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% Copyright (C) 2010 by Robert Marik &lt;marik@mendelu.cz&gt;
% -----------------------------------------------------
% 
% This file may be distributed and/or modified under the conditions of
% the LaTeX Project Public License, either version 1.2 of this license
% or (at your option) any later version.  The latest version of this
% license is in:
%
%    http://www.latex-project.org/lppl.txt
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    [2013/08/05 v0.95a ocgtools.dtx  file]
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%   \changes{v0.5}{2010/04/01}{First public version}
%   \changes{v0.6}{2010/04/10}{Keeping document's dirty for Adobe
%   Acrobat users} \changes{v0.7}{2010/05/01}{Each (mini)text layer
%   can get its own colors, fixed layerHshift and layerVshift macros,
%   options \texttt{inactive} and \texttt{active}}
%   \changes{v0.8}{2010/05/10}{Minor fix related to fancytooltips
%   package} \changes{v0.8a}{2010/11/19}{Minor fix related to color in
%   new eforms package} \changes{v0.9}{2010/12/18}{fixcolor option,
%   options processed by xkeyval, parameter allowed to transparent
%   option} \changes{v0.91}{2011/01/25}{support for pictures from
%   multipage PDF files} \changes{v0.95}{2013/06/24}{fixcolor option
%   replaced by /S /Transparency /I true /CS /DeviceRGB, if
%   \texttt{ocg-p.sty} has been loaded before, do not load
%   \texttt{ocg.sty}} \changes{v0.95a}{2013/08/05}{Fix for TeXlive
%   2013}
%
% \GetFileInfo{ocgtools.dtx}
%
% \DoNotIndex{\newcommand,\newenvironment,\def}
%
% \title{The \textsf{ocgtools} package\thanks{This document
%     corresponds to \textsf{ocgtools}~\fileversion, dated \filedate.}
%   \thanks{Supported by grant 131/2010 of Higher
%     Education Development Fund (FRV\v S) }} \author{Robert Ma\v r\'\i k \\
%   \texttt{marik@mendelu.cz}}
%
% \maketitle
%
% \section{Introduction}
%
% The package |ocgtools| is designed to insert OCG (Optional Content
% Group) into PDF presentations. From the user's point of view, the
% package allows to insert in an comfortable way any \TeX{} material
% into separate layer in PDF document and insert links which toggle
% this layer on/off. Hence parts of PDF document like formatted text,
% tables, math formulas or graphics can be turned to visible or
% invisible state by clicking active links or buttons.
%
% Similar packages are |cooltooltips|, |pdfcomment|, |AcroTeX| and
% |fancytooltips|. In contrast to |cooltooltips| and |pdfcomment|, we
% can work with any \TeX{} material, not only plain text. In contrast
% to |fancytooltips|, no external file is necessary and more
% minilayers (see below) can be opened simultaneously on one page.
% However, |fancytooltips| and |ocgtools| can be combined in the same
% document, even on the same page\footnote{remember to load
%   fancytooltips as the first package}.  |AcroTeX| has far more
% possibilities than |ocgtools|, but has three disadvantages: (1)
% limited support for |pdftex| (no layers with |pdftex| driver) (2)
% PDF file needs post-processing (3) for the post-processing the
% non-free Adobe Acrobat Professional is necessary.  However, the user
% of |ocgtools| must have |AcroTeX| installed, since we use its
% capability to insert buttons and JavaScripts into document (|eforms|
% and |insdljs| packages).
%
% Two types of OCG objects can be inserted 
% \begin{itemize} 
% \item \textit{layers}: OCG's which span across the whole size of paper
%   (scaled if necessary) 
% \item \textit{minilayers}: OCG's which have their natural size and
%   are placed somewhere close to the link which toggles them on/off.
% \end{itemize}
%
% The user should use viewer which allows to hide/reveal layers by
% JavaScript. This includes especially Adobe Reader. Some limited
% functionality is also in Foxit Reader (see the option |nobutton|
% below). In some other viewers (like |xpdf|) users see red warning on
% the first page (see |\ocgtools@msg|), all layers are visible and
% cannot be hidden. 
%
% \marginpar{\texttt{Important comment!}}\textbf{\color{red} Big
%   warning:} Unfortunately, with this package you may make your PDF
% files \textbf{less portable} even if you use Adobe Reader! Till now,
% we observed the following problems (for known problems not related
% to portability se the end of this manual):
% \begin{itemize}
% \item jpg pictures may look darker when using \texttt{transparent}
%   option and \textbf{Linux} version of Adobe Reader -- Adobe Reader
%   switches to different rendering method which seems to be system
%   dependent. Hope, Adobe fixes this problem soon. You can also try
%   to use |fixcolor| option to solve this problem.
% \item The layer with initial message on the first page which should
%   be hidden to the users of Adobe Reader is sometimes still visible,
%   if the PDF file is opened in Internet browser. From this reason,
%   layer \texttt{ocgtools0} is switched on and then off when
%   initializing PDF document. Hope, this workaround solves the
%   problem. If not, report the problem with a minimal example, please.
% \end{itemize}
%
% \section{Examples} Several examples are distributed with the
% package. We have one minimal example, one example which shows
% cooperation with |preview.sty| and mainly -- examples which show
% cooperation with three most popular packages to build
% presentations. This includes |web.sty|, |pdfscreen.sty| and
% |beamer.cls|. We have three demo files for each -- with no panel,
% with panel on the right and with panel on the left. All examples can
% be recompiled by running |ocgtools-test.bat| on Windows and
% |ocgtools-test.sh| on Linux.
%
% \section{Usage}
%
% \subsection{Compilation}
% All the packages we use are on CTAN or in \TeX live2009. The file
% |ocg.sty| is a part of |asymptote| package\footnote{Do not
% interchange with the |ocg.sty| provided by \"Osterreichische
% Computer Geselshafft. The correct file |ocg.sty| is at
% \url{http://www.tug.org/svn/texlive/trunk/Master/texmf/tex/latex/asymptote/ocg.sty}}.
% |AcroTeX| is quite old on CTAN but the version on CTAN works well.
% New version of |AcroTeX| is at |www.acrotex.net|, if necessary.
%
% \bigskip \textbf{Prerequisites}: Only |pdflatex| is tested. The
% route via |dvips| or |dvipdfm| is not (yet?) supported (this
% restriction follows from |transparent.sty| package). To work with
% the package load |color.sty| and |hyperref.sty| packages. (This is
% usually done automatically by most packages which are used to build
% PDF presentations. If not, these packages are loaded by |ocgtools|
% automatically as soon as |\definecolor| and |\href| remain
% undefined, respectively.) You may use also |xcolor.sty|, but this
% package is not compatible with |transparent| option. \bigskip
%
% You have to compile your |.tex| file \textit{three times} (!). If
% you change your document and create new layer, you have to compile
