/*
 * #%L
 * Bio-Formats Plugins for ImageJ: a collection of ImageJ plugins including the
 * Bio-Formats Importer, Bio-Formats Exporter, Bio-Formats Macro Extensions,
 * Data Browser and Stack Slicer.
 * %%
 * Copyright (C) 2006 - 2015 Open Microscopy Environment:
 *   - Board of Regents of the University of Wisconsin-Madison
 *   - Glencoe Software, Inc.
 *   - University of Dundee
 * %%
 * 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, see
 * <http://www.gnu.org/licenses/gpl-2.0.html>.
 * #L%
 */

package loci.plugins.config;

import java.io.Writer;

import javax.swing.JTextArea;

/**
 * Writer implementation that writes to a JTextArea document.
 *
 * @author Curtis Rueden ctrueden at wisc.edu
 */
public class TextAreaWriter extends Writer {

  // -- Fields --

  /** Text area component to which output should be written. */
  private JTextArea textArea;

  // -- Constructor --

  /** Constructs a new TextAreaWriter around the given text area component. */
  public TextAreaWriter(JTextArea textArea) {
    this.textArea = textArea;
  }

  // -- Writer API methods --

  /** Closing a TextAreaWriter does nothing. */
  @Override
  public void close() { }

  /** Flushing a TextAreaWriter does nothing .*/
  @Override
  public void flush() { }

  /** Writes the given characters to the associated text area component. */
  @Override
  public void write(char[] cbuf, int off, int len) {
    textArea.append(new String(cbuf, off, len));
    textArea.setCaretPosition(textArea.getDocument().getLength());
  }

}