On options change set 'clearMap' flag instead of direct clearAndRedraw

src/org/oscim/renderer/GLRenderer.java

@@ -563,7 +563,7 @@ public class GLRenderer implements GLSurfaceView.Renderer {
 
 	@Override
 	public void onSurfaceChanged(GL10 glUnused, int width, int height) {
-		Log.d(TAG, "SurfaceChanged:" + mNewSurface + " " + width + " " + height);
+		Log.d(TAG, "SurfaceChanged:" + mNewSurface + " " + width + "x" + height);
 
 		if (width <= 0 || height <= 0)
 			return;

src/org/oscim/renderer/TileManager.java

@@ -51,10 +51,8 @@ public class TileManager {
 
 	private final MapView mMapView;
 	private final MapViewPosition mMapViewPosition;
-	private final MapPosition mMapPosition;
+
 	private boolean mInitialized;
-	private int mWidth = 0;
-	private int mHeight = 0;
 
 	// cache for all tiles
 	private MapTile[] mTiles;
@@ -85,7 +83,6 @@ public class TileManager {
 	public TileManager(MapView mapView) {
 		mMapView = mapView;
 		mMapViewPosition = mapView.getMapViewPosition();
-		mMapPosition = new MapPosition();
 		mJobs = new ArrayList<JobTile>();
 		mTiles = new MapTile[GLRenderer.CACHE_TILES];
 
@@ -99,32 +96,16 @@ public class TileManager {
 
 	public void destroy() {
 		// there might be some leaks in here
-		// ... free pools
+		// ... free static pools
 	}
 
-	/**
+	public synchronized void init(int width, int height) {
-	 * Update list of visible tiles and passes them to TileManager, when not
-	 * available tiles are created and added to JobQueue (mapView.addJobs) for
-	 * loading by TileGenerator class
-	 *
-	 * @param clear
-	 *            whether to clear and reload all tiles
-	 */
-	public synchronized void updateMap(final boolean clear) {
-		boolean changedPos = false;
 
-		if (mMapView == null)
+		// sync with GLRender thread
-			return;
+		// ... and labeling thread?
-
-		if (clear || !mInitialized) {
-			// make sure onDrawFrame is not running
-			// - and labeling thread?
 		GLRenderer.drawlock.lock();
 
-			// clear all tiles references
+		if (mInitialized) {
-			Log.d(TAG, "CLEAR " + mInitialized);
-
-			if (clear) {
 			// pass VBOs and VertexItems back to pools
 			for (int i = 0; i < mTilesSize; i++)
 				clearTile(mTiles[i]);
@@ -134,48 +115,64 @@ public class TileManager {
 			VertexPool.init();
 		}
 
+		// clear cache index
 		QuadTree.init();
 
+		// clear references to cached MapTiles
 		Arrays.fill(mTiles, null);
 		mTilesSize = 0;
 		mTilesCount = 0;
 
+		// clear all references to previous tiles
 		for (TileSet td : mTileSets) {
 			Arrays.fill(td.tiles, null);
 			td.cnt = 0;
 		}
 
-			// set up TileData arrays that are passed to gl-thread
+		// set up TileSet large enough to hold current tiles
-			int num = Math.max(mWidth, mHeight);
+		int num = Math.max(width, height);
 		int size = Tile.TILE_SIZE >> 1;
 		int numTiles = (num * num) / (size * size) * 4;
 		mNewTiles = new TileSet(numTiles);
 		mCurrentTiles = new TileSet(numTiles);
+		Log.d(TAG, "max tiles: " + numTiles);
 
-			// make sure mMapPosition will be updated
-			mMapPosition.zoomLevel = -1;
 		mInitialized = true;
 
 		GLRenderer.drawlock.unlock();
 	}
 
-		MapPosition mapPosition = mMapPosition;
+	/**
-		float[] coords = mTileCoords;
+	 * Update list of visible tiles and passes them to TileManager, when not
-
+	 * available tiles are created and added to JobQueue (mapView.addJobs) for
-		synchronized (mMapViewPosition) {
+	 * loading by TileGenerator class
-			changedPos = mMapViewPosition.getMapPosition(mapPosition);
+	 *
-			mMapViewPosition.getMapViewProjection(coords);
+	 * @param mapPosition
-		}
+	 *            current MapPosition
-
+	 */
-		if (changedPos) {
+	public synchronized void updateMap(MapPosition mapPosition) {
-			mMapView.render();
+		if (!mInitialized) {
-		} else {
+			Log.d(TAG, "not initialized");
 			return;
 		}
 
