Application: gvSIG desktop

package org.gvsig.app.project.documents.view.legend.gui.legendactions;

import java.awt.Component;

import java.awt.event.ActionEvent;

import java.io.File;

import java.util.ArrayList;

import java.util.List;

import javax.swing.AbstractAction;

import javax.swing.Action;

import javax.swing.JFileChooser;

import javax.swing.JOptionPane;

import org.gvsig.andami.PluginServices;

import org.gvsig.app.ApplicationLocator;

import org.gvsig.app.project.documents.view.legend.gui.LegendFileFilter;

import org.gvsig.app.project.documents.view.legend.gui.LegendsPanel;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.mapcontext.MapContextLocator;

import org.gvsig.fmap.mapcontext.MapContextManager;

import org.gvsig.fmap.mapcontext.rendering.legend.ILegend;

import org.gvsig.fmap.mapcontext.rendering.legend.driver.ILegendReader;

import org.gvsig.i18n.Messages;

public class LoadLegendAction extends AbstractLoadSaveLegendAction {

    private static final long serialVersionUID = 8023893921676942206L;

    public LoadLegendAction() {

        super();

        this.putValue(Action.NAME, PluginServices.getText(this, "Recuperar_leyenda") + "...");

    }

    @Override

    public void actionPerformed(ActionEvent e) {

        if( ! (e.getSource() instanceof LegendsPanel) ) {

            return;

        }

        try {

            loadLegend((LegendsPanel) e.getSource());

        } catch (Exception e1) {

            JOptionPane.showMessageDialog(

                ApplicationLocator.getManager().getRootComponent(),

                Messages.getText("_Unable_to_read_legend")

                + "\n\n" + e1.getMessage(),

                Messages.getText("legend"),

                JOptionPane.WARNING_MESSAGE);

        }

    }

    private void loadLegend(LegendsPanel legends) throws Exception {

        List<LegendFileFilter> filters = getLegendFileFilters(false);

        if( filters.isEmpty() ) {

            JOptionPane.showMessageDialog(

                ApplicationLocator.getManager().getRootComponent(),

                Messages.getText("_No_input_format_available"),

                Messages.getText("legend"),

                JOptionPane.WARNING_MESSAGE);

            return;

        }

        JFileChooser fileChooser = new JFileChooser();

        fileChooser.setAcceptAllFileFilterUsed(false);

        for( int i = 0; i < filters.size(); i++ ) {

            fileChooser.addChoosableFileFilter(filters.get(i));

        }

        // open a file

        if( fileChooser.showOpenDialog((Component) PluginServices

            .getMainFrame()) == JFileChooser.APPROVE_OPTION ) {

            File file = fileChooser.getSelectedFile();

            LegendFileFilter lff = (LegendFileFilter) fileChooser.getFileFilter();

            MapContextManager mcoman = MapContextLocator.getMapContextManager();

            ILegendReader lr = mcoman.createLegendReader(lff.getFileExtension());

            ILegend leg = lr.read(file, Geometry.TYPES.GEOMETRY);

            legends.setLegend(leg);

        }

    }

}