[NTG-context] \vfill shifts content off grid

Hans Hagen pragma at wxs.nl
Thu Sep 1 14:59:46 CEST 2016


On 9/1/2016 2:18 PM, Henri Menke wrote:
> On 09/01/2016 01:53 PM, Hans Hagen wrote:
>> On 9/1/2016 1:22 PM, Henri Menke wrote:
>>> On 09/01/2016 09:33 AM, Hans Hagen wrote:
>>>> On 8/31/2016 7:45 PM, Henri Menke wrote:
>>>>> Dear list,
>>>>>
>>>>> when I use a body font size other than the standard, issuing \vfill will move the content off the grid.  MWE is below.  How do I fix this?
>>>>
>>>> that's how vfill works, you can try \vskip30\lineheight with a value you like
>>>
>>> Hm.  Then I'd like to reformulate my question:  How do I flush content to the bottom of the page when grid is enabled without having to specific how many lines to clear.
>>
>> trial and error:
>>
>> \vfilll \strut World \par \removedepth \page
>
> This is not very satisfactory because it does not work unconditionally.  For instance with lucidaot it is still shifted off the grid.
>
> \setupbodyfont[lucidaot,9pt]
> \setuplayout[grid=yes]
> \showgrid
> \starttext
> Hello
>
> \vfill
>
> World\strut\par\removedepth
> \stoptext
>
> I have come up with this other really hackish solution.  I just put the text on a layer and align this to the last line of the grid which I previously computed in Lua (Brrr).  Also, this has the disadvantage that text might flow into the layer (it's in the background).
>
> \setupbodyfont[9pt]
> \setuplayout[grid=yes]
> \showgrid
>
> \definelayer [flushbottom]
> \setupbackgrounds [text] [background=flushbottom]
> \edef\numberoflines{%
>   \ctxlua{context(math.round(tex.dimen.textheight / tex.dimen.lineheight))}}
>
> \starttext
> Hello
>
> \setlayer
>   [flushbottom]
>   [line=\numberoflines,location=grid]
>   {World}
> \stoptext
>
> Is there really no way to have grid-consistent \vfill?  If there isn't please consider this a feature request.

not without some explicit support for it which currently is not there

     \startstandardmakeup[top=,bottom=]
         \strut Hello
         \vss
         \dontleavehmode\raise3\lineheight\hbox{\strut World}
     \stopstandardmakeup



>>
>>
>>>>
>>>>> Cheers, Henri
>>>>>
>>>>> ---
>>>>>
>>>>> \setupbodyfont[9pt]
>>>>> \setuplayout[grid=yes]
>>>>> \showgrid
>>>>> \starttext
>>>>> Hello
>>>>>
>>>>> \vfill
>>>>>
>>>>> World
>>>>> \stoptext
>>>>> ___________________________________________________________________________________
>>>>> If your question is of interest to others as well, please add an entry to the Wiki!
>>>>>
>>>>> maillist : ntg-context at 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
>>>>> ___________________________________________________________________________________
>>>>>
>>>>
>>>>
>>>
>>> ___________________________________________________________________________________
>>> If your question is of interest to others as well, please add an entry to the Wiki!
>>>
>>> maillist : ntg-context at 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
>>> ___________________________________________________________________________________
>>>
>>
>>
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context at 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
> ___________________________________________________________________________________
>


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