Thomas A. Schmitz schrieb:

On Dec 14, 2007, at 5:57 PM, Peter Rolf wrote:

...

Hi,

I desperately need runtime defined colors (state dependent) for my macros. The macros are used with different graphic styles, which is the reason why I want to avoid any style dependent part inside them.

To give you an example. I need something like this

\color [{\StateDependentColor[stateA=green,stateC=blue,whatever=yellow,...]}]

If flag 'stateA' is true at runtime, then color 'green' is used (and so on; order is significant).

I have written such a macro, but sadly it crashes when used inside \color or \definecolor. Tried to debug it, but this is my first experience with the trace commands (probably not the best example to start with). Sigh, still so much to learn.. :)

Any hints are welcome.

I'm not quite sure I understand what you're trying to do, so this is a shot in the dark: instead of low-level trickery, you could use ConTeXt modes:

\startmode[A] \definecolor [mycolor] [g=1] \stopmode

\startmode[B] \definecolor [mycolor] [r=1] \stopmode

You can then set \enablemode[A] in your file or pass the mode on the commandline: texexec --mode=A

Thanks Thomas for your help. I can do this without low-level trickery, but this would mean one or two (fore|backgroundcolor) additional macro(s) per building block (>20) for every graphic style (currently 2; more to come). This makes about 60 stupid little macros..... nope. I think that in some special cases I must do this anyway (where the color is choosen from a combination of states), but most times a general macro will do. I will try to get it run this weekend (have to learn TeX debugging first). But I wouldn't be surprised if this is the easier part of the problem. We will see :) Greetings, Peter

HTH

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Wolfgang Schuster schrieb:

2007/12/14, Peter Rolf :

...

Hi,

I desperately need runtime defined colors (state dependent) for my macros. The macros are used with different graphic styles, which is the reason why I want to avoid any style dependent part inside them.

To give you an example. I need something like this

\color[{\StateDependentColor[stateA=green,stateC=blue,whatever=yellow,...]}]

If flag 'stateA' is true at runtime, then color 'green' is used (and so on; order is significant).

I have written such a macro, but sadly it crashes when used inside \color or \definecolor. Tried to debug it, but this is my first experience with the trace commands (probably not the best example to start with). Sigh, still so much to learn.. :)

Any hints are welcome.

Regards, Peter

Hi Peter,

can you try this (untested),

Hi Wolfgang, your idea works pretty good (I haven't thought about \ifcase 'til now). Still the problem is, that - currentstate must be set somehow - the colors and the number of used states vary from macro to macro So I have to define individual variants of \statecolor (with non fixed state=number pairs), or add an entry for every single state (currently 9). The later method is too ugly (imagine the case that you only need states 0 and 8) and will be hard to maintain if new states arise. I end up with 60 macros and that is what I want to avoid. Anyhow thanks for your help. I will try to trace my color macro while listening the right music for such problems (Yo La Tengo - I am not afraid of you and will beat your ass). Hopefully it works. ;) Greetings, Peter

\chardef\stateA\zerocount \chardef\stateB\plusone \chardef\stateC\plustwo

\let\currentstate\stateA

\def\statecolor{\ifcase\currentstate red\or green\or blue\fi}

\starttext

\color[\statecolor]{Currentstate}

\let\currentstate\stateB

\color[\statecolor]{Currentstate}

\let\currentstate\stateC

\color[\statecolor]{Currentstate}

\stoptext

Wolfgang ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!

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Taco Hoekwater schrieb:

Peter Rolf wrote:

...

I have written such a macro, but sadly it crashes when used inside \color or \definecolor. Tried to debug it, but this is my first experience with the trace commands (probably not the best example to start with). Sigh, still so much to learn.. :)

The problem is that it defines things, and you can't do that inside an argument. Solution: rewrite the macro to define a new macro (like \def\currentStateDependentColor{green}) instead of expanding on the fly. Then you have to do something like this:

\StateDependentColor[stateA=green,stateC=blue,whatever=yellow,...] \ color[\currentStateDependentColor]

And that should work.

:)) THANK YOU TACO!!! Best wishes, Peter

Best wishes, Taco ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!

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\setuppagenumber[state=stop] \setupcolors[state=start] \definecolor[colorA] [red] \definecolor[colorB] [green] \definecolor[colorC] [blue] \newconditional\CondA \newconditional\CondB \newconditional\CondC \unprotect \def\CurrentStateDependentColor{} \def\GetStateDependentColor#1% {\bgroup \rawgetparameters[SDC@][A=,B=,C=,#1]% \def\docommand##1% {\doifdefined{Cond##1} % conditional is known.. {\expandafter\ifconditional\csname Cond##1\endcsname % ..AND true.. \doifsomething{\csname SDC@##1\endcsname} % ..AND a color is assigned \donetrue \else\donefalse\fi}% \ifdone\xdef\CurrentStateDependentColor{\csname SDC@##1\endcsname}% \expandafter\quitcommalist\fi}% \processcommacommand[A,B,C]\docommand % raw version does not work! why? \egroup} \protect \starttext %\settrue\CondA \settrue\CondB \settrue\CondC %\tracingonline=1 %\tracingall=1 %\tracingmacros=1 %\tracingcommands=2 \GetStateDependentColor{A=colorA,C=colorC} %\definecolor[testcolor][\TESTcolor] \switchtocolor[\CurrentStateDependentColor] %\tracingmacros=0 %\tracingall=0 THANK YOU TACO!!! \stoptext