RE: Slide style with varying font size for different item levels

Thanks Hendri

By the way, I like the approach of HAprosper to invent the xitem, instead of 
overloading the item; that is much cleaner! I also like the dualslide 
environment. That sure could have made my life easier...

I downloaded the HAprosper package and added the line

\usepackage{HA-prosper}

in the preamble of my prosper document, but it won't compile. Latex 
complains

! LaTeX Error: Missing \begin{document}.

I thought the HAprosper should be completely compatible with prosper. What 
could be the issue?

Halldor

>From: "Hendri Adriaens" <[email protected]>
>To: <[email protected]>
>Subject: RE: [Prosper-users] Slide style with varying font size for 
>different item levels
>Date: Mon, 11 Apr 2005 18:47:55 +0200
>
> > I am trying to make a slide style, that will allow me to define
> > globally the
> > font size for each of the 3 levels in the itemize environment.
> > Basically I
> > want the font size to be smaller on level 2 and 3 (which is default in
> > PowerPoint).
>
>This is not a prosper problem but a LaTeX problem.
>However, prosper does insert an extra layer of
>difficulty due to its erroneous manouvres with \item.
>
>So here we go. Let me stress that it isn't possible
>without redoing \@item from the latex kernel. However,
>as we can assume that you will be using a non-font
>item label, we can make a nice workaround. We first
>test it in a standard LaTeX class:
>\documentclass[12pt]{article}
>\makeatletter
>\let\old@item\item
>\def\item{%
>   \ifcase\@itemdepth\or
>     \fontsize{12.4pt}{12pt}\selectfont
>   \or
>     \fontsize{11.2pt}{11pt}\selectfont
>   \else
>     \fontsize{10pt}{10pt}\selectfont
>   \fi
>   \old@item
>}
>\makeatother
>\begin{document}
>\begin{itemize}
>\item level 1
>\begin{itemize}
>\item level 2
>\begin{itemize}
>\item level 3
>\end{itemize}
>\end{itemize}
>\end{itemize}
>\end{document}
>
>If you play a little with the numbers, you will see
>that the size of the item label also changes. That
>might not be the effect that we want, but we forget
>about that for now as you will insert a fixed size
>picture for it anyway.
>
>Now, if we want to port this `solution' to prosper,
>we have to take into account that prosper redefines
>\item itself (in a dubious way [1]) and that it stores
>the original \item definition in \orig@item so that
>it can use that internally again. So here, we need
>to redefine \orig@item and prosper will pick that
>up and set \let\item\orig@item internally.
>
>\documentclass[pdf]{prosper}
>\makeatletter
>\let\latex@item\orig@item
>\def\orig@item{%
>   \ifcase\@itemdepth\or
>     \fontsize{12.4pt}{12pt}\selectfont
>   \or
>     \fontsize{11.2pt}{11pt}\selectfont
>   \else
>     \fontsize{10pt}{10pt}\selectfont
>   \fi
>   \latex@item
>}
>\makeatother
>\begin{document}
>\begin{slide}{test}
>\begin{itemize}
>\item level 1
>\begin{itemize}
>\item level 2
>\begin{itemize}
>\item level 3
>\end{itemize}
>\end{itemize}
>\end{itemize}
>\end{slide}
>\end{document}
>
>For completeness, here's the `long' solution using
>a redefinition of \@item. This works without modification
>in prosper, but notice that enumerates are not covered
>(also not by the solutions above).
>
>\documentclass[12pt]{article}
>\makeatletter
>\def\@item[#1]{%
>   \if@noparitem
>     \@donoparitem
>   \else
>     \if@inlabel
>       \indent \par
>     \fi
>     \ifhmode
>       \unskip\unskip \par
>     \fi
>     \if@newlist
>       \if@nobreak
>         \@nbitem
>       \else
>         \addpenalty\@beginparpenalty
>         \addvspace\@topsep
>         \addvspace{-\parskip}%
>       \fi
>     \else
>       \addpenalty\@itempenalty
>       \addvspace\itemsep
>     \fi
>     \global\@inlabeltrue
>   \fi
>   \everypar{%
>     \@minipagefalse
>     \global\@newlistfalse
>     \if@inlabel
>       \global\@inlabelfalse
>       {\setbox\z@\lastbox
>        \ifvoid\z@
>          \kern-\itemindent
>        \fi}%
>       \box\@labels
>       \penalty\z@
>     \fi
>     \if@nobreak
>       \@nobreakfalse
>       \clubpenalty \@M
>     \else
>       \clubpenalty \@clubpenalty
>       \everypar{}%
>     \fi}%
>   \if@noitemarg
>     \@noitemargfalse
>     \if@nmbrlist
>       \refstepcounter\@listctr
>     \fi
>   \fi
>   \sbox\@tempboxa{\makelabel{#1}}%
>   \global\setbox\@labels\hbox{%
>     \unhbox\@labels
>     \hskip \itemindent
>     \hskip -\labelwidth
>     \hskip -\labelsep
>     \ifdim \wd\@tempboxa >\labelwidth
>       \box\@tempboxa
>     \else
>       \hbox to\labelwidth {\unhbox\@tempboxa}%
>     \fi
>     \hskip \labelsep}%
>   \ifcase\@itemdepth\or
>     \fontsize{12.4pt}{12pt}\selectfont
>   \or
>     \fontsize{11.2pt}{11pt}\selectfont
>   \else
>     \fontsize{10pt}{10pt}\selectfont
>   \fi
>   \ignorespaces}
>\makeatother
>\begin{document}
>\begin{itemize}
>\item level 1
>\begin{itemize}
>\item level 2
>\begin{itemize}
>\item level 3
>\end{itemize}
>\end{itemize}
>\end{itemize}
>\end{document}
>
>Hope that helps.
>
>-Hendri.
>
>[1] see, for instance, bug 3:
>http://wikiprosper.bbclone.de/index.php?pagename=ProsperBugs
>
>
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