Re: [NTG-context] Conditional text appearing in a fixed vertical space

13 Jan 2022

      You can also consider using viewerlayer:

\setupinteraction[state=start]

\defineviewerlayer[solution]

\setupcolors[state=start]
\usecolors[xwi]
\definecolor[keyColor][1.0(maroon)]

\starttext

\startitemize[n]
  \but[ToggleLayer{solution}]
  \samplefile{tufte}
  \blank[big]
  \startviewerlayer[solution]
    \keyColor
    \samplefile{knuth}
  \stopviewerlayer
\stopitemize

\stoptext

I print the file with the solution layer off to a 'clean' file for students.

Gavin via ntg-context  於 2022年1月12日 週三 下午11:30寫道：
...
Thanks Fabrice and Aditya!
With three completely different approaches, I learned three times more
than I was expecting. This has been a great help. I will probably use the
framedtext method, but I learned something from each.
Gavin
...
On Jan 11, 2022, at 4:44 PM, Aditya Mahajan  wrote:
On Tue, 11 Jan 2022, Gavin via ntg-context wrote:
...
Hello List,
I am making problem sets for a physics class. Solutions use the style
defined in the example below, and only appear if the “solution” mode is
enabled. I am struggling to get a vertical space for the solution which is
the same whether or not the solution is printed. Different problems require
different amounts of space, so this should be an argument or key-value.
This is how I would do it: piggyback on framedtext. Note that framedtext
doesn't break across pages. So, if you have long answers, a different
mechanism is needed.
\definemode[solution][no]
\doifmodeelse{solution}
 {\defineframedtext[solution][empty=no]}
 {\defineframedtext[solution][empty=yes]}
% Doesn't work. Why?
%
\expanded{\defineframedtext[solution][empty=\doifmodeelse{solution}{no}{yes}]}
\setupframedtext
 [solution]
 [
   spacebefore=medium,
   spaceafter=medium,
   width=broad,
   foregroundstyle=\rm\it,
   loffset=2em,
   roffset=2em,
   indentnext=no,
 ]
\starttext
Sample question. Always show answer.
\startsolution[height=1in, empty=no]
 Alotta wood!
\stopsolution
How much wood?
\startsolution[height=1in]
 Alotta wood!
\stopsolution
You don't need to specify the height:
\startsolution
 \input ward
\stopsolution
No more questions.
\stoptext
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Re: [NTG-context] Conditional text appearing in a fixed vertical space

fv leung