//-------------------------------------------------------------------------

//

//  File: OpenGLTorus.m

//

//  Abstract: Class that implements a method for generating an 

//            ordinary torus (a surface having genus one) and

//            returning its display list ID.

//

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//-------------------------------------------------------------------------

//------------------------------------------------------------------------

#include "OpenGLTorusGenerator.hpp"

//------------------------------------------------------------------------

#import "OpenGLTorus.h"

//------------------------------------------------------------------------

//------------------------------------------------------------------------

static GLvoid NewTorus( GLint     theModelType, 

                        GLdouble  theInnerRadii, 

                        GLdouble  theOuterRadii, 

                        GLint     theSidesCount, 

                        GLint     theRingsCount )

{

    Torus torus( theModelType, theSidesCount, theRingsCount, theInnerRadii, theOuterRadii );

    torus.GetTorus( );

} // NewTorus

//------------------------------------------------------------------------

//------------------------------------------------------------------------

@implementation OpenGLTorusModel

//------------------------------------------------------------------------

- (id) initWithModelType:(NSInteger)theModelType  

                modelRange:(NSInteger)theRange

                innerRadii:(GLdouble)theInnerRadii

                outerRadii:(GLdouble)theOuterRadii 

                sidesCount:(NSInteger)theSidesCount 

                ringsCount:(NSInteger)theRingsCount

{

    self = [super init];

    range = theRange;

    displayList = glGenLists( theRange );

    glNewList( displayList, GL_COMPILE );

        NewTorus( theModelType, theInnerRadii, theOuterRadii, theSidesCount, theRingsCount );

    glEndList();

    return  self;

} // initWithModelType

//------------------------------------------------------------------------

- (void) dealloc

{

    glDeleteLists( displayList, range );

    [super dealloc];

} // dealloc

//------------------------------------------------------------------------

- (void) callList;

{

    glCallList( displayList );

} // callList

//------------------------------------------------------------------------

@end

//------------------------------------------------------------------------

//------------------------------------------------------------------------