/*
 *@file    ZoomOutCmd.h
 *@brief   Zoom out模块
 *@date    2014-8-21
 */

#ifndef PAI_FRAME_WORKFLOWVIEW_ZOOMOUTCMD_H_
#define PAI_FRAME_WORKFLOWVIEW_ZOOMOUTCMD_H_

#include <QGraphicsView>
#include <QUndoCommand>

namespace pai
{
    /**
     * @class ZoomOutCmd
     * @brief 缩小工作流中的模块
     */
    class ZoomOutCmd :public QUndoCommand
    {
    public:
    	ZoomOutCmd(QGraphicsView *view, QUndoCommand *parent = 0);
        virtual ~ZoomOutCmd();
        /**
         * @brief undo 操作
         */
        void undo();
        /**
         * @brief redo 操作
         */
        void redo();

    private:
        QGraphicsView *m_pView;
    };
}

#endif /* ZOOMOUTCMD_H_ */