/*

 * Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 *   - Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer.

 *

 *   - Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution.

 *

 *   - Neither the name of Oracle or the names of its

 *     contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */ 

package Swing;

/*

 * ListSelectionDemo.java requires no other files.

 */

import javax.swing.*;

import javax.swing.event.*;

import javax.swing.table.*;

import java.util.*;

import java.awt.*;

import java.awt.event.*;

public class ListSelectionDemo extends JPanel {

    JTextArea output;

    JList list;

    JTable table;

    String newline = "\n";

    ListSelectionModel listSelectionModel;

    public ListSelectionDemo() {

        super(new BorderLayout());

        String[] listData = { "one", "two", "three", "four",

                              "five", "six", "seven" };

        String[] columnNames = { "French", "Spanish", "Italian" };

        list = new JList(listData);

        listSelectionModel = list.getSelectionModel();

        listSelectionModel.addListSelectionListener(

                new SharedListSelectionHandler());

        JScrollPane listPane = new JScrollPane(list);

        JPanel controlPane = new JPanel();

        String[] modes = { "SINGLE_SELECTION",

                           "SINGLE_INTERVAL_SELECTION",

                           "MULTIPLE_INTERVAL_SELECTION" };

        final JComboBox comboBox = new JComboBox(modes);

        comboBox.setSelectedIndex(2);

        comboBox.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {

                String newMode = (String)comboBox.getSelectedItem();

                if (newMode.equals("SINGLE_SELECTION")) {

                    listSelectionModel.setSelectionMode(

                        ListSelectionModel.SINGLE_SELECTION);

                } else if (newMode.equals("SINGLE_INTERVAL_SELECTION")) {

                    listSelectionModel.setSelectionMode(

                        ListSelectionModel.SINGLE_INTERVAL_SELECTION);

                } else {

                    listSelectionModel.setSelectionMode(

                        ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);

                }

                output.append("----------"

                              + "Mode: " + newMode

                              + "----------" + newline);

            }

        });

        controlPane.add(new JLabel("Selection mode:"));

        controlPane.add(comboBox);

        //Build output area.

        output = new JTextArea(1, 10);

        output.setEditable(false);

        JScrollPane outputPane = new JScrollPane(output,

                         ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,

                         ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);

        //Do the layout.

        JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT);

        add(splitPane, BorderLayout.CENTER);

        JPanel topHalf = new JPanel();

        topHalf.setLayout(new BoxLayout(topHalf, BoxLayout.LINE_AXIS));

        JPanel listContainer = new JPanel(new GridLayout(1,1));

        listContainer.setBorder(BorderFactory.createTitledBorder(

                                                "List"));

        listContainer.add(listPane);

    topHalf.setBorder(BorderFactory.createEmptyBorder(5,5,0,5));

        topHalf.add(listContainer);

        //topHalf.add(tableContainer);

        topHalf.setMinimumSize(new Dimension(100, 50));

        topHalf.setPreferredSize(new Dimension(100, 110));

        splitPane.add(topHalf);

        JPanel bottomHalf = new JPanel(new BorderLayout());

        bottomHalf.add(controlPane, BorderLayout.PAGE_START);

        bottomHalf.add(outputPane, BorderLayout.CENTER);

        //XXX: next line needed if bottomHalf is a scroll pane:

        //bottomHalf.setMinimumSize(new Dimension(400, 50));

        bottomHalf.setPreferredSize(new Dimension(450, 135));

        splitPane.add(bottomHalf);

    }

    /**

     * Create the GUI and show it.  For thread safety,

     * this method should be invoked from the

     * event-dispatching thread.

     */

    private static void createAndShowGUI() {

        //Create and set up the window.

        JFrame frame = new JFrame("ListSelectionDemo");

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //Create and set up the content pane.

        ListSelectionDemo demo = new ListSelectionDemo();

        demo.setOpaque(true);

        frame.setContentPane(demo);

        //Display the window.

        frame.pack();

        frame.setVisible(true);

    }

    public static void main(String[] args) {

        //Schedule a job for the event-dispatching thread:

        //creating and showing this application's GUI.

        javax.swing.SwingUtilities.invokeLater(new Runnable() {

            public void run() {

                createAndShowGUI();

            }

        });

    }

    class SharedListSelectionHandler implements ListSelectionListener {

        public void valueChanged(ListSelectionEvent e) {

            ListSelectionModel lsm = (ListSelectionModel)e.getSource();

            //System.out.printf("LeadSelectionIndex is %s%n",lsm.getLeadSelectionIndex());

            output.append("LeadSelectionIndex is " + lsm.getLeadSelectionIndex() + "\n");

            int firstIndex = e.getFirstIndex();

            int lastIndex = e.getLastIndex();

            boolean isAdjusting = e.getValueIsAdjusting();

            output.append("Event for indexes "

                          + firstIndex + " - " + lastIndex

                          + "; isAdjusting is " + isAdjusting

                          + "; selected indexes:");

            if (lsm.isSelectionEmpty()) {

                output.append(" <none>");

            } else {

                // Find out which indexes are selected.

                int minIndex = lsm.getMinSelectionIndex();

                int maxIndex = lsm.getMaxSelectionIndex();

                for (int i = minIndex; i <= maxIndex; i++) {

                    if (lsm.isSelectedIndex(i)) {

                        output.append(" " + i);

                    }

                }

            }

            output.append(newline);

            output.setCaretPosition(output.getDocument().getLength());

        }

    }

}