/* Auteur: Nicolas JANEY         */
/* nicolas.janey@univ-fcomte.fr  */
/* Novembre 2001                 */
/* Utilisation des quadriques    */
/* de la librairie Glu           */

#include <stdio.h>
#include <math.h>

#include <GL/glut.h>
#include <GL/gl.h>
#include <GL/glu.h>

#include "ModuleManipulateur.h"
#include "ModuleCouleurs.h"
#include "ModuleMenus.h"
#include "ModuleReshape.h"
#include "ModuleFont.h"

static int aff = 0 ;
static int disc = 20 ;
static int fillMode = 3;
static int normalMode = 2;
static double ir = 2.0;
static double er = 6.0;
static double h = 5.0;

void myinit(void) {
  GLfloat light_position0[] = { 0.5F,0.5F,1.0F,0.0F };
  glLightfv(GL_LIGHT0,GL_AMBIENT,couleurNoir());
  glLightfv(GL_LIGHT0,GL_DIFFUSE,couleurBlanc());
  glLightfv(GL_LIGHT0,GL_SPECULAR,couleurBlanc());
  glLightfv(GL_LIGHT0,GL_POSITION,light_position0);
  glEnable(GL_LIGHT0);
  glEnable(GL_LIGHTING);
  glEnable(GL_AUTO_NORMAL);
  glEnable(GL_NORMALIZE);
  glEnable(GL_DEPTH_TEST);
  glDepthFunc(GL_LESS);
  setAlignement(CENTER);
}

void display(void) {
  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  glEnable(GL_DEPTH_TEST);
  glEnable(GL_LIGHTING);
  glPushMatrix() ;
  manipulateurSouris();
  manipulateurClavier();
  glRotatef(-10.0F,1.0,0.0,0.0);
  glRotatef(-15.0F,0.0,1.0,0.0);
  GLUquadricObj *qobj;
  qobj = gluNewQuadric();
  switch (fillMode) {
    case 0 : gluQuadricDrawStyle(qobj,GLU_POINT);
             break;
    case 1 : gluQuadricDrawStyle(qobj,GLU_LINE);
             break;
    case 2 : gluQuadricDrawStyle(qobj,GLU_SILHOUETTE);
             break;
    case 3 : gluQuadricDrawStyle(qobj,GLU_FILL);
             break; }
  switch (normalMode) {
    case 0 : gluQuadricNormals(qobj,GLU_NONE);
             break;
    case 1 : gluQuadricNormals(qobj,GLU_FLAT);
             break;
    case 2 : gluQuadricNormals(qobj,GLU_SMOOTH);
             break; }
  switch (aff) {
    case 0 : gluSphere(qobj,er,disc,disc);
             break;
    case 1 : gluCylinder(qobj,er,ir,h,disc,disc);
             break;
    case 2 : gluDisk(qobj,ir,er,disc,disc);
             break;
    case 3 : gluPartialDisk(qobj,ir,er,disc,disc,30.0,220.0);
             break; }
  gluDeleteQuadric(qobj);
  glPopMatrix() ;
  glColor4fv(couleurRouge());
  glDisable(GL_DEPTH_TEST);
  glDisable(GL_LIGHTING);
  glPushMatrix() ;
  placeFontCursor(0.0F,-8.0F,0.0F) ;
  switch (aff) {
    case 0 : simpleBitmapOutput(REGULAR8x13,"SPHERE") ;
             break;
    case 1 : simpleBitmapOutput(REGULAR8x13,"CYLINDRE - CONE") ;
             break;
    case 2 : simpleBitmapOutput(REGULAR8x13,"DISQUE TROUE") ;
             break;
    case 3 : simpleBitmapOutput(REGULAR8x13,"DISQUE TROUE PARTIEL") ;
             break; }
  glPopMatrix() ;
  glFlush();
  glutSwapBuffers() ;
}

void key(unsigned char key,int x,int y) {
  if ( keyManipulateur(key,x,y) )
    glutPostRedisplay();
    else
    switch ( key ) {
      case 'e'    : er += 0.1;
                    glutPostRedisplay();
                    break ;
      case 'E'    : er -= 0.1;
                    if ( er < 0.1 )
                      er = 0.1;
                    glutPostRedisplay();
                    break ;
      case 'i'    : ir += 0.1;
                    glutPostRedisplay();
                    break ;
      case 'I'    : ir -= 0.1;
                    if ( ir < 0.1 )
                      ir = 0.1;
                    glutPostRedisplay();
                    break ;
      case 'h'    : h += 0.1;
                    glutPostRedisplay();
                    break ;
      case 'H'    : h -= 0.1;
                    if ( h < 0.1 )
                      h = 0.1;
                    glutPostRedisplay();
                    break ;
      case 43     : disc++;
                    glutPostRedisplay();
                    break ;
      case 45     : disc--;
                    if ( disc < 3 )
                      disc = 3;
                    glutPostRedisplay();
                    break ;
      case 0x0D   : aff = (aff+1)%4 ;
                    glutPostRedisplay();
                    break ;
      case ' '    : fillMode = (fillMode+1)%4 ;
                    glutPostRedisplay();
                    break ;
      case 'n'    :
      case 'N'    : normalMode = (normalMode+1)%3 ;
                    glutPostRedisplay();
                    break ; }
}

int main(int argc,char **argv) {
  glutInit(&argc,argv);
  glutInitDisplayMode(GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE);
  glutInitWindowSize(250,200); 
  glutInitWindowPosition(50,50); 
  glutCreateWindow("Quadriques par la librairie GLU"); 
  myinit(); 
  creationMenuBasique();
  setParametresOrthoBasique(-10.0,10.0,-10.0,10.0,-500.0,500.0);
  setManipulateurDistance(1.0F);
  glutReshapeFunc(reshapeOrthoBasique);
  glutKeyboardFunc(key);
  glutSpecialFunc(specialBasique);
  glutMotionFunc(motionBasique);
  glutMouseFunc(sourisBasique);
  glutDisplayFunc(display);
  glutMainLoop();
  return(0);
}