import nl.idgis.giclient.modes.MapViewerSelectByGeometry;
import nl.idgis.giclient.gui.mapviewer.MapViewer;
import nl.idgis.giclient.geoma.Point;
import nl.idgis.giclient.gis.SelectableLayer;
import nl.idgis.giclient.gis.Feature;
import nl.idgis.giclient.gui.mapviewer.MapFeature;
import nl.idgis.giclient.util.SynchListener;
import nl.idgis.giclient.gis.GIS;
import nl.idgis.giclient.geoma.LinearRing;
import nl.idgis.giclient.geoma.Circle;
import nl.idgis.giclient.geoma.Geometry;
import nl.idgis.giclient.gui.mapviewer.MapGeometry;
import nl.idgis.giclient.config.Colors;

/**
 * @author velsll
 */
class nl.idgis.giclient.modes.MapViewerSelectByFeature extends MapViewerSelectByGeometry implements SynchListener{
 
	private var selectionFeature:Feature;


	function performPress(mapViewer:MapViewer, pressX:Number, pressY:Number, point:Point):Void {
        this.mapViewer = mapViewer;  
        if(newGeometry){
    		selectionGeometry = null;
    		GIS(mapViewer.ruler.getGIS()).clearSelectedFeatures();
			if (selectionMapGeometry != null) {
	        	removeMapGeometry(mapViewer);
			}
    		newGeometry = false;
    	}
    	var mapFeatures:Array = mapViewer.getMapFeaturesUnderMousePointer(MapViewer.FRONTMOST_LAYER, false, false);
		var layer:SelectableLayer = SelectableLayer(mapFeatures[0]._parent._parent.getLayer());
        var featureID:String = mapViewer.getFeatureID(mapFeatures[0]._name);
        selectionFeature= layer.getFeature(featureID);
        selectionFeature.requestProperties(this);
    }

     function onSynch(target:Object, action:String):Void {
    	if(selectionFeature.getGeometry()instanceof Point){
				createGeometry(Point(selectionFeature.getGeometry()));
			} else {
				selectionGeometry = selectionFeature.getGeometry();
			}
			selectionMapGeometry = MapGeometry(mapViewer.getGeometryLayer().addMapGeometry(selectionGeometry, MapGeometry.SELECTION, Colors.selectionGeometryColor, ""));
        	selectionMapGeometry.onChangeGeometry();
			setSelection();
        	newGeometry = true;
			showBufferFrame(mapViewer);
    }
    	 
    private function createGeometry(point:Point):Void {
    	var pwidth:Number = mapViewer.pixel2Point(0,0).getX() - mapViewer.pixel2Point(1,1).getX();;
    	var points:Array = new Array(point, point);
        var linearRing:LinearRing = new LinearRing(point.getSRS(), points);
        selectionGeometry = new Circle(point.getSRS(), linearRing);
    	selectionGeometry.setPointXY(point.getX() + pwidth, point.getY());

    }
}