ChoosePanel.java

/**
 * OrbisGIS is a java GIS application dedicated to research in GIScience.
 * OrbisGIS is developed by the GIS group of the DECIDE team of the 
 * Lab-STICC CNRS laboratory, see <http://www.lab-sticc.fr/>.
 *
 * The GIS group of the DECIDE team is located at :
 *
 * Laboratoire Lab-STICC – CNRS UMR 6285
 * Equipe DECIDE
 * UNIVERSITÉ DE BRETAGNE-SUD
 * Institut Universitaire de Technologie de Vannes
 * 8, Rue Montaigne - BP 561 56017 Vannes Cedex
 * 
 * OrbisGIS is distributed under GPL 3 license.
 *
 * Copyright (C) 2007-2014 CNRS (IRSTV FR CNRS 2488)
 * Copyright (C) 2015-2017 CNRS (Lab-STICC UMR CNRS 6285)
 *
 * This file is part of OrbisGIS.
 *
 * OrbisGIS is free software: you can redistribute it and/or modify it under the
 * terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 *
 * OrbisGIS is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * OrbisGIS. If not, see <http://www.gnu.org/licenses/>.
 *
 * For more information, please consult: <http://www.orbisgis.org/>
 * or contact directly:
 * info_at_ orbisgis.org
 */
package org.orbisgis.sif.components;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.URL;
import java.util.ArrayList;
import javax.swing.*;
import org.orbisgis.sif.CRFlowLayout;
import org.orbisgis.sif.CarriageReturn;
import org.orbisgis.sif.UIFactory;
import org.orbisgis.sif.UIPanel;

public class ChoosePanel implements  UIPanel {

        private String[] names;
        private String title;
        private JList lst;
        private DefaultListModel model;
        private Object[] ids;
        private boolean multiple = false;
        private JPanel pnlButtons;
        private JPanel pane;

        public ChoosePanel(String title, String[] names, Object[] ids) {
                this.title = title;
                this.names = names;
                this.ids = ids;
                initComponent();
        }

        public void setMultiple(boolean multiple) {
                this.multiple = multiple;
                pnlButtons.setVisible(multiple);
                if (multiple) {
                        lst.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
                } else {
                        lst.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
                }
        }

        @Override
        public Component getComponent() {
                return pane;
        }

        private void initComponent() {
                pane = new JPanel();
                pane.setLayout(new BorderLayout());
                lst = new JList();
                model = new DefaultListModel();
                for (int i = 0; i < names.length; i++) {
                        model.addElement(names[i]);
                }
                lst.setModel(model);
                pane.add(new JScrollPane(lst), BorderLayout.CENTER);
                pnlButtons = new JPanel();
                CRFlowLayout flowLayout = new CRFlowLayout();
                flowLayout.setAlignment(CRFlowLayout.LEFT);
                pnlButtons.setLayout(flowLayout);
                JButton btnAll = new JButton("Select All");
                btnAll.setBorderPainted(false);
                btnAll.addActionListener(new ActionListener() {

                        @Override
                        public void actionPerformed(ActionEvent e) {
                                lst.getSelectionModel().setSelectionInterval(0,
                                        lst.getModel().getSize() - 1);
                        }
                });
                JButton btnNone = new JButton("Select none");
                btnNone.setBorderPainted(false);
                btnNone.addActionListener(new ActionListener() {

                        @Override
                        public void actionPerformed(ActionEvent e) {
                                lst.clearSelection();
                        }
                });
                pnlButtons.add(btnAll);
                pnlButtons.add(new CarriageReturn());
                pnlButtons.add(btnNone);
                pnlButtons.setVisible(multiple);
                pane.add(pnlButtons, BorderLayout.EAST);
        }

        @Override
        public String getTitle() {
                return title;
        }

        @Override
        public String validateInput() {
                if (lst.getSelectedIndex() == -1) {
                        return UIFactory.getI18n().tr("An item must be selected. ");
                }
                return null;
        }

        public Object getSelected() {
                return ids[lst.getSelectedIndex()];
        }

        public int getSelectedIndex() {
                return lst.getSelectedIndex();
        }

        public Object[] getSelectedElements() {
                ArrayList<Object> ret = new ArrayList<Object>();
                int[] indexes = lst.getSelectedIndices();
                for (int index : indexes) {
                        ret.add(ids[index]);
                }

                return ret.toArray();
        }

        @Override
        public URL getIconURL() {
                return UIFactory.getDefaultIcon();
        }
}