//
// VariableComboRenderer.java
//

/*
OME Metadata Editor application for exploration and editing of OME-XML and
OME-TIFF metadata. Copyright (C) 2006-@year@ Christopher Peterson.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Library 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 Library General Public License for more details.

You should have received a copy of the GNU Library 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 loci.ome.editor;

import java.awt.Component;

import javax.swing.JComboBox;
import javax.swing.JTable;
import javax.swing.border.EmptyBorder;
import javax.swing.table.TableCellRenderer;

/**
 * A class to handle how to display a combobox cell even
 * when the cell is not being edited.
 *
 * <dl><dt><b>Source code:</b></dt>
 * <dd><a href="http://trac.openmicroscopy.org.uk/ome/browser/bioformats.git/components/legacy/ome-editor/src/loci/ome/editor/VariableComboRenderer.java">Trac</a>,
 * <a href="http://git.openmicroscopy.org/?p=bioformats.git;a=blob;f=components/legacy/ome-editor/src/loci/ome/editor/VariableComboRenderer.java;hb=HEAD">Gitweb</a></dd></dl>
 *
 * @author Christopher Peterson crpeterson2 at wisc.edu
 */
public class VariableComboRenderer extends JComboBox
  implements TableCellRenderer
{
  /** Construct a new VariableComboRenderer.*/
  public VariableComboRenderer() { super(); }

  /**
  * Returns the component that should be displayed by the table in
  * a reference cell when it is not being edited.
  */
  public Component getTableCellRendererComponent(JTable table, Object value,
    boolean isSelected, boolean hasFocus, int row, int column)
  {
    removeAllItems();
    addItem(value);
    setBorder((EmptyBorder) null);
    return this;
  }

  //overidden for performance reasons... see jdk 1.4 doc
  //for details as to why I did this
//  public void validate() {}
//  public void revalidate() {}
  /**
  * Made no-op for performance reasons... see jdk 1.4 API
  * Specifications on DefaultCellRenderer for details.
  */
  public void repaint(long tm, int x, int y,
    int width, int height) {}
  /**
  * Made no-op for performance reasons... see jdk 1.4 API
  * Specifications on DefaultCellRenderer for details.
  */
  public void firePropertyChange(String propertyName,
    boolean oldValue, boolean newValue) {}
  /**
  * Made no-op for performance reasons... see jdk 1.4 API
  * Specifications on DefaultCellRenderer for details.
  */
  protected void firePropertyChange(String propertyName,
    Object oldValue, Object newValue) {}
}