import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.vecmath.Point3d;

import com.sun.j3d.utils.geometry.ColorCube;
import com.sun.j3d.utils.picking.PickResult;
import com.sun.j3d.utils.picking.PickTool;
import com.sun.j3d.utils.universe.SimpleUniverse;

@SuppressWarnings("serial")
public class PickToolTest extends Frame
{
	// ############################################
	// Change this from false to true for testing:
	// ############################################
	private static final boolean IS_OFFSCREEN = true;
	// ############################################

	protected PickTool a_Picker = null;

	public PickToolTest()
	{
		setLayout(new BorderLayout());
		setSize(1024, 768);
		addWindowListener(new WindowAdapter() {
			@Override
			public void windowClosing(WindowEvent e)
			{
				dispose();
				System.exit(0);
			}
		});
		////////////////////////////////////
		Canvas3D canvas3D = new Canvas3D(SimpleUniverse.getPreferredConfiguration(), IS_OFFSCREEN);
		if(!IS_OFFSCREEN)
		{
			add(canvas3D, BorderLayout.CENTER);
		}
		BranchGroup scene = new BranchGroup();
		scene.addChild(new ColorCube(0.5));
		

		a_Picker = new PickTool(scene);
		a_Picker.setMode(PickTool.GEOMETRY_INTERSECT_INFO);

		SimpleUniverse uni = new SimpleUniverse(canvas3D);
		uni.getViewingPlatform().setNominalViewingTransform();

		uni.addBranchGraph(scene);
		////////////////////////////////////
	}

	public void pickCube()
	{
		Point3d startPoint = new Point3d(0,0,+1000);
		Point3d endPoint = new Point3d(0,0,-1000);
        a_Picker.setShapeSegment(startPoint, endPoint);
        
        PickResult[] pickResults = a_Picker.pickAllSorted();
        
        System.out.println("Pick results for IS_OFFSET="+IS_OFFSCREEN+":\n");
        System.out.println(pickResults);
	}

	public static void main(String[] args)
	{
		System.setProperty("sun.awt.noerasebackground", "true"); // needed due to a AWT repaint bug
		System.out.println("############");
		System.out.println("PickToolTest");
		System.out.println("############");
		PickToolTest test = new PickToolTest();
		test.setVisible(true);
		test.pickCube();
		System.out.println("\n############");
	}

}