view/std/JSLSConsolePane.java

/*
 *   JSampler - a java front-end for LinuxSampler
 *
 *   Copyright (C) 2005-2007 Grigor Iliev <grigor@grigoriliev.com>
 *
 *   This file is part of JSampler.
 *
 *   JSampler is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License version 2
 *   as published by the Free Software Foundation.
 *
 *   JSampler 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 JSampler; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *   MA  02111-1307  USA
 */

package org.jsampler.view.std;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Point;
import java.awt.Window;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.StringReader;

import java.util.logging.Level;

import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.JTextPane;
import javax.swing.JWindow;
import javax.swing.KeyStroke;
import javax.swing.ListSelectionModel;
import javax.swing.SwingUtilities;
import javax.swing.TransferHandler;

import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;

import javax.swing.text.Style;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyleContext;
import javax.swing.text.StyledDocument;

import org.jsampler.CC;
import org.jsampler.DefaultLSConsoleModel;
import org.jsampler.HF;
import org.jsampler.Instrument;
import org.jsampler.JSPrefs;
import org.jsampler.LSConsoleModel;
import org.jsampler.LscpUtils;

import org.jsampler.event.LSConsoleEvent;
import org.jsampler.event.LSConsoleListener;

import static javax.swing.KeyStroke.*;
import static org.jsampler.view.std.JSLSConsolePane.*;
import static org.jsampler.view.std.StdPrefs.*;


/**
 *
 * @author Grigor Iliev
 */
public class JSLSConsolePane extends JPanel {
        private enum AutocompleteMode { AUTOCOMPLETE, HISTORY_SEARCH, CMD_LIST_SEARCH }
        private AutocompleteMode autocompleteMode = AutocompleteMode.AUTOCOMPLETE;
        
        private Window owner;
        
        private final LSConsoleTextPane console = new LSConsoleTextPane();
        
        private final JPanel inputPane = new JPanel();
        private final JLabel lInput = new JLabel();
        private final JTextField tfSearch = new JTextField();
        private final CmdLineTextField tfInput = new CmdLineTextField();
        
        private AutoCompleteWindow autoCompleteWindow;
        
        private final LSConsoleModel model = new DefaultLSConsoleModel();
        
        private final StringBuffer consoleText = new StringBuffer();
        
        private boolean processingSearch = false;
        
        protected JPanel mainPane = new JPanel();
        
        
        /**
         * Creates a new instance of <code>JSLSConsolePane</code>.
         */
        public
        JSLSConsolePane(Window owner) {
                setOwner(owner);
                setLayout(new java.awt.BorderLayout());
                
                int i = preferences().getIntProperty(LS_CONSOLE_HISTSIZE);
                model.setCommandHistorySize(i);
                
                loadConsoleHistory();
                
                mainPane.setOpaque(false);
                mainPane.setLayout(new BoxLayout(mainPane, BoxLayout.Y_AXIS));
                
                i = preferences().getIntProperty(LS_CONSOLE_BACKGROUND_COLOR);
                setBackgroundColor(new Color(i));
                
                i = preferences().getIntProperty(LS_CONSOLE_TEXT_COLOR);
                setTextColor(new Color(i));
                
                mainPane.add(new JScrollPane(console));
                
                inputPane.setLayout(new BoxLayout(inputPane, BoxLayout.X_AXIS));
                inputPane.setBorder(tfInput.getBorder());
                tfInput.setBorder(BorderFactory.createEmptyBorder());
                tfSearch.setBorder(BorderFactory.createEmptyBorder());
                
                lInput.setOpaque(false);
                lInput.setVisible(false);
                inputPane.add(lInput);
                
                Dimension d = new Dimension(Short.MAX_VALUE, tfSearch.getPreferredSize().height);
                tfSearch.setMaximumSize(d);
                
                tfSearch.setVisible(false);
                tfSearch.setFocusTraversalKeysEnabled(false);
                inputPane.add(tfSearch);
                
                d = new Dimension(Short.MAX_VALUE, tfInput.getPreferredSize().height);
                tfInput.setMaximumSize(d);
                
                tfInput.setFocusTraversalKeysEnabled(false);
                inputPane.add(tfInput);
                
                mainPane.add(inputPane);
                
                add(mainPane);
                
