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[andy/viking.git] / src / vikslippymapsource.c
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e3a90009
GB		 1/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
2/*
3 * viking
a482007a 4 * Copyright (C) 2009, Guilhem Bonnefille <guilhem.bonnefille@gmail.com>
e3a90009
GB		 5 *
6 * viking is free software: you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * viking is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
14 * See the GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
dfc4db8b
GB		 19
20 /**
21 * SECTION:vikslippymapsource
22 * @short_description: the class for SlippyMap oriented map sources
23 *
24 * The #VikSlippyMapSource class handles slippy map oriented map sources.
25 * The related service is tile oriented, à la Google.
26 *
27 * The tiles are in 'google spherical mercator', which is
28 * basically a mercator projection that assumes a spherical earth.
29 * http://docs.openlayers.org/library/spherical_mercator.html
30 *
31 * Such service is also a type of TMS (Tile Map Service) as defined in
32 * OSGeo's wiki.
33 * http://wiki.osgeo.org/wiki/Tile_Map_Service_Specification
34 * But take care that the Y axis is inverted, ie the origin is at top-left
35 * corner.
36 * Following this specification, the protocol handled by this class
37 * follows the global-mercator profile.
38 *
39 * You can also find many interesting information on the OSM's wiki.
40 * http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames
41 * http://wiki.openstreetmap.org/wiki/Setting_up_TMS
42 */
43
e3a90009
GB		 44#ifdef HAVE_CONFIG_H
45#include "config.h"
46#endif
47
8eb12ac6 48#include "vikslippymapsource.h"
e1dde2a6 49#include "maputils.h"
e3a90009
GB		 50
51static gboolean _coord_to_mapcoord ( VikMapSource *self, const VikCoord *src, gdouble xzoom, gdouble yzoom, MapCoord *dest );
52static void _mapcoord_to_center_coord ( VikMapSource *self, MapCoord *src, VikCoord *dest );
f66ea3ec 53
2673b29d 54static gboolean _is_direct_file_access (VikMapSource *self );
0fb11294 55static gboolean _is_mbtiles (VikMapSource *self );
99f0d7df 56static gboolean _is_osm_meta_tiles (VikMapSource *self );
c81ded98 57static gboolean _supports_download_only_new (VikMapSource *self );
e633ddef
RN		 58static guint8 _get_zoom_min(VikMapSource *self );
59static guint8 _get_zoom_max(VikMapSource *self );
2113a507
RN		 60static gdouble _get_lat_min(VikMapSource *self );
61static gdouble _get_lat_max(VikMapSource *self );
62static gdouble _get_lon_min(VikMapSource *self );
63static gdouble _get_lon_max(VikMapSource *self );
e3a90009 64
f66ea3ec
GB		 65static gchar *_get_uri( VikMapSourceDefault *self, MapCoord *src );
66static gchar *_get_hostname( VikMapSourceDefault *self );
67static DownloadMapOptions *_get_download_options( VikMapSourceDefault *self );
e3a90009 68
8eb12ac6
GB		 69typedef struct _VikSlippyMapSourcePrivate VikSlippyMapSourcePrivate;
70struct _VikSlippyMapSourcePrivate
71{
72 gchar *hostname;
73 gchar *url;
b529dc9c 74 DownloadMapOptions options;
e633ddef
RN		 75 // NB Probably best to keep the above fields in same order to be common across Slippy, TMS & WMS map definitions
76 guint zoom_min; // TMS Zoom level: 0 = Whole World // http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames
77 guint zoom_max; // TMS Zoom level: Often 18 for zoomed in.
