/*

 * Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/*

 * This source code is provided to illustrate the usage of a given feature

 * or technique and has been deliberately simplified. Additional steps

 * required for a production-quality application, such as security checks,

 * input validation and proper error handling, might not be present in

 * this sample code.

 */

package com.sun.tools.example.debug.gui;

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class TypeScript extends JPanel {

    private static final long serialVersionUID = -983704841363534885L;

    private JTextArea history;

    private JTextField entry;

    private JLabel promptLabel;

    private JScrollBar historyVScrollBar;

    private JScrollBar historyHScrollBar;

    private boolean echoInput = false;

    private static String newline = System.getProperty("line.separator");

    public TypeScript(String prompt) {

        this(prompt, true);

    }

    public TypeScript(String prompt, boolean echoInput) {

        this.echoInput = echoInput;

        setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));

        //setBorder(new EmptyBorder(5, 5, 5, 5));

        history = new JTextArea(0, 0);

        history.setEditable(false);

        JScrollPane scroller = new JScrollPane(history);

        historyVScrollBar = scroller.getVerticalScrollBar();

        historyHScrollBar = scroller.getHorizontalScrollBar();

        add(scroller);

        JPanel cmdLine = new JPanel();

        cmdLine.setLayout(new BoxLayout(cmdLine, BoxLayout.X_AXIS));

        //cmdLine.setBorder(new EmptyBorder(5, 5, 0, 0));

        promptLabel = new JLabel(prompt + " ");

        cmdLine.add(promptLabel);

        entry = new JTextField();

//### Swing bug workaround.

entry.setMaximumSize(new Dimension(1000, 20));

        cmdLine.add(entry);

        add(cmdLine);

    }

    /******

    public void setFont(Font f) {

        entry.setFont(f);

        history.setFont(f);

    }

    ******/

    public void setPrompt(String prompt) {

        promptLabel.setText(prompt + " ");

    }

    public void append(String text) {

        history.append(text);

        historyVScrollBar.setValue(historyVScrollBar.getMaximum());

        historyHScrollBar.setValue(historyHScrollBar.getMinimum());

    }

    public void newline() {

        history.append(newline);

        historyVScrollBar.setValue(historyVScrollBar.getMaximum());

        historyHScrollBar.setValue(historyHScrollBar.getMinimum());

    }

    public void flush() {}

    public void addActionListener(ActionListener a) {

        entry.addActionListener(a);

    }

    public void removeActionListener(ActionListener a) {

        entry.removeActionListener(a);

    }

    public String readln() {

        String text = entry.getText();

        entry.setText("");

        if (echoInput) {

            history.append(">>>");

            history.append(text);

            history.append(newline);

            historyVScrollBar.setValue(historyVScrollBar.getMaximum());

            historyHScrollBar.setValue(historyHScrollBar.getMinimum());

        }

        return text;

    }

}