statusarea.java

java kerberos implementation

/*
  Simple Implementation of Kerberos protocol v5
  Copyright (C) 2003 Thia Yeo Ching ([e-mail])

  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 SimpleKerberos.guitool;

import javax.swing.*;


public class StatusArea extends JScrollPane
{
  private static final String EMPTY = "";
  private static final String NEWLINE = "\n";
  private JTextArea statusArea;

  public void setWithLineNumber(boolean withLineNumber_)
  {
    this.withLineNumber_ = withLineNumber_;
  }

  private boolean withLineNumber_ = true;
  private long lineNumber_ = 0;

  private long nextLineNumber()
  {
    ++lineNumber_;
    return lineNumber_;
  }

  public StatusArea()
  {
    super();
    statusArea = new JTextArea();
    statusArea.setEditable(false);
    statusArea.setAutoscrolls(true);
    this.setViewportView(statusArea);
  }

  public void clearStatus()
  {
    statusArea.setText(EMPTY);
  }

  public void appendStatus(String msg)
  {
    if (withLineNumber_)
    {
      statusArea.append(Long.toString(nextLineNumber()) + ": ");
    }
    statusArea.append(msg + NEWLINE);
  }

}