SIM/SIM_PointMapping.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.
 *
 * Produced by:
 *      Jeff Lait
 *      Side Effects Software Inc
 *      477 Richmond Street West
 *      Toronto, Ontario
 *      Canada   M5V 3E7
 *      416-504-9876
 *
 * NAME:        SIM_PointMapping.h ( SIM Library, C++)
 *
 * COMMENTS: 
 *      This class builds a mapping from some point attribute value to
 *      the point number that has that attribute value.
 */

#ifndef __SIM_PointMapping_h__
#define __SIM_PointMapping_h__

#include "SIM_API.h"
#include <UT/UT_HashTable.h>
#include "SIM_DataUtils.h"
#include "SIM_OptionsUser.h"

/// This class holds a mapping from some point attribute to point numbers
/// on the parent geometry data. The attribute must be a single integer.
class SIM_API SIM_PointMapping : public SIM_Data,
                                 public SIM_OptionsUser
{
public:
    /// The name of the attribute to use for our mapping.
    GETSET_DATA_FUNCS_S(SIM_NAME_ATTRIBUTENAME, AttributeName);

    /// The name of the attribute to map.
    int                  getPointWithAttributeValue(int attribvalue) const;

protected:
    explicit             SIM_PointMapping(const SIM_DataFactory *factory);
    virtual             ~SIM_PointMapping();

    virtual void         initializeSubclass();
    virtual int64        getMemorySizeSubclass() const;
    virtual bool         getIsAlternateRepresentationSubclass() const;
    virtual void         initAlternateRepresentationSubclass(const SIM_Data &);

private:
    UT_HashTable         myMapping;

    DECLARE_STANDARD_GETCASTTOTYPE();
    DECLARE_DATAFACTORY(SIM_PointMapping,
                        SIM_Data,
                        "Point Mapping",
                        getEmptyDopDescription());
};

#endif

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