_uri(OsmGpsMap *map, const gchar *uri, int zoom, int x, int y)
380     {
381     OsmGpsMapPrivate *priv = map->priv;
382     char *url;
383     unsigned int i;
384     char location[22];
385    
386     i = 1;
387     url = g_strdup(uri);
388     while (i < URI_FLAG_END)
389     {
390     char *s = NULL;
391     char *old;
392    
393     old = url;
394     switch(i & priv->uri_format)
395     {
396     case URI_HAS_X:
397     s = g_strdup_printf("%d", x);
398     url = replace_string(url, URI_MARKER_X, s);
399     //g_debug("FOUND " URI_MARKER_X);
400     break;
401     case URI_HAS_Y:
402     s = g_strdup_printf("%d", y);
403     url = replace_string(url, URI_MARKER_Y, s);
404     //g_debug("FOUND " URI_MARKER_Y);
405     break;
406     case URI_HAS_Z:
407     s = g_strdup_printf("%d", zoom);
408     url = replace_string(url, URI_MARKER_Z, s);
409     //g_debug("FOUND " URI_MARKER_Z);
410     break;
411     case URI_HAS_S:
412     s = g_strdup_printf("%d", priv->max_zoom-zoom);
413     url = replace_string(url, URI_MARKER_S, s);
414     //g_debug("FOUND " URI_MARKER_S);
415     break;
416     case URI_HAS_Q:
417     map_convert_coords_to_quadtree_string(map,x,y,zoom,location,'t',"qrts");
418     s = g_strdup_printf("%s", location);
419     url = replace_string(url, URI_MARKER_Q, s);
420     //g_debug("FOUND " URI_MARKER_Q);
421     break;
422     case URI_HAS_Q0:
423     map_convert_coords_to_quadtree_string(map,x,y,zoom,location,'\0', "0123");
424     s = g_strdup_printf("%s", location);
425     url = replace_string(url, URI_MARKER_Q0, s);
426     //g_debug("FOUND " URI_MARKER_Q0);
427     break;
428     case URI_HAS_YS:
429     // s = g_strdup_printf("%d", y);
430     // url = replace_string(url, URI_MARKER_YS, s);
431     g_warning("FOUND " URI_MARKER_YS " NOT IMPLEMENTED");
432     // retval = g_strdup_printf(repo->url,
433     // tilex,
434     // (1 << (MAX_ZOOM - zoom)) - tiley - 1,
435     // zoom - (MAX_ZOOM - 17));
436     break;
437     case URI_HAS_R:
438     s = g_strdup_printf("%d", g_random_int_range(0,4));
439     url = replace_string(url, URI_MARKER_R, s);
440     //g_debug("FOUND " URI_MARKER_R);
441     break;
442     default:
443     s = NULL;
444     break;
445     }
446    
447     if (s) {
448     g_free(s);
449     g_free(old);
450     }
451    
452     i = (i << 1);
453    
454     }
455    
456     return url;
457     }
458    
459     static void
460     my_log_handler (const gchar * log_domain, GLogLevelFlags log_level, const gchar * message, gpointer user_data)
461     {
462     if (!(log_level & G_LOG_LEVEL_DEBUG) || ENABLE_DEBUG)
463     g_log_default_handler (log_domain, log_level, message, user_data);
464     }
465    
466 harbaum 55 static float
467     osm_gps_map_get_scale_at_point(int zoom, float rlat, float rlon)
468     {
469     /* world at zoom 1 == 512 pixels */
470     return cos(rlat) * M_PI * OSM_EQ_RADIUS / (1<<(7+zoom));
471     }
472    
473 harbaum 32 /* clears the trip list and all resources */
474     static void
475     osm_gps_map_free_trip (OsmGpsMap *map)
476     {
477     OsmGpsMapPrivate *priv = map->priv;
478     if (priv->trip_history) {
479     g_slist_foreach(priv->trip_history, (GFunc) g_free, NULL);
480     g_slist_free(priv->trip_history);
481     priv->trip_history = NULL;
482     }
483     }
484    
485     /* clears the tracks and all resources */
486     static void
487     osm_gps_map_free_tracks (OsmGpsMap *map)
488     {
489     OsmGpsMapPrivate *priv = map->priv;
490     if (priv->tracks)
491     {
492     GSList* tmp = priv->tracks;
493     while (tmp != NULL)
494     {
495     g_slist_foreach(tmp->data, (GFunc) g_free, NULL);
496     g_slist_free(tmp->data);
497     tmp = g_slist_next(tmp);
498     }
499     g_slist_free(priv->tracks);
500     priv->tracks = NULL;
501     }
502     }
503    
504     /* free the poi image lists */
505     static void
506     osm_gps_map_free_images (OsmGpsMap *map)
507     {
508     OsmGpsMapPrivate *priv = map->priv;
509     if (priv->images) {
510     GSList *list;
511     for(list = priv->images; list != NULL; list = list->next)
512     {
513     image_t *im = list->data;
514     g_object_unref(im->image);
515     g_free(im);
516     }
517     g_slist_free(priv->images);
518     priv->images = NULL;
519     }
520     }
521    
522     static void
523     osm_gps_map_print_images (OsmGpsMap *map)
524     {
525     GSList *list;
526     int x,y,pixel_x,pixel_y;
527     int min_x = 0,min_y = 0,max_x = 0,max_y = 0;
528     int map_x0, map_y0;
529     OsmGpsMapPrivate *priv = map->priv;
530    
531     map_x0 = priv->map_x - EXTRA_BORDER;
532     map_y0 = priv->map_y - EXTRA_BORDER;
533     for(list = priv->images; list != NULL; list = list->next)
534     {
535     image_t *im = list->data;
536    
537     // pixel_x,y, offsets
538     pixel_x = lon2pixel(priv->map_zoom, im->pt.rlon);
539     pixel_y = lat2pixel(priv->map_zoom, im->pt.rlat);
540    
541     g_debug("Image %dx%d @: %f,%f (%d,%d)",
542     im->w, im->h,
543     im->pt.rlat, im->pt.rlon,
544     pixel_x, pixel_y);
545    
546     x = pixel_x - map_x0;
547     y = pixel_y - map_y0;
548    
549     gdk_draw_pixbuf (
550     priv->pixmap,
551     priv->gc_map,
552     im->image,
553     0,0,
554     x-(im->w/2),y-(im->h/2),
555     im->w,im->h,
556     GDK_RGB_DITHER_NONE, 0, 0);
557    
558     max_x = MAX(x+im->w,max_x);
559     min_x = MIN(x-im->w,min_x);
560     max_y = MAX(y+im->h,max_y);
561     min_y = MIN(y-im->h,min_y);
562     }
563    
564     gtk_widget_queue_draw_area (
565     GTK_WIDGET(map),
566     min_x + EXTRA_BORDER, min_y + EXTRA_BORDER,
567     max_x + EXTRA_BORDER, max_y + EXTRA_BORDER);
568    
569     }
570    
571     static void
572     osm_gps_map_draw_gps_point (OsmGpsMap *map)
573     {
574     OsmGpsMapPrivate *priv = map->priv;
575    
576     //incase we get called before we have got a gps point
577     if (priv->gps_valid) {
578     int map_x0, map_y0;
579     int x, y;
580     int r = priv->ui_gps_point_inner_radius;
581     int r2 = priv->ui_gps_point_outer_radius;
582 harbaum 97 int mr = MAX(3*r,r2);
583 harbaum 32
584     map_x0 = priv->map_x - EXTRA_BORDER;
585     map_y0 = priv->map_y - EXTRA_BORDER;
586     x = lon2pixel(priv->map_zoom, priv->gps->rlon) - map_x0;
587     y = lat2pixel(priv->map_zoom, priv->gps->rlat) - map_y0;
588     #ifdef USE_CAIRO
589     cairo_t *cr;
590     cairo_pattern_t *pat;
591     #else
592     GdkColor color;
593     GdkGC *marker;
594     #endif
595    
596     #ifdef USE_CAIRO
597     cr = gdk_cairo_create(priv->pixmap);
598    
599     // draw transparent area
600     if (r2 > 0) {
601     cairo_set_line_width (cr, 1.5);
602     cairo_set_source_rgba (cr, 0.75, 0.75, 0.75, 0.4);
603     cairo_arc (cr, x, y, r2, 0, 2 * M_PI);
604     cairo_fill (cr);
605     // draw transparent area border
606     cairo_set_source_rgba (cr, 0.55, 0.55, 0.55, 0.4);
607     cairo_arc (cr, x, y, r2, 0, 2 * M_PI);
608     cairo_stroke(cr);
609     }
610    
611     // draw ball gradient
612     if (r > 0) {
613 harbaum 97 // draw direction arrow
614     if(!isnan(priv->gps_heading))
615     {
616     cairo_move_to (cr, x-r*cos(priv->gps_heading), y-r*sin(priv->gps_heading));
617     cairo_line_to (cr, x+3*r*sin(priv->gps_heading), y-3*r*cos(priv->gps_heading));
618     cairo_line_to (cr, x+r*cos(priv->gps_heading), y+r*sin(priv->gps_heading));
619     cairo_close_path (cr);
620    
621     cairo_set_source_rgba (cr, 0.3, 0.3, 1.0, 0.5);
622     cairo_fill_preserve (cr);
623    
624     cairo_set_line_width (cr, 1.0);
625     cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.5);
626     cairo_stroke(cr);
627     }
628    
629 harbaum 32 pat = cairo_pattern_create_radial (x-(r/5), y-(r/5), (r/5), x, y, r);
630     cairo_pattern_add_color_stop_rgba (pat, 0, 1, 1, 1, 1.0);
631     cairo_pattern_add_color_stop_rgba (pat, 1, 0, 0, 1, 1.0);
632     cairo_set_source (cr, pat);
633     cairo_arc (cr, x, y, r, 0, 2 * M_PI);
634     cairo_fill (cr);
635     cairo_pattern_destroy (pat);
636     // draw ball border
637     cairo_set_line_width (cr, 1.0);
638     cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 1.0);
639     cairo_arc (cr, x, y, r, 0, 2 * M_PI);
640     cairo_stroke(cr);
641     }
642 harbaum 97
643 harbaum 32 cairo_destroy(cr);
644     gtk_widget_queue_draw_area (GTK_WIDGET(map),
645     x-mr,
646     y-mr,
647     mr*2,
648     mr*2);
649     #else
650     marker = gdk_gc_new(priv->pixmap);
651     color.red = 5000;
652     color.green = 5000;
653     color.blue = 55000;
654     gdk_gc_set_rgb_fg_color(marker, &color);
655     gdk_gc_set_line_attributes(marker, lw, GDK_LINE_SOLID, GDK_CAP_ROUND, GDK_JOIN_ROUND);
656    
657     if (r2 > 0) {
658     gdk_draw_arc (priv->pixmap,
659     marker,
660     FALSE, //filled
661     x-r2, y-r2, // x,y
662     r2*2,r2*2, // width, height
663     0, 360*64); // start-end angle 64th, from 3h, anti clockwise
664     }
665     if (r > 0) {
666     gdk_draw_arc (priv->pixmap,
667     marker,
668     TRUE, //filled
669     x-r, y-r, // x,y
670     r*2,r*2, // width, height
671     0, 360*64); // start-end angle 64th, from 3h, anti clockwise
672     }
673    
674     g_object_unref(marker);
675     gtk_widget_queue_draw_area (GTK_WIDGET(map),
676     x-(mr+lw),
677     y-(mr+lw),
678     (mr*2)+lw+lw,
679     (mr*2)+lw+lw);
680     #endif
681     }
682 harbaum 57 }
683    
684 harbaum 32 static void
685     osm_gps_map_blit_tile(OsmGpsMap *map, GdkPixbuf *pixbuf, int offset_x, int offset_y)
686     {
687     OsmGpsMapPrivate *priv = map->priv;
688    
689 harbaum 55 g_debug("Queing redraw @ %d,%d (w:%d h:%d)", offset_x,offset_y, TILESIZE,TILESIZE);
690 harbaum 32
691     /* draw pixbuf onto pixmap */
692     gdk_draw_pixbuf (priv->pixmap,
693     priv->gc_map,
694     pixbuf,
695     0,0,
696     offset_x,offset_y,
697     TILESIZE,TILESIZE,
698     GDK_RGB_DITHER_NONE, 0, 0);
699     }
700    
701     /* libsoup-2.2 and libsoup-2.4 use different ways to store the body data */
702     #ifdef LIBSOUP22
703     #define soup_message_headers_append(a,b,c) soup_message_add_header(a,b,c)
704     #define MSG_RESPONSE_BODY(a) ((a)->response.body)
705     #define MSG_RESPONSE_LEN(a) ((a)->response.length)
706     #define MSG_RESPONSE_LEN_FORMAT "%u"
707     #else
708     #define MSG_RESPONSE_BODY(a) ((a)->response_body->data)
709     #define MSG_RESPONSE_LEN(a) ((a)->response_body->length)
710     #define MSG_RESPONSE_LEN_FORMAT "%lld"
711     #endif
712    
713     #ifdef LIBSOUP22
714     static void
715     osm_gps_map_tile_download_complete (SoupMessage *msg, gpointer user_data)
716     #else
717     static void
718     osm_gps_map_tile_download_complete (SoupSession *session, SoupMessage *msg, gpointer user_data)
719     #endif
720     {
721 harbaum 55 FILE *file;
722 harbaum 32 tile_download_t *dl = (tile_download_t *)user_data;
723     OsmGpsMap *map = OSM_GPS_MAP(dl->map);
724     OsmGpsMapPrivate *priv = map->priv;
