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+%D \module
+%D [ file=s-pre-20,
+%D version=2000.08.07,
+%D title=\CONTEXT\ Style File,
+%D subtitle=Presentation Environment 20,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+\setupbodyfont
+ [lbr,14.4pt]
+
+\setuppapersize
+ [S6][S6]
+
+\setuplayout
+ [topspace=0cm,
+ backspace=0cm,
+ header=0pt,
+ footer=0pt,
+ width=middle,
+ height=middle]
+
+\setupcolors
+ [state=start]
+
+\setupinteraction
+ [state=start,
+ click=no,
+ display=new,
+ color=LineColor,
+ contrastcolor=LineColor]
+
+\setupinteractionscreen
+ [option=max]
+
+\setupsystem
+ [random=big] % once per hour
+
+\startreusableMPgraphic{page}
+ StartPage ;
+ filldraw Page withcolor \MPcolor{PageColor} ;
+ pickup pencircle scaled (.25cm+uniformdeviate.25cm) ;
+ for i=1 upto 200 :
+ drawdot
+ (uniformdeviate PaperWidth,uniformdeviate PaperHeight)
+ withcolor \MPcolor {LineColor} ;
+ endfor ;
+ StopPage ;
+\stopreusableMPgraphic
+
+\startuseMPgraphic{idea}
+ StartPage ;
+ path p ;
+ p := unitsquare xyscaled(\MPw{idea:\realfolio},\MPh{idea:\realfolio}) superellipsed .90 ;
+ p := p shifted \MPxy{idea:\realfolio} ;
+ draw p withpen pencircle scaled .500cm withcolor \MPcolor{PageColor} ;
+ fill p withcolor \MPcolor{\overlaycolor} ;
+ draw p withpen pencircle scaled .250cm withcolor \MPcolor{LineColor} ;
+ p := unitsquare xyscaled(\MPw{title:\realfolio},\MPh{title:\realfolio}) superellipsed .90 ;
+ p := p shifted \MPxy{title:\realfolio} ;
+ draw p withpen pencircle scaled .250cm withcolor \MPcolor{PageColor} ;
+ fill p withcolor \MPcolor{\overlaycolor} ;
+ draw p withpen pencircle scaled .125cm withcolor \MPcolor{LineColor} ;
+ StopPage ;
+\stopuseMPgraphic
+
+\definecolor[PageColor][s=.50]
+\definecolor[TextColor][s=.80]
+\definecolor[DoneColor][s=.65]
+\definecolor[LineColor][r=.7,g=.6,b=.5]
+
+\defineoverlay [idea] [\useMPgraphic {idea}]
+\defineoverlay [page] [\reuseMPgraphic{page}]
+
+\setupbackgrounds
+ [page]
+ [background={page,forward}]
+
+\defineoverlay[forward][\overlaybutton{forward}]
+
+% alternatief: buffer en ander regime, zodat lokale kleuren
+% kunnen worden genilled. Pos gebruiken om te positioneren.
+
+\definereference[thispage][page(\realfolio)]
+
+\newbox\firstideabox \setbox\firstideabox =\null
+\newbox\secondideabox \setbox\secondideabox=\null
+\newbox\thirdideabox \setbox\thirdideabox =\null
+
+\def\StartTopic% bottom title, top title
+ {\dodoublegroupempty\doStartTopic}
+
+\def\doStartTopic#1#2% the positions end up at each page -)
+ {\setbox\firstideabox=
+ \vbox to \makeupheight
+ \bgroup
+ \getrandomdimen\scratchdimen{.5cm}\makeupheight
+ \vskip 0cm plus \scratchdimen
+ \hbox to \makeupwidth
+ \bgroup
+ \getrandomdimen\scratchdimen{.5cm}\makeupwidth
+ \hskip 0cm plus \scratchdimen
+ \setbox\scratchbox=\hbox\bgroup\hpos{idea:\realfolio}
+ \bgroup
+ \getrandomdimen\hsize{.5\makeupwidth}{.7\makeupwidth}%
+ \framed
+ [offset=3ex,align=middle,strut=no,frame=off,
+ before=,after=]
+ \bgroup
+ \setupwhitespace[big]%
+ \doifsomething{#2}{\Title{#2}}%
+ \def\StopTopic{%
+ \egroup
+ \egroup
+ \egroup
+ \gotobox{\box\scratchbox}[thispage]%
+ \getrandomdimen\scratchdimen{.5cm}\makeupwidth
+ \hskip 0cm plus \scratchdimen
+ \egroup
+ \getrandomdimen\scratchdimen{.5cm}\makeupheight
+ \vskip 0cm plus \scratchdimen
+ \hbox to \makeupwidth
+ \bgroup
+ \hfill
+ \hpos{title:\realfolio}
+ {\button[offset=1.5ex,frame=off]{#1}[backward]}%
+ \getrandomdimen\scratchdimen{.5cm}{2.5cm}%
+ \hskip \scratchdimen
+ \egroup
+ \getrandomdimen\scratchdimen{.5cm}{1.5cm}
+ \vskip \scratchdimen
+ \egroup
+ \setbox\secondideabox=\vbox
+ {\framed
+ [offset=overlay,frame=off,background=idea,backgroundcolor=TextColor]
+ {\copy\firstideabox}}
+ \setbox\firstideabox=\vbox
+ {\framed
+ [offset=overlay,frame=off,background=idea,backgroundcolor=DoneColor]
+ {\LineColor\copy\firstideabox}}
+ \startstandardmakeup
+ \startoverlay
+ {\copy\thirdideabox }
+ {\copy\secondideabox}
+ \stopoverlay
+ \stopstandardmakeup
+ \setbox\thirdideabox=\vbox
+ {\startoverlay
+ {\copy\thirdideabox }
+ {\copy\firstideabox}
+ \stopoverlay}}}
+
+\long\def\TitlePage#1#2%
+ {\bgroup
+ \switchtobodyfont[32pt]
+ \StartTopic{#1}#2\StopTopic
+ \egroup}
+
+\def\Title#1{\midaligned{\bfb#1}\blank}
+
+\doifnotmode{demo}{\endinput}
+
+% \usemodule[pre-super] % super ellipse as well as superpositioned
+
+\starttext
+
+\setupoutput[pdftex]
+
+\TitlePage{August 2000}{Something Very Important}
+
+\StartTopic{Alpha}
+ A simple and not too long text just to show the idea.
+ A simple and not too long text just to show the idea.
+ A simple and not too long text just to show the idea.
+\StopTopic
+
+\StartTopic{Beta and Gamma}
+ A simple and not too long text just to show the idea.
+ A simple and not too long text just to show the idea.
+\StopTopic
+
+\StartTopic{Delta}
+ A simple and not too long text just to show the idea.
+\StopTopic
+
+\StartTopic{Epsilon}
+ A simple and not too long text just to show the idea.
+ A simple and not too long text just to show the idea.
+ A simple and not too long text just to show the idea.
+\StopTopic
+
+\StartTopic{Zeta, Eta and Theta}
+ A simple and not too long text just to show the idea.
+ A simple and not too long text just to show the idea.
+ A simple and not too long text just to show the idea.
+\StopTopic
+
+\StartTopic{Omega}
+ A simple and not too long text just to show the idea.
+ A simple and not too long text just to show the idea.
+ A simple and not too long text just to show the idea.
+ A simple and not too long text just to show the idea.
+\StopTopic
+
+\stoptext