Breakable tcolorbox for the problems

tcolorbox

Hi I wanted to make a tcolorbox breakable, because while I was using it it seems is not andr I tried to fixed but I couldn't. Thank you for your help

\documentclass{book}

\usepackage{amsmath,amssymb}
\usepackage{nccmath}

\usepackage{tcolorbox}
\tcbuselibrary{most}
\newtcolorbox[auto counter,
              number within=chapter,
              list inside=myexercise
              ]{myexercise}[1][]{%
    enhanced,
    title={{\begin{minipage}{\linewidth}\textbf{Ejercicio}~\thetcbcounter.~\textit{#1}\end{minipage}}},
    halign title=left,
    sharp corners,
    colback=white,
    coltitle=black,
    colbacktitle=white,
    boxrule=0pt,frame hidden,
    overlay unbroken={\draw[black,double] (interior.north west)--(segmentation.west);},
    boxed title style={%
      colframe=white, 
      boxrule=0pt,
      colback=white,
      left=0pt,
      right=0pt},
    attach boxed title to top left={xshift={-5pt}},
    underlay unbroken={\draw[help lines,step=3.8mm,black!20!white](interior.south west) grid (segmentation.east);},
    lower separated=false, 
    before lower = {\tcbsubtitle[colback=white, opacityback=0, colframe=black, opacityframe=0, boxrule=1pt, height=1cm,  width=2.55cm, valign=center]{\textbf{Solution:}}}
}
\begin{document}


\begin{myexercise}[This is an example of how this box works, and this is all I got and I want to write a little bit more]{}
Just text Just text Just text Just text Just text Just textJust text Just text Just text Just text Just text Just textJust text Just text Just text Just text Just text Just textJust text Just text Just text Just text Just text Just text
\tcblower
Just text Just text Just text Just text Just text Just textJust text Just text Just text Just text Just text Just textJust text Just text Just text Just text Just text Just textJust text Just text Just text Just text Just text Just text
\end{myexercise}

\end{document}

Best Answer

\documentclass{book}

\usepackage{amsmath,amssymb}
\usepackage{nccmath}
\usepackage{lipsum}

\usepackage{tcolorbox}
\tcbuselibrary{most}
\newtcolorbox[auto counter,
              number within=chapter,
              list inside=myexercise
              ]{myexercise}[1][]{%
    enhanced, breakable,
    title={{\begin{minipage}{\linewidth}\textbf{Ejercicio}~\thetcbcounter.~\textit{#1}\end{minipage}}},
    halign title=left,
    sharp corners,
    colback=white,
    coltitle=black,
    colbacktitle=white,
    boxrule=0pt,frame hidden,
    underlay unbroken and first={%
         \ifnumequal{\tcbsegmentstate}{0}{
            \draw[black,double] (interior.north west)--(interior.south west);
        }{\ifnumequal{\tcbsegmentstate}{1}{
                \draw[black,double] (interior.north west)--(segmentation.west);
            \begin{tcbclipinterior}
                    \draw[help lines, step=3.8mm, black!20!white](segmentation.south west) grid (frame.south east);
            \end{tcbclipinterior}
        }{\ifnumequal{\tcbsegmentstate}{2}{
            \begin{tcbclipinterior}
                    \draw[help lines, step=3.8mm, black!20!white](interior.north west) grid (interior.south east);
            \end{tcbclipinterior}
        }}}
    },
    underlay middle and last={%
         \ifnumequal{\tcbsegmentstate}{0}{
            \draw[black,double] (interior.north west)--(interior.south west);
        }{\ifnumequal{\tcbsegmentstate}{1}{
                \draw[black,double] (interior.north west)--(segmentation.west);
            \begin{tcbclipinterior}
                    \draw[help lines, step=3.8mm, black!20!white](segmentation.south west) grid (frame.south east);
            \end{tcbclipinterior}
        }{\ifnumequal{\tcbsegmentstate}{2}{
            \begin{tcbclipinterior}
                    \draw[help lines, step=3.8mm, black!20!white](interior.north west) grid (interior.south east);
            \end{tcbclipinterior}
        }}}
    },
    boxed title style={%
      colframe=white, 
      boxrule=0pt,
      colback=white,
      left=0pt,
      right=0pt},
    attach boxed title to top left={xshift={-5pt}},
    lower separated=false, 
    before lower = {\tcbsubtitle[colback=white, opacityback=0, colframe=black, opacityframe=0, boxrule=1pt, height=1cm,  width=2.55cm, valign=center]{\textbf{Solution:}}}
}
\begin{document}


