Application: gvSIG desktop

package org.gvsig.app.project.documents.view.expressionevaluator;

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;

import org.gvsig.app.project.documents.view.ViewDocument;

import org.gvsig.expressionevaluator.Function;

import org.gvsig.expressionevaluator.swing.Element;

import org.gvsig.expressionevaluator.swing.Element.GroupElement;

import org.gvsig.expressionevaluator.swing.Element.SimpleElement;

import org.gvsig.expressionevaluator.swing.ExpressionBuilderConfig;

import org.gvsig.expressionevaluator.swing.spi.AbstractElement;

import org.gvsig.fmap.dal.swing.DALSwingLocator;

import org.gvsig.fmap.dal.swing.DataSwingManager;

import org.gvsig.fmap.dal.swing.expressionevaluator.FeatureStoreElement;

import org.gvsig.fmap.mapcontext.layers.FLayer;

import org.gvsig.fmap.mapcontext.layers.operations.SingleLayer;

import org.gvsig.fmap.mapcontext.layers.vectorial.FLyrVect;

/**

 *

 * @author jjdelcerro

 */

public class ViewLayersElement

        extends AbstractElement

        implements GroupElement, SimpleElement {

    private class LayerEntryElement

            extends AbstractElement

            implements ConstantElement {

        private final FLayer layer;

        public LayerEntryElement(ViewDocument view, FLayer layer) {

            super(layer.getName(), layer.getName(), "expressionbuilder-element-constant");

            this.layer = layer;

        }

        @Override

        public Object getValue() {

            return layer.getName();

        }

    }

    private final List<Element> children;

    public ViewLayersElement(ViewDocument view) {

        super(view.getName());

        DataSwingManager dalSwingManager = DALSwingLocator.getSwingManager();

        this.children = new ArrayList<>();

        Iterator<FLayer> it = view.deepiterator();

        while( it.hasNext() ) {

            FLayer layer = it.next();

            if( layer instanceof SingleLayer ) {

                if( layer instanceof FLyrVect ) {

                    FeatureStoreElement e = dalSwingManager.createFeatureStoreElement();

                    e.setFeatureStore(((FLyrVect) layer).getFeatureStore());

                    e.setName(layer.getName());

                    this.children.add(e);

                } else {

                    ConstantElement e = new LayerEntryElement(view, layer);

                    this.children.add(e);

                }

            }

        }

    }

    @Override

    public Element setConfig(ExpressionBuilderConfig config) {

        super.setConfig(config); 

        for (Element child : this.children) {

            child.setConfig(config);

        }

        return this;

    }

    @Override

    public Element get(int index) {

        return this.children.get(index);

    }

    @Override

    public int size() {

        return this.children.size();

    }

    @Override

    public Iterator<Element> iterator() {

        return this.children.iterator();

    }

    @Override

    public void addElement(Element element) {

        this.children.add(element);

    }

    @Override

    public void addElement(Function function) {

        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.

    }

    @Override

    public List<Element> getElements() {

        return this.children;

    }

    @Override

    public boolean hasSubgroups() {

        return true;

    }

    @Override

    public boolean hasMoreElements() {

        return false;

    }

}