[andy/viking.git] / src / terraservermapsource.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
/*
 * viking
 * Copyright (C) 2009, Guilhem Bonnefille <guilhem.bonnefille@gmail.com>
 * 
 * viking is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * viking is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along
 * with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#ifdef HAVE_MATH_H
#include <math.h>
#endif

#include "globals.h"
#include "terraservermapsource.h"

static gboolean _coord_to_mapcoord ( VikMapSource *self, const VikCoord *src, gdouble xzoom, gdouble yzoom, MapCoord *dest );
static void _mapcoord_to_center_coord ( VikMapSource *self, MapCoord *src, VikCoord *dest );

static gchar *_get_uri( VikMapSourceDefault *self, MapCoord *src );
static gchar *_get_hostname( VikMapSourceDefault *self );
static DownloadMapOptions *_get_download_options( VikMapSourceDefault *self );

/* FIXME Huge gruik */
static DownloadMapOptions terraserver_options = { FALSE, FALSE, NULL, 0, a_check_map_file };

typedef struct _TerraserverMapSourcePrivate TerraserverMapSourcePrivate;
struct _TerraserverMapSourcePrivate
{
  guint8 type;
};

#define TERRASERVER_MAP_SOURCE_PRIVATE(o)  (G_TYPE_INSTANCE_GET_PRIVATE ((o), TERRASERVER_TYPE_MAP_SOURCE, TerraserverMapSourcePrivate))

/* properties */
enum
{
  PROP_0,

  PROP_TYPE,
};

G_DEFINE_TYPE (TerraserverMapSource, terraserver_map_source, VIK_TYPE_MAP_SOURCE_DEFAULT);

static void
terraserver_map_source_init (TerraserverMapSource *self)
{
	/* initialize the object here */
	g_object_set (G_OBJECT (self),
	              "tilesize-x", 200,
	              "tilesize-y", 200,
	              "drawmode", VIK_VIEWPORT_DRAWMODE_UTM,
	              NULL);
}

static void
terraserver_map_source_finalize (GObject *object)
{
	/* TODO: Add deinitalization code here */

	G_OBJECT_CLASS (terraserver_map_source_parent_class)->finalize (object);
}

static void
terraserver_map_source_set_property (GObject      *object,
                                     guint         property_id,
                                     const GValue *value,
                                     GParamSpec   *pspec)
{
  TerraserverMapSource *self = TERRASERVER_MAP_SOURCE (object);
  TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE (self);

  switch (property_id)
    {
    case PROP_TYPE:
      priv->type = g_value_get_uint (value);
      break;

    default:
      /* We don't have any other property... */
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
      break;
    }
}

static void
terraserver_map_source_get_property (GObject    *object,
                                     guint       property_id,
                                     GValue     *value,
                                     GParamSpec *pspec)
{
  TerraserverMapSource *self = TERRASERVER_MAP_SOURCE (object);
  TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE (self);

  switch (property_id)
    {
    case PROP_TYPE:
      g_value_set_uint (value, priv->type);
      break;

    default:
      /* We don't have any other property... */
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
      break;
    }
}

static void
terraserver_map_source_class_init (TerraserverMapSourceClass *klass)
{
	GObjectClass* object_class = G_OBJECT_CLASS (klass);
	VikMapSourceClass* grandparent_class = VIK_MAP_SOURCE_CLASS (klass);
	VikMapSourceDefaultClass* parent_class = VIK_MAP_SOURCE_DEFAULT_CLASS (klass);
    GParamSpec *pspec = NULL;
	
	object_class->set_property = terraserver_map_source_set_property;
    object_class->get_property = terraserver_map_source_get_property;
	
