638 lines
15 KiB
Java
638 lines
15 KiB
Java
/*
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* Copyright 2013 Hannes Janetzek
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*
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* This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
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*
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* This program is free software: you can redistribute it and/or modify it under the
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* terms of the GNU Lesser General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.oscim.gdx;
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import org.oscim.backend.AssetAdapter;
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import org.oscim.core.Tile;
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import org.oscim.layers.GenericLayer;
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import org.oscim.layers.TileGridLayer;
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import org.oscim.layers.tile.vector.BuildingLayer;
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import org.oscim.layers.tile.vector.VectorTileLayer;
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import org.oscim.layers.tile.vector.labeling.LabelLayer;
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import org.oscim.map.Layers;
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import org.oscim.map.Map;
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import org.oscim.map.ViewController;
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import org.oscim.renderer.MapRenderer;
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import org.oscim.theme.InternalRenderTheme;
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import org.oscim.tiling.source.TileSource;
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import com.badlogic.gdx.Application;
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import com.badlogic.gdx.ApplicationListener;
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import com.badlogic.gdx.Gdx;
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import com.badlogic.gdx.Input;
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import com.badlogic.gdx.Input.Buttons;
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import com.badlogic.gdx.InputMultiplexer;
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import com.badlogic.gdx.InputProcessor;
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import com.badlogic.gdx.input.GestureDetector;
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import com.badlogic.gdx.input.GestureDetector.GestureListener;
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import com.badlogic.gdx.math.Vector2;
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import com.badlogic.gdx.utils.Timer;
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import com.badlogic.gdx.utils.Timer.Task;
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public abstract class GdxMap implements ApplicationListener {
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protected final Map mMap;
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private final MapRenderer mMapRenderer;
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boolean mRenderRequest;
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public GdxMap() {
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AssetAdapter.g = new GdxAssetAdapter();
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mMap = new Map() {
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@Override
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public int getWidth() {
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return mWidth;
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}
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@Override
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public int getHeight() {
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return mHeight;
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}
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@Override
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public void updateMap(boolean forceRender) {
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if (!mWaitRedraw) {
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mWaitRedraw = true;
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Gdx.app.postRunnable(mRedrawRequest);
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}
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}
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@Override
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public void render() {
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mRenderRequest = true;
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if (mClearMap)
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updateMap(false);
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else
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Gdx.graphics.requestRendering();
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}
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@Override
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public boolean post(Runnable runnable) {
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Gdx.app.postRunnable(runnable);
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return true;
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}
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@Override
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public boolean postDelayed(final Runnable action, long delay) {
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Timer.schedule(new Task() {
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@Override
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public void run() {
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action.run();
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}
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}, delay / 1000f);
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return true;
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}
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/**
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* Update all Layers on Main thread.
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*
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* @param forceRedraw
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* also render frame FIXME (does nothing atm)
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*/
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private void redrawMapInternal(boolean forceRedraw) {
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updateLayers();
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mRenderRequest = true;
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Gdx.graphics.requestRendering();
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}
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/* private */boolean mWaitRedraw;
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private final Runnable mRedrawRequest = new Runnable() {
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@Override
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public void run() {
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mWaitRedraw = false;
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redrawMapInternal(false);
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}
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};
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};
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mMapRenderer = new MapRenderer(mMap);
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}
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protected void initDefaultLayers(TileSource tileSource, boolean tileGrid, boolean labels,
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boolean buildings) {
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Layers layers = mMap.layers();
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if (tileSource != null) {
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mMapLayer = mMap.setBaseMap(tileSource);
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mMap.setTheme(InternalRenderTheme.DEFAULT);
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if (buildings)
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layers.add(new BuildingLayer(mMap, mMapLayer));
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if (labels)
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layers.add(new LabelLayer(mMap, mMapLayer));
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}
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if (tileGrid)
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layers.add(new TileGridLayer(mMap));
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}
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// Stage ui;
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// Label fps;
