489f07dd5d
- pass map<key,val> as settings to db open instead of mapfile - started to clean up this 'get start position' mess
79 lines
2.1 KiB
Java
79 lines
2.1 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.mapsforge.android.mapgenerator;
|
|
|
|
//import static org.mapsforge.android.mapgenerator.JobTile.LOADING;
|
|
|
|
import java.util.ArrayList;
|
|
import java.util.PriorityQueue;
|
|
|
|
/**
|
|
* A JobQueue keeps the list of pending jobs for a MapView and prioritizes them.
|
|
*/
|
|
public class JobQueue {
|
|
private static final int INITIAL_CAPACITY = 64;
|
|
|
|
private PriorityQueue<JobTile> mPriorityQueue;
|
|
|
|
/**
|
|
*/
|
|
public JobQueue() {
|
|
mPriorityQueue = new PriorityQueue<JobTile>(INITIAL_CAPACITY);
|
|
}
|
|
|
|
/**
|
|
* @param tiles
|
|
* the job to be added to this queue.
|
|
*/
|
|
public synchronized void setJobs(ArrayList<JobTile> tiles) {
|
|
mPriorityQueue.clear();
|
|
// mPriorityQueue.addAll(tiles);
|
|
for (int i = 0, n = tiles.size(); i < n; i++) {
|
|
JobTile tile = tiles.get(i);
|
|
// tile.state = LOADING;
|
|
tile.isLoading = true;
|
|
mPriorityQueue.offer(tile);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Removes all jobs from this queue.
|
|
*/
|
|
public synchronized void clear() {
|
|
for (int i = 0, n = mPriorityQueue.size(); i < n; i++) {
|
|
JobTile tile = mPriorityQueue.poll();
|
|
// tile.state = 0;
|
|
tile.isLoading = false;
|
|
}
|
|
mPriorityQueue.clear();
|
|
}
|
|
|
|
/**
|
|
* @return true if this queue contains no jobs, false otherwise.
|
|
*/
|
|
public synchronized boolean isEmpty() {
|
|
return mPriorityQueue.isEmpty();
|
|
}
|
|
|
|
/**
|
|
* @return the most important job from this queue or null, if empty.
|
|
*/
|
|
public synchronized JobTile poll() {
|
|
JobTile tile = mPriorityQueue.poll();
|
|
|
|
return tile;
|
|
}
|
|
}
|