725     gboolean file_saved = FALSE;
726    
727     if (SOUP_STATUS_IS_SUCCESSFUL (msg->status_code))
728     {
729     /* save tile into cachedir if one has been specified */
730     if (priv->cache_dir)
731     {
732     if (g_mkdir_with_parents(dl->folder,0700) == 0)
733     {
734 harbaum 55 file = g_fopen(dl->filename, "wb");
735     if (file != NULL)
736 harbaum 32 {
737 harbaum 55 fwrite (MSG_RESPONSE_BODY(msg), 1, MSG_RESPONSE_LEN(msg), file);
738 harbaum 32 file_saved = TRUE;
739 harbaum 55 g_debug("Wrote "MSG_RESPONSE_LEN_FORMAT" bytes to %s", MSG_RESPONSE_LEN(msg), dl->filename);
740     fclose (file);
741 harbaum 32
742     }
743     }
744     else
745     {
746 harbaum 62 g_warning("Error creating tile download directory: %s",
747     dl->folder);
748     perror("perror:");
749 harbaum 32 }
750     }
751    
752     if (dl->redraw)
753     {
754     GdkPixbuf *pixbuf = NULL;
755    
756 harbaum 55 /* if the file was actually stored on disk, we can simply */
757     /* load and decode it from that file */
758 harbaum 32 if (priv->cache_dir)
759     {
760     if (file_saved)
761     {
762     pixbuf = gdk_pixbuf_new_from_file (dl->filename, NULL);
763     }
764     }
765     else
766     {
767     GdkPixbufLoader *loader;
768     char *extension = strrchr (dl->filename, '.');
769    
770     /* parse file directly from memory */
771     if (extension)
772     {
773     loader = gdk_pixbuf_loader_new_with_type (extension+1, NULL);
774     if (!gdk_pixbuf_loader_write (loader, (unsigned char*)MSG_RESPONSE_BODY(msg), MSG_RESPONSE_LEN(msg), NULL))
775     {
776     g_warning("Error: Decoding of image failed");
777     }
778     gdk_pixbuf_loader_close(loader, NULL);
779    
780     pixbuf = gdk_pixbuf_loader_get_pixbuf(loader);
781    
782     /* give up loader but keep the pixbuf */
783     g_object_ref(pixbuf);
784     g_object_unref(loader);
785     }
786     else
787     {
788     g_warning("Error: Unable to determine image file format");
789     }
790     }
791 harbaum 55
792 harbaum 32 /* Store the tile into the cache */
793     if (G_LIKELY (pixbuf))
794     {
795     OsmCachedTile *tile = g_slice_new (OsmCachedTile);
796     tile->pixbuf = pixbuf;
797     tile->redraw_cycle = priv->redraw_cycle;
798     /* if the tile is already in the cache (it could be one
799     * rendered from another zoom level), it will be
800     * overwritten */
801     g_hash_table_insert (priv->tile_cache, dl->filename, tile);
802     /* NULL-ify dl->filename so that it won't be freed, as
803     * we are using it as a key in the hash table */
804     dl->filename = NULL;
805     }
806     osm_gps_map_map_redraw_idle (map);
807     }
808     g_hash_table_remove(priv->tile_queue, dl->uri);
809    
810     g_free(dl->uri);
811     g_free(dl->folder);
812     g_free(dl->filename);
813     g_free(dl);
814     }
815     else
816     {
817     g_warning("Error downloading tile: %d - %s", msg->status_code, msg->reason_phrase);
818     if (msg->status_code == SOUP_STATUS_NOT_FOUND)
819     {
820     g_hash_table_insert(priv->missing_tiles, dl->uri, NULL);
821     g_hash_table_remove(priv->tile_queue, dl->uri);
822     }
823     else if (msg->status_code == SOUP_STATUS_CANCELLED)
824     {
825     ;//application exiting
826     }
827     else
828     {
829     #ifdef LIBSOUP22
830     soup_session_requeue_message(dl->session, msg);
831     #else
832     soup_session_requeue_message(session, msg);
833     #endif
834     return;
835     }
836     }
837    
838    
839     }
840    
841     static void
842     osm_gps_map_download_tile (OsmGpsMap *map, int zoom, int x, int y, gboolean redraw)
843     {
844     SoupMessage *msg;
845     OsmGpsMapPrivate *priv = map->priv;
846     tile_download_t *dl = g_new0(tile_download_t,1);
847    
848     //calculate the uri to download
849     dl->uri = replace_map_uri(map, priv->repo_uri, zoom, x, y);
850    
851     #ifdef LIBSOUP22
852     dl->session = priv->soup_session;
853     #endif
854    
855     //check the tile has not already been queued for download,
856     //or has been attempted, and its missing
857     if (g_hash_table_lookup_extended(priv->tile_queue, dl->uri, NULL, NULL) ||
858     g_hash_table_lookup_extended(priv->missing_tiles, dl->uri, NULL, NULL) )
859     {
860     g_debug("Tile already downloading (or missing)");
861     g_free(dl->uri);
862     g_free(dl);
863     } else {
864 harbaum 55 dl->folder = g_strdup_printf("%s%c%d%c%d%c",
865     priv->cache_dir, G_DIR_SEPARATOR,
866     zoom, G_DIR_SEPARATOR,
867     x, G_DIR_SEPARATOR);
868     dl->filename = g_strdup_printf("%s%c%d%c%d%c%d.%s",
869     priv->cache_dir, G_DIR_SEPARATOR,
870     zoom, G_DIR_SEPARATOR,
871     x, G_DIR_SEPARATOR,
872     y,
873     priv->image_format);
874 harbaum 32 dl->map = map;
875     dl->redraw = redraw;
876    
877     g_debug("Download tile: %d,%d z:%d\n\t%s --> %s", x, y, zoom, dl->uri, dl->filename);
878    
879     msg = soup_message_new (SOUP_METHOD_GET, dl->uri);
880     if (msg) {
881     if (priv->the_google) {
882     //Set maps.google.com as the referrer
883     g_debug("Setting Google Referrer");
884     soup_message_headers_append(msg->request_headers, "Referer", "http://maps.google.com/");
885     //For google satelite also set the appropriate cookie value
886     if (priv->uri_format & URI_HAS_Q) {
887     const char *cookie = g_getenv("GOOGLE_COOKIE");
888     if (cookie) {
889     g_debug("Adding Google Cookie");
890     soup_message_headers_append(msg->request_headers, "Cookie", cookie);
891     }
892     }
893     }
894    
895 harbaum 89 #ifdef LIBSOUP22
896     soup_message_headers_append(msg->request_headers,
897     "User-Agent", USER_AGENT);
898     #endif
899    
900 harbaum 32 g_hash_table_insert (priv->tile_queue, dl->uri, msg);
901     soup_session_queue_message (priv->soup_session, msg, osm_gps_map_tile_download_complete, dl);
902     } else {
903     g_warning("Could not create soup message");
904     g_free(dl->uri);
905     g_free(dl->folder);
906     g_free(dl->filename);
907     g_free(dl);
908     }
909     }
910     }
911    
912     static GdkPixbuf *
913     osm_gps_map_load_cached_tile (OsmGpsMap *map, int zoom, int x, int y)
914     {
915     OsmGpsMapPrivate *priv = map->priv;
916     gchar *filename;
917 harbaum 55 GdkPixbuf *pixbuf = NULL;
918 harbaum 32 OsmCachedTile *tile;
919    
920 harbaum 55 filename = g_strdup_printf("%s%c%d%c%d%c%d.%s",
921     priv->cache_dir, G_DIR_SEPARATOR,
922     zoom, G_DIR_SEPARATOR,
923     x, G_DIR_SEPARATOR,
924     y,
925     priv->image_format);
926 harbaum 32
927     tile = g_hash_table_lookup (priv->tile_cache, filename);
928     if (tile)
929     {
930     g_free (filename);
931     }
932 harbaum 55 else
933 harbaum 32 {
934     pixbuf = gdk_pixbuf_new_from_file (filename, NULL);
935     if (pixbuf)
936     {
937     tile = g_slice_new (OsmCachedTile);
938     tile->pixbuf = pixbuf;
939     g_hash_table_insert (priv->tile_cache, filename, tile);
940     }
941     }
942    
943     /* set/update the redraw_cycle timestamp on the tile */
944     if (tile)
945     {
946     tile->redraw_cycle = priv->redraw_cycle;
947     pixbuf = g_object_ref (tile->pixbuf);
948 harbaum 55 }
949 harbaum 32
950     return pixbuf;
951     }
952    
953     static GdkPixbuf *
954     osm_gps_map_find_bigger_tile (OsmGpsMap *map, int zoom, int x, int y,
955     int *zoom_found)
956     {
957     GdkPixbuf *pixbuf;
958     int next_zoom, next_x, next_y;
959    
960     if (zoom == 0) return NULL;
961     next_zoom = zoom - 1;
962     next_x = x / 2;
963     next_y = y / 2;
964     pixbuf = osm_gps_map_load_cached_tile (map, next_zoom, next_x, next_y);
965     if (pixbuf)
966     *zoom_found = next_zoom;
967     else
968     pixbuf = osm_gps_map_find_bigger_tile (map, next_zoom, next_x, next_y,
969     zoom_found);
970     return pixbuf;
971     }
972    
973     static GdkPixbuf *
974     osm_gps_map_render_missing_tile_upscaled (OsmGpsMap *map, int zoom,
975     int x, int y)
976     {
977     GdkPixbuf *pixbuf, *big, *area;
978     int zoom_big, zoom_diff, area_size, area_x, area_y;
979     int modulo;
980    
981     big = osm_gps_map_find_bigger_tile (map, zoom, x, y, &zoom_big);
982     if (!big) return NULL;
983    
984     g_debug ("Found bigger tile (zoom = %d, wanted = %d)", zoom_big, zoom);
985    
986     /* get a Pixbuf for the area to magnify */
987     zoom_diff = zoom - zoom_big;
988     area_size = TILESIZE >> zoom_diff;
989     modulo = 1 << zoom_diff;
990     area_x = (x % modulo) * area_size;
991     area_y = (y % modulo) * area_size;
992     area = gdk_pixbuf_new_subpixbuf (big, area_x, area_y,
993     area_size, area_size);
994     g_object_unref (big);
995     pixbuf = gdk_pixbuf_scale_simple (area, TILESIZE, TILESIZE,
996     GDK_INTERP_NEAREST);
997     g_object_unref (area);
998     return pixbuf;
999     }
1000    
1001     static GdkPixbuf *
1002     osm_gps_map_render_missing_tile (OsmGpsMap *map, int zoom, int x, int y)
1003     {
1004     /* maybe TODO: render from downscaled tiles, if the following fails */
1005     return osm_gps_map_render_missing_tile_upscaled (map, zoom, x, y);
1006     }
1007    
1008     static void
1009     osm_gps_map_load_tile (OsmGpsMap *map, int zoom, int x, int y, int offset_x, int offset_y)
1010     {
1011     OsmGpsMapPrivate *priv = map->priv;
1012 harbaum 55 gchar *filename;
1013 harbaum 32 GdkPixbuf *pixbuf;
1014    
1015     g_debug("Load tile %d,%d (%d,%d) z:%d", x, y, offset_x, offset_y, zoom);
1016    
1017 harbaum 55 if (priv->map_source == OSM_GPS_MAP_SOURCE_NULL) {
1018     osm_gps_map_blit_tile(map, priv->null_tile, offset_x,offset_y);
1019     return;
1020     }
1021 harbaum 32
1022 harbaum 55 filename = g_strdup_printf("%s%c%d%c%d%c%d.%s",
1023     priv->cache_dir, G_DIR_SEPARATOR,
1024     zoom, G_DIR_SEPARATOR,
1025     x, G_DIR_SEPARATOR,
1026     y,
1027     priv->image_format);
1028    
1029     /* try to get file from internal cache first */
1030     if(!(pixbuf = osm_gps_map_load_cached_tile(map, zoom, x, y)))
1031 harbaum 32 pixbuf = gdk_pixbuf_new_from_file (filename, NULL);
1032    
1033 harbaum 55 if(pixbuf)
1034 harbaum 32 {
1035 harbaum 55 g_debug("Found tile %s", filename);
1036 harbaum 32 osm_gps_map_blit_tile(map, pixbuf, offset_x,offset_y);
1037     g_object_unref (pixbuf);
1038     }
1039     else
1040     {
1041     if (priv->map_auto_download)
1042     osm_gps_map_download_tile(map, zoom, x, y, TRUE);
1043    
1044     /* try to render the tile by scaling cached tiles from other zoom
1045     * levels */
1046     pixbuf = osm_gps_map_render_missing_tile (map, zoom, x, y);
1047     if (pixbuf)
1048     {
1049     gdk_draw_pixbuf (priv->pixmap,
1050     priv->gc_map,
1051     pixbuf,
1052     0,0,
1053     offset_x,offset_y,
1054     TILESIZE,TILESIZE,
1055     GDK_RGB_DITHER_NONE, 0, 0);
1056     g_object_unref (pixbuf);
1057     }
1058     else
1059     {
1060     //prevent some artifacts when drawing not yet loaded areas.
