RE: pTk Scrolled Text problem

> >this problem is in perl/Tk and does not appear to be in Tcl/Tk.
> >Because if I replace many "use Tk; use Tk::something" with single
> >
> >  use Tcl::Tk qw(:perlTk);
> >
> >, the problem does not appear.

...

> The problen certainly used to occur with Tcl/Tk.

I only meant that same code within Tcl/Tk, as opposed to perl/Tk, behaves
differently.
I.e. if I instead write same program in Tcl/Tk language (this is what
Tcl::Tk perl module essentially do internally), then behaviour is different.

However, according to Slaven, same problem appears to be in Tcl::Tk also (I
can't reproduce, but I beleive this could be)


> What happens is: a line at the bottom of in the window is too 
> wide to be 
> rendered so a horizontal scrollbar is mapped. But now line 
> isn't in the window
> (covered by scrollbar) so scrollbar is unmapped.

Within this logic, a flaw may be caused by window redraw strategy.
So may be I need to try window manager same with Slaven to reproduce.


> 
> A proper "fix" is for Text widget to know the "width" of text 
> as a whole
> not just that which fits in the window. But that is a lot of 
> computation 
> for a large document. Caching longest line seen might suffice. 
> 
> What I personally would like to see is scrollbar's 
> mapped-ness be determined 
> by whether ANY line of whole text is wider than window, but 
> slider expand to 
> full size if current window contents fit.

me too.
BTW scrolled bar behaviour changed in Tcl/Tk recently,  see for example
http://www.tcl.tk/cgi-bin/tct/tip/155.html
Vadim.
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