code: //==============================================================================
  //	
  //	Copyright (c) 2002-
  //	Authors:
  //	* Andrew Hinton <ug60axh@cs.bham.ac.uk> (University of Birmingham)
  //	* Dave Parker <david.parker@comlab.ox.ac.uk> (University of Oxford, formerly University of Birmingham)
  //	
  //------------------------------------------------------------------------------
  //	
  //	This file is part of PRISM.
  //	
  //	PRISM 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.
  //	
  //	PRISM 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 PRISM; if not, write to the Free Software Foundation,
  //	Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  //	
  //==============================================================================
  
  package userinterface;
  
  import javax.swing.*;
  import prism.*;
  
  public abstract class OptionsPanel extends JPanel
  {
      
      private String tab;
      
      public OptionsPanel(String tab)
      {
          this.tab = tab;
      }
      
      //Applies the state of the options panel to the data stored in PrismSettings
      public abstract void apply() throws PrismException;
      
      //Sets up the gui to reflect the data stored in 
      public abstract void synchronizeGUI();
      
      //The following methods are now irrelevent:
      //      All loading/saving is now done in PrismSettings.java
      //      Default settings are handled in PrismSettings.java
      //      and validity is now handled in the apply() method
      
      //public abstract void defaultGUI();
      
      //public abstract boolean valid() throws GUIException;
      
      //public abstract Element saveXMLElement(Document doc) throws DOMException;
      
      //public abstract void loadXMLElement(Document doc, Element element);
      
      //public abstract void saveProperties(Properties properties);
      
      //public abstract void loadProperties(Properties properties);
      
      public String getTabText()
      {
          return tab;
      }
      
  }
  