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#include "MathFunctionModel.hpp"
#include "ExpressionRangeData.hpp"
#include <QtCore/QDebug>
#include <QtCore/QJsonValue>
#include <QtGui/QDoubleValidator>
#include <QtWidgets/QComboBox>
#include <QtWidgets/QFormLayout>
#include <QtWidgets/QLineEdit>
#include <QtWidgets/QWidget>
#include <cmath>
MathFunctionModel::MathFunctionModel()
{
createNameAndFunctions();
_widget = new QWidget();
auto l = new QFormLayout();
_functionComboBox = new QComboBox;
for (auto const &f : _nameAndFunctions)
{
_functionComboBox->addItem(std::get<0>(f));
}
_secondOperandEdit = new QLineEdit();
_secondOperandEdit->setValidator(new QDoubleValidator());
_secondOperandEdit->setText("0.0");
_variableLabel = new QLineEdit();
_variableLabel->setReadOnly(true);
_rangeLabel = new QLineEdit();
_variableLabel->setReadOnly(true);
_rangeLabel->setMaximumWidth(200);
l->addRow("Function:", _functionComboBox);
l->addRow("Second Operand", _secondOperandEdit);
l->addRow("Variable:", _variableLabel);
l->addRow("Range:", _rangeLabel);
_widget->setLayout(l);
connect(_secondOperandEdit, SIGNAL(textChanged(QString)), this, SLOT(onTextChanged(QString)));
connect(_functionComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(onFunctionIndexChanged(int)));
}
void MathFunctionModel::onFunctionIndexChanged(int)
{
processData();
}
void MathFunctionModel::onTextChanged(QString)
{
processData();
}
QJsonObject MathFunctionModel::save() const
{
QJsonObject modelJson = NodeDataModel::save();
if (_expression)
modelJson["expression"] = _expression->expression();
return modelJson;
}
void MathFunctionModel::restore(QJsonObject const &p)
{
QJsonValue v = p["expression"];
// if (!v.isUndefined())
//{
// QString str = v.toString();
// std::vector<double> d;
// d.push_back(0.0);
//_expression = std::make_shared<ExpressionRangeData>(str, d);
//_variableLabel->setText(str);
//}
}
unsigned int MathFunctionModel::nPorts(PortType portType) const
{
unsigned int result = 1;
switch (portType)
{
case PortType::In: result = 1; break;
case PortType::Out: result = 1;
default: break;
}
return result;
}
std::shared_ptr<NodeDataType> MathFunctionModel::dataType(PortType, PortIndex) const
{
return ExpressionRangeData().type();
}
std::shared_ptr<NodeData> MathFunctionModel::outData(PortIndex)
{
return _expression;
}
QString MathFunctionModel::convertRangeToText(std::vector<double> const &range) const
{
QString result("(");
for (std::size_t i = 0; i < range.size() - 1; ++i)
{
result = result + QString::number(range[i]) + ", ";
}
result = result + QString::number(range.back()) + ")";
return result;
}
std::vector<double> MathFunctionModel::applyFunction(std::vector<double> const &range) const
{
std::vector<double> result;
FunctionPtr const &f = std::get<2>(_nameAndFunctions[_functionComboBox->currentIndex()]);
QString secondOperandText = _secondOperandEdit->text();
bool ok;
double so = secondOperandText.toDouble(&ok);
for (auto const &d : range)
{
result.push_back(f(d, so));
}
return result;
}
void MathFunctionModel::createNameAndFunctions()
{
_nameAndFunctions.push_back(
std::make_tuple(QString("sin()"), QString("sin(%1)"), static_cast<FunctionPtr>([](double a, double b) { return sin(a); })));
_nameAndFunctions.push_back(
std::make_tuple(QString("cos()"), QString("cos(%1)"), static_cast<FunctionPtr>([](double a, double b) { return cos(a); })));
_nameAndFunctions.push_back(
std::make_tuple(QString("-"), QString(" %1 - %2 "), static_cast<FunctionPtr>([](double a, double b) { return a - b; })));
_nameAndFunctions.push_back(
std::make_tuple(QString("+"), QString(" %1 + %2 "), static_cast<FunctionPtr>([](double a, double b) { return a + b; })));
_nameAndFunctions.push_back(
std::make_tuple(QString("*"), QString(" %1 * %2 "), static_cast<FunctionPtr>([](double a, double b) { return a * b; })));
_nameAndFunctions.push_back(
std::make_tuple(QString("pow"), QString("pow(%1, %2)"), static_cast<FunctionPtr>([](double a, double b) { return std::pow(a, b); })));
}
void MathFunctionModel::processData()
{
auto inputExpression = _inputExpression.lock();
if (inputExpression)
{
QString input = inputExpression->expression();
std::vector<double> const &inputRange = inputExpression->range();
std::vector<double> modifiedRange = applyFunction(inputRange);
QString tt = std::get<1>(_nameAndFunctions[_functionComboBox->currentIndex()]);
_expression = std::make_shared<ExpressionRangeData>(tt.arg(input, _secondOperandEdit->text()), modifiedRange);
_variableLabel->setText(_expression->expression());
//_variableLabel->adjustSize();
_rangeLabel->setText(convertRangeToText(modifiedRange));
//_rangeLabel->adjustSize();
emit dataUpdated(0);
}
}
void MathFunctionModel::setInData(std::shared_ptr<NodeData> nodeData, PortIndex portIndex)
{
_inputExpression = std::static_pointer_cast<ExpressionRangeData>(nodeData);
processData();
}
QWidget *MathFunctionModel::embeddedWidget()
{
return _widget;
}
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