[gtkada] non-text widget in tree view column header

[Jan de Kruyf]

rob, hallo.

I dont understand quite what you are doing (I am too new for that)  I have
only done some glade stuff
which worked quite well once I understood the idiocyncracies of both gtk
and ada.

But as a general rule I would say that
1. the outer window picks up the mouse from X (if it is linux you are
working with)
2. the outer window sends the mouse activity it got from X to one of its
children i.e. the area-occupant that holds title to the mouse coordinates.
Or perhaps it sends it to all children and the area-occupant picks it up,
while the others silently drop the message.
3. this child does the same and so on down the hierarchy,
4. until somewhere an action has been programmed for this mouse activity (a
handler has been connected)

So if you dont get any action I would say one of 2 things:
either your buttons are indeed not in the window hierarchy, as you say!
or those buttons exist in there own right but are not connected to the
operating system (X again in the linux case) via a GtkWindow.

So there is a parent child connection broken in the chain from X to your
buttons!


j.





On Sat, May 18, 2013 at 3:29 PM, Rob Groen <robgr at xs4all.nl> wrote:

> I have a tree view of 1 column, that shows a list store with 2 columns, a
> string and a boolean. The tree view column has two renderers, one for a
> toggle and one for text. In the header of the column I have a checkbutton
> and a normal button (in stead of normal text). I want to use the
> checkbutton in the column header to toggle all the elements in the column.
> The normal button is to be used to sort the column. (Note the a separate
> show or show_all on these buttons is needed to display them as they are not
> part of the window  hierarchy.)
> The header is made clickable and reacts to the "clicked" signal of the
> tree view column.
> I have handlers connected to the "toggle" signal of the checkbutton (in
> the header) and to the "clicked" signal of the normal button (also in the
> header), but these handlers are never called. If I specify the string
> column in the list store to be used for sorting, sorting happens as
> expected and the "clicked" handler on the column is called as well, but I
> want the sorting and toggling actions to be separated.
> Did I miss something? Is there way to achieve what I want, i.e. get the
> right handler called ?
>
> Regards,
> Rob Groen
>
>
>
> ______________________________**_________________
> gtkada mailing list
> gtkada at lists.adacore.com
> http://lists.adacore.com/**mailman/listinfo/gtkada<http://lists.adacore.com/mailman/listinfo/gtkada>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: </pipermail/gtkada/attachments/20130518/753b05c4/attachment.html>