pagination bug

pagination bug

[Nigel King]

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Hans,
The following minimum file does not paginate correctly. It overflows 
the second page. Removing the figure or the second level of itemization 
fixes the pagination. I have enclosed the text of the file and the file 
itself for ease of reproduction.

I am using the latest stable version from i-installer. I actually think 
I have had this problem before but not tracked it down.

TIA
--
Nigel


\starttext
\placefigure
   [here]
   [fig:a]
   {big figure}
  {\externalfigure[koe][width=\textwidth,height=\textwidth]}

\startitemize[packed,n]
\dorecurse{10} {\item repeated}
\startitemize[packed,a,columns]
\dorecurse{10} {\item repeated indent}
\stopitemize

\stopitemize
\dorecurse{7}{\input zapf \par\relax}

\stoptext



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Re: pagination bug

[Nigel King]

Hans,
I may not have stated the seriousness of this bug adequately. What I 
meant to say was that after the first page the example doen't paginate 
at all!

TIA
Nigel

On 25 May 2004, at 18:30, Nigel King wrote:

> Hans,
> The following minimum file does not paginate correctly. It overflows 
> the second page. Removing the figure or the second level of 
> itemization fixes the pagination. I have enclosed the text of the file 
> and the file itself for ease of reproduction.
>
> I am using the latest stable version from i-installer. I actually 
> think I have had this problem before but not tracked it down.
>
> TIA
> --
> Nigel
>
>
> \starttext
> \placefigure
>   [here]
>   [fig:a]
>   {big figure}
>  {\externalfigure[koe][width=\textwidth,height=\textwidth]}
>
> \startitemize[packed,n]
> \dorecurse{10} {\item repeated}
> \startitemize[packed,a,columns]
> \dorecurse{10} {\item repeated indent}
> \stopitemize
>
> \stopitemize
> \dorecurse{7}{\input zapf \par\relax}
>
> \stoptext
>
>
> <bug.tex>
>

Re: pagination bug

[Hans Hagen]

At 19:30 25/05/2004, you wrote:
>Hans,
>The following minimum file does not paginate correctly. It overflows the 
>second page. Removing the figure or the second level of itemization fixes 
>the pagination. I have enclosed the text of the file and the file itself 
>for ease of reproduction.
>
>I am using the latest stable version from i-installer. I actually think I 
>have had this problem before but not tracked it down.
>
>TIA
>--
>Nigel
>
>
>\starttext
>\placefigure
>   [here]
>   [fig:a]
>   {big figure}
>  {\externalfigure[koe][width=\textwidth,height=\textwidth]}
>
>\startitemize[packed,n]
>\dorecurse{10} {\item repeated}
>\startitemize[packed,a,columns]
>\dorecurse{10} {\item repeated indent}
>\stopitemize
>
>\stopitemize
>\dorecurse{7}{\input zapf \par\relax}
>
>\stoptext

I'm not that sure if the next will not interfere with other situations, so 
please play a bit with white space settings ans such and mixed one/two 
column modes

\def\endmulticolumns
   {%\par
    \vskip\lineheight\vskip-\lineheight % take footnotes into account
    \dontshowcomposition
    \doflushcolumnfloat  % added recently
   %\doflushcolumnfloats % no, since it results in wrong top floats
    \flushnotes          % before start of columns
    \par
    \ifbalancecolumns
      \global\output{\continuousmulticolumnsout}%
      \goodbreak
      \global\output{\balancedmulticolumnsout}%
    \else
      \goodbreak
    \fi
    \eject               % the prevdepth is important, try e.g. toclist in
    \prevdepth\zeropoint % columns before some noncolumned text text
    \global\output\singlecolumnout
    \global\output{\the\mainoutput}% % % % % todo
    \ifvoid\precolumnbox\else
      \unvbox\precolumnbox
    \fi
    \global\precolumnboxheight\zeropoint
    \endgroup % here
    \nofcolumns\plusone
    \setvsize % the outer one!
\synchronizeoutput % new may 2004 / we need to: \pagegoal\vsize
    \checkendcolumnfootnotes
    \dosomebreak\allowbreak
    \restoresavedfloats} 

Re: pagination bug

[Nigel King]

Hans,
Thank you very much for this I had not realized it would be so 
complicated. The document which raised the problem now works correctly. 
I will try to find other examples.

