content: package tim.prune.gui;
  
  import javax.swing.DefaultListModel;
  import javax.swing.JList;
  import javax.swing.ListSelectionModel;
  
  import tim.prune.I18nManager;
  
  
  /**
   * Listbox class which also contains its own string model.
   * Also has the ability to limit its size and show a single
   * text instead of a huge list
   */
  public class CombinedListAndModel extends JList<String>
  {
  	private DefaultListModel<String> _model = null;
  	private final int _key;
  	private int _maxNumEntries = 0;
  	private boolean _tooManyEntries = false;
  	private boolean _unlimited = false;
  
  
  	/**
  	 * Constructor
  	 */
  	public CombinedListAndModel(int inKey)
  	{
  		setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
  		_model = new DefaultListModel<String>();
  		setModel(_model);
  		_key = inKey;
  	}
  
  	/**
  	 * @param inMaxNum maximum number of entries to allow
  	 */
  	public void setMaxNumEntries(int inMaxNum)
  	{
  		_maxNumEntries = inMaxNum;
  	}
  
  	/**
  	 * @param inUnlimited true if list is temporarily unlimited
  	 */
  	public void setUnlimited(boolean inUnlimited)
  	{
  		_unlimited = inUnlimited;
  	}
  
  	/**
  	 * @return key
  	 */
  	public int getKey()
  	{
  		return _key;
  	}
  
  	/**
  	 * @param inItem String to add to the list
  	 */
  	public void addItem(String inItem)
  	{
  		if (!_tooManyEntries)
  		{
  			_model.addElement(inItem);
  			if (_maxNumEntries > 0 && !_unlimited
  				&& _model.getSize() > _maxNumEntries)
  			{
  				_tooManyEntries = true;
  				_model.clear();
  				_model.addElement(I18nManager.getText("dialog.settimezone.list.toomany"));
  			}
  		}
  	}
  
  	/**
  	 * @return the selected String, or null
  	 */
  	public String getSelectedItem()
  	{
  		final int selectedIndex = getSelectedIndex();
  		if (_tooManyEntries || selectedIndex < 0)
  		{
  			return null;
  		}
  		return _model.getElementAt(selectedIndex);
  	}
  
  	/**
  	 * Clear the list
  	 */
  	public void clear()
  	{
  		_model.clear();
  		_tooManyEntries = false;
  		_unlimited = false;
  	}
  
  	/**
  	 * @param inItem item to select
  	 */
  	public void selectItem(String inItem)
  	{
  		if (!_tooManyEntries && inItem != null)
  		{
  			this.setSelectedValue(inItem, true);
  		}
  	}
  }
  