Screen background in two columns

Screen background in two columns

[Michal Kvasnicka]

Good afternoon.

I'm typesetting a document in two columns. I'd like to typeset examples in it 
just in the rest of the text but with a screen background. I tried this:

\setupcolors[state=start]
\setupscreens[screen=0.8]
\setupbackground
  [background=screen,
   leftoffset=1em, rightoffset=1em, topoffset=1em, bottomoffset=1em]
\setupframedtexts
  [frame=off, background=screen, width=fit]

But both \startbackground and \startframedtext does not allow column/page 
break. I want the background to start e.g. on the bottom of  the left column 
and to go to the top of the right one. How can I get what I want? (Well, 
maybe a hard task in the TeX. Some time ago I would suppose it to be 
unpossible---but then I've seen such a wizardry in the ConTeXt that made me 
to think that everything is possible---at least for Mr. Hagen.) :-)

Many greetings to all of you.
M.K.

Re: Screen background in two columns

[Hans Hagen]

At 01:25 PM 2/7/2003 +0100, Michal Kvasnicka wrote:
>Good afternoon.
>
>I'm typesetting a document in two columns. I'd like to typeset examples in it
>just in the rest of the text but with a screen background. I tried this:
>
>\setupcolors[state=start]
>\setupscreens[screen=0.8]
>\setupbackground
>   [background=screen,
>    leftoffset=1em, rightoffset=1em, topoffset=1em, bottomoffset=1em]
>\setupframedtexts
>   [frame=off, background=screen, width=fit]
>
>But both \startbackground and \startframedtext does not allow column/page
>break. I want the background to start e.g. on the bottom of  the left column
>and to go to the top of the right one. How can I get what I want? (Well,
>maybe a hard task in the TeX. Some time ago I would suppose it to be
>unpossible---but then I've seen such a wizardry in the ConTeXt that made me
>to think that everything is possible---at least for Mr. Hagen.) :-)

I admit that this takes some wizardry to implement, especially if you take 
into account that backgrounds should work in tables, tabulate, floats, 
inside and outside text areas, obey indentation, left/rightskip, hanging, 
nested backgrounds, multiple layers, etc ; this (still somewhat 
experimental mechanism will be discussed in details.pdf).

% output=pdftex

\setuplayout
   [width=middle,height=middle,
    backspace=1cm,topspace=1cm,
    header=0pt,footer=0pt,grid=yes]

\setuptolerance[verytolerant,stretch]

\setupindenting[big]

\starttext

\definecolumnset[two][n=3]

\definecolumnsetspan[test]

\definetextbackground[test]
   [location=paragraph, % text
    background=color,
    backgroundcolor=red]

\startcolumnset[two]

\startcolumnsetspan[test]
   \input tufte
\stopcolumnsetspan

\starttextbackground[test]
   \dorecurse{10}{\input tufte \par}
\stoptextbackground

\stopcolumnset

\stoptext

-------------------------------------------------------------------------
                                   Hans Hagen | PRAGMA ADE | pragma@wxs.nl
                       Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
  tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com
-------------------------------------------------------------------------
                        information: http://www.pragma-ade.com/roadmap.pdf
                     documentation: http://www.pragma-ade.com/showcase.pdf
-------------------------------------------------------------------------

Re: Screen background in two columns

[Michal Kvasnicka]

Good evening.

> I admit that this takes some wizardry to implement, especially if you take

Hm. I thought it's a black magic. Maybe a young Christian boy should abstain 
of it. :-)))))

But seriously, it doesn't work. I can't see any color. Yes, I've add 
	\setupcolors[state=start]
and tested it. Where's the bug? And one more question: Can the columns be 
ballanced? I know some time ago it wasn't possible? Is the ConTeXt wizardry 
so mighty?

