/* diversity-atlas.h - DiversityAtlas
 *
 * Copyright 2008 OpenMoko, Inc.
 * Authored by Chia-I Wu <olv@openmoko.com>
 *
 * This program 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 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef _DIVERSITY_ATLAS_H_
#define _DIVERSITY_ATLAS_H_

#define G_DISABLE_CAST_CHECKS

#include <glib-object.h>
#include <glib.h>

G_BEGIN_DECLS

#define DIVERSITY_TYPE_ATLAS		(diversity_atlas_get_type())
#define DIVERSITY_ATLAS(obj)		(G_TYPE_CHECK_INSTANCE_CAST((obj), DIVERSITY_TYPE_ATLAS, DiversityAtlas))
#define DIVERSITY_IS_ATLAS(obj)		(G_TYPE_CHECK_INSTANCE_TYPE((obj), DIVERSITY_TYPE_ATLAS))
#define DIVERSITY_ATLAS_GET_IFACE(obj)	(G_TYPE_INSTANCE_GET_INTERFACE((obj), DIVERSITY_TYPE_ATLAS, DiversityAtlasIface))

typedef struct _DiversityAtlas DiversityAtlas; /* dummy */
typedef struct _DiversityAtlasIface DiversityAtlasIface;

typedef enum _DiversityAtlasTileStatus DiversityAtlasTileStatus;

enum _DiversityAtlasTileStatus {
	DIVERSITY_ATLAS_TILE_STATUS_DONE,
	DIVERSITY_ATLAS_TILE_STATUS_CANCELLED,
	DIVERSITY_ATLAS_TILE_STATUS_TIMEOUT,
	DIVERSITY_ATLAS_TILE_STATUS_FAILED,
};

struct _DiversityAtlasIface {
	GTypeInterface base_iface;

	/* methods */
	const gchar **(*list_sources)(DiversityAtlas *atlas);
	gboolean (*set_source)(DiversityAtlas *atlas, const gchar *src);
	const gchar *(*get_source)(DiversityAtlas *atlas);

	/* list of tile numbers for each level */
	const guint *(*list_levels)(DiversityAtlas *atlas, gint *size);
	gboolean (*set_level)(DiversityAtlas *atlas, gint level);
	gint (*get_level)(DiversityAtlas *atlas);

	void (*get_tile_size)(DiversityAtlas *atlas, gint *width, gint *height);

	gboolean (*get_atlas_coord)(DiversityAtlas *atlas, gdouble lon, gdouble lat, gdouble *x, gdouble *y);
	gboolean (*get_world_coord)(DiversityAtlas *atlas, gdouble x, gdouble y, gdouble *lon, gdouble *lat);
	gchar *(*get_uri)(DiversityAtlas *atlas, gint x, gint y);

	const gchar *(*get_path)(DiversityAtlas *atlas);
	guint (*submit_tile)(DiversityAtlas *atlas, gint x, gint y, gboolean force);
	gboolean (*cancel_tile)(DiversityAtlas *atlas, guint tile_id);

	/* signals */
	void (*tile_completed)(DiversityAtlas *atlas, guint tile_id, DiversityAtlasTileStatus status);
	void (*area_added)(DiversityAtlas *atlas, const gchar *path);
	void (*area_removed)(DiversityAtlas *atlas, const gchar *path);
};

GType diversity_atlas_get_type(void) G_GNUC_CONST;

const gchar **diversity_atlas_list_sources(DiversityAtlas *atlas);
gboolean diversity_atlas_set_source(DiversityAtlas *atlas, const gchar *src);
const gchar *diversity_atlas_get_source(DiversityAtlas *atlas);

const guint *diversity_atlas_list_levels(DiversityAtlas *atlas, gint *size);
gboolean diversity_atlas_set_level(DiversityAtlas *atlas, gint level);
gint diversity_atlas_get_level(DiversityAtlas *atlas);

void diversity_atlas_get_tile_size(DiversityAtlas *atlas, gint *width, gint *height);

gboolean diversity_atlas_get_atlas_coord(DiversityAtlas *atlas, gdouble lon, gdouble lat, gdouble *x, gdouble *y);
gboolean diversity_atlas_get_world_coord(DiversityAtlas *atlas, gdouble x, gdouble y, gdouble *lon, gdouble *lat);
gchar *diversity_atlas_get_uri(DiversityAtlas *atlas, gint x, gint y);

const gchar *diversity_atlas_get_path(DiversityAtlas *atlas);
guint diversity_atlas_submit_tile(DiversityAtlas *atlas, gint x, gint y, gboolean force);
gboolean diversity_atlas_cancel_tile(DiversityAtlas *atlas, guint tile_id);

G_END_DECLS

#endif /* _DIVERSITY_ATLAS_H_ */