/*
 * MoveModuleOrConnection.cpp
 *
 *  Created on: 2012-10-24
 *      Author: dev
 */

#include <QGraphicsView>
#include <QtDebug>
#include <QGraphicsItem>

#include "MoveModuleCmd.h"
#include "ModuleGraphicsItem.h"
#include "WorkflowSceneManager.h"
#include "ModuleInformation.h"
#include "PaiModuleStyle.h"
#include "GlobalWorkflowItems.h"

using namespace pai;
using namespace pai::graphics2d;

namespace pai
{
	namespace graphics2d
	{

		static const int MoveModuleCmdId = 1;

		MoveModuleCmd::MoveModuleCmd(pai::graphics2d::WorkflowSceneManager *pSceneManager,
				QList<ModuleMovedInfo> moduleMovedInfoList, bool bKeyPressedMove, QUndoCommand *parent)
		:QUndoCommand(parent)
		{
			m_pSceneManager = pSceneManager;
			m_moduleMovedInfoList = moduleMovedInfoList;
			m_bKeyPressedMove = bKeyPressedMove;
		}

		MoveModuleCmd::~MoveModuleCmd()
		{
		}

		void MoveModuleCmd::undo()
		{
			foreach(ModuleMovedInfo movedInfo, m_moduleMovedInfoList)
			{
				ModuleGraphicsItem *pModule = GlobalWorkflowItems::GetInstance()->FindModule(m_pSceneManager, movedInfo.stepId);
				if (!pModule)
				{
					continue;
				}
				pModule->GetModuleStyle()->SetPosition(movedInfo.mousePressPos, pModule);
			}
		}

		void MoveModuleCmd::redo()
		{
			foreach(ModuleMovedInfo movedInfo, m_moduleMovedInfoList)
			{
				ModuleGraphicsItem *pModule = GlobalWorkflowItems::GetInstance()->FindModule(m_pSceneManager, movedInfo.stepId);
				if (!pModule)
				{
					continue;
				}
				pModule->GetModuleStyle()->SetPosition(movedInfo.mouseReleasePos, pModule);
			}
		}

		int MoveModuleCmd::id() const
		{
			if (m_bKeyPressedMove)
			{
				return MoveModuleCmdId;
			}
			else
			{
				return -1;
			}
		}

		bool MoveModuleCmd::mergeWith(const QUndoCommand *other)
		{
			const MoveModuleCmd *pMoveModuleCmd = static_cast<const MoveModuleCmd*>(other);
			if (pMoveModuleCmd->id() != MoveModuleCmdId)
			{
				return false;
			}

			if(m_moduleMovedInfoList.count() != pMoveModuleCmd->m_moduleMovedInfoList.count())
			{
			    return false;
			}

			for (int i = 0; i < m_moduleMovedInfoList.count(); ++i)
			{
				if (m_moduleMovedInfoList.at(i).stepId != pMoveModuleCmd->m_moduleMovedInfoList.at(i).stepId)
				{
					return false;
				}
			}
			for (int i = 0; i < m_moduleMovedInfoList.count(); ++i)
			{
				m_moduleMovedInfoList[i].mousePressPos = pMoveModuleCmd->m_moduleMovedInfoList.at(i).mousePressPos;
				m_moduleMovedInfoList[i].mouseReleasePos = pMoveModuleCmd->m_moduleMovedInfoList.at(i).mouseReleasePos;
			}

			return true;
		}

	}


}