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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> |
c9c9e658 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 | */ | |
19 | #ifdef HAVE_CONFIG_H | |
20 | #include "config.h" | |
21 | #endif | |
22 | ||
23 | #ifdef HAVE_MATH_H | |
24 | #include <math.h> | |
25 | #endif | |
26 | ||
27 | #include "globals.h" | |
28 | #include "terraservermapsource.h" | |
29 | ||
30 | static gboolean _coord_to_mapcoord ( VikMapSource *self, const VikCoord *src, gdouble xzoom, gdouble yzoom, MapCoord *dest ); | |
31 | static void _mapcoord_to_center_coord ( VikMapSource *self, MapCoord *src, VikCoord *dest ); | |
a0262d5b | 32 | static gboolean _is_direct_file_access ( VikMapSource *self ); |
0fb11294 | 33 | static gboolean _is_mbtiles ( VikMapSource *self ); |
f66ea3ec GB |
34 | |
35 | static gchar *_get_uri( VikMapSourceDefault *self, MapCoord *src ); | |
36 | static gchar *_get_hostname( VikMapSourceDefault *self ); | |
37 | static DownloadMapOptions *_get_download_options( VikMapSourceDefault *self ); | |
c9c9e658 GB |
38 | |
39 | /* FIXME Huge gruik */ | |
63959706 | 40 | static DownloadMapOptions terraserver_options = { FALSE, FALSE, NULL, 0, a_check_map_file, NULL, NULL }; |
c9c9e658 GB |
41 | |
42 | typedef struct _TerraserverMapSourcePrivate TerraserverMapSourcePrivate; | |
43 | struct _TerraserverMapSourcePrivate | |
44 | { | |
e76eccdc | 45 | guint8 type; |
c9c9e658 GB |
46 | }; |
47 | ||
48 | #define TERRASERVER_MAP_SOURCE_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), TERRASERVER_TYPE_MAP_SOURCE, TerraserverMapSourcePrivate)) | |
49 | ||
e76eccdc GB |
50 | /* properties */ |
51 | enum | |
52 | { | |
53 | PROP_0, | |
54 | ||
55 | PROP_TYPE, | |
56 | }; | |
57 | ||
f6411015 | 58 | G_DEFINE_TYPE (TerraserverMapSource, terraserver_map_source, VIK_TYPE_MAP_SOURCE_DEFAULT); |
c9c9e658 GB |
59 | |
60 | static void | |
3a84e537 | 61 | terraserver_map_source_init (TerraserverMapSource *self) |
c9c9e658 GB |
62 | { |
63 | /* initialize the object here */ | |
31f3c5e7 GB |
64 | g_object_set (G_OBJECT (self), |
65 | "tilesize-x", 200, | |
66 | "tilesize-y", 200, | |
67 | "drawmode", VIK_VIEWPORT_DRAWMODE_UTM, | |
68 | NULL); | |
c9c9e658 GB |
69 | } |
70 | ||
71 | static void | |
72 | terraserver_map_source_finalize (GObject *object) | |
73 | { | |
74 | /* TODO: Add deinitalization code here */ | |
75 | ||
76 | G_OBJECT_CLASS (terraserver_map_source_parent_class)->finalize (object); | |
77 | } | |
78 | ||
e76eccdc GB |
79 | static void |
80 | terraserver_map_source_set_property (GObject *object, | |
81 | guint property_id, | |
82 | const GValue *value, | |
83 | GParamSpec *pspec) | |
84 | { | |
85 | TerraserverMapSource *self = TERRASERVER_MAP_SOURCE (object); | |
86 | TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE (self); | |
87 | ||
88 | switch (property_id) | |
89 | { | |
90 | case PROP_TYPE: | |
91 | priv->type = g_value_get_uint (value); | |
92 | break; | |
93 | ||
94 | default: | |
95 | /* We don't have any other property... */ | |
96 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); | |
97 | break; | |
98 | } | |
99 | } | |
100 | ||
101 | static void | |
102 | terraserver_map_source_get_property (GObject *object, | |
103 | guint property_id, | |
104 | GValue *value, | |