                tfInput.addActionListener(getHandler());
                tfInput.getDocument().addDocumentListener(getHandler());
                getModel().addLSConsoleListener(getHandler());
                
                tfSearch.addActionListener(new Actions(Actions.APPLY_SEARCH));
                
                installKeyboardListeners();
        }
        
        private JSPrefs
        preferences() { return CC.getViewConfig().preferences(); }
        
        private void
        installKeyboardListeners() {
                KeyStroke k = getKeyStroke(KeyEvent.VK_TAB, 0);
                tfInput.getInputMap(WHEN_FOCUSED).put(k, Actions.AUTOCOMPLETE);
                tfInput.getActionMap().put(Actions.AUTOCOMPLETE, new Actions(Actions.AUTOCOMPLETE));
                
                k = getKeyStroke(KeyEvent.VK_R, InputEvent.CTRL_MASK);
                tfInput.getInputMap(WHEN_FOCUSED).put(k, Actions.HISTORY_SEARCH);
                tfInput.getActionMap().put (
                        Actions.HISTORY_SEARCH, new Actions(Actions.HISTORY_SEARCH)
                );
                
                k = getKeyStroke(KeyEvent.VK_F, InputEvent.CTRL_MASK);
                tfInput.getInputMap(WHEN_FOCUSED).put(k, Actions.CMD_LIST_SEARCH);
                tfInput.getActionMap().put (
                        Actions.CMD_LIST_SEARCH, new Actions(Actions.CMD_LIST_SEARCH)
                );
                
                k = getKeyStroke(KeyEvent.VK_UP, 0);
                tfInput.getInputMap(JComponent.WHEN_FOCUSED).put(k, Actions.MOVE_UP);
                tfInput.getActionMap().put(Actions.MOVE_UP, new Actions(Actions.MOVE_UP));
                
                k = getKeyStroke(KeyEvent.VK_DOWN, 0);
                tfInput.getInputMap(WHEN_FOCUSED).put(k, Actions.MOVE_DOWN);
                tfInput.getActionMap().put(Actions.MOVE_DOWN, new Actions(Actions.MOVE_DOWN));
                
                k = getKeyStroke(KeyEvent.VK_HOME, 0);
                tfInput.getInputMap(WHEN_FOCUSED).put(k, Actions.MOVE_HOME);
                tfInput.getActionMap().put(Actions.MOVE_HOME, new Actions(Actions.MOVE_HOME));
                
                k = getKeyStroke(KeyEvent.VK_END, 0);
                tfInput.getInputMap(WHEN_FOCUSED).put(k, Actions.MOVE_END);
                tfInput.getActionMap().put(Actions.MOVE_END, new Actions(Actions.MOVE_END));
                
                k = getKeyStroke(KeyEvent.VK_L, InputEvent.CTRL_MASK);
                tfInput.getInputMap(WHEN_FOCUSED).put(k, Actions.CLEAR_CONSOLE);
                tfInput.getActionMap().put (
                        Actions.CLEAR_CONSOLE, new Actions(Actions.CLEAR_CONSOLE)
                );
                
                k = getKeyStroke(KeyEvent.VK_ESCAPE, 0);
                tfInput.getInputMap(WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put (
                        k, Actions.CANCEL_SELECTION
                );
                tfInput.getActionMap().put (
                        Actions.CANCEL_SELECTION, new Actions(Actions.CANCEL_SELECTION)
                );
                
                k = getKeyStroke(KeyEvent.VK_D, InputEvent.CTRL_MASK);
                tfInput.getInputMap(WHEN_FOCUSED).put(k, Actions.QUIT_SESSION);
                tfInput.getActionMap().put(Actions.QUIT_SESSION, new Actions(Actions.QUIT_SESSION));
                
