4

I want to render some lines of code inside a tikz node:

\usemodule[tikz]
\definetyping[code][bodyfont=small,escape={`,`}]

\starttext
\tikzset{
  code/.style={rectangle, rounded corners, draw=black}
}
\starttikzpicture[node distance=.7cm]
  \node[code] (g1) {
    \startcode
             i = 1
             t1 = 20
      iloop: if i > t1 goto iexit
    \stopcode
  };
\stoptikzpicture
\stoptext

Which renders:

As you can see, all line breaks are missing. I managed to enhance this by using paragraphs:

\usemodule[tikz]
\definetyping[code][bodyfont=small,escape={`,`}]

\defineparagraphs[CodeNode][n=1]
\setupparagraphs[CodeNode][1][width=.5\textwidth]

\starttext
\tikzset{
  code/.style={rectangle, rounded corners, draw=black}
}
\starttikzpicture[node distance=.7cm]
  \node[code] (g1) {
    \startCodeNode
      \startcode
              i = 1
              t1 = 20
        iloop: if i > t1 goto iexit
      \stopcode
    \stopCodeNode
  };
\stoptikzpicture
\stoptext

This renders:

Which is more close to what I want, but I now needed to give a specific width. How can I create a node that automatically encloses the given code without giving a width?

2

Encapsulate the code in a framed environment. (Using »Making a tight vertical fit« from the Garden)

\usemodule[tikz]

\defineframed
  [codeframed]
  [frame=no,
   width=fit,
   align=right,
   strut=no,
   offset=0pt]

\definetyping
  [code]
  [bodyfont=small,
   escape={`,`},
   before={\startframed[codeframed]},
   after={\stopframed}]

\starttext

\tikzset{
  code/.style={rectangle, rounded corners, draw=black}
}
\starttikzpicture[node distance=.7cm]
  \node[code] (g1) {
    \startcode
             i = 1
             t1 = 20
      iloop: if i > t1 goto iexit
    \stopcode
  };
\stoptikzpicture

\stoptext

enter image description here


The same can be achieved using framedtext which looks, in my opinion, a little bit cleaner than the framed solution. (Thanks to Hans for pointing out location=none)

\usemodule[tikz]

\defineframedtext
  [codeframed]
  [frame=no,
   width=fit,
   location=none,
   offset=0pt]

\definetyping
  [code]
  [bodyfont=small,
   escape={`,`},
   before={\startcodeframed},
   after={\stopcodeframed}]

\starttext

\tikzset{
  code/.style={rectangle, rounded corners, draw=black}
}
\starttikzpicture[node distance=.7cm]
  \node[code] (g1) {
    \startcode
             i = 1
             t1 = 20
      iloop: if i > t1 goto iexit
    \stopcode
  };
\stoptikzpicture

\stoptext

enter image description here


If the usage of TikZ is not compulsory, you might want to use framedtext alone.

\defineframedtext
  [codeframed]
  [autowidth=force,corner=round]

\definetyping
  [code]
  [bodyfont=small,
   escape={`,`},
   before={\startcodeframed},
   after={\stopcodeframed}]

\starttext

\startcode
  i = 1
  t1 = 20
  iloop: if i > t1 goto iexit
\stopcode

\stoptext

enter image description here

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.