// 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: SelectionBox.java
// Classes: SelectionBox
// Original Author: jrobbins@ics.uci.edu
// $Id: SelectionBox.java,v 1.10 1997/06/10 23:43:30 jrobbins Exp $

package uci.graphedit;

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

/** Selection object for DiagramElement's that do not have handles. A
 *  colorded rectangular frame is drawn just outside the bounding box
 *  of the DiagramElement. The box has things that look like handles on
 *  its four corners so that it looks more like a selection and less
 *  like the highlighting used by Argo. However, these fake handles
 *  cannot be dragged to resize the DiagramElement.
 *  <A HREF="../features.html#selections_box">
 *  <TT>FEATURE: selections_box</TT></A>
 *
 * @see FigText
 * @see Perspective */

public class SelectionBox extends SelectionSingle {

  /** The margin between the contents bbox and the frame */
  public static final int BORDER_WIDTH = 4;

  /**  Height and width in pixels of (square) rectangles used for handle */
  public static final int HAND_SIZE = 6;

  /** Construct a new SelectionBox around the given DiagramElement */
  public SelectionBox(DiagramElement de) { super(de); }

  /** Draw the selection. */
  public void draw(Graphics g) {
    Rectangle bb = _content.getBoundingBox();
    g.setColor(Globals.prefs().handleColor(_content));
    g.drawRect(bb.x - BORDER_WIDTH,
	       bb.y - BORDER_WIDTH,
	       bb.width + BORDER_WIDTH * 2 - 1,
	       bb.height + BORDER_WIDTH * 2 - 1);
    g.drawRect(bb.x - BORDER_WIDTH - 1,
	       bb.y - BORDER_WIDTH - 1,
	       bb.width + BORDER_WIDTH * 2 + 2 - 1,
	       bb.height + BORDER_WIDTH * 2 + 2 - 1);
    g.fillRect(bb.x - HAND_SIZE, bb.y - HAND_SIZE,
	       HAND_SIZE, HAND_SIZE);
    g.fillRect(bb.x + bb.width, bb.y - HAND_SIZE,
	       HAND_SIZE, HAND_SIZE);
    g.fillRect(bb.x - HAND_SIZE, bb.y + bb.height,
	       HAND_SIZE, HAND_SIZE);
    g.fillRect(bb.x + bb.width, bb.y + bb.height,
	       HAND_SIZE, HAND_SIZE);
  }

  /** SelectionBox is used when there are no handles, so dragHandle
   * does nothing. Actually, pickHandle always returns -1 , so this
   * method should never even get called. */
  public void dragHandle(int mx, int my, int an_x,int an_y, Handle h) {
    /* do nothing */
  }

  /** The bounding box of the SelectionBox is the contents bbox plus a
   * border on all sides */
  public Rectangle getBoundingBox() {
    Rectangle r = _content.getBoundingBox();
    return r;
  }

} /* end class SelectionBox */