/** * Copyright 2001 Sun Microsystems, Inc. *  * See the file "license.terms" for information on usage and * redistribution of this file, and for a DISCLAIMER OF ALL  * WARRANTIES. */import java.awt.Color;import java.awt.Component;import java.awt.Container;import java.awt.Cursor;import java.awt.BorderLayout;import java.awt.Dimension;import java.awt.FlowLayout;import java.awt.GridLayout;import java.awt.GridBagLayout;import java.awt.GridBagConstraints;import java.awt.Insets;import java.awt.event.ActionListener;import java.awt.event.ActionEvent;import java.awt.event.WindowAdapter;import java.awt.event.WindowEvent;import javax.swing.BorderFactory;import javax.swing.ComboBoxModel;import javax.swing.ListModel;import javax.swing.ListSelectionModel;import javax.swing.JButton;import javax.swing.JComboBox;import javax.swing.JComponent;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JList;import javax.swing.JPanel;import javax.swing.JTextArea;import javax.swing.JToggleButton;import javax.swing.JScrollPane;import javax.swing.JSlider;import javax.swing.SwingUtilities;import javax.swing.UIManager;import javax.swing.UnsupportedLookAndFeelException;import javax.swing.border.Border;import javax.swing.border.EtchedBorder;import javax.swing.border.TitledBorder;import javax.swing.event.ChangeListener;import javax.swing.event.ChangeEvent;import javax.swing.plaf.basic.BasicArrowButton;import javax.swing.plaf.metal.MetalLookAndFeel;/** * Defines and contains all the user-interface Swing objects of the Player. * In terms of the model-view-controller (MVC) architecture, this implements * the "view" and "control" elements. Its interacts with the PlayerModel  * class, the "model" element. */public class PlayerPanel extends JPanel {    private PlayerModel playerModel;        private int width = 600;    private int height = 450;    private int border = 30;    private Color backgroundColor = Color.LIGHT_GRAY;    private Color foregroundColor = Color.BLACK;    private Color controlColor = new Color(250, 250, 250);                                private JComboBox synthesizerComboBox;    private JComboBox waveSynthesisComboBox;    private JComboBox voiceComboBox;            private JTextArea speakingTextArea;    private JList speakablesList;    private int speakablesListVisibleRows = 5;        private JToggleButton pauseButton;    private JButton playButton;    private JButton cancelButton;    private JButton stopButton;    private JButton deleteButton;        private int initialVolume = 10;    private JSlider volumeSlider;    private JSlider speedSlider;    private JSlider pitchSlider;    private JSlider rangeSlider;        private JButton fileButton;    private JTextArea textArea;    private int textAreaRows = 2;    private int textAreaColumns = 20;    private JButton clearTextButton;    private JButton speakTextButton;    private JButton speakJSMLButton;    private static char cancelMnemonic = 'A';    private static char clearMnemonic = 'C';    private static char deleteMnemonic = 'D';    private static char pauseMnemonic = 'U';    private static char pitchMnemonic = 'H';    private static char playMnemonic = 'P';    private static char playListMnemonic = 'L';    private static char rangeMnemonic = 'R';    private static char resumeMnemonic = 'E';    private static char stopMnemonic = 'T';    private static char speakMnemonic = 'S';    private static char speakJSMLMnemonic = 'J';    private static char synthesizerMnemonic = 'Y';    private static char textMnemonic = 'X';    private static char voiceMnemonic = 'O';    private static char volumeMnemonic = 'V';    private static char wordsPerMinMnemonic = 'W';            /**     * Constructs a PlayerPanel that interacts with the given PlayerModel.     *     * @param playerModel the PlayerModel that this PlayerPanel interacts     *   with.     */        public PlayerPanel(PlayerModel playerModel) {	this.playerModel = playerModel;		setSize(width, height);	setAlignmentY((float) 0.5);	setAlignmentX((float) 0.5);		setLayout(new BorderLayout());	add(createMainPanel(), BorderLayout.NORTH);	add(createTextPanel(), BorderLayout.CENTER);	    }    /**     * Creates the main JPanel that is the upper JPanel of the     * user interface. It contains:     * <ol>     * <li> (on the left) volume and speaking rate control slides     * <li> (center) the synthesizer/voice selection combo boxes,     * the play list, and the buttons     * <li> (on the right) pitch and range control slides     * </ol>     *     * @return the upper JPanel of the application with all the controls     *    and play list      */    private JPanel createMainPanel() {	JPanel centerPanel = new JPanel();	centerPanel.setLayout(new BorderLayout());	centerPanel.add(createLeftSliderPanel(), BorderLayout.WEST);	centerPanel.add(createSpeakablesPanel(), BorderLayout.CENTER);	centerPanel.add(createRightSliderPanel(), BorderLayout.EAST);		return centerPanel;    }    /**     * Creates the TitledBordered JPanel and the play list it contains.     * This Panel is at the center of the Main Panel. The play list is     * contained within a JScrollPane.     *     * @return a JPanel that containts the play list     */    private JPanel createSpeakablesPanel() {	       	ListModel playList = playerModel.getPlayList();	speakablesList = new JList(playList);	speakablesList.setVisibleRowCount(speakablesListVisibleRows);	speakablesList.setSelectionMode	    (ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);	speakablesList.setSelectedIndex(0);	speakablesList.setDragEnabled(true);		JLabel listTitle = new JLabel("Play List");	listTitle.setDisplayedMnemonic(playListMnemonic);	listTitle.setLabelFor(speakablesList);		JScrollPane scrollPane = new JScrollPane(speakablesList);	scrollPane.add(listTitle);	JPanel centerPanel = new JPanel(new BorderLayout());	centerPanel.add(listTitle, BorderLayout.NORTH);	centerPanel.add(scrollPane, BorderLayout.CENTER);	centerPanel.add(createControlsPanel(), BorderLayout.SOUTH);				TitledBorder titledBorder = new TitledBorder("");	titledBorder.setTitleColor(foregroundColor);	titledBorder.setTitleJustification(TitledBorder.CENTER);	titledBorder.setBorder(new EtchedBorder(Color.WHITE, Color.BLACK));	centerPanel.setBorder(titledBorder);				JPanel speakablesPanel = new JPanel(new BorderLayout());	speakablesPanel.add(createSettingsPanel(), BorderLayout.NORTH);	speakablesPanel.add(centerPanel, BorderLayout.CENTER);		return speakablesPanel;    }    /**     * Creates the settings JPanel and the synthesizer and voice     * JComboBoxes it contains. This JPanel is inside the speakables Panel.     *     * @return the JPanel of synthesizer and voice JComboBoxes     */    private JPanel createSettingsPanel() {	synthesizerComboBox = createComboBox	    ((ComboBoxModel) playerModel.getSynthesizerList(),	     "Synthesizer", "FreeTTS Synthesizer");				voiceComboBox = createComboBox	    ((ComboBoxModel) playerModel.getVoiceList(),	     "Voice", "Voice");		JLabel synthesizerLabel = new JLabel("Synthesizer:");	synthesizerLabel.setDisplayedMnemonic(synthesizerMnemonic);	synthesizerLabel.setLabelFor(synthesizerComboBox);	JLabel voiceLabel = new JLabel("Voice:");	voiceLabel.setDisplayedMnemonic(voiceMnemonic);	voiceLabel.setLabelFor(voiceComboBox);		JPanel leftPanel = new JPanel(new BorderLayout());	leftPanel.add(synthesizerLabel, BorderLayout.NORTH);	leftPanel.add(synthesizerComboBox, BorderLayout.CENTER);	JPanel rightPanel = new JPanel(new BorderLayout());	rightPanel.add(voiceLabel, BorderLayout.NORTH);	rightPanel.add(voiceComboBox, BorderLayout.CENTER);	JPanel settingsPanel = new JPanel();		FlowLayout flowLayout = new FlowLayout();	flowLayout.setAlignment(FlowLayout.CENTER);	settingsPanel.setLayout(flowLayout);	settingsPanel.add(leftPanel);	settingsPanel.add(rightPanel);			addComboBoxListeners();			return settingsPanel;    }    /**     * Creates a non-editable ComboBox with the given attributes.     *     * @param model the ComboBoxModel this ComboBox is based on     * @param toolTipText the tooltip text     * @param prototypeDisplayValue the String used to calculate the     *    width of the ComboBox     */    public JComboBox createComboBox(ComboBoxModel model, String toolTipText,				    String prototypeDisplayValue) {	JComboBox comboBox = new JComboBox(model);	comboBox.setToolTipText(toolTipText);	comboBox.setPrototypeDisplayValue(prototypeDisplayValue);	comboBox.setEditable(false);	return comboBox;    }    /**     * Adds listeners for the synthesizer and voices JComboBoxes     */    private void addComboBoxListeners() {	synthesizerComboBox.addActionListener(new ActionListener() 	    {		public void actionPerformed(ActionEvent e) {		    int selectedIndex = synthesizerComboBox.getSelectedIndex();		    Monitor monitor = playerModel.getMonitor();		    if (monitor != playerModel.getMonitor(selectedIndex)) {			if (monitor != null) {			    monitor.setVisible(false);			}			if (playerModel.isMonitorVisible()) {			    monitor = playerModel.getMonitor(selectedIndex);			    monitor.setVisible(true);			    add(monitor, BorderLayout.SOUTH);			}			playerModel.setSynthesizer(selectedIndex);		    }		}	    });	voiceComboBox.addActionListener(new ActionListener() {		public void actionPerformed(ActionEvent e) {		    Cursor oldCursor = getCursor();		    setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));		    playerModel.setVoice(voiceComboBox.getSelectedIndex());		    setCursor(oldCursor);		    updateSliders();		}	    });    }    /**     * Creates the JPanel and the buttons it contains.     *     * @return a JPanel that contains the buttons.      */    private JPanel createControlsPanel() {			// create the buttons	playButton = createJButton("Play", playMnemonic);	cancelButton = createJButton("Cancel", cancelMnemonic);	stopButton = createJButton("Stop", stopMnemonic);	pauseButton = new JToggleButton("Pause");	pauseButton.setToolTipText("Pause");	pauseButton.setMnemonic(pauseMnemonic);	setControlColors(pauseButton);	JPanel buttonsPanel = new JPanel();	buttonsPanel.add(pauseButton);	buttonsPanel.add(playButton);	buttonsPanel.add(cancelButton);	buttonsPanel.add(stopButton);			JPanel controlsPanel = new JPanel(new BorderLayout());