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%
% present.tex
% Some macros for preparing presentations in TeX, using pdftex
% Version 2.2
% Copyright 2010-2012 Matthias Meister
%
% 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 this license is in
% http://www.latex-project.org/lppl.txt
%
% This work has the LPPL maintenance status 'maintained'.
%
% The Current Maintainer of this work is:
%
% Matthias Meister (meister_matthias@t-online.de)
%
% The work consists of the following files:
% present.tex (the macro collection)
% present-transitions.tex (additional macros, providing transition effects)
% HowToTalkTeX.tex (an example of present.tex in use and a documentation)
% HowToTalkTeX.pdf (pdf obtained from HowToTalkTex.tex with pdftex)
% Stern.png (auxiliary file)
% Sagnac.pdf (auxiliary file)
% Pfeil1.pdf (auxiliary file)
% Pfeil2.pdf (auxiliary file)
% Pfeil3.pdf (auxiliary file)
% Pfeil4.pdf (auxiliary file)
% background.png (auxiliary file)
%
% (The auxiliary files are used in present.tex and HowToTalkTeX.tex, and
% therefore should remain unchanged, too)
%
% With reference to the definitions in the LaTeX Project Public License, for the
% purposes of this work a 'Base Interpreter' is a program implementing the TeX
% language.
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\catcode`\@=11
\parindent0pt % Indentation probably not good for presentation
\parskip0pt % Neither is automatic extra space between paragraphs
\def\StandardAspect{% % Define "slide format", basically determined
\pdfpagewidth=120mm % by aspect ratio of screen
\pdfpageheight=90mm % StandardAspect gives 4:3 aspect ratio
\vsize=67mm %
\hsize=110mm % If you change these values,
\hoffset=-20.4mm % do so with care.
\voffset=-12.4mm %
}
\def\WideAspect{% % WideAspect gives 144:90 aspect ratio
\pdfpagewidth=144mm %
\pdfpageheight=90mm %
\vsize=67mm % If you change these values,
\hsize=134mm % do so with care
\hoffset=-20.4mm %
\voffset=-12.4mm %
}
%
% Set some fonts
%
\font\titlefont=cmssbx10 at 20pt % Define fonts for title of presentation
\font\normalfont=cmss12 % ordinary text
\font\slidetitlefont=cmssbx10 % title of a slide
\font\linkbarfont=cmss8 % the LinkBar (see below)
\font\it=cmti12
%
\baselineskip=15pt
% %% Below fonts for math are adapted to 12pt size
\font\tfont=cmr12
\font\sfont=cmr9
\font\ssfont=cmr7
\font\tifont=cmmi12
\font\sifont=cmmi9
\font\ssifont=cmmi7
\font\tsyfont=cmsy10 at 12pt
\font\ssyfont=cmsy9
\font\sssyfont=cmsy7
\font\texfont=cmex10 at 12 pt
\font\sexfont=cmex9
\font\ssexfont=cmex7
%
\textfont0=\tfont
\scriptfont0=\sfont
\scriptscriptfont0=\ssfont
\textfont1=\tifont
\scriptfont1=\sifont
\scriptscriptfont1=\ssifont
\textfont2=\tsyfont
\scriptfont2=\ssyfont
\scriptscriptfont2=\sssyfont
\textfont3=\texfont
\scriptfont3=\sexfont
\scriptscriptfont3=\ssexfont
%
%
% Definitions to allow referencing the last page of a document
%
\newwrite\wl@stpage
\newread\rl@stpage
\def\bye{%
\immediate\openout\wl@stpage=\jobname.lp% The number of the last slide is written in a file
\write\wl@stpage{\the\pageno}% % with extension .lp
\closeout\wl@stpage
\par\vfill
\supereject
\end
}
\def\LP{undef}
\openin\rl@stpage=\jobname.lp
