Re: Treeviews: changing the color of column headers

["Juan L. Freniche" <fdesp87 gmail com>]

Thanks for your responses. However:

1.- In the sample program that I provided, a custom label is created and 
attached with set_widget to the treeview column in routine "set_header".
2.- I am trying to change the background of the treeview column header, 
no the label text style.
3.- I followed the recommendations given in the thread messages of 
2003-11-19 named "GTK TreeView Column Header Colors" in the gtk-list 
archives in Nov. 2003. The post was initially made by Mike Dailey and 
then T. Evans responded with a solution:
- set widget (with the label)
- once the label is shown and realized:
- get_parent three times to get the button
- then modify_bg for this button
The above is implemented in the sample program in routines 
"set_color_header" and "set_color".

They reported that this approach worked but not in my case. What is 
wrong in the sample program? Unfortunately I couldn't guess their mail 
addresses to consult with the people involved in 2003.

I am using GTK2, porting to GTK3 is out of scope for the moment. May be 
that GTK2 do not support at all changing the column header color but I 
saw some examples in pyton doing this.

El 14/06/2015 a las 1:32, Daniel Kasak escribió:
> I've done this in Gtk2. I don't have my laptop and old code handy
> right now, but from memory:
>
> - create a label
> - set_markup() on the label, and set your colour(s) in there
> - use TreeViewColumn.set_widget() to override the default label
>
> If you can't get it working, post again and I'll go and dig out the
> old ( perl ) code that I used.
>
> Dan
>
> On Sun, Jun 14, 2015 at 7:55 AM, Stefan Salewski <mail ssalewski de> wrote:
> > On Sat, 2015-06-13 at 20:43 +0200, Stefan Salewski wrote:
> > > On Tue, 2015-06-09 at 08:54 +0200, Juan L. Freniche wrote:
> > > > I am trying to change the color of the column headers of a treeview,
> > > > with no sucess at all.
> > > It is funny that currently many people try to change default colors of
> > > GTK widgets. Of course generally that is not a good idea -- common sense
> > > is to give users their default styles. Of course, for special
> > > applications that may be OK. For tree view headers, I can remember that
> > > I tried to chance something style related, and it worked after I added a
> > > custom label widget as header text. See
> > >
> > > http://www.daa.com.au/pipermail/pygtk/2009-February/016601.html
> > >
> > > > Try using a custom widget for the header using
> > > > TreeViewColumn.set_widget()
> > Sorry, have not been able to get it working with GTK2. I tried to put a
> > label in a column header and change the color of the label with
> > gtk_widget_modify_bg(label, GTK_STATE_NORMAL, &color). But it seems to
> > have no effect. Maybe it would work for GTK3, there we have
> > gtk_widget_override_color().
> >
> >
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