1061     gdk_draw_rectangle (priv->pixmap,
1062     GTK_WIDGET(map)->style->white_gc,
1063     TRUE, offset_x, offset_y, TILESIZE, TILESIZE);
1064     }
1065     }
1066 harbaum 55 g_free(filename);
1067 harbaum 32 }
1068    
1069     static void
1070     osm_gps_map_fill_tiles_pixel (OsmGpsMap *map)
1071     {
1072     OsmGpsMapPrivate *priv = map->priv;
1073     int i,j, width, height, tile_x0, tile_y0, tiles_nx, tiles_ny;
1074     int offset_xn = 0;
1075     int offset_yn = 0;
1076     int offset_x;
1077     int offset_y;
1078    
1079     g_debug("Fill tiles: %d,%d z:%d", priv->map_x, priv->map_y, priv->map_zoom);
1080    
1081     offset_x = - priv->map_x % TILESIZE;
1082     offset_y = - priv->map_y % TILESIZE;
1083     if (offset_x > 0) offset_x -= TILESIZE;
1084     if (offset_y > 0) offset_y -= TILESIZE;
1085    
1086     offset_xn = offset_x + EXTRA_BORDER;
1087     offset_yn = offset_y + EXTRA_BORDER;
1088    
1089     width = GTK_WIDGET(map)->allocation.width;
1090     height = GTK_WIDGET(map)->allocation.height;
1091    
1092     tiles_nx = (width - offset_x) / TILESIZE + 1;
1093     tiles_ny = (height - offset_y) / TILESIZE + 1;
1094    
1095     tile_x0 = floor((float)priv->map_x / (float)TILESIZE);
1096     tile_y0 = floor((float)priv->map_y / (float)TILESIZE);
1097    
1098     //TODO: implement wrap around
1099     for (i=tile_x0; i<(tile_x0+tiles_nx);i++)
1100     {
1101     for (j=tile_y0; j<(tile_y0+tiles_ny); j++)
1102     {
1103     if( j<0 || i<0 || i>=exp(priv->map_zoom * M_LN2) || j>=exp(priv->map_zoom * M_LN2))
1104     {
1105     gdk_draw_rectangle (priv->pixmap,
1106     GTK_WIDGET(map)->style->white_gc,
1107     TRUE,
1108     offset_xn, offset_yn,
1109     TILESIZE,TILESIZE);
1110     }
1111     else
1112     {
1113     osm_gps_map_load_tile(map,
1114     priv->map_zoom,
1115     i,j,
1116     offset_xn,offset_yn);
1117     }
1118     offset_yn += TILESIZE;
1119     }
1120     offset_xn += TILESIZE;
1121     offset_yn = offset_y + EXTRA_BORDER;
1122     }
1123     }
1124    
1125     static void
1126     osm_gps_map_print_track (OsmGpsMap *map, GSList *trackpoint_list)
1127     {
1128     OsmGpsMapPrivate *priv = map->priv;
1129    
1130     GSList *list;
1131     int x,y;
1132     int min_x = 0,min_y = 0,max_x = 0,max_y = 0;
1133     int lw = priv->ui_gps_track_width;
1134     int map_x0, map_y0;
1135     #ifdef USE_CAIRO
1136     cairo_t *cr;
1137     #else
1138     int last_x = 0, last_y = 0;
1139     GdkColor color;
1140     GdkGC *gc;
1141     #endif
1142    
1143     #ifdef USE_CAIRO
1144     cr = gdk_cairo_create(priv->pixmap);
1145     cairo_set_line_width (cr, lw);
1146     cairo_set_source_rgba (cr, 60000.0/65535.0, 0.0, 0.0, 0.6);
1147     cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
1148     cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
1149     #else
1150     gc = gdk_gc_new(priv->pixmap);
1151     color.green = 0;
1152     color.blue = 0;
1153     color.red = 60000;
1154     gdk_gc_set_rgb_fg_color(gc, &color);
1155     gdk_gc_set_line_attributes(gc, lw, GDK_LINE_SOLID, GDK_CAP_ROUND, GDK_JOIN_ROUND);
1156     #endif
1157    
1158     map_x0 = priv->map_x - EXTRA_BORDER;
1159     map_y0 = priv->map_y - EXTRA_BORDER;
1160     for(list = trackpoint_list; list != NULL; list = list->next)
1161     {
1162     coord_t *tp = list->data;
1163    
1164     x = lon2pixel(priv->map_zoom, tp->rlon) - map_x0;
1165     y = lat2pixel(priv->map_zoom, tp->rlat) - map_y0;
1166    
1167     // first time through loop
1168     if (list == trackpoint_list) {
1169     #ifdef USE_CAIRO
1170     cairo_move_to(cr, x, y);
1171     #else
1172     last_x = x;
1173     last_y = y;
1174     #endif
1175     }
1176    
1177     #ifdef USE_CAIRO
1178     cairo_line_to(cr, x, y);
1179     #else
1180     gdk_draw_line (priv->pixmap, gc, x, y, last_x, last_y);
1181     last_x = x;
1182     last_y = y;
1183     #endif
1184    
1185     max_x = MAX(x,max_x);
1186     min_x = MIN(x,min_x);
1187     max_y = MAX(y,max_y);
1188     min_y = MIN(y,min_y);
1189     }
1190    
1191     gtk_widget_queue_draw_area (
1192     GTK_WIDGET(map),
1193     min_x - lw,
1194     min_y - lw,
1195     max_x + (lw * 2),
1196     max_y + (lw * 2));
1197    
1198     #ifdef USE_CAIRO
1199     cairo_stroke(cr);
1200     cairo_destroy(cr);
1201     #else
1202     g_object_unref(gc);
1203     #endif
1204     }
1205    
1206     /* Prints the gps trip history, and any other tracks */
1207     static void
1208     osm_gps_map_print_tracks (OsmGpsMap *map)
1209     {
1210     OsmGpsMapPrivate *priv = map->priv;
1211    
1212     if (priv->show_trip_history)
1213     osm_gps_map_print_track (map, priv->trip_history);
1214 harbaum 55
1215 harbaum 32 if (priv->tracks)
1216     {
1217     GSList* tmp = priv->tracks;
1218     while (tmp != NULL)
1219     {
1220     osm_gps_map_print_track (map, tmp->data);
1221     tmp = g_slist_next(tmp);
1222     }
1223     }
1224     }
1225    
1226 harbaum 55 static gboolean
1227     osm_gps_map_purge_cache_check(gpointer key, gpointer value, gpointer user)
1228 harbaum 32 {
1229 harbaum 55 return (((OsmCachedTile*)value)->redraw_cycle != ((OsmGpsMapPrivate*)user)->redraw_cycle);
1230 harbaum 32 }
1231    
1232     static void
1233     osm_gps_map_purge_cache (OsmGpsMap *map)
1234     {
1235 harbaum 55 OsmGpsMapPrivate *priv = map->priv;
1236 harbaum 32
1237 harbaum 55 if (g_hash_table_size (priv->tile_cache) < priv->max_tile_cache_size)
1238     return;
1239 harbaum 32
1240 harbaum 55 /* run through the cache, and remove the tiles which have not been used
1241     * during the last redraw operation */
1242     g_hash_table_foreach_remove(priv->tile_cache, osm_gps_map_purge_cache_check, priv);
1243 harbaum 32 }
1244    
1245 harbaum 63 static gboolean
1246 harbaum 32 osm_gps_map_map_redraw (OsmGpsMap *map)
1247     {
1248     OsmGpsMapPrivate *priv = map->priv;
1249    
1250     priv->idle_map_redraw = 0;
1251    
1252 harbaum 87 /* don't redraw the entire map while the OSD is doing */
1253     /* some animation or the like. This is to keep the animation */
1254     /* fluid */
1255     if (priv->osd->busy(priv->osd))
1256     return FALSE;
1257    
1258 harbaum 111 #ifdef DRAG_DEBUG
1259     printf("trying redraw\n");
1260     #endif
1261    
1262 harbaum 32 /* the motion_notify handler uses priv->pixmap to redraw the area; if we
1263     * change it while we are dragging, we will end up showing it in the wrong
1264     * place. This could be fixed by carefully recompute the coordinates, but
1265     * for now it's easier just to disable redrawing the map while dragging */
1266     if (priv->dragging)
1267     return FALSE;
1268    
1269 harbaum 111 /* undo all offsets that may have happened when dragging */
1270     priv->drag_mouse_dx = 0;
1271     priv->drag_mouse_dy = 0;
1272    
1273 harbaum 32 priv->redraw_cycle++;
1274    
1275     /* draw white background to initialise pixmap */
1276     gdk_draw_rectangle (
1277     priv->pixmap,
1278     GTK_WIDGET(map)->style->white_gc,
1279     TRUE,
1280     0, 0,
1281     GTK_WIDGET(map)->allocation.width + EXTRA_BORDER * 2,
1282     GTK_WIDGET(map)->allocation.height + EXTRA_BORDER * 2);
1283    
1284     osm_gps_map_fill_tiles_pixel(map);
1285    
1286     osm_gps_map_print_tracks(map);
1287     osm_gps_map_draw_gps_point(map);
1288     osm_gps_map_print_images(map);
1289 harbaum 73
1290 harbaum 111 #ifdef ENABLE_OSD
1291     /* OSD may contain a coordinate/scale, so we may have to re-render it */
1292     if(priv->osd && OSM_IS_GPS_MAP (priv->osd->widget))
1293     priv->osd->render (priv->osd);
1294     #endif
1295    
1296 harbaum 32 osm_gps_map_purge_cache(map);
1297     gtk_widget_queue_draw (GTK_WIDGET (map));
1298    
1299     return FALSE;
1300     }
1301    
1302     static void
1303     osm_gps_map_map_redraw_idle (OsmGpsMap *map)
1304     {
1305     OsmGpsMapPrivate *priv = map->priv;
1306    
1307     if (priv->idle_map_redraw == 0)
1308     priv->idle_map_redraw = g_idle_add ((GSourceFunc)osm_gps_map_map_redraw, map);
1309     }
1310    
1311 harbaum 77 #ifdef OSM_GPS_MAP_KEYS
1312     static gboolean
1313     on_window_key_press(GtkWidget *widget,
1314     GdkEventKey *event, OsmGpsMapPrivate *priv) {
1315     gboolean handled = FALSE;
1316     int step = GTK_WIDGET(widget)->allocation.width/OSM_GPS_MAP_SCROLL_STEP;
1317    
1318     // the map handles some keys on its own ...
