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%D \module
%D [ file=s-present-grow, % was s-pre-10
%D version=unknown,
%D title=\CONTEXT\ Style File,
%D subtitle=Presentation Environment Grow,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
%D This style is derived from the ninth style, which was used first at \EUROTEX\ 99
%D and later at \TUG\ 2000. This alternative builds up a page.
\usemodule[present-windows] % not that much used
\startmodule[present-grow]
%D We use blue colors instead of yellow ones. Since we have used symbolic names, we
%D can easily overload the existing scheme.
\definecolor[LineColor][r=.40,g=.40,b=1.00]
%D Here we don't use fixed dimensions, but fit the sample windows and derive the
%D text windows's width from this one.
\setupframedtexts
[SampleText]
[width=fit,height=fit,
background={background,nextpage}]
%D The topic goes to the top right corner of the screen which means that it is
%D positioned left down to the reference point. Watch how we make data on this layer
%D (here only the topic but it can be more) persistent.
\setuplayer
[topic]
[y=0pt,x=\makeupwidth,
location=lb,
state=repeat,
hoffset=-\FrameSkip,
voffset=\FrameSkip]
%D Clicking on the page brings us back.
\setupbackgrounds
[page]
[background={previouspage,color,topic}]
%D All layers end up on the text area. This could have been the page area too since
%D these have the same dimensions.
\setupbackgrounds
[text]
[background={common,sample,text}]
%D We overload this one (\MKIV):
\defineoverlay [samepage] [\overlaybutton{nextpage}]
%D Because we build up the text window step by step, we will separate the entries by
%D white space.
\startsetups [always]
\setupwhitespace[big]
\setupblank[big]
\stopsetups
%D The \type {\Topic} commands can be simplified to:
\unexpanded\def\Topic#1%
{\resetlayer[topic]
\setlayer[topic]{\bfb\setstrut\color[TextColor]{#1}}}
%D We also provide a way to erase the topic.
\unexpanded\def\NoTopic
{\resetlayer[topic]}
%D We have to redefine the structuring commands to support the resetting of buffer
%D counters.
\newcounter\TextN
\unexpanded\def\StartSample
{\doglobal\newcounter\TextN
\dostartbuffer[sample][StartSample][StopSample]}
\unexpanded\def\StartText
{\doglobal\newcounter\TextN
\dostartbuffer[text][StartText][StopText]}
\unexpanded\def\StartSubText
{\doglobal\increment\TextN
\dostartbuffer[text-\TextN][StartSubText][StopSubText]}
\unexpanded\def\StopText
{\startstandardmakeup
\DoSampleText{text}{common}{nextpage}
\stopstandardmakeup}
\unexpanded\def\StopSubText
{\startstandardmakeup
\DoSampleText{text}{common}{nextpage}
\stopstandardmakeup}
%D The \type {\DoSampleText} command is adapted to support addition of subtexts
%D (each subtext goes into its own buffer).
\unexpanded\def\DoSampleText#1#2#3%
{\setupframedtexts[SampleText][background={background,#3}]
\bgroup
\setups[#1]%
\setups[always]%
\setbox\nextbox=\hbox
{\startSampleText[none]
\getbuffer[#1]\par
\doif{#1}{text}
{\dorecurse{\TextN}{\getbuffer[text-\recurselevel]\par}}
\stopSampleText}
\xdef\SampleTextWidth{\the\wd\nextbox}
\setlayer[#2]{\box\nextbox}%
\egroup}
%D Since we are no longer swapping windows, we end up with a much simplier \type
%D {\Stopidea} macro. We don't reset samples at the inner level.
\unexpanded\def\StartIdea
{\bgroup
\let\StopSample \relax
\let\StopText \relax
\let\StopSubText\relax
\def\StartSample{\dostartbuffer[sample][StartSample][StopSample]}}
\unexpanded\def\StopIdea
{\startstandardmakeup
\DoSampleText{sample}{sample}{nextpage}
\SetTextWidth
\DoSampleText{text} {text} {nextpage}
\stopstandardmakeup
\egroup}
%D Here we determine the width of the text window. It is derived from the width of
%D the sample and stays the same within a sequence.
\unexpanded\def\SetTextWidth
{\ifnum\TextN<1 % yes or no, may change
\scratchdimen=\makeupwidth
\advance\scratchdimen by -\SampleTextWidth
\advance\scratchdimen by \FrameSkip
\xdef\SampleWidth{\the\scratchdimen}%
\fi
\setupframedtexts
[SampleText]
[width=\SampleWidth]}
%D We use the (already implemented) second alternative of the titlepage graphic.
%D Please don't change this.
\defineoverlay[joke] [\useMPgraphic{joke}{n=1}] % not to be changed !
\stopmodule
\continueifinputfile{s-present-grow.mkiv}
\usemodule[present-common]
\inputpresentationfile{examples/present-grow-001.tex}
|