2113a507
RN		 78 gdouble lat_min; // Degrees
79 gdouble lat_max; // Degrees
80 gdouble lon_min; // Degrees
81 gdouble lon_max; // Degrees
2673b29d 82 gboolean is_direct_file_access;
0fb11294 83 gboolean is_mbtiles;
99f0d7df 84 gboolean is_osm_meta_tiles; // http://wiki.openstreetmap.org/wiki/Meta_tiles as used by tirex or renderd
f8964a2b
RN		 85 // Mainly for ARCGIS Tile Server URL Layout // http://help.arcgis.com/EN/arcgisserver/10.0/apis/rest/tile.html
86 gboolean switch_xy;
8eb12ac6
GB		 87};
88
89#define VIK_SLIPPY_MAP_SOURCE_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), VIK_TYPE_SLIPPY_MAP_SOURCE, VikSlippyMapSourcePrivate))
90
4e53f3dc
GB		 91/* properties */
92enum
93{
94 PROP_0,
95
96 PROP_HOSTNAME,
97 PROP_URL,
e633ddef
RN		 98 PROP_ZOOM_MIN,
99 PROP_ZOOM_MAX,
2113a507
RN		 100 PROP_LAT_MIN,
101 PROP_LAT_MAX,
102 PROP_LON_MIN,
103 PROP_LON_MAX,
c395c6a5
GB		 104 PROP_REFERER,
105 PROP_FOLLOW_LOCATION,
0f08bd0d 106 PROP_CHECK_FILE_SERVER_TIME,
05dbd9ba 107 PROP_USE_ETAG,
2673b29d 108 PROP_IS_DIRECT_FILE_ACCESS,
0fb11294 109 PROP_IS_MBTILES,
99f0d7df 110 PROP_IS_OSM_META_TILES,
f8964a2b 111 PROP_SWITCH_XY,
4e53f3dc
GB		 112};
113
f6411015 114G_DEFINE_TYPE (VikSlippyMapSource, vik_slippy_map_source, VIK_TYPE_MAP_SOURCE_DEFAULT);
e3a90009
GB		 115
116static void
3a84e537 117vik_slippy_map_source_init (VikSlippyMapSource *self)
e3a90009 118{
9cca9d93
GB		 119 /* initialize the object here */
120 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE (self);
121
122 priv->hostname = NULL;
123 priv->url = NULL;
e633ddef
RN		 124 priv->zoom_min = 0;
125 priv->zoom_max = 18;
2113a507
RN		 126 priv->lat_min = -90.0;
127 priv->lat_max = 90.0;
128 priv->lon_min = -180.0;
129 priv->lon_max = 180.0;
c395c6a5
GB		 130 priv->options.referer = NULL;
131 priv->options.follow_location = 0;
132 priv->options.check_file = a_check_map_file;
6693f5f9 133 priv->options.check_file_server_time = FALSE;
2673b29d
RN		 134 priv->options.use_etag = FALSE;
135 priv->is_direct_file_access = FALSE;
0fb11294 136 priv->is_mbtiles = FALSE;
99f0d7df 137 priv->is_osm_meta_tiles = FALSE;
f8964a2b 138 priv->switch_xy = FALSE;
9cca9d93
GB		 139
140 g_object_set (G_OBJECT (self),
141 "tilesize-x", 256,
142 "tilesize-y", 256,
143 "drawmode", VIK_VIEWPORT_DRAWMODE_MERCATOR,
144 NULL);
e3a90009
GB		 145}
146
147static void
8eb12ac6 148vik_slippy_map_source_finalize (GObject *object)
e3a90009 149{
9cca9d93
GB		 150 VikSlippyMapSource *self = VIK_SLIPPY_MAP_SOURCE (object);
151 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE (self);
152
153 g_free (priv->hostname);
154 priv->hostname = NULL;
155 g_free (priv->url);
156 priv->url = NULL;
c395c6a5
GB		 157 g_free (priv->options.referer);
158 priv->options.referer = NULL;
e3a90009 159
9cca9d93 160 G_OBJECT_CLASS (vik_slippy_map_source_parent_class)->finalize (object);
e3a90009
GB		 161}
162
4e53f3dc
GB		 163static void
164vik_slippy_map_source_set_property (GObject *object,
165 guint property_id,
166 const GValue *value,
167 GParamSpec *pspec)
168{
169 VikSlippyMapSource *self = VIK_SLIPPY_MAP_SOURCE (object);
170 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE (self);
171
172 switch (property_id)
173 {
174 case PROP_HOSTNAME:
175 g_free (priv->hostname);
176 priv->hostname = g_value_dup_string (value);
177 break;
178
179 case PROP_URL:
180 g_free (priv->url);
181 priv->url = g_value_dup_string (value);
182 break;
183
e633ddef
RN		 184 case PROP_ZOOM_MIN:
185 priv->zoom_min = g_value_get_uint (value);
186 break;
187
188 case PROP_ZOOM_MAX:
189 priv->zoom_max = g_value_get_uint (value);
190 break;
191
2113a507
RN		 192 case PROP_LAT_MIN:
193 priv->lat_min = g_value_get_double (value);
194 break;
195
196 case PROP_LAT_MAX:
197 priv->lat_max = g_value_get_double (value);
198 break;
199
200 case PROP_LON_MIN:
