[NTG-context] How to make page break & headers in XY arrangements?

[Hans Hagen]

On 3/30/2020 2:21 PM, Mojca Miklavec wrote:
> On Mon, 30 Mar 2020 at 13:21, Hans Hagen wrote:
>> On 3/30/2020 1:03 PM, Mojca Miklavec wrote:
>>>
>>> % I want an actual page break here
>>> \page
>>
>> a rather stipid solution:
>>
>> \dorecurse{15}{\page[empty]}
> 
> I did think of this one (and actually did it for the batch that I had
> to print today).
> But it involves manual counting and when data changes, the file needs
> to be adjusted every time.
> 
> Anyway, this is relatively low priority. If there is no mechanism for
> this in place already, there's no need to add anything new. I can live
> with a few manual adjustments, and I guess I could do something based
> on current page number modulo total subpages as well.\setuppapersize
     [XY][A4]
\setuppaper
     [topspace=10mm,backspace=10mm,dx=0mm,dy=0mm,nx=5,ny=13]
\setuplayout
     [page]
     [topspace=2mm,backspace=2mm]
\setuplayout
     [page]
\setuplayout
     [location=middle]
\setuparranging
     [XY]
\showframe
\setupbodyfont
     [8pt]

\def\somecontent#1{\startpagemakeup #1 \stoppagemakeup}

\starttext

\installpagebreakmethod{mojca}
   {\page
    \scratchcounterone 
\numexpr\rootlayouttargetparameter{nx}*\rootlayouttargetparameter{ny}\relax
    \scratchcountertwo 
\luaexpr{math.mod(\the\realpageno-1,\the\scratchcounterone)}%
    \scratchcounterthree\numexpr\scratchcounterone-\scratchcountertwo\relax
    \dorecurse\scratchcounterthree{\page[empty]}}

\setupheadertexts[1][1][1][1]\dorecurse{50}{\somecontent{Label 1 #1}} 
\page[mojca]
\setupheadertexts[2][2][2][2]\dorecurse{70}{\somecontent{Label 2 #1}} 
\page[mojca]
\setupheadertexts[3][3][3][3]\dorecurse{10}{\somecontent{Label 3 #1}} 
\page[mojca]
\setupheadertexts[4][4][4][4]\dorecurse{30}{\somecontent{Label 3 #1}} 
\page[mojca]

\stoptext


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