package jalview.structure;

import jalview.commands.CommandI;

/**
 * Defines a listener for commands performed on another alignment. This is to
 * support linked editing of two alternative representations of an alignment (in
 * particular, cDNA and protein).
 * 
 * @author gmcarstairs
 *
 */
public interface CommandListener
{
  /**
   * The listener may attempt to perform the specified command; the region acted
   * on is determined by a callback to the StructureSelectionManager (which
   * holds mappings between alignments).
   * 
   * @param command
   * @param undo
   * @param ssm
   * @param source
   *          the originator of the command
   */
  public void mirrorCommand(CommandI command, boolean undo,
          StructureSelectionManager ssm, VamsasSource source);

  /**
   * Temporary workaround to make check for source == listener work.
   * 
   * @return
   */
  public VamsasSource getVamsasSource();
}