DiagramDesigner/common/include/global.h

#ifndef GLOBAL_H
#define GLOBAL_H

#include <QGraphicsItem>
#include <QtCore/QMetaObject>
#include <QtSwap>
#include <QHash>
#include <QUuid>
#include <QJsonObject>
#include <QWidget>
#include <QStandardItemModel>
#include "tools.h"

const double g_dGriaphicsScene_Width = 800;
const double g_dGriaphicsScene_Height = 600;

const int g_dEditorItem_Width = 150;
const int g_dEditorItem_Height = 80;

const int g_nEditorBus_Height = 10;

const int g_nVDiagramSpacing = 50;
const int g_nHDiagramSpacing = 50;

//Q_NAMESPACE
enum GraphicsItemType
{
    GIT_base = QGraphicsItem::UserType + 1,
    GIT_line = QGraphicsItem::UserType + 2,
    GIT_rect = QGraphicsItem::UserType + 3,
    GIT_roundRect = QGraphicsItem::UserType + 4,
    GIT_ellipse = QGraphicsItem::UserType + 5,
    GIT_polygon = QGraphicsItem::UserType + 6,
    //======================================
    GIT_bus = QGraphicsItem::UserType + 50,
    GIT_itemRect = QGraphicsItem::UserType + 51,
    GIT_itemTri = QGraphicsItem::UserType + 52,
    GIT_link= QGraphicsItem::UserType + 53,
    GIT_bay= QGraphicsItem::UserType + 54,      //间隔
    //======================================
    GIT_baseNode = QGraphicsItem::UserType + 199,
    GIT_baseBus = QGraphicsItem::UserType + 200,
    GIT_baseLine = QGraphicsItem::UserType + 201,
    GIT_baseBreaker = QGraphicsItem::UserType + 202,
    GIT_baseCT = QGraphicsItem::UserType + 203,
    GIT_basePT = QGraphicsItem::UserType + 204,
    GIT_baseDS = QGraphicsItem::UserType + 205,
    GIT_baseES = QGraphicsItem::UserType + 206,
    GIT_basePI = QGraphicsItem::UserType + 207,     //带电指示器
    GIT_base2wTransformer = QGraphicsItem::UserType + 208,      //两绕阻变压器
    GIT_base3wTransformer = QGraphicsItem::UserType + 209,      //三绕组变压器
};

enum AbstractItemType       //工程模关联的对象类型
{
    AIT_motor = 1,
    AIT_bus
};

enum class ModelFunctionType        //模型函数的类型
{
    ProjectModel = 0,
    BaseModel,
    EditorModel,
    BlockEditorModel        //模块划分时的连接关系
};


extern const QMap<AbstractItemType,GraphicsItemType> linkType;
//类型转换
extern const QMap<int,GraphicsItemType> typeToProGraphic;

enum DiagramMode        //组态图模式
{
    DM_edit = 0,
    DM_run,
    DM_academic,
    DM_baseModel
};

enum VariantIcon     //变种图
{
    VI_thumbnail = 0,
    VI_normal_1,
    VI_normal_2,
    VI_normal_3,
    VI_normal_4,
    VI_normal_5
};

enum Attribute      //元模属性字段对照
{
    Id = Qt::UserRole + 1,
    Attribute = Qt::UserRole + 2,
    AttributeName = Qt::UserRole + 3,
    DataType = Qt::UserRole + 4,
    LengthPrecision = Qt::UserRole + 5,
    Scale = Qt::UserRole + 6,
    IsNotNull = Qt::UserRole + 7,
    DefaultValue = Qt::UserRole + 8,
    ValueRange = Qt::UserRole + 9,
    IsVisible = Qt::UserRole + 10
};

enum TableDelegateContent       //代理内容
{
    TD_ProjectModel = 0,        //工程模
    TD_MetaModel,               //基模
    TD_ComponentType            //元件类型
};