1319     switch(event->keyval) {
1320     #ifdef OSM_GPS_MAP_KEY_FULLSCREEN
1321     case OSM_GPS_MAP_KEY_FULLSCREEN: {
1322     GtkWidget *toplevel = gtk_widget_get_toplevel(GTK_WIDGET(widget));
1323     if(!priv->fullscreen)
1324     gtk_window_fullscreen(GTK_WINDOW(toplevel));
1325     else
1326     gtk_window_unfullscreen(GTK_WINDOW(toplevel));
1327    
1328     priv->fullscreen = !priv->fullscreen;
1329     handled = TRUE;
1330     } break;
1331     #endif
1332    
1333     #ifdef OSM_GPS_MAP_KEY_ZOOMIN
1334     case OSM_GPS_MAP_KEY_ZOOMIN:
1335     osm_gps_map_set_zoom(OSM_GPS_MAP(widget), priv->map_zoom+1);
1336     handled = TRUE;
1337     break;
1338     #endif
1339    
1340     #ifdef OSM_GPS_MAP_KEY_ZOOMOUT
1341     case OSM_GPS_MAP_KEY_ZOOMOUT:
1342     osm_gps_map_set_zoom(OSM_GPS_MAP(widget), priv->map_zoom-1);
1343     handled = TRUE;
1344     break;
1345     #endif
1346    
1347     #ifdef OSM_GPS_MAP_KEY_UP
1348     case OSM_GPS_MAP_KEY_UP:
1349     priv->map_y -= step;
1350     priv->center_coord_set = FALSE;
1351     osm_gps_map_map_redraw_idle(OSM_GPS_MAP(widget));
1352     handled = TRUE;
1353     break;
1354     #endif
1355    
1356     #ifdef OSM_GPS_MAP_KEY_DOWN
1357     case OSM_GPS_MAP_KEY_DOWN:
1358     priv->map_y += step;
1359     priv->center_coord_set = FALSE;
1360     osm_gps_map_map_redraw_idle(OSM_GPS_MAP(widget));
1361     handled = TRUE;
1362     break;
1363     #endif
1364    
1365     #ifdef OSM_GPS_MAP_KEY_LEFT
1366     case OSM_GPS_MAP_KEY_LEFT:
1367     priv->map_x -= step;
1368     priv->center_coord_set = FALSE;
1369     osm_gps_map_map_redraw_idle(OSM_GPS_MAP(widget));
1370     handled = TRUE;
1371     break;
1372     #endif
1373    
1374     #ifdef OSM_GPS_MAP_KEY_RIGHT
1375     case OSM_GPS_MAP_KEY_RIGHT:
1376     priv->map_x += step;
1377     priv->center_coord_set = FALSE;
1378     osm_gps_map_map_redraw_idle(OSM_GPS_MAP(widget));
1379     handled = TRUE;
1380     break;
1381     #endif
1382    
1383     default:
1384     break;
1385     }
1386    
1387     return handled;
1388     }
1389     #endif
1390    
1391 harbaum 32 static void
1392     osm_gps_map_init (OsmGpsMap *object)
1393     {
1394     OsmGpsMapPrivate *priv;
1395    
1396     priv = G_TYPE_INSTANCE_GET_PRIVATE (object, OSM_TYPE_GPS_MAP, OsmGpsMapPrivate);
1397     object->priv = priv;
1398    
1399     priv->pixmap = NULL;
1400    
1401     priv->trip_history = NULL;
1402     priv->gps = g_new0(coord_t, 1);
1403     priv->gps_valid = FALSE;
1404 harbaum 97 priv->gps_heading = OSM_GPS_MAP_INVALID;
1405 harbaum 32
1406 harbaum 61 #ifdef ENABLE_OSD
1407 harbaum 73 priv->osd = NULL;
1408 harbaum 61 #endif
1409    
1410 harbaum 77 #ifdef OSM_GPS_MAP_BUTTON_FULLSCREEN
1411     priv->fullscreen = FALSE;
1412     #endif
1413    
1414 harbaum 32 priv->tracks = NULL;
1415     priv->images = NULL;
1416    
1417     priv->drag_counter = 0;
1418     priv->drag_mouse_dx = 0;
1419     priv->drag_mouse_dy = 0;
1420     priv->drag_start_mouse_x = 0;
1421     priv->drag_start_mouse_y = 0;
1422    
1423     priv->uri_format = 0;
1424     priv->the_google = FALSE;
1425    
1426 harbaum 55 priv->map_source = -1;
1427    
1428 harbaum 32 #ifndef LIBSOUP22
1429     //Change naumber of concurrent connections option?
1430 harbaum 89 priv->soup_session =
1431     soup_session_async_new_with_options(SOUP_SESSION_USER_AGENT,
1432     USER_AGENT, NULL);
1433 harbaum 32 #else
1434 harbaum 89 /* libsoup-2.2 has no special way to set the user agent, so we */
1435     /* set it seperately as an extra header field for each reuest */
1436 harbaum 32 priv->soup_session = soup_session_async_new();
1437     #endif
1438    
1439     //Hash table which maps tile d/l URIs to SoupMessage requests
1440     priv->tile_queue = g_hash_table_new (g_str_hash, g_str_equal);
1441    
1442     //Some mapping providers (Google) have varying degrees of tiles at multiple
1443     //zoom levels
1444     priv->missing_tiles = g_hash_table_new (g_str_hash, g_str_equal);
1445    
1446     /* memory cache for most recently used tiles */
1447     priv->tile_cache = g_hash_table_new_full (g_str_hash, g_str_equal,
1448     g_free, (GDestroyNotify)cached_tile_free);
1449     priv->max_tile_cache_size = 20;
1450    
1451     gtk_widget_add_events (GTK_WIDGET (object),
1452     GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
1453     GDK_POINTER_MOTION_MASK |
1454     GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1455     GTK_WIDGET_SET_FLAGS (object, GTK_CAN_FOCUS);
1456    
1457     g_log_set_handler (G_LOG_DOMAIN, G_LOG_LEVEL_MASK, my_log_handler, NULL);
1458    
1459 harbaum 77 #ifdef OSM_GPS_MAP_KEYS
1460     g_signal_connect(G_OBJECT(object), "key_press_event",
1461     G_CALLBACK(on_window_key_press), priv);
1462     #endif
1463 harbaum 32 }
1464    
1465 harbaum 91 static void
1466     osm_gps_map_setup(OsmGpsMapPrivate *priv) {
1467 harbaum 55 const char *uri;
1468 harbaum 32
1469 harbaum 55 //user can specify a map source ID, or a repo URI as the map source
1470     uri = osm_gps_map_source_get_repo_uri(OSM_GPS_MAP_SOURCE_NULL);
1471     if ( (priv->map_source == 0) || (strcmp(priv->repo_uri, uri) == 0) ) {
1472     g_debug("Using null source");
1473     priv->map_source = OSM_GPS_MAP_SOURCE_NULL;
1474    
1475     priv->null_tile = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, 256, 256);
1476     gdk_pixbuf_fill(priv->null_tile, 0xcccccc00);
1477     }
1478     else if (priv->map_source >= 0) {
1479     //check if the source given is valid
1480     uri = osm_gps_map_source_get_repo_uri(priv->map_source);
1481     if (uri) {
1482     g_debug("Setting map source from ID");
1483     g_free(priv->repo_uri);
1484    
1485     priv->repo_uri = g_strdup(uri);
1486     priv->image_format = g_strdup(
1487     osm_gps_map_source_get_image_format(priv->map_source));
1488     priv->max_zoom = osm_gps_map_source_get_max_zoom(priv->map_source);
1489     priv->min_zoom = osm_gps_map_source_get_min_zoom(priv->map_source);
1490     }
1491     }
1492    
1493 harbaum 82 const char *fname = osm_gps_map_source_get_friendly_name(priv->map_source);
1494     if(!fname) fname = "_unknown_";
1495 harbaum 32
1496 harbaum 89 if (priv->tile_dir) {
1497     //the new cachedir is the given cache dir + the friendly name of the repo_uri
1498     priv->cache_dir = g_strdup_printf("%s%c%s", priv->tile_dir, G_DIR_SEPARATOR, fname);
1499     g_debug("Adjusting cache dir %s -> %s", priv->tile_dir, priv->cache_dir);
1500 harbaum 32 }
1501 harbaum 91 }
1502 harbaum 32
1503 harbaum 91 static GObject *
1504     osm_gps_map_constructor (GType gtype, guint n_properties, GObjectConstructParam *properties)
1505     {
1506     //Always chain up to the parent constructor
1507     GObject *object =
1508     G_OBJECT_CLASS(osm_gps_map_parent_class)->constructor(gtype, n_properties, properties);
1509 harbaum 55
1510 harbaum 91 osm_gps_map_setup(OSM_GPS_MAP_PRIVATE(object));
1511    
1512     inspect_map_uri(OSM_GPS_MAP(object));
1513    
1514 harbaum 32 return object;
1515     }
1516    
1517     static void
1518     osm_gps_map_dispose (GObject *object)
1519     {
1520     OsmGpsMap *map = OSM_GPS_MAP(object);
1521     OsmGpsMapPrivate *priv = map->priv;
1522    
1523     if (priv->is_disposed)
1524     return;
1525    
1526     priv->is_disposed = TRUE;
1527    
1528     soup_session_abort(priv->soup_session);
1529     g_object_unref(priv->soup_session);
1530    
1531     g_hash_table_destroy(priv->tile_queue);
1532     g_hash_table_destroy(priv->missing_tiles);
1533     g_hash_table_destroy(priv->tile_cache);
1534    
1535     osm_gps_map_free_images(map);
1536    
1537     if(priv->pixmap)
1538     g_object_unref (priv->pixmap);
1539    
1540 harbaum 55 if (priv->null_tile)
1541     g_object_unref (priv->null_tile);
1542    
1543 harbaum 32 if(priv->gc_map)
1544     g_object_unref(priv->gc_map);
1545    
1546     if (priv->idle_map_redraw != 0)
1547     g_source_remove (priv->idle_map_redraw);
1548    
1549 harbaum 57 g_free(priv->gps);
1550 harbaum 65
1551 harbaum 61 #ifdef ENABLE_OSD
1552 harbaum 73 if(priv->osd)
1553     priv->osd->free(priv->osd);
1554 harbaum 75
1555     #ifdef OSD_DOUBLE_BUFFER
1556     if(priv->dbuf_pixmap)
1557     g_object_unref (priv->dbuf_pixmap);
1558 harbaum 61 #endif
1559 harbaum 75 #endif
1560 harbaum 61
1561 harbaum 32 G_OBJECT_CLASS (osm_gps_map_parent_class)->dispose (object);
1562     }
1563    
1564     static void
1565     osm_gps_map_finalize (GObject *object)
1566     {
1567     OsmGpsMap *map = OSM_GPS_MAP(object);
1568     OsmGpsMapPrivate *priv = map->priv;
1569    
1570 harbaum 89 if(priv->tile_dir)
1571     g_free(priv->tile_dir);
1572    
1573     if(priv->cache_dir)
1574     g_free(priv->cache_dir);
1575    
1576 harbaum 32 g_free(priv->repo_uri);
1577 harbaum 55 g_free(priv->image_format);
1578 harbaum 32
1579     osm_gps_map_free_trip(map);
1580     osm_gps_map_free_tracks(map);
1581    
1582     G_OBJECT_CLASS (osm_gps_map_parent_class)->finalize (object);
1583     }
1584    
1585     static void
1586     osm_gps_map_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
1587     {
1588     g_return_if_fail (OSM_IS_GPS_MAP (object));
1589     OsmGpsMap *map = OSM_GPS_MAP(object);
1590     OsmGpsMapPrivate *priv = map->priv;
1591    
1592     switch (prop_id)
1593     {
1594     case PROP_AUTO_CENTER:
1595     priv->map_auto_center = g_value_get_boolean (value);
1596     break;
1597     case PROP_RECORD_TRIP_HISTORY:
1598     priv->record_trip_history = g_value_get_boolean (value);
1599     break;
1600     case PROP_SHOW_TRIP_HISTORY:
1601     priv->show_trip_history = g_value_get_boolean (value);
1602     break;
1603     case PROP_AUTO_DOWNLOAD:
1604     priv->map_auto_download = g_value_get_boolean (value);
1605     break;
1606     case PROP_REPO_URI:
1607     priv->repo_uri = g_value_dup_string (value);
1608     break;
1609     case PROP_PROXY_URI:
1610     if ( g_value_get_string(value) ) {
1611     priv->proxy_uri = g_value_dup_string (value);
1612     g_debug("Setting proxy server: %s", priv->proxy_uri);
1613 harbaum 55
1614 harbaum 32 #ifndef LIBSOUP22
1615     GValue val = {0};
1616 harbaum 55
1617 harbaum 32 SoupURI* uri = soup_uri_new(priv->proxy_uri);
1618     g_value_init(&val, SOUP_TYPE_URI);
1619     g_value_take_boxed(&val, uri);
1620    
1621     g_object_set_property(G_OBJECT(priv->soup_session),SOUP_SESSION_PROXY_URI,&val);
1622     #else
1623     SoupUri* uri = soup_uri_new(priv->proxy_uri);
1624     g_object_set(G_OBJECT(priv->soup_session), SOUP_SESSION_PROXY_URI, uri, NULL);
1625     #endif
1626     } else
