[Tex/LaTex] Add an image on the top-left corner of a customized block in beamer

beamerblockenvironments

I would like to use some customized blocks in my beamer presentations, with a layout that is inspired by these examples found on a website :

enter image description here

The idea is to build a specific block environments, like \begin{carefullBlock}... for the first one, \begin{questionBlock}...for the second one, and `\begin{informationBlock}… for the second one, in order to display a block with the same general layout as standard blocks, but without a title line, only text inside, and the corresponding image on the left corner.
The best would be that the left border of these blocks should be aligned with standard blocks. So the image should exceed the left margin a little bit.

Does anyone know how to do it?

Best Answer

One possibility using the tcolorbox package and its beamer skin:

\documentclass{beamer}
\usetheme{Copenhagen}
\usepackage{tcolorbox}
\tcbuselibrary{most}

\setbeamercolor{myblock}{bg=cyan!20}
\pgfdeclareimage[width=20pt]{em}{em.png}
\pgfdeclareimage[width=20pt]{qm}{qm}
\pgfdeclareimage[width=20pt]{st}{st}

\newtcolorbox{eblock}{
  beamer,
  enhanced,
  colback=olive!50,
  overlay={\node at (frame.north west) {\pgfuseimage{em}};}
}
\newtcolorbox{qblock}{
  beamer,
  enhanced,
  overlay={\node at (frame.north west) {\pgfuseimage{qm}};}
}
\newtcolorbox{sblock}{
  beamer,
  enhanced,
  colback=cyan!50,
  overlay={\node at (frame.north west) {\pgfuseimage{st}};}
}

\begin{document}

\begin{frame}

\begin{eblock}
test text test text test text test text test text test text test text test text test text test text test text test text test text test text test text test text test text test text
\end{eblock}\vfill

\begin{qblock}
test text test text test text test text test text test text test text test text test text test text test text test text test text test text test text test text test text test text
\end{qblock}\vfill

\begin{sblock}
test text test text test text test text test text test text test text test text test text test text test text test text test text test text test text test text test text test text
\end{sblock}
\end{frame}

\end{document}

enter image description here

Related Solutions

[Tex/LaTex] Introducing a left margin inside a block environment in beamer

I think this can be achieved in many ways. One possibility is to define a new block environment with custom margins, like this:

 \documentclass{beamer}
 \usetheme{Frankfurt}

\newenvironment<>{myblock}[1]{%
 \begin{actionenv}#2%
 \def\insertblocktitle{\leftskip=10pt\rightskip=10pt\vspace{10pt} #1\vspace{10pt}}%
 \par%
 \usebeamertemplate{block begin}\leftskip=10pt\rightskip=10pt\vspace{10pt}}
 {\par\vspace{10pt}\usebeamertemplate{block end}
 \end{actionenv}}


\begin{document}
\begin{frame}

\begin{myblock}{example title to show 10pt up, down, left and right margins}
 example text to show 10pt up, down, left and right margins
\end{myblock}

\begin{block}{example title to show standard margins}
 example text to show standard margins
\end{block}

\end{frame}
\end{document}

In the new environment (I called it myblock) \leftskip, \rightskip and \vspace are used to set the margins. As an example I set everything to 10pt. If you don't want, e.g. a right margin, just remove the rightskip from the code. I assumed you also wanted to customize the title text margin, if you don't want to just remove the leftskip etc. from \def\insertblocktitle{}. the result is: enter image description here

Another possibility would be with the tcolorbox package, which lets you set margins like this:

\documentclass{beamer} 
\usepackage{tcolorbox}                                 
\tcbuselibrary{skins}                                  


\tcbset{                                               % custom tcolorbox  
        skin=enhanced,                                 
        frame style={fill=blue},                       % sets the frame color
        bottom=10pt,                                    % distance between the body text and the bottom frame
        top=10pt,                                      % distance between the body text and the top frame
        left=10pt,
        right=10pt,
        boxrule=0pt,                                   % frame width
        bottomtitle=10pt,                               % distance between the title text and the bottom title frame               
        toptitle=10pt,                                  % distance between the title text and the top title frame
        lefttitle=10pt,                                  % title text left margin
        righttitle=10pt
}  
\begin{document}
\begin{frame}  
\begin{tcolorbox}[title=test]
 test
\end{tcolorbox}
\end{frame}
\end{document}

result is: enter image description here

edit: I didn't add the beamerposterpackage in my example code because it works both in beamer and beamerposter without modifications.

[Tex/LaTex] Permanent Transparent Block in a Frame in Beamer

Quoting the manual:

\invisible<⟨overlay specification⟩>{⟨text⟩}

This command is the opposite of \visible.

So, what does \visible do? Quoting again the manual:

\visible<⟨overlay specification⟩>{⟨text⟩}

This command does almost the same as \uncover. The only difference is that if the text is not shown, it is never shown in a transparent way, but rather it is not shown at all. Thus, for this command the transparency settings have no effect.

Therefore, if you really want to have the second block transparent, you don't have to use \invisible.

You can use \onslide for example, of course by specifying first \setbeamercovered{transparent}:

\documentclass{beamer}
\usepackage{lmodern}
\usepackage{mwe}% for dummy images
\usepackage{amsmath}
\usetheme{CambridgeUS}
\setbeamercovered{transparent}
\begin{document}
\begin{frame}
\only<1>{
\begin{block}{procedure-1}
 \centering% use this and not the center environment
 \includegraphics<1>[height=1.3in,width=4in]{example-image}
\end{block}
}
\only<2>{
\begin{block}{procedure-2}
 \centering% use this and not the center environment
 \includegraphics<2>[height=1.3in,width=4in]{example-image-a}
\end{block}
}
\only<3->{
\begin{block}{procedure-3}
 \centering% use this and not the center environment
 \includegraphics<3->[height=1.3in,width=4in]{example-image-c}
\end{block}
}
\onslide<4>{
\begin{block}{Mathematical Formulation}
\begin{equation}
 0+0=0
\end{equation}
\end{block}
}
\end{frame}
\end{document}

The result:

enter image description here

Best Answer

Related Solutions

[Tex/LaTex] Introducing a left margin inside a block environment in beamer

[Tex/LaTex] Permanent Transparent Block in a Frame in Beamer

Related Question