Moved source into separate src directory due to popular request

[GpsPrune.git] / tim / prune / gui / map / TileDownloader.java

diff --git a/tim/prune/gui/map/TileDownloader.java b/tim/prune/gui/map/TileDownloader.java
deleted file mode 100644 (file)
index 7c75400..0000000
--- a/tim/prune/gui/map/TileDownloader.java
+++ /dev/null
@@ -1,114 +0,0 @@
-package tim.prune.gui.map;
-
-import java.awt.Image;
-import java.awt.Toolkit;
-import java.io.IOException;
-import java.io.InputStream;
-import java.net.URL;
-import java.net.URLConnection;
-import java.util.HashSet;
-
-import tim.prune.GpsPrune;
-
-/**
- * Class to asynchronously download a tile from a url
- * and populate an Image object with the contents
- */
-public class TileDownloader implements Runnable
-{
-       private MapTileManager _manager = null;
-       private URL _url = null;
-       private int _layer = 0;
-       private int _x = 0, _y = 0;
-       private int _zoom = 0;
-       /** Hashset of all blocked / 404 tiles to avoid requesting them again */
-       private static final HashSet<String> BLOCKED_URLS = new HashSet<String>();
-       /** Hashset of all currently loading tiles to avoid requesting them again */
-       private static final HashSet<String> LOADING_URLS = new HashSet<String>();
-
-
-       /**
-        * Constructor (private)
-        * @param inManager parent manager for callback
-        * @param inUrl URL to load
-        * @param inLayer layer index from 0
-        * @param inX x coordinate of tile
-        * @param inY y coordinate of tile
-        * @param inZoom zoom level
-        */
-       private TileDownloader(MapTileManager inManager, URL inUrl, int inLayer, int inX, int inY, int inZoom)
-       {
-               _manager = inManager;
-               _url = inUrl;
-               _layer = inLayer;
-               _x = inX; _y = inY;
-               _zoom = inZoom;
-       }
-
-       /**
-        * Trigger a download in a new thread
-        * @param inManager manager to callback when image is loaded
-        * @param inUrl URL to load
-        * @param inLayer layer index from 0
-        * @param inX x coordinate of tile
-        * @param inY y coordinate of tile
-        * @param inZoom current zoom level
-        */
-       public static synchronized void triggerLoad(MapTileManager inManager, URL inUrl, int inLayer,
-               int inX, int inY, int inZoom)
-       {
-               if (inManager != null && inUrl != null)
-               {
-                       String url = inUrl.toString();
-                       // System.out.println("Trigger load: " + url);
-                       if (!BLOCKED_URLS.contains(url) && !LOADING_URLS.contains(url))
-                       {
-                               // System.out.println("Not blocked: " + url);
-                               LOADING_URLS.add(url);
-                               new Thread(new TileDownloader(inManager, inUrl, inLayer, inX, inY, inZoom)).start();
-                       }
-               }
-       }
-
-       /**
-        * Run method, called in separate thread
-        */
-       public void run()
-       {
-               InputStream in = null;
-               try
-               {
-                       // System.out.println("TD Running thread to get: " + _url.toString());
-                       // Set http user agent on connection
-                       URLConnection conn = _url.openConnection();
-                       conn.setRequestProperty("User-Agent", "GpsPrune v" + GpsPrune.VERSION_NUMBER);
-                       in = conn.getInputStream();
-                       int len = conn.getContentLength();
-                       if (len > 0)
-                       {
-                               byte[] data = new byte[len];
-                               int totalRead = 0;
-                               while (totalRead < len)
-                               {
-                                       int numRead = in.read(data, totalRead, len-totalRead);
-                                       totalRead += numRead;
-                               }
-                               Image tile = Toolkit.getDefaultToolkit().createImage(data);
-                               in.close();
-
-                               // Pass back to manager so it can be stored in its memory cache
-                               _manager.notifyImageLoaded(tile, _layer, _x, _y, _zoom);
-                       }
-               }
-               catch (IOException e)
-               {
-                       System.err.println("IOE: " + e.getClass().getName() + " - " + e.getMessage());
-                       synchronized(this.getClass())
-                       {
-                               BLOCKED_URLS.add(_url.toString());
-                       }
-                       try {in.close();} catch (Exception e2) {}
-               }
-               LOADING_URLS.remove(_url.toString());
-       }
-}