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authorKarl Berry <karl@freefriends.org>2008-07-01 00:56:32 +0000
committerKarl Berry <karl@freefriends.org>2008-07-01 00:56:32 +0000
commitf1b4d8820e16c9755c9387b90c93bb7e4e1047ca (patch)
tree8415d8e76cb691d6a8e9e4f9dd88d03e6f3704fd /Master
parent32177855a92f374d4d0ca22d403dd2c9d6cccf25 (diff)
obsolete on ctan
git-svn-id: svn://tug.org/texlive/trunk@9129 c570f23f-e606-0410-a88d-b1316a301751
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-% chngpage.sty
-%
-% Provides commands to change the page layout in the middle of a document,
-% and to robustly check for typesetting on odd or even pages.
-% Instructions for use are at the end of this file.
-%
-% Author: Peter Wilson (CUA) now at peter.r.wilson@boeing.com
-% (or pandgwilson@earthlink.net)
-% Copyright 2000, 2001, 2003 Peter R. Wilson
-%
-% This work may be distributed and/or modified under the
-% conditions of the LaTeX Project Public License, either
-% version 1.3 of this license or (at your option) any
-% later version.
-% The latest version of the license is in
-% http://www.latex-project.org/lppl.txt
-% and version 1.3 or later is part of all distributions of
-% LaTeX version 2003/06/01 or later.
-%
-% This work has the LPPL maintenance status "author-maintained".
-%
-% This work consists of this file.
-%
-%
-%
-\NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{chngpage}[2003/08/10 v1.2 change page layout]
-
-%% Note: internal package commands all include the string `cp@'
-%% new \if for the strict option
-\newif\ifcpstrict
- \cpstrictfalse
-
-%% Declare and process options
-\DeclareOption{strict}{\cpstricttrue}
-\ProcessOptions\relax
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% new commands for strict checking of odd/even page
-%% Works by writing a label and then checking its pageref
-%%
-% rewritten in v1.2 to handle roman, Roman, etc page numbers
-% as well as arabic; also eliminates special code to handle
-% hyperref. Based on the code in the memoir class.
-
-\newif\ifcpoddpage
-\newcounter{cp@cnt}
-\newcounter{cp@tempcnt}
-\newcommand{\cplabelprefix}{^_}
-
-\gdef\thecp@page{\the\c@page}
-\long\def\cp@protected@write#1#2#3{% % modified \protected@write
- \begingroup
- \let\thecp@page\relax
- #2%
- \let\protect\@unexpandable@protect
- \edef\reserved@a{\write#1{#3}}%
- \reserved@a
- \endgroup
- \if@nobreak\ifvmode\nobreak\fi\fi}
-
-\DeclareRobustCommand{\checkoddpage}{%
- \cpoddpagefalse
- \stepcounter{cp@cnt}\cplabel{\cplabelprefix\thecp@cnt}%
- \c@cp@tempcnt=\cp@labelref{\cplabelprefix\thecp@cnt}\relax
- \ifodd\c@cp@tempcnt\cpoddpagetrue\fi}
-
-\newcommand{\cplabel}[1]{\@bsphack
- \cp@protected@write\@auxout{}%
- {\string\newcplabel{#1}{\thecp@page}}%
- \@esphack}
-
-\newcommand{\newcplabel}[2]{{\global\@namedef{p@#1}{#2}}}
-
-\newcommand{\cp@labelref}[1]{%
- \expandafter\ifx\csname p@#1\endcsname\relax
- 0% % 0 if there is no label yet in aux file
- \else
- \csname p@#1\endcsname
- \fi}
-
-%% end newcommands for strict checking of odd/even page
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-%% copy of some of the code from the ifmtarg package to save requiring ifmtarg
-\begingroup
-\catcode`\Q=3
-\long\gdef\@ifmtarg#1{\@xifmtarg#1QQ\@secondoftwo\@firstoftwo\@nil}
-\long\gdef\@xifmtarg#1#2Q#3#4#5\@nil{#4}
-\endgroup
-
-%% set the page output parameters
-%\newcommand{\ch@ngetext}{%
-\DeclareRobustCommand{\ch@ngetext}{%
- \setlength{\@colht}{\textheight}\setlength{\@colroom}{\textheight}%
- \setlength{\vsize}{\textheight}\setlength{\columnwidth}{\textwidth}%
- \if@twocolumn%
- \advance\columnwidth-\columnsep \divide\columnwidth\tw@%
- \@firstcolumntrue%
- \fi%
- \setlength{\hsize}{\columnwidth}%
- \setlength{\linewidth}{\hsize}%
-}
-
-%\newcommand{\changetext}[5]{%
-\DeclareRobustCommand{\changetext}[5]{%
- \@ifmtarg{#1}{}{\addtolength{\textheight}{#1}}%
- \@ifmtarg{#2}{}{\addtolength{\textwidth}{#2}}%
