#pragma once

#include <QList>
#include <QUndoCommand>
#include "iPlotBase_global.h"

class ZxRenderItem;

/// 命令: 添加一个图元
class I_PLOTBASE_EXPORT ZxAddCommand : public QUndoCommand
{
public:

    ZxAddCommand(ZxRenderItem* pParent, ZxRenderItem* pItem,  \
                 int nIndex = -1, bool bNeedLayout = true, \
                 QUndoCommand *parent = 0);
    ~ZxAddCommand();

    virtual void redo();
    virtual void undo();

private:

    ZxRenderItem* m_pParent;
    ZxRenderItem* m_pItem;

    int m_nIndex;
    bool m_bAdded : 1;
    bool m_bNeedLayout : 1;
};

/// 命令: 添加多个图元
class I_PLOTBASE_EXPORT ZxAddCommandMulti : public QUndoCommand
{
public:

    ZxAddCommandMulti(ZxRenderItem* pParent, \
                      const QList<ZxRenderItem*>& items, \
                      bool bNeedLayout = true, \
                      QUndoCommand *parent = 0);
    ~ZxAddCommandMulti();

    virtual void redo();
    virtual void undo();

private:

    ZxRenderItem* m_pParent;
    QList<ZxRenderItem*> m_items;

    bool m_bAdded : 1;
    bool m_bNeedLayout : 1;
};

/// 命令: 替换一个图元
class I_PLOTBASE_EXPORT ZxCmdReplace : public QUndoCommand
{
public:

    ZxCmdReplace(ZxRenderItem* pParent, ZxRenderItem* pItem, \
                 int nIndex, bool bNeedLayout = true, \
                 QUndoCommand *parent = 0);
    ~ZxCmdReplace();

    virtual void redo();
    virtual void undo();

private:

    ZxRenderItem* m_pParent;
    ZxRenderItem* m_pItem;

    int m_nIndex;
    bool m_bNeedLayout : 1;
};