function Dragger(){
this._handleElms = [];
this._doOnMouseDown = bind(this._doOnMouseDown, this);
this._doOnMouseMove = bind(this._doOnMouseMove, this);
this._doOnRelease = bind(this._doOnRelease, this);
this._doOnTimeout = bind(this._doOnTimeout, this);
this.onDragStart = delegate();
this.onDragMove = delegate();
this.onDragEnd = delegate();
}
function TileLayer(){
this._cache = new LinkedMap(1024);
this._loader = new ImageLoader(5);
this._preloader = new ImageLoader(1);
this.onDropTile = delegate();
var self = this;
this._cache.onDrop.addCallback(function (tile){
self._doOnDropTile(tile);
});
this._doOnMapChanges = bind(this._doOnMapChanges, this);
}
function TileLayer(){
this._cache = new LinkedMap(1024);
this._loader = new ImageLoader(5);
this._preloader = new ImageLoader(1);
this._rev = 1;
this._loadUpLevels = 0;
this._findUpLevels = true;
this._onlyFindDrawns = true;
this._findDownLevels = true;
this._preloadUpLevel = 2;
this._blend = true;
this._blendTime = 1000;
this._alwaysBlend = false;
this.onDropTile = delegate();
var self = this;
this._cache.onDrop.addCallback(function (tile){
self._doOnDropTile(tile);
});
this._doOnMapChanges = bind(this._doOnMapChanges, this);
}