                
                k = getKeyStroke(KeyEvent.VK_UP, 0);
                tfSearch.getInputMap(WHEN_FOCUSED).put(k, Actions.MOVE_UP);
                tfSearch.getActionMap().put(Actions.MOVE_UP, new Actions(Actions.MOVE_UP));
                
                k = getKeyStroke(KeyEvent.VK_DOWN, 0);
                tfSearch.getInputMap(WHEN_FOCUSED).put(k, Actions.MOVE_DOWN);
                tfSearch.getActionMap().put(Actions.MOVE_DOWN, new Actions(Actions.MOVE_DOWN));
                
                k = getKeyStroke(KeyEvent.VK_HOME, 0);
                tfSearch.getInputMap(WHEN_FOCUSED).put(k, Actions.MOVE_HOME);
                tfSearch.getActionMap().put(Actions.MOVE_HOME, new Actions(Actions.MOVE_HOME));
                
                k = getKeyStroke(KeyEvent.VK_END, 0);
                tfSearch.getInputMap(WHEN_FOCUSED).put(k, Actions.MOVE_END);
                tfSearch.getActionMap().put(Actions.MOVE_END, new Actions(Actions.MOVE_END));
                
                k = getKeyStroke(KeyEvent.VK_ESCAPE, 0);
                tfSearch.getInputMap(WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put (
                        k, Actions.CANCEL_SEARCH
                );
                tfSearch.getActionMap().put (
                        Actions.CANCEL_SEARCH, new Actions(Actions.CANCEL_SEARCH)
                );
        }
        
        private void
        loadConsoleHistory() {
                String s = CC.getJSamplerHome();
                if(s == null) return;
                
                File f = new File(s + File.separator + "console_history");
                if(!f.isFile()) return;
                
                try {
                        BufferedReader br = new BufferedReader(new FileReader(f));
                        s = br.readLine();
                        while(s != null) {
                                getModel().addToCommandHistory(s);
                                s = br.readLine();
                        }
                        br.close();
                } catch(Exception x) {
                        CC.getLogger().log(Level.INFO, HF.getErrorMessage(x), x);
                }
        }
        
        protected JTextPane
        getLSConsoleTextPane() { return console; }
        
        /**
         * Saves the console history into the <code>console_history</code>
         * file, located in the JSampler's home directory.
         */
        public void
        saveConsoleHistory() {
                if(CC.getJSamplerHome() == null) return;
                
                try {
                        String s = CC.getJSamplerHome() + File.separator + "console_history";
                        FileOutputStream fos = new FileOutputStream(s, false);
                        
                        for(String line : getModel().getCommandHistory()) {
                                fos.write(line.getBytes("US-ASCII"));
                                fos.write('\n');
                        }
                        
                        fos.close();
                } catch(Exception x) {
                        CC.getLogger().log(Level.INFO, HF.getErrorMessage(x), x);
                }
        }
        
        /**
         * Delete the <code>console_history</code> file, located in the
         * JSampler's home directory.
         */
        public static void
        clearConsoleHistory() {
                String s = CC.getJSamplerHome();
                if(s == null) return;
                
                File f = new File(s + File.separator + "console_history");
                if(f.isFile()) f.delete();
        }
        
        /**
         * Gets the LS Console data model.
         * @return The LS Console data model.
         */
        public LSConsoleModel
        getModel() { return model; }
        
        /**
         * Sets the text color of the LS Console.
         * @param c The text color of the LS Console.
         */
        public void
        setTextColor(Color c) {
                console.setTextColor(c);
                
                lInput.setForeground(c);
                tfInput.setForeground(c);
                tfSearch.setForeground(c);
                
                autoCompleteWindow.setTextColor(c);
        }
        
        /**
         * Gets the text color of the LS Console.
         * @return The text color of the LS Console.
         */
        public Color
        getTextColor() { return console.getTextColor(); }
        
        /**
         * Sets the background color of the LS Console.
         * @param c The background color of the LS Console.
         */
        public void
        setBackgroundColor(Color c) {
                console.setBackground(c);
                
                lInput.setBackground(c);
                inputPane.setBackground(c);
                tfInput.setBackground(c);
                tfSearch.setBackground(c);
                
                autoCompleteWindow.setBackgroundColor(c);
        }
        
        /**
         * Gets the background color of the LS Console.
         * @return The background color of the LS Console.
         */
        public Color
        getBackgroundColor() { return console.getBackground(); }
        
        /**
         * Sets the notification messages' color.
         * @param c The notification messages' color.
         */
        public void
        setNotifyColor(Color c) { console.setNotifyColor(c); }
        
        /**
         * Sets the warning messages' color.
         * @param c The warning messages' color.
         */
        public void
        setWarningColor(Color c) { console.setWarningColor(c); }
        
