nodeeditor2/examples/calculator/NumberSourceDataModel.cpp at 67a191d2893349b27ed8f108ebaf0b8be9e4e950 · fabns-nano/nodeeditor2 · GitHub

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#include "NumberSourceDataModel.hpp"

#include "DecimalData.hpp"

#include <QtCore/QJsonValue>
#include <QtGui/QDoubleValidator>
#include <QtWidgets/QLineEdit>

NumberSourceDataModel::NumberSourceDataModel()
    : _lineEdit{nullptr}
    , _number(std::make_shared<DecimalData>(0.0))
{
    this->setNodeProcessingStatus(QtNodes::NodeProcessingStatus::NoStatus);
}

QJsonObject NumberSourceDataModel::save() const
{
    QJsonObject modelJson = NodeDelegateModel::save();

    modelJson["number"] = QString::number(_number->number());

    return modelJson;
}

void NumberSourceDataModel::load(QJsonObject const &p)
{
    QJsonValue v = p["number"];

    if (!v.isUndefined()) {
        QString strNum = v.toString();

        bool ok;
        double d = strNum.toDouble(&ok);
        if (ok) {
            _number = std::make_shared<DecimalData>(d);

            if (_lineEdit)
                _lineEdit->setText(strNum);
        }
    }
}

unsigned int NumberSourceDataModel::nPorts(PortType portType) const
{
    unsigned int result = 1;

    switch (portType) {
    case PortType::In:
        result = 0;
        break;

    case PortType::Out:
        result = 1;

    default:
        break;
    }

    return result;
}

void NumberSourceDataModel::onTextEdited(QString const &str)
{
    bool ok = false;

    double number = str.toDouble(&ok);

    if (ok) {
        _number = std::make_shared<DecimalData>(number);

        Q_EMIT dataUpdated(0);

    } else {
        Q_EMIT dataInvalidated(0);
    }
}

NodeDataType NumberSourceDataModel::dataType(PortType, PortIndex) const
{
    return DecimalData().type();
}

std::shared_ptr<NodeData> NumberSourceDataModel::outData(PortIndex)
{
    return _number;
}

QWidget *NumberSourceDataModel::embeddedWidget()
{
    if (!_lineEdit) {
        _lineEdit = new QLineEdit();

        _lineEdit->setValidator(new QDoubleValidator());
        _lineEdit->setMaximumSize(_lineEdit->sizeHint());

        connect(_lineEdit, &QLineEdit::textChanged, this, &NumberSourceDataModel::onTextEdited);

        _lineEdit->setText(QString::number(_number->number()));
    }

    return _lineEdit;
}

void NumberSourceDataModel::setNumber(double n)
{
    _number = std::make_shared<DecimalData>(n);

    Q_EMIT dataUpdated(0);

    if (_lineEdit)
        _lineEdit->setText(QString::number(_number->number()));
}