1627     priv->proxy_uri = NULL;
1628    
1629     break;
1630     case PROP_TILE_CACHE_DIR:
1631 harbaum 55 if ( g_value_get_string(value) )
1632 harbaum 89 priv->tile_dir = g_value_dup_string (value);
1633 harbaum 32 break;
1634     case PROP_ZOOM:
1635     priv->map_zoom = g_value_get_int (value);
1636     break;
1637     case PROP_MAX_ZOOM:
1638     priv->max_zoom = g_value_get_int (value);
1639     break;
1640     case PROP_MIN_ZOOM:
1641     priv->min_zoom = g_value_get_int (value);
1642     break;
1643     case PROP_MAP_X:
1644     priv->map_x = g_value_get_int (value);
1645     priv->center_coord_set = FALSE;
1646     break;
1647     case PROP_MAP_Y:
1648     priv->map_y = g_value_get_int (value);
1649     priv->center_coord_set = FALSE;
1650     break;
1651     case PROP_GPS_TRACK_WIDTH:
1652     priv->ui_gps_track_width = g_value_get_int (value);
1653     break;
1654     case PROP_GPS_POINT_R1:
1655     priv->ui_gps_point_inner_radius = g_value_get_int (value);
1656     break;
1657     case PROP_GPS_POINT_R2:
1658     priv->ui_gps_point_outer_radius = g_value_get_int (value);
1659     break;
1660 harbaum 89 case PROP_MAP_SOURCE: {
1661     gint old = priv->map_source;
1662 harbaum 55 priv->map_source = g_value_get_int (value);
1663 harbaum 89 if(old >= OSM_GPS_MAP_SOURCE_NULL &&
1664     priv->map_source != old &&
1665     priv->map_source >= OSM_GPS_MAP_SOURCE_NULL &&
1666     priv->map_source <= OSM_GPS_MAP_SOURCE_LAST) {
1667    
1668     /* we now have to switch the entire map */
1669    
1670     /* flush the ram cache */
1671     g_hash_table_remove_all(priv->tile_cache);
1672    
1673 harbaum 91 osm_gps_map_setup(priv);
1674 harbaum 89
1675 harbaum 91 inspect_map_uri(map);
1676 harbaum 89
1677     /* adjust zoom if necessary */
1678     if(priv->map_zoom > priv->max_zoom)
1679     osm_gps_map_set_zoom(map, priv->max_zoom);
1680    
1681     if(priv->map_zoom < priv->min_zoom)
1682     osm_gps_map_set_zoom(map, priv->min_zoom);
1683    
1684     } } break;
1685 harbaum 55 case PROP_IMAGE_FORMAT:
1686     priv->image_format = g_value_dup_string (value);
1687     break;
1688 harbaum 32 default:
1689     G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1690     break;
1691     }
1692     }
1693    
1694     static void
1695     osm_gps_map_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
1696     {
1697     g_return_if_fail (OSM_IS_GPS_MAP (object));
1698     float lat,lon;
1699     OsmGpsMap *map = OSM_GPS_MAP(object);
1700     OsmGpsMapPrivate *priv = map->priv;
1701    
1702     switch (prop_id)
1703     {
1704     case PROP_AUTO_CENTER:
1705     g_value_set_boolean(value, priv->map_auto_center);
1706     break;
1707     case PROP_RECORD_TRIP_HISTORY:
1708     g_value_set_boolean(value, priv->record_trip_history);
1709     break;
1710     case PROP_SHOW_TRIP_HISTORY:
1711     g_value_set_boolean(value, priv->show_trip_history);
1712     break;
1713     case PROP_AUTO_DOWNLOAD:
1714     g_value_set_boolean(value, priv->map_auto_download);
1715     break;
1716     case PROP_REPO_URI:
1717     g_value_set_string(value, priv->repo_uri);
1718     break;
1719     case PROP_PROXY_URI:
1720     g_value_set_string(value, priv->proxy_uri);
1721     break;
1722     case PROP_TILE_CACHE_DIR:
1723     g_value_set_string(value, priv->cache_dir);
1724     break;
1725     case PROP_ZOOM:
1726     g_value_set_int(value, priv->map_zoom);
1727     break;
1728     case PROP_MAX_ZOOM:
1729     g_value_set_int(value, priv->max_zoom);
1730     break;
1731     case PROP_MIN_ZOOM:
1732     g_value_set_int(value, priv->min_zoom);
1733     break;
1734     case PROP_LATITUDE:
1735     lat = pixel2lat(priv->map_zoom,
1736     priv->map_y + (GTK_WIDGET(map)->allocation.height / 2));
1737     g_value_set_float(value, rad2deg(lat));
1738     break;
1739     case PROP_LONGITUDE:
1740     lon = pixel2lon(priv->map_zoom,
1741     priv->map_x + (GTK_WIDGET(map)->allocation.width / 2));
1742     g_value_set_float(value, rad2deg(lon));
1743     break;
1744     case PROP_MAP_X:
1745     g_value_set_int(value, priv->map_x);
1746     break;
1747     case PROP_MAP_Y:
1748     g_value_set_int(value, priv->map_y);
1749     break;
1750     case PROP_TILES_QUEUED:
1751     g_value_set_int(value, g_hash_table_size(priv->tile_queue));
1752     break;
1753     case PROP_GPS_TRACK_WIDTH:
1754     g_value_set_int(value, priv->ui_gps_track_width);
1755     break;
1756     case PROP_GPS_POINT_R1:
1757     g_value_set_int(value, priv->ui_gps_point_inner_radius);
1758     break;
1759     case PROP_GPS_POINT_R2:
1760     g_value_set_int(value, priv->ui_gps_point_outer_radius);
1761     break;
1762 harbaum 55 case PROP_MAP_SOURCE:
1763     g_value_set_int(value, priv->map_source);
1764     break;
1765     case PROP_IMAGE_FORMAT:
1766     g_value_set_string(value, priv->image_format);
1767     break;
1768 harbaum 32 default:
1769     G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1770     break;
1771     }
1772     }
1773    
1774     static gboolean
1775 harbaum 55 osm_gps_map_scroll_event (GtkWidget *widget, GdkEventScroll *event)
1776 harbaum 32 {
1777     OsmGpsMap *map = OSM_GPS_MAP(widget);
1778     OsmGpsMapPrivate *priv = map->priv;
1779    
1780     if (event->direction == GDK_SCROLL_UP)
1781     {
1782     osm_gps_map_set_zoom(map, priv->map_zoom+1);
1783     }
1784     else
1785     {
1786     osm_gps_map_set_zoom(map, priv->map_zoom-1);
1787     }
1788    
1789     return FALSE;
1790     }
1791    
1792     static gboolean
1793     osm_gps_map_button_press (GtkWidget *widget, GdkEventButton *event)
1794     {
1795     OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget);
1796    
1797 harbaum 63 #ifdef ENABLE_OSD
1798 harbaum 66 /* pressed inside OSD control? */
1799 harbaum 73 if(priv->osd) {
1800 harbaum 114 osd_button_t but =
1801     priv->osd->check(priv->osd, TRUE, event->x, event->y);
1802    
1803 harbaum 73 if(but != OSD_NONE)
1804     {
1805 harbaum 114 int step =
1806     GTK_WIDGET(widget)->allocation.width/OSM_GPS_MAP_SCROLL_STEP;
1807 harbaum 73 priv->drag_counter = -1;
1808    
1809     switch(but) {
1810     case OSD_UP:
1811 harbaum 77 priv->map_y -= step;
1812 harbaum 73 priv->center_coord_set = FALSE;
1813 harbaum 95 g_object_set(G_OBJECT(widget), "auto-center", FALSE, NULL);
1814 harbaum 77 osm_gps_map_map_redraw_idle(OSM_GPS_MAP(widget));
1815 harbaum 73 break;
1816 harbaum 66
1817 harbaum 73 case OSD_DOWN:
1818 harbaum 77 priv->map_y += step;
1819 harbaum 73 priv->center_coord_set = FALSE;
1820 harbaum 95 g_object_set(G_OBJECT(widget), "auto-center", FALSE, NULL);
1821 harbaum 77 osm_gps_map_map_redraw_idle(OSM_GPS_MAP(widget));
1822 harbaum 73 break;
1823 harbaum 66
1824 harbaum 73 case OSD_LEFT:
1825 harbaum 77 priv->map_x -= step;
1826 harbaum 73 priv->center_coord_set = FALSE;
1827 harbaum 95 g_object_set(G_OBJECT(widget), "auto-center", FALSE, NULL);
1828 harbaum 77 osm_gps_map_map_redraw_idle(OSM_GPS_MAP(widget));
1829 harbaum 73 break;
1830    
1831     case OSD_RIGHT:
1832 harbaum 77 priv->map_x += step;
1833 harbaum 73 priv->center_coord_set = FALSE;
1834 harbaum 95 g_object_set(G_OBJECT(widget), "auto-center", FALSE, NULL);
1835 harbaum 77 osm_gps_map_map_redraw_idle(OSM_GPS_MAP(widget));
1836 harbaum 73 break;
1837    
1838     case OSD_IN:
1839     osm_gps_map_set_zoom(OSM_GPS_MAP(widget), priv->map_zoom+1);
1840     break;
1841    
1842     case OSD_OUT:
1843     osm_gps_map_set_zoom(OSM_GPS_MAP(widget), priv->map_zoom-1);
1844     break;
1845    
1846     default:
1847     /* all custom buttons are forwarded to the application */
1848     if(priv->osd->cb)
1849     priv->osd->cb(but, priv->osd->data);
1850     break;
1851     }
1852    
1853     return FALSE;
1854 harbaum 63 }
1855     }
1856     #endif
1857    
1858 harbaum 66 priv->drag_counter = 0;
1859     priv->drag_start_mouse_x = (int) event->x;
1860     priv->drag_start_mouse_y = (int) event->y;
1861     priv->drag_start_map_x = priv->map_x;
1862     priv->drag_start_map_y = priv->map_y;
1863    
1864     return FALSE;
1865     }
1866    
1867     static gboolean
1868     osm_gps_map_button_release (GtkWidget *widget, GdkEventButton *event)
1869     {
1870     OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget);
1871    
1872 harbaum 32 if (priv->dragging)
1873     {
1874     priv->dragging = FALSE;
1875    
1876     priv->map_x = priv->drag_start_map_x;
1877     priv->map_y = priv->drag_start_map_y;
1878    
1879     priv->map_x += (priv->drag_start_mouse_x - (int) event->x);
1880     priv->map_y += (priv->drag_start_mouse_y - (int) event->y);
1881    
1882     priv->center_coord_set = FALSE;
1883    
1884     osm_gps_map_map_redraw_idle(OSM_GPS_MAP(widget));
1885     }
1886 harbaum 114 #ifdef ENABLE_OSD
1887     /* pressed inside OSD control? */
1888     else if(priv->osd)
1889     priv->osd->check(priv->osd, FALSE, event->x, event->y);
1890     #endif
1891 harbaum 32
1892 harbaum 114
1893 harbaum 111 #ifdef DRAG_DEBUG
1894     printf("dragging done\n");
1895     #endif
1896    
1897 harbaum 58 priv->drag_counter = -1;
1898 harbaum 32
1899     return FALSE;
1900     }
1901    
1902     static gboolean
1903 harbaum 68 osm_gps_map_expose (GtkWidget *widget, GdkEventExpose *event);
1904    
1905     static gboolean
1906 harbaum 32 osm_gps_map_motion_notify (GtkWidget *widget, GdkEventMotion *event)
1907     {
1908     int x, y;
1909     GdkModifierType state;
1910     OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget);
1911    
1912     if (event->is_hint)
1913     gdk_window_get_pointer (event->window, &x, &y, &state);
1914     else
1915     {
1916     x = event->x;
1917     y = event->y;
1918     state = event->state;
1919     }
1920    
1921     // are we being dragged
1922     if (!(state & GDK_BUTTON1_MASK))
1923     return FALSE;
1924    
1925 harbaum 58 if (priv->drag_counter < 0)
1926     return FALSE;
1927    
1928 harbaum 32 priv->drag_counter++;
1929    
1930     // we havent dragged more than 6 pixels
1931     if (priv->drag_counter < 6)
1932     return FALSE;
1933    
1934 harbaum 75 #ifdef OSM_GPS_MAP_REFRESH
1935 harbaum 68 /* reduce update frequency on maemo to keep screen update fluid */
1936     static guint32 last_time = 0;
1937    
1938 harbaum 75 if(event->time - last_time < (1000/OSM_GPS_MAP_REFRESH)) return FALSE;
1939 harbaum 68 last_time = event->time;
1940     #endif
1941    
1942 harbaum 32 priv->dragging = TRUE;
1943    
1944     if (priv->map_auto_center)
1945     g_object_set(G_OBJECT(widget), "auto-center", FALSE, NULL);
1946    
1947     priv->drag_mouse_dx = x - priv->drag_start_mouse_x;
