2 * Copyright © 2010 Anthony Towns <aj@erisian.com.au>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
18 package org.altusmetrum.altoslib_7;
23 import java.util.concurrent.*;
25 public class AltosMap implements AltosMapTileListener, AltosMapStoreListener {
27 public static final int px_size = 512;
29 public static final int maptype_hybrid = 0;
30 public static final int maptype_roadmap = 1;
31 public static final int maptype_satellite = 2;
32 public static final int maptype_terrain = 3;
33 public static final int maptype_default = maptype_hybrid;
35 public static final int default_zoom = 15;
36 public static final int min_zoom = 3;
37 public static final int max_zoom = 21;
39 public static final String[] maptype_names = {
46 public static final String[] maptype_labels = {
53 AltosMapInterface map_interface;
57 public AltosMapCache cache() { return cache; }
59 LinkedList<AltosMapMark> marks = new LinkedList<AltosMapMark>();
63 public AltosLatLon last_position;
65 boolean have_boost = false;
66 boolean have_landed = false;
68 ConcurrentHashMap<AltosPointInt,AltosMapTile> tiles = new ConcurrentHashMap<AltosPointInt,AltosMapTile>();
70 AltosLatLon load_centre = null;
71 AltosMapTileListener load_listener;
73 int zoom = AltosMap.default_zoom;
74 int maptype = AltosMap.maptype_default;
78 /* Milliseconds to wait after user action before auto-scrolling
80 static final long auto_scroll_delay = 20 * 1000;
82 public AltosMapTransform transform;
89 /* MapInterface wrapping functions */
91 public void repaint(int x, int y, int w, int h) {
92 map_interface.repaint(new AltosRectangle(x, y, w, h));
95 public void repaint(AltosMapRectangle damage, int pad) {
96 AltosRectangle r = transform.screen(damage);
97 repaint(r.x - pad, r.y - pad, r.width + pad * 2, r.height + pad * 2);
100 public void repaint() {
101 map_interface.repaint();
105 return map_interface.width();
108 public int height() {
109 return map_interface.height();
112 public AltosPointInt floor(AltosPointDouble point) {
113 return new AltosPointInt ((int) Math.floor(point.x / AltosMap.px_size) * AltosMap.px_size,
114 (int) Math.floor(point.y / AltosMap.px_size) * AltosMap.px_size);
117 public AltosPointInt ceil(AltosPointDouble point) {
118 return new AltosPointInt ((int) Math.ceil(point.x / AltosMap.px_size) * AltosMap.px_size,
119 (int) Math.ceil(point.y / AltosMap.px_size) * AltosMap.px_size);
122 public void notice_user_input() {
123 user_input_time = System.currentTimeMillis();
126 public boolean recent_user_input() {
127 return (System.currentTimeMillis() - user_input_time) < auto_scroll_delay;
130 public boolean far_from_centre(AltosLatLon lat_lon) {
132 if (centre == null || transform == null)
135 AltosPointDouble screen = transform.screen(lat_lon);
138 int dx = Math.abs ((int) (double) screen.x - width/2);
143 int height = height();
144 int dy = Math.abs ((int) (double) screen.y - height/2);
152 public void set_transform() {
153 if (centre != null) {
154 transform = new AltosMapTransform(width(), height(), zoom, centre);
159 private void set_zoom_label() {
160 map_interface.set_zoom_label(String.format("Zoom %d", get_zoom() - default_zoom));
164 public boolean set_zoom(int zoom) {
165 if (AltosMap.min_zoom <= zoom && zoom <= AltosMap.max_zoom && zoom != this.zoom) {
175 public int get_zoom() {
179 public boolean set_maptype(int maptype) {
180 if (maptype != this.maptype) {
181 this.maptype = maptype;
189 public void show(AltosState state, AltosListenerState listener_state) {
191 /* If insufficient gps data, nothing to update
193 AltosGPS gps = state.gps;
198 if (!gps.locked && gps.nsat < 4)
201 switch (state.state) {
202 case AltosLib.ao_flight_boost:
204 add_mark(gps.lat, gps.lon, state.state);
208 case AltosLib.ao_flight_landed:
210 add_mark(gps.lat, gps.lon, state.state);
217 AltosMapRectangle damage = path.add(gps.lat, gps.lon, state.state);
220 repaint(damage, AltosMapPath.stroke_width);
223 last_position = new AltosLatLon(gps.lat, gps.lon);
225 maybe_centre(gps.lat, gps.lon);
228 public void centre(AltosLatLon lat_lon) {
233 public void centre(double lat, double lon) {
234 centre(new AltosLatLon(lat, lon));
237 public void centre(AltosState state) {
238 if (!state.gps.locked && state.gps.nsat < 4)
