Re: Tree view

[Thomas Dickey]

On Sun, 27 Feb 2005, Jonas Jacobsson wrote:

> Hi,
>
> I'm rather new to ncurses and C in general and is searching
> for a way to handle a tree view. Of what I can read from the
> ncurses how-to's, there is no special support for this in the
> ncurses family of libs?
>
> If not, how do you folks out there do this?

I haven't done one recently, but my directory editor displays a directory
tree for instance.  That's done by drawing the associated lines onto a
window as if it was a viewport.  The directory tree can get rather large 
- I see about 20,000 nodes on an average machine.  Besides moving the 
cursor around on the lines, it can collapse/expand nodes.

Something of that general nature might be nice to have in a reusable form.
I do have a to-do item for dialog to implement a tree widget (seeing that
Xdialog does that), but haven't done that.

--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net