/*----------------    FILE HEADER ---------------------------------------
 This file is part of Geoide.
 Copyright (C) 2005-2006 by:
 IDgis B.V.
 http://www.idgis.nl

 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later version.

 This library is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 Lesser General Public License for more details.

 You should have received a copy of the GNU Lesser General Public
 License along with this library; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA

 Contact:

 Herman Assink
 IDgis bv
 P.O. Box 15
 7450 AA Holten
 The Netherlands
 E-Mail: herman.assink@idgis.nl

 * @version 1.4.0
 * @author IDgis team
 * 
 ------------------------------------------------------------------------*/
import nl.idgis.giclient.actions.Action;
import nl.idgis.giclient.Ruler;
import nl.idgis.giclient.geoma.Point;
import nl.idgis.giclient.geoma.GMLFactory;
import nl.idgis.giclient.io.XMLServer;
import nl.idgis.giclient.webserviceconnector.giconnector.GIConnector;
import nl.idgis.giclient.io.XMLResponseListener;
import nl.idgis.giclient.io.XMLResponse;
import nl.idgis.giclient.util.Strings;


class nl.idgis.giclient.actions.ZoomToXYAction extends Action implements XMLResponseListener {
	private var actionObject : Object;

	public function ZoomToXYAction(ruler:Ruler, actionObject:Object){
    this.ruler = ruler;
    this.actionObject = actionObject;
    
  }
  
  public function doAction(){
  	var x:Number = actionObject.getX();
  	var y:Number = actionObject.getY();
  	checkCoordinates();
   
  }

    private function checkCoordinates():Void{
	   	var error:Boolean = false;
	    if(actionObject.getCrs() == null){
	      error = true;
	      actionObject.state(//"Kies eerst een coordinaat systeem !");
	      	 Strings.getFile("Geoide").getString("ChooseCoordinateSystem"));
	    } else {
	      if(actionObject.getX() ==""){
	        error = true;
	        actionObject.state(//"Voer de X coordinaat in !");
	        Strings.getFile("Geoide").getString("EnterX"));
	      } else {
	          
	        if(actionObject.getY()==""){
	          error = true;
	          actionObject.state(//"Voer de Y coordinaat in !");
	          Strings.getFile("Geoide").getString("EnterY"));
	        }
	      }
	    }   
	    if(!error){ 
    	    var xInput:Number = Number(actionObject.getX());
			var yInput:Number = Number(actionObject.getY());
			var crs:String = actionObject.getCrs();
			var mapSrs:String = ruler.getGIS().getActiveMap().getSRS();
			var mapPoint:Point = new Point(crs,xInput,yInput);
    	    if(crs!=mapSrs){
				transformPoint(mapPoint,crs, mapSrs);			
			} else { 
				ruler.getGIS().zoomToXY(xInput,yInput);
			}
	    } 
	}
	

	
	private function transformPoint(point:Point,fromSrs:String,toSrs:String ):Void{
		//var mapViewer:MapViewer = _root.mapViewer;
    	var geometryNode:XMLNode = GMLFactory.createGeometryNode("transformPoint", point,fromSrs);
    	var geometryXML:XML = new XML();
    	geometryXML.appendChild(geometryNode.firstChild);
    	var serverRequest:String = "request=Transform&toSRS=" + toSrs;
      	//var xmlServer:XMLServer = mapViewer.ruler.getGIClientConfig().getXMLServer();
     	var xmlServer:XMLServer = 
     		new XMLServer(GIConnector(ruler.getGIS().getTransformConnector()).getURL());
     	xmlServer.postAndLoad(geometryXML, this, serverRequest, null);
    }
    
    function onLoadXMLResponse(xmlResponse:XMLResponse):Void {
    	//var mapViewer:MapViewer = _root.mapViewer;
    	var point:Point = Point(GMLFactory.parseGML(xmlResponse.firstChild));
   		var xInput:Number = point.getX();
		var yInput:Number = point.getY();
		ruler.getGIS().zoomToXY(xInput,yInput);
   }
	
	
}