	/* Overiding methods */
	grandparent_class->coord_to_mapcoord =        _coord_to_mapcoord;
	grandparent_class->mapcoord_to_center_coord = _mapcoord_to_center_coord;
	
	parent_class->get_uri = _get_uri;
	parent_class->get_hostname = _get_hostname;
	parent_class->get_download_options = _get_download_options;

	pspec = g_param_spec_uint ("type",
	                           "Type",
                               "Type of Terraserver map",
                               0  /* minimum value */,
                               G_MAXUINT8 /* maximum value */,
                               0  /* default value */,
                               G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
	g_object_class_install_property (object_class, PROP_TYPE, pspec);

	g_type_class_add_private (klass, sizeof (TerraserverMapSourcePrivate));
	
	object_class->finalize = terraserver_map_source_finalize;
}

#define TERRASERVER_SITE "msrmaps.com"
#define MARGIN_OF_ERROR 0.001

static int mpp_to_scale ( gdouble mpp, guint8 type )
{
  mpp *= 4;
  gint t = (gint) mpp;
  if ( ABS(mpp - t) > MARGIN_OF_ERROR )
    return FALSE;

  switch ( t ) {
    case 1: return (type == 4) ? 8 : 0;
    case 2: return (type == 4) ? 9 : 0;
    case 4: return (type != 2) ? 10 : 0;
    case 8: return 11;
    case 16: return 12;
    case 32: return 13;
    case 64: return 14;
    case 128: return 15;
    case 256: return 16;
    case 512: return 17;
    case 1024: return 18;
    case 2048: return 19;
    default: return 0;
  }
}

static gdouble scale_to_mpp ( gint scale )
{
  return pow(2,scale - 10);
}

static gboolean
_coord_to_mapcoord ( VikMapSource *self, const VikCoord *src, gdouble xmpp, gdouble ympp, MapCoord *dest )
{
	g_return_val_if_fail(TERRASERVER_IS_MAP_SOURCE(self), FALSE);
	
	TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE(self);
	int type = priv->type;
	if ( src->mode != VIK_COORD_UTM )
		return FALSE;

	if ( xmpp != ympp )
		return FALSE;

	dest->scale = mpp_to_scale ( xmpp, type );
	if ( ! dest->scale )
		return FALSE;

	dest->x = (gint)(((gint)(src->east_west))/(200*xmpp));
	dest->y = (gint)(((gint)(src->north_south))/(200*xmpp));
	dest->z = src->utm_zone;
	return TRUE;
}

static void
_mapcoord_to_center_coord ( VikMapSource *self, MapCoord *src, VikCoord *dest )
{
	// FIXME: slowdown here!
	gdouble mpp = scale_to_mpp ( src->scale );
	dest->mode = VIK_COORD_UTM;
	dest->utm_zone = src->z;
	dest->east_west = ((src->x * 200) + 100) * mpp;
	dest->north_south = ((src->y * 200) + 100) * mpp;
}

static gchar *
_get_uri( VikMapSourceDefault *self, MapCoord *src )
{
	g_return_val_if_fail (TERRASERVER_IS_MAP_SOURCE(self), NULL);
	
	TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE(self);
	int type = priv->type;
	gchar *uri = g_strdup_printf ( "/tile.ashx?T=%d&S=%d&X=%d&Y=%d&Z=%d", type,
                                  src->scale, src->x, src->y, src->z );
	return uri;
} 

static gchar *
_get_hostname( VikMapSourceDefault *self )
{
	g_return_val_if_fail (TERRASERVER_IS_MAP_SOURCE(self), NULL);
	
	return g_strdup( TERRASERVER_SITE );
}

static DownloadMapOptions *
_get_download_options( VikMapSourceDefault *self )
{
	g_return_val_if_fail (TERRASERVER_IS_MAP_SOURCE(self), NULL);
	
	return &terraserver_options;
}

TerraserverMapSource *
terraserver_map_source_new_with_id (guint8 id, const char *label, int type)
{
	char *copyright = NULL;
	switch (type)
	{
	case 1:
		copyright = "© DigitalGlobe";
		break;
	case 2:
		copyright = "© LandVoyage";
		break;
	case 4:
		copyright = "© DigitalGlobe";
		break;
	default:
		g_critical("Houston, we've had a problem. type=%d", type);
	}

