[Tex/LaTex] tcolorbox and multiple lines in its title

mdframedtcolorbox

I am dealing with tcolorbox and it was working great until my title exceeded one line width. The problem is that text doesn't wrap to a new line.

Compared to a box with normal text width it looks like this:

I supply title together with other variables like this:

\begin{tcolorbox}[title=...]
...
\end{tcolorbox}

I read in documentation on CTAN (ch. 4.1 on p. 18) that there are some alternatives to title. Those alternatives are adjusted title, squeezed title and squeezed title* but none of those offer multiline support.

Does anyone have an solution?

I probably won't use mdframed package again, because it produced error tex capacity exceeded multiple times while I was in the middle of a large project and it was a pain to swap it for tcolorbox…

This is the minimal working example as requested:

\documentclass[a4paper,10pt]{article}

\usepackage[utf8]{inputenc}
\usepackage[slovene]{babel}

\usepackage{units}
\usepackage{acronym}
\usepackage{hyperref}
\usepackage{multicol}

\usepackage{xcolor}
\usepackage{color}

\hypersetup{
    colorlinks=true
}

\makeatletter
\newcommand*{\rom}[1]{\expandafter\@slowromancap\romannumeral #1@}
\makeatother

\usepackage{tcolorbox}
\tcbuselibrary{breakable}

\newcommand{\vprasanje}[4]{
\begin{tcolorbox}[%
breakable,%
left=5mm,%
right=5mm,%
top=5mm,%
bottom=5mm,%
toptitle=0mm,%
bottomtitle=0mm,%
lefttitle=0mm,%
righttitle=0mm,%
boxrule=0.15mm,%
arc=0.25mm,%
colback=red!20!white,%
colframe=red!80!white,%
fonttitle=\hypersetup{allcolors=white!10!white},%
title={\underline{\makebox[\textwidth]{\textit{"{#2}"}\hfill}}}\newline{\makebox[\textwidth]{\hfill{\scriptsize \uppercase{\textbf{Viri}}:~~\textit{#3}}}}%
]
#4
\end{tcolorbox}
}

\begin{document}

\vprasanje{1}{This is the longlonglong longlonglong longlong longlong longlong longlong longlong longlong long longlong long long long long long long long long long long long long long long long long long long long question.}{some references}{This is the long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long answer.}

\end{document}

Best Answer

The main cause for the problem is that \underline does not wrap the text inside its argument, but \uline from ulem package does, under certain conditions.

There is no need of using outer \parbox etc. environments here, in my point of view.

However, underlining should be not used (too much)

\documentclass[a4paper,10pt]{article}

\usepackage[utf8]{inputenc}
\usepackage[slovene]{babel}
\usepackage{ulem}

\usepackage{units}
\usepackage{acronym}
\usepackage{hyperref}
\usepackage{multicol}

\usepackage{xcolor}
\usepackage{color}

\hypersetup{
    colorlinks=true
}

\makeatletter
\newcommand*{\rom}[1]{\expandafter\@slowromancap\romannumeral #1@}
\makeatother

\usepackage{tcolorbox}
\tcbuselibrary{breakable}

\newcommand{\vprasanje}[4]{
  \begin{tcolorbox}[%
    breakable,%
    left=5mm,%
    right=5mm,%
    top=5mm,%
    bottom=5mm,%
    toptitle=0mm,%
    bottomtitle=0mm,%
    lefttitle=0mm,%
    righttitle=0mm,%
    boxrule=0.15mm,%
    arc=0.25mm,%
    colback=red!20!white,%
    colframe=red!80!white,%
    fonttitle=\hypersetup{allcolors=white!10!white},%
    title={{\itshape\uline{"#2"}}
      \vskip0.1ex
      \hfill\scriptsize \uppercase{\textbf{Viri}}:~~\textit{#3}}%
]
#4
\end{tcolorbox}
}

\begin{document}

\vprasanje{1}{This is the longlonglong longlonglong longlong longlong longlong longlong longlong longlong long longlong long long long long long long long long long long long long long long long long long long long question.}{some references}{This is the long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long answer.}

\end{document}

Related Solutions

[Tex/LaTex] What are the relative strong and weak points between tcolorbox and mdframed

I have the understanding that tcolorbox capabilities are a superset of mdframed. While mdframed tries to give you tools to create colorful frames, they look pale and simpler to me comparing to tcolorbox ones.