With many greetings
Michal Kvasnicka

> % output=pdftex
>
> \setuplayout
>    [width=middle,height=middle,
>     backspace=1cm,topspace=1cm,
>     header=0pt,footer=0pt,grid=yes]
>
> \setuptolerance[verytolerant,stretch]
>
> \setupindenting[big]
>
> \starttext
>
> \definecolumnset[two][n=3]
>
> \definecolumnsetspan[test]
>
> \definetextbackground[test]
>    [location=paragraph, % text
>     background=color,
>     backgroundcolor=red]
>
> \startcolumnset[two]
>
> \startcolumnsetspan[test]
>    \input tufte
> \stopcolumnsetspan
>
> \starttextbackground[test]
>    \dorecurse{10}{\input tufte \par}
> \stoptextbackground
>
> \stopcolumnset
>
> \stoptext
>
> -------------------------------------------------------------------------
>                                    Hans Hagen | PRAGMA ADE | pragma@wxs.nl
>                        Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>   tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com
> -------------------------------------------------------------------------
>                         information: http://www.pragma-ade.com/roadmap.pdf
>                      documentation: http://www.pragma-ade.com/showcase.pdf
> -------------------------------------------------------------------------
>
> _______________________________________________
> ntg-context mailing list
> ntg-context@ntg.nl
> http://www.ntg.nl/mailman/listinfo/ntg-context

Re: Screen background in two columns

[Michal Kvasnicka]

Good evening.

> I admit that this takes some wizardry to implement, especially if you take

Hm. I thought it's a black magic. Maybe a young Christian boy should abstain 
of it. :-)))))

But seriously, it doesn't work. I can't see any color. Yes, I've add 
        \setupcolors[state=start]
and tested it. Where's the bug? And one more question: Can the columns be 
ballanced? I know some time ago it wasn't possible? Is the ConTeXt wizardry 
so mighty?

With many greetings
Michal Kvasnicka


> % output=pdftex
>
> \setuplayout
>    [width=middle,height=middle,
>     backspace=1cm,topspace=1cm,
>     header=0pt,footer=0pt,grid=yes]
>
> \setuptolerance[verytolerant,stretch]
>
> \setupindenting[big]
>
> \starttext
>
> \definecolumnset[two][n=3]
>
> \definecolumnsetspan[test]
>
> \definetextbackground[test]
>    [location=paragraph, % text
>     background=color,
>     backgroundcolor=red]
>
> \startcolumnset[two]
>
> \startcolumnsetspan[test]
>    \input tufte
> \stopcolumnsetspan
>
> \starttextbackground[test]
>    \dorecurse{10}{\input tufte \par}
> \stoptextbackground
>
> \stopcolumnset
>
> \stoptext
>
> -------------------------------------------------------------------------
>                                    Hans Hagen | PRAGMA ADE | pragma@wxs.nl
>                        Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>   tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com
> -------------------------------------------------------------------------
>                         information: http://www.pragma-ade.com/roadmap.pdf
>                      documentation: http://www.pragma-ade.com/showcase.pdf
> -------------------------------------------------------------------------
>
> _______________________________________________
> ntg-context mailing list
> ntg-context@ntg.nl
> http://www.ntg.nl/mailman/listinfo/ntg-context

Columnsets

[Michal Kvasnicka]

Good evening.

Is somewhere any general manual for columnsets? Or some general demo in 
english interface? I really like the concept but I don't know how to use it. 
(Moreover, I've all examples Mr. Hagen sent me when my harddisk crashed.)

Many thanks and greetings,
M.K.

Re: Columnsets

[Henning Hraban Ramm]

> Is somewhere any general manual for columnsets? Or some general demo in
> english interface? I really like the concept but I don't know how to  
> use it.
> (Moreover, I've all examples Mr. Hagen sent me when my harddisk  
> crashed.)

Here is some crude test file with layers and columnsets.
Perhaps you find out what you're looking for.
I don't really understand it any more... ;-)

\definelayer[test]
\setupcolors[state=start]
%\setupbackgrounds[page][backgroundcolor=yellow,background={color,foregr 
ound,test}]
%\setlayer[test][x=10cm,y=0cm]{\externalfigure[koe]}
\setuplayer[test][position=yes]

\tracecolumnsettrue \showgrid

\starttext
\definecolumnset[vier][n=4,distance=6mm]
%\definecolumntextarea		[two] [right][x=5,y=45,nx=2,ny=18,state=start]
%\setupcolumntextareatext	[two]  
[right][{\externalfigure[koe][width=\hsize]}]

\startcolumnset[vier]

\input tufte

\placefigure[tblr]{}{}

\input zapf

\input tufte
\placefigure[btrl:3]{}{\framed{test}}

\input zapf
\input tufte

\input zapf
\input tufte
\placefigure[tblr]{}{}

\input zapf
\input tufte

\input zapf

\stopcolumnset

\stoptext

Grüßlis vom Hraban!
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www.fiee.net/texnique/
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