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// BitmapFont font;
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VectorTileLayer mMapLayer;
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GenericLayer mGridLayer;
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int mHeight, mWidth;
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@Override
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public void create() {
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Gdx.graphics.setContinuousRendering(false);
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Gdx.app.setLogLevel(Application.LOG_DEBUG);
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int w = Gdx.graphics.getWidth();
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int h = Gdx.graphics.getHeight();
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mWidth = w;
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mHeight = h;
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mMap.viewport().setScreenSize(w, h);
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//MapPosition p = new MapPosition();
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//p.setZoomLevel(14);
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//p.setPosition(53.08, 8.83);
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//p.setPosition(0.0, 0.0);
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//mMap.setMapPosition(p);
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mMapRenderer.onSurfaceCreated();
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mMapRenderer.onSurfaceChanged(w, h);
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InputMultiplexer mux = new InputMultiplexer();
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MapController controller = new MapController();
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GestureDetector gestureDetector = new GestureDetector(20, 0.5f, 2, 0.05f, controller);
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mux.addProcessor(new TouchHandler());
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mux.addProcessor(gestureDetector);
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Gdx.input.setInputProcessor(mux);
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// ui = new Stage(w, h, false);
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// font = new BitmapFont(false);
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// fps = new Label("fps: 0", new Label.LabelStyle(font, Color.WHITE));
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// fps.setPosition(10, 30);
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// fps.setColor(0, 1, 0, 1);
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// ui.addActor(fps);
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createLayers();
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}
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protected abstract void createLayers();
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@Override
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public void dispose() {
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}
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@Override
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public void render() {
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// GLState.enableVertexArrays(-1, -1);
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// GLState.blend(false);
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// GLState.test(false, false);
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if (mRenderRequest) {
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mRenderRequest = false;
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mMapRenderer.onDrawFrame();
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}
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// Gdx.gl20.glBindBuffer(GL20.GL_ARRAY_BUFFER, 0);
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// Gdx.gl20.glBindBuffer(GL20.GL_ELEMENT_ARRAY_BUFFER, 0);
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// fps.setText("fps: " + Gdx.graphics.getFramesPerSecond());
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// ui.draw();
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}
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@Override
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public void resize(int w, int h) {
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mWidth = w;
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mHeight = h;
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mMap.viewport().setScreenSize(w, h);
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mMapRenderer.onSurfaceChanged(w, h);
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mMap.render();
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}
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@Override
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public void pause() {
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}
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@Override
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public void resume() {
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}
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protected boolean onKeyDown(int keycode) {
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return false;
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}
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class TouchHandler implements InputProcessor {
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private ViewController mViewport;
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public TouchHandler() {
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mViewport = mMap.viewport();
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}
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private boolean mActiveScale;
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//private boolean mActiveTilt;
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private boolean mActiveRotate;
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private int mPosX, mPosY;
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@Override
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public boolean keyDown(int keycode) {
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if (onKeyDown(keycode))
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return true;
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switch (keycode) {
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case Input.Keys.UP:
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mViewport.moveMap(0, -50);
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mMap.updateMap(true);
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break;
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case Input.Keys.DOWN:
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mViewport.moveMap(0, 50);
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mMap.updateMap(true);
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break;
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case Input.Keys.LEFT:
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mViewport.moveMap(-50, 0);
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mMap.updateMap(true);
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break;
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case Input.Keys.RIGHT:
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mViewport.moveMap(50, 0);
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mMap.updateMap(true);
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break;
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case Input.Keys.M:
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mViewport.scaleMap(1.05f, 0, 0);
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mMap.updateMap(true);
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break;
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case Input.Keys.N:
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mViewport.scaleMap(0.95f, 0, 0);
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mMap.updateMap(true);
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break;
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case Input.Keys.NUM_1:
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mMap.animator().animateZoom(500, 0.5, 0, 0);
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break;
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case Input.Keys.NUM_2:
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mMap.animator().animateZoom(500, 2, 0, 0);
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break;
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case Input.Keys.D:
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mMap.setTheme(InternalRenderTheme.DEFAULT);
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mMap.updateMap(false);
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break;