        /**
         * Sets the error messages' color.
         * @param c The error messages' color.
         */
        public void
        setErrorColor(Color c) { console.setErrorColor(c); }
        
        public class CmdLineTextField extends JTextField {
                CmdLineTextField() {
                        setTransferHandler(new TransferHandler("instrumentLoad"));
                }
                
                public String
                getInstrumentLoad() { return getSelectedText(); }
                
                public void setInstrumentLoad(String instr) {
                        if(instr == null) return;
                        
                        if(!Instrument.isDnDString(instr)) {
                                replaceSelection(instr);
                                return;
                        }
                        
                        String[] args = instr.split("\n");
                        if(args.length < 6) return;
                        
                        String s = "LOAD INSTRUMENT NON_MODAL '" + args[4] + "' " + args[5] + " ";
                        getModel().setCommandLineText(s);
                        requestFocus();
                }
        }
        
        public void
        setOwner(Window owner) {
                if(autoCompleteWindow != null && autoCompleteWindow.isVisible())
                        autoCompleteWindow.setVisible(false);
                
                autoCompleteWindow = new AutoCompleteWindow(owner);
                
                if(getOwner() != null) getOwner().removeWindowListener(getHandler());
                owner.addWindowListener(getHandler());
                
                this.owner = owner;
        }
        
        public Window
        getOwner() { return owner; }
        
        /** Hides the autocomplete window. */
        public void
        hideAutoCompleteWindow() { autoCompleteWindow.setVisible(false); }
        
        protected void
        quitSession() {
                getModel().clearSessionHistory();
                console.setText("");
        }
        
        
        private final SearchHandler searchHandler = new SearchHandler();
        
        private SearchHandler
        getSearchHandler() { return searchHandler; }
        
        private class SearchHandler implements DocumentListener {
                // DocumentListener
                public void
                insertUpdate(DocumentEvent e) { processSearch(); }
                
                public void
                removeUpdate(DocumentEvent e) { processSearch(); }
                
                public void
                changedUpdate(DocumentEvent e) { processSearch(); }
        }
        
                
        private final Handler eventHandler = new Handler();
        
        private Handler
        getHandler() { return eventHandler; }
        
        private class Handler extends WindowAdapter
                                implements ActionListener, DocumentListener, LSConsoleListener {
                
                // ActionListener
                public void
                actionPerformed(ActionEvent e) {
                        if(autoCompleteWindow.isVisible()) autoCompleteWindow.applySelection();
                        else getModel().execCommand();
                }
                
                // DocumentListener
                public void
                insertUpdate(DocumentEvent e) { getModel().setCommandLineText(tfInput.getText()); }
                
                public void
                removeUpdate(DocumentEvent e) { getModel().setCommandLineText(tfInput.getText()); }
                
                public void
                changedUpdate(DocumentEvent e) { getModel().setCommandLineText(tfInput.getText()); }
                
                // WindowListener
                public void
                windowActivated(WindowEvent e) {
                        if(autocompleteMode == AutocompleteMode.AUTOCOMPLETE) {
                                tfInput.requestFocusInWindow();
                        }  else tfSearch.requestFocusInWindow();
                }
                
                public void
                windowDeactivated(WindowEvent e) { autoCompleteWindow.setVisible(false); }
                        
                public void
                windowIconified(WindowEvent e) { autoCompleteWindow.setVisible(false); }
                
                // LSConsoleListener
                
                /** Invoked when the text in the command line is changed. */
                public void
                commandLineTextChanged(LSConsoleEvent e) {
                        commandChanged(e.getPreviousCommandLineText());
                }
                
                /** Invoked when the command in the command line has been executed. */
                public void 
                commandExecuted(LSConsoleEvent e) {
                        console.addCommand(getModel().getLastExecutedCommand());
                }
                
                /** Invoked when response is received from LinuxSampler. */
                public void
                responseReceived(LSConsoleEvent e) {
                        console.addCommandResponse(e.getResponse());
                }
        }
        
        private void
        commandChanged(String oldCmdLine) {
                if(!tfInput.getText().equals(getModel().getCommandLineText()))
                        tfInput.setText(getModel().getCommandLineText());
                
                if(LscpUtils.spellCheck(tfInput.getText())) {
                        tfInput.setForeground(console.getTextColor());
                } else {
                        tfInput.setForeground(console.getErrorColor());
                        if(autoCompleteWindow.isVisible()) autoCompleteWindow.setVisible(false);
                }
                
                if(autoCompleteWindow.isVisible()) processAutoComplete(oldCmdLine);
        }
        
        private boolean
        isProcessingSearch() { return processingSearch; }
        
        private void
        setProcessingSearch(boolean b) { processingSearch = b; }
        
        /** Invoked when the tab key is pressed. */
        private void
        processAutoComplete() {
                processAutoComplete(null);
        }
        
        private void
        processAutoComplete(String oldCmdLine) {
                String cmdLine = getModel().getCommandLineText();
                switch(autocompleteMode) {
                case AUTOCOMPLETE:
                        
