168 lines
2.8 KiB
C++
168 lines
2.8 KiB
C++
#pragma once
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#include <QtCore/QObject>
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#include <QtCore/QUuid>
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#include <QtCore/QVariant>
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#include "PortType.hpp"
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#include "NodeData.hpp"
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#include "Serializable.hpp"
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#include "ConnectionState.hpp"
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#include "ConnectionGeometry.hpp"
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#include "TypeConverter.hpp"
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#include "QUuidStdHash.hpp"
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#include "Export.hpp"
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#include "memory.hpp"
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class QPointF;
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namespace QtNodes
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{
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class Node;
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class NodeData;
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class ConnectionGraphicsObject;
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/**
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* \brief 节点连接线
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*/
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class Connection
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: public QObject
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, public Serializable
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{
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Q_OBJECT
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public:
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/// 新的连接对象会连接到目标节点，连接的端口应当有 端口类型，端口序号
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/// 连接对象的另一端应当是相反的端口。
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Connection(PortType portType,
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Node& node,
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PortIndex portIndex);
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Connection(Node& nodeIn,
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PortIndex portIndexIn,
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Node& nodeOut,
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PortIndex portIndexOut,
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TypeConverter converter =
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TypeConverter{});
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Connection(const Connection&) = delete;
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Connection operator=(const Connection&) = delete;
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~Connection();
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public:
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QJsonObject
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save() const override;
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public:
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QUuid
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id() const;
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/// Remembers the end being dragged.
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/// Invalidates Node address.
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/// Grabs mouse.
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void
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setRequiredPort(PortType portType);
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PortType
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requiredPort() const;
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void
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setGraphicsObject(std::unique_ptr<ConnectionGraphicsObject>&& graphics);
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/// Assigns a node to the required port.
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/// It is assumed that there is a required port, no extra checks
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void
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setNodeToPort(Node& node,
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PortType portType,
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PortIndex portIndex);
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void
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removeFromNodes() const;
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public:
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ConnectionGraphicsObject&
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getConnectionGraphicsObject() const;
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ConnectionState const&
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connectionState() const;
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ConnectionState&
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connectionState();
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ConnectionGeometry&
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connectionGeometry();
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ConnectionGeometry const&
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connectionGeometry() const;
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Node*
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getNode(PortType portType) const;
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Node*&
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getNode(PortType portType);
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PortIndex
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getPortIndex(PortType portType) const;
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void
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clearNode(PortType portType);
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NodeDataType
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dataType(PortType portType) const;
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void
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setTypeConverter(TypeConverter converter);
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bool
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complete() const;
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public: // data propagation
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void
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propagateData(std::shared_ptr<NodeData> nodeData) const;
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void
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propagateEmptyData() const;
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Q_SIGNALS:
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void
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connectionCompleted(Connection const&) const;
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void
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connectionMadeIncomplete(Connection const&) const;
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private:
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QUuid _uid;
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private:
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Node* _outNode = nullptr;
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Node* _inNode = nullptr;
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PortIndex _outPortIndex;
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PortIndex _inPortIndex;
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private:
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ConnectionState _connectionState;
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ConnectionGeometry _connectionGeometry;
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std::unique_ptr<ConnectionGraphicsObject>_connectionGraphicsObject;
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TypeConverter _converter;
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Q_SIGNALS:
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void
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updated(Connection& conn) const;
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};
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}
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