105 | GParamSpec *pspec) | |
106 | { | |
107 | TerraserverMapSource *self = TERRASERVER_MAP_SOURCE (object); | |
108 | TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE (self); | |
109 | ||
110 | switch (property_id) | |
111 | { | |
112 | case PROP_TYPE: | |
113 | g_value_set_uint (value, priv->type); | |
114 | break; | |
115 | ||
116 | default: | |
117 | /* We don't have any other property... */ | |
118 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); | |
119 | break; | |
120 | } | |
121 | } | |
122 | ||
c9c9e658 GB |
123 | static void |
124 | terraserver_map_source_class_init (TerraserverMapSourceClass *klass) | |
125 | { | |
126 | GObjectClass* object_class = G_OBJECT_CLASS (klass); | |
a3319e11 | 127 | VikMapSourceClass* grandparent_class = VIK_MAP_SOURCE_CLASS (klass); |
f66ea3ec | 128 | VikMapSourceDefaultClass* parent_class = VIK_MAP_SOURCE_DEFAULT_CLASS (klass); |
e76eccdc GB |
129 | GParamSpec *pspec = NULL; |
130 | ||
131 | object_class->set_property = terraserver_map_source_set_property; | |
132 | object_class->get_property = terraserver_map_source_get_property; | |
133 | ||
c9c9e658 | 134 | /* Overiding methods */ |
a3319e11 RN |
135 | grandparent_class->coord_to_mapcoord = _coord_to_mapcoord; |
136 | grandparent_class->mapcoord_to_center_coord = _mapcoord_to_center_coord; | |
a0262d5b | 137 | grandparent_class->is_direct_file_access = _is_direct_file_access; |
0fb11294 | 138 | grandparent_class->is_mbtiles = _is_mbtiles; |
f66ea3ec GB |
139 | |
140 | parent_class->get_uri = _get_uri; | |
141 | parent_class->get_hostname = _get_hostname; | |
142 | parent_class->get_download_options = _get_download_options; | |
e76eccdc GB |
143 | |
144 | pspec = g_param_spec_uint ("type", | |
145 | "Type", | |
146 | "Type of Terraserver map", | |
147 | 0 /* minimum value */, | |
148 | G_MAXUINT8 /* maximum value */, | |
149 | 0 /* default value */, | |
150 | G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE); | |
151 | g_object_class_install_property (object_class, PROP_TYPE, pspec); | |
152 | ||
c9c9e658 GB |
153 | g_type_class_add_private (klass, sizeof (TerraserverMapSourcePrivate)); |
154 | ||
155 | object_class->finalize = terraserver_map_source_finalize; | |
156 | } | |
157 | ||
ef06c03a | 158 | #define TERRASERVER_SITE "msrmaps.com" |
c9c9e658 GB |
159 | #define MARGIN_OF_ERROR 0.001 |
160 | ||
161 | static int mpp_to_scale ( gdouble mpp, guint8 type ) | |
162 | { | |
163 | mpp *= 4; | |
164 | gint t = (gint) mpp; | |
165 | if ( ABS(mpp - t) > MARGIN_OF_ERROR ) | |
166 | return FALSE; | |
167 | ||
168 | switch ( t ) { | |
169 | case 1: return (type == 4) ? 8 : 0; | |
170 | case 2: return (type == 4) ? 9 : 0; | |
171 | case 4: return (type != 2) ? 10 : 0; | |
172 | case 8: return 11; | |
173 | case 16: return 12; | |
174 | case 32: return 13; | |
175 | case 64: return 14; | |
176 | case 128: return 15; | |
177 | case 256: return 16; | |
178 | case 512: return 17; | |
179 | case 1024: return 18; | |
180 | case 2048: return 19; | |
181 | default: return 0; | |
182 | } | |
183 | } | |
184 | ||
185 | static gdouble scale_to_mpp ( gint scale ) | |
186 | { | |
187 | return pow(2,scale - 10); | |
188 | } | |
189 | ||
190 | static gboolean | |
191 | _coord_to_mapcoord ( VikMapSource *self, const VikCoord *src, gdouble xmpp, gdouble ympp, MapCoord *dest ) | |
