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Code Editor : tplists.sty

%%
%% This is file `tplists.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% texpower-addons.dtx  (with options: `tplists')
%% 
%% --------------------------------------------------------------
%% TeXPower bundle - dynamic online presentations with LaTeX
%% Copyright (C) 1999-2004 Stephan Lehmke
%% 
%% This program is free software; you can redistribute it and/or
%% modify it under the terms of the GNU General Public License
%% as published by the Free Software Foundation; either version 2
%% of the License, or (at your option) any later version.
%% 
%% This program is distributed in the hope that it will be useful,
%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
%% GNU General Public License for more details.
%% --------------------------------------------------------------
%% 
%% The list of all files belonging to the TeXPower bundle is
%% given in the file `00readme.txt'.
%% 
% ===============================================================================
% File:      tplists.sty
%
% Function:  The package provides dynamic lists. The following
%            environments/lists are available
%            1) 'stepenum', 'stepitem', 'stepeqlist', 'stepcompactenum'
%               'stepcompactitem' and 'stepcompacteqlist'.
%            2) 'flipenum', 'flipitem', 'flipeqlist', 'flipcompactenum',
%               'flipcompactitem',  and 'flipcompacteqlist'
%            3) 'dimenum', 'dimitem', 'dimeqlist', 'dimcompactenum',
%               'dimcompactitem',  and 'dimcompacteqlist'
%            where 'step' is short for stepped, 'flip' for flipped and
%            'dim' for dimmed. The packages 'paralist' and 'eqlist'
%            must be loaded before this package to use the *eqlist and
%            *compact* lists.
%
% Usage:     The package is loaded in the normal fashion, eg:
%              \usepackage{tplists}
%            The following options exist:
%              pausestep - makes step* lists use \pause
%            The package works better (the lists look better) if TeXPower
%            uses colors.
%
%            All lists (except *eqlist) takes an optional parameter
%            adding to the indent of the list. Note that dim* and
%            flip* lists do not nest, and that step* lists inside
%            dim*/flip* will behave as a dim*/flip* list respectively.
%
%            Example:
%
%              \documentclass[a4paper]{article}
%              \usepackage[darkbackground,display]{texpower}
%              \usepackage{tplists}
%              \begin{document}
%              \begin{flipitem}[2cm]
%                \item Before
%                  \begin{enumerate}[1cm]
%                    \item An item
%                    \item Another item
%                   \end{enumerate}
%                \item After
%              \end{flipitem}
%              \end{document}
%
%            (The normal 'itemize' and 'enumerate' lists are modified
%            so they accept the optional parameter and work nested
%            with the new lists.)
%
% Issues:    The step* lists use \vstep (as default) which give weird results with
%            structured backgrounds. Using the pausestep option fixes this, but then
%            you can't nest step* lists inside dim* or flip* lists.
%            There are also some unresolved problems when using french babel.
%
% History:   2003/10/03 v0.1:
%              * first public release
%            2003/10/04 v0.1a:
%              * removed redefinition of eqlist (since it doesn't work)
%            2003/10/07 v0.1b:
%              * corrected some typos in this documentation
%              * added option pausestep
%              * made dim* (and all variants of flip*) lists work without
%                colors by using boldface for active items.
%

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{tplists}%
  [2003/10/07 v0.1b Dynamic Lists using TeXPower]

%% Packages
\RequirePackage{texpower}
% Compact enum/item.
\newboolean{tpl@paralist}
\@ifpackageloaded{paralist}{\setboolean{tpl@paralist}{true}}{}
% Lists with equal indentation.
\newboolean{tpl@eqlist}
\@ifpackageloaded{eqlist}{\setboolean{tpl@eqlist}{true}}{}

%% Options
% Use \pause for steplists (too avoid problems with structured backgrounds).
\newboolean{tpl@pausestep}
\DeclareOption{pausestep}{\setboolean{tpl@pausestep}{true}}

\ProcessOptions

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                  %
%  Flipped/dimmed/stepped itemize/enumerate/eqlist environment.    %
%                                                                  %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

% '\iftpl@instepenv' indicates if we are in some kind of stepped list
% environment. '\iftpl@indimenv' / '\tpl@inflipenv' indicates that we are
% using one of the stepwise environments from texpower (that doesn't
% nest). '\iftpl@inpausestepenv' indicates that we are in a stepped
% list that uses \pause.

