Re: header/footer suppression

[Guy Worthington <guyw@multiline.com.au>]

Patrick, I'm posting my environment (on the offchance it might help
you read my mind).  It's still very rough.

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%% environment file EnvironmentISOLayout.tex
\startenvironment EnvironmentISOLayout

\autoloadmapfilestrue 

%% pagelayout lucida-brightISOLayout (double page)
\usetypescript [serif] [hanging] [thanh]
\setupencoding [default=texnansi]
\setupbodyfont [cmr,14.4pt]
\setupalign [hanging]
\def\GoldenRatio{1.61803}     
\setbox0\hbox{\dorecurse{26}{\character\recurselevel}} 
\setuplayout [width=2.5\wd0, 
              header=\lineheight, 
              footer=\lineheight, 
              height=\GoldenRatio\makeupwidth, 
              headerdistance=\dimexpr( 
                (\makeupheight - 35\lineheight - \headerheight - \footerheight)
 	        /2), 
   	      footerdistance=\headerdistance, 
              backspace=\dimexpr(\makeupwidth/7), 
              topspace=\dimexpr(\makeupwidth/7)]

%% global stuff
\setupcolors[state=start]

\setuppagenumbering[alternative=doublesided,
                    option=doublesided,
                    location={header,marginedge}]

\setupbackgrounds [header][text] % header line spans just the text block
    [frame=on,topframe=off,leftframe=off,rightframe=off]

%% chapter head layout
\setuplist [section]
           [style=boldslanted,
	    align=right,
	    interaction=all,
	    symbol=1, 
	    width=1em,
	    pagenumber=no,
	    before=,
	    after=]                 
\definetext[chapter][footer][pagenumber] % page on which chapters begin
\setuphead [chapter]
           [page=,
            header=empty,    % suppress header at start of chapter
            footer=chapter,  % footer at start of chapter
	    numberstyle=ChapterTitleNumberFont,
	    textstyle=ChapterTitleTextFont
	    alternative=command,
	    command=\ContentsHead, 
	    prefix=+,
	    before={\page\ifodd\realpageno\else\page[empty]\fi\page[right]},
	    after={\blank[2*big]}]
\definefont [ChapterTitleTextFont][Serif at 24.9pt]
\definefont [ChapterTitleNumberFont][SerifBold at 40pt]
\def\ContentsHead#1#2%
   {\setupframed [frame=off]%
      \framed [width=\hsize,offset=overlay]
         {\placesidebyside
            {\doifmodeelse{*sectionnumber}
               {\framed [width=.6\hsize,offset=1em,strut=no,align=right,
    	                 background=screen] 
                  {\vi In this chapter: \blank
                     \placelist [section][criterium=chapter]}}
               {\framed [width=.6\hsize]{}}} % dummy             
            {\framed [width=.4\hsize,strut=no,align=left]
    		%% Typeset Chapter Number
 		{\hbox{\vbox to 24.9pt{% height ChapterTitleTextFont 
 		       \vss
		       #1}}}
                \vfilll}
         }%
      %% Typeset Chapter Title
      \llap{\lower24.9pt\hbox{#2\hskip0.5em}}}


%% sectionblocks
\startsectionblockenvironment[frontpart]
\setupheadertexts
    [{\getmarking[chapter][first]}]
    [] % an optional second arg let you specify what specific mark you want
    [] % \getmarking[section][first last previous both all]
    [{\getmarking[chapter][first]}]
    \setuppagenumbering [conversion=romannumerals]
\stopsectionblockenvironment

\startsectionblockenvironment[bodypart]
\setupheadertexts
    [Chapter {\getmarking[chapternumber][first]}.
      {\getmarking[chapter][first]}]
    []
    []
    [{\getmarking[section][first]}]
    \setuppagenumber [number=1]
\stopsectionblockenvironment

\setuphead [section]
           [number=no,
	    style=\tfa]
\setuphead [subsection]
           [style=bold]
\setuphead [subsubsection]
           [style=italic]

%% paragraph layout
\setupwhitespace [medium]
\setupindenting [medium]

%% pretty printing
\definetype [typeXML] [option=XML,palet=graypretty,style=\ix]
\definetype [typeJV]  [option=JV,palet=graypretty,style=\ix]
\setuptyping [XML] [palet=graypretty,style=\ix]
\setuptyping [typing] [palet=graypretty, style=\ix]

%% urls
\setupurl [style=smalltype]

% Bug in ConTeXt
\unprotect

\def\preparethenumber#1#2#3% {\??id#1} \number \result
   {\doifelsevaluenothing{#1\c!scheider}
      {\let\numberseparator\empty
       \let#3#2}
      {\edef\numberseparator{\getvalue{#1\c!scheider}}%
       \edef#3{\@EA\separatednumber\@EA{#2}}}}  % hm, etex

\protect

\definesymbol[MySep][--]
\defineenumeration
 [example]
 [location=serried,
  text=Example,
  before=\blank,
  after=\blank,
  way=bychapter,
  style=italic,
  separator={\symbol[MySep]}]

\setupcaptions
  [style=italic,
   separator={\symbol[MySep]},
   align=right]

% visual debuggers
\showframe

\version[temporary]

\stopenvironment

%%% Local Variables: 
%%% mode:context
%%% End:
    
-----


You can run it with a fairly simple test file

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\environment EnvironmentISOLayout

\starttext
\startbodymatter

\chapter {test} 

\section {test} 

\dorecurse{10}{\input tufte }

\section {test}

\dorecurse{12}{\input tufte }

\chapter {test} 

\section {test}

\dorecurse{10}{\input tufte }

\stopbodymatter
\stoptext

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If you compile this, you'll notice that on the very first page I have
a header, I don't want the header, I want a footer with the page number.