OSGMatrixCameraDecorator.cpp

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/*---------------------------------------------------------------------------*\
 *                                OpenSG                                     *
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 *               Copyright (C) 2000-2002 by the OpenSG Forum                 *
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/*---------------------------------------------------------------------------*\
 *                                License                                    *
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 * This library is free software; you can redistribute it and/or modify it   *
 * under the terms of the GNU Library General Public License as published    *
 * by the Free Software Foundation, version 2.                               *
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 * This library is distributed in the hope that it will be useful, but       *
 * WITHOUT ANY WARRANTY; without even the implied warranty of                *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
 * Library General Public License for more details.                          *
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 *                                Changes                                    *
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\*---------------------------------------------------------------------------*/

//---------------------------------------------------------------------------
//  Includes
//---------------------------------------------------------------------------

#include <stdlib.h>
#include <stdio.h>

#include <OSGConfig.h>

#include "OSGMatrixCameraDecorator.h"

OSG_USING_NAMESPACE

/***************************************************************************\
 *                            Description                                  *
\***************************************************************************/

/***************************************************************************\
 *                           Class variables                               *
\***************************************************************************/

/***************************************************************************\
 *                           Class methods                                 *
\***************************************************************************/

void MatrixCameraDecorator::initMethod (void)
{
}


/***************************************************************************\
 *                           Instance methods                              *
\***************************************************************************/

/*-------------------------------------------------------------------------*\
 -  private                                                                 -
\*-------------------------------------------------------------------------*/

/*----------------------- constructors & destructors ----------------------*/

MatrixCameraDecorator::MatrixCameraDecorator(void) :
    Inherited()
{
}

MatrixCameraDecorator::MatrixCameraDecorator(const MatrixCameraDecorator &source) :
    Inherited(source)
{
}

MatrixCameraDecorator::~MatrixCameraDecorator(void)
{
}

/*----------------------------- class specific ----------------------------*/

void MatrixCameraDecorator::changed(BitVector whichField, UInt32 origin)
{
    Inherited::changed(whichField, origin);
}


void MatrixCameraDecorator::getProjection(Matrix &result, 
                                          UInt32 width, UInt32 height)
{
    CameraPtr camera = getDecoratee();
    if(camera == NullFC)
    {
        FWARNING(("MatrixCameraDecorator::getProjection: no decoratee!\n"));
        result.setIdentity();
        return;
    }
    camera->getProjection(result, width, height);

    result.multLeft(getPostProjection());
    result.mult(getPreProjection());
}                                       

void MatrixCameraDecorator::getProjectionTranslation(Matrix &result, 
                                                     UInt32 width, UInt32 height)
{
    CameraPtr camera = getDecoratee();
    if(camera == NullFC)
    {
        FWARNING(("MatrixCameraDecorator::getProjectionTranslation: no decoratee!\n"));
        result.setIdentity();
        return;
    }
    camera->getProjectionTranslation(result, width, height);

    result.multLeft(getPostProjectionTranslation());
    result.mult(getPreProjectionTranslation());
}                                       

void MatrixCameraDecorator::getViewing(Matrix &result, 
                                       UInt32 width, UInt32 height)
{
    CameraPtr camera = getDecoratee();
    if(camera == NullFC)
    {
        FWARNING(("MatrixCameraDecorator::getViewing: no decoratee!\n"));
        result.setIdentity();
        return;
    }
    camera->getViewing(result, width, height);
    
    result.multLeft(getPostViewing());
    result.mult(getPreViewing());
}                                       

void MatrixCameraDecorator::dump(      UInt32    , 
                         const BitVector ) const
{
    SLOG << "Dump MatrixCameraDecorator NI" << std::endl;
}


/*------------------------------------------------------------------------*/
/*                              cvs id's                                  */

#ifdef OSG_SGI_CC
#pragma set woff 1174
#endif

#ifdef OSG_LINUX_ICC
#pragma warning( disable : 177 )
#endif

namespace
{
    static Char8 cvsid_cpp       [] = "@(#)$Id: $";
    static Char8 cvsid_hpp       [] = OSGMATRIXCAMERADECORATORBASE_HEADER_CVSID;
    static Char8 cvsid_inl       [] = OSGMATRIXCAMERADECORATORBASE_INLINE_CVSID;

    static Char8 cvsid_fields_hpp[] = OSGMATRIXCAMERADECORATORFIELDS_HEADER_CVSID;
}

#ifdef __sgi
#pragma reset woff 1174
#endif

---