content: /*
   * Copyright (C) 2019  Ziwei Huang
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package cn.forward.tiledmapview.layer.tianditu;
  
  import android.graphics.Bitmap;
  import android.graphics.BitmapFactory;
  
  import cn.forward.tiledmapview.config.LngLatProjectionTileConfig;
  import cn.forward.tiledmapview.config.WebMercatorTileConfig;
  import cn.forward.tiledmapview.core.IProjection;
  import cn.forward.tiledmapview.core.ITileImageCache;
  import cn.forward.tiledmapview.core.ITiledMapView;
  import cn.forward.tiledmapview.layer.PicassoTileImageLoader;
  import cn.forward.tiledmapview.layer.TileImageCache;
  import cn.forward.tiledmapview.layer.TileLayer;
  import cn.forward.tiledmapview.projection.LngLatProjection;
  import cn.forward.tiledmapview.projection.WebMercatorProjection;
  
  /**
   * @author ziwei huang
   */
  public class TiandituTileLayer extends TileLayer {
  
      public TiandituTileLayer(ITiledMapView mapView, TiandituOnlineTileImageSource.ImgType imgType,
                               TiandituOnlineTileImageSource.ProjectionType projectionType,
                               String key) {
          this(mapView, imgType, projectionType, key, new PicassoTileImageLoader());
      }
  
      /**
       * @param mapView
       * @param imgType
       * @param projectionType
       * @param key            Using Tianditu API, you need to apply for a key. 使用天地图API，需要申请秘钥
       * @see <a href="https://console.tianditu.gov.cn/api/key">Tianditu API key</a>
       */
      public TiandituTileLayer(ITiledMapView mapView, TiandituOnlineTileImageSource.ImgType imgType,
                               TiandituOnlineTileImageSource.ProjectionType projectionType,
                               String key,
                               TileImageCache.ITileImageLoader tileImageLoader) {
          Bitmap placeHolder = BitmapFactory.decodeResource(mapView.getContext().getResources(), cn.forward.tiledmapview.R.drawable.grid);
          ITileImageCache imageCache = new TileImageCache(mapView, new TiandituOnlineTileImageSource(imgType, projectionType, key), tileImageLoader, placeHolder);
          initialize(mapView, imageCache);
  
          if (projectionType == TiandituOnlineTileImageSource.ProjectionType.LNG_LAT) {
              mapView.setTileConfig(new LngLatProjectionTileConfig(1, 18));
              IProjection projection = new LngLatProjection();
              mapView.setProjection(projection);
          } else {
              mapView.setTileConfig(new WebMercatorTileConfig(1, 18));
              IProjection projection = new WebMercatorProjection();
              mapView.setProjection(projection);
          }
      }
  }
  