Render theme styles sample #93

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

@@ -0,0 +1,123 @@
+/*
+ * 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 com.badlogic.gdx.Input;
+
+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.StreamRenderTheme;
+import org.oscim.theme.XmlRenderThemeMenuCallback;
+import org.oscim.theme.XmlRenderThemeStyleLayer;
+import org.oscim.theme.XmlRenderThemeStyleMenu;
+import org.oscim.tiling.source.mapfile.MapFileTileSource;
+import org.oscim.tiling.source.mapfile.MapInfo;
+
+import java.io.File;
+import java.util.Set;
+
+public class MapsforgeStyleTest extends GdxMap {
+
+    private static File mapFile;
+    private String style;
+
+    @Override
+    public void createLayers() {
+        MapFileTileSource tileSource = new MapFileTileSource();
+        tileSource.setMapFile(mapFile.getAbsolutePath());
+        tileSource.setPreferredLanguage("en");
+
+        VectorTileLayer l = mMap.setBaseMap(tileSource);
+        loadTheme();
+
+        mMap.layers().add(new BuildingLayer(mMap, l));
+        mMap.layers().add(new LabelLayer(mMap, l));
+
+        MapInfo info = tileSource.getMapInfo();
+        MapPosition pos = new MapPosition();
+        pos.setByBoundingBox(info.boundingBox, Tile.SIZE * 4, Tile.SIZE * 4);
+        mMap.setMapPosition(pos);
+    }
+
+    private static File getMapFile(String[] args) {
+        if (args.length == 0) {
+            throw new IllegalArgumentException("missing argument: <mapFile>");
+        }
+
+        File file = new File(args[0]);
+        if (!file.exists()) {
+            throw new IllegalArgumentException("file does not exist: " + file);
+        } else if (!file.isFile()) {
+            throw new IllegalArgumentException("not a file: " + file);
+        } else if (!file.canRead()) {
+            throw new IllegalArgumentException("cannot read file: " + file);
+        }
+        return file;
+    }
+
+    private void loadTheme() {
+        mMap.setTheme(new StreamRenderTheme("", getClass().getResourceAsStream("/assets/styles/style.xml"), new XmlRenderThemeMenuCallback() {
+            @Override
+            public Set<String> getCategories(XmlRenderThemeStyleMenu renderThemeStyleMenu) {
+                if (style == null)
+                    style = renderThemeStyleMenu.getDefaultValue();
+                XmlRenderThemeStyleLayer renderThemeStyleLayer = renderThemeStyleMenu.getLayer(style);
+                if (renderThemeStyleLayer == null) {
+                    System.err.println("Invalid style " + style);
+                    return null;
+                }
+                Set<String> categories = renderThemeStyleLayer.getCategories();
+                // Add the categories from overlays that are enabled
+                for (XmlRenderThemeStyleLayer overlay : renderThemeStyleLayer.getOverlays()) {
+                    if (overlay.isEnabled())
+                        categories.addAll(overlay.getCategories());
+                }
+                return categories;
+            }
+        }));
+    }
+
+    @Override
+    protected boolean onKeyDown(int keycode) {
+        switch (keycode) {
+            case Input.Keys.NUM_1:
+                System.out.println("Sea with land");
+                style = "1";
+                loadTheme();
+                mMap.clearMap();
+                return true;
+            case Input.Keys.NUM_2:
+                System.out.println("Sea without land");
+                style = "2";
+                loadTheme();
+                mMap.clearMap();
+                return true;
+        }
+
+        return super.onKeyDown(keycode);
+    }
+
+    public static void main(String[] args) {
+        mapFile = getMapFile(args);
+
+        GdxMapApp.init();
+        GdxMapApp.run(new MapsforgeStyleTest());
+    }
+}