% using 'tpl@' as prefix for internals.
\newif\iftpl@instepenv \tpl@instepenvfalse
\newif\iftpl@inpausestepenv \tpl@inpausestepenvfalse
\newif\iftpl@indimenv  \tpl@indimenvfalse
\newif\iftpl@inflipenv \tpl@inflipenvfalse
\let\oldenumerate=\enumerate
\let\olditemize=\itemize
\let\endoldenumerate=\endenumerate
\let\endolditemize=\enditemize
\ifthenelse{\boolean{tpl@eqlist}}{%
\let\oldeqlist=\eqlist
\let\endoldeqlist=\endeqlist
}{}
\ifthenelse{\boolean{tpl@paralist}}{%
\let\oldcompactenum=\compactenum
\let\oldcompactitem=\compactitem
\let\endoldcompactenum=\endcompactenum
\let\endoldcompactitem=\endcompactitem
}{}

%%% Defining \tpl@collect@body - command used to scan the list
%%% environments. Definition borrowed from 'amsmath.sty' - slightly
%%% modified to allow for 'long' arguments
\let\tpl@nx\noexpand
\let\tpl@xp\expandafter
\newtoks\tpl@emptytoks
\newtoks\tpl@envbody
\long\def\tpl@addto@envbody#1{\global\tpl@envbody\tpl@xp{\the\tpl@envbody#1}}
\def\tpl@collect@body#1{%
  \tpl@envbody{\tpl@xp#1\tpl@xp{\the\tpl@envbody}}%
  \edef\tpl@process@envbody{\the\tpl@envbody\tpl@nx\end{\@currenvir}}%
  \tpl@envbody\tpl@emptytoks \def\begin@stack{b}%
  \begingroup
  \tpl@xp\let\csname\@currenvir\endcsname\tpl@collect@@body
  \edef\tpl@process@envbody{\tpl@xp\tpl@nx\csname\@currenvir\endcsname}%
  \tpl@process@envbody
}
\long\def\tpl@push@begins#1\begin#2{%
  \ifx\end#2\else b\tpl@xp\tpl@push@begins\fi
}
\long\def\tpl@collect@@body#1\end#2{%
  \edef\begin@stack{\tpl@push@begins#1\begin\end \tpl@xp\@gobble\begin@stack}%
  \ifx\@empty\begin@stack
    \endgroup
    \@checkend{#2}%
    \tpl@addto@envbody{#1}%
  \else
    \tpl@addto@envbody{#1\end{#2}}%
  \fi
  \tpl@process@envbody
}

%%% Defining command '\tpl@addmargin' used to add a length to
%%% the leftmargin of the current level in a list.
\def\tpl@addmargin#1{%
  \advance\@listdepth 1
  \addtolength{\csname leftmargin\romannumeral\@listdepth\endcsname}{#1}
  \advance\@listdepth -1
}

%%% Defining a flipped step command.
\ifthenelse{\boolean{TPcolor}}% Can we use colors?
{% Yes. In this case highlighting is implemented by switching color.
  \def\tpl@flipstep% Note that \tpl@flipstep takes no argument.
  {%
    \step{\ifthenelse{\boolean{firstactivation}}%
      {\color{textcolor}}%
      {\color{inactivecolor}}%
    }%
    }%
}
{% No. In this case highlighting is implemented by putting the item in boldface.
  \def\tpl@flipstep
  {%
    \step{\ifthenelse{\boolean{firstactivation}}%
    {\bfseries}{\mdseries}}
    }%
  }

