[Interest] Calendar Systems in Qt

[Soroush Rabiei]

Hello all

I would like to draw your attention to the importance of having universal
calendar system in Qt. In our country, official calendar is Jalali, which is
slightly different compared to Gregorian calendar system (The year starts
within
the first day of the spring and ends on the last day of winter). This makes
impossible for us to use QDate sometimes.

There are many countries using non-Gregorian calendars officially. I think
there
must be an API for at least five most-used calendar systems in qtbase. This
can
be implemented as either a QDate integration or based on any other approach.

We do believe that it’s already too late. As far as I know it’s been 5 years
since the initial discussions started. There were two plans, neither got
implemented. There were https://wiki.qt.io/Qt_5_ICU and QCalendarSystem [?]
I
suppose this plan is abandoned. Not that calendar system is implemented in
Locale System here: http://wiki.qt.io/Qt-5-QLocale

Currently we are using our wrapper API and widgets. QJalaliDate,
QJalaliDateTime, QJalaliDateEdit, QJalaliDateTimeEdit are completed and
QJalaliCalendarWidget is being developed. None of course are not satisfying.

So, I would like to know what current status is. And is there any schedule,
plan, or discussion on the subject?

Cheers,
Soroush
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