201 priv->lon_min = g_value_get_double (value);
202 break;
203
204 case PROP_LON_MAX:
205 priv->lon_max = g_value_get_double (value);
206 break;
207
c395c6a5
GB		 208 case PROP_REFERER:
209 g_free (priv->options.referer);
210 priv->options.referer = g_value_dup_string (value);
211 break;
212
213 case PROP_FOLLOW_LOCATION:
214 priv->options.follow_location = g_value_get_long (value);
215 break;
216
0f08bd0d 217 case PROP_CHECK_FILE_SERVER_TIME:
6693f5f9 218 priv->options.check_file_server_time = g_value_get_boolean (value);
0f08bd0d
GB		 219 break;
220
05dbd9ba
JJ		 221 case PROP_USE_ETAG:
222 priv->options.use_etag = g_value_get_boolean (value);
223 break;
224
2673b29d
RN		 225 case PROP_IS_DIRECT_FILE_ACCESS:
226 priv->is_direct_file_access = g_value_get_boolean (value);
227 break;
228
0fb11294
RN		 229 case PROP_IS_MBTILES:
230 priv->is_mbtiles = g_value_get_boolean (value);
231 break;
232
99f0d7df
RN		 233 case PROP_IS_OSM_META_TILES:
234 priv->is_osm_meta_tiles = g_value_get_boolean (value);
235 break;
236
f8964a2b
RN		 237 case PROP_SWITCH_XY:
238 priv->switch_xy = g_value_get_boolean (value);
239 break;
240
4e53f3dc
GB		 241 default:
242 /* We don't have any other property... */
243 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
244 break;
245 }
246}
247
248static void
249vik_slippy_map_source_get_property (GObject *object,
250 guint property_id,
251 GValue *value,
252 GParamSpec *pspec)
253{
254 VikSlippyMapSource *self = VIK_SLIPPY_MAP_SOURCE (object);
255 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE (self);
256
257 switch (property_id)
258 {
259 case PROP_HOSTNAME:
260 g_value_set_string (value, priv->hostname);
261 break;
262
263 case PROP_URL:
264 g_value_set_string (value, priv->url);
265 break;
266
e633ddef
RN		 267 case PROP_ZOOM_MIN:
268 g_value_set_uint (value, priv->zoom_min);
269 break;
270
271 case PROP_ZOOM_MAX:
272 g_value_set_uint (value, priv->zoom_max);
273 break;
274
2113a507
RN		 275 case PROP_LON_MIN:
276 g_value_set_double (value, priv->lon_min);
277 break;
278
279 case PROP_LON_MAX:
280 g_value_set_double (value, priv->lon_max);
281 break;
282
283 case PROP_LAT_MIN:
284 g_value_set_double (value, priv->lat_min);
285 break;
286
287 case PROP_LAT_MAX:
288 g_value_set_double (value, priv->lat_max);
289 break;
290
c395c6a5
GB		 291 case PROP_REFERER:
292 g_value_set_string (value, priv->options.referer);
293 break;
294
295 case PROP_FOLLOW_LOCATION:
296 g_value_set_long (value, priv->options.follow_location);
297 break;
298
0f08bd0d 299 case PROP_CHECK_FILE_SERVER_TIME:
6693f5f9 300 g_value_set_boolean (value, priv->options.check_file_server_time);
0f08bd0d
GB		 301 break;
302
05dbd9ba
JJ		 303 case PROP_USE_ETAG:
304 g_value_set_boolean (value, priv->options.use_etag);
305 break;
306
2673b29d
RN		 307 case PROP_IS_DIRECT_FILE_ACCESS:
308 g_value_set_boolean (value, priv->is_direct_file_access);
309 break;
310
0fb11294
RN		 311 case PROP_IS_MBTILES:
312 g_value_set_boolean (value, priv->is_mbtiles);
313 break;
314
99f0d7df
RN		 315 case PROP_IS_OSM_META_TILES:
316 g_value_set_boolean (value, priv->is_osm_meta_tiles);
317 break;
318
f8964a2b
RN		 319 case PROP_SWITCH_XY:
320 g_value_set_boolean (value, priv->switch_xy);
321 break;
322
4e53f3dc
GB		 323 default:
324 /* We don't have any other property... */
325 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
326 break;
327 }
328}
329
e3a90009 330static void
8eb12ac6 331vik_slippy_map_source_class_init (VikSlippyMapSourceClass *klass)
e3a90009
GB		 332{
333 GObjectClass* object_class = G_OBJECT_CLASS (klass);
de674329 334 VikMapSourceClass* grandparent_class = VIK_MAP_SOURCE_CLASS (klass);
f66ea3ec 335 VikMapSourceDefaultClass* parent_class = VIK_MAP_SOURCE_DEFAULT_CLASS (klass);
4e53f3dc
GB		 336 GParamSpec *pspec = NULL;
337
338 object_class->set_property = vik_slippy_map_source_set_property;
