scientificspinbox.h

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//  ************************************************************************************************
//
//  qt-mvvm: Model-view-view-model framework for large GUI applications
//
//! @file      mvvm/viewmodel/mvvm/editors/scientificspinbox.h
//! @brief     Defines class CLASS?
//!
//! @homepage  http://www.bornagainproject.org
//! @license   GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2020
//! @authors   Gennady Pospelov et al, Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
//  ************************************************************************************************
 
#ifndef BORNAGAIN_MVVM_VIEWMODEL_MVVM_EDITORS_SCIENTIFICSPINBOX_H
#define BORNAGAIN_MVVM_VIEWMODEL_MVVM_EDITORS_SCIENTIFICSPINBOX_H
 
#include "mvvm/viewmodel_export.h"
#include <QAbstractSpinBox>
 
namespace ModelView {
 
class MVVM_VIEWMODEL_EXPORT ScientificSpinBox : public QAbstractSpinBox {
    Q_OBJECT
    Q_PROPERTY(double value MEMBER m_value READ value WRITE setValue NOTIFY valueChanged USER true)
 
public:
    ScientificSpinBox(QWidget* parent = nullptr);
    ~ScientificSpinBox() override;
 
    double value() const;
    void setValue(double val);
 
    double singleStep() const;
    void setSingleStep(double step);
 
    double minimum() const;
    void setMinimum(double min);
 
    double maximum() const;
    void setMaximum(double max);
 
    void setDecimals(int);
    int decimals() const;
 
    void stepBy(int steps) override;
    QValidator::State validate(QString&, int&) const override { return QValidator::Acceptable; }
    void fixup(QString&) const override {}
 
    static QString toString(double val, int decimal_points);
    static double toDouble(QString text, const QDoubleValidator& validator, double min, double max,
                           double default_value);
    static double round(double val, int decimals);
 
signals:
    void valueChanged(double value);
 
protected:
    QAbstractSpinBox::StepEnabled stepEnabled() const override;
 
private:
    void updateValue();
    void updateText();
    bool inRange(double val) const;
 
    double m_value, m_min, m_max;
    double m_step;
    int m_decimals;
    QDoubleValidator m_validator;
};
 
} // namespace ModelView
 
#endif // BORNAGAIN_MVVM_VIEWMODEL_MVVM_EDITORS_SCIENTIFICSPINBOX_H