#include <windows.h>
#include <gl/Gl.h>
#include <gl/Glu.h>
#include <gl/Glut.h>

//<<<< axis >>>>//
void axis(double length)
{  //draw a z-axis, with cone at end
  glPushMatrix();
  glBegin(GL_LINES);
    glVertex3d(0,0,0);
    glVertex3d(0,0,length);
  glEnd();
  glTranslated(0,0,length -0.2);
  glutWireCone(0.04,0.2,12,9);
  glPopMatrix();
}

//<<<< displayWire >>>>//
void displayWire(void)
{
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
//  glOrtho(-2.0*64/48.0,2.0*64/48.0,-2.0,2.0,0.1,100);
  glOrtho(-1.2*64/48.0,1.2*64/48.0,-1.2,1.2,0.1,100);
  glMatrixMode(GL_MODELVIEW);
  glLoadIdentity();
//  gluLookAt(2.0,2.0,2.0,0.0,0.0,0.0,0.0,1.0,0.0);
  gluLookAt(4.0,2.0,8.0,0.0,0.0,0.0,0.0,1.0,0.0);
  
  glClear(GL_COLOR_BUFFER_BIT);
  glColor3d(0,0,0);

  axis(0.5);
  glPushMatrix();
  glRotated(90,0,1.0,0);
  axis(0.5);
  glRotated(90,1,0,0);
  axis(0.5);
  glPopMatrix();

  glPushMatrix();
  glTranslated(0.5,0.5,0.5);
  glutWireCube(1.0);
  glPopMatrix();

  glPushMatrix();
  glTranslated(1.0,1.0,0);
  glutWireSphere(0.25,10,8);
  glPopMatrix();

  glPushMatrix();
  glTranslated(1.0,0,1.0);
  glutWireCone(0.2,0.5,10,8);
  glPopMatrix();

  glPushMatrix();
  glTranslated(0,0,1.0);
  glutWireTeapot(0.2);
  glPopMatrix();

  glPushMatrix();
  glTranslated(0,1.0,0);
  glRotated(90.0,1,0,0);
  glutWireTorus(0.1,0.3,10,10);
  glPopMatrix();

  glPushMatrix();
  glTranslated(1.0,0,0);
  glScaled(0.15,0.15,0.15);
  glutWireDodecahedron();
  glPopMatrix();

//  glPushMatrix();
//  glTranslated(0,0,1.0);
//  GLUQuadricObj * qobj;
//  qobj = gluNewQuadric();
//  gluQuadricDrawStyle(qobj,GLU_LINE);
//  gluCylinder(qobj,0.2,0.2,0.4,8,8);
//  glPopMatrix();
  glFlush();
}
    
//<<<< main >>>>
void main(int argc, char** argv)
{
   glutInit(&argc, argv);
   glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
//   glutInitWindowSize(640,480);
   glutInitWindowSize(1024,800);
   glutInitWindowPosition(100,100);
   glutCreateWindow("Transformation Testbed - Wire Frames");
   glutDisplayFunc(displayWire);
   glClearColor(1.0f,1.0f,1.0f,0.0f);
   glViewport(0,0,640,480);
//   glViewport(0,0,1200,1000);
   glutMainLoop();
}