import java.io.*;
import java.net.*;
-public class AltosUIMapCache {
+public class AltosUIMapCache implements AltosUIMapCacheListener {
static final int success = 0;
static final int loading = 1;
static final int failed = 2;
static final int bad_request = 3;
static final int forbidden = 4;
- static final int min_cache_size = 9;
- static final int max_cache_size = 24;
+ int min_cache_size; /* configured minimum cache size */
+ int cache_size; /* current cache size */
+ int requested_cache_size; /* cache size computed by application */
private Object fetch_lock = new Object();
private Object cache_lock = new Object();
- int cache_size = min_cache_size;
-
AltosUIMapImage[] images = new AltosUIMapImage[cache_size];
long used;
public void set_cache_size(int new_size) {
+
+ requested_cache_size = new_size;
+
if (new_size < min_cache_size)
new_size = min_cache_size;
- if (new_size > max_cache_size)
- new_size = max_cache_size;
+
if (new_size == cache_size)
return;
}
}
+ public void map_cache_changed(int map_cache) {
+ min_cache_size = map_cache;
+
+ set_cache_size(requested_cache_size);
+ }
+
+ public void dispose() {
+ AltosUIPreferences.unregister_map_cache_listener(this);
+
+ for (int i = 0; i < cache_size; i++) {
+ AltosUIMapImage image = images[i];
+
+ if (image != null)
+ image.flush();
+ }
+ }
+
public AltosUIMapCache() {
+ min_cache_size = AltosUIPreferences.map_cache();
+
+ set_cache_size(0);
+
+ AltosUIPreferences.register_map_cache_listener(this);
}
}