Skip to content
Snippets Groups Projects
SequenceComboBox.java 3.11 KiB
Newer Older
  • Learn to ignore specific revisions
  • /* SequenceComboBox
     *
     * created: 2012
     *
     * This file is part of Artemis
     *
     * Copyright(C) 2012  Genome Research Limited
     *
     * This program 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.
     *
     * 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 General Public License for more details.
     *
     * You should have received a copy of the GNU General Public License
     * along with this program; if not, write to the Free Software
     * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
     *
     */
    package uk.ac.sanger.artemis.components;
    
    import java.awt.event.ItemEvent;
    import java.awt.event.ItemListener;
    import java.util.ArrayList;
    
    import java.util.Arrays;
    
    import java.util.Vector;
    
    import javax.swing.DefaultComboBoxModel;
    import javax.swing.JComboBox;
    import javax.swing.text.JTextComponent;
    
    import uk.ac.sanger.artemis.components.genebuilder.AutoCompleteComboDocument;
    
    public abstract class SequenceComboBox extends JComboBox implements IndexReferenceListener
    {
      private static final long serialVersionUID = 1L;
      private ArrayList<IndexReferenceListener> indexReferenceListeners = new ArrayList<IndexReferenceListener>();
    
      public SequenceComboBox(Vector<String> sequenceNames)
      {
        super(sequenceNames);
        JTextComponent editor = (JTextComponent) getEditor().getEditorComponent();
        editor.setDocument(new AutoCompleteComboDocument(this));
        setEditable(true);
        setMaximumRowCount(20);
        
        addItemListener(new ItemListener()
        {
          public void itemStateChanged(ItemEvent e)
          {
            fireAction(new IndexReferenceEvent(SequenceComboBox.this));
          }
        });
      }
      
    
      public SequenceComboBox(String sequenceNames[])
      {
        this(new Vector<String>(Arrays.asList(sequenceNames)));
      }
      
    
      public void indexReferenceChanged(IndexReferenceEvent event)
      {
        final String contig = 
            ((String) ((SequenceComboBox)event.getSource()).getSelectedItem()).trim();
        if(!contains(contig))
          return;
        if(!getSelectedItem().equals(contig))
          setSelectedItem(contig);
    
        update(event);
      }
      
      private void fireAction(IndexReferenceEvent event)
      {
        update(event);
        for(IndexReferenceListener l: indexReferenceListeners)
          l.indexReferenceChanged(event);
      }
      
      private boolean contains(Object o) 
      {
        final DefaultComboBoxModel model = (DefaultComboBoxModel) getModel();
        for(int i = 0; i < model.getSize(); i++) 
        {
          Object obj = model.getElementAt(i);
          if(obj.equals(o))
            return true;
        }
        return false;
      }
      
      abstract public void update(IndexReferenceEvent event);
      
      /**
       *  Adds the specified index reference listener to receive
       *  change events from this object.
       *  @param l the event change listener.
       **/
    
      public void addIndexReferenceListener(IndexReferenceListener l)
    
      {
        indexReferenceListeners.add(l);
      }
    }