\ifeof\rl@stpage\closein\rl@stpage\message{RUN AGAIN to get correct number of last page!}
\else\read\rl@stpage to \LP\fi
%
% Define some colours
%
% The commands below handle colour without color.tex, directly with pdftex
% Added October 3rd, 2010
% Define colours
\def\backgroundcolour{1.0 1.0 1.0} % Colour of page background
\def\textcolour{0.0 0.0 1.0} % Colour of text
\def\attentioncolour{1 0 0} % Colour for "Attention"
\newdimen\vsh@ft % vertical shift for background image, vsh@ft+\voffset=-25.4mm
\newdimen\hsh@ft % horizontal shift for background image, hsh@ft+\hoffset=-25.4mm
\vsh@ft=-13mm
\hsh@ft=-5mm
\def\bl@nk{ } % Introduced this
\newcount\colst@ck
\colst@ck=\pdfcolorstackinit page {\textcolour\bl@nk rg \textcolour\bl@nk RG} % and modified this on March 20, 2012
\def\popst@ck{\pdfcolorstack\colst@ck pop}
\def\setcolour#1{\pdfcolorstack\colst@ck push {#1 rg #1 RG}\aftergroup\popst@ck}
\long\def\coloured#1#2{{\setcolour#1#2}}
\long\def\att#1{\coloured\attentioncolour{#1}}
\def\bgc@lset{\relax}
\def\setbgcolour#1{\def\bgc@lset{\begingroup\pdfcolorstack\colst@ck push {#1 rg #1 RG}\aftergroup\popst@ck
\vbox to 0pt{\kern\vsh@ft\hbox to 0pt{%
\kern\hsh@ft\vrule depth0pt height\pdfpageheight width\pdfpagewidth\hss}\vss}
\nointerlineskip
\endgroup}}
\def\NewSlide{\vfill\eject} % Begin a new slide; slide number increases
\def\NewFrame{\vfill\eject\advance\pageno by -1} % Begin new frame ("same" slide, with changes)
% slide number does not change
\def\SlideTitle#1{% % Set the slide title, show it as the headline
\global\headline{% % of the slide in slidetitlefont, with a
\vbox to 5mm{% % horizontal line separating the headline from
\hbox to \hsize{\slidetitlefont #1}% % the main body of the slide
\vskip3pt plus 1fil minus 1fil
\hrule height 1pt depth 0pt
}}}
\def\SlideFoot{% % Set the footline of the slide, separated by
\global\footline{% % a horizontal slide from the main body of the
\vbox to 5mm {% % slide. This macro takes no argument.
\hrule height 1pt depth 0pt % Several possibilities are provided below.
\vskip3pt plus 1fil minus 1fil % Only one of the following options should be
\hbox to \hsize{% % uncommented.
\rlap{\LinkBar}\phantom{\PageBar}\hfil{\normalfont\the\pageno/\LP}\hfil\PageBar% Links to sections,
% %slide number, page navigation
%\hfil\the\pageno/\LP\hfil% % Slide number; \LP is number of last slide
%% % empty
}}}}
\def\LinkBar{% % If you use LinkBar, you have to define it and possibly redefine
LinkBar} % it at several places in your talk. The definition given
% just prints "LinkBar", in order to show where it goes.
\def\PageBar{% % This provides page navigation: Next page, previous page,
\hbox{% % going back and forth in page history
\pagelink{PrevPage}{\image[width4mm]{Pfeil2.pdf}}\kern2mm
\pagelink{NextPage}{\image[width4mm]{Pfeil1.pdf}}\kern2mm
\pagelink{GoBack}{\image[width4mm]{Pfeil3.pdf}}\kern2mm
\pagelink{GoForward}{\image[width4mm]{Pfeil4.pdf}}
}}
%
% Make #2 a link to the destination named #1 in the presentation.
% A destination is created and named with the \target control word.
%
\def\link#1#2{%
\pdfstartlink attr {/Border [0 0 0]} goto name {#1}
#2%
\pdfendlink}
%
% Creates named destination at position where it is issued. #1 is name of destination.