1948     priv->drag_mouse_dy = y - priv->drag_start_mouse_y;
1949    
1950 harbaum 68 osm_gps_map_expose (widget, NULL);
1951    
1952     return FALSE;
1953     }
1954    
1955     static gboolean
1956     osm_gps_map_configure (GtkWidget *widget, GdkEventConfigure *event)
1957     {
1958     OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget);
1959    
1960     /* create pixmap */
1961     if (priv->pixmap)
1962     g_object_unref (priv->pixmap);
1963    
1964     priv->pixmap = gdk_pixmap_new (
1965 harbaum 75 widget->window,
1966     widget->allocation.width + EXTRA_BORDER * 2,
1967     widget->allocation.height + EXTRA_BORDER * 2,
1968     -1);
1969 harbaum 68
1970 harbaum 73 #ifdef ENABLE_OSD
1971 harbaum 75
1972     #ifdef OSD_DOUBLE_BUFFER
1973     if (priv->dbuf_pixmap)
1974     g_object_unref (priv->dbuf_pixmap);
1975    
1976     priv->dbuf_pixmap = gdk_pixmap_new (
1977     widget->window,
1978     widget->allocation.width,
1979     widget->allocation.height,
1980     -1);
1981     #endif
1982    
1983 harbaum 73 /* the osd needs some references to map internal objects */
1984     if(priv->osd)
1985     priv->osd->widget = widget;
1986     #endif
1987    
1988 harbaum 68 /* and gc, used for clipping (I think......) */
1989     if(priv->gc_map)
1990     g_object_unref(priv->gc_map);
1991    
1992     priv->gc_map = gdk_gc_new(priv->pixmap);
1993    
1994     osm_gps_map_map_redraw(OSM_GPS_MAP(widget));
1995    
1996     return FALSE;
1997     }
1998    
1999     static gboolean
2000     osm_gps_map_expose (GtkWidget *widget, GdkEventExpose *event)
2001     {
2002     OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget);
2003    
2004 harbaum 75 #if defined(ENABLE_OSD) && defined(OSD_DOUBLE_BUFFER)
2005     GdkDrawable *drawable = priv->dbuf_pixmap;
2006     #else
2007     GdkDrawable *drawable = widget->window;
2008     #endif
2009    
2010 harbaum 111 #ifdef DRAG_DEBUG
2011     printf("expose, map %d/%d\n", priv->map_x, priv->map_y);
2012     #endif
2013    
2014     if (!priv->drag_mouse_dx && !priv->drag_mouse_dy && event)
2015 harbaum 32 {
2016 harbaum 111 #ifdef DRAG_DEBUG
2017     printf(" dragging = %d, event = %p\n", priv->dragging, event);
2018     #endif
2019    
2020 harbaum 83 gdk_draw_drawable (drawable,
2021     widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
2022     priv->pixmap,
2023     event->area.x + EXTRA_BORDER, event->area.y + EXTRA_BORDER,
2024     event->area.x, event->area.y,
2025     event->area.width, event->area.height);
2026 harbaum 32 }
2027 harbaum 83 else
2028 harbaum 32 {
2029 harbaum 111 #ifdef DRAG_DEBUG
2030     printf(" drag_mouse %d/%d\n",
2031     priv->drag_mouse_dx - EXTRA_BORDER,
2032     priv->drag_mouse_dy - EXTRA_BORDER);
2033     #endif
2034    
2035 harbaum 83 gdk_draw_drawable (drawable,
2036     widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
2037     priv->pixmap,
2038     0,0,
2039     priv->drag_mouse_dx - EXTRA_BORDER,
2040     priv->drag_mouse_dy - EXTRA_BORDER,
2041     -1,-1);
2042    
2043     //Paint white outside of the map if dragging. Its less
2044     //ugly than painting the corrupted map
2045     if(priv->drag_mouse_dx>EXTRA_BORDER) {
2046     gdk_draw_rectangle (drawable,
2047     widget->style->white_gc,
2048     TRUE,
2049     0, 0,
2050     priv->drag_mouse_dx - EXTRA_BORDER,
2051     widget->allocation.height);
2052     }
2053     else if (-priv->drag_mouse_dx > EXTRA_BORDER)
2054     {
2055     gdk_draw_rectangle (drawable,
2056     widget->style->white_gc,
2057     TRUE,
2058     priv->drag_mouse_dx + widget->allocation.width + EXTRA_BORDER, 0,
2059     -priv->drag_mouse_dx - EXTRA_BORDER,
2060     widget->allocation.height);
2061     }
2062    
2063     if (priv->drag_mouse_dy>EXTRA_BORDER) {
2064     gdk_draw_rectangle (drawable,
2065     widget->style->white_gc,
2066     TRUE,
2067     0, 0,
2068     widget->allocation.width,
2069     priv->drag_mouse_dy - EXTRA_BORDER);
2070     }
2071     else if (-priv->drag_mouse_dy > EXTRA_BORDER)
2072     {
2073     gdk_draw_rectangle (drawable,
2074     widget->style->white_gc,
2075     TRUE,
2076     0, priv->drag_mouse_dy + widget->allocation.height + EXTRA_BORDER,
2077     widget->allocation.width,
2078     -priv->drag_mouse_dy - EXTRA_BORDER);
2079     }
2080 harbaum 32 }
2081 harbaum 75
2082     #ifdef ENABLE_OSD
2083     /* draw new OSD */
2084     if(priv->osd)
2085     priv->osd->draw (priv->osd, drawable);
2086    
2087     #ifdef OSD_DOUBLE_BUFFER
2088     gdk_draw_drawable (widget->window,
2089 harbaum 32 widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
2090 harbaum 75 priv->dbuf_pixmap,
2091     0,0,0,0,-1,-1);
2092 harbaum 68 #endif
2093 harbaum 75
2094     #endif
2095    
2096 harbaum 32 return FALSE;
2097     }
2098    
2099     static void
2100     osm_gps_map_class_init (OsmGpsMapClass *klass)
2101     {
2102     GObjectClass* object_class = G_OBJECT_CLASS (klass);
2103     GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
2104    
2105     g_type_class_add_private (klass, sizeof (OsmGpsMapPrivate));
2106    
2107     object_class->dispose = osm_gps_map_dispose;
2108     object_class->finalize = osm_gps_map_finalize;
2109     object_class->constructor = osm_gps_map_constructor;
2110     object_class->set_property = osm_gps_map_set_property;
2111     object_class->get_property = osm_gps_map_get_property;
2112    
2113     widget_class->expose_event = osm_gps_map_expose;
2114     widget_class->configure_event = osm_gps_map_configure;
2115     widget_class->button_press_event = osm_gps_map_button_press;
2116     widget_class->button_release_event = osm_gps_map_button_release;
2117     widget_class->motion_notify_event = osm_gps_map_motion_notify;
2118 harbaum 55 widget_class->scroll_event = osm_gps_map_scroll_event;
2119 harbaum 32
2120     g_object_class_install_property (object_class,
2121     PROP_AUTO_CENTER,
2122     g_param_spec_boolean ("auto-center",
2123     "auto center",
2124     "map auto center",
2125     TRUE,
2126     G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
2127    
2128     g_object_class_install_property (object_class,
2129     PROP_RECORD_TRIP_HISTORY,
2130     g_param_spec_boolean ("record-trip-history",
2131     "record trip history",
2132     "should all gps points be recorded in a trip history",
2133     TRUE,
2134     G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
2135    
2136     g_object_class_install_property (object_class,
2137     PROP_SHOW_TRIP_HISTORY,
2138     g_param_spec_boolean ("show-trip-history",
2139     "show trip history",
2140     "should the recorded trip history be shown on the map",
2141     TRUE,
2142     G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
2143    
2144     g_object_class_install_property (object_class,
2145     PROP_AUTO_DOWNLOAD,
2146     g_param_spec_boolean ("auto-download",
2147     "auto download",
2148     "map auto download",
2149     TRUE,
2150     G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
2151    
2152     g_object_class_install_property (object_class,
2153     PROP_REPO_URI,
2154     g_param_spec_string ("repo-uri",
2155     "repo uri",
2156 harbaum 55 "map source tile repository uri",
2157     OSM_REPO_URI,
2158 harbaum 32 G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
2159    
2160 harbaum 55 g_object_class_install_property (object_class,
2161 harbaum 32 PROP_PROXY_URI,
2162     g_param_spec_string ("proxy-uri",
2163     "proxy uri",
2164     "http proxy uri on NULL",
2165     NULL,
2166     G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
2167    
2168     g_object_class_install_property (object_class,
2169     PROP_TILE_CACHE_DIR,
2170     g_param_spec_string ("tile-cache",
2171     "tile cache",
2172     "osm local tile cache dir",
2173 harbaum 55 NULL,
2174 harbaum 32 G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
2175    
2176     g_object_class_install_property (object_class,
2177     PROP_ZOOM,
2178     g_param_spec_int ("zoom",
2179     "zoom",
2180     "zoom level",
2181     MIN_ZOOM, /* minimum property value */
2182     MAX_ZOOM, /* maximum property value */
2183     3,
2184     G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
2185    
2186     g_object_class_install_property (object_class,
2187     PROP_MAX_ZOOM,
2188     g_param_spec_int ("max-zoom",
2189     "max zoom",
2190     "maximum zoom level",
2191     MIN_ZOOM, /* minimum property value */
2192     MAX_ZOOM, /* maximum property value */
2193 harbaum 55 OSM_MAX_ZOOM,
2194 harbaum 32 G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
2195    
2196     g_object_class_install_property (object_class,
2197     PROP_MIN_ZOOM,
2198     g_param_spec_int ("min-zoom",
2199     "min zoom",
2200     "minimum zoom level",
2201     MIN_ZOOM, /* minimum property value */
2202     MAX_ZOOM, /* maximum property value */
2203 harbaum 55 OSM_MIN_ZOOM,
2204 harbaum 32 G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
2205    
2206     g_object_class_install_property (object_class,
2207     PROP_LATITUDE,
2208     g_param_spec_float ("latitude",
2209     "latitude",
2210     "latitude in degrees",
2211     -90.0, /* minimum property value */
2212     90.0, /* maximum property value */
2213     0,
2214     G_PARAM_READABLE));
2215    
2216     g_object_class_install_property (object_class,
2217     PROP_LONGITUDE,
2218     g_param_spec_float ("longitude",
2219     "longitude",
2220     "longitude in degrees",
2221     -180.0, /* minimum property value */
2222     180.0, /* maximum property value */
2223     0,
2224     G_PARAM_READABLE));
2225    
2226     g_object_class_install_property (object_class,
2227     PROP_MAP_X,
2228     g_param_spec_int ("map-x",
2229     "map-x",
2230     "initial map x location",
2231     G_MININT, /* minimum property value */
2232     G_MAXINT, /* maximum property value */
2233     890,
2234     G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
2235    
2236     g_object_class_install_property (object_class,
2237     PROP_MAP_Y,
2238     g_param_spec_int ("map-y",
2239     "map-y",
2240     "initial map y location",
2241     G_MININT, /* minimum property value */
2242     G_MAXINT, /* maximum property value */
2243     515,
2244     G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
2245    
2246     g_object_class_install_property (object_class,
2247     PROP_TILES_QUEUED,
2248     g_param_spec_int ("tiles-queued",
2249     "tiles-queued",
2250     "number of tiles currently waiting to download",
2251     G_MININT, /* minimum property value */
2252     G_MAXINT, /* maximum property value */
