A solution by Luigi: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \newdimen\SpaceLeft \def\CheckSpace{% \ifdim\pagetotal=0pt\SpaceLeft=\vsize\else\SpaceLeft=\pagegoal\advance\SpaceLeft by -\pagetotal\advance\SpaceLeft by -2\lineheight\fi}% \setupcolors[state=start] \long\def\StartBg#1\StopBg{% \bgroup \setbox8000=\vbox{\hsize=\dimexpr\textwidth-1em\relax#1} \CheckSpace% \the\SpaceLeft\the\ht8000 \the\dp8000 \ifdim\dimexpr(\ht8000+\dp8000)>\SpaceLeft\relax % \setbox8001=\vsplit8000 to \SpaceLeft% \setbox8001=\vbox{\unvbox8001}% % \setupbackground [bottomframe=off, rulethickness=1pt, rightframe=on,width=\textwidth, leftframe=on] \startbackground\unvbox8001\stopbackground% \setupbackground [bottomframe=on, rulethickness=1pt, rightframe=on,width=\textwidth, leftframe=on] \startbackground\unvbox8000\stopbackground% \else \setupbackground [bottomframe=on, rulethickness=1pt, rightframe=on, leftframe=on] \startbackground #1\stopbackground% \fi \egroup } \setupbackground [bottomframe=on, rulethickness=1pt, rightframe=on, leftframe=on] \starttext \startbackground \input knuth \stopbackground e poi \StartBg \input knuth \input knuth \input knuth \StopBg \stoptext %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% An alternative solution with the command \definetextbackground: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \setupcolors[state=start] \enableregime[utf] \def\Linea{\startMPcode draw (0,0) -- (\the\textwidth-1,0) withpen pencircle scaled 1bp withcolor red; \stopMPcode } \definetextbackground [Prova] [ mp=background:mp, location=paragraph, rulethickness=1pt, width=broad, leftoffset=1em, rightoffset=1em, after={\Linea} ] \startuseMPgraphic{background:mp} path p; for i = 1 upto nofmultipars : p = (multipars[i] topenlarged 5pt bottomenlarged 10pt); fill p withcolor lightgray ; draw leftboundary p withpen pencircle scaled 1bp withcolor red ; draw rightboundary p withpen pencircle scaled 1bp withcolor red ; endfor; \stopuseMPgraphic \starttext \startProva \input knuth \input knuth \input knuth \input knuth \input knuth \stopProva \stoptext %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% bye ES 2010/10/14 luigi scarso :

On Thu, Oct 14, 2010 at 11:05 AM, Emanuele Sacco wrote:

...

Hi all,

I'm using context MkII. My code is

\setupcolors[state=start] \setupbackground [bottomframe=on, rulethickness=1pt, rightframe=on, leftframe=on]

\starttext Good: \startbackground \input knuth \stopbackground

Not good:

\startbackground \input knuth \input knuth \input knuth \stopbackground \stoptext

The second backgrounded text is on two pages. Is there a way to not show the bottomframe at the end of the first page? thanks

ES -- Al mondo ci sono 10 tipi di persone: quelli che conoscono il sistema binario e quelli che non lo conoscono. ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net archive  : http://foundry.supelec.fr/projects/contextrev/ wiki     : http://contextgarden.net ___________________________________________________________________________________

As always  my pov: a wrapper macro.

\showframe \newdimen\SpaceLeft \def\CheckSpace{% \ifdim\pagetotal=0pt\SpaceLeft=\vsize\else\SpaceLeft=\pagegoal\advance\SpaceLeft  by -\pagetotal\advance\SpaceLeft by -2\lineheight\fi}%

\setupcolors[state=start]

\long\def\StartBg#1\StopBg{% \bgroup \setbox8000=\vbox{#1} \CheckSpace% \the\SpaceLeft\the\ht8000 \the\dp8000 \ifdim\dimexpr(\ht8000+\dp8000)>\SpaceLeft\relax % \setbox8001=\vsplit8000 to \SpaceLeft% \setbox8001=\vbox{\unvbox8001}% % \setupbackground [bottomframe=off, rulethickness=1pt, rightframe=on, leftframe=on] \startbackground\unvbox8001\stopbackground%

\setupbackground [bottomframe=on, rulethickness=1pt, rightframe=on, leftframe=on] \startbackground\unvbox8000\stopbackground% \else \setupbackground [bottomframe=on, rulethickness=1pt, rightframe=on, leftframe=on] \startbackground #1\stopbackground% \fi \egroup }

\setupbackground [bottomframe=on, rulethickness=1pt, rightframe=on, leftframe=on]

\starttext Good: \startbackground \input knuth \stopbackground

Not good:

\StartBg \input knuth \input knuth \input knuth \StopBg

\stoptext

-- luigi ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net archive  : http://foundry.supelec.fr/projects/contextrev/ wiki     : http://contextgarden.net ___________________________________________________________________________________

-- Al mondo ci sono 10 tipi di persone: quelli che conoscono il sistema binario e quelli che non lo conoscono.

On Mon, Oct 18, 2010 at 9:32 AM, Otared Kavian wrote:

On 16 oct. 2010, at 17:30, Emanuele Sacco wrote:

...

A solution by Luigi: […]

Hi Emmanuele, Hi Luigi,

Please excuse me if I get involved in the thread of your discussions… I was interested both by the question ad the solutions, since I had a similar problem some time ago, but I gave up.

