[Paraview-developers] Locale settings in PV

[Cory Quammen]

Hi Gerald,

It looks like this isn't necessarily a quick change. I have filed a bug
report here:

http://www.paraview.org/Bug/view.php?id=15786

Thanks,
Cory

On Fri, Oct 16, 2015 at 10:31 AM, Lodron, Gerald <Gerald.Lodron at joanneum.at>
wrote:

> Hi
>
> I searched "DoubleValidator" in complete PV source and also found same
> usage in other classes.I am currently not in office but you can easily
> search with Visual studio or other programms. Or wait till end next week.
>
> I teseted the Qlocator::setDefault function in a constructor of a plugin
> of mine to set PV locale to english but no success.may it must be called
> directly in main before first qt stuff
>
> Best regards
>
>
> Von Samsung Mobile gesendet
>
>
> -------- Ursprüngliche Nachricht --------
> Von: Cory Quammen
> Datum:16.10.2015 16:20 (GMT+01:00)
> An: "Lodron, Gerald"
> Cc: "Paraview User (paraview at paraview.org)" ,"Paraview Developer (
> Paraview-developers at paraview.org)"
> Betreff: Re: [Paraview-developers] Locale settings in PV
>
> Hi Gerald,
>
> Thanks for your report and fix.
>
> It looks like pqDoubleEdit is used only in the PointSprite plugin. Are you
> seeing this problem only in the PointSprite plugin, or do you see problems
> more widely in ParaView?
>
> Thanks,
> Cory
>
> On Thu, Oct 15, 2015 at 5:46 AM, Lodron, Gerald <Gerald.Lodron at joanneum.at
> <mailto:Gerald.Lodron at joanneum.at>> wrote:
> Hello
>
> I noticed a bug in paraview on parsing double values in QLineEdits, e.g.
> in pqDoubleEdit:
>
> double pqDoubleEdit::value()
> {
>   QString currentText = this->text();
>   int currentPos = this->cursorPosition();
>   QDoubleValidator dvalidator(NULL);
>   QValidator::State state = dvalidator.validate(currentText, currentPos);
>   if (state == QValidator::Acceptable || state == QValidator::Intermediate)
>     {
>     return currentText.toDouble();
>     }
>   return 0.0;
> }
>
> The Problem is that QDoubleValidator uses the current locale. If the
> current locale is e.g. German that e.g. "0.1" is not allowed, only "0,1".
> On the other side the QString function toDouble cannot parse it correctly,
> see documentation http://doc.qt.io/qt-5/qstring.html#toDouble , here the
> http://doc.qt.io/qt-5/qlocale.html#toDouble is recommended.... So all
> QLineEdit functions with toDouble must be replaced by
> QLocale oL;
> Double dValue = oL.toDouble( lineEdit->text())
>
> Nasty....Other solution would be to set the locale to English for whole
> paraview regardless to the system locale, but I don't know if that is
> possible (also not very beautiful)...
>
> Best regards
>
>
>
> ------------------------------------------------------------------------------------
> Gerald Lodron
>
> Researcher of Machine Vision Applications Group
> DIGITAL - Institute for Information and Communication Technologies
>
> JOANNEUM RESEARCH Forschungsgesellschaft mbH
> Steyrergasse 17, 8010 Graz, AUSTRIA
>
> phone:   +43-316-876-1751<tel:%2B43-316-876-1751>
> general fax: +43-316-876-1751<tel:%2B43-316-876-1751>
> web: http://www.joanneum.at/digital
> e-mail: gerald.lodron at joanneum.at<mailto:gerald.lodron at joanneum.at>
>
>
>
>
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>
> --
> Cory Quammen
> R&D Engineer
> Kitware, Inc.
>



-- 
Cory Quammen
R&D Engineer
Kitware, Inc.
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