2253     0,
2254     G_PARAM_READABLE));
2255    
2256     g_object_class_install_property (object_class,
2257     PROP_GPS_TRACK_WIDTH,
2258     g_param_spec_int ("gps-track-width",
2259     "gps-track-width",
2260     "width of the lines drawn for the gps track",
2261     1, /* minimum property value */
2262     G_MAXINT, /* maximum property value */
2263     4,
2264     G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
2265    
2266     g_object_class_install_property (object_class,
2267     PROP_GPS_POINT_R1,
2268     g_param_spec_int ("gps-track-point-radius",
2269     "gps-track-point-radius",
2270     "radius of the gps point inner circle",
2271     0, /* minimum property value */
2272     G_MAXINT, /* maximum property value */
2273 harbaum 66 10,
2274 harbaum 32 G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
2275    
2276     g_object_class_install_property (object_class,
2277     PROP_GPS_POINT_R2,
2278     g_param_spec_int ("gps-track-highlight-radius",
2279     "gps-track-highlight-radius",
2280     "radius of the gps point highlight circle",
2281     0, /* minimum property value */
2282     G_MAXINT, /* maximum property value */
2283     20,
2284     G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
2285    
2286 harbaum 55 g_object_class_install_property (object_class,
2287     PROP_MAP_SOURCE,
2288     g_param_spec_int ("map-source",
2289     "map source",
2290     "map source ID",
2291     -1, /* minimum property value */
2292     G_MAXINT, /* maximum property value */
2293     -1,
2294 harbaum 89 G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
2295 harbaum 55
2296     g_object_class_install_property (object_class,
2297     PROP_IMAGE_FORMAT,
2298     g_param_spec_string ("image-format",
2299     "image format",
2300     "map source tile repository image format (jpg, png)",
2301     OSM_IMAGE_FORMAT,
2302     G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
2303 harbaum 32 }
2304    
2305 harbaum 55 const char*
2306     osm_gps_map_source_get_friendly_name(OsmGpsMapSource_t source)
2307     {
2308     switch(source)
2309     {
2310     case OSM_GPS_MAP_SOURCE_NULL:
2311     return "None";
2312     case OSM_GPS_MAP_SOURCE_OPENSTREETMAP:
2313 harbaum 91 return "OpenStreetMap I";
2314 harbaum 55 case OSM_GPS_MAP_SOURCE_OPENSTREETMAP_RENDERER:
2315 harbaum 91 return "OpenStreetMap II";
2316 harbaum 84 case OSM_GPS_MAP_SOURCE_OPENCYCLEMAP:
2317     return "OpenCycleMap";
2318 harbaum 92 case OSM_GPS_MAP_SOURCE_OSMC_TRAILS:
2319     return "OSMC Trails";
2320 harbaum 55 case OSM_GPS_MAP_SOURCE_MAPS_FOR_FREE:
2321     return "Maps-For-Free";
2322     case OSM_GPS_MAP_SOURCE_GOOGLE_STREET:
2323     return "Google Maps";
2324     case OSM_GPS_MAP_SOURCE_GOOGLE_SATELLITE:
2325     return "Google Satellite";
2326     case OSM_GPS_MAP_SOURCE_GOOGLE_HYBRID:
2327     return "Google Hybrid";
2328     case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_STREET:
2329     return "Virtual Earth";
2330     case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_SATELLITE:
2331     return "Virtual Earth Satellite";
2332     case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_HYBRID:
2333     return "Virtual Earth Hybrid";
2334     case OSM_GPS_MAP_SOURCE_YAHOO_STREET:
2335     return "Yahoo Maps";
2336     case OSM_GPS_MAP_SOURCE_YAHOO_SATELLITE:
2337     return "Yahoo Satellite";
2338     case OSM_GPS_MAP_SOURCE_YAHOO_HYBRID:
2339     return "Yahoo Hybrid";
2340     default:
2341     return NULL;
2342     }
2343     return NULL;
2344     }
2345    
2346     //http://www.internettablettalk.com/forums/showthread.php?t=5209
2347     //https://garage.maemo.org/plugins/scmsvn/viewcvs.php/trunk/src/maps.c?root=maemo-mapper&view=markup
2348     //http://www.ponies.me.uk/maps/GoogleTileUtils.java
2349     //http://www.mgmaps.com/cache/MapTileCacher.perl
2350     const char*
2351     osm_gps_map_source_get_repo_uri(OsmGpsMapSource_t source)
2352     {
2353     switch(source)
2354     {
2355     case OSM_GPS_MAP_SOURCE_NULL:
2356     return "none://";
2357     case OSM_GPS_MAP_SOURCE_OPENSTREETMAP:
2358     return OSM_REPO_URI;
2359     case OSM_GPS_MAP_SOURCE_OPENSTREETMAP_RENDERER:
2360     return "http://tah.openstreetmap.org/Tiles/tile/#Z/#X/#Y.png";
2361 harbaum 84 case OSM_GPS_MAP_SOURCE_OPENCYCLEMAP:
2362     return "http://c.andy.sandbox.cloudmade.com/tiles/cycle/#Z/#X/#Y.png";
2363 harbaum 92 case OSM_GPS_MAP_SOURCE_OSMC_TRAILS:
2364     return "http://topo.geofabrik.de/trails/#Z/#X/#Y.png";
2365 harbaum 55 case OSM_GPS_MAP_SOURCE_MAPS_FOR_FREE:
2366     return "http://maps-for-free.com/layer/relief/z#Z/row#Y/#Z_#X-#Y.jpg";
2367     case OSM_GPS_MAP_SOURCE_GOOGLE_STREET:
2368     return "http://mt#R.google.com/vt/v=w2.97&x=#X&y=#Y&z=#Z";
2369     case OSM_GPS_MAP_SOURCE_GOOGLE_SATELLITE:
2370     return "http://khm#R.google.com/kh?n=404&v=3&t=#Q";
2371     case OSM_GPS_MAP_SOURCE_GOOGLE_HYBRID:
2372     return NULL; /* No longer working "http://mt#R.google.com/mt?n=404&v=w2t.99&x=#X&y=#Y&zoom=#S" */
2373     case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_STREET:
2374     return "http://a#R.ortho.tiles.virtualearth.net/tiles/r#W.jpeg?g=50";
2375     case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_SATELLITE:
2376     return "http://a#R.ortho.tiles.virtualearth.net/tiles/a#W.jpeg?g=50";
2377     case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_HYBRID:
2378     return "http://a#R.ortho.tiles.virtualearth.net/tiles/h#W.jpeg?g=50";
2379     case OSM_GPS_MAP_SOURCE_YAHOO_STREET:
2380     case OSM_GPS_MAP_SOURCE_YAHOO_SATELLITE:
2381     case OSM_GPS_MAP_SOURCE_YAHOO_HYBRID:
2382     /* TODO: Implement signed Y, aka U
2383     * http://us.maps3.yimg.com/aerial.maps.yimg.com/ximg?v=1.7&t=a&s=256&x=%d&y=%-d&z=%d
2384     * x = tilex,
2385     * y = (1 << (MAX_ZOOM - zoom)) - tiley - 1,
2386     * z = zoom - (MAX_ZOOM - 17));
2387     */
2388     return NULL;
2389     default:
2390     return NULL;
2391     }
2392     return NULL;
2393     }
2394    
2395     const char *
2396     osm_gps_map_source_get_image_format(OsmGpsMapSource_t source)
2397     {
2398     switch(source) {
2399     case OSM_GPS_MAP_SOURCE_NULL:
2400     case OSM_GPS_MAP_SOURCE_OPENSTREETMAP:
2401     case OSM_GPS_MAP_SOURCE_OPENSTREETMAP_RENDERER:
2402 harbaum 84 case OSM_GPS_MAP_SOURCE_OPENCYCLEMAP:
2403 harbaum 92 case OSM_GPS_MAP_SOURCE_OSMC_TRAILS:
2404 harbaum 55 return "png";
2405 harbaum 89 case OSM_GPS_MAP_SOURCE_MAPS_FOR_FREE:
2406 harbaum 55 case OSM_GPS_MAP_SOURCE_GOOGLE_STREET:
2407 harbaum 89 case OSM_GPS_MAP_SOURCE_GOOGLE_SATELLITE:
2408 harbaum 55 case OSM_GPS_MAP_SOURCE_GOOGLE_HYBRID:
2409     case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_STREET:
2410     case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_SATELLITE:
2411     case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_HYBRID:
2412     case OSM_GPS_MAP_SOURCE_YAHOO_STREET:
2413     case OSM_GPS_MAP_SOURCE_YAHOO_SATELLITE:
2414     case OSM_GPS_MAP_SOURCE_YAHOO_HYBRID:
2415     return "jpg";
2416     default:
2417     return "bin";
2418     }
2419     return "bin";
2420     }
2421    
2422    
2423     int
2424     osm_gps_map_source_get_min_zoom(OsmGpsMapSource_t source)
2425     {
2426     return 1;
2427     }
2428    
2429     int
2430     osm_gps_map_source_get_max_zoom(OsmGpsMapSource_t source)
2431     {
2432     switch(source) {
2433     case OSM_GPS_MAP_SOURCE_NULL:
2434     return 18;
2435     case OSM_GPS_MAP_SOURCE_OPENSTREETMAP:
2436 harbaum 105 case OSM_GPS_MAP_SOURCE_OPENCYCLEMAP:
2437 harbaum 55 return OSM_MAX_ZOOM;
2438     case OSM_GPS_MAP_SOURCE_OPENSTREETMAP_RENDERER:
2439     case OSM_GPS_MAP_SOURCE_GOOGLE_STREET:
2440     case OSM_GPS_MAP_SOURCE_GOOGLE_HYBRID:
2441     case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_STREET:
2442     case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_SATELLITE:
2443     case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_HYBRID:
2444     case OSM_GPS_MAP_SOURCE_YAHOO_STREET:
2445     case OSM_GPS_MAP_SOURCE_YAHOO_SATELLITE:
2446     case OSM_GPS_MAP_SOURCE_YAHOO_HYBRID:
2447     return 17;
2448 harbaum 92 case OSM_GPS_MAP_SOURCE_OSMC_TRAILS:
2449     return 15;
2450 harbaum 55 case OSM_GPS_MAP_SOURCE_MAPS_FOR_FREE:
2451     return 11;
2452     case OSM_GPS_MAP_SOURCE_GOOGLE_SATELLITE:
2453     return 18;
2454     default:
2455     return 17;
2456     }
2457     return 17;
2458     }
2459    
2460 harbaum 32 void
2461     osm_gps_map_download_maps (OsmGpsMap *map, coord_t *pt1, coord_t *pt2, int zoom_start, int zoom_end)
2462     {
2463     int i,j,zoom,num_tiles;
2464     OsmGpsMapPrivate *priv = map->priv;
2465    
2466     if (pt1 && pt2)
2467     {
2468     gchar *filename;
2469     num_tiles = 0;
2470     zoom_end = CLAMP(zoom_end, priv->min_zoom, priv->max_zoom);
2471     g_debug("Download maps: z:%d->%d",zoom_start, zoom_end);
2472    
2473     for(zoom=zoom_start; zoom<=zoom_end; zoom++)
2474     {
2475     int x1,y1,x2,y2;
2476    
2477     x1 = (int)floor((float)lon2pixel(zoom, pt1->rlon) / (float)TILESIZE);
2478     y1 = (int)floor((float)lat2pixel(zoom, pt1->rlat) / (float)TILESIZE);
2479    
2480     x2 = (int)floor((float)lon2pixel(zoom, pt2->rlon) / (float)TILESIZE);
2481     y2 = (int)floor((float)lat2pixel(zoom, pt2->rlat) / (float)TILESIZE);
2482    
2483     // loop x1-x2
2484     for(i=x1; i<=x2; i++)
2485     {
2486     // loop y1 - y2
2487     for(j=y1; j<=y2; j++)
2488     {
2489     // x = i, y = j
2490 harbaum 55 filename = g_strdup_printf("%s%c%d%c%d%c%d.%s",
2491     priv->cache_dir, G_DIR_SEPARATOR,
2492     zoom, G_DIR_SEPARATOR,
2493     i, G_DIR_SEPARATOR,
2494     j,
2495     priv->image_format);
2496     if (!g_file_test(filename, G_FILE_TEST_EXISTS))
2497 harbaum 32 {
2498     osm_gps_map_download_tile(map, zoom, i, j, FALSE);
2499     num_tiles++;
2500     }
2501     g_free(filename);
2502     }
2503     }
2504     g_debug("DL @Z:%d = %d tiles",zoom,num_tiles);
2505     }
2506     }
2507     }
2508    
2509     void
2510     osm_gps_map_get_bbox (OsmGpsMap *map, coord_t *pt1, coord_t *pt2)
2511     {
2512     OsmGpsMapPrivate *priv = map->priv;
2513    
2514     if (pt1 && pt2) {
2515     pt1->rlat = pixel2lat(priv->map_zoom, priv->map_y);
2516     pt1->rlon = pixel2lon(priv->map_zoom, priv->map_x);
2517     pt2->rlat = pixel2lat(priv->map_zoom, priv->map_y + GTK_WIDGET(map)->allocation.height);
2518     pt2->rlon = pixel2lon(priv->map_zoom, priv->map_x + GTK_WIDGET(map)->allocation.width);
2519    
2520     g_debug("BBOX: %f %f %f %f", pt1->rlat, pt1->rlon, pt2->rlat, pt2->rlon);
