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#ifndef _SVDITER_HXX
#define _SVDITER_HXX

#include <sal/types.h>
#include <tools/list.hxx>
#include "svx/svxdllapi.h"

class SdrObjList;
class SdrObject;
class SdrMarkList;

// SdrObjListIter methods:
// IM_FLAT              : Flat over the list
// IM_DEEPWITHGROUPS    : With recursive descent parser, Next() also returns group objects
// IM_DEEPNOGROUPS      : With recursive descent parser, Next() returns no group objects
enum SdrIterMode { IM_FLAT, IM_DEEPWITHGROUPS, IM_DEEPNOGROUPS};

class SVX_DLLPUBLIC SdrObjListIter
{
    List                        maObjList;
    sal_uInt32                  mnIndex;
    BOOL                        mbReverse;

    void ImpProcessObjectList(const SdrObjList& rObjList, SdrIterMode eMode, BOOL bUseZOrder);
    void ImpProcessMarkList(const SdrMarkList& rMarkList, SdrIterMode eMode);
    void ImpProcessObj(SdrObject* pObj, SdrIterMode eMode, BOOL bUseZOrder);

public:
    SdrObjListIter(const SdrObjList& rObjList, SdrIterMode eMode = IM_DEEPNOGROUPS, BOOL bReverse = FALSE);
    /** This variant lets the user choose the order in which to travel over
        the objects.
        @param bUseZOrder
            When <TRUE/> then the z-order defines the order of iteration.
            Otherwise the navigation position as returned by
            SdrObject::GetNavigationPosition() is used.
    */
    SdrObjListIter(const SdrObjList& rObjList, BOOL bUseZOrder, SdrIterMode eMode = IM_DEEPNOGROUPS, BOOL bReverse = FALSE);

    /* SJ: the following function can now be used with every
       SdrObject and is no longer limited to group objects */
    SdrObjListIter(const SdrObject& rObj, SdrIterMode eMode = IM_DEEPNOGROUPS, BOOL bReverse = FALSE);

    /** Iterates over a list of marked objects received from the SdrMarkView. */
    SdrObjListIter(const SdrMarkList& rMarkList, SdrIterMode eMode = IM_DEEPNOGROUPS, BOOL bReverse = FALSE);

    void Reset() { mnIndex = (mbReverse ? maObjList.Count() : 0L); }
    BOOL IsMore() const { return (mbReverse ? mnIndex != 0 : ( mnIndex < maObjList.Count())); }
    SdrObject* Next() { return (SdrObject*)maObjList.GetObject(mbReverse ? --mnIndex : mnIndex++); }

    sal_uInt32 Count() { return maObjList.Count(); }
};

#endif //_SVDITER_HXX

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