Hi Wolfgang, Indeed your solution works without any flaw… Looking at your code, I learned that Overlaybox is an object which can be filled with a background color, as in: fill OverlayBox withcolor lightgray ; so that the background can be in color. Should we add this kind of problems and solutions to the wiki? If yes, I am willing to do so. Best regards: OK On 18 oct. 2010, at 17:22, 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]
\starttext
\setupbackground[background=DrawBackground]
\input knuth
\StartBackground \dorecurse{12}{\input knuth\par} \StopBackground
\input knuth
\StartBackground \input knuth\par \StopBackground
\input knuth
\stoptext
Wolfgang
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