QDoubleSpinBox: dot as comma

[Raccoon29]

Hi everyone,

is there a way to put decimal comma by pressing numeric keypad dot?
Es.
123,45 -> 123 then pressing "." it puts the "," for 123,45
now with "." simply does nothing...

I searched around but I didn't find anything
Thanks in advance!

[mcosta]

The decimal point character depends to QLocale set for the Widget with QWidget::setLocale()
For "Italian" locale this is ','; for "C" locale is ".".

You can override this behaviour deriving from QDoubleSpinBox and reimplementing QWidget::keyPressEvent()

[jpn]

• QDoubleSpinBox::textFromValue()
• QDoubleSpinBox::valueFromText()

[Raccoon29]

From doc:

(QDoubleSpinBox::textFromValue()): [...]The default implementation returns a string containing value printed using QLocale().toString(value, QLatin1Char('f'), decimals()) and will remove the thousand separator.[...]

so to have the thousand separator? (sorry, I can't understand this section... )

[jpn]

QLocale formats numbers so that it includes a thousand separator. QDoubleSpinBox just removes it because it's not sensible to include in a spin box...

Anyway, what I meant was something like this:

QString MyDoubleSpinBox::textFromValue(double value) const
{
    QString text = QDoubleSpinBox::textFromValue(value);
    return text.replace(QLocale().decimalPoint(), QLatin1Char('.'));
}
 
double MyDoubleSpinBox::valueFromText(const QString& text) const
{
    return QDoubleSpinBox(QString(text).replace(QLatin1Char('.'), QLocale().decimalPoint()));
}

QString MyDoubleSpinBox::textFromValue(double value) const
{
    QString text = QDoubleSpinBox::textFromValue(value);
    return text.replace(QLocale().decimalPoint(), QLatin1Char('.'));
}

double MyDoubleSpinBox::valueFromText(const QString& text) const
{
    return QDoubleSpinBox(QString(text).replace(QLatin1Char('.'), QLocale().decimalPoint()));
}

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