%%% Defining a dimmed step command.
\ifthenelse{\boolean{TPcolor}}% Can we use colors?
{% Yes. In this case highlighting is implemented by using \dstep
  \def\tpl@dimstep% Note that \tpl@flipstep takes no argument.
  {%
    \dstep
    }%
}
{% No. In this case highlighting is implemented by putting the item in boldface.
  \def\tpl@dimstep
  {%
    \step{\bfseries}
    \ifthenelse{\boolean{active}}{}{\mdseries}%
    }%
  }

%%% Defining flipped stepped - itemize / enumerate / eqlist
%%% compact itemize / compact enumerate / compact eqlist - environments.
\newenvironment{flipitem}[1][0cm]{%
  \tpl@addmargin{#1}
  \tpl@collect@body\@flipitem}%
 {\global\@ignoretrue}
\newenvironment{flipenum}[1][0cm]{%
  \tpl@addmargin{#1}
  \tpl@collect@body\@flipenum}%
 {\global\@ignoretrue}
\ifthenelse{\boolean{tpl@eqlist}}{%
\newenvironment{flipeqlist}[1][0cm]{%
  \tpl@collect@body\@flipeqlist}%
 {\global\@ignoretrue}
\newenvironment{flipcompacteqlist}[1][0cm]{%
  \tpl@collect@body\@flipcompacteqlist}%
 {\global\@ignoretrue}
}{}
\ifthenelse{\boolean{tpl@paralist}}{%
\newenvironment{flipcompactitem}[1][0cm]{%
  \tpl@addmargin{#1}
  \tpl@collect@body\@flipcompactitem}%
 {\global\@ignoretrue}
\newenvironment{flipcompactenum}[1][0cm]{%
  \tpl@addmargin{#1}
  \tpl@collect@body\@flipcompactenum}%
 {\global\@ignoretrue}
}{}

\newcommand\@fliplist[2]{%
  \iftpl@indimenv
    \PackageError{tplists}{%
      dim* and flip* environments do NOT nest}{%
      Do not continue! Type 'q' to stop and fix the nested list.
    }
  \else\iftpl@instepenv
    \begin{#1}
    \let\hidestepcontents=\displaystepcontents
    \renewcommand{\item}{\tpl@flipstep\tpl@origitem}%
    #2
    \end{#1}%
  \else
    \iftpl@inpausestepenv\let\liststepwise=\stepwise\fi
    \liststepwise[\let\hidestepcontents=\displaystepcontents]{%
      \begin{#1}
      \iftpl@inpausestepenv\else
        \iftpl@instepenv\else\let\tpl@origitem=\item\fi
      \fi
      \tpl@instepenvtrue
      \tpl@inflipenvtrue
      \renewcommand{\item}{\tpl@flipstep\tpl@origitem}%
      #2
      \step{}
      \end{#1}}
  \fi\fi
}

\newcommand\@flipitem[1]{%
 \@fliplist{olditemize}{#1}}
\newcommand\@flipenum[1]{%
 \@fliplist{oldenumerate}{#1}}
\ifthenelse{\boolean{tpl@eqlist}}{%
\newcommand\@flipeqlist[1]{%
 \@fliplist{oldeqlist}{#1}}
\newcommand\@flipcompacteqlist[1]{%
 \@fliplist{compacteqlist}{#1}}
}{}
\ifthenelse{\boolean{tpl@paralist}}{%
\newcommand\@flipcompactitem[1]{%
 \@fliplist{oldcompactitem}{#1}}
\newcommand\@flipcompactenum[1]{%
 \@fliplist{oldcompactenum}{#1}}
}{}

