rename COORD_MULTIPLIER to COORD_SCALE

src/org/oscim/renderer/GLRenderer.java

@@ -58,7 +58,7 @@ public class GLRenderer implements GLSurfaceView.Renderer {
 	private static final int CACHE_TILES_MAX = 250;
 	private static final int LIMIT_BUFFERS = 16 * MB;
 
-	public static final float COORD_MULTIPLIER = 8.0f;
+	public static final float COORD_SCALE = 8.0f;
 
 	static int CACHE_TILES = CACHE_TILES_MAX;
 

src/org/oscim/renderer/LineRenderer.java

@@ -42,7 +42,7 @@ public final class LineRenderer {
 
 	// factor to normalize extrusion vector and scale to coord scale
 	private final static float COORD_SCALE_BY_DIR_SCALE =
-			GLRenderer.COORD_MULTIPLIER / LineLayer.DIR_SCALE;
+			GLRenderer.COORD_SCALE / LineLayer.DIR_SCALE;
 
 	// shader handles
 	private static int[] lineProgram = new int[2];

src/org/oscim/renderer/layer/ExtrusionLayer.java

@@ -36,7 +36,7 @@ import android.util.Log;
  */
 public class ExtrusionLayer extends Layer {
 	private final static String TAG = ExtrusionLayer.class.getName();
-	private static final float S = GLRenderer.COORD_MULTIPLIER;
+	private static final float S = GLRenderer.COORD_SCALE;
 	private int mNumVertices = 0;
 	private final VertexPoolItem mVertices;
 	private VertexPoolItem mCurVertices;

src/org/oscim/renderer/layer/LineLayer.java

@@ -28,7 +28,7 @@ import android.graphics.Paint.Cap;
  * @author Hannes Janetzek
  */
 public final class LineLayer extends Layer {
-	private static final float COORD_SCALE = GLRenderer.COORD_MULTIPLIER;
+	private static final float COORD_SCALE = GLRenderer.COORD_SCALE;
 	// scale factor mapping extrusion vector to short values
 	public static final float DIR_SCALE = 2048;
 	// mask for packing last two bits of extrusion vector with texture

src/org/oscim/renderer/layer/LineTexLayer.java

@@ -65,7 +65,7 @@ public final class LineTexLayer extends Layer {
 	// - in our case there is always the polygon fill array at start
 	// - see addLine hack otherwise.
 
-	private static final float COORD_SCALE = GLRenderer.COORD_MULTIPLIER;
+	private static final float COORD_SCALE = GLRenderer.COORD_SCALE;
 	// scale factor mapping extrusion vector to short values
 	public static final float DIR_SCALE = 2048;
 

src/org/oscim/renderer/layer/PolygonLayer.java

@@ -21,7 +21,7 @@ import org.oscim.renderer.GLRenderer;
 import org.oscim.theme.renderinstruction.Area;
 
 public final class PolygonLayer extends Layer {
-	private static final float S = GLRenderer.COORD_MULTIPLIER;
+	private static final float S = GLRenderer.COORD_SCALE;
 
 	public Area area;
 

src/org/oscim/renderer/overlays/BuildingOverlay.java

@@ -438,7 +438,7 @@ public class BuildingOverlay extends RenderOverlay {
 		m.mvp[13] = y * scale;
 		// scale to current tile world coordinates
 		scale = (curPos.scale / oPos.scale) / div;
-		scale /= GLRenderer.COORD_MULTIPLIER;
+		scale /= GLRenderer.COORD_SCALE;
 		m.mvp[0] = scale;
 		m.mvp[5] = scale;
 		m.mvp[10] = scale / 1000f;

src/org/oscim/renderer/overlays/ModelOverlay.java

@@ -238,7 +238,7 @@ public class ModelOverlay extends RenderOverlay {
 		m.mvp[13] = y * scale;
 		// scale to current tile world coordinates
 		scale = (curPos.scale / oPos.scale) / div;
-		scale /= GLRenderer.COORD_MULTIPLIER;
+		scale /= GLRenderer.COORD_SCALE;
 		m.mvp[0] = scale;
 		m.mvp[5] = scale;
 		m.mvp[10] = scale; // 1000f;

src/org/oscim/renderer/overlays/RenderOverlay.java

@@ -103,7 +103,7 @@ public abstract class RenderOverlay {
 		float s = (curPos.scale / oPos.scale) / div;
 
