[Qt-interest] S60v5 Jalali calendar

[John Layt]

On Monday 15 Aug 2011 09:05:12 ahmed shaker wrote:
> Hi
> 
> Is it good ide that I use subclass of QDate for Jalali (persian) Calendar
> and convert date?
> 
> Tnx

No, QDate does not have the required virtual methods to make sub-classing it 
easy, you would have to reimplement everything.

In KDE we had the same problem, we created a new class KCalendarSystem with 
derived classes for all our date conversions.  It uses QDate as a container to 
pass around the Julian Day value, then KCalendarSystem translates that into 
the required calendar system.

http://api.kde.org/4.x-api/kdelibs-
apidocs/kdecore/html/classKCalendarSystem.html

https://projects.kde.org/projects/kde/kdelibs/repository/revisions/master/entry/kdecore/date/kcalendarsystemjalali.cpp

Please note that the code is LGPL licensed, but I hold most of the copyright 
so can let you use parts if required.

Proper support is planned for Qt5, I'm coding it now, but that won't help you 
on S60 :-)

Cheers!

John.