Re: [Texmacs-dev] {under,over}brace work

[david]

On Wed, Apr 16, 2003 at 07:04:01AM -0600, Nix N. Nix wrote:
> > However, making wide under/overbraces work will require
> > one or two days of work. The best thing to do is to take
> > a look at how large delimiters are dealt with in the C++ code.
> > Be careful though that there is no automatic TeX-font information
> > about wide composite symbols (as there is for the large delimiters).
> > You should also pay attention to the tricks to get
> > the anti-aliasing right.
> 
> Actually, I was thinking about using virtual fonts and Scheme functions
> such as (glue ...).  I was thinking about making it just another
> character, to be used with (make-wide ...) and (make-wide-under ...).
> 
> However, if I can't get to the point where I can see these symbols, I
> cannot proceed further on any path :o(

If you look carefully (with shrinking=1) you will notice that TeXmacs
does not use TeX glyphs for stretched boxes. When an arrow (for
example) is strectched, it will use a special box which uses the
graphical primitives. See stretch_boxes.cc.
--
                                                            -- DDAA