% three times again. After most changes (which include change in
% position of but not the number of layers) you have to compile twice
% to put layers on correct position. If you change the content of text
% layers or minilayers, one compilation is sufficient.
%
% If \texttt{ocg-p.sty} has been loaded before the
% \texttt{ocgtools.sty}, we use \texttt{ocg-p.sty} to insert
% layers. Othewise we use \texttt{ocg.sty}.
%
%
% \subsection{Package options}
% Load package |ocgtools.sty| as usual:
% \cs{usepackage}\oarg{options}|{ocgtools}|.  Options include:
% \begin{description}
% \item[\texttt{transparent}] Layers produced by |\ocgtext| and
%   |\ocgpicture| in fact do not span over the whole page, but the
%   material of layer is scaled to some reasonable size (we keep
%   aspect ratio and the width and height are not bigger than
%   \DescribeMacro{\ocgtools@maxheight}|\ocgtools@maxheight| and
%   \DescribeMacro{\ocgtools@maxwidth} |\ocgtools@maxwidth|). If the
%   layer is activated, the page is covered by a uniform color |ocgbg|
%   and the layer is placed on the top. The options |transparent|
%   makes the color |ocgbg| transparent. Looks cool, but it could be
%   slow and could change some colors of bitmap pictures (and this
%   behavior seems to be system dependent -- looks differently on
%   Linux and differently on Windows). The transparency is achieved by
%   putting the command |\ocgtools@transparent| on appropriate place.
%   The default transparency is 0.5. Use something like 
%   |\usepackage[transparent=0.8]{ocgtools}| to override.
% \item[\texttt{nobutton}] The pages with active layers have a
%   transparent button which can be used to hide this layer. The user
%   simply clicks anywhere and the layers become hidden. In some
%   viewers (like Foxit Reader) the button is not 100\% transparent.
%   This option allows not to include the big button to hide layers.
%   The layers can be closed by clicking the red cross
%   below.
% \item[\texttt{insertvisible}] In some rare cases problems with OCG's
%   occur on Windows installation of \TeX. Temporary (I hope)
%   workaround is to use this option, which inserts OCG's as visible.
%   The visibility is turned off when the PDF is opened on the first
%   page.
% \item[\texttt{mouseover}] Layers can be opened by MouseOver action.
%   The corresponding active area is an invisible square with side 8pt
%   placed on the right bottom corner of the text or picture which
%   opens the layer. More details: MouseOver opens the layer and
%   MouseExit hides this layer again. If mouse button is clicked, the
%   layer remains opened after exiting the button and can be closed by
%   hovering and exiting minibutton, clicking the active area outside
%   the minibutton or clicking the red cross. The field with red cross
%   gets focus after opening the layer and hence pressing Enter key
%   also hides the layer or minilayer.
% \item[\texttt{minimouseover}] As mouseover, but restricted to
%   minilayers.
% \item[\texttt{noprogressmsg}] Opening PDF on the first page show the
%   message related to initial processing layers. This option turns
%   the message off.
% \item[\texttt{nopageclose}] By default, all layers become off and
%   all buttons become hidden if the page is changed. The option
%   \texttt{nopageclose} suppresses this behavior.
% \item[\texttt{inactive}] This option makes the package inactive.
% \item[\texttt{noocg}] The same as \texttt{inactive}.
% \item[\texttt{active}] This option forces the package active even if
%   |inactive| option is loaded.
% \item[\texttt{fixcolor}] Use if you have \texttt{fancytooltips}
%   package installed. This option tries to resolve the problems with
%   transparency and color management on linux machines.
% \end{description}
%
% \subsection{Text layer which extends to papersize}
% The macro |\ocgtext[width=|\meta{width}, |bg=|\meta{color1},
% |fg=|\meta{color2}|]|\marg{text1}\marg{text2}
% \DescribeMacro{\ocgtext} is used to create layer which contains any
% \LaTeX{} material. \meta{text1} is a text which is written in an
% ``usual'' way (in blue color which indicates that this text can be
% used to hide/unhide another object) and this text is used to
% hide/unhide layer with \meta{text2} (which could be text divided
% into more than one paragraph, figure created by |mfpic| or any
% \LaTeX{} material). \meta{text2} is either placed into |\hbox| (if
% \meta{width} is 0\,pt, which is default) or wrapped by |\vbox| with
% |\hsize| equal to \meta{width} (in the opposite case). The color
% \meta{color1} is used to set the background for this box and the
% color \meta{color2} is used as text color. The default value for
% \meta{color1} is stored in macro |\defaultocgpapercolor| and the
% default vaue for this macro is \DescribeMacro{ocgpaper} |ocgpaper|.
% The color |ocgpaper| is yellow by default, more precisely, it is
% declared with |\definecolor{ocgpaper}{rgb}{1,1,0.2}|. The default
% value for \meta{color2} is stored in macro |\defaultocgfontcolor|
% and the default vaue for this macro is
% \DescribeMacro{ocgfontcolor}|ocgfontcolor|. The color |ocgfontcolor|
% is declared as black by default. You can use also key words
% |background| instead of |bg| and |color| instead of |fg|. The
% keyword |width| can be omitted, provided \meta{width} comes as first
% argument. Thus |\ocgtext[1cm,background=black,color=white]{text}|
% puts the white text on black background in the box of width 1cm. For
% more details about color management see paragraph \ref{summary}.
%
% \subsection{Layer with image which extends to papersize}
% \DescribeMacro{\ocgpicture} The macro
% |\ocgpicture|\oarg{params}\marg{picture} is used to insert a picture
% which is used as a link to layer with bigger version of this
% picture. The optional parameter \meta{params} is used by
% |\includegraphics| command to draw picture in text. The layer
% contains scaled version of the picture (aspect ratio is preserved).
%
% \subsection{Layer with text (or whatever) in its natural size}
% \DescribeMacro{\ocgminitext} The macro
% |\ocgminitext[width=|\meta{width}, |bg=|\meta{color1},
% |fg=|\meta{color2}|]|\marg{text1}\marg{text2} is used to create layer
% containing \meta{text2} which is placed near the right top corner of
% \meta{text1}. \meta{text2} is placed into |\hbox| or |\vbox| with
% given |\hsize| according to the value of \meta{width} and other
% optional parameters, as has been explained at |\ocgtext|
% macro. Macros |\ocgminitextrb|, |\ocgminitextlt| and
% |\ocgminitextlb| can be used to place the minilayer to the right
% bottom, left to and left bottom corner.
%
% Starting from version 0.9 you can use keywords
% |jsopen=|\meta{openaction} and |jsclose=|\meta{closeaction} to
% define JavaScript action which is performed when the layer is opened
% and closed, respectively.
%
% \subsection{Fine-tuning, customizing}
