/*
 * CutModuleCmd.cpp
 *
 *  Created on: 2012-10-9
 *      Author: liujunxia
 */

#include <QGraphicsItem>
#include <QtDebug>

#include "CutModuleCmd.h"
#include "CopyModuleCmd.h"
#include "DeleteModuleCmd.h"
#include "WorkflowSceneManager.h"
#include "PaiWorkflowDataModel.h"
#include "GlobalWorkflowItems.h"

using namespace pai::workflow;
using namespace pai::graphics2d;

namespace pai
{
	namespace graphics2d
	{
		CutModuleCmd::CutModuleCmd(pai::graphics2d::WorkflowSceneManager *pSceneManager,
				pai::objectmodel::PaiWorkflowDataModel *pWorkflow, QList<QGraphicsItem*> list, QUndoCommand *parent)
		:QUndoCommand(parent)
		{
			m_pSceneManager = pSceneManager;
			m_pWorkflow = pWorkflow;
			m_list = list;
			m_pDeleteModuleCmd = NULL;
			GlobalWorkflowItems::GetInstance()->Clear();
		}

		CutModuleCmd::~CutModuleCmd()
		{
			if (m_pDeleteModuleCmd != NULL)
			{
				delete m_pDeleteModuleCmd;
				m_pDeleteModuleCmd = NULL;
			}
		}

		void CutModuleCmd::undo()
		{
			if (m_pDeleteModuleCmd)
			{
				m_pDeleteModuleCmd->undo();
			}
		}

		void CutModuleCmd::redo()
		{
			//第一次redo时，备份中的复制item为空，再次redo时，执行此操作
			if(!(GlobalWorkflowItems::GetInstance()->GetCopyGraphicItems().isEmpty()))
			{
				m_pDeleteModuleCmd->redo();
			}
			if (m_list.count() > 0)
			{
				CopyModuleCmd copyModuleCmd(m_pWorkflow, m_list);
				copyModuleCmd.redo();

				m_pDeleteModuleCmd = new DeleteModuleCmd(m_pSceneManager, m_pWorkflow, m_list);
				m_pDeleteModuleCmd->redo();

				m_list.clear();
			}
		}
	}

}