On Fri, Feb 19, 2010 at 1:45 PM, Pietro Battiston <[email protected]> wrote:
> Il giorno ven, 19/02/2010 alle 13.04 +0100, Lionel Dricot ha scritto: > > Hello, > > > > > > I'm currently working closely with gtk.TreeModelFilter and I'm > > currently stuck. > > > > > > I've discovered that in order to have a row visible, that row has to > > return True against the visible_func but, also, that *all his parents > > have to be visible*. > > > > > > This is rather important and not written in any GTK documentation I've > > seen (maybe I should send a patch against pygtk doc for that). > > > > > > > > > > As I consequence, I'm currently looking for a way to display children > > that have an hidden parent. That children would be displayed at the > > root. > > > > > > For example : > > > > > > a > > --> b > > ------->c > > ---------->d > > (d is child of c which is child of b which is child of b) > > if b is not visible, my tree would display : > > > > > > a > > c > > -->d > > Isn't it quite inconsistent?! > > I think that I'd possibly expect > > > a > --> b > ------->c > ---------->d > > (automatically show parents of a row that has visible_func() True) > > or > > a > ------->c > ---------->d > > (simpler approach, but I guess this is visually _very ugly_ and > counterintuitive for the user). > > In any case, I wouldn't want a row to change its appearance... > > So, what is the best option between the current behaviour and the "show > all parents" (the first I presented)? I guess there is no general > answer, but that the current is more intuitive for the programmer, and > it is easier to workaround it if you need to (I guess that's what > seahorse does, for instance). > > Still, a convenience method to switch from the current behaviour to the > "show all parents" one would be a nice feature. > > > > (currently, it only display "a"). > > > > > > > > > > How can I do that with my treemodelfilter ? It seems for me a rather > > important usecase for a treemodelfilter but I cannot find any > > documentation or code sample on the web about a way of doing that. > > > > Again, if I understood correctly you can't do that with a > treemodelfilter, because the "depth" of a row shouldn't change. > > Pietro > > >
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