#if !defined(Linux)
  #include <windows.h>           //Not Linux must be windows
#else
	#include <stdlib.h>
#endif
#include <GL/gl.h>
#include <stdio.h>
#include <GL/glut.h>

int a[3]={10,10,10}, b[3]={10,-10,10}, c[3]={-10,-10,10}, d[3]={-10,10,10},
     e[3]={10,10,-10}, f[3]={10,-10,-10}, g[3]={-10,-10,-10}, h[3]={-10,10,-10};

float angle=0.0;

void drawcube(void) {

  glClear(GL_COLOR_BUFFER_BIT);
  glColor3f(1.0, 1.0, 1.0);

  glMatrixMode(GL_MODELVIEW);
  glRotatef(angle, 0.0, 1.0, 0.0);
  glBegin(GL_LINE_LOOP);
     glVertex3iv(a);
     glVertex3iv(b);
     glVertex3iv(c);
     glVertex3iv(d);
  glEnd();
  glBegin(GL_LINE_LOOP);
     glVertex3iv(a);
     glVertex3iv(e);
     glVertex3iv(f);
     glVertex3iv(b);
  glEnd();
  glBegin(GL_LINE_LOOP);
     glVertex3iv(d);
     glVertex3iv(h);
     glVertex3iv(g);
     glVertex3iv(c);
  glEnd();
  glBegin(GL_LINE_LOOP);
     glVertex3iv(e);
     glVertex3iv(f);
     glVertex3iv(g);
     glVertex3iv(h);
  glEnd();
  glutSwapBuffers();
  glFlush();
}

void keyboard(unsigned char key, int x, int y) {

   switch (key){
      case 0x1B:
      case 'q':
      case 'Q':
	 exit(0);
	 break;
   }
}

void mouse(int btn, int state, int x, int y) {

   printf("%3d, %3d, %f\n", btn, state, angle);
   if (state == GLUT_DOWN) {
      if (btn==GLUT_LEFT_BUTTON) {
  	  angle = angle + 1.0;
      }
      else if (btn == GLUT_RIGHT_BUTTON) {
	  angle = angle - 1.0;
      }
      else {
	  angle = 0.0;
      }
   }
}

main(int argc, char **argv) {

  glutInit(&argc, argv);
  glutInitWindowSize(500, 500);
  glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
  glutCreateWindow("Glut rotate");
  glutMouseFunc(mouse);
  glutKeyboardFunc(keyboard);
  glutDisplayFunc(drawcube);
  glutIdleFunc(drawcube); 

  glMatrixMode(GL_PROJECTION);
  glOrtho(-30.0, 30.0, -30.0, 30.0, -30.0, 30.0);

  glMatrixMode(GL_MODELVIEW);
  glRotatef(30.0, 1.0, 0.0, 0.0); 
  glClearColor(0.0, 0.0, 0.0, 1.0);

  glutMainLoop();
}