looking for a virtual listbox or text

[Mel]

i have a very large file 10G+ and i need a virtual listbox or read-only text
widget to scroll through the file and display whatever space it has in the
gui real estate. (say 10 lines) and as the scrollbar moves up and down more
lines are read and displayed in the widget

any help is appreciated

[Jeff Godfrey]

"Mel" <m...@redolive.com> wrote in message
news:NcJna.123$Yg6....@news.uswest.net...

I don't have any experience with this widget, but it sounds like
"a(Huge)ListBox" might be just what you're after. Check it out here:

http://perso.wanadoo.fr/maurice.ulis/tcl/tclcode-en.html

Jeff

[ulis]

> > i have a very large file 10G+ and i need a virtual listbox or read-only
> text
> > widget to scroll through the file and display whatever space it has in the
> > gui real estate. (say 10 lines) and as the scrollbar moves up and down
> more
> > lines are read and displayed in the widget
> >
> > any help is appreciated
>
>
> I don't have any experience with this widget, but it sounds like
> "a(Huge)ListBox" might be just what you're after. Check it out here:

The Hugelist needs all the items to be loaded. And then can handle G
of them.
The virtualization is on the display, not the loading.

I think that Mel is looking after a virtualization of the loading (the
items are loaded when needed).

To do the virtualization of the loading, the huge file needs to be
indexed (can be done during creation of the file).
Then the Hugelist code could be easily improved to handle this
virtualization.
It's matter of a -partialloadcommand option, similar to a -fillcommand
option for a tree widget.

ulis

[Mel]

Yes, that's exactly wnat i am looking for. i have log files over 10GB (dont
ask me, others created it) and now after the mess, they want me to fix their
problem, by giving them a virtual viewer

Thansk for your observation
Yours, Mel

"ulis" <mauric...@wanadoo.fr> wrote in message
news:29de415e.03041...@posting.google.com...