/*	The applet graphically represents the shear and bending of a thin (10 micron)
 *	diamond monocrystal due to torsions on its parallel mounting wires.
 *
 *	Brent Evans
 *	Version 1.1, Sept. 2002
 *	new since 1.0 (Aug. 2002):
 *		- user inputs an angular torsion to each of the wires,
 *		  instead of torques on the crystal.
 *	
 *	Affiliate source files: bendCanvas.java, bendGraphic.java, TextSlide.java.
 *
 */ 



import java.applet.*;
import java.awt.*;
import java.lang.Math.*;

public class bender extends Applet {
	bendCanvas canvas;
	TextSlide rightField;  
	TextSlide leftField;  
//	double minVal = -100000, maxVal = 100000;
	double minVal = -4*Math.PI, maxVal = 4*Math.PI;
	// Initialization called by the applet container.
	public void init() {
		setLayout(new BorderLayout(0,0));
		Panel p1 = new Panel();
		p1.setLayout(new GridLayout(1,1,0,0));
		rightField = new TextSlide(this,"Right Torsion (radians): " ,
						minVal,maxVal);
		p1.add(rightField);
		add(p1, BorderLayout.EAST);

		Panel p2 = new Panel();
		p2.setLayout(new GridLayout(1,1,0,0));
		leftField = new TextSlide(this,"Left Torsion (radians): ",
						minVal,maxVal);
		p2.add(leftField);
		add(p2, BorderLayout.WEST);

		canvas = new bendCanvas();
		add(canvas, BorderLayout.CENTER);
		rightField.setValue(0);
		leftField.setValue(0);
		// You have to call validate to convince the canvas to adjust its layout.
		validate();
	}

	// Start the animation.  Called by applet's environment.  
	public void start() 
	{ 
		canvas.setEnabled(true);
		canvas.drawCanvas();
	}

	public void stop() 
	{ 
		canvas.setEnabled(false);
	}

	public void changeParam(TextSlide which) 
	{
		if (which == rightField) 
		{
			canvas.setTorsion_R(rightField.getValue());
		} 
		else if (which == leftField) 
		{
			canvas.setTorsion_L(leftField.getValue());
		}
	}

	public void paint(Graphics g) 
	{ 
	}

}