Tony wrote:
> > > Under *setting-guifont*, in file runtime/doc/gui.txt (or
> > > $VIMRUNTIME/doc/gui.txt) line 1229
> > > there is
> > > if has("gui_gtk2")
> > > there should be
> > > if has("gui_gtk2") || has("gui_gtk3")
> > > otherwise the 'guifont' option will be given a wrong font name
> > > (selected by has("x11")) in gvim with GTK3 GUI.
> >
> > It should then be possible to just check for "gui_gtk", that is an "or"
> > of "gui_gtk2" and "gui_gtk3".
> >
> > There is a comment just below this:
> >
> > " Also for GTK 1
> >
> > I don't think this exists anymore, and we don't need to cover everything
> > in this example. It's also misleading, since the check for "gui_gtk2"
> > actually would also catch GTK 1.
>
> Oh? It used not to.
>
> In the past (quite some years ago), when I used GTK1 on Linux,
> • has("gui_gtk") would catch any GTK version
> * has("gui_gtk2") would catch only GTK2. The Vim help mentioned it as
> experimental but it was less and less so as time passed, and IIRC at
> some point that mention was removed.
> • GTK3 didn't exist yet.
There is no GTK 1 version anymore. The code now uses:
{"gui_gtk",
#ifdef FEAT_GUI_GTK
1
#else
0
#endif
},
{"gui_gtk2",
#if defined(FEAT_GUI_GTK) && !defined(USE_GTK3)
1
#else
0
#endif
},
{"gui_gtk3",
#if defined(FEAT_GUI_GTK) && defined(USE_GTK3)
1
#else
0
#endif
},
That means "gui_gtk2" is true for any GTK version except GTK 3.
I haven't heard from anyone that this is not sufficient. As you
mention, the first GTK version only existed long ago (and was not very
usable).
> That's when I wrote a VimTip (the precursor to the *setting-guifont*
> help entry) and posted it to vim.org. I didn't use has("gui_gtk")
> because GTK1 needed to be treated differently than GTK2 so I tested
> for GTK2 first (GTK3 didn't exist yet), then for a few others, then
> for has("x11") meaning "other X11 including GTK1" and assumed Windows
> in the bottom-most "else" branch. MacVim, when it was later developed,
> needed an other …elseif… but I wasn't competent to write it.
>
> Since then has("gui_gtk3") has been added. Its use is very similar to
> that of GTK2 but there are differences (e.g. Gnome3 is included in
> GTK3 but Gnome2 had to be specified to configure in addition to GTK2;
> but the font settings are identical).
>
> AFAIK 'guifont' for Motif still has to be an XLFD so if we can have
> the obsolete GTK1 fall into that branch of the if … elseif … elseif …
> else … endif, then why not?
We don't support GTK 1 anymore, suggesting code in the help for not
implemented functionality doesn't make much sense.
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It's letter perfect in it's weigh, my checker tolled me sew!
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