enum SelectorDialogType         //选择dialog类型
{
    ST_MetaModel = 0,           //元模对话框
    ST_ComponentType            //元件选择
};

enum TableItemState         //工程模table操作的对象状态
{
    TS_create = 1,
    TS_select = 2,
    TS_edit = 4
};

enum class AlertInfo        //警告提示信息
{
    success = 1,
    fail = 2,
    exist = 4
};

struct attributeGroup       //属性组(元模)
{
    int     id = 0;
    QString groupType;
    QString groupName;
    int     ispublic = -1;
    QString remark;
};

struct dataType             //数据类型(元模)
{
    int     id = 0;
    QString dataType;
    QString databaseType;
};

struct modelType            //模型类型
{
    int     id = 0;
    QString modelType;
    QString modelName;
    int     graphicEelement;        //类型
    QByteArray icon;                //图片
    QString remark;
};

struct modelGroup
{
    int        id = 0;
    qint64     modelTypeId = 0;
    qint64     attributeGroupId = 0;
};

struct attribute            //属性表(元模属性字段)
{
    int     id = 0;
    QString attribute;      //属性名
    QString attributeName;  //别名(中文名)
    qint64  dataTypeId = 0;       //数据类型id
    int     lengthPrecision=0;  //长度限制(varchar)
    int     scale=0;            //小数点位数
    int     isNotNull=0;        //是否非空
    QString defaultValue;       //默认值
    QString valueRange;         //数值范围
    int     isVisible = 1;
};

struct modelAttribute       //模型属性表(所有模型属性的索引)
{
    int     id = 0;
    qint64  modelTypeId = 0;
    qint64  attributeGroupId = 0;
    qint64  attributeId = 0;
};

struct modelAttributePublic       //公共属性表
{
    int     id = 0;
    qint64  attributeGroupId = 0;
    qint64  attributeId = 0;
};

struct  modelConnectivity   //模型连接性表(元模是否可以连接)
{
    int     id = 0;
    QString fromModel;      //属性名
    QString toModel;
    int     connectivity=0; //是否可连
};

//=====================================
struct projectManager       //工程模管理类
{
    int     id = 0;
    QString name;           //工程模表名
    QString tag;            //工程模名称
    QString metaModel;      //元模名
    QString groupName;      //属性组名
    int     linkType;       //图元链接类型
    QJsonObject checkState; //属性选择状态
};

struct projectModelSetting  //工程模设定类，如图标
{
    QString modelName;      //工程模名
    QMap<QString,QByteArray>    mapSvg;     //存放选择的svg图片
};

/*struct baseModelSelectManger
{
    int     id = 0;
    QUuid   componentId;
    QString componentTag;
    int     pageId;
    int     version;
    QJsonObject checkState;
};*/

enum projectState
{
    Err = -1,
    NotExist = 0,
    Exist,
    Changed
};

struct FormerName           //曾用名,记录修改前名称
{
    QString     sName;
    bool        bChanged = false;           //是否改变过
};

struct PropertyState            //每个属性的状态
{
    bool        checkState = false;
    QString     dataType;
    bool        editable = true;        //可勾选状态
};

struct PropertyPage          //属性信息
{
    QMap<QString,PropertyState>      mCheckState;        //属性选择状态
    bool        isPublic = false;
};