Now that you give a solution with \definetextbackground (the solution below), I would like to point out that with this definition the beginning of the highlighted text does not have the upper frame turned on, while at the end the bottom frame is turned on (of course this is what we want). So my question is: can one have both the upper frame turned on at the begining of the highlighted text (and only there) and also the bottom frame turned on at the end (and only there). In other words, a highlighted framed text spanning over two (or more) pages, would be like a big rectangle of which the upper and the bottom frame, as well as the left and right frames, are shown.

Thanks in advance for you attention: OK

With my solution it's a matter of changing few lines bottomframe=off,topframe=on, bottomframe=on,topframe=off, -- luigi

Am 18.10.2010 um 14:18 schrieb Otared Kavian:

Your solution works as intended when the framed, highlighted text with background spans over two pages (though it doesn't when it spans over three pages or more, but this is not a real issue, since it is a bad idea to have such long highlighted texts…).

I guess this is also possible with textbackground: \newcounter\CurrentBackground \def\StartBackground {\doglobal\increment\CurrentBackground \setposition{Background:b:\CurrentBackground}% \startbackground} \def\StopBackground {\stopbackground \setposition{Background:e:\CurrentBackground}} \def\DrawBackground {\ifnum\MPp{Background:b:\CurrentBackground}=\MPp{Background:e:\CurrentBackground} \startMPcode draw topboundary OverlayBox withcolor red ; draw bottomboundary OverlayBox withcolor red ; draw leftboundary OverlayBox withcolor red ; draw rightboundary OverlayBox withcolor red ; \stopMPcode \else\ifnum\realpageno=\MPp{Background:b:\CurrentBackground} \startMPcode draw topboundary OverlayBox withcolor red ; draw leftboundary OverlayBox withcolor red ; draw rightboundary OverlayBox withcolor red ; \stopMPcode \else\ifnum\realpageno=\MPp{Background:e:\CurrentBackground} \startMPcode draw bottomboundary OverlayBox withcolor red ; draw leftboundary OverlayBox withcolor red ; draw rightboundary OverlayBox withcolor red ; \stopMPcode \else \startMPcode draw leftboundary OverlayBox withcolor red ; draw rightboundary OverlayBox withcolor red ; \stopMPcode \fi\fi\fi} \defineoverlay[DrawBackground][\DrawBackground] \starttext \setupbackground[background=DrawBackground] \input knuth \StartBackground \dorecurse{12}{\input knuth\par} \StopBackground \input knuth \StartBackground \input knuth\par \StopBackground \input knuth \stoptext Wolfgang

Reviving an old thread because I found a really simple solution. Hopefully this will also be useful to someone else. On Mon, 18 Oct 2010, Wolfgang Schuster wrote:

Am 18.10.2010 um 14:18 schrieb Otared Kavian:

...

Your solution works as intended when the framed, highlighted text with background spans over two pages (though it doesn't when it spans over three pages or more, but this is not a real issue, since it is a bad idea to have such long highlighted texts…).

I guess this is also possible with textbackground:

\newcounter\CurrentBackground

\def\StartBackground {\doglobal\increment\CurrentBackground \setposition{Background:b:\CurrentBackground}% \startbackground}

\def\StopBackground {\stopbackground \setposition{Background:e:\CurrentBackground}}

\def\DrawBackground {\ifnum\MPp{Background:b:\CurrentBackground}=\MPp{Background:e:\CurrentBackground} \startMPcode draw topboundary OverlayBox withcolor red ; draw bottomboundary OverlayBox withcolor red ; draw leftboundary OverlayBox withcolor red ; draw rightboundary OverlayBox withcolor red ; \stopMPcode \else\ifnum\realpageno=\MPp{Background:b:\CurrentBackground} \startMPcode draw topboundary OverlayBox withcolor red ; draw leftboundary OverlayBox withcolor red ; draw rightboundary OverlayBox withcolor red ; \stopMPcode \else\ifnum\realpageno=\MPp{Background:e:\CurrentBackground} \startMPcode draw bottomboundary OverlayBox withcolor red ; draw leftboundary OverlayBox withcolor red ; draw rightboundary OverlayBox withcolor red ; \stopMPcode \else \startMPcode draw leftboundary OverlayBox withcolor red ; draw rightboundary OverlayBox withcolor red ; \stopMPcode \fi\fi\fi}

\defineoverlay[DrawBackground][\DrawBackground]

\setupbackground[background=DrawBackground]

A much simpler solution using textbackgrounds: \startuseMPgraphic{splitframe} for i=1 upto nofmultipars : if one_piece_multi_par : draw multipars[i] ; elseif multilocs[i]=1 : draw topboundary multipars[i] ; draw leftboundary multipars[i] ; draw rightboundary multipars[i] ; elseif multilocs[i]=2 : draw leftboundary multipars[i] ; draw rightboundary multipars[i] ; elseif multilocs[i]=3 : draw leftboundary multipars[i] ; draw rightboundary multipars[i] ; draw bottomboundary multipars[i]; fi ; endfor ; \stopuseMPgraphic \definetextbackground [splitframe] [state=start, mp=splitframe, location=paragraph] \starttext \startsplitframe \input knuth \endgraf \stopsplitframe \blank[big] \startsplitframe \dorecurse{4}{\input knuth \endgraf} \stopsplitframe \blank[big] \startsplitframe \dorecurse{10}{\input knuth \endgraf} \stopsplitframe \stoptext Aditya