Application: gvSIG desktop

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

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;

import java.util.Objects;

import org.apache.commons.lang3.tuple.Pair;

import org.gvsig.expressionevaluator.Function;

import org.gvsig.expressionevaluator.swing.Element;

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

import org.gvsig.expressionevaluator.swing.ExpressionEvaluatorSwingLocator;

import org.gvsig.expressionevaluator.swing.ExpressionEvaluatorSwingManager;

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

import org.gvsig.fmap.geom.primitive.Point;

import org.gvsig.temporarystorage.TemporaryStorageGroup;

import org.gvsig.temporarystorage.TemporaryStorageLocator;

import org.gvsig.temporarystorage.TemporaryStorageManager;

import org.gvsig.tools.ToolsLocator;

/**

 *

 * @author jjdelcerro

 */

public class SavedPointsElement

        extends AbstractElement

        implements GroupElement {

    private class PointEntryElement

            extends AbstractElement

            implements ConstantElement {

        private final Object value;

        public PointEntryElement(Object value, String name) {

            super(name, null, "expressionbuilder-element-constant");

            this.value = value;

        }

        @Override

        public Object getValue() {

            return value;

        }

    }

    private final List<Element> childs;

    public SavedPointsElement() {

        super(ToolsLocator.getI18nManager().getTranslation("Saved points"), null, "view-query-coordinate-capture");

        ExpressionEvaluatorSwingManager evManager = ExpressionEvaluatorSwingLocator.getManager();

        TemporaryStorageManager manager = TemporaryStorageLocator.getTemporaryStorageManager();

        TemporaryStorageGroup storage = manager.create("Points", Point.class);

        this.childs = new ArrayList<>();

        for (Pair<String, Object> entry : storage.asList()) {

            ConstantElement e = new PointEntryElement(entry.getValue(),entry.getKey());

            this.childs.add(e);

        }

    }

    @Override

    public Element get(int index) {

        return this.childs.get(index);

    }

    @Override

    public int size() {

        return this.childs.size();

    }

    @Override

    public Iterator<Element> iterator() {

        return this.childs.iterator();

    }

    @Override

    public void addElement(Element element) {

        this.childs.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.childs;

    }

    @Override

    public boolean hasSubgroups() {

        return false;

    }

    @Override

    public boolean hasMoreElements() {

        return false;

    }

}

    @Override

    public boolean isAutoload() {

        return true;

    }

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

import org.gvsig.andami.IconThemeHelper;

import org.gvsig.expressionevaluator.swing.Element;

import org.gvsig.expressionevaluator.swing.ExpressionEvaluatorSwingLocator;

import org.gvsig.expressionevaluator.swing.ExpressionEvaluatorSwingManager;

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

/**

 *

 * @author jjdelcerro

 */

public class SavedPointsElementFactory extends AbstractElementFactory {

    public SavedPointsElementFactory() {

        super("CapturedPoints", null);

    }

    @Override

    public Element createElement(Object... parameters) {

        Element e = new SavedPointsElement();

        return e;

    }

    @Override

    public boolean isAutoload() {

        return true;

    }

    public static void selfRegister() {

        ExpressionEvaluatorSwingManager manager = ExpressionEvaluatorSwingLocator.getManager();

        SavedPointsElementFactory factory = new SavedPointsElementFactory();

        manager.registerElement(factory);

    }

}

import org.gvsig.fmap.geom.primitive.Point;

import org.gvsig.temporarystorage.TemporaryStorageGroup;

import org.gvsig.temporarystorage.TemporaryStorageLocator;

import org.gvsig.temporarystorage.TemporaryStorageManager;

    private class SavedPointFunction extends AbstractFunction {

        public SavedPointFunction() {

            super(

                    "Project",

                    "savedpoint",

                    Range.is(1),

                    "Return the value of the saved point with the name indicated.\n"

                            + "If the named point do not exists return null.",

                    "savedpoint({{name}})",

                    new String[]{

                        "name - String value with the name of the point"

                    },

                    "Geometry"

            );

        }

        @Override

        public Object call(Interpreter interpreter, Object[] args) throws Exception {

            TemporaryStorageManager manager = TemporaryStorageLocator.getTemporaryStorageManager();

            TemporaryStorageGroup storage = manager.create("Points",Point.class);

            Geometry value = (Geometry) storage.get(getStr(args, 0));

            return value;

        }

    }

        this.addFunction(new SavedPointFunction());

import org.gvsig.app.project.documents.view.expressionevaluator.SavedPointsElementFactory;

                SavedPointsElementFactory.selfRegister();

        builder.addElement(swingManager.createElement("View"));

        builder.addElement(

             swingManager.createElement(

            )