+/*
+ * Copyright © 2010 Anthony Towns <aj@erisian.com.au>
+ *
+ * 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.lang.*;
+import java.util.*;
+import java.util.concurrent.*;
+
+public class AltosMap implements AltosMapTileListener, AltosMapStoreListener {
+
+ public static final int px_size = 512;
+
+ public static final int maptype_hybrid = 0;
+ public static final int maptype_roadmap = 1;
+ public static final int maptype_satellite = 2;
+ public static final int maptype_terrain = 3;
+ public static final int maptype_default = maptype_hybrid;
+
+ public static final int default_zoom = 15;
+ public static final int min_zoom = 3;
+ public static final int max_zoom = 21;
+
+ public static final String[] maptype_names = {
+ "hybrid",
+ "roadmap",
+ "satellite",
+ "terrain"
+ };
+
+ public static final String[] maptype_labels = {
+ "Hybrid",
+ "Roadmap",
+ "Satellite",
+ "Terrain"
+ };
+
+ AltosMapInterface map_interface;
+
+ AltosMapCache cache;
+
+ public AltosMapCache cache() { return cache; }
+
+ LinkedList<AltosMapMark> marks = new LinkedList<AltosMapMark>();
+
+ AltosMapPath path;
+ AltosMapLine line;
+ public AltosLatLon last_position;
+
+ boolean have_boost = false;
+ boolean have_landed = false;
+
+ ConcurrentHashMap<AltosPointInt,AltosMapTile> tiles = new ConcurrentHashMap<AltosPointInt,AltosMapTile>();
+ int load_radius;
+ AltosLatLon load_centre = null;
+ AltosMapTileListener load_listener;
+
+ int zoom = AltosMap.default_zoom;
+ int maptype = AltosMap.maptype_default;
+
+ long user_input_time;
+
+ /* Milliseconds to wait after user action before auto-scrolling
+ */
+ static final long auto_scroll_delay = 20 * 1000;
+
+ public AltosMapTransform transform;
+ AltosLatLon centre;
+
+ public void reset() {
+ // nothing
+ }
+
+ /* MapInterface wrapping functions */
+
+ public void repaint(int x, int y, int w, int h) {
+ map_interface.repaint(new AltosRectangle(x, y, w, h));
+ }
+
+ public void repaint(AltosMapRectangle damage, int pad) {
+ AltosRectangle r = transform.screen(damage);
+ repaint(r.x - pad, r.y - pad, r.width + pad * 2, r.height + pad * 2);
+ }
+
+ public void repaint() {
+ map_interface.repaint();
+ }
+
+ public int width() {
+ return map_interface.width();
+ }
+
+ public int height() {
+ return map_interface.height();
+ }
+
+ public void debug(String format, Object ... arguments) {
+ map_interface.debug(format, arguments);
+ }
+
+ static public AltosPointInt floor(AltosPointDouble point) {
+ return new AltosPointInt ((int) Math.floor(point.x / AltosMap.px_size) * AltosMap.px_size,
+ (int) Math.floor(point.y / AltosMap.px_size) * AltosMap.px_size);
+ }
+
+ static public AltosPointInt ceil(AltosPointDouble point) {
+ return new AltosPointInt ((int) Math.ceil(point.x / AltosMap.px_size) * AltosMap.px_size,
+ (int) Math.ceil(point.y / AltosMap.px_size) * AltosMap.px_size);
+ }
+
+ public void notice_user_input() {
+ user_input_time = System.currentTimeMillis();
+ }
+
+ public boolean recent_user_input() {
+ return (System.currentTimeMillis() - user_input_time) < auto_scroll_delay;
+ }
+
+ public boolean has_centre() {
+ return centre != null;
+ }
+
+ public boolean far_from_centre(AltosLatLon lat_lon) {
+
+ if (centre == null || transform == null)
+ return true;
+
+ AltosPointDouble screen = transform.screen(lat_lon);
+
+ int width = width();
+ int dx = Math.abs ((int) (double) screen.x - width/2);
+
+ if (dx > width / 4)
+ return true;
+
+ int height = height();
+ int dy = Math.abs ((int) (double) screen.y - height/2);
+
+ if (dy > height / 4)
+ return true;
+
+ return false;
+ }
+
+ public void set_transform() {
+ if (centre != null) {
+ transform = new AltosMapTransform(width(), height(), zoom, centre);
+ repaint();
+ }
+ }
+
+ private void set_zoom_label() {
+ map_interface.set_zoom_label(String.format("Zoom %d", get_zoom() - default_zoom));
