+++ /dev/null
-/*
- * Copyright (C) 2009-2010 Andy Spencer <andy753421@gmail.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 3 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, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef __GIS_TILE_H__
-#define __GIS_TILE_H__
-
-#include <glib.h>
-#include "gis-object.h"
-
-#define GIS_TYPE_TILE (gis_tile_get_type())
-
-GOBJECT_HEAD(
- GIS, TILE,
- Gis, Tile,
- gis, tile);
-
-struct _GisTile {
- GisObject parent_instance;
-
- /* Pointer to the tile data */
- gpointer data;
-
- /* North,South,East,West limits */
- struct {
- gdouble n,s,e,w;
- } edge;
-
- /* Pointers to parent/child nodes */
- GisTile *parent;
- GisTile *children[2][2];
-
- /* Last access time (for garbage collection) */
- time_t atime;
-};
-
-struct _GisTileClass {
- GisObjectClass parent_class;
-};
-
-typedef void (*GisTileLoadFunc)(GisTile *tile, gpointer user_data);
-typedef void (*GisTileFreeFunc)(GisTile *tile, gpointer user_data);
-
-/* Forech functions */
-#define gis_tile_foreach(tile, child) \
- for (int _x = 0; _x < G_N_ELEMENTS(tile->children); _x++) \
- for (int _y = 0; child = tile->children[_x][_y], \
- _y < G_N_ELEMENTS(tile->children[_x]); _y++) \
-
-#define gis_tile_foreach_index(tile, x, y) \
- for (x = 0; x < G_N_ELEMENTS(tile->children); x++) \
- for (y = 0; y < G_N_ELEMENTS(tile->children[x]); y++)
-
-/* Path to string table, keep in sync with tile->children */
-extern gchar *gis_tile_path_table[2][2];
-
-/* Allocate a new Tile */
-GisTile *gis_tile_new(GisTile *parent,
- gdouble n, gdouble s, gdouble e, gdouble w);
-
-/* Return a string representation of the tile's path */
-gchar *gis_tile_get_path(GisTile *child);
-
-/* Update a root tile */
-/* Based on eye distance (lat,lon,elev) */
-void gis_tile_update(GisTile *root,
- gdouble res, gint width, gint height,
- gdouble lat, gdouble lon, gdouble elev,
- GisTileLoadFunc load_func, gpointer user_data);
-
-/* Find the leaf tile containing lat-lon */
-GisTile *gis_tile_find(GisTile *root, gdouble lat, gdouble lon);
-
-/* Delete nodes that haven't been accessed since atime */
-GisTile *gis_tile_gc(GisTile *root, time_t atime,
- GisTileFreeFunc free_func, gpointer user_data);
-
-/* Free a tile and all it's children */
-void gis_tile_free(GisTile *root,
- GisTileFreeFunc free_func, gpointer user_data);
-
-#endif