	return g_object_new(TERRASERVER_TYPE_MAP_SOURCE,
	                    "id", id, "label", label, "type", type,
	                    "copyright", copyright,
	                    NULL);
}
Commit	Line	Data
c9c9e658 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>
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 );
f66ea3ec GB	32
	33	static gchar _get_uri( VikMapSourceDefault self, MapCoord *src );
	34	static gchar _get_hostname( VikMapSourceDefault self );
	35	static DownloadMapOptions _get_download_options( VikMapSourceDefault self );
c9c9e658 GB	36
c9c9e658 GB	37	/* FIXME Huge gruik */
74fbca98	38	static DownloadMapOptions terraserver_options = { FALSE, FALSE, NULL, 0, a_check_map_file };
c9c9e658 GB	39
	40	typedef struct _TerraserverMapSourcePrivate TerraserverMapSourcePrivate;
	41	struct _TerraserverMapSourcePrivate
	42	{
e76eccdc	43	guint8 type;
c9c9e658 GB	44	};
	45
	46	#define TERRASERVER_MAP_SOURCE_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), TERRASERVER_TYPE_MAP_SOURCE, TerraserverMapSourcePrivate))
	47
e76eccdc GB	48	/* properties */
	49	enum
	50	{
	51	PROP_0,
	52
	53	PROP_TYPE,
	54	};
	55
f6411015	56	G_DEFINE_TYPE (TerraserverMapSource, terraserver_map_source, VIK_TYPE_MAP_SOURCE_DEFAULT);
c9c9e658 GB	57
c9c9e658 GB	58	static void
3a84e537	59	terraserver_map_source_init (TerraserverMapSource *self)
c9c9e658 GB	60	{
c9c9e658 GB	61	/* initialize the object here */
31f3c5e7 GB	62	g_object_set (G_OBJECT (self),
	63	"tilesize-x", 200,
	64	"tilesize-y", 200,
	65	"drawmode", VIK_VIEWPORT_DRAWMODE_UTM,
	66	NULL);
c9c9e658 GB	67	}
	68
	69	static void
	70	terraserver_map_source_finalize (GObject *object)
	71	{
	72	/* TODO: Add deinitalization code here */
	73
	74	G_OBJECT_CLASS (terraserver_map_source_parent_class)->finalize (object);
	75	}
	76
e76eccdc GB	77	static void
	78	terraserver_map_source_set_property (GObject *object,
	79	guint property_id,
	80	const GValue *value,
	81	GParamSpec *pspec)
	82	{
	83	TerraserverMapSource *self = TERRASERVER_MAP_SOURCE (object);
	84	TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE (self);
	85
	86	switch (property_id)
	87	{
	88	case PROP_TYPE:
	89	priv->type = g_value_get_uint (value);
	90	break;
	91
	92	default:
	93	/* We don't have any other property... */
	94	G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
	95	break;
	96	}
	97	}
	98
	99	static void
	100	terraserver_map_source_get_property (GObject *object,
	101	guint property_id,
	102	GValue *value,
	103	GParamSpec *pspec)
	104	{
	105	TerraserverMapSource *self = TERRASERVER_MAP_SOURCE (object);
	106	TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE (self);
	107
	108	switch (property_id)
	109	{
	110	case PROP_TYPE:
	111	g_value_set_uint (value, priv->type);
	112	break;
	113
	114	default:
	115	/* We don't have any other property... */
	116	G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
	117	break;
	118	}
	119	}
	120
c9c9e658 GB	121	static void
	122	terraserver_map_source_class_init (TerraserverMapSourceClass *klass)
	123	{
	124	GObjectClass* object_class = G_OBJECT_CLASS (klass);
a3319e11	125	VikMapSourceClass* grandparent_class = VIK_MAP_SOURCE_CLASS (klass);
f66ea3ec	126	VikMapSourceDefaultClass* parent_class = VIK_MAP_SOURCE_DEFAULT_CLASS (klass);
e76eccdc GB	127	GParamSpec *pspec = NULL;
	128
	129	object_class->set_property = terraserver_map_source_set_property;
	130	object_class->get_property = terraserver_map_source_get_property;
	131
c9c9e658	132	/* Overiding methods */
a3319e11 RN	133	grandparent_class->coord_to_mapcoord = _coord_to_mapcoord;
a3319e11 RN	134	grandparent_class->mapcoord_to_center_coord = _mapcoord_to_center_coord;