339 object_class->get_property = vik_slippy_map_source_get_property;
e3a90009
GB		 340
341 /* Overiding methods */
de674329
RN		 342 grandparent_class->coord_to_mapcoord = _coord_to_mapcoord;
343 grandparent_class->mapcoord_to_center_coord = _mapcoord_to_center_coord;
2673b29d 344 grandparent_class->is_direct_file_access = _is_direct_file_access;
0fb11294 345 grandparent_class->is_mbtiles = _is_mbtiles;
99f0d7df 346 grandparent_class->is_osm_meta_tiles = _is_osm_meta_tiles;
de674329 347 grandparent_class->supports_download_only_new = _supports_download_only_new;
e633ddef
RN		 348 grandparent_class->get_zoom_min = _get_zoom_min;
349 grandparent_class->get_zoom_max = _get_zoom_max;
2113a507
RN		 350 grandparent_class->get_lat_min = _get_lat_min;
351 grandparent_class->get_lat_max = _get_lat_max;
352 grandparent_class->get_lon_min = _get_lon_min;
353 grandparent_class->get_lon_max = _get_lon_max;
f66ea3ec
GB		 354
355 parent_class->get_uri = _get_uri;
356 parent_class->get_hostname = _get_hostname;
357 parent_class->get_download_options = _get_download_options;
4e53f3dc
GB		 358
359 pspec = g_param_spec_string ("hostname",
360 "Hostname",
361 "The hostname of the map server",
362 "<no-set>" /* default value */,
9f58c4b4 363 G_PARAM_READWRITE);
4e53f3dc
GB		 364 g_object_class_install_property (object_class, PROP_HOSTNAME, pspec);
365
366 pspec = g_param_spec_string ("url",
367 "URL",
368 "The template of the tiles' URL",
369 "<no-set>" /* default value */,
9f58c4b4 370 G_PARAM_READWRITE);
4e53f3dc 371 g_object_class_install_property (object_class, PROP_URL, pspec);
c395c6a5 372
e633ddef
RN		 373 pspec = g_param_spec_uint ("zoom-min",
374 "Minimum zoom",
375 "Minimum Zoom level supported by the map provider",
376 0, // minimum value,
377 22, // maximum value
378 0, // default value
379 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
380 g_object_class_install_property (object_class, PROP_ZOOM_MIN, pspec);
381
382 pspec = g_param_spec_uint ("zoom-max",
383 "Maximum zoom",
384 "Maximum Zoom level supported by the map provider",
385 0, // minimum value,
386 22, // maximum value
387 18, // default value
388 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
389 g_object_class_install_property (object_class, PROP_ZOOM_MAX, pspec);
390
2113a507
RN		 391 pspec = g_param_spec_double ("lat-min",
392 "Minimum latitude",
393 "Minimum latitude in degrees supported by the map provider",
394 -90.0, // minimum value
395 90.0, // maximum value
396 -90.0, // default value
397 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
398 g_object_class_install_property (object_class, PROP_LAT_MIN, pspec);
399
400 pspec = g_param_spec_double ("lat-max",
401 "Maximum latitude",
402 "Maximum latitude in degrees supported by the map provider",
403 -90.0, // minimum value
404 90.0, // maximum value
405 90.0, // default value
406 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
407 g_object_class_install_property (object_class, PROP_LAT_MAX, pspec);
408
409 pspec = g_param_spec_double ("lon-min",
410 "Minimum longitude",
411 "Minimum longitude in degrees supported by the map provider",
412 -180.0, // minimum value
413 180.0, // maximum value
414 -180.0, // default value
415 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
416 g_object_class_install_property (object_class, PROP_LON_MIN, pspec);
417
418 pspec = g_param_spec_double ("lon-max",
419 "Maximum longitude",
420 "Maximum longitude in degrees supported by the map provider",
421 -180.0, // minimum value
422 180.0, // maximum value
423 180.0, // default value
424 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
425 g_object_class_install_property (object_class, PROP_LON_MAX, pspec);
426
c395c6a5
GB		 427 pspec = g_param_spec_string ("referer",
428 "Referer",