% \DescribeMacro{\ocgtextstart}\DescribeMacro{\ocgtextend} Macros
% |\ocgtextstart| and |\ocgtextend| are used to denote the start and
% the end of hyperlink which is used to hide/reveal layers. Default
% setting is |\def\ocgtextstart{\color{blue}}| and |\def\ocgtextend{}|
% and hence, the links are blue and there is no mark at the end of the
% link.
%
% \DescribeMacro{ocgbg} The color |ocgbg| is used to set the color
% which are used to hide page when using |\ocgtext| and |\ocgpicture|
% commands. The default setting is |\definecolor{ocgbg}{rgb}{0,0,0}|.
% You may want to redefine this color, but you have to do this before
% |\begin{document}|.
%
%   \DescribeMacro{\layerHshift} \DescribeMacro{\layerVshift} The
%   dimensions |\layerHshift| and |\layerVshift| are used to place
%   layers exactly on the top of the page. Should be set automatically
%   in the second pass, when reading aux file. If not (the big layers
%   do not cover the PDF page and minitext layers are shifted), you
%   may adjust them as required after |\begin{document}|. In this
%     case, \textit{report the problem} to the author of the package,
%     please.
%
% Commands |\ocgtools@shipoutstart@hook| and
% |\ocgtools@shipoutend@hook| are introduced to insert some material
% at the begin and at the end of the box with the page contents. Can
% be used for example to put background to the presentation. Both
% commands should produce boxes of zero dimensions, i.e. use something
% like 
% \begin{verbatim} 
% \makeatletter
%   \def\ocgtools@shipoutstart@hook{\hbox to 0 pt{\kern -1in \Huge
%     A\hss}} 
% \makeatother 
% \end{verbatim} 
% to insert letter "A" into the left bottom corner. Note that you will
% see this letter only if the background of the presentation is
% transparent. See also the files |ocgtools-example-web*.tex| and
% |ocgtools-example-web*.pdf| for slightly more complicated
% background.
%
% {\sloppy \DescribeMacro{\...envelope} The arguments of commands
% |\ocgpicture|, |\ocgtext| and family of |\ocgminitext| etc. are
% wrapped by macros |\ocgtools@pict@envelope|,
% |\mocgtools@text@envelope| and |\ocgtools@minitext@envelope|,
% respectively. You can redefine these macros to suit more to your
% need. All macros are |\relax| by default.
%
% }\DescribeMacro{\ocgclosechar} The |\ocgclosechar| command is used to
% print mark which is used to close layers. This mark is a red cross.
% On the minitextlayers with red background we switch this color to
% black (see the first few lines of the code to see, how we get this
% behavior). Note that we used the macro
% |\if@ocgtools@insideminilayer| which is true on layers with minitext
% and false otherwise.
%
% \DescribeMacro{\ocgtools@msg} The |\ocgtools@msg| command contains
% string for users of viewers which do not support layers (see the
% first few lines of the code for default settings).
%
% \subsection{Summary on customizing colors in text layers}\label{summary}
% Note that all colors related to the layers are set (and hence must
% be declared before) when reading auxiliary files at
% |\begin{document}|. Declaring of redefining colors after
% |\begin{document}| has no influence. To summarize, if you want to
% change colors, use the following.
% \begin{itemize}\sloppy
% \item To change the setting in the whole paper, redeclare colors
%   |ocgpaper| and |ocgfontcolor| before |\begin{document}|. Use the
%     command |\definecolor| for this purpose.
%   \item To change the setting from now to the end of document (or
%     group) redefine macros |\defaultocgpapercolor| and
%     |\defaultocgfontcolor|. Use for example
%     |\renewcommand{\defaultocgpapercolor}{green}|. 
%   \item To change the setting for one single layer use |bg| and |fg|
%     keywords in optional parameter of |\ocgtext| and |\ocgminitext|
%     macros.
% \end{itemize}
%
% \section{Possible future development and known problems}
% The source code is in Mercurial repository at
% \url{http://bitbucket.org/robert.marik/ocgtools/}. You can also
% report problems and issues in the forum at this site.
% \subsection{Known problems}
% \begin{enumerate}
% \item The package does not work properly if the \textbf{\color{red}PDF has one page}
%   only. This is probably minor problem, since most presentations are
%   longer and the problem will be traced later.
% \item There could be a \textbf{\color{red}conflict with another package which
%     deals with} |\pdfpageattr|. This problem is resolved for
%   fancytooltips package. To make both fancytooltips and ocgtools
%   work in one document, load \textit{fancytooltips as the first one}
%   and ocgtools after. 
% \item In some rare cases the layers may be not inserted properly
%   when the \textbf{\color{red}\LaTeX{} file is compiled on Windows}
%   -- see the option \texttt{insertvisible} which solves this
%   problems in most cases.  Since the author has limited access to
%   \TeX{} installations on Windows and hence reporting of problems
%   with a minimal example is highly appreciated.
% \item The package cannot be used to hide 3D graphics inserted by
%   |movie15| package. However, you can put this graphics into
%   floating window or full-screen using capabilities of Acrobat Reader
%   9.
% \end{enumerate}
% \subsection{Ideas for future developement}
% These ideas may appear in new versions of the package (and patches
% which include the solutions to this or other problems are
% welcomed).
% \begin{enumerate}
% \item Using |preview| package it is possible to extract equations
%   and figures from the document and redefine |\ref| and |\eqref|
%   commands in such a way that clicking (or mouseover) opens on the
%   current page the layer with this equation (figure) and shift
%   clicking moves the user to the page with this equation (figure).
%   Or would |fancytooltips| produce better results in this case
%   (smaller PDF file)? See also the paper by Ross More at
%   \url{http://www.tug.org/TUGboat/Articles/tb29-3/tb93moore.pdf} and
%   the demo |examples/fancy-preview| in fancytooltips distribution.
%   See the |ocgtools-preview.*| files for some initial attempts in
%   this direction based on ocgtools.
% \item Introduce draft mode, which prints all layers at the end of
%   document with links there and back?
% \item If you open and close layer and then use "Back"
%   (Alt+LeftArrow), the layer opens again, but the button to hide
%   this layer becomes unavailable. Possible solution is to define
%   open action and close action for each layer (is it possible in
%   current PDF specification?).
% \end{enumerate}
%
% \StopEventually{}
% 
% \section{Implementation}
% Initial settings
%    \begin{macrocode}
%&lt;*package&gt;
\def\ocgtools@msg{If this message does not disappear after a short time, the
  author either did not compile the \LaTeX{} file three times, or your
  PDF viewer does not support OCG. Use Adobe Reader!}

