Qt5 custom QDoubleSpinBox

numbereditor.cxx

#include "numbereditor.hxx"

namespace Schematics::Ui::Widgets
{
    NumberEditor::NumberEditor(QWidget *parent)
        : QDoubleSpinBox(parent)
    {
        setSuffix(" mm");
        setDecimals(1);
        setAlignment(Qt::AlignRight);
        setMinimum(0.0);
        setMaximum(1000.0);
    }

    QValidator::State NumberEditor::validate(QString &input, int &pos) const {
        auto point = locale().decimalPoint();
        auto dot = (point == ',') ? '.' : ',';
        // assume dot same comma
        input.replace(dot, point);
        return QDoubleSpinBox::validate(input, pos);
    }

    NumberEditor::~NumberEditor() = default;
} // namespace Schematics::Ui::Widgets

numbereditor.hxx

#ifndef SCHEMATICS_NUMBEREDITOR_HXX
#define SCHEMATICS_NUMBEREDITOR_HXX

#include <QDoubleSpinBox>

namespace Schematics::Ui::Widgets
{
    class NumberEditor: public QDoubleSpinBox
    {
    public:
        explicit NumberEditor(QWidget *parent = nullptr);
        ~NumberEditor() override;
        QValidator::State validate(QString &input, int &pos) const override;
    };
} // namespace Schematics::Ui::Widgets

#endif //SCHEMATICS_NUMBEREDITOR_HXX