429 "The REFERER string to use in HTTP request",
430 NULL /* default value */,
431 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
432 g_object_class_install_property (object_class, PROP_REFERER, pspec);
8eb12ac6 433
c395c6a5
GB		 434 pspec = g_param_spec_long ("follow-location",
435 "Follow location",
436 "Specifies the number of retries to follow a redirect while downloading a page",
437 0 /* minimum value */,
438 G_MAXLONG /* maximum value */,
439 0 /* default value */,
440 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
441 g_object_class_install_property (object_class, PROP_FOLLOW_LOCATION, pspec);
0f08bd0d 442
6693f5f9
GB		 443 pspec = g_param_spec_boolean ("check-file-server-time",
444 "Check file server time",
445 "Age of current cache before redownloading tile",
446 FALSE /* default value */,
447 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
0f08bd0d 448 g_object_class_install_property (object_class, PROP_CHECK_FILE_SERVER_TIME, pspec);
c395c6a5 449
05dbd9ba
JJ		 450 pspec = g_param_spec_boolean ("use-etag",
451 "Use etag values with server",
452 "Store etag in a file, and send it to server to check if we have the latest file",
453 FALSE /* default value */,
454 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
455 g_object_class_install_property (object_class, PROP_USE_ETAG, pspec);
456
2673b29d
RN		 457 pspec = g_param_spec_boolean ("use-direct-file-access",
458 "Use direct file access",
459 "Use direct file access to OSM like tile images - no need for a webservice",
460 FALSE /* default value */,
461 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
462 g_object_class_install_property (object_class, PROP_IS_DIRECT_FILE_ACCESS, pspec);
463
0fb11294
RN		 464 pspec = g_param_spec_boolean ("is-mbtiles",
465 "Is an SQL MBTiles File",
466 "Use an SQL MBTiles File for the tileset - no need for a webservice",
467 FALSE /* default value */,
468 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
469 g_object_class_install_property (object_class, PROP_IS_MBTILES, pspec);
f8964a2b 470
99f0d7df
RN		 471 pspec = g_param_spec_boolean ("is-osm-meta-tiles",
472 "Is in OSM Meta Tile format",
473 "Read from OSM Meta Tiles - Should be 'use-direct-file-access' as well",
474 FALSE /* default value */,
475 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
476 g_object_class_install_property (object_class, PROP_IS_OSM_META_TILES, pspec);
477
f8964a2b
RN		 478 pspec = g_param_spec_boolean ("switch-xy",
479 "Switch the order of x,y components in the URL",
480 "Switch the order of x,y components in the URL (such as used by ARCGIS Tile Server",
481 FALSE /* default value */,
482 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
483 g_object_class_install_property (object_class, PROP_SWITCH_XY, pspec);
484
8eb12ac6
GB		 485 g_type_class_add_private (klass, sizeof (VikSlippyMapSourcePrivate));
486
487 object_class->finalize = vik_slippy_map_source_finalize;
e3a90009
GB		 488}
489
cf65dac0 490static gboolean
2673b29d
RN		 491_is_direct_file_access (VikMapSource *self)
492{
493 g_return_val_if_fail (VIK_IS_SLIPPY_MAP_SOURCE(self), FALSE);
494
495 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE(self);
496
497 return priv->is_direct_file_access;
498}
499
0fb11294
RN		 500static gboolean
501_is_mbtiles (VikMapSource *self)
502{
503 g_return_val_if_fail (VIK_IS_SLIPPY_MAP_SOURCE(self), FALSE);
504
505 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE(self);
506
507 return priv->is_mbtiles;
508}
509
99f0d7df
RN		 510/**
511 *
512 */
513static gboolean
514_is_osm_meta_tiles (VikMapSource *self)
515{
516 g_return_val_if_fail (VIK_IS_SLIPPY_MAP_SOURCE(self), FALSE);
517 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE(self);
518 return priv->is_osm_meta_tiles;
519}
520
cf65dac0 521static gboolean
c81ded98 522_supports_download_only_new (VikMapSource *self)