- \@ifmtarg{#3}{}{\addtolength{\evensidemargin}{#3}}%
- \@ifmtarg{#4}{}{\addtolength{\oddsidemargin}{#4}}%
- \@ifmtarg{#5}{}{\addtolength{\columnsep}{#5}}%
- \ch@ngetext%
-}
-
-%\newcommand{\changepage}[9]{%
-\DeclareRobustCommand{\changepage}[9]{%
- \@ifmtarg{#1}{}{\addtolength{\textheight}{#1}}%
- \@ifmtarg{#2}{}{\addtolength{\textwidth}{#2}}%
- \@ifmtarg{#3}{}{\addtolength{\evensidemargin}{#3}}%
- \@ifmtarg{#4}{}{\addtolength{\oddsidemargin}{#4}}%
- \@ifmtarg{#5}{}{\addtolength{\columnsep}{#5}}%
- \ch@ngetext%
- \@ifmtarg{#6}{}{\addtolength{\topmargin}{#6}}%
- \@ifmtarg{#7}{}{\addtolength{\headheight}{#7}}%
- \@ifmtarg{#8}{}{\addtolength{\headsep}{#8}}%
- \@ifmtarg{#9}{}{\addtolength{\footskip}{#9}}%
-}
-
-
-\newenvironment{adjustwidth}[3][\@empty]{%
- \begin{list}{}{%
- \topsep\z@%
- \listparindent\parindent%
- \parsep\parskip%
- \@ifmtarg{#2}{\setlength{\leftmargin}{\z@}}{\setlength{\leftmargin}{#2}}%
- \@ifmtarg{#3}{\setlength{\rightmargin}{\z@}}{\setlength{\rightmargin}{#3}}%
- \ifx\@empty #1\relax \else
- \cpoddpagefalse
- \ifcpstrict\checkoddpage\else
- \ifodd\c@page\cpoddpagetrue\fi
- \fi
- \ifcpoddpage\else % even numbered page
- \@ifmtarg{#3}{\setlength{\leftmargin}{\z@}}{\setlength{\leftmargin}{#3}}%
- \@ifmtarg{#2}{\setlength{\rightmargin}{\z@}}{\setlength{\rightmargin}{#2}}%
- \fi
- \fi}
- \item[]}{\end{list}}
-
-
-
-\endinput
-
-% Usage:
-% ------
-%
-%%%%%%%%%%%%%
-% \changetext
-%%%%%%%%%%%%%
-% The \changetext command is for changing the size and horizontal position
-% of the text block on a page. The command takes 5 arguments, each of which
-% is a length or is empty. i.e.,
-%
-% \changetext{textheight}{textwidth}{evensidemargin}{oddsidemargin}{columnsep}
-%
-% The given lengths are added to the corresponding current lengths and
-% the remainder of the current page is typeset using the changed text block
-% layout. The new layout remains in effect until another \change... command
-% is issued.
-%
-%%%%%%%%%%%%%
-% \changepage
-%%%%%%%%%%%%%
-% The \changepage command is for changing the general layout of
-% a page. The command takes 9 arguments, each of which is a length or is empty.
-% The first 5 arguments are the same as for \changetext and have the same effect.
-% The last four arguments are:
-%
-% \changepage{5 args}{topmargin}{headheight}{headsep}{footskip}
-%
-% These lengths are added to the corresponding current lengths and
-% thus modify the vertical positions of the elements of the page. The
-% remainder of the current page is typeset using the changed text block
-% and page layout. The new layout remains in effect until another
-% \change... command is issued.
-%
-% NOTE 1: Not supplying a value for a length argument is equivalent
-% to giving it a zero length value.
-%
-% NOTE 2: For any given page, everything is constant except for the textwidth
-% and columnsep (for example, what is the meaning of two
-% topmargins on a single column page?).
-% It is therefore best to change anything else at the
-% start of a new page. Further, any changes only apply to whole
-% paragraphs. If you want an odd shaped paragraph use either
-% the hanging package or the TeX \parshape command.
-%
-% For example, to change from single column pages to double column
-% pages where the text block is both shorter and wider, then to revert
-% back to the initial layout:
-% ... single column normal page
-% \newpage % or \clearpage
-% \changetext{-5\baselineskip}{10em}{-5em}{-5em}{}
-% \twocolumn
-% ... two column pages
-% \clearpage
-% \changetext{5\baselineskip}{-10em}{5em}{5em}{}
-% \onecolumn
-% ... normal pages
-%
-% Note the adjustments to the margins which will keep the vertical centerline
-% of the textblock at the same position on the page.
-%
-% As another example, to increase the width of a single paragraph:
-%
-% \changetext{0pt}{5em}{}{}{}%
-% Start of wider paragraph text ...
-% ... end of paragraph.
-%
-% \changetext{0pt}{-5em}{}{}{}
-% Start of a normal paragraph ...
-%
-% Under some circumstances you can include a \change... command as part of
-% the argument to \afterpage (from the afterpage package) and it may work.
-% Similarly it may work in a heading style used for \thispagestyle to change
-% a single page.
-%
-%%%%%%%%%%%%%
-% adjustwidth
-%%%%%%%%%%%%%
-% Within an adjustwidth environment the left and right margins can be
-% adjusted. The environment takes one optional argument and two required
-% length arguments:
-%
-% \begin{adjustwidth}[]{leftmargin}{rightmargin}
-%
-% A positive length value will increase the relevant margin (shortening
-% the text lines) while a negative length value will decrease the margin
-% (lengthening text lines). An empty length argument means no change
-% to the margin. At the end of the environment the margins revert to
-% their original values.
-%
-% For example, to extend the text into the right margin:
-% \begin{adjustwidth}{}{-8em}
-%
-% Any appearance of the optional argument (even just []) will cause
-% the values of the margins to switch between odd and even pages.
-%
-% If the document is being set twosided it might be advantageous
-% to have any wider text extending into the outside margin. This
-% could be done via the optional argument, as:
-% \begin{adjustwidth}[]{}{-8em}
-%
-% To have the adjusted text horizontally centered with respect to
-% any surrounding text, the margins should be adjusted equally:
-% \begin{adjustwidth}{-4em}{-4em}
-%
-% For interest, \begin{quotation} is pretty much equivalent
-% to \begin{adjustwidth}{2.5em}{2.5em}
-%
-% The environment may also be used inside a float if the contents are
-% a bit too wide for the text block, but can still fit within the physical
-% page:
-% \begin{figure}
-% \begin{adjustwidth}{-2em}{-2em}
-% \includegraphics{wide}
-% \caption{Wide figure}
-% \end{adjustwidth}
-% \end{figure}
-%
-% Sometimes, because of the asynchronous nature of the TeX output
-% routine, the margin switching may be incorrect (like \marginpar sometimes)
-% near the top of a page. This can be corrected by using the package
-% option `strict' (i.e., \usepackage[strict]{chngpage}), which causes
-% adjustwidth to use the \checkoddpage command (see below).
-%
-% A disadvantage of the strict option is that the package generates
-% a new label for each adjustwidth environment, and TeX may run out
-% of space if there are an excessive number of labels in the document.
-%
-% Whether or not the strict option is used, `strict adjustwidths'
-% can be turned on by putting the command \cpstricttrue before
-% the environment, and turned of by using \cpstrictfalse.
-%
-% NOTE: In a twocolumn document, the adjustwidth environment
-% treats both columns equally. For example, if the width is meant
-% to be wider at the outer margin, then on odd pages the extra width
-% will be at the right of any column, and on even pages the extra
-% will be at the left of any column. You can get interesting effects
-% by careful hand tuning on two column pages.
-%
-%%%%%%%%%%%%%%%
-% \checkoddpage
-%%%%%%%%%%%%%%%
-% The \checkoddpage command can be used anywhere in the body of
-% a document to determine if TeX is typesetting on an odd or
-% even numbered page. If on an odd page then \ifcpoddpage is
-% set TRUE, otherwise (on an even page) \ifcpoddpage is set
-% FALSE.
-%
-% This works by the \checkoddpage command generating a label and
-% then checking the \pageref for the label (actually, a special version
-% of \pageref is required and is used internally by \checkoddpage).
-% This mechanism requires at least two LaTeX passes to ensure that
-% the labels have settled (on the initial pass there will be no labels
-% in the *.aux file to be checked).
-%
-% The label identifier is composed of the command \cplabelprefix
-% and an automatically generated number. \cplabelprefix, initially
-% defined as `^_', can be changed in the preamble if it will cause
-% a clash with any author-defined labels. The default labels will
-% be of the form `^_N' where N is a positive integer.
-%
-% Changes in version 1.2 (2003/08/10)
-% ----------------------
-% o Fixed \checkoddpage to handle page numbers other than arabic
-% o Eliminated special \checkoddpage code for hyperref
-%
-% Changes in version 1.1c (2001/02/24)
-% -----------------------
-% o Fixed problem when used with the calc package
-% (can't do \setcounter{cp@tempcnt}{\cp@pageref{....}}
-% o Fixed problem when used with the hyperef package
-% (hyperref adds new arguments to \newlabel in the *.aux file)
-%
-% Changes in version 1.1b (2001/01/31)
-% -----------------------
-% o Added strict option for robust adjustwidth; checks odd/even
-% pages via labels instead of by the page counter.
-%
-% Changes in version 1.1a (2001/01/18)
-% -----------------------
-% o Added missing {} in last 4 arguments of \changepage
-%
-% Changes in version 1.1 (2000/07/22)
-% ----------------------
-% o Empty arguments made available
-% o Added adjustwidth environment
-%
-%
-% Peter W.
-%
-%