Thanks again

--
Nigel

On 26 May 2004, at 20:24, Hans Hagen wrote:

> At 19:30 25/05/2004, you wrote:
>> Hans,
>> The following minimum file does not paginate correctly. It overflows 
>> the second page. Removing the figure or the second level of 
>> itemization fixes the pagination. I have enclosed the text of the 
>> file and the file itself for ease of reproduction.
>>
>> I am using the latest stable version from i-installer. I actually 
>> think I have had this problem before but not tracked it down.
>>
>> TIA
>> --
>> Nigel
>>
>>
>> \starttext
>> \placefigure
>>   [here]
>>   [fig:a]
>>   {big figure}
>>  {\externalfigure[koe][width=\textwidth,height=\textwidth]}
>>
>> \startitemize[packed,n]
>> \dorecurse{10} {\item repeated}
>> \startitemize[packed,a,columns]
>> \dorecurse{10} {\item repeated indent}
>> \stopitemize
>>
>> \stopitemize
>> \dorecurse{7}{\input zapf \par\relax}
>>
>> \stoptext
>
> I'm not that sure if the next will not interfere with other 
> situations, so please play a bit with white space settings ans such 
> and mixed one/two column modes
>
> \def\endmulticolumns
>   {%\par
>    \vskip\lineheight\vskip-\lineheight % take footnotes into account
>    \dontshowcomposition
>    \doflushcolumnfloat  % added recently
>   %\doflushcolumnfloats % no, since it results in wrong top floats
>    \flushnotes          % before start of columns
>    \par
>    \ifbalancecolumns
>      \global\output{\continuousmulticolumnsout}%
>      \goodbreak
>      \global\output{\balancedmulticolumnsout}%
>    \else
>      \goodbreak
>    \fi
>    \eject               % the prevdepth is important, try e.g. toclist 
> in
>    \prevdepth\zeropoint % columns before some noncolumned text text
>    \global\output\singlecolumnout
>    \global\output{\the\mainoutput}% % % % % todo
>    \ifvoid\precolumnbox\else
>      \unvbox\precolumnbox
>    \fi
>    \global\precolumnboxheight\zeropoint
>    \endgroup % here
>    \nofcolumns\plusone
>    \setvsize % the outer one!
> \synchronizeoutput % new may 2004 / we need to: \pagegoal\vsize
>    \checkendcolumnfootnotes
>    \dosomebreak\allowbreak
>    \restoresavedfloats}
> _______________________________________________
> ntg-context mailing list
> ntg-context@ntg.nl
> http://www.ntg.nl/mailman/listinfo/ntg-context
>

Re: pagination bug

[Hans Hagen]

At 00:54 27/05/2004, you wrote:

>Thank you very much for this I had not realized it would be so 
>complicated. The document which raised the problem now works correctly. I 
>will try to find other examples.

i only added:

>\synchronizeoutput % new may 2004 / we need to: \pagegoal\vsize

so the patch was easy but the solution may be wrong (i didn't test it in 
grid mode)

Hans   

Re: pagination bug

[Nigel King]

Hans and all,
I do not use grid mode perhaps somebody who does could check that 
nothing is wrong.

On 27 May 2004, at 22:27, Hans Hagen wrote:

> so the patch was easy but the solution may be wrong (i didn't test it 
> in grid mode)
--
Nigel

Re: pagination bug

[Nikolai Weibull]

* Hans Hagen <pragma@wxs.nl> [May 28, 2004 09:40]:
> >\synchronizeoutput % new may 2004 / we need to: \pagegoal\vsize

> so the patch was easy but the solution may be wrong (i didn't test it in
> grid mode)

I have no clue why, but yes, it seems it doesn't solve all problems.
Here's something that fails (and I have a real-life issue with this as
well, which is more or less the same):

\starttext

\dorecurse{7}{\input zapf \par\relax}

\startitemize[columns,four]
\dorecurse{12}{\nop \type{[:alnum:]}}
\stopitemize

\dorecurse{7}{\input zapf \par\relax}

\stoptext

It fails for \startitemize[columns] as well.  It seems that the problem
arises when the itemize is pushed onto the second page.  Remove the
first \dorecurse{7}{\input ...} and it works fine...It would be great to
see this working,
	nikolai

--
::: name: Nikolai Weibull    :: aliases: pcp / lone-star / aka :::
::: born: Chicago, IL USA    :: loc atm: Gothenburg, Sweden    :::
::: page: www.pcppopper.org  :: fun atm: gf,lps,ruby,lisp,war3 :::
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