primer.h

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/*
 *  Copyright (c) 2003, Matt Beard
 *
 *  This software is provided 'as-is', without any express or implied warranty.
 *  In no event will the authors be held liable for any damages arising from
 *  the use of this software.
 *
 *  Permission is granted to anyone to use this software for any purpose,
 *  including commercial applications, and to alter it and redistribute it
 *  freely, subject to the following restrictions:
 *
 *    1. The origin of this software must not be misrepresented; you must
 *       not claim that you wrote the original software. If you use this
 *       software in a product, an acknowledgment in the product
 *       documentation would be appreciated but is not required.
 *  
 *    2. Altered source versions must be plainly marked as such, and must
 *       not be misrepresented as being the original software.
 *  
 *    3. This notice may not be removed or altered from any source
 *       distribution.
 */
#ifndef MXFLIB__PRIMER_H
#define MXFLIB__PRIMER_H

#include <mxflib/mdtype.h>


#include <map>

namespace mxflib
{
    // Forward declare so the class can be used
    class Primer;

    typedef SmartPtr<Primer> PrimerPtr;

    typedef std::list<PrimerPtr> PrimerList;
}


namespace mxflib
{
    // Required to make MSVC compile!
    typedef std::map<Tag, UL> Primer_Root;

    class Primer : public Primer_Root, public RefCount<Primer>
    {
    protected:
        Tag NextDynamic;                        
        std::map<UL, Tag> TagLookup;            

    public:
        Primer() { NextDynamic = 0xffff; };
        UInt32 ReadValue(const UInt8 *Buffer, UInt32 Size);

        UInt32 WritePrimer(DataChunkPtr &Buffer);

        Tag Lookup(ULPtr ItemUL, Tag TryTag = 0);

        static Tag StaticLookup(ULPtr ItemUL, Tag TryTag = 0);

        std::pair<iterator, bool> insert(value_type Val) 
        { 
            TagLookup.insert(std::map<UL, Tag>::value_type(Val.second, Val.first));
            return Primer_Root::insert(Val);
        }
    };
}

#endif // MXFLIB__PRIMER_H

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