%%% Defining dimmed stepped - itemize / enumerate / eqlist /
%%% compact itemize / compact enumerate / compact eqlist - environments.
\newenvironment{dimitem}[1][0cm]{%
  \tpl@addmargin{#1}
  \tpl@collect@body\@dimitem}%
 {\global\@ignoretrue}
\newenvironment{dimenum}[1][0cm]{%
  \tpl@addmargin{#1}
  \tpl@collect@body\@dimenum}%
 {\global\@ignoretrue}
\ifthenelse{\boolean{tpl@eqlist}}{%
\newenvironment{dimeqlist}[1][0cm]{%
  \tpl@collect@body\@dimeqlist}%
 {\global\@ignoretrue}
\newenvironment{dimcompacteqlist}[1][0cm]{%
  \tpl@collect@body\@dimcompacteqlist}%
 {\global\@ignoretrue}
}{}
\ifthenelse{\boolean{tpl@paralist}}{%
\newenvironment{dimcompactitem}[1][0cm]{%
  \tpl@addmargin{#1}
  \tpl@collect@body\@dimcompactitem}%
 {\global\@ignoretrue}
\newenvironment{dimcompactenum}[1][0cm]{%
  \tpl@addmargin{#1}
  \tpl@collect@body\@dimcompactenum}%
 {\global\@ignoretrue}
}{}

\newcommand\@dimlist[2]{%
  \iftpl@inflipenv
    \PackageError{tplists}{%
      dim* and flip* environments do NOT nest}{%
      Do not continue! Type <q> to stop and fix the nested list.
    }
  \else\iftpl@instepenv
    \begin{#1}
    \renewcommand{\item}{\tpl@dimstep\tpl@origitem}%
    #2
    \end{#1}%
  \else
    \iftpl@inpausestepenv\let\liststepwise=\stepwise\fi
    \liststepwise{%
      \begin{#1}
      \iftpl@inpausestepenv\else
        \iftpl@instepenv\else\let\tpl@origitem=\item\fi
      \fi
      \tpl@instepenvtrue
      \tpl@indimenvtrue
      \renewcommand{\item}{\tpl@dimstep\tpl@origitem}%
      #2
      \end{#1}}
  \fi\fi
}

\newcommand\@dimitem[1]{%
 \@dimlist{olditemize}{#1}}
\newcommand\@dimenum[1]{%
 \@dimlist{oldenumerate}{#1}}
\ifthenelse{\boolean{tpl@eqlist}}{%
\newcommand\@dimeqlist[1]{%
 \@dimlist{oldeqlist}{#1}}
\newcommand\@dimcompacteqlist[1]{%
 \@dimlist{compacteqlist}{#1}}
}{}
\ifthenelse{\boolean{tpl@paralist}}{%
\newcommand\@dimcompactitem[1]{%
 \@dimlist{oldcompactitem}{#1}}
\newcommand\@dimcompactenum[1]{%
 \@dimlist{oldcompactenum}{#1}}
}{}

%%% Defining stepped - itemize / enumerate / eqlist /
%%% compact itemize / compact enumerate / compact eqlist - environments.
\newenvironment{stepitem}[1][0cm]{%
  \tpl@addmargin{#1}
  \tpl@collect@body\@stepitem}%
 {\global\@ignoretrue}
\newenvironment{stepenum}[1][0cm]{%
  \tpl@addmargin{#1}
  \tpl@collect@body\@stepenum}%
 {\global\@ignoretrue}
\ifthenelse{\boolean{tpl@eqlist}}{%
\newenvironment{stepeqlist}[1][0cm]{%
  \tpl@collect@body\@stepeqlist}%
 {\global\@ignoretrue}
\newenvironment{stepcompacteqlist}[1][0cm]{%
  \tpl@collect@body\@stepcompacteqlist}%
 {\global\@ignoretrue}
}{}
\ifthenelse{\boolean{tpl@paralist}}{%
\newenvironment{stepcompactitem}[1][0cm]{%
  \tpl@addmargin{#1}
  \tpl@collect@body\@stepcompactitem}%
 {\global\@ignoretrue}
\newenvironment{stepcompactenum}[1][0cm]{%
  \tpl@addmargin{#1}
  \tpl@collect@body\@stepcompactenum}%
 {\global\@ignoretrue}
}{}

