#pragma once

#include "iPlotBase_global.h"
#include <QCursor>

class ZxRenderItem;
class ZxHandlePolicy;

/// 控制点的引用
class I_PLOTBASE_EXPORT ZxHandleRef
{
public:

    ZxHandleRef();
    ZxHandleRef(ZxHandlePolicy* p, int nHandleId);
    ZxHandleRef(const ZxHandleRef& c);

    bool operator==(const ZxHandleRef& c) const;
    bool operator!=(const ZxHandleRef& c) const;

    bool isValid() const;
    void clear();

    ZxRenderItem* item() const;
    ZxHandlePolicy* policy() const;
    int id() const;
    QCursor cursor() const;

private:

    ZxRenderItem* _item;
    ZxHandlePolicy* _policy;
    int _id;
};