noheaderandfooterlines messes with colors

noheaderandfooterlines messes with colors

[Eric Détrez]

Here is a minimal example :

\usemodule[tikz]
\starttext
\noheaderandfooterlines
\starttikzpicture
   \draw(0,2) node[color=red]{This should be red};
   \draw(0,0) node[color=red]{This is red};
\stoptikzpicture
\stoptext

The first line is written in black
but when I comment \noheaderandfooterlines both lines are red

This seems a curious effect

The goal is to get a nice front page with tikz drawings and text at the 
right place.
Please don't tell me to use metaFun.
-- 
Eric Détrez
Informatique
Lycée Faidherbe, Lille
http://eric-detrez.fr
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Re: noheaderandfooterlines messes with colors

[Aditya Mahajan]

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On Sat, 1 Aug 2015, Eric Détrez wrote:

> Here is a minimal example :
>
> \usemodule[tikz]
> \starttext
> \noheaderandfooterlines
> \starttikzpicture
>   \draw(0,2) node[color=red]{This should be red};
>   \draw(0,0) node[color=red]{This is red};
> \stoptikzpicture
> \stoptext
>
> The first line is written in black
> but when I comment \noheaderandfooterlines both lines are red
>
> This seems a curious effect

Using \forcecolorhack works for this example:

\starttikzpicture
   \forcecolorhack
    \draw(0,2) node[color=red]{This should be red};
    \draw(0,0) node[color=red]{This is red};
\stoptikzpicture

Aditya

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Re: noheaderandfooterlines messes with colors

[Eric Détrez]

Le 01-08-2015 22:32, Aditya Mahajan a écrit :
> On Sat, 1 Aug 2015, Eric Détrez wrote:
> 
>> Here is a minimal example :
>> 
>> \usemodule[tikz]
>> \starttext
>> \noheaderandfooterlines
>> \starttikzpicture
>>   \draw(0,2) node[color=red]{This should be red};
>>   \draw(0,0) node[color=red]{This is red};
>> \stoptikzpicture
>> \stoptext
>> 
>> The first line is written in black
>> but when I comment \noheaderandfooterlines both lines are red
>> 
>> This seems a curious effect
> 
> Using \forcecolorhack works for this example:
> 
> \starttikzpicture
>   \forcecolorhack
>    \draw(0,2) node[color=red]{This should be red};
>    \draw(0,0) node[color=red]{This is red};
> \stoptikzpicture
> 
> Aditya

It seems there is a problem :
tex error       > tex error on line 3 in file 
/home/ericd13/documents/Context/essaicouleur.tex: ! Leaders not followed 
by proper glue

<to be read again>
\hskip
\forcecolorhack ->\leaders \hrule \hskip
                                          \zeropoint \relax

I use context minimal

-- 
Eric Détrez
Informatique
Lycée Faidherbe, Lille
http://eric-detrez.fr
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___________________________________________________________________________________

Re: noheaderandfooterlines messes with colors

[Hans Hagen]

On 8/3/2015 10:38 AM, Eric Détrez wrote:
> Le 01-08-2015 22:32, Aditya Mahajan a écrit :
>> On Sat, 1 Aug 2015, Eric Détrez wrote:
>>
>>> Here is a minimal example :
>>>
>>> \usemodule[tikz]
>>> \starttext
>>> \noheaderandfooterlines
>>> \starttikzpicture
>>>   \draw(0,2) node[color=red]{This should be red};
>>>   \draw(0,0) node[color=red]{This is red};
>>> \stoptikzpicture
>>> \stoptext
>>>
>>> The first line is written in black
>>> but when I comment \noheaderandfooterlines both lines are red
>>>
>>> This seems a curious effect
>>
>> Using \forcecolorhack works for this example:
>>
>> \starttikzpicture
>>   \forcecolorhack
>>    \draw(0,2) node[color=red]{This should be red};
>>    \draw(0,0) node[color=red]{This is red};
>> \stoptikzpicture
>>
>> Aditya
>
> It seems there is a problem :
> tex error       > tex error on line 3 in file
> /home/ericd13/documents/Context/essaicouleur.tex: ! Leaders not followed
> by proper glue
>
> <to be read again>
> \hskip
> \forcecolorhack ->\leaders \hrule \hskip
>                                           \zeropoint \relax
>
> I use context minimal

\hbox\bgroup\forcecolorhack\starttikzpicture
   \draw(0,2) node[color=red]{This should be red};
   \draw(0,0) node[color=red]{This is red};
\stoptikzpicture\egroup


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Re: noheaderandfooterlines messes with colors

[Aditya Mahajan]

On Mon, 3 Aug 2015, Hans Hagen wrote:

> \hbox\bgroup\forcecolorhack\starttikzpicture
>   \draw(0,2) node[color=red]{This should be red};
>   \draw(0,0) node[color=red]{This is red};
> \stoptikzpicture\egroup

Tikz colors are broken when using anything other than red, blue, or green. 
I know that colors defined in ConTeXt used to work in Tikz, so perhaps 
something has changed recently at the TikZ end.

@Mojca: The following definitions can go in t-tikz.tex

\usemodule[tikz]

\define\starttikzpicture
     {\hbox\bgroup\forcecolorhack\tikzpicture}

\define\stoptikzpicture
     {\endtikzpicture\egroup}

\starttext
\red{This is red} \qquad \darkred{This is dark red}

\starttikzpicture
   \draw (0,2) node[color=red] {This is red};
   \draw (4,2) node[color=darkred] {This is dark red};
\stoptikzpicture
\stoptext

Aditya

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___________________________________________________________________________________