\def\ocgtextstart{\color{blue}}
\def\ocgtextend{}
\ifx\definecolor\undefined\RequirePackage{color}\fi
\ifx\href\undefined\RequirePackage[pdftex]{hyperref}\fi
\definecolor{ocgpaper}{rgb}{1,1,0.2}
\definecolor{ocgfontcolor}{rgb}{0,0,0}
\def\defaultocgpapercolor{ocgpaper}
\def\defaultocgfontcolor{ocgfontcolor}
\definecolor{ocgbg}{rgb}{0,0,0}
\RequirePackage{graphicx}
\RequirePackage{pifont}
\@ifpackageloaded{ocg-p}{}{\RequirePackage{ocg}}
\RequirePackage{xkeyval}

\newif\if@ocgtools@insideminilayer
\def\ocgclosechar{{\color{red}\def\temp{red}%
   \ifx\temp\ocgt@@ls@bg\if@ocgtools@insideminilayer\color{black}\fi\fi
   \ding{56}}}

%    \end{macrocode}
% Make packages and options known.
%    \begin{macrocode}
\RequirePackage{atbegshi}
\RequirePackage[pdftex]{eforms}
\newif\if@ocgtools@transparent\@ocgtools@transparentfalse
\def\ocgtools@transparent{}
\DeclareOptionX{transparent}[0.5]{\@ocgtools@transparenttrue\gdef\ocgtools@transparent{\transparent{#1}}}
\newif\if@ocgtools@insertvisible\@ocgtools@insertvisiblefalse
\def\ocgtools@initialvisibility{0}
\DeclareOptionX{insertvisible}{\@ocgtools@insertvisibletrue
   \def\ocgtools@initialvisibility{1}}
\newif\ifocg@hide@button\ocg@hide@buttontrue
\DeclareOptionX{nobutton}{\ocg@hide@buttonfalse}
\def\ocgtools@progressmsg{\lower \layerVshift\hbox to 0 pt{ %space
  \textField[\V{OCGtools: processing OCG's ...}\BG{1 1 1} 
  \textColor{1 0 0} \textSize{10}]%
{ocgtoolsmsg}{6cm}{20pt}\hss}}%
\DeclareOptionX{noprogressmsg}{\let\ocgtools@progressmsg\relax}
\newif\if@ocgtools@minimouseover \@ocgtools@minimouseoverfalse
\DeclareOptionX{minimouseover}{\@ocgtools@minimouseovertrue}
\newif\if@ocgtools@mouseover \@ocgtools@mouseoverfalse
\DeclareOptionX{mouseover}{\@ocgtools@mouseovertrue \@ocgtools@minimouseovertrue}
\newif\if@ocgtools@pageclose \@ocgtools@pageclosetrue
\DeclareOptionX{nopageclose}{\@ocgtools@pageclosefalse}
\newif\if@ocgtools@inactive\@ocgtools@inactivefalse
\DeclareOptionX{inactive}{\@ocgtools@inactivetrue}
\DeclareOptionX{noocg}{\@ocgtools@inactivetrue}
\newif\if@ocgtools@active\@ocgtools@activefalse
\DeclareOptionX{active}{\@ocgtools@activetrue}
\newif\if@ocgtools@fixcolor\@ocgtools@fixcolorfalse
\DeclareOptionX{fixcolor}{\@ocgtools@fixcolortrue}

\ProcessOptionsX

\if@ocgtools@transparent\else\@ocgtools@fixcolorfalse\fi

\if@ocgtools@active\@ocgtools@inactivefalse\fi
\newdimen\layerHshift \layerHshift=-1in
\newdimen\layerVshift \layerVshift=0pt

\if@ocgtools@inactive
  \newcommand\ocgpicture[2][]{\leavevmode\includegraphics[#1]{#2}}
  \newcommand\ocgtext[3][0pt]{\leavevmode #2}
  \newcommand\ocgtoolsplacepicture[4]{}
  \newcommand\ocgtoolsplacetext[3]{}
  \newcommand\ocgtoolsplaceminitext[7]{}
  \newcommand\ocgminitext[3][0pt]{\leavevmode #2}%
  \let\ocgminitextlt\ocgminitext
  \let\ocgminitextrt\ocgminitext
  \let\ocgminitextlb\ocgminitext
  \let\ocgminitextrb\ocgminitext
  \PackageWarning{ocgtools}{Ocgtools inactive}%
\expandafter\endinput\fi

%    \end{macrocode}
% We use the hack for Adobe Acrobat suggested by DPS and Jorg at
% http://www.acrotex.net/forum/showthread.php?tid=78.
%    \begin{macrocode}
\def\ocgtools@JS#1{\JS{DirtyBeforeOCGtools=this.dirty; #1 
  this.dirty=DirtyBeforeOCGtools;}}
%    \end{macrocode}
% We insert JavaScripts which are evaluated when the file is opened at
% the first page. There is a clash with fancytooltips package. To make
% things work, load fancytooltips before ocgtools and add the
% |\pdfpageattr| from fancytooltips to |\pdfpageattr| inserted by
% ocgtools.
%    \begin{macrocode}
\@ifpackageloaded{fancytooltips}{%
  \let\TooltipPageopencloseJS\relax
  \ifx\fancytooltips@pdfpageattrJS\undefined
  \def\@ocgtools@fancytooltips{var DirtyBeforeCloseTooltip=this.dirty;
    CloseTooltips(); this.dirty=DirtyBeforeCloseTooltip;}
  \else
  \let\@ocgtools@fancytooltips\fancytooltips@pdfpageattrJS
  \fi
  }{\def\@ocgtools@fancytooltips{}}

\edef\ocgtools@pdfpageattr{ /Group &lt;&lt;/S /Transparency /I true /CS /DeviceRGB&gt;&gt;
/AA &lt;&lt; /O &lt;&lt; /S /JavaScript /JS 
  (
%    \end{macrocode}
% We close layers, if the page is opened. If the document is opened
% and \texttt{ocgtoolsOCGs} is not initialized, we skip to
% \texttt{catch} part and initialize.
%    \begin{macrocode}
  if (typeof(ocgtoolsOCGs)!="undefined"){
   var temp = ocgtoolsOCGs.length;
   \if@ocgtools@pageclose
   for(var i=0; ocgtoolsOCGs &amp;&amp; i&lt;ocgtoolsOCGs.length;i++)
     {
      ocgtoolsOCGs[i].state = false;
     }
   \fi
  }
%    \end{macrocode}
% We initialize document -- we find all layers, put into
% \texttt{ocgtoolsOCGs} field and make them hidden.
%    \begin{macrocode}
  else {
%    \end{macrocode}
% No dotted rectangle for buttons which have focus.
%    \begin{macrocode}
    app.focusRect = false;
    var DirtyBeforeOCGtools=this.dirty;
%    \end{macrocode}
% The OCG objects inserted by ocgtools are stored in variable
% |ocgtoolsOCGs| when the PDF document is opened on the first page.
%    \begin{macrocode}
    var iniocgtoolsOCGs = this.getOCGs();
    var ocgtoolsOCGs = [];
    for(var i=0; iniocgtoolsOCGs &amp;&amp; i&lt;iniocgtoolsOCGs.length;i++)
     {
     if(iniocgtoolsOCGs[i].name.substr(0,8) == "ocgtools")
        {
          ocgtoolsOCGs.push(iniocgtoolsOCGs[i]);
          \if@ocgtools@insertvisible
          iniocgtoolsOCGs[i].state=false;
          \fi
        }  
     }
    iniocgtoolsOCGs[0].state=true;
    iniocgtoolsOCGs[0].state=false;
    \ifx\ocgtools@progressmsg\relax\relax\else
    this.getField("ocgtoolsmsg").hidden=true;
    this.dirty=false;
    \fi
    }
    \ifocg@hide@button 
     this.getField("OcgtoolsBtn.HideButton.main").hidden = true; 
     this.dirty=false;
    \fi
    \@ocgtools@fancytooltips
    )
    &gt;&gt; &gt;&gt;
}

