96 lines
2.3 KiB
Java
96 lines
2.3 KiB
Java
/*
|
|
* Copyright 2010, 2011, 2012 mapsforge.org
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify it under the
|
|
* terms of the GNU Lesser General Public License as published by the Free Software
|
|
* Foundation, either version 3 of the License, or (at your option) any later version.
|
|
*
|
|
* 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 Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License along with
|
|
* this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
package org.oscim.generator;
|
|
|
|
import org.oscim.renderer.MapRenderer;
|
|
import org.oscim.renderer.TileGenerator;
|
|
import org.oscim.utils.PausableThread;
|
|
|
|
/**
|
|
* A MapWorker uses a {@link TileGenerator} to generate map tiles. It runs in a
|
|
* separate thread to avoid blocking the UI thread.
|
|
*/
|
|
public class MapWorker extends PausableThread {
|
|
private final String THREAD_NAME;
|
|
private final JobQueue mJobQueue;
|
|
private final TileGenerator mMapGenerator;
|
|
private final MapRenderer mMapRenderer;
|
|
|
|
/**
|
|
* @param id
|
|
* thread id
|
|
* @param jobQueue
|
|
* ...
|
|
* @param tileGenerator
|
|
* ...
|
|
* @param mapRenderer
|
|
* ...
|
|
*/
|
|
public MapWorker(int id, JobQueue jobQueue, TileGenerator tileGenerator,
|
|
MapRenderer mapRenderer) {
|
|
super();
|
|
mJobQueue = jobQueue;
|
|
mMapGenerator = tileGenerator;
|
|
mMapRenderer = mapRenderer;
|
|
|
|
THREAD_NAME = "MapWorker" + id;
|
|
}
|
|
|
|
public TileGenerator getMapGenerator() {
|
|
return mMapGenerator;
|
|
}
|
|
|
|
@Override
|
|
protected void afterRun() {
|
|
// empty
|
|
}
|
|
|
|
@Override
|
|
protected void doWork() {
|
|
JobTile tile = mJobQueue.poll();
|
|
|
|
if (tile == null)
|
|
return;
|
|
|
|
// Log.d("...", "load: " + tile);
|
|
|
|
boolean success = mMapGenerator.executeJob(tile);
|
|
|
|
if (!isInterrupted() && success) {
|
|
mMapRenderer.passTile(tile);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
protected String getThreadName() {
|
|
return THREAD_NAME;
|
|
}
|
|
|
|
@Override
|
|
protected void takeabreak() {
|
|
mMapGenerator.getMapDatabase().cancel();
|
|
}
|
|
|
|
@Override
|
|
protected int getThreadPriority() {
|
|
return (Thread.NORM_PRIORITY + Thread.MIN_PRIORITY) / 3;
|
|
}
|
|
|
|
@Override
|
|
protected boolean hasWork() {
|
|
return !mJobQueue.isEmpty();
|
|
}
|
|
}
|