[GRASS-dev] Improvement to TreeCtrlComboPopup

[Markus Neteler]

Hi Julio,

On Wed, Mar 24, 2010 at 6:39 PM, Julio Castillo <juliocc at gmail.com> wrote:
> Hi,
>
> I've been using grass for a while and now I would like to help on
> grass develepment. Recently I sent a patch to fix a minor bug on
> r.mfilter.fp that was giving me some trouble. Now, I found some stuff
> on the wxpython GUI that, IMHO, can be improved.

Improvements are always welcome (especially as patches)!

> I noticed that the tree control for selecting layers can be improved
> with the following changes:
>
> 1. Highlight the selected layers in the popup. For example, if I
> select layer X and then want to select something else, X should appear
> selected when opening the popup again. Also, if there is a selection,
> the first selected item should be visible after the popup
> appears. There seems to be some work on this direction on gselect.py
> but it doesn't work (at least on my computer).
>
> 2. Allow multiple selections without closing the popup. Currently, if
> you want to select multiple layers, you have to open layer control once
> for every layer. I think that it would be useful if you can select
> multiple layers holding down Shift, for example.
>
> 3. Some sort of filtering once you open the popup. This can help you
> find and specific layer quicker.
>
> Points 1 and 2 are not so difficult, in fact, I already have something
> very basic that does this. Point 3 seems a little more difficult but
> if there is some demand for it, I guess it can be made.
>
> I would like to know your opinion and if you think that these
> improvements are worth the effort.

IMHO usability improvements are a good thing. As you may have noticed,
the wxGUI development is underpowered, so contributions are very
important. Please don't hesitate :)

Markus