Mapsforge: multiple map files, closes #208

vtm-playground/src/org/oscim/test/MapsforgeMultiTest.java

@@ -0,0 +1,85 @@
+/*
+ * Copyright 2016 devemux86
+ *
+ * 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.test;
+
+import org.oscim.core.MapPosition;
+import org.oscim.core.Tile;
+import org.oscim.gdx.GdxMap;
+import org.oscim.gdx.GdxMapApp;
+import org.oscim.layers.tile.buildings.BuildingLayer;
+import org.oscim.layers.tile.vector.VectorTileLayer;
+import org.oscim.layers.tile.vector.labeling.LabelLayer;
+import org.oscim.theme.VtmThemes;
+import org.oscim.tiling.source.mapfile.MapFileTileSource;
+import org.oscim.tiling.source.mapfile.MultiMapFileTileSource;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+public class MapsforgeMultiTest extends GdxMap {
+
+    private final List<File> mapFiles;
+
+    private MapsforgeMultiTest(List<File> mapFiles) {
+        this.mapFiles = mapFiles;
+    }
+
+    @Override
+    public void createLayers() {
+        MultiMapFileTileSource tileSource = new MultiMapFileTileSource();
+        for (File mapFile : mapFiles) {
+            MapFileTileSource mapFileTileSource = new MapFileTileSource();
+            mapFileTileSource.setMapFile(mapFile.getAbsolutePath());
+            tileSource.add(mapFileTileSource);
+        }
+        tileSource.setPreferredLanguage("en");
+
+        VectorTileLayer l = mMap.setBaseMap(tileSource);
+        mMap.setTheme(VtmThemes.DEFAULT);
+
+        mMap.layers().add(new BuildingLayer(mMap, l));
+        mMap.layers().add(new LabelLayer(mMap, l));
+
+        MapPosition pos = new MapPosition();
+        pos.setByBoundingBox(tileSource.getBoundingBox(), Tile.SIZE * 4, Tile.SIZE * 4);
+        mMap.setMapPosition(pos);
+    }
+
+    private static List<File> getMapFiles(String[] args) {
+        if (args.length == 0) {
+            throw new IllegalArgumentException("missing argument: <mapFile>");
+        }
+
+        List<File> result = new ArrayList<>();
+        for (String arg : args) {
+            File mapFile = new File(arg);
+            if (!mapFile.exists()) {
+                throw new IllegalArgumentException("file does not exist: " + mapFile);
+            } else if (!mapFile.isFile()) {
+                throw new IllegalArgumentException("not a file: " + mapFile);
+            } else if (!mapFile.canRead()) {
+                throw new IllegalArgumentException("cannot read file: " + mapFile);
+            }
+            result.add(mapFile);
+        }
+        return result;
+    }
+
+    public static void main(String[] args) {
+        GdxMapApp.init();
+        GdxMapApp.run(new MapsforgeMultiTest(getMapFiles(args)));
+    }
+}