DiamondHead.java

/**
 *
    Java Diagram Package; An extremely flexible and fast multipurpose diagram 
    component for Swing.
    Copyright (C) 2001  Eric Crahen <crahen@cse.buffalo.edu>

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

    You should have received a copy of the GNU 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 diagram.shape;

import java.awt.geom.GeneralPath;

/**
 * @class DiamondHead
 *
 * @date 08-20-2001
 * @author Eric Crahen
 * @version 1.0
 *
 * This shape can create an diamond head whose center is at the local coordinates
 * (0,0).
 */
public class DiamondHead {


  /**
   * Create an diamond head
   *
   * @param GeneralPath
   *
   * @return GeneralPath
   */
  public static GeneralPath createDiamondHead(double x, double y, double w, double h) {
    return createDiamondHead(x, y, w, h, null);
  }

  public static GeneralPath createDiamondHead(double x, double y, double w, double h, GeneralPath path) {

    if(path == null)
      path = new GeneralPath();
    else
      path.reset();

    path.moveTo((float)x, (float)y);   
    path.lineTo((float)(x+1.5*w), (float)(y-h));
    path.lineTo((float)(x+3.0*w), (float)y);
    path.lineTo((float)(x+1.5*w), (float)(y+h));

    path.closePath();

    return path;

  }

}