134 lines
4.5 KiB
C
134 lines
4.5 KiB
C
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/*
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* @file AddLineCmd.h
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* @brief AddLineCmd是为工作流编辑界面模块添加连线的命令
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* @date: 2012-10-10
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* @author: limengzhuo
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*/
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#ifndef PAI_FRAME_WORKFLOWVIEW_ADDLINECMD_H
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#define PAI_FRAME_WORKFLOWVIEW_ADDLINECMD_H
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#include <QGraphicsItem>
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#include <QUndoCommand>
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#include "ModuleConnection.h"
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namespace pai
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{
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namespace objectmodel
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{
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class PaiWorkflowDataModel;
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}
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namespace graphics2d
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{
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class ModuleGraphicsItem;
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class WorkflowSceneManager;
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}
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/**
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* @class AddLineCmd
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* @brief AddLineCmd是为工作流编辑界面模块添加连线的命令
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*/
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class AddLineCmd :public QUndoCommand
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{
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public:
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/**
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* @brief 构造函数
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* @param[in] pSceneManager 场景
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* @param[in] pWorkflow 工作流
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* @param[in] pStartItem 开始Item
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* @param[in] pEndItem 结束Item
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* @param[in] parent 命令的父亲
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*/
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AddLineCmd(pai::graphics2d::WorkflowSceneManager *pSceneManager,
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pai::objectmodel::PaiWorkflowDataModel *pWorkflow,
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pai::graphics2d::ModuleGraphicsItem *pStartItem,
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pai::graphics2d::ModuleGraphicsItem *pEndItem,
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QUndoCommand *pParent = 0);
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/**
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* @brief 构造函数
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* @param[in] pSceneManager 场景
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* @param[in] pWorkflow 工作流
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* @param[in] pStartItem 开始Item
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* @param[in] pEndItem 结束Item
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* @param[in] nStartPortIndex 开始端口
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* @param[in] nEndPortIndex 结束端口
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* @param[in] parent 命令的父亲
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*/
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AddLineCmd(pai::graphics2d::WorkflowSceneManager *pSceneManager,
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pai::objectmodel::PaiWorkflowDataModel *pWorkflow,
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pai::graphics2d::ModuleGraphicsItem *pStartItem,
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pai::graphics2d::ModuleGraphicsItem *pEndItem,
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int nStartPortIndex,
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int nEndPortIndex,
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QUndoCommand *pParent = 0);
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/**
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* @biref 析构函数
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*/
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virtual ~AddLineCmd();
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/**
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* @brief 撤销操作
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*/
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void undo();
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/**
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* @brief 添加连线操作
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*/
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void redo();
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/**
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*@brief 判断端口连线是否已经存在
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*/
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bool GetPortHasbeenLined();
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/**
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* @brief 设置连线开始模块的stepID
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* @param[in] first 开始模块的stepID
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*/
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void SetFirstStepID(int first);
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/**
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* @brief 设置连线结束模块的stepID
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* @param[in] second 结束模块的stepID
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*/
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void SetSecondStepID(int second);
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private:
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/**
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* @brief 删除添加的连线
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*/
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void RemoveLine();
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/**
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* @brief 添加连线
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*/
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void AddLine();
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/**
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* @brief 检查两模块间是否有生成环路的可能
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* @param[in] pStartItem 期望连线的开始模块
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* @param[in] pEndItem 期望连线的中止模块
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*/
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bool DetectCircle(pai::graphics2d::ModuleGraphicsItem *pStartItem,
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pai::graphics2d::ModuleGraphicsItem *pEndItem);
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private:
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enum AddLineType
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{
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AddLineType_General = 0, //只选定了两个模块添加连线
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AddLineType_Destinated = 1, //选定了两个模块，并明确了起点和终点端口，添加连线的情况
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};
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pai::graphics2d::WorkflowSceneManager *m_pSceneManager; //场景
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pai::objectmodel::PaiWorkflowDataModel* m_pWorkflow; //工作流模型
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workflow::CModuleConnection* m_pConnection; //被添加连线指针
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int m_nStepIdFirst; //开始Item的stepID
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int m_nStepIdSecond; //结束Item的stepID
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int m_nStartPortIndex; //连线起点的端口
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int m_nEndPortIndex; //连线终点的端口
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AddLineType m_type; //连线添加的类型，见AddLineType
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bool m_bPortBeenLined; //端口是否被连线
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};
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}
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#endif /* PAI_FRAME_WORKFLOWVIEW_ADDLINECMD_H */
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