+ }
+
+
+ public boolean set_zoom(int zoom) {
+ notice_user_input();
+ if (AltosMap.min_zoom <= zoom && zoom <= AltosMap.max_zoom && zoom != this.zoom) {
+ this.zoom = zoom;
+ tiles.clear();
+ set_transform();
+ set_zoom_label();
+ return true;
+ }
+ return false;
+ }
+
+ public boolean set_zoom_centre(int zoom, AltosPointInt centre) {
+ AltosLatLon mouse_lat_lon = null;
+ boolean ret;
+
+ if (transform != null)
+ mouse_lat_lon = transform.screen_lat_lon(centre);
+
+ ret = set_zoom(zoom);
+
+ if (ret && mouse_lat_lon != null) {
+ AltosPointDouble new_mouse = transform.screen(mouse_lat_lon);
+
+ double dx = width()/2.0 - centre.x;
+ double dy = height()/2.0 - centre.y;
+
+ AltosLatLon new_centre = transform.screen_lat_lon(new AltosPointDouble(new_mouse.x + dx, new_mouse.y + dy));
+
+ centre(new_centre);
+ }
+
+ return ret;
+ }
+
+ public int get_zoom() {
+ return zoom;
+ }
+
+ public boolean set_maptype(int maptype) {
+ if (maptype != this.maptype) {
+ this.maptype = maptype;
+ tiles.clear();
+ repaint();
+ return true;
+ }
+ return false;
+ }
+
+ public void show(AltosState state, AltosListenerState listener_state) {
+
+ /* If insufficient gps data, nothing to update
+ */
+ AltosGPS gps = state.gps;
+
+ if (gps == null)
+ return;
+
+ if (!gps.locked && gps.nsat < 4)
+ return;
+
+ switch (state.state) {
+ case AltosLib.ao_flight_boost:
+ if (!have_boost) {
+ add_mark(gps.lat, gps.lon, state.state);
+ have_boost = true;
+ }
+ break;
+ case AltosLib.ao_flight_landed:
+ if (!have_landed) {
+ add_mark(gps.lat, gps.lon, state.state);
+ have_landed = true;
+ }
+ break;
+ }
+
+ if (path != null) {
+ AltosMapRectangle damage = path.add(gps.lat, gps.lon, state.state);
+
+ if (damage != null)
+ repaint(damage, AltosMapPath.stroke_width);
+ }
+
+ last_position = new AltosLatLon(gps.lat, gps.lon);
+
+ maybe_centre(gps.lat, gps.lon);
+ }
+
+ public void centre(AltosLatLon lat_lon) {
+ centre = lat_lon;
+ set_transform();
+ }
+
+ public void centre(double lat, double lon) {
+ centre(new AltosLatLon(lat, lon));
+ }
+
+ public void centre(AltosState state) {
+ if (!state.gps.locked && state.gps.nsat < 4)
+ return;
+ centre(state.gps.lat, state.gps.lon);
+ }
+
+ public void maybe_centre(double lat, double lon) {
+ AltosLatLon lat_lon = new AltosLatLon(lat, lon);
+ if (centre == null || (!recent_user_input() && far_from_centre(lat_lon)))
+ centre(lat_lon);
+ }
+
+ public void add_mark(double lat, double lon, int state) {
+ synchronized(marks) {
+ AltosMapMark mark = map_interface.new_mark(lat, lon, state);
+ if (mark != null)
+ marks.add(mark);
+ }
+ repaint();
+ }
+
+ public void clear_marks() {
+ synchronized(marks) {
+ marks.clear();
+ }
+ }
+
+ private void make_tiles() {
+ AltosPointInt upper_left;
+ AltosPointInt lower_right;
+
+ if (load_centre != null) {
+ AltosPointInt centre = floor(transform.point(load_centre));
+
+ upper_left = new AltosPointInt(centre.x - load_radius * AltosMap.px_size,
+ centre.y - load_radius * AltosMap.px_size);
+ lower_right = new AltosPointInt(centre.x + load_radius * AltosMap.px_size,
+ centre.y + load_radius * AltosMap.px_size);
+ } else {
+ upper_left = floor(transform.screen_point(new AltosPointInt(0, 0)));
+ lower_right = floor(transform.screen_point(new AltosPointInt(width(), height())));
+ }
+ for (AltosPointInt point : tiles.keySet()) {
+ if (point.x < upper_left.x || lower_right.x < point.x ||
+ point.y < upper_left.y || lower_right.y < point.y) {
+ tiles.remove(point);
+ }
+ }
+
+ cache.set_cache_size((width() / AltosMap.px_size + 2) * (height() / AltosMap.px_size + 2));
+
+ for (int y = (int) upper_left.y; y <= lower_right.y; y += AltosMap.px_size) {
+ for (int x = (int) upper_left.x; x <= lower_right.x; x += AltosMap.px_size) {
+ AltosPointInt point = new AltosPointInt(x, y);
+
+ if (!tiles.containsKey(point)) {
+ AltosLatLon ul = transform.lat_lon(point);
+ AltosLatLon center = transform.lat_lon(new AltosPointDouble(x + AltosMap.px_size/2, y + AltosMap.px_size/2));
+ AltosMapTile tile = map_interface.new_tile(this, ul, center, zoom, maptype, px_size);
+ tiles.put(point, tile);
+ }
+ }
+ }
+ }
+
+ public void set_load_params(int new_zoom, int new_type, double lat, double lon, int radius, AltosMapTileListener listener) {
+ if (AltosMap.min_zoom <= new_zoom && new_zoom <= AltosMap.max_zoom)
+ zoom = new_zoom;
+ maptype = new_type;
+ load_centre = new AltosLatLon(lat, lon);
+ load_radius = radius;
+ load_listener = listener;
+ centre(lat, lon);
+ tiles.clear();
+ make_tiles();
+ for (AltosMapTile tile : tiles.values()) {
+ tile.add_store_listener(this);
+ if (tile.store_status() != AltosMapTile.loading)
+ listener.notify_tile(tile, tile.store_status());
+ }
+ repaint();
+ }
+
+ public String getName() {
+ return "Map";
+ }
+
+ public void paint() {
+ if (centre != null)
+ make_tiles();
+
+ if (transform == null)
+ return;
+
+ for (AltosMapTile tile : tiles.values())
+ tile.paint(transform);
+
+ synchronized(marks) {
+ for (AltosMapMark mark : marks)
+ mark.paint(transform);
+ }
+
+ if (path != null)
+ path.paint(transform);
+
+ if (line != null)
+ line.paint(transform);
+ }
+
+ /* AltosMapTileListener methods */
+ public synchronized void notify_tile(AltosMapTile tile, int status) {
+ for (AltosPointInt point : tiles.keySet()) {
+ if (tile == tiles.get(point)) {
+ AltosPointInt screen = transform.screen(point);
+ repaint(screen.x, screen.y, AltosMap.px_size, AltosMap.px_size);
+ }
+ }
+ }
+
+ /* AltosMapStoreListener methods */
+ public synchronized void notify_store(AltosMapStore store, int status) {
+ if (load_listener != null) {
+ for (AltosMapTile tile : tiles.values())
+ if (store.equals(tile.store))
+ load_listener.notify_tile(tile, status);
+ }
+ }
+
+ /* UI elements */
+
+ AltosPointInt drag_start;
+
+ boolean dragged;
+
+ static final double drag_far = 20;
+
+ private void drag(int x, int y) {
+ if (drag_start == null)
+ return;
+
+ int dx = x - drag_start.x;
+ int dy = y - drag_start.y;
+
+ double distance = Math.hypot(dx, dy);
+
+ if (distance > drag_far)
+ dragged = true;
+
+ if (transform == null) {
+ debug("Transform not set in drag\n");
+ return;
+ }
+
+ AltosLatLon new_centre = transform.screen_lat_lon(new AltosPointInt(width() / 2 - dx, height() / 2 - dy));
+ centre(new_centre);
+ drag_start = new AltosPointInt(x, y);
+ }
+
+ private void drag_start(int x, int y) {
+ drag_start = new AltosPointInt(x, y);
+ dragged = false;
+ }
+
+ private void drag_stop(int x, int y) {
+ if (!dragged) {
+ if (transform == null) {
+ debug("Transform not set in stop\n");
+ return;
+ }
+ map_interface.select_object (transform.screen_lat_lon(new AltosPointInt(x,y)));
+ }
+ }
+
+ private void line_start(int x, int y) {
+ if (line != null) {
+ line.pressed(new AltosPointInt(x, y), transform);
+ repaint();
+ }
+ }
+
+ private void line(int x, int y) {
+ if (line != null) {
+ line.dragged(new AltosPointInt(x, y), transform);
+ repaint();
+ }
+ }
+
+ public void touch_start(int x, int y, boolean is_drag) {
+ notice_user_input();
+ if (is_drag)
+ drag_start(x, y);
+ else
+ line_start(x, y);
+ }
+
+ public void touch_continue(int x, int y, boolean is_drag) {
+ notice_user_input();
+ if (is_drag)
+ drag(x, y);
+ else
+ line(x, y);
+ }
+
+ public void touch_stop(int x, int y, boolean is_drag) {
+ notice_user_input();
+ if (is_drag)
+ drag_stop(x, y);
+ }
+
+ public AltosMap(AltosMapInterface map_interface) {
+ this.map_interface = map_interface;
+ cache = new AltosMapCache(map_interface);
+ line = map_interface.new_line();
+ path = map_interface.new_path();
+ set_zoom_label();
+ }
+}
projects / fw / altos / blobdiff