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 );
32 static gboolean _is_direct_file_access ( VikMapSource *self );
34 static gchar *_get_uri( VikMapSourceDefault *self, MapCoord *src );
35 static gchar *_get_hostname( VikMapSourceDefault *self );
36 static DownloadMapOptions *_get_download_options( VikMapSourceDefault *self );
38 /* FIXME Huge gruik */
39 static DownloadMapOptions terraserver_options = { FALSE, FALSE, NULL, 0, a_check_map_file };
41 typedef struct _TerraserverMapSourcePrivate TerraserverMapSourcePrivate;
42 struct _TerraserverMapSourcePrivate
47 #define TERRASERVER_MAP_SOURCE_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), TERRASERVER_TYPE_MAP_SOURCE, TerraserverMapSourcePrivate))
57 G_DEFINE_TYPE (TerraserverMapSource, terraserver_map_source, VIK_TYPE_MAP_SOURCE_DEFAULT);
60 terraserver_map_source_init (TerraserverMapSource *self)
62 /* initialize the object here */
63 g_object_set (G_OBJECT (self),
66 "drawmode", VIK_VIEWPORT_DRAWMODE_UTM,
71 terraserver_map_source_finalize (GObject *object)
73 /* TODO: Add deinitalization code here */
75 G_OBJECT_CLASS (terraserver_map_source_parent_class)->finalize (object);
79 terraserver_map_source_set_property (GObject *object,
84 TerraserverMapSource *self = TERRASERVER_MAP_SOURCE (object);
85 TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE (self);
90 priv->type = g_value_get_uint (value);
94 /* We don't have any other property... */
95 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
101 terraserver_map_source_get_property (GObject *object,
106 TerraserverMapSource *self = TERRASERVER_MAP_SOURCE (object);
107 TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE (self);
112 g_value_set_uint (value, priv->type);
116 /* We don't have any other property... */
117 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
123 terraserver_map_source_class_init (TerraserverMapSourceClass *klass)
125 GObjectClass* object_class = G_OBJECT_CLASS (klass);
126 VikMapSourceClass* grandparent_class = VIK_MAP_SOURCE_CLASS (klass);
127 VikMapSourceDefaultClass* parent_class = VIK_MAP_SOURCE_DEFAULT_CLASS (klass);
128 GParamSpec *pspec = NULL;
130 object_class->set_property = terraserver_map_source_set_property;
131 object_class->get_property = terraserver_map_source_get_property;
133 /* Overiding methods */
134 grandparent_class->coord_to_mapcoord = _coord_to_mapcoord;
135 grandparent_class->mapcoord_to_center_coord = _mapcoord_to_center_coord;
136 grandparent_class->is_direct_file_access = _is_direct_file_access;
138 parent_class->get_uri = _get_uri;
139 parent_class->get_hostname = _get_hostname;
140 parent_class->get_download_options = _get_download_options;
142 pspec = g_param_spec_uint ("type",
144 "Type of Terraserver map",
145 0 /* minimum value */,
146 G_MAXUINT8 /* maximum value */,
147 0 /* default value */,
148 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
149 g_object_class_install_property (object_class, PROP_TYPE, pspec);
151 g_type_class_add_private (klass, sizeof (TerraserverMapSourcePrivate));
153 object_class->finalize = terraserver_map_source_finalize;
156 #define TERRASERVER_SITE "msrmaps.com"
157 #define MARGIN_OF_ERROR 0.001
159 static int mpp_to_scale ( gdouble mpp, guint8 type )
163 if ( ABS(mpp - t) > MARGIN_OF_ERROR )
167 case 1: return (type == 4) ? 8 : 0;
168 case 2: return (type == 4) ? 9 : 0;
169 case 4: return (type != 2) ? 10 : 0;
177 case 1024: return 18;
178 case 2048: return 19;
183 static gdouble scale_to_mpp ( gint scale )
185 return pow(2,scale - 10);
189 _coord_to_mapcoord ( VikMapSource *self, const VikCoord *src, gdouble xmpp, gdouble ympp, MapCoord *dest )
191 g_return_val_if_fail(TERRASERVER_IS_MAP_SOURCE(self), FALSE);
193 TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE(self);
194 int type = priv->type;
195 if ( src->mode != VIK_COORD_UTM )
201 dest->scale = mpp_to_scale ( xmpp, type );
205 dest->x = (gint)(((gint)(src->east_west))/(200*xmpp));
206 dest->y = (gint)(((gint)(src->north_south))/(200*xmpp));
207 dest->z = src->utm_zone;
212 _is_direct_file_access ( VikMapSource *self )
218 _mapcoord_to_center_coord ( VikMapSource *self, MapCoord *src, VikCoord *dest )
220 // FIXME: slowdown here!
221 gdouble mpp = scale_to_mpp ( src->scale );
222 dest->mode = VIK_COORD_UTM;
223 dest->utm_zone = src->z;
224 dest->east_west = ((src->x * 200) + 100) * mpp;
225 dest->north_south = ((src->y * 200) + 100) * mpp;
229 _get_uri( VikMapSourceDefault *self, MapCoord *src )
231 g_return_val_if_fail (TERRASERVER_IS_MAP_SOURCE(self), NULL);
233 TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE(self);
234 int type = priv->type;
235 gchar *uri = g_strdup_printf ( "/tile.ashx?T=%d&S=%d&X=%d&Y=%d&Z=%d", type,
236 src->scale, src->x, src->y, src->z );
241 _get_hostname( VikMapSourceDefault *self )
243 g_return_val_if_fail (TERRASERVER_IS_MAP_SOURCE(self), NULL);
245 return g_strdup( TERRASERVER_SITE );
248 static DownloadMapOptions *
249 _get_download_options( VikMapSourceDefault *self )
251 g_return_val_if_fail (TERRASERVER_IS_MAP_SOURCE(self), NULL);
253 return &terraserver_options;
256 TerraserverMapSource *
257 terraserver_map_source_new_with_id (guint8 id, const char *label, int type)
259 char *copyright = NULL;
263 copyright = "© DigitalGlobe";
266 copyright = "© LandVoyage";
269 copyright = "© DigitalGlobe";
272 g_critical("Houston, we've had a problem. type=%d", type);
275 return g_object_new(TERRASERVER_TYPE_MAP_SOURCE,
276 "id", id, "label", label, "type", type,
277 "copyright", copyright,