GEO_PrimClassifier.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:        GEO_PrimClassifier.h ( GEO Library, C++)
 *
 * COMMENTS:  This routine classifies primitives according to what
 *            meta-primitive they belong to.  The exact definition of a
 *            meta-primitive depends on the classification done.
 */

#ifndef __GEO_PrimClassifier__
#define __GEO_PrimClassifier__

#include "GEO_API.h"
#include <UT/UT_IntArray.h>
#include <GA/GA_Handle.h>

class GEO_Detail;
class GEO_DetachedHedgeInterface;
class GA_PrimitiveGroup;
class GA_EdgeGroup;

class GEO_API GEO_PrimClassifier
{
public:
    GEO_PrimClassifier()
        : myNumClass(0)
    {}

    void                 classifyByVertexUV(const GEO_Detail &gdp,
                                const GA_ROHandleV3 &attrib,
                                const GA_PrimitiveGroup *exclude_prims=NULL);
    void                 classifyBySharedPoints(const GEO_Detail &gdp,
                                const GA_PrimitiveGroup *exclude_prims=NULL);
    void                 classifyByEdgeCuts(const GEO_Detail &gdp,
                                const GEO_DetachedHedgeInterface &hi,
                                const GA_EdgeGroup *cuts=NULL,
                                const GA_PrimitiveGroup *exclude_prims=NULL);

    int                  getClass(int idx) const
                         { return myClasses((unsigned)idx); }
    int                  getNumClass() const
                         { return myNumClass; }
    const UT_IntArray   &getClassArray() const
                         { return myClasses; }

    int64                getMemoryUsage(bool inclusive) const
                         {
                            int64 mem = inclusive ? sizeof(*this) : 0;
                            mem += myClasses.getMemoryUsage(false);
                            return mem;
                         }

protected:
    // Methods which collapse & search for classes...
    int                  findClass(int idx);

    UT_IntArray          myClasses;
    int                  myNumClass;
};

#endif