\expandafter\global\expandafter\pdfpageattr\expandafter{\ocgtools@pdfpageattr}

\if@ocgtools@transparent
\RequirePackage{transparent}
\fi
%    \end{macrocode}
% Internal variables
%    \begin{macrocode}
\newif\ifocg@minitext@left
\newif\ifocg@minitext@bottom
\newcount\ocgtools@layercount
\newskip\ocgtools@left@skip
\newskip\ocgtools@bottom@skip
\newdimen\ocgtools@maxheight
\newdimen\ocgtools@maxwidth
%    \end{macrocode}
% We introduce lengths which can be used to fine-tune position of
% layers on the screen.  These lengths should be se automatically.
%    \begin{macrocode}
\def\ocgtools@save@position{\pdfsavepos
\write\@auxout{\string\global\string\advance\string \layerVshift \the\pdflastypos sp\string\relax}%
\write\@auxout{\string\global\string\advance\string \layerHshift \the\pdflastxpos sp\string\relax}%
\global\let\ocgtools@save@position\relax
}

\newtoks\ocgtools@layer@toks
\ocgtools@layer@toks{\ocg@place@text{0}{1}{5cm}}
\newbox\ocgtools@box@a
\newbox\ocgtools@box@b
\newif\ifocg@page@contains@layer
%    \end{macrocode}
% We modify |shipout| routine and insert content of layers on the top of
% PDF pages.
%    \begin{macrocode}
\def\ocgtools@one{1}
\let\ocgtools@shipoutstart@hook\relax
\let\ocgtools@shipoutend@hook\relax
\AtBeginShipout{%
\expandafter\global\expandafter\pdfpageattr\expandafter{\ocgtools@pdfpageattr}
\setbox\AtBeginShipoutBox=\hbox{%
%    \end{macrocode}
% Hook which can be used to place background.
%    \begin{macrocode}
\ocgtools@shipoutstart@hook
%    \end{macrocode}
% This command writes the info about the position on the first PDF
% page and then is set to relax on next pages.
%    \begin{macrocode}
\ocgtools@save@position
%    \end{macrocode}
% We insert the page first.
%    \begin{macrocode}
\hbox to 0 pt{\box\AtBeginShipoutBox\hss}\kern -1in\kern \layerHshift
%    \end{macrocode}
% We insert the layers.
%    \begin{macrocode}
\ocg@page@contains@layerfalse
\lower \layerVshift \hbox{\the\ocgtools@layer@toks}%
%    \end{macrocode}
%    If at least one layer has been inserted, we insert button which
%    can be used to hide layers.
%    \begin{macrocode}
\ifocg@page@contains@layer
  \vbox to 0 pt{\kern -\paperheight \kern\layerVshift\hbox to 0 pt{\ocgtools@HideBtn\hss}\vss}%
\fi
%    \end{macrocode}
% We insert progress field on the first page.
%    \begin{macrocode}
\xdef\ocgtools@currpage{\thepage}%
\ifx\ocgtools@currpage\ocgtools@one
\ocgtools@progressmsg
\fi
%    \end{macrocode}
% We finish the box.
%    \begin{macrocode}
\ocgtools@shipoutend@hook%
\kern 1in \kern -\layerHshift%
}%
}
%    \end{macrocode}
% We create buttons which are used to hide all layers (if we create
% buttons, we keep possibility to make them hidden, in contrast to
% links).
%    \begin{macrocode}
\ifx\ocgtools@AfterHideBtn\undefined\def\ocgtools@AfterHideBtn{}\fi
\def\ocgtools@HideBtn{\pushButton[\W{0}\BG{}\S{S}\BC{}\H{N}\F{\FHidden}\A{\ocgtools@JS{         
         for(var i=0; ocgtoolsOCGs &amp;&amp; i&lt;ocgtoolsOCGs.length;i++)
         {
         ocgtoolsOCGs[i].state = false;
         }
         \ifocg@hide@button this.getField("OcgtoolsBtn.HideButton").hidden = true; \fi
         \ocgtools@AfterHideBtn
       }}]{OcgtoolsBtn.HideButton.main}{\paperwidth}{\paperheight}}
%    \end{macrocode}
% We create buttons which are attached to the top right corner 
% of each minilayer and can be used to hide the corresponding minilayer.
%    \begin{macrocode}
\ifx\ocgtools@AfterHideMiniLayer\undefined\def\ocgtools@AfterHideMiniLayer{}\fi
\newcommand\ocgtools@HideMiniLayer[2][]
{\setbox\ocgtools@box@a=\hbox{{\ocgclosechar}}%
\hbox to \wd\ocgtools@box@a%
{\hbox{{\ocgclosechar}}\hss%
\hbox{\pushButton[\W{0}\S{S}\BG{}\BC{}\H{N}%
\F{\FHidden}\A{\ocgtools@JS{         
    for(var i=0; ocgtoolsOCGs &amp;&amp; i&lt;ocgtoolsOCGs.length;i++)
    {
      if(ocgtoolsOCGs[i].name == "ocgtools#2")
      ocgtoolsOCGs[i].state = false;
    }
    this.getField("OcgtoolsBtn.HideButton.mini.#2").hidden = true; 
    \ocgtools@AfterHideMiniLayer
    #1
  }}]%
{OcgtoolsBtn.HideButton.mini.#2}{\wd\ocgtools@box@a}{\ht\ocgtools@box@a}}}}
%    \end{macrocode}
% We create buttons which are attached to the bottom right corner 
% of the screen and can be used to hide all layers.
%    \begin{macrocode}
\ifx\ocgtools@AfterHideLayers\undefined\def\ocgtools@AfterHideLayers{}\fi
\newcommand\ocgtools@HideLayers[1]{%
\setbox\ocgtools@box@a=\hbox{{\ocgclosechar}}%
\hbox to \wd\ocgtools@box@a%
{\hbox{{\ocgclosechar}}\hss%
\hbox{\pushButton[\W{0}\S{S}\BG{}\BC{}\H{N}%
\F{\FHidden}\A{\ocgtools@JS{         
         for(var i=0; ocgtoolsOCGs &amp;&amp; i&lt;ocgtoolsOCGs.length;i++)
         {
         ocgtoolsOCGs[i].state = false;
         }
         \ifocg@hide@button 
         this.getField("OcgtoolsBtn.HideButton.main").hidden = true; 
         \fi
         \ocgtools@AfterHideLayers
       }}]%
     {OcgtoolsBtn.HideButton.corner.#1}{\wd\ocgtools@box@a}{\ht\ocgtools@box@a}}}}
%    \end{macrocode}
% To hide/unhide layers and minilayers we use modified code from
% http://www.texample.net/weblog/2008/nov/02/creating-pdf-layers/
%    \begin{macrocode}
\newcommand{\ocgtools@ToggleLayer}[2]{%
  % #1: layer name,
  % #2: link text
  \leavevmode%
  \pdfstartlink user {
    /Subtype /Link
    /Border [0 0 0]%
    /H /N
    /A &lt;&lt;
      /S/JavaScript
      /JS (
         DirtyBeforeOCGtools=this.dirty;
         for(var i=0; ocgtoolsOCGs &amp;&amp; i&lt;ocgtoolsOCGs.length;i++)
         {
         if(ocgtoolsOCGs[i].name == "ocgtools#1")
         ocgtoolsOCGs[i].state = !ocgtoolsOCGs[i].state;
         else
         ocgtoolsOCGs[i].state = false;
         }
         \ifocg@hide@button this.getField("OcgtoolsBtn.HideButton.main").hidden = false;\fi
         this.getField("OcgtoolsBtn.HideButton.corner").hidden = false;
         this.getField("OcgtoolsBtn.HideButton.corner.#1").setFocus();
         this.dirty=DirtyBeforeOCGtools;
      )
    &gt;&gt;
  }#2%
    \if@ocgtools@mouseover
  \hbox to 0 pt{\hss\pushButton[\W{0}\S{S}\BG{}\BC{}\H{N}%
  \A{\ocgtools@JS{
        var OpenedByMouseEnter#1=false;
        \ifocg@hide@button this.getField("OcgtoolsBtn.HideButton.main").hidden = false;\fi
        this.getField("OcgtoolsBtn.HideButton.corner").hidden = false;
        this.getField("OcgtoolsBtn.HideButton.corner.#1").setFocus();
        }}
  \AA{\AAMouseEnter{\ocgtools@JS{         for(var i=0; ocgtoolsOCGs &amp;&amp; i&lt;ocgtoolsOCGs.length;i++)
         {
         var OpenedByMouseEnter#1=true;
         if(ocgtoolsOCGs[i].name == "ocgtools#1")
         ocgtoolsOCGs[i].state = true;
         else
         ocgtoolsOCGs[i].state = false;
         }
         }}
  \AAMouseExit{\ocgtools@JS{ 
        if (OpenedByMouseEnter#1)
         {for(var i=0; ocgtoolsOCGs &amp;&amp; i&lt;ocgtoolsOCGs.length;i++)
         {
         if(ocgtoolsOCGs[i].name == "ocgtools#1")
         ocgtoolsOCGs[i].state = false;
         }}
         }}}]
    {OcgtoolsBtn.MaxiButton.#1}{8pt}{8pt}}%
  \fi
  \pdfendlink%
}

