| gvSIG desktop 1

package org.gvsig.newlayer.impl;

import java.awt.BorderLayout;

import javax.swing.DefaultListSelectionModel;

import javax.swing.JList;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.ListModel;

import javax.swing.event.ListSelectionEvent;

import javax.swing.event.ListSelectionListener;

import org.gvsig.gui.beans.wizard.panel.NotContinueWizardException;

import org.gvsig.gui.beans.wizard.panel.OptionPanel;

import org.gvsig.newlayer.NewLayerProviderFactory;

import org.gvsig.newlayer.NewLayerService;

import org.gvsig.newlayer.NewLayerWizard;

public class TypeSelectorPanel extends JPanel implements OptionPanel{

        /**

         * 

         */

        private static final long serialVersionUID = 419873365484240927L;

        private NewLayerWizard wizard;

    private NewLayerProviderFactory currentType;

        public TypeSelectorPanel(NewLayerWizard wizard){

                this.wizard = wizard;

                initializeComponents();

        }

        public String getPanelTitle() {

                return "Type selector panel";

        }

        public void nextPanel() throws NotContinueWizardException {

                if (currentType!=null){

                        this.wizard.setType(currentType);

                        return;

                }

                throw new NotContinueWizardException("", null, false);

        }

        public void lastPanel() {

                // do nothing

        }

        public void updatePanel() {

                initializeComponents();

        }

        public JPanel getJPanel() {

                return this;

        }

    private void initializeComponents() {

        this.setLayout(new BorderLayout());

        JList types = new JList();     

        ListModel model =

            new org.gvsig.utils.DefaultListModel(this.getService()

                .getProviderFactories());

        types.setModel(model);

        types.setSelectionMode(DefaultListSelectionModel.SINGLE_SELECTION);

        types.addListSelectionListener(new ListSelectionListener() {

                        public void valueChanged(ListSelectionEvent e) {

                                if (e.getValueIsAdjusting() == false) {

                                        JList list = (JList) e.getSource();

                                if (list.getSelectedIndex() > -1) {

                        currentType =

                            (NewLayerProviderFactory) list.getSelectedValue();

                        wizard.setNextButtonEnabled(true);

                                } else {

                                    wizard.setNextButtonEnabled(false);

                                }

                            }

                        }

                });

        JScrollPane scrollPane = new JScrollPane();

        scrollPane.setViewportView(types);

        this.add(scrollPane, BorderLayout.CENTER);        

    }

        private NewLayerService getService() {

                return this.wizard.getService();

        } 

}