content: package com.japisoft.editix.ui.xslt;
  
  import java.awt.BorderLayout;
  import java.io.IOException;
  import java.io.OutputStream;
  import java.io.PrintStream;
  
  import javax.swing.JPanel;
  import javax.swing.JScrollPane;
  import javax.swing.JTextArea;
  import javax.swing.text.BadLocationException;
  
  /**
  This program is available under two licenses : 
  
  1. For non commercial usage : 
  
  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 3 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, see <http://www.gnu.org/licenses/>.
  
  2. For commercial usage :
  
  You need to get a commercial license for source usage at : 
  
  http://www.editix.com/buy.html
  
  Copyright (c) 2018 Alexandre Brillant - JAPISOFT SARL - http://www.japisoft.com
  
  @author Alexandre Brillant - abrillant@japisoft.com
  @author JAPISOFT SARL - http://www.japisoft.com
  
  */
  public class XSLTConsolePanel extends JPanel {
  
  	private JTextArea ta = null;
  	
  	public XSLTConsolePanel() {
  		setLayout( new BorderLayout() );
  		add( new JScrollPane( ta = new JTextArea() ) );
  		ta.setEditable( false );
  	}
  
  	public void setMessage( String msg ) {
  		ta.setText( msg );
  	}
  	
  	private PrintStream currentStream = null;
  	private PrintStream currentStreamErr = null;	
  	
  	public void setEnabledConsole( boolean enabled ) {
  		if ( enabled ) {
  			ta.setText( "" );
  			currentStream = System.out;
  			currentStreamErr = System.err;
  			PrintStream po = new PrintStream( new CustomOut() );
  			System.setOut( po );
  			System.setErr( po );
  		} else {
  			if ( currentStream != null ) {
  				System.out.flush();
  				System.err.flush();
  				System.setOut( currentStream );
  				System.setErr( currentStreamErr );
  			}
  		}		
  	}
  
  	class CustomOut extends OutputStream {
  		
  		@Override
  		public void write(int b) throws IOException {
  			int length = ta.getDocument().getLength();
  			try {
  				ta.getDocument().insertString( length, Character.toString( (char)b ), null );
  			} catch( BadLocationException bex ) {
  			}
  		}
  
  	}
  	
  }
  
  