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: