import java.io.*;
import java.util.*;
-public abstract class AltosMapTile implements AltosFontListener {
- AltosMapTileListener listener;
+public abstract class AltosMapTile implements AltosFontListener, AltosMapStoreListener {
+ LinkedList<AltosMapTileListener> listeners = new LinkedList<AltosMapTileListener>();
public AltosLatLon upper_left, center;
public int px_size;
int zoom;
int maptype;
int scale;
+ private AltosMapCache cache;
public AltosMapStore store;
- public AltosMapCache cache;
public int status;
- static public final int success = 0;
- static public final int loading = 1;
- static public final int failed = 2;
- static public final int bad_request = 3;
- static public final int forbidden = 4;
+ static public final int loaded = 0; /* loaded from file */
+ static public final int fetched = 1; /* downloaded to file */
+ static public final int fetching = 2; /* downloading from net */
+ static public final int failed = 3; /* loading from file failed */
+ static public final int bad_request = 4;/* downloading failed */
+ static public final int forbidden = 5; /* downloading failed */
private File map_file() {
double lat = center.lat;
public void font_size_changed(int font_size) {
}
- public void set_status(int status) {
+ private synchronized void notify_listeners(int status) {
this.status = status;
- listener.notify_tile(this, status);
+ for (AltosMapTileListener listener : listeners)
+ listener.notify_tile(this, status);
}
- public void notify_image(AltosImage image) {
- listener.notify_tile(this, status);
+ public void notify_store(AltosMapStore store, int status) {
+// System.out.printf("AltosMapTile.notify_store %d\n", status);
+ notify_listeners(status);
}
- public int store_status() {
- return store.status();
+ public void notify_image(AltosImage image) {
+ if (image == null)
+ status = failed;
+ else
+ status = loaded;
+ notify_listeners(status);
}
- public void add_store_listener(AltosMapStoreListener listener) {
- store.add_listener(listener);
+ public abstract void paint(AltosMapTransform t);
+
+ public AltosImage get_image() {
+ if (cache == null)
+ return null;
+ return cache.get(this);
}
- public void remove_store_listener(AltosMapStoreListener listener) {
- store.remove_listener(listener);
+ public synchronized void add_listener(AltosMapTileListener listener) {
+ if (!listeners.contains(listener))
+ listeners.add(listener);
+ listener.notify_tile(this, status);
}
- public abstract void paint(AltosMapTransform t);
+ public synchronized void remove_listener(AltosMapTileListener listener) {
+ listeners.remove(listener);
+ }
- public AltosMapTile(AltosMapTileListener listener, AltosLatLon upper_left, AltosLatLon center, int zoom, int maptype, int px_size, int scale) {
- this.listener = listener;
+ public AltosMapTile(AltosMapCache cache, AltosLatLon upper_left, AltosLatLon center, int zoom, int maptype, int px_size, int scale) {
+ this.cache = cache;
this.upper_left = upper_left;
- this.cache = listener.cache();
while (center.lon < -180.0)
center.lon += 360.0;
this.px_size = px_size;
this.scale = scale;
- status = AltosMapTile.loading;
store = AltosMapStore.get(map_url(), map_file());
+ store.add_listener(this);
}
- public AltosMapTile(AltosMapTileListener listener, AltosLatLon upper_left, AltosLatLon center, int zoom, int maptype, int px_size) {
- this(listener, upper_left, center, zoom, maptype, px_size, 1);
+ public AltosMapTile(AltosMapCache cache, AltosLatLon upper_left, AltosLatLon center, int zoom, int maptype, int px_size) {
+ this(cache, upper_left, center, zoom, maptype, px_size, 1);
}
}