[Qt-interest] line edits and commas

[Duane]

On 4/18/2011 3:39 PM, Duane wrote:
> On 4/18/2011 12:24 PM, Duane wrote:
>> Using 4.7.1 LGPL version. MS Windows.
>>
>>
>> QLineEdit with a double validator accepts '.' as valid as expected for
>> the target default locale.  But it allows ',' to be entered. I am
>> checking the state of the validator to determine when the string is
>> acceptable rather than intermediate.
>>
>> But it isn't consistent as to whether the state is valid or
>> intermediate.  For example, if I have it set with a min 0 and max 10 and
>> the user enters 0,1 it returns acceptable but if the user enters 12,3 it
>> returns intermediate.  0,1, is also acceptable.  0,1.2 is also
>> acceptable.  It almost seems that it's trying to allow a thousands
>> separator.  But according to the docs:
>>
>> In addition, QDoubleValidator is always guaranteed to accept a number
>> formatted according to the "C" locale. QDoubleValidator will not accept
>> numbers with thousand-separators.
>>
>>
>> I'm able to handle this by checking for commas in the textChanged() slot
>> and removing them but this behavior seems new and not correct.
>> Actually, I don't think that it should return intermediate when
>> encountering a comma in a locale that uses dots for decimal points.
>>
>>
>> A second and maybe related problem is that a QSpinBox with a min of 0
>> and some positive number for a max allows the user to enter commas.  It
>> doesn't allow decimal separators so it must also be trying to use a
>> thousands separator.
>>
>>
>> Is this intended behavior in either case?
>
> Just to follow up, when I build the project with 4.5.1 Windows
> commercial a line edit with a QDoubleValidator using the default locale
> (English Candian or US) doesn't allow commas entered at all.

And one more follow up:
http://bugreports.qt.nokia.com/browse/QTBUG-15588