#pragma once
#include "actionitem.h"

namespace NAction
{

//功能同CActionBackupItem类
class CActionModifiedItem : public CActionItem
{
public:
	struct ModifiedEntry
	{
		int64_t id = -1;
		std::unique_ptr<COne> pOldOne = nullptr;
		std::unique_ptr<COne> pNewOne = nullptr;
	};

	CActionModifiedItem();
	CActionModifiedItem(CSigmaDoc * ppDoc, UINT actionType, const CPositionList& list);
	CActionModifiedItem(CSigmaDoc * ppDoc, UINT actionType);
	virtual ~CActionModifiedItem(void);

	std::string GetActionName() const override
	{
		return typeid(*this).name();
	}

	bool IsOwnCOnes() const override
	{
		return true;
	}

	virtual void Undo(void);
	virtual void Redo(void);
	
	void accept(CActionVisitor& visitor) override;

	virtual bool BackupOldItem(POSITION pos, COne* pOne);
	void BackupOldItem(const CPositionList& list);
	void BackupNewItem();

	int GetCount();

	friend class BlobSerializer;
protected:
	virtual void PerformOperation(std::unique_ptr<COne> ModifiedEntry::* member);

	virtual void CloneOne(COne* pDestOne, COne* pSourceOne);
	virtual void AfterRedoUndo(COne* pDestOne);

private:
	void BackupOldOne(COne* pOne);

	void CloneOneAndInvalidate(COne* pOne, const COne* pActionOne);

	std::vector<ModifiedEntry> m_entries;
};

//为了减少占用的内存，特将网格文件的独立出来，这样在修改其参数后不用备份网格数据
class CActionModifiedMesh :
	public CActionModifiedItem
{
public:
	CActionModifiedMesh(CSigmaDoc * ppDoc, UINT actionType, const CPositionList& list);
	CActionModifiedMesh(CSigmaDoc * ppDoc, UINT actionType);
	CActionModifiedMesh();
	virtual ~CActionModifiedMesh(void);

	std::string GetActionName() const override
	{
		return typeid(*this).name();
	}
	
	void accept(CActionVisitor& visitor) override;

protected:
	virtual void CloneOne(COne* pDestOne, COne* pSourceOne);
	virtual void AfterRedoUndo(COne* pDestOne);
};

};//namespace