basic/geometry/vrml_reader/VrmlShape.cpp

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#include <assert.h>
#include "debug/debug.h"
#include <stdio.h>
#include "utility.h"
#include "VrmlShape.h"

//=============================================================================
// Parse
//
// Description: Parses the shape node from a file
//=============================================================================
VrmlShape::~VrmlShape()
{
        m_Appearance->Release();
        m_Geometry->Release();
}

//=============================================================================
// Parse
//
// Description: Parses the shape node from a file
//=============================================================================
void VrmlShape::Parse( char*& buffer )
{
        EatWhite( buffer );
        while( *buffer != '}' )
        {
                Keyword keyword = VrmlNode::GetKeyword( buffer );
                if( keyword == VRML_Geometry )
                {
                        Keyword keyword = VrmlNode::GetKeyword( buffer );
                        EatWhite( buffer );
                        buffer++;
                        VrmlNode* node = VrmlNode::ParseNode( keyword, buffer );
                        this->m_Geometry = node;
                        this->m_Geometry->AddRef();
                }
                else if( keyword == VRML_AppearanceLower )
                {
                        Keyword keyword = VrmlNode::GetKeyword( buffer );
                        EatWhite( buffer );
                        buffer++;
                        VrmlNode* node = VrmlNode::ParseNode( keyword, buffer );
                        this->m_Appearance = node;
                        this->m_Appearance->AddRef();
                }
                else
                {
                        printf( "VrmlGroup::Parse - Unknown keyword\n" );
                        IJG_Assert( false );
                }
                EatWhite( buffer );
        }

        //advance past the '}'
        EatWhite( buffer );
        buffer++;
}

//=============================================================================
// Render
//
// Description: Reners the node to the stack
//=============================================================================
void VrmlShape::Render( VrmlStack& stack ) const
{
        if( this->m_Appearance != NULL )
        {
                this->m_Appearance->Render( stack );
        }

        if( this->m_Geometry != NULL )
        {
                this->m_Geometry->Render( stack );
        }
}

//=============================================================================
// RenderOpenGL
//
// Description: renders this VRML object to OpenGl
//=============================================================================
void VrmlShape::RenderOpenGl( VrmlStack& stack ) const
{
        if( this->m_Appearance != NULL )
        {
                this->m_Appearance->RenderOpenGl( stack );
        }

        if( this->m_Geometry != NULL )
        {
                this->m_Geometry->RenderOpenGl( stack );
        }
}

//=============================================================================
// RenderToIGS
//
// Description: renders this VRML object to the faster to process 
//                              IanGraphicsSystem
//=============================================================================
IGS_Object* VrmlShape::RenderToIGS( VrmlStack& stack ) const
{
        IGS_Object* returnMe = NULL;

        if( this->m_Appearance != NULL )
        {
                this->m_Appearance->RenderToIGS( stack );
        }

        if( this->m_Geometry != NULL )
        {
                returnMe = this->m_Geometry->RenderToIGS( stack );
        }
        return returnMe;
}

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