0f08bd0d 523{
c81ded98 524 g_return_val_if_fail (VIK_IS_SLIPPY_MAP_SOURCE(self), FALSE);
0f08bd0d 525
c81ded98 526 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE(self);
0f08bd0d 527
c81ded98 528 return priv->options.check_file_server_time || priv->options.use_etag;
0f08bd0d 529}
f66ea3ec 530
e633ddef
RN		 531/**
532 *
533 */
534static guint8
535_get_zoom_min (VikMapSource *self)
536{
537 g_return_val_if_fail (VIK_IS_SLIPPY_MAP_SOURCE(self), FALSE);
538 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE(self);
539 return priv->zoom_min;
540}
541
542/**
543 *
544 */
545static guint8
546_get_zoom_max (VikMapSource *self)
547{
548 g_return_val_if_fail (VIK_IS_SLIPPY_MAP_SOURCE(self), FALSE);
549 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE(self);
550 return priv->zoom_max;
551}
552
2113a507
RN		 553/**
554 *
555 */
556static gdouble
557_get_lat_min (VikMapSource *self)
558{
559 g_return_val_if_fail (VIK_IS_SLIPPY_MAP_SOURCE(self), FALSE);
560 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE(self);
561 return priv->lat_min;
562}
563
564/**
565 *
566 */
567static gdouble
568_get_lat_max (VikMapSource *self)
569{
570 g_return_val_if_fail (VIK_IS_SLIPPY_MAP_SOURCE(self), FALSE);
571 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE(self);
572 return priv->lat_max;
573}
574
575/**
576 *
577 */
578static gdouble
579_get_lon_min (VikMapSource *self)
580{
581 g_return_val_if_fail (VIK_IS_SLIPPY_MAP_SOURCE(self), FALSE);
582 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE(self);
583 return priv->lon_min;
584}
585
586/**
587 *
588 */
589static gdouble
590_get_lon_max (VikMapSource *self)
591{
592 g_return_val_if_fail (VIK_IS_SLIPPY_MAP_SOURCE(self), FALSE);
593 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE(self);
594 return priv->lon_max;
595}
596
e3a90009
GB		 597static gboolean
598_coord_to_mapcoord ( VikMapSource *self, const VikCoord *src, gdouble xzoom, gdouble yzoom, MapCoord *dest )
599{
39519ab8 600 return map_utils_vikcoord_to_iTMS ( src, xzoom, yzoom, dest );
e3a90009
GB		 601}
602
603static void
604_mapcoord_to_center_coord ( VikMapSource *self, MapCoord *src, VikCoord *dest )
605{
39519ab8 606 map_utils_iTMS_to_center_vikcoord ( src, dest );
e3a90009
GB		 607}
608
8eb12ac6 609static gchar *
f66ea3ec 610_get_uri( VikMapSourceDefault *self, MapCoord *src )
8eb12ac6
GB		 611{
612 g_return_val_if_fail (VIK_IS_SLIPPY_MAP_SOURCE(self), NULL);
613
f8964a2b
RN		 614 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE(self);
615
616 gchar *uri = NULL;
617 if ( priv->switch_xy )
618 // 'ARC GIS' Tile Server layout ordering
619 uri = g_strdup_printf (priv->url, 17 - src->scale, src->y, src->x);
620 else
621 // (Default) Standard OSM Tile Server layout ordering
622 uri = g_strdup_printf (priv->url, 17 - src->scale, src->x, src->y);
623
8eb12ac6
GB		 624 return uri;
625}
626
627static gchar *
f66ea3ec 628_get_hostname( VikMapSourceDefault *self )
8eb12ac6
GB		 629{
630 g_return_val_if_fail (VIK_IS_SLIPPY_MAP_SOURCE(self), NULL);
631
632 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE(self);
633 return g_strdup( priv->hostname );
634}
635
b529dc9c 636static DownloadMapOptions *
f66ea3ec 637_get_download_options( VikMapSourceDefault *self )
8eb12ac6
GB		 638{
639 g_return_val_if_fail (VIK_IS_SLIPPY_MAP_SOURCE(self), NULL);
640
c395c6a5
GB		 641 VikSlippyMapSourcePrivate *priv = VIK_SLIPPY_MAP_SOURCE_PRIVATE(self);
642 return &(priv->options);
8eb12ac6
GB		 643}
644
645VikSlippyMapSource *
d7e495b2 646vik_slippy_map_source_new_with_id (guint16 id, const gchar *label, const gchar *hostname, const gchar *url)
8eb12ac6 647{
4e53f3dc 648 return g_object_new(VIK_TYPE_SLIPPY_MAP_SOURCE,
db03733a 649 "id", id, "label", label, "hostname", hostname, "url", url, NULL);
c395c6a5 650}
Viking GPS editor