typedef QMap<QString,PropertyPage> MapProperty;       //属性组
struct PropertyModel          //工程模
{
    MapProperty     mapProperty;
    int             nType = 0;              //工程模类型，选择图标后确定
    QStandardItemModel*     pBase = nullptr;          //基础属性
    QStandardItemModel*     pSelect = nullptr;        //已选择属性
    FormerName              formerMeta;     //曾用元模名
    FormerName              formerProject;  //曾用工程模名     
    QMap<QString,projectManager>    dataInfo;   //存放数据库内容
    projectModelSetting             modelSetting;
    PropertyModel deepCopy()        //深拷贝
    {
        PropertyModel copy;
        copy.mapProperty = mapProperty;
        copy.pBase = deepCloneModel(pBase);
        copy.pSelect = deepCloneModel(pSelect);
        copy.formerMeta = formerMeta;
        copy.formerProject = formerProject;
        copy.dataInfo = dataInfo;
        copy.modelSetting = modelSetting;
        return copy;
    }
    void release()
    {
        delete pBase;
        delete pSelect;
        pBase = nullptr;
        pSelect = nullptr;
    }
};
typedef QMap<QString,PropertyModel>   MapProject;     //str为工程名，PropertyModel为工程属性
typedef QMap<QString,MapProject>    MapMeta;        //str为元模名,PropertyModel为工程模集

//=====================================
struct propertyGroupState    //模型属性组信息
{
    QString groupName;      //属性组名称
    QString tableName;      //属性组表名
    QJsonObject propertyState;  //属性状态信息
};

//================工程模使用======================

struct propertyStateInfo    //属性
{
    QString name;       //属性名
    QString tagName;    //别名
    QString type;       //属性类型
    QVariant defaultValue;   //默认值
    int lengthPrecision = 999;  //长度限制
    int isVisibe = 1;   //是否可见（0：不可见,1:可见,2:特殊项）
    bool lock = false;  //值手动改变时置true，下次保存时恢复
};

Q_DECLARE_METATYPE(propertyStateInfo);

typedef QMap<QString,propertyStateInfo> PropertyValueInfo;

struct groupStateInfo       //属性组(结构信息)
{
    QString groupName;      //组名
    QString tableName;      //表名
    bool isPublic = false;;
    PropertyValueInfo info;       //属性信息
};

struct groupStateValue      //属性组(实时数据)
{
    QString groupName;      //组名
    QString tableName;      //表名
    QMap<QUuid,PropertyValueInfo> mapInfo;
};

struct modelStateInfo     //模型结构信息
{
    QString modelName;
    int     modelType;
    QWidget*    _PropertyDlg = NULL;        //属性设置界面，每个模型维护一种界面
    QMap<QString,groupStateInfo> groupInfo;      //属性组信息
    void release()
    {
        if(_PropertyDlg)
            delete _PropertyDlg;
    }
};

struct modelDataInfo   //模型数据信息
{
    QString modelName;
    int     modelType;
    QMap<QString,groupStateValue> groupInfo;      //属性组实时信息
};

struct propertyContentInfo      //单个属性结构
{
    QString proName;        //名称
    QString proType;        //类型
    QWidget* proEditer = NULL;      //编辑窗口对象
};

struct measureAttributeType     //量测可用属性类型(从基模获取的占位符变量)
{
    QString tag;
    QString name;
};
//==================组态拓扑结构======================
enum class DataState
{
    unchanged = 0,
    changed,
    prepareDelete
};
/*struct diagramInfo
{
    QString name;
    QString uuid;
    QMap<QString,diagramInfo> childMap;
};

struct stationInfo
{
    QString stationName;
    QString uuid;
    QMap<QString,diagramInfo> diagramMap;
};

struct zoneInfo
{
    QString zoneName;
    QString uuid;
    QMap<QString,stationInfo> stationMap;
};

struct gridInfo         //grid
{
    QString gridName;
    QString uuid;
    QMap<QString,zoneInfo> zoneMap;
};*/
//===================组态编辑器使用================
const int g_transformerLevel = 999;     //层级结构中变压器所处层级

struct DiagramEditorWizardBusInfo            //组态编辑母线信息
{
    int nIndex = 0;
    double dVoltage = 0;        //电压等级
    int nLineType = 1;          //1单母线，2双母线
    int nNum1 = 0;      //1母
    int nNum2 = 0;      //2母
    int connectType = 0;        //接线方式，1为分段连接
    bool bChanged = false;      //是否改变
};