\newcommand{\ocgtools@ToggleMiniLayer}[4]{%
  % #1: layer name,
  % #2: link text
  % #3: js action if the layer is opened
  % #4: js action if the layer is closed
  \leavevmode%
  \pdfstartlink user {
    /Subtype /Link
    /Border [0 0 0]%
    /H /N
    /A &lt;&lt;
      /S/JavaScript
      /JS (
         DirtyBeforeOCGtools=this.dirty;
         for(var i=0; ocgtoolsOCGs &amp;&amp; i&lt;ocgtoolsOCGs.length;i++)
         {
         if(ocgtoolsOCGs[i].name == "ocgtools#1")
         {
           if (ocgtoolsOCGs[i].state)
           {
             #4
             ocgtoolsOCGs[i].state = false;
           }
           else
           {
             #3
             ocgtoolsOCGs[i].state = true;
           }
         }
         }
         this.getField("OcgtoolsBtn.HideButton.mini.#1").hidden = 
         !this.getField("OcgtoolsBtn.HideButton.mini.#1").hidden; 
         if (!this.getField("OcgtoolsBtn.HideButton.mini.#1").hidden)
           {this.getField("OcgtoolsBtn.HideButton.mini.#1").setFocus();}
         this.dirty=DirtyBeforeOCGtools;
      )
    &gt;&gt;
  }#2%
  \if@ocgtools@minimouseover
  \hbox to 0 pt{\hss\pushButton[\W{0}\S{S}\BG{}\BC{}\H{N}%
  \A{\ocgtools@JS{
    var OpenedByMouseEnter#1=false;
    this.getField("OcgtoolsBtn.HideButton.mini.#1").setFocus(); 
   }}
  \AA{\AAMouseEnter{\ocgtools@JS{for(var i=0; ocgtoolsOCGs &amp;&amp; i&lt;ocgtoolsOCGs.length;i++)
         {
         var OpenedByMouseEnter#1=true;
         if(ocgtoolsOCGs[i].name == "ocgtools#1")
         {#3 ocgtoolsOCGs[i].state = true;}
         }
         this.getField("OcgtoolsBtn.HideButton.mini.#1").hidden = false;
         }}
  \AAMouseExit{\ocgtools@JS{
       if (OpenedByMouseEnter#1)
       {
         for(var i=0; ocgtoolsOCGs &amp;&amp; i&lt;ocgtoolsOCGs.length;i++)
         {
         if(ocgtoolsOCGs[i].name == "ocgtools#1")
         {#4 ocgtoolsOCGs[i].state = false; }
         }
         this.getField("OcgtoolsBtn.HideButton.mini.#1").hidden = true;
       }
       }}}]
    {OcgtoolsBtn.MiniButton.#1}{8pt}{8pt}}%
  \fi
  \pdfendlink%
}

%    \end{macrocode}
% Macros dealing with |\savepos| from Vit Zyka's paper in CSTUG
% Bulletin (ISSN 1211-6661, No. 2, 2007)
%    \begin{macrocode}
\newwrite\posHandle
\def\posFile{\jobname.pos}
\def\posOpen{\openout\posHandle=\posFile}
\def\posClose{\closeout\posHandle}
\AtBeginDocument{\InputIfFileExists{\posFile}{}{}%
\ocgtools@maxheight=0.9\paperheight
\ocgtools@maxwidth=0.9\paperwidth
\expandafter\global\expandafter\def\csname ocgtools@textcontent@0\endcsname
{{\color{red}\bfseries\ocgtools@msg}}%
\posOpen}
\AtEndDocument{\posClose}

%    \end{macrocode}
% The following commands create links to hide/unhide layers and
% minilayers and write information on the layer number, page and layer
% content into the |pos| file. The content of textlayer is stored in
% command |\ocgtools@textcontent@&lt;n&gt;| where |&lt;n&gt;| is the number of the
% layer. Similarly, the content of the minitextlayer is stored in
% |\ocgtools@minitextcontent@&lt;n&gt;|.
%    \begin{macrocode}
\newcommand\ocgpicture[2][]{%
\global\advance\ocgtools@layercount by 1%
\ocgtools@ToggleLayer{\the\ocgtools@layercount}%
{\leavevmode\includegraphics[#1]{#2}}%
\expandafter\write\expandafter\posHandle\expandafter{%
\expandafter\string\expandafter\ocgtoolsplacepicture\expandafter{%
\the\ocgtools@layercount}{\thepage}{#2}{#1}}%
}