192 | { | |
193 | g_return_val_if_fail(TERRASERVER_IS_MAP_SOURCE(self), FALSE); | |
194 | ||
195 | TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE(self); | |
196 | int type = priv->type; | |
d3232158 | 197 | if ( src->mode != VIK_COORD_UTM ) |
6c83cd7c | 198 | return FALSE; |
c9c9e658 GB |
199 | |
200 | if ( xmpp != ympp ) | |
201 | return FALSE; | |
202 | ||
203 | dest->scale = mpp_to_scale ( xmpp, type ); | |
204 | if ( ! dest->scale ) | |
205 | return FALSE; | |
206 | ||
207 | dest->x = (gint)(((gint)(src->east_west))/(200*xmpp)); | |
208 | dest->y = (gint)(((gint)(src->north_south))/(200*xmpp)); | |
209 | dest->z = src->utm_zone; | |
210 | return TRUE; | |
211 | } | |
212 | ||
a0262d5b RN |
213 | static gboolean |
214 | _is_direct_file_access ( VikMapSource *self ) | |
215 | { | |
216 | return FALSE; | |
217 | } | |
218 | ||
0fb11294 RN |
219 | static gboolean |
220 | _is_mbtiles ( VikMapSource *self ) | |
221 | { | |
222 | return FALSE; | |
223 | } | |
224 | ||
c9c9e658 GB |
225 | static void |
226 | _mapcoord_to_center_coord ( VikMapSource *self, MapCoord *src, VikCoord *dest ) | |
227 | { | |
228 | // FIXME: slowdown here! | |
229 | gdouble mpp = scale_to_mpp ( src->scale ); | |
230 | dest->mode = VIK_COORD_UTM; | |
231 | dest->utm_zone = src->z; | |
232 | dest->east_west = ((src->x * 200) + 100) * mpp; | |
233 | dest->north_south = ((src->y * 200) + 100) * mpp; | |
234 | } | |
235 | ||
f66ea3ec GB |
236 | static gchar * |
237 | _get_uri( VikMapSourceDefault *self, MapCoord *src ) | |
c9c9e658 | 238 | { |
f66ea3ec | 239 | g_return_val_if_fail (TERRASERVER_IS_MAP_SOURCE(self), NULL); |
c9c9e658 | 240 | |
f66ea3ec | 241 | TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE(self); |
c9c9e658 GB |
242 | int type = priv->type; |
243 | gchar *uri = g_strdup_printf ( "/tile.ashx?T=%d&S=%d&X=%d&Y=%d&Z=%d", type, | |
244 | src->scale, src->x, src->y, src->z ); | |
f66ea3ec GB |
245 | return uri; |
246 | } | |
c9c9e658 | 247 | |
f66ea3ec GB |
248 | static gchar * |
249 | _get_hostname( VikMapSourceDefault *self ) | |
825413ba | 250 | { |
f66ea3ec GB |
251 | g_return_val_if_fail (TERRASERVER_IS_MAP_SOURCE(self), NULL); |
252 | ||
253 | return g_strdup( TERRASERVER_SITE ); | |
825413ba SW |
254 | } |
255 | ||
f66ea3ec GB |
256 | static DownloadMapOptions * |
257 | _get_download_options( VikMapSourceDefault *self ) | |
825413ba | 258 | { |
f66ea3ec GB |
259 | g_return_val_if_fail (TERRASERVER_IS_MAP_SOURCE(self), NULL); |
260 | ||
261 | return &terraserver_options; | |
825413ba SW |
262 | } |
263 | ||
c9c9e658 | 264 | TerraserverMapSource * |
d7e495b2 | 265 | terraserver_map_source_new_with_id (guint16 id, const char *label, int type) |
c9c9e658 | 266 | { |
82aa018d GB |
267 | char *copyright = NULL; |
268 | switch (type) | |
269 | { | |
270 | case 1: | |
271 | copyright = "© DigitalGlobe"; | |
272 | break; | |
273 | case 2: | |
274 | copyright = "© LandVoyage"; | |
275 | break; | |
276 | case 4: | |
277 | copyright = "© DigitalGlobe"; | |
278 | break; | |
279 | default: | |
280 | g_critical("Houston, we've had a problem. type=%d", type); | |
281 | } | |
282 | ||
283 | return g_object_new(TERRASERVER_TYPE_MAP_SOURCE, | |
284 | "id", id, "label", label, "type", type, | |
285 | "copyright", copyright, | |
286 | NULL); | |
825413ba | 287 | } |