Re: clipping bug [or the return of the long cat]

[Hans Hagen <pragma@wxs.nl>]

Peter Rolf wrote:
> Hans Hagen schrieb:
>> Peter Rolf wrote:
>>> Hans Hagen schrieb:
>>>> meta-ini.mkiv
>>>>
>>>> \def\grabMPclippath#1#2#3#4#5%
>>>>    {\blabelgroup
>>>>     \edef\width {#3\space}\let\overlaywidth \width
>>>>     \edef\height{#4\space}\let\overlayheight\height
>>>>     \doifdefinedelse{MPC:#1}
>>>>       {\xdef\MPclippath{\getvalue{MPC:#1}}%
>>>>        \ifx\MPclippath\empty\xdef\MPclippath{#5}\fi
>>>>        \setxvalue{MPC:#1}{\MPclippath}}
>>>>       {\xdef\MPclippath{#5}}%
>>>>     \elabelgroup}
>>>>
>>>>
>>> there seem to be an ugly sideeffect in combination with \startTEXpage .. 
>>> \stopTEXpage. I use this to encapsulate my test graphics. The resulting 
>>> page is only 1.1mm width (tested with several different sized gfx; width 
>>> is always this value, height is normal).
>>>
>>> all tested with the beta from 07.06.2008 and luatex trunk (08.06.2008). 
>>> todays beta has additional problems with text color (always black) and 
>>> also some unicolored backgrounds appear black only. so i went back to 
>>> the prior beta version and changed only the clip part.
>> hm ... example ...
>>
> 
> % engine=luatex
> 
> \startuniqueMPgraphic {foo}
>    fill OverlayBox;
> \stopuniqueMPgraphic
> 
> \starttext
> 
> \startTEXpage
> 
> \hsize10cm \vsize10cm
> \uniqueMPgraphic{foo}
> 
> \stopTEXpage
> 
> \stoptext

hmm this is actually undefined behaviour since there is no background

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                                           Hans Hagen | PRAGMA ADE
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