Package org.geoforge.guillc.panel

Source Code of org.geoforge.guillc.panel.GfrPnlPosStmAbs

/*
*  Copyright (C) 2011-2014 GeoForge Project
*
*  This program 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 3 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 Lesser General Public License for more details.
*
*  You should have received a copy of the GNU Lesser General Public License
*  along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

package org.geoforge.guillc.panel;

import org.geoforge.guillc.handler.IGfrHandlerValidityListener;
import java.awt.geom.Point2D;
import org.geoforge.guillc.event.GfrEvtValidityChanged;

/**
*
* @author Amadeus.Sowerby
*
* email: Amadeus.Sowerby_AT_gmail.com
* ... please remove "_AT_" from the above string to get the right email address
*/
/*
* "Pos" means "Position"
* "Stm" means "System"
*/
public abstract class GfrPnlPosStmAbs extends GfrPnlSelEdt
{

  
   //--
   //--beg protected methods
   protected GfrPnlPosStmAbs()
   {
      super();
   }
  
   protected void fireValidityUpdate(
           boolean blnValidity,
           String strMessage)
   {
      // Guaranteed to return a non-null array
      Object[] listeners = listenerList.getListenerList();
      GfrEvtValidityChanged e = null;
      // Process the listeners last to first, notifying
      // those that are interested in this event
      for (int i = listeners.length - 2; i >= 0; i -= 2)
      {
         if (listeners[i] == IGfrHandlerValidityListener.class)
         {
            if (e == null)
            {
               e = new GfrEvtValidityChanged(blnValidity, strMessage);
               ((IGfrHandlerValidityListener) listeners[i + 1]).validityChanged(e);
            }
         }
      }
   }
   //--end protected methods
   //--
  
   //--
   //--beg public
   abstract public Point2D.Double getGeometry();
  
   public void addValidityListener(IGfrHandlerValidityListener vlr)
   {
      super.listenerList.add(IGfrHandlerValidityListener.class, vlr);

      super.addPanelListener(this);
   }

   public void removeValidityListener(IGfrHandlerValidityListener vlr)
   {
      listenerList.remove(IGfrHandlerValidityListener.class, vlr);
   }

   public IGfrHandlerValidityListener[] getValidityListeners()
   {
      return (IGfrHandlerValidityListener[]) listenerList.getListeners(IGfrHandlerValidityListener.class);
   }
   //--end public methods
   //--
  
}
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