                        break;
                case HISTORY_SEARCH:
                case CMD_LIST_SEARCH:
                        if(autoCompleteWindow.isVisible()) return;
                }
                
                autocompleteMode = AutocompleteMode.AUTOCOMPLETE;
                
                final String[] cmdS;
                
                try {
                        cmdS = LscpUtils.getCompletionPossibilities(cmdLine);
                } catch(IllegalStateException e) {
                        autoCompleteWindow.setVisible(false);
                        java.awt.Toolkit.getDefaultToolkit().beep();
                        return;
                }
                
                if(cmdS.length == 0) {
                        autoCompleteWindow.setVisible(false);
                        return;
                }
                if(cmdS.length == 1) {
                        if(oldCmdLine != null && oldCmdLine.startsWith(cmdLine)) return;
                        
                        // To prevent IllegalStateException exception.
                        SwingUtilities.invokeLater(new Runnable() {
                                public void
                                run() { tfInput.setText(cmdS[0]); }
                        });
                        
                        return;
                }
                
                autoCompleteWindow.setCommandList(cmdS);
                autoCompleteWindow.setVisible(true);
        }
        
        private void
        startHistorySearch() {
                autocompleteMode = AutocompleteMode.HISTORY_SEARCH;
                lInput.setText("History Search: ");
                
                startSearch();
        }
        
        private void
        startCmdListSearch() {
                autocompleteMode = AutocompleteMode.CMD_LIST_SEARCH;
                lInput.setText("Command List Search: ");
                
                startSearch();
        }
        
        private void
        startSearch() {
                if(!isProcessingSearch())
                        tfSearch.getDocument().addDocumentListener(getSearchHandler());
                
                setProcessingSearch(true);
                
                lInput.setVisible(true);
                tfInput.setVisible(false);
                tfSearch.setText(getModel().getCommandLineText());
                tfSearch.setVisible(true);
                tfSearch.requestFocusInWindow();
                
                revalidate();
                repaint();
                
                processSearch();
        }
        
        private void
        processSearch() {
                String[] cmdS = null;
                
                switch(autocompleteMode) {
                case HISTORY_SEARCH:
                        cmdS = getModel().searchCommandHistory(tfSearch.getText());
                        break;
                case CMD_LIST_SEARCH:
                        cmdS = getModel().searchCommandList(tfSearch.getText());
                        break;
                }
                
                autoCompleteWindow.setCommandList(cmdS);
                autoCompleteWindow.setVisible(cmdS.length > 0);
        }
        
        private void
        stopSearch(boolean cancelSearch) {
                setProcessingSearch(false);
                
                tfSearch.getDocument().removeDocumentListener(getSearchHandler());
                
                lInput.setVisible(false);
                lInput.setText("");
                tfSearch.setVisible(false);
                tfInput.setVisible(true);
                tfInput.requestFocusInWindow();
                
                revalidate();
                repaint();
                
                if(cancelSearch) {
                        autoCompleteWindow.setVisible(false);
                        return;
                }
                
                if(autoCompleteWindow.isVisible()) autoCompleteWindow.applySelection();
                else getModel().setCommandLineText(tfSearch.getText());
        }
        
        
        protected class Actions extends AbstractAction {
                public static final String AUTOCOMPLETE = "autocomplete";
                public static final String HISTORY_SEARCH = "historySearch";
                public static final String CMD_LIST_SEARCH = "cmdListSearch";
                public static final String CANCEL_SEARCH = "cancelSearch";
                public static final String APPLY_SEARCH = "applySearch";
                public static final String MOVE_UP = "moveUp";
                public static final String MOVE_DOWN = "moveDown";
                public static final String MOVE_HOME = "moveHome";
                public static final String MOVE_END = "moveEnd";
                public static final String CANCEL_SELECTION = "cancelSelection";
                public static final String CLEAR_CONSOLE = "clearConsole";
                public static final String CLEAR_SESSION_HISTORY = "clearSessionHistory";
                public static final String CLEAR_COMMAND_HISTORY = "clearCommandHistory";
                public static final String QUIT_SESSION = "quitSession";
                
                public
                Actions(String name) { super(name); }
                
                public void
                actionPerformed(ActionEvent e) {
                        String key = getValue(Action.NAME).toString();
                        
