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From: Hans Hagen <pragma@wxs.nl>
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Subject: Re: \startbackground and verbatims
Date: Tue, 22 Dec 1998 11:22:20 +0100
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Gilbert van den Dobbelsteen wrote:

> I am having some difficulties with colored backgrounds and verbatim
> like stuff.

There are two kinds of backgrounds. When you want a background to a page
are specific area of the page, use \setupbackgrounds. This has nothing
to do with the running text. You can put a background behind text, using
\startbackground etc. This will cross the page boder ok, takes care of
some offsets etc. 

> The trouble is the backgrounds, they seem to go beyond the page
> definition. Is there something I can do about that? Perhaps
> with \startregelcorectie or something like that?

How do you mean beyond? 

> I noticed that behaviour before, but on a A4 page it is usually not a
> problem. But this is a interactive layou, where there is not much space
> available on a page. And since the page has colors too, it is pretty
> obvious that backgrounds go beyond the boundaries.

You can set up a screen size. 

> So please, offend me, I am probably doing everything wrong here.

Probably. 

> I also have another problem, with huge butons: I need to create a
> button which is large and contains multiple lines of text (The
> \startposter should do that). I am not very interested in high-lighting
> each word, just highlighting the entire block of text will suffice. Can
> any picture be the background of any macro where achtergrond=xxx is
> available?

Yes. Even multiples and mixed with color: 

\defineoverlay[one][this is one]
\defineoverlay[two][this is the second one]
\defineoverlay[three][this is the last one] 

\setupcolors[state=start]

\framed[background={color,one,two,three},backgroundcolor=red]{Hi there}

> % From TeX by Topic:
> {\catcode`\^^M=13 %
>  \gdef\olines{\catcode`\^^M=13 \def^^M{\par\leavevmode}}%
> }

\obeylines will do. 

> \def\startposter#1{\startachtergrond\bgroup\olines}

wat doet die #1 daar? 

> \def\stopposter{\egroup\stopachtergrond\blanko[2*groot}

\def\startposter{\startachtergrond\startregels}
\def\stopposter {\stopregels\stopachtergrond}

> \starttekst
> 
> \startposter{external}
> Hi there, this is some poster-text
> \stopposter
> 
> ...etcetera (more start/stop poster stuff)

Why the obeylines? 

Hans

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