Re: GtkTreeModel

[Christer Palm <palm nogui se>]

Hello Edscott!

edscott wilson garcia wrote:
> > The tricky part is what happens if the user tries to expand a 
> > subdirectory which doesn't happen to contain any subdirectories. Just 
> > like the Windoze explorer (cough) directory view, I want the expander 
> > for that directory to "magically" disappear when the user tries to 
> > expand it.
>
> Use gtktreestore model. Add a dummy for non expanded directories. That
> makes the expander appear. When the user expands, if nothing is in
> there, collapse the node and remove the dummy. Since there will be no
> children, the expander disappears.

Hmm.. Yeah - that should work I guess. Although it feels a bit backward 
from an object-oriented point-of-view.

> But what would you do if some other
> process or whatever creates a file in that directory? You will not be
> able to expand it, unless you are constantly monitoring the contents.

The view is transient so I don't think that would be a real problem. But 
I could easily add some kind of (user activated) refresh mechanism if 
that would be necessary. If I store the last modified timestamp along 
with the directory name, it would just be a matter of checking whether 
the timestamp has changed.

--
Christer Palm