                        if(key == AUTOCOMPLETE) {
                                processAutoComplete();
                        } else if(key == HISTORY_SEARCH) {
                                startHistorySearch();
                        } else if(key == CMD_LIST_SEARCH) {
                                startCmdListSearch();
                        } else if(key == CANCEL_SEARCH) {
                                stopSearch(true);
                        } else if(key == APPLY_SEARCH) {
                                stopSearch(false);
                        } else if(key == MOVE_UP) {
                                if(autoCompleteWindow.isVisible()) {
                                        autoCompleteWindow.selectPreviousItem();
                                        return;
                                }
                                
                                getModel().browseCommandHistoryUp();
                        } else if(key == MOVE_DOWN) {
                                if(autoCompleteWindow.isVisible()) {
                                        autoCompleteWindow.selectNextItem();
                                        return;
                                }
                                
                                getModel().browseCommandHistoryDown();
                        } else if(key == MOVE_HOME) {
                                if(autoCompleteWindow.isVisible()) {
                                        autoCompleteWindow.selectFirstItem();
                                        return;
                                }
                                
                                JTextField tf = tfInput.isVisible() ? tfInput : tfSearch;
                                tf.setCaretPosition(0);
                        } else if(key == MOVE_END) {
                                if(autoCompleteWindow.isVisible()) {
                                        autoCompleteWindow.selectLastItem();
                                        return;
                                }
                                
                                JTextField tf = tfInput.isVisible() ? tfInput : tfSearch;
                                tf.setCaretPosition(tf.getText().length());
                        } else if(key == CANCEL_SELECTION) {
                                autoCompleteWindow.setVisible(false);
                        } else if(key == CLEAR_CONSOLE) {
                                console.setText("");
                        } else if(key == CLEAR_SESSION_HISTORY) {
                                getModel().clearSessionHistory();
                        } else if(key == CLEAR_COMMAND_HISTORY) {
                                getModel().clearCommandHistory();
                        } else if(key == QUIT_SESSION) {
                                quitSession();
                        }
                }
        }
        
        private class AutoCompleteWindow extends JWindow {
                private int MAX_HEIGHT = 140;
                
                private JList list = new JList();
                private JScrollPane scrollPane;
                
                AutoCompleteWindow(Window owner) {
                        super(owner);
                        
                        owner.addComponentListener(getHandler());
                        
                        list.addMouseListener(new MouseAdapter() {
                                public void
                                mouseClicked(MouseEvent e) {
                                        if(list.getSelectedIndex() != -1) applySelection();
                                }
                        });
                        
                        list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
                                                
                        scrollPane = new JScrollPane(list);
                        //sp.setBorder(BorderFactory.createEtchedBorder(EtchedBorder.RAISED));
                        scrollPane.setPreferredSize (
                                new Dimension(scrollPane.getPreferredSize().width, MAX_HEIGHT)
                        );
                        add(scrollPane);
                        
                        int i = JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT;
                                getRootPane().getInputMap(i).put (
                                KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0),
                                "applySelection"
                        );
                
                        getRootPane().getActionMap().put ("applySelection", new AbstractAction() {
                                public void
                                actionPerformed(ActionEvent e) { applySelection(); }
                        });
                
                }
                
                public void
                setCommandList(String[] cmdS) {
                        list.setListData(cmdS);
                        if(cmdS.length > 0) list.setSelectedIndex(0);
                        
                        int h = list.getPreferredSize().height + 6;
                        if(h > MAX_HEIGHT) h = MAX_HEIGHT;
                        if(h == scrollPane.getSize().height) return;
                        
                        scrollPane.setPreferredSize (
                                new Dimension(scrollPane.getPreferredSize().width, h)
                        );
                        
                        scrollPane.setMaximumSize (
                                new Dimension(scrollPane.getPreferredSize().width, h)
                        );
                        
