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/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package proguard.gui;
import javax.swing.*;
import java.io.*;
/**
* This <code>PrintStream</code> appends its output to a given text area.
*
* @author Eric Lafortune
*/
final class TextAreaOutputStream extends FilterOutputStream implements Runnable
{
private final JTextArea textArea;
public TextAreaOutputStream(JTextArea textArea)
{
super(new ByteArrayOutputStream());
this.textArea = textArea;
}
// Implementation for FilterOutputStream.
public void flush() throws IOException
{
super.flush();
try
{
// Append the accumulated buffer contents to the text area.
SwingUtil.invokeAndWait(this);
}
catch (Exception e)
{
// Nothing.
}
}
// Implementation for Runnable.
public void run()
{
ByteArrayOutputStream out = (ByteArrayOutputStream)super.out;
// Has any new text been written?
String text = out.toString();
if (text.length() > 0)
{
// Append the accumulated text to the text area.
textArea.append(text);
// Clear the buffer.
out.reset();
}
}
}
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