enum class TransformerType      //变压器类型
{
    twoWinding = 0,     //两绕组
    threeWinding        //三绕组
};

enum class BayType      //间隔类型
{
    busSectionBay = 0,      //分段
    busCouplerBay,          //母联
    ptBay,                  //pt
    incomingBay,        //进线
    outcomingBay,       //出线
    compensationBay,    //无功补偿
    bypassBay,          //旁路
    mainTransformerBay  //主变
};

enum class EditorItemType       //组态编辑中的图形项类型
{
    bus = 1,        //母线
    bay,            //间隔
    trans,           //变压器
    line,           //连接线
    none            //空白占位图
};

struct EditorTransConnection        //组态变压器连接信息
{
    QString sName;
    int     nPara = 0;      //012,高中低侧
};

struct DiagramEditorWizardTransformerInfo           //组态变压器信息
{
    QString sName;
    TransformerType     nType;
    QList<EditorTransConnection>  lstBindObj;             //连接的对象
};

struct DiagramEditorWizardBayInfo           //组态间隔信息
{
    QString sName;
    BayType     nType;
    QList<QString>  lstBindObj;             //连接的对象
};

struct DiagramEditorComponentInfo            //组态设备信息
{
    int nCategory = 0;      //分类    0电气设备1连接关系
    QString sName;
    int nType = 0;          //类型    1母线2异步电动机3断路器4电缆5电流互感器6电压互感器7隔离开关8接地开关9快速接地开关10双掷接地隔离开关11带电指示器12避雷器13电缆出线套筒14电缆端
    QString sBindObj;   //所关联的实体名 (母线block,间隔block)
    int nBindType = 0;      //关联实体的类型 1母线2间隔3变压器
    QStringList sUsedRoute;     //使用设备的线路名
    int nUsedDirection = 0;     //被占用的方向 8421 上下左右
    QPoint  deltaPos = QPoint(0,0);     //相对坐标(相对间隔)
    QUuid uid;
    int nFlag = 0;      //标志0未使用1新建2修改
    int nRotate = 0;    //旋转角

    bool operator ==(const DiagramEditorComponentInfo& obj) const {
        if(nCategory == obj.nCategory && sName == obj.sName && nType == obj.nType && sBindObj == obj.sBindObj && nBindType == obj.nBindType &&
            sUsedRoute == obj.sUsedRoute && nUsedDirection == obj.nUsedDirection && deltaPos == obj.deltaPos && uid == obj.uid && nFlag == obj.nFlag && nRotate == obj.nRotate)
            return true;
        else
            return false;
    }
};

struct DiagramEditorRouteInfo            //间隔中单条线路信息
{
    QString sRouteName;
    bool bMainRoute = false;                //主线路(包含设备最多的线路，决定整体布局)
    QList<DiagramEditorComponentInfo>  lstCompo;
    QList<DiagramEditorComponentInfo>  lstOrder;        //线路顺序容器(计算用)
    QList<DiagramEditorComponentInfo>  lstReverse;      //逆序容器(计算用)
};

struct DiagramEditorBayInfo             //组态编辑间隔信息
{
    QString name;
    int     nLayout;                //布局    0纵向1横向
    QMap<QString,DiagramEditorRouteInfo>    mapRoute;       //线路信息
    QMap<QString,DiagramEditorComponentInfo>    mapComponent;       //设备信息
};

enum class DiagramEditorStructType
{
    block = 0,          //模块(母线段、间隔、变压器)
    blockContainer, //模块容器(包含若干模块)
    rowData         //行数据(包含若干容器)
};

struct DiagramEditorConnectType               //组态编辑连接信息
{
    QString sName;
    int     nType = 0;      //1母线，2间隔,3变压器
};

struct DiagramEditorBriefConnect              //组态编辑时连接信息
{
    QUuid                        uid;
    DiagramEditorConnectType     con1;
    DiagramEditorConnectType     con2;
    int                          nPara = 0;         //万用参数(变压器中表示连接位置,0高压侧，1中压侧，2低压侧)

    bool operator==(const DiagramEditorBriefConnect& obj)
    {
        if(this == &obj)
            return false;
        if((con1.sName == obj.con1.sName && con2.sName == obj.con2.sName)||(con1.sName == obj.con2.sName && con2.sName == obj.con1.sName))
            return true;
        else
            return false;
    }

