/* 
 * Copyright 2003,2004,2005 Colin Crist
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */

package hermes.swing;

import java.util.HashSet;
import java.util.Set;

import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

/**
 * @author colincrist@hermesjms.com
 * @version $Id: ProxyListSelectionModel.java,v 1.1 2006/05/26 10:08:21 colincrist Exp $
 */

public class ProxyListSelectionModel implements ListSelectionModel
{
   private Set<ListSelectionModel> models = new HashSet<ListSelectionModel> () ; 
   private ListSelectionModel selected ;
   private Set<ListSelectionListener> listeners = new HashSet<ListSelectionListener> () ;
 
   public void remove(ListSelectionModel model)
   {
      models.remove(model) ; 
   }
   
   public void forward(ListSelectionEvent e)
   {
      for (ListSelectionListener l : listeners)
      {
         l.valueChanged(e) ;
      }
   }
   
   public void add(final ListSelectionModel model)
   {
      models.add(model) ;
      
      if (models.size() == 1)
      {
         selected = model ;
      }
      
      for (ListSelectionListener l : listeners)
      {
         model.addListSelectionListener(l) ;
      }
      
      model.addListSelectionListener(new ListSelectionListener()
      {
         public void valueChanged(ListSelectionEvent e)
         {
            selected = model ;
         }      
      }) ;
   }
   
   public void addListSelectionListener(ListSelectionListener x)
   {
      listeners.add(x) ;
      
      for (ListSelectionModel m : models)
      {
         m.addListSelectionListener(x) ;
      }

   }

   public void removeListSelectionListener(ListSelectionListener x)
   {
      listeners.remove(x) ;
      
      for (ListSelectionModel m : models)
      {
         m.removeListSelectionListener(x) ;
      }
   }

   public void addSelectionInterval(int index0, int index1)
   {
      selected.addSelectionInterval(index0, index1);
   }

   public void clearSelection()
   {
      selected.clearSelection();
   }

   public int getAnchorSelectionIndex()
   {
      return selected.getAnchorSelectionIndex();
   }

   public int getLeadSelectionIndex()
   {
      return selected.getLeadSelectionIndex();
   }

   public int getMaxSelectionIndex()
   {
      return selected.getMaxSelectionIndex();
   }

   public int getMinSelectionIndex()
   {
      return selected.getMinSelectionIndex();
   }

   public int getSelectionMode()
   {
      return selected.getSelectionMode();
   }

   public boolean getValueIsAdjusting()
   {
      return selected.getValueIsAdjusting();
   }

   public void insertIndexInterval(int index, int length, boolean before)
   {
      selected.insertIndexInterval(index, length, before);
   }

   public boolean isSelectedIndex(int index)
   {
      return selected.isSelectedIndex(index);
   }

   public boolean isSelectionEmpty()
   {
      return selected.isSelectionEmpty();
   }

   public void removeIndexInterval(int index0, int index1)
   {
      selected.removeIndexInterval(index0, index1);
   }

   public void removeSelectionInterval(int index0, int index1)
   {
      selected.removeSelectionInterval(index0, index1);
   }

   public void setAnchorSelectionIndex(int index)
   {
      selected.setAnchorSelectionIndex(index);
   }

   public void setLeadSelectionIndex(int index)
   {
      selected.setLeadSelectionIndex(index);
   }

   public void setSelectionInterval(int index0, int index1)
   {
      selected.setSelectionInterval(index0, index1);
   }

   public void setSelectionMode(int selectionMode)
   {
      selected.setSelectionMode(selectionMode);
   }

   public void setValueIsAdjusting(boolean valueIsAdjusting)
   {
      selected.setValueIsAdjusting(valueIsAdjusting);
   }

}