\define@key{ocg@key}{width}[0pt]{\def\ocgt@@ls@width{#1}}
\define@key{ocg@key}{background}[ocgpaper]{\def\ocgt@@ls@bg{#1}}
\define@key{ocg@key}{bg}[ocgpaper]{\def\ocgt@@ls@bg{#1}}
\define@key{ocg@key}{color}[ocgfontcolor]{\def\ocgt@@ls@fg{#1}}
\define@key{ocg@key}{fg}[ocgfontcolor]{\def\ocgt@@ls@fg{#1}}
\define@key{ocg@key}{jsopen}[]{\def\ocgt@@ls@jsopen{#1}}
\define@key{ocg@key}{jsclose}[]{\def\ocgt@@ls@jsclose{#1}}

\newtoks\ocg@pdflastxpos\ocg@pdflastxpos{\the\pdflastxpos}
\newtoks\ocg@pdflastypos\ocg@pdflastypos{\the\pdflastypos}
\newtoks\ocg@pagetoks\ocg@pagetoks{\thepage}

%    \end{macrocode}
% The trick with |\setkeys*| allows to write |[2cm,fg=red]| instead of
% |[width=2cm,fg=red]|.
%    \begin{macrocode}
\def\ocgtools@setdefault{\def\ocgt@@ls@bg{\defaultocgpapercolor}%
\def\ocgt@@ls@fg{\defaultocgfontcolor}%
\def\ocgt@@ls@width{0pt}\def\ocgt@@ls@jsopen{}%
\def\ocgt@@ls@jsclose{}%
}

\newcommand\ocgtext[3][0pt]{%
\ocgtools@setdefault
\setkeys*{ocg@key}{#1}%
\ifx\XKV@rm\empty\setkeys{ocg@key}{#1}\else\setkeys{ocg@key}{width=#1}\fi
\global\advance\ocgtools@layercount by 1%
\ocgtools@ToggleLayer{\the\ocgtools@layercount}%
{\leavevmode{\ocgtextstart #2\ocgtextend}}%
\edef\ocgtools@act{\write\posHandle{\noexpand\string\noexpand\ocgtoolsplacetext{\the\ocgtools@layercount}{\the\ocg@pagetoks}{width=\ocgt@@ls@width,bg=\ocgt@@ls@bg,fg=\ocgt@@ls@fg}}}%
\ocgtools@act
\expandafter\global\expandafter\def
\csname ocgtools@textcontent@\the\ocgtools@layercount\endcsname{#3}%
}

\newcommand\ocgminitextlt[3][0pt]{%
\ocg@minitext@bottomfalse\ocg@minitext@lefttrue
\do@ocg@minitext{#1}{#2}{#3}{lt}}%
\newcommand\ocgminitextrt[3][0pt]{%
\ocg@minitext@bottomfalse\ocg@minitext@leftfalse
\do@ocg@minitext{#1}{#2}{#3}{rt}}%
\newcommand\ocgminitextlb[3][0pt]{%
\ocg@minitext@bottomtrue\ocg@minitext@lefttrue
\do@ocg@minitext{#1}{#2}{#3}{lb}}%
\newcommand\ocgminitextrb[3][0pt]{%
\ocg@minitext@bottomtrue\ocg@minitext@leftfalse
\do@ocg@minitext{#1}{#2}{#3}{rb}}%
\let\ocgminitext\ocgminitextrt

\long\def\do@ocg@minitext#1#2#3#4{%
\ocgtools@setdefault
\setkeys*{ocg@key}{#1}%
\ifx\XKV@rm\empty\setkeys{ocg@key}{#1}\else\setkeys{ocg@key}{width=#1}\fi
\global\advance\ocgtools@layercount by 1\relax%
\leavevmode
\ifocg@minitext@left
  \ifocg@minitext@bottom
    \vbox to 0 pt{\kern 0.7\baselineskip\pdfsavepos\vss}%
  \else
    \vbox to 0 pt{\vss\pdfsavepos\kern 0.7\baselineskip}%
  \fi
\fi
\ocgtools@ToggleMiniLayer{\the\ocgtools@layercount}%
{{\ocgtextstart #2\ocgtextend}}{\ocgt@@ls@jsopen}{\ocgt@@ls@jsclose}%
\ifocg@minitext@left\else
  \ifocg@minitext@bottom
    \vbox to 0 pt{\kern 0.7\baselineskip\pdfsavepos\vss}%
  \else
    \vbox to 0 pt{\vss\pdfsavepos\kern 0.7\baselineskip}%
  \fi
\fi
\edef\ocgtools@act{\write\posHandle{\noexpand\string\noexpand\ocgtoolsplaceminitext{\the\ocgtools@layercount}{\the\ocg@pagetoks}{\the\ocg@pdflastxpos}{\the\ocg@pdflastypos}{}{width=\ocgt@@ls@width,bg=\ocgt@@ls@bg,fg=\ocgt@@ls@fg,jsopen={\ocgt@@ls@jsopen},jsclose={\ocgt@@ls@jsclose}}{#4}}}%
\ocgtools@act
\expandafter\global\expandafter\def
\csname ocgtools@minitextcontent@\the\ocgtools@layercount\endcsname{#3}%
}%

%    \end{macrocode}
% These commands appear in |pos| file and we read these commands at the
% begin of the document. Pictures are stored in token register, texts
% for layers and minilayers are stored in commands defined by
% |\csname|.
%    \begin{macrocode}
\newcommand\ocgtoolsplacepicture[4]{%
\expandafter\global\expandafter\ocgtools@layer@toks\expandafter
{\the\ocgtools@layer@toks \ocg@place@picture{#1}{#2}{#3}{#4}}}

\newcommand\ocgtoolsplacetext[3]{%
\expandafter\global\expandafter\ocgtools@layer@toks\expandafter
{\the\ocgtools@layer@toks\ocg@place@text{#1}{#2}{#3}}}

\newcommand\ocgtoolsplaceminitext[7]{%
\expandafter\global\expandafter\ocgtools@layer@toks\expandafter
{\the\ocgtools@layer@toks \ocg@place@minitext{#1}{#2}{#3}{#4}{#5}{#6}{#7}}}

%    \end{macrocode}
% These commands are called in output routine for each layer on each
% page. They put the layer on the page, if the layer should be here
% (i.e., if the second parameter equals |\thepage|).
%    \begin{macrocode}
\def\ocg@place@picture#1#2#3#4{\def\tempnuma{#2}\edef\tempnumb{\thepage}%
\ifx\tempnumb\tempnuma
  \global\ocg@page@contains@layertrue
  \vbox to 0 pt{\vss\hbox to 0pt%
    {\hbox{\begin{ocg}{ocgtools#1}{ocgtools#1}{\ocgtools@initialvisibility}%
          \ocgtools@drawpicture{#3}{#1}{#4}\end{ocg}}\hss}}%
\fi}

