MapGIS Client for JavaScript API

import Layer from './Layer'
import {defaultValue, toJSON} from '../../../util'
import { Zondy } from '../../../base'
import { LayerType } from '../../../base/enum'
import TileInfo from '../support/TileInfo';

/**
 * 瓦片图层基类
 * @class TileLayer
 * @moduleEX LayerModule
 * @extends Layer
 * @param {Object} options 构造参数
 * @param {String} [options.url] 服务基地址
 */
class TileLayer extends Layer {
  constructor(options) {
    super(options)
    options = defaultValue(options, {})
    this.type = LayerType.tile
    /**
     * 服务基地址
     * @member {String} TileLayer.prototype.url
     */
    this.url = defaultValue(options.url, undefined)
    /**
     * 图层信息
     * @readonly
     * @member {TileInfo|undefined} TileLayer.prototype.tileInfo
     */
    this.tileInfo = undefined
  }

  /**
   * @description 转换为json对象
   * @return {TileInfo} json对象
   */
  toJSON() {
    const json = super.toJSON()
    json.url = this.url
    json.tileInfo = toJSON(this.tileInfo, TileInfo)
    return json
  }

  /**
   * @description 克隆方法
   * @return {FeatureLayer} 图层
   */
  clone() {
    return new TileLayer(this.toJSON())
  }
}

Zondy.Layer.TileLayer = TileLayer
export default TileLayer