import java.applet.Applet;
import java.awt.Graphics;

// must import jgl.GL....
import jgl.GL;
import jgl.GLAUX;

public class polys extends Applet {
    // must use GL to use jGL.....
    // and use GLAUX to use the aux functions.....
    // remember to give GL to initialize GLAUX
    GL myGL = new GL ();
    GLAUX myAUX = new GLAUX (myGL);

    private void drawOneLine (float x1, float y1, float x2, float y2) {
	myGL.glBegin (GL.GL_LINES);
	    myGL.glVertex2f (x1, y1);
	    myGL.glVertex2f (x2, y2);
	myGL.glEnd ();
    }

    private void display () {
	byte fly[] = {
		(byte)0x00, (byte)0x00, (byte)0x00, (byte)0x00,
		(byte)0x00, (byte)0x00, (byte)0x00, (byte)0x00,
		(byte)0x03, (byte)0x80, (byte)0x01, (byte)0xC0, 
		(byte)0x06, (byte)0xC0, (byte)0x03, (byte)0x60,
		(byte)0x04, (byte)0x60, (byte)0x06, (byte)0x20, 
		(byte)0x04, (byte)0x30, (byte)0x0C, (byte)0x20,
		(byte)0x04, (byte)0x18, (byte)0x18, (byte)0x20, 
		(byte)0x04, (byte)0x0C, (byte)0x30, (byte)0x20,
		(byte)0x04, (byte)0x06, (byte)0x60, (byte)0x20, 
		(byte)0x44, (byte)0x03, (byte)0xC0, (byte)0x22,
		(byte)0x44, (byte)0x01, (byte)0x80, (byte)0x22, 
		(byte)0x44, (byte)0x01, (byte)0x80, (byte)0x22,
		(byte)0x44, (byte)0x01, (byte)0x80, (byte)0x22, 
		(byte)0x44, (byte)0x01, (byte)0x80, (byte)0x22,
		(byte)0x44, (byte)0x01, (byte)0x80, (byte)0x22, 
		(byte)0x44, (byte)0x01, (byte)0x80, (byte)0x22,
		(byte)0x66, (byte)0x01, (byte)0x80, (byte)0x66, 
		(byte)0x33, (byte)0x01, (byte)0x80, (byte)0xCC,
		(byte)0x19, (byte)0x81, (byte)0x81, (byte)0x98, 
		(byte)0x0C, (byte)0xC1, (byte)0x83, (byte)0x30,
		(byte)0x07, (byte)0xe1, (byte)0x87, (byte)0xe0, 
		(byte)0x03, (byte)0x3f, (byte)0xfc, (byte)0xc0,
		(byte)0x03, (byte)0x31, (byte)0x8c, (byte)0xc0, 
		(byte)0x03, (byte)0x33, (byte)0xcc, (byte)0xc0,
		(byte)0x06, (byte)0x64, (byte)0x26, (byte)0x60, 
		(byte)0x0c, (byte)0xcc, (byte)0x33, (byte)0x30,
		(byte)0x18, (byte)0xcc, (byte)0x33, (byte)0x18, 
		(byte)0x10, (byte)0xc4, (byte)0x23, (byte)0x08,
		(byte)0x10, (byte)0x63, (byte)0xC6, (byte)0x08, 
		(byte)0x10, (byte)0x30, (byte)0x0c, (byte)0x08,
		(byte)0x10, (byte)0x18, (byte)0x18, (byte)0x08, 
		(byte)0x10, (byte)0x00, (byte)0x00, (byte)0x08 };

	byte halftone[] = {
		(byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
		(byte)0x55, (byte)0x55, (byte)0x55, (byte)0x55,
		(byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
		(byte)0x55, (byte)0x55, (byte)0x55, (byte)0x55,
		(byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
		(byte)0x55, (byte)0x55, (byte)0x55, (byte)0x55,
		(byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
		(byte)0x55, (byte)0x55, (byte)0x55, (byte)0x55,
		(byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
		(byte)0x55, (byte)0x55, (byte)0x55, (byte)0x55,
		(byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
		(byte)0x55, (byte)0x55, (byte)0x55, (byte)0x55,
		(byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
		(byte)0x55, (byte)0x55, (byte)0x55, (byte)0x55,
		(byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
		(byte)0x55, (byte)0x55, (byte)0x55, (byte)0x55,
		(byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
		(byte)0x55, (byte)0x55, (byte)0x55, (byte)0x55,
		(byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
		(byte)0x55, (byte)0x55, (byte)0x55, (byte)0x55,
		(byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
		(byte)0x55, (byte)0x55, (byte)0x55, (byte)0x55,
		(byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
		(byte)0x55, (byte)0x55, (byte)0x55, (byte)0x55,
		(byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
		(byte)0x55, (byte)0x55, (byte)0x55, (byte)0x55,
		(byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
		(byte)0x55, (byte)0x55, (byte)0x55, (byte)0x55,
		(byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
		(byte)0x55, (byte)0x55, (byte)0x55, (byte)0x55,
		(byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
		(byte)0x55, (byte)0x55, (byte)0x55, (byte)0x55 };

	myGL.glClear (GL.GL_COLOR_BUFFER_BIT);

	myGL.glColor3f (1.0f, 1.0f, 1.0f);

	myGL.glRectf (25.0f, 25.0f, 125.0f, 125.0f);
	myGL.glEnable (GL.GL_POLYGON_STIPPLE);
	myGL.glPolygonStipple (fly);
	myGL.glRectf (125.0f, 25.0f, 225.0f, 125.0f);
	myGL.glPolygonStipple (halftone);
	myGL.glRectf (225.0f, 25.0f, 325.0f, 125.0f);
	myGL.glDisable (GL.GL_POLYGON_STIPPLE);

	myGL.glFlush ();
    }

    private void myinit () {
	/* background to be cleared to black */
	myGL.glClearColor (0.0f, 0.0f, 0.0f, 0.0f);
	myGL.glShadeModel (GL.GL_FLAT);
    }

    public void update (Graphics g) {
    	// skip the clear screen command....
	paint (g);
    }

    public void paint (Graphics g) {
	myGL.glXSwapBuffers (g, this);
    }

    public void init () {
	myAUX.auxInitPosition (0, 0, 350, 150);
	myAUX.auxInitWindow (this);
	myinit ();

        // call display as call auxIdleFunc(display)
	display ();
    }

}