I think with enough tikz ninja skills you can achieve pretty much what you want with both, but somehow the tcolorbox syntax and options are simpler to me.

Also, tcolorbox has this "upper part/lower part" capabilities that mdframed lacks and creating a simple colored frame with a title seems simpler with tcolorbox.

From the documentation of mdframed

\mdfdefinestyle{theoremstyle}{%
linecolor=red,middlelinewidth=2pt,%
frametitlerule=true,%
apptotikzsetting={\tikzset{mdfframetitlebackground/.append style={%
shade,left color=white, right color=blue!20}}},
frametitlerulecolor=green!60,
frametitlerulewidth=1pt,
innertopmargin=\topskip,
}
\mdtheorem[style=theoremstyle]{definition}{Definition}
\begin{definition}[Inhomogeneous linear]
\ExampleText
\end{definition}
\begin{definition*}[Inhomogeneous linear]
\ExampleText
\end{definition*}

mdframed theorem

the equivalent in tcolorbox documentation:

\tcbuselibrary{theorems}
\newtcbtheorem[number within=section]{mytheo}{My Theorem}%
{colback=green!5,colframe=green!35!black,fonttitle=\bfseries}{th}

\begin{mytheo}{This is my title}{theoexample}
This is the text of the theorem. The counter is automatically assigned and,
in this example, prefixed with the section number. This theorem is numbered with
\ref{th:theoexample} and is given on page \pageref{th:theoexample}.
\end{mytheo}

tcolorbox theorem

@claudio-fiandrino mentioned that mdframe boxes can be customized with tikz. This is also the case with tcolorbox, since it relies on tikz.

\tcbset{colback=Salmon!50!white,colframe=FireBrick!75!black, width=(\linewidth-8mm)/2,before=,after=\hfill,equal height group=ske}
\begin{tcolorbox}[adjusted title=My title]
This is my content.
\end{tcolorbox}
\begin{tcolorbox}[skin=beamer,beamer,adjusted title=My title]
This is my content.
\end{tcolorbox}

tcolorbox customization

[Tex/LaTex] Adjust frame title rule with tcolorbox

To control the line thickness for the title rule, you can use the titlerule=<length> option; unfortunately, in the current version (3.36 when this answers was written) there's no key to individually control the color of the title rule and this line will inherit the frame color; I'm sure Thomas will add this option in a new update :) In the meantime, you can use enhanced and an overlay to control the attributes individually; something along these lines:

\documentclass{article}
\usepackage{xcolor}
\usepackage[tikz]{mdframed}
\usepackage[many]{tcolorbox}

\mdfsetup{
    roundcorner=4pt,
    linewidth=1.5pt,
    frametitlerule=true, 
    frametitlebackgroundcolor=olive!15,
    % ----------------------------------
    frametitlerulecolor=red,%    How do I get the equivalent of two 
    frametitlerulewidth=4pt,%    options when using {tcolorbox}?
}

\tcbset{
    enhanced,
    fonttitle=\bfseries,
    coltitle=black,
    colbacktitle=olive!15,
    titlerule=0mm,
    overlay={
      \path[draw,red,line width=4pt] ([yshift=-2pt]title.south west) -- ([yshift=-2pt]title.south east);
    } 
}

\begin{document}
\begin{mdframed}[backgroundcolor=green!25, frametitle={Mdframed}]
    Content
\end{mdframed}

\begin{tcolorbox}[colback=green!25, title={Tcolorbox}]
    Content
\end{tcolorbox}
\end{document}

The output:

enter image description here

Best Answer

Related Solutions

[Tex/LaTex] What are the relative strong and weak points between tcolorbox and mdframed

[Tex/LaTex] Adjust frame title rule with tcolorbox

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