2521     }
2522     }
2523    
2524     void
2525     osm_gps_map_set_mapcenter (OsmGpsMap *map, float latitude, float longitude, int zoom)
2526     {
2527     osm_gps_map_set_center (map, latitude, longitude);
2528     osm_gps_map_set_zoom (map, zoom);
2529     }
2530    
2531     void
2532     osm_gps_map_set_center (OsmGpsMap *map, float latitude, float longitude)
2533     {
2534     int pixel_x, pixel_y;
2535     OsmGpsMapPrivate *priv;
2536    
2537     g_return_if_fail (OSM_IS_GPS_MAP (map));
2538     priv = map->priv;
2539    
2540     priv->center_rlat = deg2rad(latitude);
2541     priv->center_rlon = deg2rad(longitude);
2542     priv->center_coord_set = TRUE;
2543    
2544     // pixel_x,y, offsets
2545     pixel_x = lon2pixel(priv->map_zoom, priv->center_rlon);
2546     pixel_y = lat2pixel(priv->map_zoom, priv->center_rlat);
2547    
2548     priv->map_x = pixel_x - GTK_WIDGET(map)->allocation.width/2;
2549     priv->map_y = pixel_y - GTK_WIDGET(map)->allocation.height/2;
2550    
2551     osm_gps_map_map_redraw_idle(map);
2552     }
2553    
2554     int
2555     osm_gps_map_set_zoom (OsmGpsMap *map, int zoom)
2556     {
2557     int zoom_old;
2558 harbaum 55 double factor = 0.0;
2559 harbaum 32 int width_center, height_center;
2560     OsmGpsMapPrivate *priv;
2561    
2562     g_return_val_if_fail (OSM_IS_GPS_MAP (map), 0);
2563     priv = map->priv;
2564    
2565     if (zoom != priv->map_zoom)
2566     {
2567     width_center = GTK_WIDGET(map)->allocation.width / 2;
2568     height_center = GTK_WIDGET(map)->allocation.height / 2;
2569    
2570     zoom_old = priv->map_zoom;
2571     //constrain zoom min_zoom -> max_zoom
2572     priv->map_zoom = CLAMP(zoom, priv->min_zoom, priv->max_zoom);
2573    
2574     if (priv->center_coord_set)
2575     {
2576     priv->map_x = lon2pixel(priv->map_zoom, priv->center_rlon) - width_center;
2577     priv->map_y = lat2pixel(priv->map_zoom, priv->center_rlat) - height_center;
2578     }
2579     else
2580     {
2581     factor = exp(priv->map_zoom * M_LN2)/exp(zoom_old * M_LN2);
2582     priv->map_x = ((priv->map_x + width_center) * factor) - width_center;
2583     priv->map_y = ((priv->map_y + height_center) * factor) - height_center;
2584     }
2585    
2586     g_debug("Zoom changed from %d to %d factor:%f x:%d",
2587     zoom_old, priv->map_zoom, factor, priv->map_x);
2588    
2589 harbaum 98 #ifdef ENABLE_OSD
2590     /* OSD may contain a scale, so we may have to re-render it */
2591     if(priv->osd && OSM_IS_GPS_MAP (priv->osd->widget))
2592     priv->osd->render (priv->osd);
2593     #endif
2594    
2595 harbaum 32 osm_gps_map_map_redraw_idle(map);
2596     }
2597     return priv->map_zoom;
2598     }
2599    
2600     void
2601     osm_gps_map_add_track (OsmGpsMap *map, GSList *track)
2602     {
2603     OsmGpsMapPrivate *priv;
2604    
2605     g_return_if_fail (OSM_IS_GPS_MAP (map));
2606     priv = map->priv;
2607    
2608     if (track) {
2609     priv->tracks = g_slist_append(priv->tracks, track);
2610     osm_gps_map_map_redraw_idle(map);
2611     }
2612     }
2613    
2614     void
2615     osm_gps_map_clear_tracks (OsmGpsMap *map)
2616     {
2617     g_return_if_fail (OSM_IS_GPS_MAP (map));
2618    
2619     osm_gps_map_free_tracks(map);
2620     osm_gps_map_map_redraw_idle(map);
2621     }
2622    
2623     void
2624     osm_gps_map_add_image (OsmGpsMap *map, float latitude, float longitude, GdkPixbuf *image)
2625     {
2626     g_return_if_fail (OSM_IS_GPS_MAP (map));
2627    
2628     if (image) {
2629     OsmGpsMapPrivate *priv = map->priv;
2630     image_t *im;
2631    
2632     //cache w/h for speed, and add image to list
2633     im = g_new0(image_t,1);
2634     im->w = gdk_pixbuf_get_width(image);
2635 harbaum 55 im->h = gdk_pixbuf_get_height(image);
2636 harbaum 32 im->pt.rlat = deg2rad(latitude);
2637     im->pt.rlon = deg2rad(longitude);
2638    
2639     g_object_ref(image);
2640     im->image = image;
2641    
2642     priv->images = g_slist_append(priv->images, im);
2643    
2644     osm_gps_map_map_redraw_idle(map);
2645     }
2646     }
2647    
2648 harbaum 55 gboolean
2649     osm_gps_map_remove_image (OsmGpsMap *map, GdkPixbuf *image)
2650     {
2651     OsmGpsMapPrivate *priv = map->priv;
2652     if (priv->images) {
2653     GSList *list;
2654     for(list = priv->images; list != NULL; list = list->next)
2655     {
2656     image_t *im = list->data;
2657     if (im->image == image)
2658     {
2659     priv->images = g_slist_remove_link(priv->images, list);
2660     g_object_unref(im->image);
2661     g_free(im);
2662     osm_gps_map_map_redraw_idle(map);
2663     return TRUE;
2664     }
2665     }
2666     }
2667     return FALSE;
2668     }
2669    
2670 harbaum 32 void
2671     osm_gps_map_clear_images (OsmGpsMap *map)
2672     {
2673     g_return_if_fail (OSM_IS_GPS_MAP (map));
2674    
2675     osm_gps_map_free_images(map);
2676     osm_gps_map_map_redraw_idle(map);
2677     }
2678    
2679     void
2680     osm_gps_map_draw_gps (OsmGpsMap *map, float latitude, float longitude, float heading)
2681     {
2682     int pixel_x, pixel_y;
2683     OsmGpsMapPrivate *priv;
2684    
2685     g_return_if_fail (OSM_IS_GPS_MAP (map));
2686     priv = map->priv;
2687    
2688     priv->gps->rlat = deg2rad(latitude);
2689     priv->gps->rlon = deg2rad(longitude);
2690     priv->gps_valid = TRUE;
2691 harbaum 97 priv->gps_heading = deg2rad(heading);
2692 harbaum 32
2693     // pixel_x,y, offsets
2694     pixel_x = lon2pixel(priv->map_zoom, priv->gps->rlon);
2695     pixel_y = lat2pixel(priv->map_zoom, priv->gps->rlat);
2696    
2697     //If trip marker add to list of gps points.
2698     if (priv->record_trip_history) {
2699     coord_t *tp = g_new0(coord_t,1);
2700     tp->rlat = priv->gps->rlat;
2701     tp->rlon = priv->gps->rlon;
2702     priv->trip_history = g_slist_append(priv->trip_history, tp);
2703     }
2704    
2705     // dont draw anything if we are dragging
2706     if (priv->dragging) {
2707     g_debug("Dragging");
2708     return;
2709     }
2710    
2711     //Automatically center the map if the track approaches the edge
2712     if(priv->map_auto_center) {
2713     int x = pixel_x - priv->map_x;
2714     int y = pixel_y - priv->map_y;
2715     int width = GTK_WIDGET(map)->allocation.width;
2716     int height = GTK_WIDGET(map)->allocation.height;
2717     if( x < (width/2 - width/8) || x > (width/2 + width/8) ||
2718     y < (height/2 - height/8) || y > (height/2 + height/8)) {
2719    
2720     priv->map_x = pixel_x - GTK_WIDGET(map)->allocation.width/2;
2721     priv->map_y = pixel_y - GTK_WIDGET(map)->allocation.height/2;
2722     priv->center_coord_set = FALSE;
2723     }
2724     }
2725    
2726     // this redraws the map (including the gps track, and adjusts the
2727     // map center if it was changed
2728     osm_gps_map_map_redraw_idle(map);
2729     }
2730    
2731     void
2732     osm_gps_map_clear_gps (OsmGpsMap *map)
2733     {
2734     osm_gps_map_free_trip(map);
2735     osm_gps_map_map_redraw_idle(map);
2736     }
2737    
2738     coord_t
2739     osm_gps_map_get_co_ordinates (OsmGpsMap *map, int pixel_x, int pixel_y)
2740     {
2741     coord_t coord;
2742     OsmGpsMapPrivate *priv = map->priv;
2743    
2744     coord.rlat = pixel2lat(priv->map_zoom, priv->map_y + pixel_y);
2745     coord.rlon = pixel2lon(priv->map_zoom, priv->map_x + pixel_x);
2746     return coord;
2747     }
2748    
2749     GtkWidget *
2750     osm_gps_map_new (void)
2751     {
2752     return g_object_new (OSM_TYPE_GPS_MAP, NULL);
2753     }
2754    
2755     void
2756     osm_gps_map_screen_to_geographic (OsmGpsMap *map, gint pixel_x, gint pixel_y,
2757     gfloat *latitude, gfloat *longitude)
2758     {
2759     OsmGpsMapPrivate *priv;
2760    
2761     g_return_if_fail (OSM_IS_GPS_MAP (map));
2762     priv = map->priv;
2763    
2764     if (latitude)
2765     *latitude = rad2deg(pixel2lat(priv->map_zoom, priv->map_y + pixel_y));
2766     if (longitude)
2767     *longitude = rad2deg(pixel2lon(priv->map_zoom, priv->map_x + pixel_x));
2768     }
2769    
2770     void
2771     osm_gps_map_geographic_to_screen (OsmGpsMap *map,
2772     gfloat latitude, gfloat longitude,
2773     gint *pixel_x, gint *pixel_y)
2774     {
2775     OsmGpsMapPrivate *priv;
2776    
2777     g_return_if_fail (OSM_IS_GPS_MAP (map));
2778     priv = map->priv;
2779    
2780     if (pixel_x)
2781 harbaum 113 *pixel_x = lon2pixel(priv->map_zoom, deg2rad(longitude)) -
2782     priv->map_x + priv->drag_mouse_dx;
2783 harbaum 32 if (pixel_y)
2784 harbaum 113 *pixel_y = lat2pixel(priv->map_zoom, deg2rad(latitude)) -
2785     priv->map_y + priv->drag_mouse_dy;
2786 harbaum 32 }
2787    
2788     void
2789     osm_gps_map_scroll (OsmGpsMap *map, gint dx, gint dy)
2790     {
2791     OsmGpsMapPrivate *priv;
2792    
2793     g_return_if_fail (OSM_IS_GPS_MAP (map));
2794     priv = map->priv;
2795    
2796     priv->center_coord_set = FALSE;
2797     priv->map_x += dx;
2798     priv->map_y += dy;
2799    
2800 harbaum 111 #ifdef ENABLE_OSD
2801     /* OSD may contain a coordinate, so we may have to re-render it */
2802     if(priv->osd && OSM_IS_GPS_MAP (priv->osd->widget))
2803     priv->osd->render (priv->osd);
2804     #endif
2805    
2806 harbaum 32 osm_gps_map_map_redraw_idle (map);
2807     }
2808    
2809 harbaum 55 float
2810     osm_gps_map_get_scale(OsmGpsMap *map)
2811     {
2812     OsmGpsMapPrivate *priv;
2813    
2814 harbaum 97 g_return_val_if_fail (OSM_IS_GPS_MAP (map), OSM_GPS_MAP_INVALID);
2815 harbaum 55 priv = map->priv;
2816    
2817     return osm_gps_map_get_scale_at_point(priv->map_zoom, priv->center_rlat, priv->center_rlon);
2818     }
2819    
2820 harbaum 66 #ifdef ENABLE_OSD
2821 harbaum 73
2822     void
2823     osm_gps_map_redraw (OsmGpsMap *map)
2824     {
2825     osm_gps_map_map_redraw_idle(map);
2826     }
2827    
2828     osm_gps_map_osd_t *osm_gps_map_osd_get(OsmGpsMap *map) {
2829     g_return_val_if_fail (OSM_IS_GPS_MAP (map), NULL);
2830     return map->priv->osd;
2831     }
2832    
2833     void osm_gps_map_register_osd(OsmGpsMap *map, osm_gps_map_osd_t *osd) {
2834 harbaum 66 OsmGpsMapPrivate *priv;
2835    
2836     g_return_if_fail (OSM_IS_GPS_MAP (map));
2837 harbaum 73
2838 harbaum 66 priv = map->priv;
2839 harbaum 73 g_return_if_fail (!priv->osd);
2840 harbaum 66
2841 harbaum 73 priv->osd = osd;
2842 harbaum 66 }
2843 harbaum 73
2844 harbaum 86 void
2845     osm_gps_map_repaint (OsmGpsMap *map) {
2846     osm_gps_map_expose (GTK_WIDGET(map), NULL);
2847     }
2848    
2849 harbaum 66 #endif