ScalarSample.h

//-*****************************************************************************
//
// Copyright (c) 2009-2012,
//  Sony Pictures Imageworks, Inc. and
//  Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
// *       Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// *       Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// *       Neither the name of Sony Pictures Imageworks, nor
// Industrial Light & Magic nor the names of their contributors may be used
// to endorse or promote products derived from this software without specific
// prior written permission.
//
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//-*****************************************************************************
 
#ifndef Alembic_AbcCoreAbstract_ScalarSample_h
#define Alembic_AbcCoreAbstract_ScalarSample_h
 
#include <Alembic/Util/Export.h>
#include <Alembic/AbcCoreAbstract/Foundation.h>
#include <Alembic/AbcCoreAbstract/DataType.h>
 
namespace Alembic {
namespace AbcCoreAbstract {
namespace ALEMBIC_VERSION_NS {
 
//-*****************************************************************************
class ALEMBIC_EXPORT ScalarSample
    : public Alembic::Util::totally_ordered<ScalarSample>
{
public:
    //-*************************************************************************
    // Data
    //-*************************************************************************
    class Data
    {
    public:
        virtual ~Data() {}
 
        virtual void setToDefault() = 0;
        virtual void copyFrom( const void *iData ) = 0;
        virtual bool equalTo( const void *iData ) const = 0;
        virtual bool equalEpsilon( const void *iData,
                                   double iEpsilon ) const = 0;
        virtual bool lessThan( const void *iData ) const = 0;
        virtual const void *getData() const = 0;
    };

    explicit ScalarSample( const DataType &iDataType );

    void copyFrom( const void *iData )
    {
        m_data->copyFrom( iData );
    }
 
    //-*************************************************************************
    // Data Access
    //-*************************************************************************

    const DataType &getDataType() const { return m_dataType; }

    const void *getData() const { return m_data->getData(); }
 
    //-*************************************************************************
    // Comparison and Equality
    //-*************************************************************************

    bool operator==( const void *iRhs ) const
    {
        return m_data->equalTo( iRhs );
    }

    bool operator==( const ScalarSample &iRhs ) const
    {
        return ( iRhs.getDataType() == m_dataType ) &&
            m_data->equalTo( iRhs.getData() );
    }

    bool equalWithRelAbsError( const void *iRhs,
                               double iRelAbsError ) const
    {
        return m_data->equalEpsilon( iRhs, iRelAbsError );
    }

    bool equalWithRelAbsError( const ScalarSample &iRhs,
                               double iRelAbsError ) const
    {
        return ( iRhs.getDataType() == m_dataType ) &&
            m_data->equalEpsilon( iRhs.getData(), iRelAbsError );
    }

    bool operator<( const void *iRhs ) const
    {
        return m_data->lessThan( iRhs );
    }

    bool operator<( const ScalarSample &iRhs ) const
    {
        if ( m_dataType < iRhs.getDataType() )
        {
            return true;
        }
        else if ( m_dataType > iRhs.getDataType() )
        {
            return false;
        }
        else
        {
            return m_data->lessThan( iRhs.getData() );
        }
    }
 
    //-*************************************************************************
    // Useful functions
    //-*************************************************************************

    void setToDefault()
    {
        m_data->setToDefault();
    }
 
private:
    DataType m_dataType;
    Alembic::Util::unique_ptr<Data> m_data;
};
 
} // End namespace ALEMBIC_VERSION_NS
 
using namespace ALEMBIC_VERSION_NS;
 
} // End namespace AbcCoreAbstract
} // End namespace Alembic
 
#endif