// Copyright 2005, FreeHEP.
   package hep.wired.heprep.interaction;
   
   import java.awt.*;
   import java.awt.event.*;
   import java.awt.geom.*;
   import javax.swing.*;
   
   import org.freehep.application.Application;
  
  import hep.wired.services.GraphicsPanel;
  import hep.wired.services.RecordPlot;
  import hep.wired.services.InteractionHandler;
  import hep.wired.image.WiredBaseImage;
  
  import hep.wired.heprep.graphicspanel.ControlPanel;
  
  /***
   *
   * @author Mark Donszelmann
   * @version $Id: Variables.java 2134 2005-07-29 17:06:53Z duns $
   */
  public class Variables extends RoutingInteractionHandler {
  
      private static Variables instance;
      private VariablePanel panel;
  
      private Variables() {
          super("Variables");
          panel = new VariablePanel();
          
          // FIXME, NPE when this is not called.
          panel.setInteractionHandler(null);                
      }
      
      public static Variables getInstance() {
          if (instance == null) {
              instance = new Variables();
          }
          return instance;
      }
      
      public Icon getIcon(int size) {
          return WiredBaseImage.getIcon("Variable%w", size);
      }    
  
      public String getDescription() {
          return "Changing of variables.";
      }
  
      public ControlPanel getPanel() {
          return panel;
      }
      
      public String toString() {
          return "Variables";
      }
  }