                        setVisible(false);
                        setSize(getSize().width, h);
                        setVisible(true);
                }
                
                public void
                setVisible(boolean b) {
                        if(b) updateLocation0();
                        super.setVisible(b);
                }
                
                public void
                selectNextItem() {
                        int size = list.getModel().getSize();
                        if(size == 0) return;
                        
                        int i = list.getSelectedIndex();
                        if(i == -1 || i == size - 1) list.setSelectedIndex(0);
                        else list.setSelectedIndex(i + 1);
                        
                        list.ensureIndexIsVisible(list.getSelectedIndex());
                }
                
                public void
                selectPreviousItem() {
                        int size = list.getModel().getSize();
                        if(size == 0) return;
                        
                        int i = list.getSelectedIndex();
                        if(i == -1 || i == 0) list.setSelectedIndex(size - 1);
                        else list.setSelectedIndex(i - 1);
                        
                        list.ensureIndexIsVisible(list.getSelectedIndex());
                }
                
                public void
                selectFirstItem() {
                        int size = list.getModel().getSize();
                        if(size == 0) return;
                        
                        list.setSelectedIndex(0);
                        
                        list.ensureIndexIsVisible(list.getSelectedIndex());
                }
                
                public void
                selectLastItem() {
                        int size = list.getModel().getSize();
                        if(size == 0) return;
                        
                        list.setSelectedIndex(size - 1);
                        
                        list.ensureIndexIsVisible(list.getSelectedIndex());
                }
                
                /**
                 * Sets the text color of the autocompletion list.
                 * @param c The text color of autocompletion list.
                 */
                public void
                setTextColor(Color c) {
                        //Object o = list.getCellRenderer();
                        //if(o instanceof JComponent) ((JComponent)o).setForeground(c);
                        list.setForeground(c);
                }
                
                /**
                 * Sets the background color of the autocompletion list.
                 * @param c The background color of the autocompletion list.
                 */
                public void
                setBackgroundColor(Color c) { list.setBackground(c); }
        
                private void
                updateLocation() {
                        if(!isVisible()) return;
                        updateLocation0();
                }
                
                private void
                updateLocation0() {
                        Dimension d;
                        d = new Dimension(inputPane.getSize().width - 6, getSize().height);
                        setPreferredSize(d);
                        
                        Point p = inputPane.getLocationOnScreen();
                        pack();
                        setLocation(p.x + 3, p.y - getSize().height);
                }
                
                private void
                applySelection() {
                        Object o = list.getSelectedValue();
                        if(o != null) tfInput.setText(o.toString());
                        setVisible(false);
                }
                
                private final Handler eventHandler = new Handler();
        
                private Handler
                getHandler() { return eventHandler; }
        
                private class Handler extends ComponentAdapter {
                        
                        // ComponentListener
                        public void
                        componentMoved(ComponentEvent e) { updateLocation(); }
                                
                        public void
                        componentResized(ComponentEvent e) { updateLocation(); }
                }
        }
}

class LSConsoleTextPane extends JTextPane {
        private final String STYLE_ROOT = "root";
        private final String STYLE_REGULAR = "regular";
        private final String STYLE_BOLD = "bold";
        private final String STYLE_NOTIFY_0 = "notificationMessage0";
        private final String STYLE_NOTIFY = "notificationMessage";
        private final String STYLE_WARN_0 = "warningMessage0";
        private final String STYLE_WARN = "warningMessage";
        private final String STYLE_ERROR_0 = "errorMessage0";
        private final String STYLE_ERROR = "errorMessage";
        
        private Color cmdColor;
        private Color notifyColor;
        private Color warnColor;
        private Color errorColor;
        
        LSConsoleTextPane() {
                int i = preferences().getIntProperty(LS_CONSOLE_TEXT_COLOR);
                cmdColor = new Color(i);
                
                i = preferences().getIntProperty(LS_CONSOLE_NOTIFY_COLOR);
                notifyColor = new Color(i);
                
                i = preferences().getIntProperty(LS_CONSOLE_ERROR_COLOR);
                errorColor = new Color(i);
                
                i = preferences().getIntProperty(LS_CONSOLE_WARNING_COLOR);
                warnColor = new Color(i);
                