+		//MapPosition mapPosition = mMapPosition;
+		float[] coords = mTileCoords;
+
+		//synchronized (mMapViewPosition) {
+		//	changedPos = mMapViewPosition.getMapPosition(mapPosition);
+		mMapViewPosition.getMapViewProjection(coords);
+		//}
+
+		//if (changedPos) {
+		//	mMapView.render();
+		//} else {
+		//	return;
+		//}
+
 		// load some tiles more than currently visible
 		// TODO limit how many more...
-		float scale = mapPosition.scale * 0.5f;
+		float scale = mapPosition.scale * 0.7f;
 		float px = (float) mapPosition.x;
 		float py = (float) mapPosition.y;
 
@@ -590,13 +587,6 @@ public class TileManager {
 		return true;
 	}
 
-	public void onSizeChanged(int w, int h) {
-		Log.d(TAG, "onSizeChanged" + w + " " + h);
-
-		mWidth = w;
-		mHeight = h;
-	}
-
 	private final ScanBox mScanBox = new ScanBox() {
 		@Override
 		public void setVisible(int y, int x1, int x2) {

src/org/oscim/view/MapView.java

@@ -98,7 +98,10 @@ public class MapView extends RelativeLayout {
 	private String mRenderTheme;
 	private DebugSettings mDebugSettings;
 
-	private boolean mClearTiles;
+	private boolean mClearMap;
+
+	private int mWidth;
+	private int mHeight;
 
 	// FIXME: keep until old pbmap reader is removed
 	public static boolean enableClosePolygons = false;
@@ -198,9 +201,41 @@ public class MapView extends RelativeLayout {
 
 		//		if (testRegionZoom)
 		//			mRegionLookup = new RegionLookup(this);
+		clearMap();
 
 	}
 
+	@Override
+	public boolean onTouchEvent(MotionEvent motionEvent) {
+		// mMapZoomControlsjonMapViewTouchEvent(motionEvent.getAction()
+		// & MotionEvent.ACTION_MASK);
+
+		if (this.isClickable())
+			return mTouchEventHandler.handleMotionEvent(motionEvent);
+
+		return false;
+	}
+
+	@Override
+	protected synchronized void onSizeChanged(int width, int height,
+			int oldWidth, int oldHeight) {
+		Log.d(TAG, "onSizeChanged: " + width + "x" + height);
+
+		mJobQueue.clear();
+		mapWorkersPause(true);
+
+		super.onSizeChanged(width, height, oldWidth, oldHeight);
+
+		mWidth = width;
+		mHeight = height;
+
+		if (width != 0 && height != 0)
+			mMapViewPosition.setViewport(width, height);
+
+		clearMap();
+		mapWorkersProceed();
+	}
+
 	public void render() {
 		if (!MapView.debugFrameTime)
 			mGLView.requestRender();
@@ -244,44 +279,46 @@ public class MapView extends RelativeLayout {
 		return mRotationEnabled;
 	}
 
-	@Override
-	public boolean onTouchEvent(MotionEvent motionEvent) {
-		// mMapZoomControls.onMapViewTouchEvent(motionEvent.getAction()
-		// & MotionEvent.ACTION_MASK);
 
-		if (this.isClickable())
-			return mTouchEventHandler.handleMotionEvent(motionEvent);
-
-		return false;
-	}
 
 	/**
 	 * Calculates all necessary tiles and adds jobs accordingly.
 	 *
-	 * @param changedPos TODO
+	 * @param forceRedraw TODO
 	 */
-	public void redrawMap(boolean changedPos) {
+	public void redrawMap(boolean forceRedraw) {
-		if (mPausing || this.getWidth() == 0 || this.getHeight() == 0)
+		if (mPausing || mWidth == 0 || mHeight == 0)
 			return;
 