\def\ocg@place@text#1#2#3{\def\tempnuma{#2}\edef\tempnumb{\thepage}%
\ifx\tempnumb\tempnuma
  \global\ocg@page@contains@layertrue
  \vbox to 0 pt{\vss\hbox to 0 pt{\hbox{%
    \begin{ocg}{ocgtools#1}{ocgtools#1}{\ocgtools@initialvisibility}%
      \ocgtools@drawtext{#3}{\csname ocgtools@textcontent@#1\endcsname}{#1}%
    \end{ocg}}\hss}}%
\fi}

\long\def\ocg@place@minitext#1#2#3#4#5#6#7{%
\def\tempnuma{#2}\edef\tempnumb{\thepage}%
\def\ocg@placement{#7}%
\def\ocg@rb{rb}\def\ocg@lb{lb}\def\ocg@rt{rt}\def\ocg@lt{lt}%
\ocg@minitext@leftfalse\ocg@minitext@bottomfalse
\ifx\ocg@placement\ocg@lb 
  \ocg@minitext@lefttrue\ocg@minitext@bottomtrue
\fi
\ifx\ocg@placement\ocg@rb 
  \ocg@minitext@leftfalse\ocg@minitext@bottomtrue\fi
\ifx\ocg@placement\ocg@lt 
  \ocg@minitext@lefttrue\ocg@minitext@bottomfalse
\fi
\ifx\tempnumb\tempnuma
  \ocgtools@left@skip=#3sp minus #3sp%
  \ocgtools@bottom@skip=#4sp%
  \setbox\ocgtools@box@a=\hbox{\begin{ocg}{ocgtools#1}{ocgtools#1}{\ocgtools@initialvisibility}%
  \ocgtools@drawminitext{#6}{\csname ocgtools@minitextcontent@#1\endcsname}{#1}
  \end{ocg}}%
  \ifocg@minitext@left
    \ifdim \ocgtools@left@skip&gt;\wd\ocgtools@box@a 
      \advance \ocgtools@left@skip by -\wd\ocgtools@box@a plus 0 pt minus -\wd\ocgtools@box@a
    \else
      \ocgtools@left@skip=0pt\relax
    \fi
  \fi
  \ifocg@minitext@bottom
    \advance \ocgtools@bottom@skip by -\ht\ocgtools@box@a
  \fi
  \hbox to 0 pt{\hbox to \paperwidth{\hskip \ocgtools@left@skip
  \vbox to 0 pt{\vss
  \vbox to \paperheight{\vskip 0 pt plus 1 fill
  \box\ocgtools@box@a\vskip \ocgtools@bottom@skip}
  }%
  \hskip 0 pt plus 1 fill}\hss}%
\fi
}

%    \end{macrocode}
% This code actually gives a graphical representation of the layers.
%    \begin{macrocode}
\let\ocgtools@pict@envelope\relax
\def\ocgtools@drawpicture#1#2#3{\vbox to \paperheight{\vbox to 0 pt{{%
\ocgtools@transparent\color{ocgbg}%
\hrule width \paperwidth height \paperheight}\vss}\vss
\hbox to \paperwidth{\hss 
\setbox\ocgtools@box@a=\hbox{\ocgtools@pict@envelope{%
  \includegraphics[#3,width=!,height=\ocgtools@maxheight]{#1}}}%
\ifdim\wd\ocgtools@box@a&gt;\ocgtools@maxwidth
  \ocgtools@pict@envelope{\includegraphics[#3,height=!,width=\ocgtools@maxwidth]{#1}}%
  \else \box\ocgtools@box@a
\fi
\hss}%
\vss
\hbox to \paperwidth {\hss\ocgtools@HideLayers{#2}}}}

\newdimen\ocg@textdimen
\let\ocgtools@text@envelope\relax
\long\def\ocgtools@drawtext#1#2#3{%
\ocgtools@setdefault
\setkeys*{ocg@key}{#1}%
\ifx\XKV@rm\empty\setkeys{ocg@key}{#1}\else\setkeys{ocg@key}{width=#1}\fi
\vbox to \paperheight{%
\vbox to 0 pt{{\ocgtools@transparent\color{ocgbg}%
\hrule width \paperwidth height \paperheight}\vss}\vss\hbox to \paperwidth
{\hss 
\ifdim\ocgt@@ls@width=0pt
  \setbox\ocgtools@box@a=\hbox{\expandafter\colorbox\expandafter{\ocgt@@ls@bg}%
  {\expandafter\color\expandafter{\ocgt@@ls@fg}\ocgtools@text@envelope{#2}}}%
\else
  \setbox\ocgtools@box@a=\hbox{\expandafter\colorbox{\expandafter\ocgt@@ls@bg}%
    {\vbox{\hsize=\ocgt@@ls@width\relax\linewidth=\ocgt@@ls@width\relax
        \rightskip 0 pt plus 1 fil\relax 
    \expandafter\color\expandafter{\ocgt@@ls@fg}\ocgtools@text@envelope{#2}}}}%
\fi
\setbox\ocgtools@box@b\hbox{\resizebox{!}{\ocgtools@maxheight}{\copy\ocgtools@box@a}}%
\ifdim\wd\ocgtools@box@b&gt;\ocgtools@maxwidth
  \resizebox{\ocgtools@maxwidth}{!}{\box\ocgtools@box@a}
\else 
  \box\ocgtools@box@b
\fi
\hss}%
\vss
\hbox to \paperwidth {\hss\ocgtools@HideLayers{#3}}%
}%
}

\def\ocg@empty{}

\let\ocgtools@minitext@envelope\relax
\newcommand\ocgtools@drawminitext[3]{%
\@ocgtools@insideminilayertrue
\ocgtools@setdefault
\setkeys*{ocg@key}{#1}%
\ifx\XKV@rm\empty\setkeys{ocg@key}{#1}\else\setkeys{ocg@key}{width=#1}\fi
\ifdim\ocgt@@ls@width=0pt
  \setbox\ocgtools@box@a=\hbox{\colorbox{\ocgt@@ls@bg}{\expandafter\color
      \expandafter{\ocgt@@ls@fg}\ocgtools@minitext@envelope{#2}\ }}%
\else  \setbox\ocgtools@box@a=\hbox{\colorbox{\ocgt@@ls@bg}%
  {\vbox{\hsize=\ocgt@@ls@width\relax\linewidth=\ocgt@@ls@width\relax
      \rightskip 0 pt plus 1 fil\relax 
      \expandafter\color\expandafter{\ocgt@@ls@fg}\ocgtools@minitext@envelope{#2}}}}%
\fi
\def\temp{#3}%
\ifx\temp\ocg@empty
\box\ocgtools@box@a
\else
\hbox{\copy\ocgtools@box@a\raise\ht\ocgtools@box@a
\vbox to 0 pt{\hbox to 0 pt{\hss
\ocgtools@HideMiniLayer[\ocgt@@ls@jsclose]{#3}}\vss}}%
\fi
\@ocgtools@insideminilayerfalse
}

%&lt;/package&gt;
%    \end{macrocode}
%
% \Finale
\endinput



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