FlatTextArea.java

/**
 *
    QuickUML; A simple UML tool that demonstrates one use of the 
    Java Diagram Package 

    Copyright (C) 2001  Eric Crahen <crahen@cse.buffalo.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 uml.ui;

import java.awt.Color;
import java.awt.Insets;
import java.awt.Point;

import javax.swing.JTextArea;

/**
 * @class FlatTextArea
 *
 * @date 08-20-2001
 * @author Eric Crahen
 * @version 1.0 
 * 
 * Creates a flat-style JTextArea . If the snapback flag is set, the text will be scrolled
 * back to the origin after the text is modified.
 */
public class FlatTextArea extends FlatScrollPane {

  private static final Point origin = new Point(0, 0);

  private JTextArea textArea = new JTextArea();
  private boolean snapBack;

  /**
   */
  public FlatTextArea(boolean snapBack) {

    //super(VERTICAL_SCROLLBAR_NEVER, HORIZONTAL_SCROLLBAR_NEVER);
    
    textArea.setBorder(null);

    setOpaque(false);
    setSnappedBack(snapBack);
    setViewportView(textArea);

  }

  /**
   */
  public void setForeground(Color c) {
    super.setForeground(c);
    if(textArea != null)
      textArea.setForeground(c);
  }

  /**
   */
  public void setBackground(Color c) {
    super.setBackground(c);
    if(textArea != null)
      textArea.setBackground(c);
  }


  /**
   */
  public String getText() {
    return textArea.getText();
  }

  /**
   */
  public void setText(String text) {

    textArea.setText(text);

    if(snapBack) {
      getViewport().setViewPosition(origin);
      textArea.moveCaretPosition(0);
    }

  }

  /**
   */
  public boolean isSnappedBack() {
    return snapBack;
  }

  /**
   */
  public void setSnappedBack(boolean snapBack) {
    this.snapBack = snapBack;
  }

  /**
   */
  public void setMargin(Insets margin) {
    textArea.setMargin(margin);
  }

  /**
   */
  public Insets getMargin() {
    return textArea.getMargin();
  }

}