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NodeDataModel.hpp
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147 lines (106 loc) · 2.36 KB
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#pragma once
#include <memory>
#include <QtWidgets/QWidget>
#include "PortType.hpp"
#include "NodeData.hpp"
#include "Serializable.hpp"
#include "NodeGeometry.hpp"
#include "NodeStyle.hpp"
#include "NodePainterDelegate.hpp"
#include "Export.hpp"
namespace QtNodes
{
enum class NodeValidationState
{
Valid,
Warning,
Error
};
class StyleCollection;
class NODE_EDITOR_PUBLIC NodeDataModel
: public QObject
, public Serializable
{
Q_OBJECT
public:
NodeDataModel();
virtual
~NodeDataModel() = default;
/// Caption is used in GUI
virtual QString
caption() const = 0;
/// It is possible to hide caption in GUI
virtual bool
captionVisible() const { return true; }
/// Port caption is used in GUI to label individual ports
virtual QString
portCaption(PortType, PortIndex) const { return QString(); }
/// It is possible to hide port caption in GUI
virtual bool
portCaptionVisible(PortType, PortIndex) const { return false; }
/// Name makes this model unique
virtual QString
name() const = 0;
/// Function creates instances of a model stored in DataModelRegistry
virtual std::unique_ptr<NodeDataModel>
clone() const = 0;
public:
QJsonObject
save() const override;
public:
virtual
unsigned int nPorts(PortType portType) const = 0;
virtual
NodeDataType dataType(PortType portType, PortIndex portIndex) const = 0;
public:
enum class ConnectionPolicy
{
One,
Many,
};
virtual
ConnectionPolicy
portOutConnectionPolicy(PortIndex) const
{
return ConnectionPolicy::Many;
}
NodeStyle const&
nodeStyle() const;
void
setNodeStyle(NodeStyle const& style);
public:
/// Triggers the algorithm
virtual
void
setInData(std::shared_ptr<NodeData> nodeData,
PortIndex port) = 0;
virtual
std::shared_ptr<NodeData>
outData(PortIndex port) = 0;
virtual
QWidget *
embeddedWidget() = 0;
virtual
bool
resizable() const { return false; }
virtual
NodeValidationState
validationState() const { return NodeValidationState::Valid; }
virtual
QString
validationMessage() const { return QString(""); }
virtual
NodePainterDelegate* painterDelegate() const { return nullptr; }
signals:
void
dataUpdated(PortIndex index);
void
dataInvalidated(PortIndex index);
void
computingStarted();
void
computingFinished();
private:
NodeStyle _nodeStyle;
};
}