Re: GTK interface modification

[DJ Stauffer <emacsdev@djstauffer.com>]

On 08/15/2018 03:07 AM, martin rudalics wrote:
> > > And finally you have to actually redraw the border when a window gets
> >  > (de-)selected, the appropriate moments given by the mode-line code.
> >
> > ^ Is this also in xdisp.c, or is that code elsewhere?
>
> The call where the "real selected window" is known is in xdisp.c's
> display_mode_lines as
>
>       /* Select mode line face based on the real selected window. */
>       display_mode_line (w, CURRENT_MODE_LINE_FACE_ID_3 (sel_w, sel_w, 
> w),
>              NILP (window_mode_line_format)
>              ? BVAR (current_buffer, mode_line_format)
>              : window_mode_line_format);
>
> and you probably want to set
>
>     w->must_be_updated_p = true;
>
> as well.  The routine actually changing the appearance of W's border
> will then have to check whether W has the selected appearance already
> set.  If not, you have to redraw W's border and that of the previously
> selected window of W's frame accordingly.
>
> I'm not sure where to actually draw the border on glass though. You
> can look at where window dividers are drawn but these are merely
> statically bound to windows and do not depend on whether a window is
> actually selected.  You will have to play around then.
>
> martin

OK, thanks again!

DJ