// Copyright (c) 1996-98 The Regents of the University of California. All
// Rights Reserved. Permission to use, copy, modify, and distribute this
// software and its documentation for educational, research and non-profit
// purposes, without fee, and without a written agreement is hereby granted,
// provided that the above copyright notice and this paragraph appear in all
// copies. Permission to incorporate this software into commercial products may
// be obtained by contacting the University of California. David F. Redmiles
// Department of Information and Computer Science (ICS) University of
// California Irvine, California 92697-3425 Phone: 714-824-3823. This software
// program and documentation are copyrighted by The Regents of the University
// of California. The software program and documentation are supplied "as is",
// without any accompanying services from The Regents. The Regents do not
// warrant that the operation of the program will be uninterrupted or
// error-free. The end-user understands that the program was developed for
// research purposes and is advised not to rely exclusively on the program for
// any reason. IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY
// PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
// INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
// DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY
// DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
// SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
// CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
// ENHANCEMENTS, OR MODIFICATIONS.

// File: ActionSelectInvert.java
// Classes: ActionSelectInvert
// Original Author: jrobbins@ics.uci.edu
// $Id: ActionSelectInvert.java,v 1.2 1997/06/10 23:42:22 jrobbins Exp $

package uci.graphedit;

import java.awt.*;
import java.util.*;

/** Action to select all the DiagramElements in the editor's current
 *  view that were not previously selected.
 *  <A HREF="../features.html#select_inversion">
 *  <TT>FEATURE: select_inversion</TT></A>
 *
 * @see ModeSelect#bindKeys */

public class ActionSelectInvert extends Action {

  public ActionSelectInvert() { }

  public String name() { return "Select All DiagramElements in Layer"; }

  public void doIt(java.awt.Event e) {
    Editor ce = Globals.curEditor();
    Vector selected = ce.selectedDEs();
    Vector diagramContents = ce.view().contents();
    Vector inverse = new Vector(diagramContents.size());
    Enumeration contEnum = diagramContents.elements();
    while (contEnum.hasMoreElements()) {
      Object dc = contEnum.nextElement();
      if (!selected.contains(dc)) inverse.addElement(dc);
    }
    ce.selectItems(inverse);
  }

  public void undoIt() {
    System.out.println("Undo does not make sense for ActionSelectInvert");
  }

} /* end class ActionSelectInvert */