X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=altoslib%2FAltosMapLoader.java;fp=altoslib%2FAltosMapLoader.java;h=5db20cf8cbe54fecd7eb0f01e1d323e0dd075328;hb=3b4e6da65158a434905dc652e46c69d2c38cea7f;hp=0000000000000000000000000000000000000000;hpb=ccd557c846eed37328d6799f36e61308bcbb678a;p=fw%2Faltos

diff --git a/altoslib/AltosMapLoader.java b/altoslib/AltosMapLoader.java
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+++ b/altoslib/AltosMapLoader.java
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+/*
+ * Copyright © 2015 Keith Packard <keithp@keithp.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; version 2 of the License.
+ *
+ * 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.
+ */
+
+package org.altusmetrum.altoslib_7;
+
+import java.io.*;
+import java.util.*;
+import java.text.*;
+import java.lang.Math;
+import java.net.URL;
+import java.net.URLConnection;
+
+public class AltosMapLoader implements AltosMapTileListener {
+	AltosMapLoaderListener	listener;
+
+	double	latitude, longitude;
+	int	min_z;
+	int	max_z;
+	int	cur_z;
+	int	all_types;
+	int	cur_type;
+	int	radius;
+
+	int	tiles_per_layer;
+	int	tiles_loaded;
+	int	layers_total;
+	int	layers_loaded;
+
+	AltosMap	map;
+	AltosMapCache	cache;
+
+	public void do_load() {
+		map.set_zoom(cur_z + AltosMap.default_zoom);
+		map.set_maptype(cur_type);
+		map.set_load_params(latitude, longitude, radius, this);
+	}
+
+	public int next_type(int start) {
+		int next_type;
+		for (next_type = start;
+		     next_type <= AltosMap.maptype_terrain && (all_types & (1 << next_type)) == 0;
+		     next_type++)
+			;
+		return next_type;
+	}
+
+	public void next_load() {
+		int next_type = next_type(cur_type + 1);
+
+		if (next_type > AltosMap.maptype_terrain) {
+			if (cur_z == max_z) {
+				return;
+			} else {
+				cur_z++;
+			}
+			next_type = next_type(0);
+		}
+		cur_type = next_type;
+		do_load();
+	}
+
+	private void start_load() {
+
+		cur_z = min_z;
+		int ntype = 0;
+
+		for (int t = AltosMap.maptype_hybrid; t <= AltosMap.maptype_terrain; t++)
+			if ((all_types & (1 << t)) != 0)
+				ntype++;
+		if (ntype == 0) {
+			all_types = (1 << AltosMap.maptype_hybrid);
+			ntype = 1;
+		}
+
+		cur_type = next_type(0);
+		tiles_per_layer = (radius * 2 + 1) * (radius * 2 + 1);
+		layers_total = (max_z - min_z + 1) * ntype;
+		layers_loaded = 0;
+		tiles_loaded = 0;
+
+		listener.loader_start(layers_total * tiles_per_layer);
+		do_load();
+	}
+
+	public void load(double latitude, double longitude, int min_z, int max_z, int radius, int all_types) {
+		this.latitude = latitude;
+		this.longitude = longitude;
+		this.min_z = min_z;
+		this.max_z = max_z;
+		this.radius = radius;
+		this.all_types = all_types;
+		start_load();
+	}
+
+	public synchronized void notify_tile(AltosMapTile tile, int status) {
+		boolean	do_next = false;
+		if (status == AltosMapTile.loading)
+			return;
+
+		if (layers_loaded >= layers_total)
+			return;
+
+		++tiles_loaded;
+
+		if (tiles_loaded == tiles_per_layer) {
+			tiles_loaded = 0;
+			++layers_loaded;
+			if (layers_loaded == layers_total) {
+				listener.loader_done(layers_total * tiles_per_layer);
+				return;
+			} else {
+				do_next = true;
+			}
+		}
+		listener.loader_notify(layers_loaded * tiles_per_layer + tiles_loaded,
+				       layers_total * tiles_per_layer, tile.store.file.toString());
+		if (do_next)
+			next_load();
+	}
+
+	public AltosMapCache cache() { return cache; }
+
+	public AltosMapLoader(AltosMap map, AltosMapCache cache,
+			      AltosMapLoaderListener listener) {
+		this.map = map;
+		this.cache = cache;
+		this.listener = listener;
+	}
+}