X-Git-Url: https://gitweb.fperrin.net/?a=blobdiff_plain;f=tim%2Fprune%2Fgui%2Fmap%2FMapTileManager.java;h=75f170a20f57df5ec5e84d3a2afa904a66d247e1;hb=4d5796d02a15808311c09448d79e6e7d1de9d636;hp=f7a281b1022ca8059a02e4fe9aef004431b464fc;hpb=649c5da6ee1bbc590699e11a92316ece2ea8512d;p=GpsPrune.git

diff --git a/tim/prune/gui/map/MapTileManager.java b/tim/prune/gui/map/MapTileManager.java
index f7a281b..75f170a 100644
--- a/tim/prune/gui/map/MapTileManager.java
+++ b/tim/prune/gui/map/MapTileManager.java
@@ -1,7 +1,6 @@
 package tim.prune.gui.map;
 
 import java.awt.Image;
-import java.awt.Toolkit;
 import java.awt.image.ImageObserver;
 import java.net.MalformedURLException;
 import java.net.URL;
@@ -24,6 +23,8 @@ public class MapTileManager implements ImageObserver
 	private int _numLayers = -1;
 	/** Current zoom level */
 	private int _zoom = 0;
+	/** Number of tiles in each direction for this zoom level */
+	private int _numTileIndices = 1;
 
 
 	/**
@@ -33,6 +34,8 @@ public class MapTileManager implements ImageObserver
 	public MapTileManager(MapCanvas inParent)
 	{
 		_parent = inParent;
+		// Adjust the index of the selected map source
+		adjustSelectedMap();
 		resetConfig();
 	}
 
@@ -45,6 +48,8 @@ public class MapTileManager implements ImageObserver
 	public void centreMap(int inZoom, int inTileX, int inTileY)
 	{
 		_zoom = inZoom;
+		// Calculate number of tiles = 2^^zoom
+		_numTileIndices = 1 << _zoom;
 		// Pass params onto all memory cachers
 		if (_tempCaches != null) {
 			for (int i=0; i<_tempCaches.length; i++) {
@@ -69,8 +74,9 @@ public class MapTileManager implements ImageObserver
 	public void clearMemoryCaches()
 	{
 		int numLayers = _mapSource.getNumLayers();
-		if (_tempCaches == null || _tempCaches.length != numLayers) {
-			// Ccahers don't match, so need to create the right number of them
+		if (_tempCaches == null || _tempCaches.length != numLayers)
+		{
+			// Cachers don't match, so need to create the right number of them
 			_tempCaches = new MemTileCacher[numLayers];
 			for (int i=0; i<numLayers; i++) {
 				_tempCaches[i] = new MemTileCacher();
@@ -96,6 +102,26 @@ public class MapTileManager implements ImageObserver
 		_numLayers = _mapSource.getNumLayers();
 	}
 
+	/**
+	 * Adjust the index of the selected map
+	 * (only required if config was loaded from a previous version of GpsPrune)
+	 */
+	private void adjustSelectedMap()
+	{
+		int sourceNum = Config.getConfigInt(Config.KEY_MAPSOURCE_INDEX);
+		int prevNumFixed = Config.getConfigInt(Config.KEY_NUM_FIXED_MAPS);
+		// Number of fixed maps not specified in version <=13, default to 6
+		if (prevNumFixed == 0) prevNumFixed = 6;
+		int currNumFixed = MapSourceLibrary.getNumFixedSources();
+		// Only need to do something if the number has changed
+		if (currNumFixed != prevNumFixed && (sourceNum >= prevNumFixed || sourceNum >= currNumFixed))
+		{
+			sourceNum += (currNumFixed - prevNumFixed);
+			Config.setConfigInt(Config.KEY_MAPSOURCE_INDEX, sourceNum);
+		}
+		Config.setConfigInt(Config.KEY_NUM_FIXED_MAPS, currNumFixed);
+	}
+
 	/**
 	 * @return the number of layers in the map
 	 */
@@ -112,6 +138,10 @@ public class MapTileManager implements ImageObserver
 	 */
 	public Image getTile(int inLayer, int inX, int inY)
 	{
+		if (inY < 0 || inY >= _numTileIndices) return null;
+		// Wrap tile indices which are too big or too small
+		inX = ((inX % _numTileIndices) + _numTileIndices) % _numTileIndices;
+
 		// Check first in memory cache for tile
 		MemTileCacher tempCache = _tempCaches[inLayer]; // Should probably guard against nulls and array indexes here
 		Image tile = tempCache.getTile(inX, inY);
@@ -129,7 +159,7 @@ public class MapTileManager implements ImageObserver
 			if (tile != null)
 			{
 				// Pass tile to memory cache
-				tempCache.setTile(tile, inX, inY);
+				tempCache.setTile(tile, inX, inY, _zoom);
 				if (tile.getWidth(this) > 0) {return tile;}
 				return null;
 			}
@@ -148,10 +178,9 @@ public class MapTileManager implements ImageObserver
 				else
 				{
 					// Load image asynchronously, using observer
-					tile = Toolkit.getDefaultToolkit().createImage(tileUrl);
-					// Pass to memory cache
-					_tempCaches[inLayer].setTile(tile, inX, inY);
-					if (tile.getWidth(this) > 0) {return tile;}
+					// tile = Toolkit.getDefaultToolkit().createImage(tileUrl);
+					// In order to set the http user agent, need to use a TileDownloader instead
+					TileDownloader.triggerLoad(this, tileUrl, inLayer, inX, inY, _zoom);
 				}
 			}
 			catch (MalformedURLException urle) {} // ignore
@@ -178,4 +207,26 @@ public class MapTileManager implements ImageObserver
 		}
 		return !loaded;
 	}
+
+	/**
+	 * Callback method from TileDownloader to let us know that an image has been loaded
+	 * @param inTile Loaded Image object
+	 * @param inLayer layer index from 0
+	 * @param inX x coordinate of tile
+	 * @param inY y coordinate of tile
+	 * @param inZoom zoom level of loaded image
+	 */
+	public void notifyImageLoaded(Image inTile, int inLayer, int inX, int inY, int inZoom)
+	{
+		if (inTile != null)
+		{
+			MemTileCacher tempCache = _tempCaches[inLayer]; // Should probably guard against nulls and array indexes here
+			if (tempCache.getTile(inX, inY) == null)
+			{
+				// Check with cache that the zoom level is still valid
+				tempCache.setTile(inTile, inX, inY, inZoom);
+				inTile.getWidth(this); // trigger imageUpdate when image is ready
+			}
+		}
+	}
 }