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 JApplet {
    JTextArea output;
    JList list; 
    JTable table;
    String newline = "\n";
    ListSelectionModel listSelectionModel;

    private boolean inAnApplet = true;

    //Hack to avoid ugly message about system event access check.
    public ListSelectionDemo() {
        this(true);
    }

    public ListSelectionDemo(boolean inAnApplet) {
        this.inAnApplet = inAnApplet;
        if (inAnApplet) {
            getRootPane().putClientProperty("defeatSystemEventQueueCheck",
                                            Boolean.TRUE);
        }
    }

    public void init() {
        //newline = System.getProperty("line.separator");

	String[] listData = { "one", "two", "three", "four",
			      "five", "six", "seven" };
	String[] columnNames = { "French", "Spanish", "Italian" };
	String[][] tableData = {{"un",     "uno",     "uno"     },
                                {"deux",   "dos",     "due"     },
                                {"trois",  "tres",    "tre"     },
                                { "quatre", "cuatro",  "quattro"},
                                { "cinq",   "cinco",   "cinque" },
                                { "six",    "seis",    "sei"    },
                                { "sept",   "siete",   "sette"  } };

        list = new JList(listData);

	listSelectionModel = list.getSelectionModel();
        listSelectionModel.addListSelectionListener(
				new SharedListSelectionHandler());
        JScrollPane listPane = new JScrollPane(list);

        table = new JTable(tableData, columnNames);
        table.setSelectionModel(listSelectionModel);
        JScrollPane tablePane = new JScrollPane(table);

	//build control area (use default FlowLayout)
	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(10, 40);
        output.setEditable(false);
        JScrollPane outputPane = new JScrollPane(output,
                         ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,
                         ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);

        //do the layout
        JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT);
        setContentPane(splitPane);

        //XXX: used a Box at first, but you can't call setMinimumSize on it
        JPanel topHalf = new JPanel();
        topHalf.setLayout(new BoxLayout(topHalf, BoxLayout.X_AXIS));
	JPanel listContainer = new JPanel(new GridLayout(1,1));
	listContainer.setBorder(BorderFactory.createTitledBorder(
						"List"));
	listContainer.add(listPane);
	JPanel tableContainer = new JPanel(new GridLayout(1,1));
	tableContainer.setBorder(BorderFactory.createTitledBorder(
						"Table"));
	tableContainer.add(tablePane);
        tablePane.setPreferredSize(new Dimension(300, 100));
	topHalf.setBorder(BorderFactory.createEmptyBorder(5,5,0,5));
        topHalf.add(listContainer);
        topHalf.add(tableContainer);

        topHalf.setMinimumSize(new Dimension(400, 50));
        topHalf.setPreferredSize(new Dimension(400, 110));
        splitPane.add(topHalf);

	JPanel bottomHalf = new JPanel(new BorderLayout());
	bottomHalf.add(controlPane, BorderLayout.NORTH);
	bottomHalf.add(outputPane, BorderLayout.CENTER);
	//XXX: the next line is necessary if bottomHalf is a scroll pane:
        //bottomHalf.setMinimumSize(new Dimension(400, 50));
        bottomHalf.setPreferredSize(new Dimension(450, 135));
        splitPane.add(bottomHalf);
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("ListSelectionDemo");
        frame.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });

        ListSelectionDemo listDemo = new ListSelectionDemo(false);
        listDemo.init();

        frame.setContentPane(listDemo);
        frame.pack();
        frame.setVisible(true);
    }

    class SharedListSelectionHandler implements ListSelectionListener {
        public void valueChanged(ListSelectionEvent e) { 
	    ListSelectionModel lsm = (ListSelectionModel)e.getSource();

            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);
        }
    }
}