content: /* ========================================================================
   * JCommon : a free general purpose class library for the Java(tm) platform
   * ========================================================================
   *
   * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
   * 
   * Project Info:  http://www.jfree.org/jcommon/index.html
   *
   * This library is free software; you can redistribute it and/or modify it 
   * under the terms of the GNU Lesser General Public License as published by 
   * the Free Software Foundation; either version 2.1 of the License, or 
   * (at your option) any later version.
   *
   * This library 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 Lesser General Public 
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
   * USA.  
   *
   * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
   * in the United States and other countries.]
   * 
   * ------------
   * Spinner.java
   * ------------
   * (C) Copyright 2002-2004, by Object Refinery Limited.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * $Id $
   *
   * Changes
   * -------
   * 14-Oct-2002 : Version 1 (DG);
   *
   */
  
  package org.jfree.ui;
  
  import java.awt.BorderLayout;
  import java.awt.GridLayout;
  import java.awt.event.MouseEvent;
  import java.awt.event.MouseListener;
  import javax.swing.JPanel;
  import javax.swing.JTextField;
  import javax.swing.SwingConstants;
  
  /**
   * A very basic spinner component, used for demo purposes only.
   *
   * @author David Gilbert
   */
  public class Spinner extends JPanel implements MouseListener {
  
      /** The current value. */
      private int value;
  
      /** The text field displaying the value. */
      private JTextField textField;
  
      /** The arrow button panel. */
      private JPanel buttonPanel;
  
      /** The up button. */
      private ArrowPanel upButton;
  
      /** The down button. */
      private ArrowPanel downButton;
  
      /**
       * Creates a new spinner.
       *
       * @param value  the initial value.
       */
      public Spinner(final int value) {
          super(new BorderLayout());
          this.value = value;
          this.textField = new JTextField(Integer.toString(this.value));
          this.textField.setHorizontalAlignment(SwingConstants.RIGHT);
          add(this.textField);
          this.buttonPanel = new JPanel(new GridLayout(2, 1, 0, 1));
          this.upButton = new ArrowPanel(ArrowPanel.UP);
          this.upButton.addMouseListener(this);
          this.downButton = new ArrowPanel(ArrowPanel.DOWN);
          this.downButton.addMouseListener(this);
          this.buttonPanel.add(this.upButton);
          this.buttonPanel.add(this.downButton);
          add(this.buttonPanel, BorderLayout.EAST);
      }
  
      /**
       * Returns the current value.
       *
       * @return the current value.
       */
      public int getValue() {
          return this.value;
      }
  
      /**
       * Receives notification of mouse clicks.
       *
       * @param e  the mouse event.
       */
      public void mouseClicked(final MouseEvent e) {
          if (e.getSource() == this.upButton) {
              this.value++;
              this.textField.setText(Integer.toString(this.value));
              firePropertyChange("value", this.value - 1, this.value);
          }
          else if (e.getSource() == this.downButton) {
              this.value--;
              this.textField.setText(Integer.toString(this.value));
              firePropertyChange("value", this.value + 1, this.value);
          }
      }
  
      /**
       * Receives notification of mouse events.
       *
       * @param e  the mouse event.
       */
      public void mouseEntered(final MouseEvent e) {
          // ignored
      }
  
      /**
       * Receives notification of mouse events.
       *
       * @param e  the mouse event.
       */
      public void mouseExited(final MouseEvent e) {
          // ignored
      }
  
      /**
       * Receives notification of mouse events.
       *
       * @param e  the mouse event.
       */
      public void mousePressed(final MouseEvent e) {
          // ignored
      }
  
      /**
       * Receives notification of mouse events.
       *
       * @param e  the mouse event.
       */
      public void mouseReleased(final MouseEvent e) {
          // ignored
      }
  
  }
  