trying a simple TileGenerator

src/org/oscim/layers/tile/TileGeneratorExample.java

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+/*
+ * Copyright 2013 Hannes Janetzek
+ *
+ * This program is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.oscim.layers.tile;
+
+import org.oscim.core.GeometryBuffer;
+import org.oscim.core.Tile;
+import org.oscim.graphics.Color;
+import org.oscim.graphics.Paint.Cap;
+import org.oscim.renderer.layer.LineLayer;
+import org.oscim.theme.renderinstruction.Line;
+
+
+public class TileGeneratorExample implements ITileGenerator {
+	GeometryBuffer mGeom = new GeometryBuffer(128, 16);
+	Line mLineStyle = new Line(Color.BLUE, 2f, Cap.ROUND);
+
+	@Override
+	public boolean executeJob(MapTile tile) {
+		LineLayer ll = tile.layers.getLineLayer(0);
+		ll.line = mLineStyle;
+		ll.width = 2;
+
+		int m = 20;
+		int s = Tile.SIZE - m * 2;
+		GeometryBuffer g = mGeom;
+
+		g.clear();
+		g.startPolygon();
+		g.addPoint(m, m);
+		g.addPoint(m, s);
+		g.addPoint(s, s);
+		g.addPoint(s, m);
+
+		ll.addLine(g);
+
+		return true;
+	}
+
+	@Override
+	public void cleanup() {
+	}
+}