-		//if (changedPos)
+		if (forceRedraw)
-		//	render();
+			render();
+
+		if (mClearMap){
+			mTileManager.init(mWidth, mHeight);
+			mClearMap = false;
+
+			// make sure mMapPosition will be updated
+			mMapPosition.zoomLevel = -1;
+
+			// TODO clear overlays
+		}
 
-		if (AndroidUtils.currentThreadIsUiThread()) {
 		boolean changed = mMapViewPosition.getMapPosition(mMapPosition);
 
+		//Log.d(TAG, "redraw " + changed + " " + forceRedraw);
+
+		// required when not changed?
+		if (AndroidUtils.currentThreadIsUiThread())
 			mOverlayManager.onUpdate(mMapPosition, changed);
+
+		if (changed) {
+			mTileManager.updateMap(mMapPosition);
 		}
-		mTileManager.updateMap(mClearTiles);
-		mClearTiles = false;
 	}
 
-	public void clearAndRedrawMap() {
+	private void clearMap(){
-		if (mPausing || this.getWidth() == 0 || this.getHeight() == 0)
+		// clear tile and overlay data before next draw
-			return;
+		mClearMap = true;
-
-		//if (AndroidUtils.currentThreadIsUiThread())
-		mTileManager.updateMap(true);
 	}
 
 	/**
@@ -291,7 +328,7 @@ public class MapView extends RelativeLayout {
 	public void setDebugSettings(DebugSettings debugSettings) {
 		mDebugSettings = debugSettings;
 		TileGenerator.setDebugSettings(debugSettings);
-		clearAndRedrawMap();
+		clearMap();
 	}
 
 	/**
@@ -332,13 +369,13 @@ public class MapView extends RelativeLayout {
 	 *
 	 * @param options
 	 *            the new MapDatabase options.
-	 * @return ...
+	 * @return true if MapDatabase changed
 	 */
 	public boolean setMapDatabase(MapOptions options) {
 		if (debugDatabase)
 			return false;
 
-		Log.i(TAG, "setMapDatabase " + options.db.name());
+		Log.i(TAG, "setMapDatabase: " + options.db.name());
 
 		if (mMapOptions != null && mMapOptions.equals(options))
 			return true;
@@ -346,7 +383,6 @@ public class MapView extends RelativeLayout {
 		mapWorkersPause(true);
 
 		mJobQueue.clear();
-		mClearTiles = true;
 		mMapOptions = options;
 
 		for (int i = 0; i < mNumMapWorkers; i++) {
@@ -370,6 +406,8 @@ public class MapView extends RelativeLayout {
 		else
 			MapView.enableClosePolygons = false;
 
+		clearMap();
+
 		mapWorkersProceed();
 
 		return true;
@@ -400,7 +438,9 @@ public class MapView extends RelativeLayout {
 		if (ret) {
 			mRenderTheme = internalRenderTheme.name();
 		}
-		clearAndRedrawMap();
+
+		clearMap();
+
 		return ret;
 	}
 
@@ -424,7 +464,8 @@ public class MapView extends RelativeLayout {
 		if (ret) {
 			mRenderTheme = renderThemePath;
 		}
-		clearAndRedrawMap();
+
+		clearMap();
 	}
 
 	private boolean setRenderTheme(Theme theme) {
@@ -456,26 +497,9 @@ public class MapView extends RelativeLayout {
 			}
 			mapWorkersProceed();
 		}
-
 		return false;
 	}
 
-	@Override
-	protected synchronized void onSizeChanged(int width, int height,
-			int oldWidth, int oldHeight) {
-
-		mJobQueue.clear();
-		mapWorkersPause(true);
-		Log.d(TAG, "onSizeChanged" + width + " " + height);
-		super.onSizeChanged(width, height, oldWidth, oldHeight);
-
-		if (width != 0 && height != 0)
-			mMapViewPosition.setViewport(width, height);
-
-		mTileManager.onSizeChanged(width, height);
-
-		mapWorkersProceed();
-	}
 
 	void destroy() {
 		for (MapWorker mapWorker : mMapWorkers) {