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case Input.Keys.T:
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mMap.setTheme(InternalRenderTheme.TRONRENDER);
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mMap.updateMap(false);
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break;
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case Input.Keys.R:
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mMap.setTheme(InternalRenderTheme.OSMARENDER);
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mMap.updateMap(false);
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break;
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case Input.Keys.G:
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if (mGridLayer == null) {
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mGridLayer = new TileGridLayer(mMap);
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mGridLayer.setEnabled(true);
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mMap.layers().add(mGridLayer);
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} else {
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if (mGridLayer.isEnabled()) {
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mGridLayer.setEnabled(false);
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mMap.layers().remove(mGridLayer);
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} else {
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mGridLayer.setEnabled(true);
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mMap.layers().add(mGridLayer);
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}
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}
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mMap.render();
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break;
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}
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return false;
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}
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@Override
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public boolean keyUp(int keycode) {
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return false;
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}
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@Override
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public boolean keyTyped(char character) {
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return false;
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}
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@Override
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public boolean touchDown(int screenX, int screenY, int pointer, int button) {
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if (button == Buttons.MIDDLE) {
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mActiveScale = true;
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mPosY = screenY;
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} else if (button == Buttons.RIGHT) {
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mActiveRotate = true;
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mPosX = screenX;
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mPosY = screenY;
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return true;
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}
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return false;
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}
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@Override
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public boolean touchUp(int screenX, int screenY, int pointer, int button) {
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mActiveScale = false;
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mActiveRotate = false;
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return false;
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}
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@Override
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public boolean touchDragged(int screenX, int screenY, int pointer) {
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boolean changed = false;
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if (!(mActiveScale || mActiveRotate))
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return false;
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if (mActiveScale) {
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// changed = mMapPosition.tilt((screenY - mStartY) / 5f);
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changed = mViewport.scaleMap(1 - (screenY - mPosY) / 100f, 0, 0);
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mPosY = screenY;
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}
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if (mActiveRotate) {
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mViewport.rotateMap((screenX - mPosX) / 500f, 0, 0);
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mPosX = screenX;
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mViewport.tiltMap((screenY - mPosY) / 10f);
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mPosY = screenY;
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changed = true;
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}
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if (changed) {
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mMap.updateMap(true);
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}
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return true;
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}
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@Override
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public boolean mouseMoved(int screenX, int screenY) {
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mPosX = screenX;
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mPosY = screenY;
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return false;
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}
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@Override
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public boolean scrolled(int amount) {
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if (amount > 0) {
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mMap.animator().animateZoom(250, 0.75f, 0, 0);
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} else {
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float fx = mPosX - mMap.getWidth() / 2;
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float fy = mPosY - mMap.getHeight() / 2;
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mMap.animator().animateZoom(250, 1.333f, fx, fy);
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}
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mMap.updateMap(false);
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return true;
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}
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}
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class MapController implements GestureListener {
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private boolean mayFling = true;
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private boolean mPinch;
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private boolean mBeginScale;
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private float mSumScale;
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private float mSumRotate;
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private boolean mBeginRotate;
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private boolean mBeginTilt;
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private float mPrevX;
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private float mPrevY;
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private float mPrevX2;
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private float mPrevY2;
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private float mFocusX;
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private float mFocusY;
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private double mAngle;
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protected double mPrevPinchWidth = -1;
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protected static final int JUMP_THRESHOLD = 100;
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protected static final double PINCH_ZOOM_THRESHOLD = 5;
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protected static final double PINCH_ROTATE_THRESHOLD = 0.02;
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protected static final float PINCH_TILT_THRESHOLD = 1f;
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private ViewController mViewport;
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public MapController() {
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mViewport = mMap.viewport();
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}
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@Override
