/*
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* ProGuard -- shrinking, optimization, obfuscation, and preverification
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* of Java bytecode.
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*
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* Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package proguard.gui;
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import javax.swing.*;
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import java.io.*;
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/**
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* This <code>PrintStream</code> appends its output to a given text area.
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*
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* @author Eric Lafortune
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*/
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final class TextAreaOutputStream extends FilterOutputStream implements Runnable
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{
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private final JTextArea textArea;
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public TextAreaOutputStream(JTextArea textArea)
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{
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super(new ByteArrayOutputStream());
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this.textArea = textArea;
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}
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// Implementation for FilterOutputStream.
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public void flush() throws IOException
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{
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super.flush();
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try
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{
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// Append the accumulated buffer contents to the text area.
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SwingUtil.invokeAndWait(this);
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}
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catch (Exception e)
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{
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// Nothing.
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}
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}
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// Implementation for Runnable.
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public void run()
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{
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ByteArrayOutputStream out = (ByteArrayOutputStream)super.out;
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// Has any new text been written?
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String text = out.toString();
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if (text.length() > 0)
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{
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// Append the accumulated text to the text area.
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textArea.append(text);
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// Clear the buffer.
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out.reset();
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}
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}
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}
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