    DiagramEditorConnectType getOpposite(const QString& s){          //获取另一端名称
        if(con1.sName == s)
            return con2;
        else if(con2.sName == s)
            return con1;
        return DiagramEditorConnectType();
    }
};

//==================组态图使用=====================
enum HandleType
{
    T_none = 0,
    T_resize, //调整大小
    T_rotate, //旋转
    T_editShape, //编辑形状
    T_text,    //文本
    T_lineIn, //入线口
    T_lineOut, //出线口
    T_lineInOut, //双端线
    T_newTral   //中性点
};

enum HandleTag
{
    H_none = 0,
    H_leftTop,
    H_top,
    H_rightTop,
    H_right,
    H_rightBottom,
    H_bottom,
    H_leftBottom,
    H_left, //8
    H_rotate_leftTop,
    H_rotate_rightTop,
    H_rotate_rightBottom,
    H_rotate_leftBottom, //12
    H_edit,
    H_textCaption = 40, //标题文本
    H_textCurrent,      //电流
    h_textVoltage,      //电压
    H_connect = 50      //连接操作点从50开始，前面预留
};

enum PortPos
{
    P_top = 0,
    P_down,
    P_left,
    P_right
};

struct Connection
{
    QUuid nSrcNodeId;
    QUuid nSrcPortId;
    HandleType srcType;
    PortPos    srcPos;
    QUuid nDestNodeId;
    QUuid nDestPortId;
    HandleType destType;
    PortPos destPos;

    Connection()
    {
        srcType = T_none;
        srcPos = P_top;
        destType = T_none;
        destPos = P_top;
        nSrcNodeId = QUuid();
        nSrcPortId = QUuid();
        nDestNodeId = QUuid();
        nDestPortId = QUuid();
    }

    Connection(const Connection& obj)
    {
        nSrcNodeId = obj.nSrcNodeId;
        nSrcPortId = obj.nSrcPortId;
        srcType = obj.srcType;
        srcPos = obj.srcPos;
        nDestNodeId = obj.nDestNodeId;
        nDestPortId = obj.nDestPortId;
        destType = obj.destType;
        destPos = obj.destPos;
    }

    Connection(QUuid nSNI,QUuid nSPI,HandleType sT,PortPos sPOS,QUuid nDNI,QUuid nDPI,HandleType dT,PortPos dPOS)
    {
        nSrcNodeId = nSNI;
        nSrcPortId = nSPI;
        srcType = sT;
        srcPos = sPOS;
        nDestNodeId = nDNI;
        nDestPortId = nDPI;
        destType = dT;
        destPos = dPOS;
    }
    bool operator==(const Connection& obj)
    {
        return ((nSrcNodeId == obj.nSrcNodeId)&&(nSrcPortId == obj.nSrcPortId)&&(srcType == obj.srcType)&&(nDestNodeId == obj.nDestNodeId)&&(nDestPortId == obj.nDestPortId)&&(destType == obj.destType));
    }

    Connection& operator=(const Connection& obj)
    {
        if(this == &obj)
            return *this;
        nSrcNodeId = obj.nSrcNodeId;
        nSrcPortId = obj.nSrcPortId;
        srcType = obj.srcType;
        srcPos = obj.srcPos;
        nDestNodeId = obj.nDestNodeId;
        nDestPortId = obj.nDestPortId;
        destType = obj.destType;
        destPos = obj.destPos;
        return *this;
    }
};