                Style def;
                def = StyleContext.getDefaultStyleContext().getStyle(StyleContext.DEFAULT_STYLE);
                StyledDocument doc = getStyledDocument();
                Style root = doc.addStyle(STYLE_ROOT, def);
                Style regular = doc.addStyle(STYLE_REGULAR, root);
                
                Style style = doc.addStyle(STYLE_BOLD, regular);
                StyleConstants.setBold(style, true);
                
                style = doc.addStyle(STYLE_NOTIFY_0, regular);
                StyleConstants.setForeground(style, notifyColor);
                doc.addStyle(STYLE_NOTIFY, style);
                
                style = doc.addStyle(STYLE_WARN_0, regular);
                StyleConstants.setForeground(style, warnColor);
                doc.addStyle(STYLE_WARN, style);
                        
                style = doc.addStyle(STYLE_ERROR_0, regular);
                StyleConstants.setForeground(style, errorColor);
                doc.addStyle(STYLE_ERROR, style);
                        
                setEditable(false);
                setBorder(BorderFactory.createEmptyBorder());
                
        }
        
        private JSPrefs
        preferences() { return CC.getViewConfig().preferences(); }
        
        /**
         * Sets the text color.
         * @param c The text color.
         */
        public void
        setTextColor(Color c) {
                cmdColor = c;
                
                StyledDocument doc = getStyledDocument();
                Style root = doc.getStyle(STYLE_ROOT);
                StyleConstants.setForeground(root, cmdColor);
        }
        
        /**
         * Gets the text color of the LS Console.
         * @return The text color of the LS Console.
         */
        public Color
        getTextColor() { return cmdColor; }
        
        /**
         * Sets the notification messages' color.
         * @param c The notification messages' color.
         */
        public void
        setNotifyColor(Color c) {
                notifyColor = c;
                
                Style notify = getStyledDocument().getStyle(STYLE_NOTIFY_0);
                StyleConstants.setForeground(notify, notifyColor);
        }
        
        /**
         * Gets the notification messages' color.
         * @return The notification messages' color.
         */
        public Color
        getNotifyColor() { return notifyColor; }
        
        /**
         * Gets the warning messages' color.
         * @return The warning messages' color.
         */
        public Color
        getWarningColor() { return warnColor; }
        
        /**
         * Sets the warning messages' color.
         * @param c The warning messages' color.
         */
        public void
        setWarningColor(Color c) {
                warnColor = c;
                
                Style warn = getStyledDocument().getStyle(STYLE_WARN_0);
                StyleConstants.setForeground(warn, warnColor);
        }
        
        /**
         * Gets the error messages' color.
         * @return The error messages' color.
         */
        public Color
        getErrorColor() { return errorColor; }
        
        /**
         * Sets the error messages' color.
         * @param c The error messages' color.
         */
        public void
        setErrorColor(Color c) {
                errorColor = c;
                
                Style error = getStyledDocument().getStyle(STYLE_ERROR_0);
                StyleConstants.setForeground(error, errorColor);
        }
        
        /**
         * Adds the specified command to this text pane.
         * @param cmd The command to be added.
         */
        public void
        addCommand(String cmd) {
                StyledDocument doc = getStyledDocument();
                try {
                        String s = "lscp> ";
                        doc.insertString(doc.getLength(), s, doc.getStyle(STYLE_BOLD));
                        s = cmd + "\n";
                        doc.insertString(doc.getLength(), s, doc.getStyle(STYLE_REGULAR));
                } catch(Exception x) {
                        CC.getLogger().log(Level.INFO, HF.getErrorMessage(x), x);
                }
        }
        
        /**
         * Adds the specified command response to this text pane.
         * @param cmd The command response to be added.
         */
        public void
        addCommandResponse(String cmdResponse) {
                StyledDocument doc = getStyledDocument();
                try {
                        String s = cmdResponse + "\n";
                        Style style = doc.getStyle(STYLE_REGULAR);
                        if(s.startsWith("ERR:")) style = doc.getStyle(STYLE_ERROR);
                        else if(s.startsWith("WRN:")) style = doc.getStyle(STYLE_WARN);
                        else if(s.startsWith("NOTIFY:")) style = doc.getStyle(STYLE_NOTIFY);
                        doc.insertString(doc.getLength(), s, style);
                } catch(Exception x) {
                        CC.getLogger().log(Level.INFO, HF.getErrorMessage(x), x);
                }
        }
}