Application: gvSIG desktop

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package org.gvsig.export.swing.impl.panels;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.List;

import javax.swing.DefaultListModel;

import javax.swing.JComponent;

import javax.swing.JScrollPane;

import javax.swing.event.ListSelectionEvent;

import javax.swing.event.ListSelectionListener;

import org.gvsig.export.ExportLocator;

import org.gvsig.export.ExportParameters;

import org.gvsig.export.Filter;

import org.gvsig.export.spi.ExportServiceFactory;

import org.gvsig.export.swing.JExportProcessPanel;

import org.gvsig.export.swing.spi.ExportPanel;

import org.gvsig.export.swing.spi.ExportPanelValidationException;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.i18n.I18nManager;

import org.gvsig.tools.swing.api.ListElement;

/**

 *

 * @author jjdelcerro

 */

public class SelectFormatPanel 

        extends SelectFormatPanelView

        implements ExportPanel

    {

    private final JExportProcessPanel processPanel;

    private final ExportParameters parameters;

    private final Filter<ExportServiceFactory> serviceFilter;

    private final ActionListener onExitPanel;

    public SelectFormatPanel(

            JExportProcessPanel processPanel,

            ExportParameters parameters,

            Filter<ExportServiceFactory> serviceFilter,

            ActionListener onExitPanel

        ) {

        this.processPanel = processPanel;

        this.parameters = parameters;

        this.serviceFilter = serviceFilter;

        this.onExitPanel = onExitPanel;

        initComponents();

    }

    private void initComponents() {

        this.txtDescription.setBackground(this.lblEmpty.getBackground());

        this.txtDescription.setForeground(this.lblEmpty.getForeground());

        if( this.txtDescription.getParent().getParent() instanceof JScrollPane ) {

            JScrollPane scrollPanel = (JScrollPane) this.txtDescription.getParent().getParent();

            scrollPanel.setBorder(null);

        }

        List<ExportServiceFactory> factories = ExportLocator.getServiceManager()

                .getServiceFactories(serviceFilter);

        DefaultListModel model = new DefaultListModel();

        for (ExportServiceFactory factory : factories) {

            model.addElement(new ListElement(factory.getLabel(),factory));

        }

        this.lstServices.setModel(model);

        this.lstServices.addListSelectionListener(new ListSelectionListener() {

            @Override

            public void valueChanged(ListSelectionEvent e) {

                if( e.getValueIsAdjusting() ) {

                    return;

                }

                doUpdateDescription();

            }

        });

    }

    private void doUpdateDescription() {

        ExportServiceFactory factory = this.getSelectedService();

        if( factory == null ) {

            return;

        }

        this.txtDescription.setText(factory.getDescription());

        this.processPanel.setButtonEnabled(JExportProcessPanel.BUTTON_NEXT, true);

    }

    @Override

    public String getIdPanel() {

        return "SelectFormatPanel";

    }

    @Override

    public String getTitlePanel() {

        I18nManager i18n = ToolsLocator.getI18nManager();

        return i18n.getTranslation("select_format_to_export");

    }

    @Override

    public boolean validatePanel() throws ExportPanelValidationException {

        I18nManager i18n = ToolsLocator.getI18nManager();

        ExportServiceFactory factory = this.getSelectedService();

        if( factory == null ) {

            throw new ExportPanelValidationException(

                i18n.getTranslation("_You_must_select_an_item_from_the_list_of-formats")

            );

        }

        return true;

    }

    @Override

    public void enterPanel() {

    }

    @Override

    public void exitPanel() {

        this.onExitPanel.actionPerformed(new ActionEvent(this, 0, "exitPanel"));

    }

    @Override

    public JComponent asJComponent() {

        return this;

    }

    public ExportServiceFactory getSelectedService() {

        ExportServiceFactory factory = (ExportServiceFactory) ListElement.getSelected(lstServices);

        return factory;

    }

}