%
\def\target#1{%
\pdfdest name {#1} xyz\relax}
%
% Used in the PageBar. Uses the predefined actions PrevPage etc.
%
\def\pagelink#1#2{%
\pdfstartlink
attr {/Border [0 0 0]} user {/Subtype /Link /A <</S /Named /N /#1>>}%
#2%
\pdfendlink}
%
% Sets a rectangular area of the screen to be a link to a destination.
% #1 is the destination (in the same document); it can be a named or other destination
% #2 defines the rectangle which is the active link area, specified by
% four space separated numbers corresponding to lower left and upper right corners
% #3 is the border width (in "default user-space units")
% #4 is the RGB-color, specified as three space separated numbers R G B between 0 and 1
%
\def\linkarea#1#2#3#4{%
\pdfannot{%
/Subtype /Link
/Rect [#2]
/Border [0 0 #3]
/C [#4]
/A << /S /GoTo /D (#1) >>}}
%
% Make #2 a link to the web destination #1
%
\def\weblink#1#2{%
\pdfstartlink attr {/Border [0 0 0]} user {/Subtype /Link /A << /S /URI /URI (#1) >>}%
#2\pdfendlink}
%
% Make #3 a link to destination #2 in file #1 (a pdf-file). One of several possible forms of a destination
% is [page /Fit], where "page" is the page number in the file, counting from 0
% Named destinations are also possible
%
\def\filelink#1#2#3{%
\pdfstartlink attr {/Border [0 0 0]} user {/Subtype /Link /A << /S /GoToR /F (#1) /D #2 /NewWindow true >>}%
#3\pdfendlink}
%
% Includes an image. The image file name is #2, and #1 is a specification of the dimension of the
% image (will be scaled accordingly) in the usual TeX syntax (width, height, depth).
%
\def\image[#1]#2{%
\pdfximage #1 {#2}\pdfrefximage\pdflastximage}
%\def\movie#1#2#3{%
%\pdfstartlink attr {/Border [0 0 0]} user {/Subtype /Link /A << /S /Launch /F (mplayer -noborder -ontop -geometry #2 #1) >>}%
%#3\pdfendlink}
\footline{} % Set some
\StandardAspect % default values
%
% Added 28. August 2010. Not part of version 1.0
%
% Setting / unsetting a background image. If no background image is used, the background shows background colour
%
\def\h@lpr{\relax}
\def\BIM@G{\relax}
\def\SetBackground#1{\def\BIM@G{#1}}
\def\UnsetBackground{\def\BIM@G{\relax}}
\output{%
\shipout\vbox{%
\bgc@lset
\ifx\BIM@G\h@lpr \else
{\vbox to 0pt{\kern\vsh@ft\hbox to 0pt{\kern\hsh@ft\image[width\pdfpagewidth height\pdfpageheight]{\BIM@G}\hss}\vss}%
\nointerlineskip}\fi
\makeheadline
\pagebody
\makefootline}
\advancepageno
\ifnum\outputpenalty>-20000\else\dosupereject\fi}
\def\rm{\fam=0} %% Added 14. September 2010. Use roman font in math.
%%%
%%% Macros for incremental showing of slides (frames).
%%% Added 29. March 2012
%%%
\newcount\ind@x
\newcount\m@xind
\long\def\Frames#1#2{\m@xind=#1\long\def\Fr@mes{#2}}
\def\endFrames{\ind@x=0%
\loop\advance\ind@x by 1\begingroup\Fr@mes\endgroup\ifnum\ind@x<\m@xind\NewFrame\repeat}
\def\onframe#1#2{\ifnum\ind@x=#1#2\else\relax\fi}
\def\afterframe#1#2{\ifnum\ind@x>#1#2\else\relax\fi}
\def\beforeframe#1#2{\ifnum\ind@x<#1#2\else\relax\fi}
\def\hide{\setcolour\backgroundcolour}
\catcode`\@=12
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