240 centre(state.gps.lat, state.gps.lon);
243 public void maybe_centre(double lat, double lon) {
244 AltosLatLon lat_lon = new AltosLatLon(lat, lon);
245 if (centre == null || (!recent_user_input() && far_from_centre(lat_lon)))
249 public void add_mark(double lat, double lon, int state) {
250 synchronized(marks) {
251 AltosMapMark mark = map_interface.new_mark(lat, lon, state);
258 public void clear_marks() {
259 synchronized(marks) {
264 private void make_tiles() {
265 AltosPointInt upper_left;
266 AltosPointInt lower_right;
268 if (load_centre != null) {
269 AltosPointInt centre = floor(transform.point(load_centre));
271 upper_left = new AltosPointInt(centre.x - load_radius * AltosMap.px_size,
272 centre.y - load_radius * AltosMap.px_size);
273 lower_right = new AltosPointInt(centre.x + load_radius * AltosMap.px_size,
274 centre.y + load_radius * AltosMap.px_size);
276 upper_left = floor(transform.screen_point(new AltosPointInt(0, 0)));
277 lower_right = floor(transform.screen_point(new AltosPointInt(width(), height())));
279 LinkedList<AltosPointInt> to_remove = new LinkedList<AltosPointInt>();
281 for (AltosPointInt point : tiles.keySet()) {
282 if (point.x < upper_left.x || lower_right.x < point.x ||
283 point.y < upper_left.y || lower_right.y < point.y) {
284 to_remove.add(point);
288 for (AltosPointInt point : to_remove)
291 cache.set_cache_size((width() / AltosMap.px_size + 2) * (height() / AltosMap.px_size + 2));
293 for (int y = (int) upper_left.y; y <= lower_right.y; y += AltosMap.px_size) {
294 for (int x = (int) upper_left.x; x <= lower_right.x; x += AltosMap.px_size) {
295 AltosPointInt point = new AltosPointInt(x, y);
297 if (!tiles.containsKey(point)) {
298 AltosLatLon ul = transform.lat_lon(new AltosPointDouble(x, y));
299 AltosLatLon center = transform.lat_lon(new AltosPointDouble(x + AltosMap.px_size/2, y + AltosMap.px_size/2));
300 AltosMapTile tile = map_interface.new_tile(this, ul, center, zoom, maptype,
302 tiles.put(point, tile);
308 public void set_load_params(int new_zoom, int new_type, double lat, double lon, int radius, AltosMapTileListener listener) {
309 if (AltosMap.min_zoom <= new_zoom && new_zoom <= AltosMap.max_zoom)
312 load_centre = new AltosLatLon(lat, lon);
313 load_radius = radius;
314 load_listener = listener;
318 for (AltosMapTile tile : tiles.values()) {
319 tile.add_store_listener(this);
320 if (tile.store_status() != AltosMapTile.loading)
321 listener.notify_tile(tile, tile.store_status());
326 public String getName() {
330 public void paint() {
334 for (AltosMapTile tile : tiles.values())
335 tile.paint(transform);
337 synchronized(marks) {
338 for (AltosMapMark mark : marks)
339 mark.paint(transform);
343 path.paint(transform);
346 line.paint(transform);
349 /* AltosMapTileListener methods */
350 public synchronized void notify_tile(AltosMapTile tile, int status) {
351 for (AltosPointInt point : tiles.keySet()) {
352 if (tile == tiles.get(point)) {
353 AltosPointInt screen = transform.screen(point);
354 repaint(screen.x, screen.y, AltosMap.px_size, AltosMap.px_size);
359 /* AltosMapStoreListener methods */
360 public synchronized void notify_store(AltosMapStore store, int status) {
361 if (load_listener != null) {
362 for (AltosMapTile tile : tiles.values())
363 if (store.equals(tile.store))
364 load_listener.notify_tile(tile, status);
370 AltosPointInt drag_start;
372 private void drag(int x, int y) {
373 if (drag_start == null)
376 int dx = x - drag_start.x;
377 int dy = y - drag_start.y;
379 AltosLatLon new_centre = transform.screen_lat_lon(new AltosPointInt(width() / 2 - dx, height() / 2 - dy));
381 drag_start = new AltosPointInt(x, y);
384 private void drag_start(int x, int y) {
385 drag_start = new AltosPointInt(x, y);
388 private void line_start(int x, int y) {
390 line.pressed(new AltosPointInt(x, y), transform);
395 private void line(int x, int y) {
397 line.dragged(new AltosPointInt(x, y), transform);
402 public void touch_start(int x, int y, boolean is_drag) {
410 public void touch_continue(int x, int y, boolean is_drag) {
418 public AltosMap(AltosMapInterface map_interface) {
419 this.map_interface = map_interface;
420 cache = new AltosMapCache(map_interface);
421 line = map_interface.new_line();
422 path = map_interface.new_path();