// 基础实体类型（电力元素或组态图）
enum class EntityType {
    Grid,
    Zone,
    Station,
    ConfigurationDiagram,
    Component };

struct EntityInfo
{
    QString sName;
    QString sUuid;
    QString sParentId;
    EntityType eType;
};

struct DiagramInfo      //组态图结构信息
{
    QVariant id;        //临时id使用uuid，load数据使用数据库自增id
    QString sName;
    QString sTag;
    QVariant parentId;
    QString sBasePageName;  //基模组态图名称
};

struct DiagramContent {
    QString diagramId;  // 对应的PowerEntity ID

    // 元素位置信息 <元素ID, 位置>
    QHash<QString, QPointF> elementPositions;
    //QHash<QString, QColor> connectionColors; // <连接ID, 显示颜色>
    QHash<QString, QList<QPointF>> connectionPaths; // 自定义路径点
};

struct PtExtraInfo
{
    int id;
    QString transRatio;     //变比
    QString accuracyClass;  //精度等级
    QString secondaryLoadCapacity;  //二次负载容量
    QString windingConnectionMethod;    //绕组接法
};

struct CtExtraInfo
{
    int id;
    QString transRatio;     //变比
    QString accuracyClass;  //精度等级
    QString secondaryLoadCapacity;  //二次负载容量
};

struct MeasurementInfo      //量测
{
    QString tag;        //量测tag
    QString name;       //量测名称
    QString equipment;  //设备名称
    QString channel;    //设备端子
    QString type;       //量测类型
    int     size;       //量测size
    QUuid   bayUuid;    //所属间隔
    QUuid   componentUuid;  //所属设备
};

//==================================================
struct baseComponentInfo            //基模图元数据
{
    int id = 0;
    QUuid uuid;
    QString name;
    QString tag;
    int typeId = 0;
    QJsonObject context;
    QString metaMmodel;
    QString projectModel;
};
//==================================================

struct componentInfo            //工程模图元数据
{
    QUuid uuid;
    QString modelName;
    QString nspath;
    QString tag;
    QString name;
    QString description;
    QString grid;
    QString zone;
    QString station;
    int type = 0;
    bool inService = true;
    int state = 0;
    QJsonObject connected_bus;
    QJsonObject label;
    QJsonObject context;
    int op = 0;
};

struct componentTypeInfo        //元件类型
{
    int id = 0;
    QString type;
    QString name;
    QJsonObject config;
};

struct topologicInfo
{
    int id = -1;
    QUuid uuid_from;
    QUuid uuid_to;
    QJsonObject context;
    int flag;
    QString description;
    int op;
};

struct pageInfo
{
    int id = -1;
    QString tag;
    QString name;
    QJsonObject label;
    QJsonObject context;
    QString description;
    int op;
};

struct gridInfo
{
    int id = -1;
    QString name;
    QString description;
};

struct zoneInfo
{
    int id = -1;
    int grid_id = -1;
    QString name;
    QString description;
};

struct stationInfo
{
    int id = -1;
    int zone_id = -1;
    QString name;
    QString description;
    bool is_local = true;
};

struct bayInfo
{
    QUuid uuid;
    QString name;
    QString type;
    double unom;
    double fla;
    double capacity;
    QString description;
    bool inService;
    int nState;
    QString grid;
    QString zone;
    QString station;
    QJsonObject business;
    QJsonObject fromUuid;
    QJsonObject toUuid;
    QJsonObject protect;
    QJsonObject faultRec;
    QJsonObject status;
    QJsonObject dynSense;
    QJsonObject instruct;
    QJsonObject etc;
    QJsonObject context;
    QList<QUuid> components;
};


/*struct busStability
{
    int componentId = 0;
    double resistance = 0;
    bool anchor_v = false;
    double uv_alarm = 0;
    double ov_alarm = 0;
    bool anchor_i = false;
    double ui_alarm = 0;
    double oi_alarm = 0;
};*/
//Q_ENUM_NS(GraphicsItemType)

