Detailed Description

A validator for an input field which only accepts decimals. Source code adapted from StackOverflow

Definition at line 22 of file StrictDoubleValidator.h.

#include <StrictDoubleValidator.h>

Inheritance diagram for StrictDoubleValidator:

Collaboration diagram for StrictDoubleValidator:

Public Member Functions
	StrictDoubleValidator (double min, double max, std::size_t decimals, QObject *parent=nullptr)

	StrictDoubleValidator (QObject *parent=nullptr)

QValidator::State	validate (QString &input, int &pos) const override

Constructor & Destructor Documentation

◆ StrictDoubleValidator() [1/2]

StrictDoubleValidator::StrictDoubleValidator	(	double	min,
		double	max,
		std::size_t	decimals,
		QObject *	parent = nullptr )

inline

Definition at line 25 of file StrictDoubleValidator.h.

                                                                                                   :
        QDoubleValidator( min, max, decimals, parent)
    {}

◆ StrictDoubleValidator() [2/2]

StrictDoubleValidator::StrictDoubleValidator ( QObject * parent = nullptr )

inlineexplicit

Definition at line 29 of file StrictDoubleValidator.h.

30 : QDoubleValidator(parent)

31 {}

Member Function Documentation

◆ validate()

QValidator::State StrictDoubleValidator::validate	(	QString &	input,
		int &	pos ) const

inlineoverride

Definition at line 33 of file StrictDoubleValidator.h.

    {
        Q_UNUSED(pos);
        if (input.isEmpty() || input == "." || input == "-") return Intermediate;
 
        QChar const decimalPoint('.');
        if (input.indexOf(decimalPoint) != -1)
        {
            int const charsAfterPoint = input.length() - input.indexOf(decimalPoint) - 1;
            if (charsAfterPoint > decimals())
                return QValidator::Invalid;
        }
 
        bool ok;
        double const d = input.toDouble(&ok);
 
        if (ok && d >= bottom() && d <= top())
            return QValidator::Acceptable;
        else
            return QValidator::Invalid;
    }

The documentation for this class was generated from the following file: