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#pragma once
#include <QtCore/QObject>
#include <functional>
#include <iostream>
#include <nodes/NodeDataModel>
#include <type_traits>
class ExpressionRangeData;
class QWidget;
class QLineEdit;
class QComboBox;
using QtNodes::NodeData;
using QtNodes::NodeDataModel;
using QtNodes::NodeDataType;
using QtNodes::NodeValidationState;
using QtNodes::PortIndex;
using QtNodes::PortType;
/// The model dictates the number of inputs and outputs for the Node.
/// In this example it has no logic.
class MathFunctionModel : public NodeDataModel
{
Q_OBJECT
public:
using FunctionPtr = std::function<double(double, double)>;
using NameAndFunction = std::tuple<QString, QString, FunctionPtr>;
public:
MathFunctionModel();
virtual ~MathFunctionModel()
{
}
public:
QString caption() const override
{
return QStringLiteral("Math Function");
}
bool captionVisible() const override
{
return true;
}
QString name() const override
{
return QStringLiteral("Math Function");
}
std::unique_ptr<NodeDataModel> clone() const override
{
return std::make_unique<MathFunctionModel>();
}
public:
QJsonObject save() const override;
void restore(QJsonObject const &p) override;
public:
unsigned int nPorts(PortType portType) const override;
std::shared_ptr<NodeDataType> dataType(PortType portType, PortIndex portIndex) const override;
std::shared_ptr<NodeData> outData(PortIndex port) override;
void setInData(std::shared_ptr<NodeData>, PortIndex) override;
QWidget *embeddedWidget() override;
private:
QString convertRangeToText(std::vector<double> const &range) const;
std::vector<double> applyFunction(std::vector<double> const &range) const;
void processData();
void createNameAndFunctions();
private slots:
void onFunctionIndexChanged(int index);
void onTextChanged(QString);
private:
std::weak_ptr<ExpressionRangeData> _inputExpression;
std::shared_ptr<ExpressionRangeData> _expression;
QWidget *_widget;
QComboBox *_functionComboBox;
QLineEdit *_secondOperandEdit;
QLineEdit *_variableLabel;
QLineEdit *_rangeLabel;
std::vector<NameAndFunction> _nameAndFunctions;
};
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