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From: Wolfgang Schuster <schuster.wolfgang@googlemail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: conditional format of headings
Date: Wed, 6 Jun 2012 14:46:29 +0200	[thread overview]
Message-ID: <5A541836-3F3B-41AA-A467-64AEF5A423AA@googlemail.com> (raw)
In-Reply-To: <op.wfe8q1sdyxxkfz@pohanka-pc>


Am 05.06.2012 um 10:34 schrieb Jan Pohanka:

> Hello,
> 
> is it possible to have some "conditional format"? I mean I'd like to have different vertical spacing for \section and \subsection when they follows immediately each other and when there is some text between them.

% SectionBlank

\def\DefineSectionBlank
  {\dotripleempty\doDefineSectionBlank}

\def\doDefineSectionBlank[#1][#2][#3]#4%
  {\edef\CurrentSection{#1}%
   \setvalue{#1:#2:\ifthirdargument\the\dimexpr#3\relax\fi}{#4}}

\def\SectionBlank#1#2%
  {\edef\CurrentSection{#1}%
   \executeifdefined{#1:#2:\LastSectionBlankSignal}{\executeifdefined{#1:#2:\the\dimexpr\zeropoint\relax}{\getvalue{#1:#2:}}}}

\let\LastSectionBlankSignal\zeropoint

\EveryPar{\let\LastSectionBlankSignal\zeropoint}

\def\SectionBlankSignal
  {\setevalue{LastSectionBlankSignal}{\the\dimexpr\csname\CurrentSection Signal\endcsname\relax}}

% Heading

\newsignal\PartSignal

\DefineSectionBlank [Part] [before] {\blank[force,48pt]}
\DefineSectionBlank [Part] [after]  {\blank[15pt]\SectionBlankSignal}

\setuphead
  [Part]
  [before=\SectionBlank{Part}{before},
    after=\SectionBlank{Part}{after}]

\newsignal\ChapterSignal

\DefineSectionBlank [Chapter] [before] [\PartSignal] {\blank[\the\dimexpr 12pt*200/100-6pt\relax]}
\DefineSectionBlank [Chapter] [before]               {\blank[\the\dimexpr 12pt*200/100\relax]}
\DefineSectionBlank [Chapter] [after]                {\blank[\the\dimexpr 12pt*150/100\relax]\SectionBlankSignal}

\setuphead
  [chapter]
  [before=\SectionBlank{Chapter}{before},
    after=\SectionBlank{Chapter}{after}]

\newsignal\SectionSignal

\DefineSectionBlank [Section] [before] [\PartSignal]    {\blank[\the\dimexpr 12pt*175/100\relax]}
%\DefineSectionBlank [Section] [before] [\ChapterSignal] {\blank[\the\dimexpr 12pt*175/100-3pt\relax]}
\DefineSectionBlank [Section] [before] [\ChapterSignal] {\blank[\the\dimexpr 12pt*175/100+2cm\relax]}
\DefineSectionBlank [Section] [before]                  {\blank[\the\dimexpr 12pt*175/100\relax]}
\DefineSectionBlank [Section] [after]                   {\blank[\the\dimexpr 12pt*133/100\relax]\SectionBlankSignal}

\setuphead
  [section]
  [before=\SectionBlank{Section}{before},
    after=\SectionBlank{Section}{after}]

\starttext

\chapter{Chapter 1}

\section{Section 1.1}

\chapter{Chapter 2}

text

\section{Section 2.1}

\stoptext

Wolfgang
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  parent reply	other threads:[~2012-06-06 12:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-05  8:34 Jan Pohanka
2012-06-06  7:52 ` Hans Hagen
2012-06-06 11:12   ` Jan Pohanka
2012-06-06 12:46 ` Wolfgang Schuster [this message]
2012-06-08  9:22   ` Jan Pohanka

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