root/lang/actionscript/swfgmap/trunk/gyuque/gmap/LayerManager.as @ 2485

package gyuque.gmap
{
        public class LayerManager extends Layer
        {
                import flash.display.*;
                import flash.geom.Matrix;
                
                private var mLayers:Array = new Array();
                
                public function LayerManager(c:DisplayObjectContainer)
                {
                        super(c);
                }
                
                public function push(lyr:Layer):void
                {
                        mLayers.push(lyr);
                        addChild(lyr);
                }
                
                protected override function updateContent(refreshAll:Boolean):void
                {
                        var v:GMapViewport = mViewport;
                        
                        var M:Matrix = v.to_screen_transform;
                        M.tx = transform.matrix.tx;
                        M.ty = transform.matrix.ty;
                        
                        if (refreshAll)
                        {
                                M.tx = v.width  * 0.5;
                                M.ty = v.height * 0.5;
                        }
                        else
                        {
                                M.tx += mLastDX;
                                M.ty += mLastDY;
                        }
                        transform.matrix = M;
                }
        }
}