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public boolean touchDown(float x, float y, int pointer, int button) {
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mayFling = true;
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mPinch = false;
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return false;
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}
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@Override
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public boolean tap(float x, float y, int count, int button) {
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return false;
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}
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@Override
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public boolean longPress(float x, float y) {
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return false;
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}
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@Override
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public boolean fling(final float velocityX, final float velocityY,
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int button) {
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//log.debug("fling " + button + " " + velocityX + "/" + velocityY);
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if (mayFling && button == Buttons.LEFT) {
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int m = Tile.SIZE * 4;
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mMap.animator().animateFling((int) velocityX, (int) velocityY, -m, m, -m, m);
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return true;
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}
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return false;
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}
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@Override
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public boolean pan(float x, float y, float deltaX, float deltaY) {
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if (mPinch)
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return true;
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mViewport.moveMap(deltaX, deltaY);
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mMap.updateMap(true);
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return false;
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}
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@Override
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public boolean zoom(float initialDistance, float distance) {
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return false;
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}
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@Override
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public boolean pinch(Vector2 initialPointer1, Vector2 initialPointer2,
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Vector2 pointer1, Vector2 pointer2) {
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mayFling = false;
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if (!mPinch) {
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mPrevX = pointer1.x;
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mPrevY = pointer1.y;
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mPrevX2 = pointer2.x;
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mPrevY2 = pointer2.y;
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double dx = mPrevX - mPrevX2;
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double dy = mPrevY - mPrevY2;
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mAngle = Math.atan2(dy, dx);
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mPrevPinchWidth = Math.sqrt(dx * dx + dy * dy);
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mPinch = true;
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mBeginTilt = false;
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mBeginRotate = false;
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mBeginScale = false;
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return true;
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}
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float x1 = pointer1.x;
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float y1 = pointer1.y;
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//float mx = x1 - mPrevX;
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float my = y1 - mPrevY;
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float x2 = pointer2.x;
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float y2 = pointer2.y;
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float dx = (x1 - x2);
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float dy = (y1 - y2);
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float slope = 0;
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if (dx != 0)
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slope = dy / dx;
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double pinchWidth = Math.sqrt(dx * dx + dy * dy);
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final double deltaPinchWidth = pinchWidth - mPrevPinchWidth;
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double rad = Math.atan2(dy, dx);
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double r = rad - mAngle;
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boolean startScale = (Math.abs(deltaPinchWidth) > PINCH_ZOOM_THRESHOLD);
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boolean changed = false;
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if (!mBeginTilt && (mBeginScale || startScale)) {
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mBeginScale = true;
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float scale = (float) (pinchWidth / mPrevPinchWidth);
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// decrease change of scale by the change of rotation
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// * 20 is just arbitrary
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if (mBeginRotate)
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scale = 1 + ((scale - 1) * Math.max((1 - (float) Math.abs(r) * 20), 0));
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mSumScale *= scale;
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if ((mSumScale < 0.99 || mSumScale > 1.01)
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&& mSumRotate < Math.abs(0.02))
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mBeginRotate = false;
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float fx = (x2 + x1) / 2 - mWidth / 2;
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float fy = (y2 + y1) / 2 - mHeight / 2;
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// log.debug("zoom " + deltaPinchWidth + " " + scale + " " +
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// mSumScale);
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changed = mViewport.scaleMap(scale, fx, fy);
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}
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if (!mBeginRotate && Math.abs(slope) < 1) {
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float my2 = y2 - mPrevY2;
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float threshold = PINCH_TILT_THRESHOLD;
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// log.debug(r + " " + slope + " m1:" + my + " m2:" + my2);
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if ((my > threshold && my2 > threshold)
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|| (my < -threshold && my2 < -threshold)) {
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mBeginTilt = true;
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changed = mViewport.tiltMap(my / 5);
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}
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|
}
|
|
|
|
if (!mBeginTilt
|
|
&& (mBeginRotate || (Math.abs(slope) > 1 && Math.abs(r) > PINCH_ROTATE_THRESHOLD))) {
|
|
// log.debug("rotate: " + mBeginRotate + " " +
|
|
// Math.toDegrees(rad));
|
|
if (!mBeginRotate) {
|
|
mAngle = rad;
|
|
|
|
mSumScale = 1;
|
|
mSumRotate = 0;
|
|
|
|
mBeginRotate = true;
|
|
|
|
mFocusX = (x1 + x2) / 2 - (mWidth / 2);
|
|
mFocusY = (y1 + y2) / 2 - (mHeight / 2);
|
|
} else {
|
|
double da = rad - mAngle;
|
|
mSumRotate += da;
|
|
|
|
if (Math.abs(da) > 0.001) {
|
|
double rsin = Math.sin(r);
|
|
double rcos = Math.cos(r);
|
|
float x = (float) (mFocusX * rcos + mFocusY * -rsin - mFocusX);
|
|
float y = (float) (mFocusX * rsin + mFocusY * rcos - mFocusY);
|
|
|
|
mViewport.rotateMap(da, x, y);
|
|
changed = true;
|
|
}
|
|
}
|
|
mAngle = rad;
|
|
}
|
|
|
|
if (changed) {
|
|
mMap.updateMap(true);
|
|
mPrevPinchWidth = pinchWidth;
|
|
mPrevY2 = y2;
|
|
|
|
}
|
|
|
|
mPrevX = x1;
|
|
mPrevY = y1;
|
|
mPrevX2 = x2;
|
|
|
|
return true;
|
|
}
|
|
|
|
@Override
|
|
public boolean panStop(float x, float y, int pointer, int button) {
|
|
return false;
|
|
}
|
|
|
|
}
|
|
|
|
}
|