/**
 * Constants used for fetching QVariant data from GraphModel.
 */
enum class NodeRole {
    Type = 0,           ///< Type of the current node, usually a string.
    Position = 1,       ///< `QPointF` positon of the node on the scene.
    Size = 2,           ///< `QSize` for resizable nodes.
    CaptionVisible = 3, ///< `bool` for caption visibility.
    Caption = 4,        ///< `QString` for node caption.
    Style = 5,          ///< Custom NodeStyle as QJsonDocument
    InternalData = 6,   ///< Node-stecific user data as QJsonObject
    InPortCount = 7,    ///< `unsigned int`
    OutPortCount = 9,   ///< `unsigned int`
    Widget = 10,        ///< Optional `QWidget*` or `nullptr`
};
//Q_ENUM_NS(NodeRole)

/**
 * Specific flags regulating node features and appeaarence.
 */
enum NodeFlag {
    NoFlags = 0x0,   ///< Default NodeFlag
    Resizable = 0x1, ///< Lets the node be resizable
    Locked = 0x2
};

Q_DECLARE_FLAGS(NodeFlags, NodeFlag)
//Q_FLAG_NS(NodeFlags)
Q_DECLARE_OPERATORS_FOR_FLAGS(NodeFlags)

/**
 * Constants for fetching port-related information from the GraphModel.
 */
enum class PortRole {
    Data = 0,                 ///< `std::shared_ptr<NodeData>`.
    DataType = 1,             ///< `QString` describing the port data type.
    ConnectionPolicyRole = 2, ///< `enum` ConnectionPolicyRole
    CaptionVisible = 3,       ///< `bool` for caption visibility.
    Caption = 4,              ///< `QString` for port caption.
};
//Q_ENUM_NS(PortRole)

/**
 * Defines how many connections are possible to attach to ports. The
 * values are fetched using PortRole::ConnectionPolicy.
 */
enum class ConnectionPolicy {
    One,  ///< Just one connection for each port.
    Many, ///< Any number of connections possible for the port.
};
//Q_ENUM_NS(ConnectionPolicy)

/**
 * Used for distinguishing input and output node ports.
 */
enum class PortType {
    In = 0,  ///< Input node port (from the left).
    Out = 1, ///< Output node port (from the right).
    None = 2
};
//Q_ENUM_NS(PortType)

enum PortState
{
    P_const = 0,        //固定端口
    p_movable,          //移动端口
};

using PortCount = int;

/// ports are consecutively numbered starting from zero.
using PortIndex = int;

const PortIndex InvalidPortIndex = -1;

/// Unique Id associated with each node in the GraphModel.
using NodeId = int;

const NodeId InvalidNodeId = -1;

/**
 * A unique connection identificator that stores
 * out `NodeId`, out `PortIndex`, in `NodeId`, in `PortIndex`
 */
struct ConnectionId
{
    int conId;
    NodeId outNodeId;
    PortIndex outPortIndex;
    NodeId inNodeId;
    PortIndex inPortIndex;
};

inline uint qHash(const ConnectionId &data, uint seed){

    return data.conId;
}

inline bool operator<(ConnectionId const &a, ConnectionId const &b)
{
    return a.conId<b.conId;
}

inline bool operator==(ConnectionId const &a, ConnectionId const &b)
{
    return a.outNodeId == b.outNodeId && a.outPortIndex == b.outPortIndex
           && a.inNodeId == b.inNodeId && a.inPortIndex == b.inPortIndex;
}

inline bool operator!=(ConnectionId const &a, ConnectionId const &b)
{
    return !(a == b);
}

inline void invertConnection(ConnectionId &id)
{
    qSwap(id.outNodeId, id.inNodeId);
    qSwap(id.outPortIndex, id.inPortIndex);
}

#endif