//
// DisplayAppletJ3D.java
//

/*
VisAD system for interactive analysis and visualization of numerical
data.  Copyright (C) 1996 - 2017 Bill Hibbard, Curtis Rueden, Tom
Rink, Dave Glowacki, Steve Emmerson, Tom Whittaker, Don Murray, and
Tommy Jasmin.

This library 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 library 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 library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA
*/

package visad.java3d;

import java.applet.Applet;
import java.awt.*;
import java.awt.BorderLayout;

import javax.media.j3d.*;

public class DisplayAppletJ3D extends Applet {

  private DisplayImplJ3D display;
  private DisplayRendererJ3D renderer;
  private UniverseBuilderJ3D universe;

  public DisplayAppletJ3D(DisplayImplJ3D d) {
    this(d, null);
  }

  public DisplayAppletJ3D(DisplayImplJ3D d, GraphicsConfiguration config) {
    display = d;
    renderer = (DisplayRendererJ3D) display.getDisplayRenderer();
    setLayout(new BorderLayout());
    VisADCanvasJ3D canvas = new VisADCanvasJ3D(renderer, config);
    canvas.setComponent(this);
    add("Center", canvas);

    UniverseBuilderJ3D universe = new UniverseBuilderJ3D(canvas);
    BranchGroup scene =
      renderer.createSceneGraph(universe.view, universe.vpTrans, canvas);
    universe.addBranchGraph(scene);
  }

  // WLH 17 Dec 2001
  public void destroy() {
    display = null;
    renderer = null;
    if (universe != null) universe.destroy();
  }

}