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eserte / perl-tk

the perl module Tk
https://metacpan.org/release/Tk
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[Known issue] Scrolled optional scrollbars #22

Open chrstphrchvz opened 8 years ago

chrstphrchvz commented 8 years ago

I recently encountered the long-known Scrolled optional scrollbars issue while using a specific Perl/Tk program: cf. hotwolf/HSW12/issues/10. Previous reports of the issue in general: http://code.activestate.com/lists/perl-tk/6729/ , http://newsgroups.derkeiler.com/Archive/Comp/comp.lang.perl.tk/2005-12/threads.html#00110

Using Scrolled with optional scrollbars on certain widgets such as Text or ROText can cause the scrollbar to rapidly appear and disappear ("oscillate"), where the data requiring a scrollbar gets hidden by it, causing the scrollbar to be taken away, then put back, and so on. The previously suggested workaround has been to not use the optional scrollbars.

I understand if a fix for this is unlikely; just wanted to document it here. At the moment I'm not too familiar with Perl/Tk or its internals.

eserte commented 8 years ago

Also reported at RT: https://rt.cpan.org/Ticket/Display.html?id=114203