f66ea3ec GB	135
	136	parent_class->get_uri = _get_uri;
	137	parent_class->get_hostname = _get_hostname;
	138	parent_class->get_download_options = _get_download_options;
e76eccdc GB	139
	140	pspec = g_param_spec_uint ("type",
	141	"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);
	148
c9c9e658 GB	149	g_type_class_add_private (klass, sizeof (TerraserverMapSourcePrivate));
	150
	151	object_class->finalize = terraserver_map_source_finalize;
	152	}
	153
ef06c03a	154	#define TERRASERVER_SITE "msrmaps.com"
c9c9e658 GB	155	#define MARGIN_OF_ERROR 0.001
	156
	157	static int mpp_to_scale ( gdouble mpp, guint8 type )
	158	{
	159	mpp *= 4;
	160	gint t = (gint) mpp;
	161	if ( ABS(mpp - t) > MARGIN_OF_ERROR )
	162	return FALSE;
	163
	164	switch ( t ) {
	165	case 1: return (type == 4) ? 8 : 0;
	166	case 2: return (type == 4) ? 9 : 0;
	167	case 4: return (type != 2) ? 10 : 0;
	168	case 8: return 11;
	169	case 16: return 12;
	170	case 32: return 13;
	171	case 64: return 14;
	172	case 128: return 15;
	173	case 256: return 16;
	174	case 512: return 17;
	175	case 1024: return 18;
	176	case 2048: return 19;
	177	default: return 0;
	178	}
	179	}
	180
	181	static gdouble scale_to_mpp ( gint scale )
	182	{
	183	return pow(2,scale - 10);
	184	}
	185
	186	static gboolean
	187	_coord_to_mapcoord ( VikMapSource self, const VikCoord src, gdouble xmpp, gdouble ympp, MapCoord *dest )
	188	{
	189	g_return_val_if_fail(TERRASERVER_IS_MAP_SOURCE(self), FALSE);
	190
	191	TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE(self);
	192	int type = priv->type;
d3232158	193	if ( src->mode != VIK_COORD_UTM )
6c83cd7c	194	return FALSE;
c9c9e658 GB	195
	196	if ( xmpp != ympp )
	197	return FALSE;
	198
	199	dest->scale = mpp_to_scale ( xmpp, type );
	200	if ( ! dest->scale )
	201	return FALSE;
	202
	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;
	206	return TRUE;
	207	}
	208
	209	static void
	210	_mapcoord_to_center_coord ( VikMapSource self, MapCoord src, VikCoord *dest )
	211	{
	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;
	218	}
	219
f66ea3ec GB	220	static gchar *
f66ea3ec GB	221	_get_uri( VikMapSourceDefault self, MapCoord src )
c9c9e658	222	{
f66ea3ec	223	g_return_val_if_fail (TERRASERVER_IS_MAP_SOURCE(self), NULL);
c9c9e658	224
f66ea3ec	225	TerraserverMapSourcePrivate *priv = TERRASERVER_MAP_SOURCE_PRIVATE(self);
c9c9e658 GB	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 );
f66ea3ec GB	229	return uri;
f66ea3ec GB	230	}
c9c9e658	231
f66ea3ec GB	232	static gchar *
f66ea3ec GB	233	_get_hostname( VikMapSourceDefault *self )
825413ba	234	{
f66ea3ec GB	235	g_return_val_if_fail (TERRASERVER_IS_MAP_SOURCE(self), NULL);
	236
	237	return g_strdup( TERRASERVER_SITE );
825413ba SW	238	}
825413ba SW	239
f66ea3ec GB	240	static DownloadMapOptions *
f66ea3ec GB	241	_get_download_options( VikMapSourceDefault *self )
825413ba	242	{
f66ea3ec GB	243	g_return_val_if_fail (TERRASERVER_IS_MAP_SOURCE(self), NULL);
	244
	245	return &terraserver_options;
825413ba SW	246	}
825413ba SW	247
c9c9e658	248	TerraserverMapSource *
db03733a	249	terraserver_map_source_new_with_id (guint8 id, const char *label, int type)
c9c9e658	250	{
82aa018d GB	251	char *copyright = NULL;
	252	switch (type)
	253	{
	254	case 1:
	255	copyright = "© DigitalGlobe";
	256	break;
	257	case 2:
	258	copyright = "© LandVoyage";
	259	break;
	260	case 4:
	261	copyright = "© DigitalGlobe";
	262	break;
	263	default:
	264	g_critical("Houston, we've had a problem. type=%d", type);
	265	}
	266
	267	return g_object_new(TERRASERVER_TYPE_MAP_SOURCE,
	268	"id", id, "label", label, "type", type,
	269	"copyright", copyright,
	270	NULL);
825413ba	271	}