GA_RTIRepeater.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:        GA_RTIRepeater.h ( GA Library, C++)
 *
 * COMMENTS:    This is like the "Python" range function.  That is, the end is
 *              non-inclusive:
 *                      GA_RTIRepeater(list, 0, 3) = [0, 1, 2]
 */

#ifndef __GA_RTIRepeater__
#define __GA_RTIRepeater__

#include "GA_API.h"
#include "GA_RangeTypeInterface.h"
#include "GA_Types.h"


class GA_IndexMap;
class GA_IteratorState;
class GA_Range;


class GA_API GA_RTIRepeater : public GA_RangeTypeInterface 
{
public:
    // Range which repeats the @c offset for @c count times
    GA_RTIRepeater(const GA_IndexMap &list, GA_Offset offset, GA_Size count);

    // Copy c-tor
    GA_RTIRepeater(const GA_RTIRepeater &src);
    ~GA_RTIRepeater() override;

    /// @{
    /// RangeTypeInterface implementation
    GA_RangeTypeInterface       *copy() const override;
    bool        isSplittable() const override   { return false; }
    bool        isEmpty() const override;
    GA_Size     getMaxEntries() const override;
    GA_Size     getEntries() const override;
    bool        split(GA_RangeTypeInterface *list[2]) const override;
    bool        isEqual(const GA_RangeTypeInterface &src) const override;
    void        iterateCopy(GA_IteratorState &dest,
                            const GA_IteratorState &src) const override;
    void        iterateRewind(GA_IteratorState &state,
                        GA_Offset &start, GA_Offset &end) const override;
    void        iterateNext(GA_IteratorState &state,
                        GA_Offset &start, GA_Offset &end) const override;
    bool        areTraversalDeletionsSafe() const override { return true; }
    GA_Size     getPageCount() const override   { return -1; }
    bool        getPageElementRange(GA_Range &, GA_Size, GA_Size) const override
                            { return getPageElementRangeNonSplittable(); }
    GA_Offset   getFirstOffsetInPage(GA_Size) const override
                            { return getFirstOffsetInPageNonSplittable(); }
    /// @}

private:
    /// @{
    /// RangeTypeInterface implementation
    virtual void        singleRewind(GA_IteratorState &state) const;
    virtual bool        singleGet(const GA_IteratorState &state,
                                GA_Offset &value) const;
    virtual void        singleNext(GA_IteratorState &state) const;
    /// @}

    GA_Offset           myOffset;
    GA_Size             myCount;
};

#endif