Application: gvSIG desktop

package com.iver.cit.gvsig.project.documents.table.operators;

import java.util.ArrayList;

import org.apache.bsf.BSFException;

import org.apache.bsf.BSFManager;

import org.gvsig.fmap.dal.exception.DataException;

import org.gvsig.fmap.dal.feature.Feature;

import org.gvsig.fmap.dal.feature.FeatureStore;

import com.iver.andami.PluginServices;

import com.iver.andami.messages.NotificationManager;

import com.iver.cit.gvsig.ExpressionFieldExtension;

import com.iver.cit.gvsig.project.documents.table.GraphicOperator;

import com.iver.cit.gvsig.project.documents.table.IOperator;

/**

 * @author Vicente Caballero Navarro

 */

public class PointY extends GraphicOperator{

        public String addText(String s) {

                return s.concat(toString()+"()");

        }

        public double process(Feature feature) {

//                ReadableVectorial adapter = getLayer().getSource();

                org.gvsig.fmap.geom.Geometry geom=null;

//                try {

                        geom = feature.getDefaultGeometry();//adapter.getShape(index.get());

//                } catch (ExpansionFileReadException e) {

//                        throw new DriverIOException(e);

//                } catch (ReadDriverException e) {

//                        throw new DriverIOException(e);

//                }

                ArrayList parts=getXY(geom);

                Double[][] xsys=(Double[][])parts.get(0);//getXY(geom);

                return xsys[1][0].doubleValue();

        }

        public void eval(BSFManager interpreter) throws BSFException {

                interpreter.declareBean("pointY",this,PointY.class);

//                interpreter.eval(ExpressionFieldExtension.BEANSHELL,null,-1,-1,"double y(){return pointY.process(indexRow);};");

                interpreter.exec(ExpressionFieldExtension.JYTHON,null,-1,-1,"def y():\n" +

                                "  return pointY.process(featureContainer.getFeature())");

        }

        public String toString() {

                return "y";

        }

        public boolean isEnable() {

                if (getLayer()==null)

                        return false;

                int geomType=org.gvsig.fmap.geom.Geometry.TYPES.POINT;

                try {

                        FeatureStore store = getLayer().getFeatureStore();

                        geomType = store.getDefaultFeatureType().getAttributeDescriptor(store.getDefaultFeatureType().getDefaultGeometryAttributeIndex()).getGeometryType();

                } catch (DataException e) {

                        NotificationManager.addError(e);

                }

                return (getType()==IOperator.NUMBER && geomType==org.gvsig.fmap.geom.Geometry.TYPES.POINT);

        }

        public String getTooltip(){

                return PluginServices.getText(this,"operator")+":  "+addText("")+"\n"+getDescription();

        }

        public String getDescription() {

        return PluginServices.getText(this, "returns") + ": " +

        PluginServices.getText(this, "numeric_value") + "\n" +

        PluginServices.getText(this, "description") + ": " +

        "Returns the Y coordenate of point geometry of this row.";

    }

}