/*
 * (c) Copyright 1993, Silicon Graphics, Inc.
 * ALL RIGHTS RESERVED 
 * Permission to use, copy, modify, and distribute this software for 
 * any purpose and without fee is hereby granted, provided that the above
 * copyright notice appear in all copies and that both the copyright notice
 * and this permission notice appear in supporting documentation, and that 
 * the name of Silicon Graphics, Inc. not be used in advertising
 * or publicity pertaining to distribution of the software without specific,
 * written prior permission. 
 *
 * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
 * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
 * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
 * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
 * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
 * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
 * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
 * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
 * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
 * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
 * 
 * US Government Users Restricted Rights 
 * Use, duplication, or disclosure by the Government is subject to
 * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
 * (c)(1)(ii) of the Rights in Technical Data and Computer Software
 * clause at DFARS 252.227-7013 and/or in similar or successor
 * clauses in the FAR or the DOD or NASA FAR Supplement.
 * Unpublished-- rights reserved under the copyright laws of the
 * United States.  Contractor/manufacturer is Silicon Graphics,
 * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
 *
 * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
 */
/*
 *  simple.c
 *  This program draws a white rectangle on a black background.
 */
#include <GL/gl.h>
#include <stdlib.h>
#include <GL/glut.h>

void keyboard(unsigned char key, int x, int y)
{
   switch (key) {
      case 27:
         exit(0);
         break;
   }
}

void init(void)
{
        glClearColor (0.0, 0.0, 0.0, 0.0);
        glColor3f(1.0, 1.0, 1.0);
        glMatrixMode (GL_PROJECTION);
        glLoadIdentity ();
        glOrtho(-1.0, 1.0, -1.0, 1.0, -1.0, 1.0);
//       glOrtho(0.0, 35.0, 0.0, 25.0, -1.0, 1.0);
	glMatrixMode (GL_MODELVIEW);
        glLoadIdentity ();
}


void display(void)
{
  	glPushMatrix();
        glClear(GL_COLOR_BUFFER_BIT);
  	glViewport(0,0, 200,200);
//        glBegin(GL_POLYGON);
//        glBegin(GL_POINTS);
//        glBegin(GL_LINES);
//        glBegin(GL_LINE_STRIP);
  	glRotatef(30.0,0.0,0.0,1.0);
//	glTranslatef(-0.5,0.5,0.0);
  	glScalef(1.0,0.5,1.0);
  	glTranslatef(-0.5,0.5,0.0);
//	glRotatef(30.0,0.0,0.0,1.0);
        glBegin(GL_LINE_LOOP);
                glVertex2f(-0.5, -0.5);
                glVertex2f(-0.5, 0.5);
                glVertex2f(0.5, 0.5);
                glVertex2f(0.5, -0.5);
        glEnd();
        glFlush();
  	glPopMatrix();
}

int main(int argc, char** argv)
{
   glutInit(&argc, argv);
   glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
   glutInitWindowSize (500, 500);
   glutInitWindowPosition (100, 100);
   glutCreateWindow (argv[0]);
   glutDisplayFunc(display);
   glutKeyboardFunc(keyboard);
   init();
   glutMainLoop();
}