\begin{myexercise}[This is an example of how this box works, and this is all I got and I want to write a little bit more]{}
\lipsum[1-10]
\tcblower
\lipsum[1-10]
\end{myexercise}

\end{document}

Related Solutions

[Tex/LaTex] Automatically add \vfill for breakable tcolorbox

From an aesthetical point of view, all solutions are somewhat ugly ... the choice of what is least ugly should be finally up to you ;-)

Let's call your problem description a first 'solution', i.e. the available space is put after the first box part.

The second solution would be to put the available space inside but at the end of the first box part. tcolorbox supports this using the height fixed for option:

\documentclass{article}
\usepackage{lipsum}
\usepackage{tcolorbox}
\tcbuselibrary{skins,breakable}
\tcbset{enhanced jigsaw}
\begin{document}
\begin{tcolorbox}[breakable,title=My breakable box,
  height fixed for=first and middle]
  \begin{tcolorbox}[title = box1]
    \lipsum[1]
  \end{tcolorbox}
  \vfill
  \begin{tcolorbox}[title = box2]
    \lipsum[1]
  \end{tcolorbox}
  \begin{tcolorbox}[title = box3]
    \lipsum[1]
  \end{tcolorbox}
\end{tcolorbox}
\end{document}

enter image description here

The \vfill was added for fun to show that it has no effect here.

The third solution tries to stretch the content of the first box part to cope the available space. For this, I use a patch for the height fixed for option. Note that this will not work properly, if the outer box has a lower part. Now, the \vfill comes to action:

\documentclass{article}
\usepackage{lipsum}
\usepackage{tcolorbox}
\tcbuselibrary{skins,breakable}
\tcbset{enhanced jigsaw}

\makeatletter

\def\tcb@break@ch@fixed{%
  \ifdim\tcb@natheight<\tcb@h@page\relax%
    \tcbdimto\tcb@h@upper{\tcb@h@upper+\tcb@h@page-\tcb@natheight}%
    \setbox\tcb@upperbox=\vbox to\tcb@h@upper\relax{\unvbox\tcb@upperbox}%
    \tcbdimto\kvtcb@height@fixed{\tcb@h@page}%
    \tcb@ch@fixed%
  \else%
    \tcb@ch@natural%
  \fi%
}

\makeatother

\begin{document}
\begin{tcolorbox}[breakable,title=My breakable box,
  height fixed for=first and middle]
  \begin{tcolorbox}[title = box1]
    \lipsum[1]
  \end{tcolorbox}
  \vfill
  \begin{tcolorbox}[title = box2]
    \lipsum[1]
  \end{tcolorbox}
  \begin{tcolorbox}[title = box3]
    \lipsum[1]
  \end{tcolorbox}
\end{tcolorbox}
\end{document}

enter image description here

Of course, you could use after={\par\vfill} as an option for your inner boxes to get rid of manually adding the \vfill commands.

[Tex/LaTex] Unknown option `breakable’ for package `tcolorbox’

For using breakable, you must load the library : breakable. refer to the doc : texdoc tcolorbox section 9

\documentclass{article}
\usepackage[breakable]{tcolorbox}
\tcbuselibrary{hooks, breakable, skins}
\usepackage{lipsum}

\begin{document}

\begin{tcolorbox}[enhanced, breakable, title=My breakable box]
\lipsum[1-6]
\end{tcolorbox}

\end{document}

Best Answer

Related Solutions

[Tex/LaTex] Automatically add \vfill for breakable tcolorbox

[Tex/LaTex] Unknown option `breakable’ for package `tcolorbox’

Related Question