 		GlUtils.setMatrix(m.mvp, x * scale, y * scale,
-				s / GLRenderer.COORD_MULTIPLIER);
+				s / GLRenderer.COORD_SCALE);
 
 		if (project)
 			Matrix.multiplyMM(m.mvp, 0, m.viewproj, 0, m.mvp, 0);

src/org/oscim/renderer/overlays/TestLineOverlay.java

@@ -425,7 +425,7 @@ public class TestLineOverlay extends RenderOverlay {
 		m.mvp[13] = y * scale;
 		// scale to current tile world coordinates
 		scale = (curPos.scale / oPos.scale) / div;
-		scale /= GLRenderer.COORD_MULTIPLIER;
+		scale /= GLRenderer.COORD_SCALE;
 		m.mvp[0] = scale;
 		m.mvp[5] = scale;
 		m.mvp[10] = 1; //scale; // 1000f;

src/org/oscim/renderer/overlays/TextOverlay.java

@@ -15,6 +15,17 @@
 
 package org.oscim.renderer.overlays;
 
+// TODO
+// 1. rewrite :)
+// 1.1 test if label is actually visible
+// 2. compare previous to current state
+// 2.1 test for new labels to be placed
+// 2.2 handle collisions
+// 3 join segments that belong to one feature
+// 4 handle zoom-level changes
+// 5 R-Tree might be handy
+//
+
 import org.oscim.core.MapPosition;
 import org.oscim.core.Tile;
 import org.oscim.renderer.GLRenderer;
@@ -50,10 +61,45 @@ public class TextOverlay extends BasicOverlay {
 
 	private MapPosition mWorkPos;
 
-	// TextLayer that is updating
-	private TextLayer mWorkLayer;
 	// TextLayer that is ready to be added to 'layers'
 	private TextLayer mCurLayer;
+	private TextLayer mNextLayer;
+
+	// local pool, avoids synchronized TextItem.get()/release()
+	private Label mPool;
+	private Label mPrevLabels;
+
+	private final float[] mTmpCoords = new float[8];
+
+	//private HashMap<MapTile, Label> mItemMap;
+	//private Label mNewLabels;
+	//private final HashMap<MapTile, Link> mActiveTiles;
+
+	class Label extends TextItem {
+		TextItem item;
+
+		//Link blocking;
+		//Link blockedBy;
+		// shared list of all label for a tile
+		//Link siblings;
+
+		MapTile tile;
+
+		public byte origin;
+		public int active;
+		public OBB2D bbox;
+	}
+
+	//	class Conflict {
+	//      Conflict next;
+	//		Label other;
+	//	}
+	//
+	//	class ActiveTile {
+	//		MapTile tile;
+	//		int activeLabels;
+	//		Label labels;
+	//	}
 
 	/* package */boolean mRun;
 	/* package */boolean mRerun;
@@ -422,10 +468,10 @@ public class TextOverlay extends BasicOverlay {
 		float x = (float) (oPos.x - curPos.x * div);
 		float y = (float) (oPos.y - curPos.y * div);
 
-		float scale = curPos.scale / div;
-
-		GlUtils.setMatrix(m.mvp, x * scale, y * scale,
-				scale / GLRenderer.COORD_MULTIPLIER);
+		float scale = (curPos.scale / mMapPosition.scale) / div;
+		float s = curPos.scale / div;
+		GlUtils.setMatrix(m.mvp, x * s, y * s,
+				scale / GLRenderer.COORD_SCALE);
 
 		Matrix.multiplyMM(m.mvp, 0, m.view, 0, m.mvp, 0);
 	}