1 /* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
4 * Copyright (C) 2009, Guilhem Bonnefille <guilhem.bonnefille@gmail.com>
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.
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.
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/>.
28 #include "terraservermapsource.h"
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 );
33 static gchar *_get_uri( VikMapSourceDefault *self, MapCoord *src );
34 static gchar *_get_hostname( VikMapSourceDefault *self );
35 static DownloadMapOptions *_get_download_options( VikMapSourceDefault *self );
37 /* FIXME Huge gruik */
38 static DownloadMapOptions terraserver_options = { FALSE, FALSE, NULL, 0, a_check_map_file };
40 typedef struct _TerraserverMapSourcePrivate TerraserverMapSourcePrivate;
41 struct _TerraserverMapSourcePrivate
46 #define TERRASERVER_MAP_SOURCE_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), TERRASERVER_TYPE_MAP_SOURCE, TerraserverMapSourcePrivate))
56 G_DEFINE_TYPE (TerraserverMapSource, terraserver_map_source, VIK_TYPE_MAP_SOURCE_DEFAULT);
59 terraserver_map_source_init (TerraserverMapSource *self)
61 /* initialize the object here */
62 g_object_set (G_OBJECT (self),
65 "drawmode", VIK_VIEWPORT_DRAWMODE_UTM,
70 terraserver_map_source_finalize (GObject *object)
72 /* TODO: Add deinitalization code here */
74 G_OBJECT_CLASS (terraserver_map_source_parent_class)->finalize (object);
78 terraserver_map_source_set_property (GObject *object,
83 TerraserverMapSource *self = TERRASERVER_MAP_SOURCE (object);
84 TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE (self);
89 priv->type = g_value_get_uint (value);
93 /* We don't have any other property... */
94 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
100 terraserver_map_source_get_property (GObject *object,
105 TerraserverMapSource *self = TERRASERVER_MAP_SOURCE (object);
106 TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE (self);
111 g_value_set_uint (value, priv->type);
115 /* We don't have any other property... */
116 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
122 terraserver_map_source_class_init (TerraserverMapSourceClass *klass)
124 GObjectClass* object_class = G_OBJECT_CLASS (klass);
125 VikMapSourceClass* grandparent_class = VIK_MAP_SOURCE_CLASS (klass);
126 VikMapSourceDefaultClass* parent_class = VIK_MAP_SOURCE_DEFAULT_CLASS (klass);
127 GParamSpec *pspec = NULL;
129 object_class->set_property = terraserver_map_source_set_property;
130 object_class->get_property = terraserver_map_source_get_property;
132 /* Overiding methods */
133 grandparent_class->coord_to_mapcoord = _coord_to_mapcoord;
134 grandparent_class->mapcoord_to_center_coord = _mapcoord_to_center_coord;
136 parent_class->get_uri = _get_uri;
137 parent_class->get_hostname = _get_hostname;
138 parent_class->get_download_options = _get_download_options;
140 pspec = g_param_spec_uint ("type",
142 "Type of Terraserver map",
143 0 /* minimum value */,
144 G_MAXUINT8 /* maximum value */,
145 0 /* default value */,
146 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
147 g_object_class_install_property (object_class, PROP_TYPE, pspec);
149 g_type_class_add_private (klass, sizeof (TerraserverMapSourcePrivate));
151 object_class->finalize = terraserver_map_source_finalize;
154 #define TERRASERVER_SITE "msrmaps.com"
155 #define MARGIN_OF_ERROR 0.001
157 static int mpp_to_scale ( gdouble mpp, guint8 type )
161 if ( ABS(mpp - t) > MARGIN_OF_ERROR )
165 case 1: return (type == 4) ? 8 : 0;
166 case 2: return (type == 4) ? 9 : 0;
167 case 4: return (type != 2) ? 10 : 0;
175 case 1024: return 18;
176 case 2048: return 19;
181 static gdouble scale_to_mpp ( gint scale )
183 return pow(2,scale - 10);
187 _coord_to_mapcoord ( VikMapSource *self, const VikCoord *src, gdouble xmpp, gdouble ympp, MapCoord *dest )
189 g_return_val_if_fail(TERRASERVER_IS_MAP_SOURCE(self), FALSE);
191 TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE(self);
192 int type = priv->type;
193 if ( src->mode != VIK_COORD_UTM )
199 dest->scale = mpp_to_scale ( xmpp, type );
203 dest->x = (gint)(((gint)(src->east_west))/(200*xmpp));
204 dest->y = (gint)(((gint)(src->north_south))/(200*xmpp));
205 dest->z = src->utm_zone;
210 _mapcoord_to_center_coord ( VikMapSource *self, MapCoord *src, VikCoord *dest )
212 // FIXME: slowdown here!
213 gdouble mpp = scale_to_mpp ( src->scale );
214 dest->mode = VIK_COORD_UTM;
215 dest->utm_zone = src->z;
216 dest->east_west = ((src->x * 200) + 100) * mpp;
217 dest->north_south = ((src->y * 200) + 100) * mpp;
221 _get_uri( VikMapSourceDefault *self, MapCoord *src )
223 g_return_val_if_fail (TERRASERVER_IS_MAP_SOURCE(self), NULL);
225 TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE(self);
226 int type = priv->type;
227 gchar *uri = g_strdup_printf ( "/tile.ashx?T=%d&S=%d&X=%d&Y=%d&Z=%d", type,
228 src->scale, src->x, src->y, src->z );
233 _get_hostname( VikMapSourceDefault *self )
235 g_return_val_if_fail (TERRASERVER_IS_MAP_SOURCE(self), NULL);
237 return g_strdup( TERRASERVER_SITE );
240 static DownloadMapOptions *
241 _get_download_options( VikMapSourceDefault *self )
243 g_return_val_if_fail (TERRASERVER_IS_MAP_SOURCE(self), NULL);
245 return &terraserver_options;
248 TerraserverMapSource *
249 terraserver_map_source_new_with_id (guint8 id, const char *label, int type)
251 char *copyright = NULL;
255 copyright = "© DigitalGlobe";
258 copyright = "© LandVoyage";
261 copyright = "© DigitalGlobe";
264 g_critical("Houston, we've had a problem. type=%d", type);
267 return g_object_new(TERRASERVER_TYPE_MAP_SOURCE,
268 "id", id, "label", label, "type", type,
269 "copyright", copyright,