GDT_Token.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * NAME:        GDT Library. (Geo Delta)
 *
 * COMMENTS:    A Token describes changes to a gdp attribute or position,
 *              on points, primitives or vertices.
 *
 */
#ifndef __GDT_Token_h__
#define __GDT_Token_h__

#include "GDT_API.h"
#include <SYS/SYS_Types.h>

class GEO_Detail;
class GDT_TokenList;
class GDT_JSON;
class UT_IStream;
class UT_JSONWriter;
class UT_JSONParser;

class GA_AIFEditDeltaMap;

// This is the base class for all tokens.
class GDT_API GDT_Token
{
public:
    GDT_Token() {}
    GDT_Token(const GDT_Token &) {}
    virtual ~GDT_Token() {}
    virtual int64   getMemoryUsage(bool inclusive=false) const = 0;

    // TODO: Should we wrap GA_AIFEditDeltaMap so that we're passing around a
    //       slightly less attribute-related mapping?
    virtual void                 applyDeltas(const GDT_TokenList &list,
                                             GEO_Detail &gdp,
                                             const GA_AIFEditDeltaMap &map,
                                             bool inverse=false) const = 0;

    virtual bool                 legacyLoad(UT_IStream &is,
                                            unsigned int numtotal) = 0;

    virtual bool                 save(UT_JSONWriter &w,
                                      const GDT_JSON &json) const = 0;
    virtual bool                 load(UT_JSONParser &p,
                                      const GDT_JSON &json) = 0;
};

#endif