/*
 *  cube.java
 *  This program demonstrates a single modeling transformation,
 *  glScalef() and a single viewing transformation, gluLookAt().
 *  A wireframe cube is rendered.
 */

import java.awt.Frame;
import java.io.IOException;
import java.lang.String;
import java.lang.System;

import jgl.GL;
import jgl.GLCanvas;

public class cube extends GLCanvas {

    private void myinit () {
	myGL.glClearColor (0.0f, 0.0f, 0.0f, 0.0f);
	myGL.glShadeModel (GL.GL_FLAT);
    }

    public void display () {
	myGL.glClear (GL.GL_COLOR_BUFFER_BIT);
	myGL.glColor3f (1.0f, 1.0f, 1.0f);
	myGL.glLoadIdentity ();			/* clear the matrix */
	/* viewing transformation  */
        myGL.glTranslatef (0.0f, 0.0f, -5.0f);
	myGL.glScalef (1.0f, 2.0f, 1.0f);	/* modeling transformation */ 
	myUT.glutWireCube (1.0);
	myGL.glFlush ();
    }

    public void myReshape (int w, int h) {
	myGL.glViewport (0, 0, w, h);		/* define the viewport */
	myGL.glMatrixMode (GL.GL_PROJECTION);	/* prepare for and then */
	myGL.glLoadIdentity ();			/* define the projection */
	myGL.glFrustum (-1.0f,  1.0f,		/* transformation */
			-1.0f,  1.0f,
			 1.5f, 20.0f);
	myGL.glMatrixMode (GL.GL_MODELVIEW);	/* back to modelview matrix */
    }

    /* ARGSUSED1 */
    public void keyboard (char key, int x, int y) {
	switch (key) {
	    case 27:
		System.exit(0);
	    default:
		break;
	}
    }

    public void init () {
	myUT.glutInitWindowSize (500, 500);
	myUT.glutInitWindowPosition (0, 0);
	myUT.glutCreateWindow (this);
	myinit ();
	myUT.glutDisplayFunc ("display");
	myUT.glutReshapeFunc ("myReshape");
	myUT.glutKeyboardFunc ("keyboard");
	myUT.glutMainLoop ();
    }

    static public void main (String args[]) throws IOException {
	Frame mainFrame = new Frame ();
	mainFrame.setSize (508, 527);
	cube mainCanvas = new cube ();
	mainCanvas.init();
	mainFrame.add (mainCanvas);
	mainFrame.setVisible (true);
    }

}