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change memory usage in map panel

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git-svn-id: https://osmand.googlecode.com/svn/trunk@83 e29c36b1-1cfa-d876-8d93-3434fc2bb7b8
This commit is contained in:
Victor Shcherb 2010-05-26 15:48:34 +00:00
parent 2669af71a2
commit 30641e9ce6
1 changed files with 19 additions and 7 deletions
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26
DataExtractionOSM/src/com/osmand/swing/MapPanel.java
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@ -170,6 +170,8 @@ public class MapPanel extends JPanel implements IMapDownloaderCallback {
public MapPanel(File fileWithTiles) {
ImageIO.setUseCache(false);
tilesLocation = fileWithTiles;
LatLon defaultLocation = DataExtractionSettings.getSettings().getDefaultLocation();
latitude = defaultLocation.getLatitude();
@ -315,20 +317,30 @@ public class MapPanel extends JPanel implements IMapDownloaderCallback {
String file = getFileForImage(x, y, zoom, map.getTileFormat());
if(cache.get(file) == null){
File en = new File(tilesLocation, file);
if(cache.size() > 1000){
if(cache.size() > 100){
ArrayList<String> list = new ArrayList<String>(cache.keySet());
for(int i=0; i<list.size(); i+=2){
cache.remove(list.get(i));
Image remove = cache.remove(list.get(i));
remove.flush();
}
if(log.isInfoEnabled()){
log.info("Before running gc on map tiles. Total Memory : " + (Runtime.getRuntime().totalMemory() >> 20) + " Mb. Used memory : "
+ ((Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()) >> 20) + " Mb");
}
System.gc();
if(log.isInfoEnabled()){
log.info("After running gc on map tiles. Total Memory : " + (Runtime.getRuntime().totalMemory() >> 20) + " Mb. Used memory : "
+ ((Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()) >> 20) + " Mb");
}
}
if (!downloader.isFileCurrentlyDownloaded(en)) {
if (en.exists()) {
long time = System.currentTimeMillis();
// long time = System.currentTimeMillis();
try {
cache.put(file, ImageIO.read(en));
if (log.isDebugEnabled()) {
log.debug("Loaded file : " + file + " " + (System.currentTimeMillis() - time) + " ms");
}
// if (log.isDebugEnabled()) {
// log.debug("Loaded file : " + file + " " + (System.currentTimeMillis() - time) + " ms");
// }
} catch (IIOException e) {
log.error("Eror reading png " + x + " " + y + " zoom : " + zoom, e);
}
@ -511,7 +523,7 @@ public class MapPanel extends JPanel implements IMapDownloaderCallback {
}
private void updateLocationLabel(){
gpsLocation.setText(MessageFormat.format("Lat : {0}, lon : {1}, zoom : {2}", latitude, longitude, zoom));
gpsLocation.setText(MessageFormat.format("Lat : {0,number,#.####}, lon : {1,number,#.####}, zoom : {2}", latitude, longitude, zoom));
}
protected void fireMapLocationListeners(){