\ifthenelse{\boolean{tpl@pausestep}}{%
% Using \pause for step* lists
\newcommand\@steplist[2]{%
  \iftpl@inflipenv
    \PackageError{tplists}{%
      flip* followed by step* environment does NOT work \MessageBreak
      when the pausestep option is used}{%
      Do not continue! Type <q> to stop and fix the nested list.
    }
  \else\iftpl@indimenv
    \PackageError{tplists}{%
      dim* followed by step* environment does NOT work \MessageBreak
      when the pausestep option is used}{%
      Do not continue! Type <q> to stop and fix the nested list.
    }
  \else
    \begin{#1}
      \iftpl@inpausestepenv\else\let\tpl@origitem=\item\fi
      \tpl@inpausestepenvtrue
      \renewcommand{\item}{\pause\tpl@origitem}%
      #2
    \end{#1}
  \fi\fi
}
}{
% Using \liststepwise for step* lists
\newcommand\@steplist[2]{%
  \iftpl@inflipenv
    \begin{#1}
    \renewcommand{\item}{\tpl@flipstep\tpl@origitem}
    #2
    \end{#1}%
  \else\iftpl@indimenv
    \begin{#1}
    \renewcommand{\item}{\dstep\tpl@origitem}%
    #2
    \end{#1}%
  \else\iftpl@instepenv
    \begin{#1}
    \renewcommand{\item}{\vstep\tpl@origitem}%
    #2
    \end{#1}%
  \else
    \liststepwise{%
      \begin{#1}
      \iftpl@instepenv\else\let\tpl@origitem=\item\fi
      \tpl@instepenvtrue
      \renewcommand{\item}{\vstep\tpl@origitem}%
      #2
      \end{#1}}
  \fi\fi\fi
}
}

\newcommand\@stepitem[1]{%
 \@steplist{olditemize}{#1}}
\newcommand\@stepenum[1]{%
 \@steplist{oldenumerate}{#1}}
\ifthenelse{\boolean{tpl@eqlist}}{%
\newcommand\@stepeqlist[1]{%
 \@steplist{oldeqlist}{#1}}
\newcommand\@stepcompacteqlist[1]{%
 \@steplist{compacteqlist}{#1}}
}{}
\ifthenelse{\boolean{tpl@paralist}}{%
\newcommand\@stepcompactitem[1]{%
 \@steplist{oldcompactitem}{#1}}
\newcommand\@stepcompactenum[1]{%
 \@steplist{oldcompactenum}{#1}}
}{}

%%% Defining compact eqlist
\newenvironment{compacteqlist}[1][0cm]{%
  % \tpl@addmargin{#1}
  \begin{eqlist}[\parsep0pt\itemsep0pt]}%
 {\end{eqlist}}

%%% Redefining enumerate and itemize to handle changes made by
%%% introducing steps and leftmargini-option.
\renewenvironment{enumerate}[1][0cm]{%
  \tpl@addmargin{#1}
  \begin{oldenumerate}
    \iftpl@instepenv
      \renewcommand{\item}{\tpl@origitem}%
    \fi
 }%
 {\end{oldenumerate}}

\renewenvironment{itemize}[1][0cm]{%
  \tpl@addmargin{#1}
  \begin{olditemize}
    \iftpl@instepenv
      \renewcommand{\item}{\tpl@origitem}%
    \fi
 }%
 {\end{olditemize}}

%%% Redefining compactenum and compactitem to handle changes made by
%%% introducing steps and leftmargini-option.
\ifthenelse{\boolean{tpl@paralist}}{%
\renewenvironment{compactenum}[1][0cm]{%
  \tpl@addmargin{#1}
  \begin{oldcompactenum}
    \iftpl@instepenv
      \renewcommand{\item}{\tpl@origitem}%
    \fi
 }%
 {\end{oldcompactenum}}

\renewenvironment{compactitem}[1][0cm]{%
  \tpl@addmargin{#1}
  \begin{oldcompactitem}
    \iftpl@instepenv
      \renewcommand{\item}{\tpl@origitem}%
    \fi
 }%
 {\end{oldcompactitem}}
}{}
\endinput
%%
%% End of file `tplists.sty'.

${this.title}

Code Editor : tplists.sty