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Re: [O] latex checkboxes

From: Thomas S. Dye
Subject: Re: [O] latex checkboxes
Date: Thu, 16 Jun 2011 13:23:18 -1000

Skip Collins <address@hidden> writes:

> There is a couple of problems with the way checkboxes are typeset in LaTeX.
> - [ ] a
> - [X] b
> - [-] c
> is translated to the LaTeX
> \begin{itemize}
> \item $\Box$ a
> \item $\boxtimes$ b
> \item $\boxminus$ c
> \end{itemize}
> The first problem is that \Box is not the same size as \boxtimes or \boxminus 
> .
> The correct symbol to use from the amssymb package is \square which
> matches the other two symbols.
> Another problem is that these symbols were intended to be mathematical
> binary operators, and are therefore rather small for the purposes of a
> checkbox. I suggest that LaTeX output could be modified to something
> like:
> \setbox0=\hbox{\LARGE$\square$}
> \begin{itemize}
> \item {\parbox[][][c]{\wd0}{\LARGE$\square$}} a
> \item {\parbox[][][c]{\wd0}{\LARGE$\boxtimes$}} b
> \item {\parbox[][][c]{\wd0}{\LARGE$\boxminus$}} c
> \end{itemize}
> The parbox ensures that the checkbox is nicely centered with the first
> line of text.
> Another nice-to-have feature would be to use the checkbox as a label
> for list items in non-enumerated lists. Currently, the list bullet
> appears as visual clutter next to the checkbox.
Aloha Skip,

I think you might be able to get the behavior you want by modifying the
variable org-export-latex-list-parameters, perhaps something like
'(:ustart "\\setbox0=\\hbox{\\LARGE$\\square$}\n\\begin{itemize}\n" :cboff
"\\parbox[][][c]{\\wd0}{\\LARGE$\\square$}" :cbon

The variable is set by default to  '(:cbon "$\\boxtimes$" :cboff
"$\\Box$") in org-latex.el and is used to override the default settings
of org-list-to-latex in org-list.el.
Not tested.

Thomas S. Dye

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