beameritemize
How can I produce bullets like
as they are used in beamer with itemize environments? I want to use them in the text not just for itemizations. Note: I would like the bullets not just to look more or less like the beamer itemize bullets but they should look identical in colour, shape, and size!
This assumes you can use an action specification (that is, you want to highlight the entire \item and not just a part of it). Normally the action specification works like \item<1-|alert@1> text which will show the item from slide 1 onwards and highlights it only on slide 1. What we can do is define our own version of alert to change the itemize item for that specific item and then perform the normal alert as well. This is done by creating a new environment <actionname>env. So to get a myalert action we define the myalertenv environment. We can do this as follows:
\newenvironment{myalertenv}{\only{\setbeamertemplate{itemize item}{\def\mycolor{red}\CorkSquare[size=0.18,linewidth=0.70pt]}}\alertenv}{\endalertenv}
Since I don't know the definition of your cork@colour@normal I change the code a bit to use the \mycolor command. You can just modify it to use what you want. The full code would look like this:
\documentclass{beamer}
\usepackage{tikz}
\begin{document}
\setbeamertemplate{itemize item}{\CorkSquare[size=0.18,linewidth=0.70pt]}
\setbeamertemplate{itemize subitem}{\CorkSquare[size=0.16,linewidth=0.67pt]}
\setbeamertemplate{itemize subsubitem}{\CorkSquare[size=0.14,linewidth=0.65pt]}
\def\mycolor{blue}
\def\CorkSquare[size=#1,linewidth=#2]{%
\begin{tikzpicture}
\draw[use as bounding box]
(+0.75*#1,-0.15*#1)
(+0.80*#1,+0.75*#1)
(+0.75*#1,-0.15*#1);
\filldraw[line width=#2,draw=\mycolor,fill=\mycolor!19!white]
(0,0) rectangle (#1,#1);
\end{tikzpicture}%
}
\newenvironment{myalertenv}{\only{\setbeamertemplate{itemize item}{\def\mycolor{red}\CorkSquare[size=0.18,linewidth=0.70pt]}}\alertenv}{\endalertenv}
\begin{frame}
\begin{itemize}
\item<1-> test
\item<2-|myalert@2> test
\end{itemize}
\end{frame}
\end{document}
Edit: By the way, you should realyl consider changing your \CorkSquare command to just \def\CorkSquare[#1,#2]. Then you can use #1 as the size and put #2 in the options to \filldraw. right now you can also just put , other options behind the linewidth=... but that looks a bit strange when you call it and it would require you to change the order because otherwise draw and fillcolor would be overwritten. This way you would not need the \mycolor construct. Your code would then become the following, which I believe to be a bit cleaner.
\documentclass{beamer}
\usepackage{tikz}
\begin{document}
\setbeamertemplate{itemize item}{\CorkSquare[size=0.18,line width=0.70pt]}
\setbeamertemplate{itemize subitem}{\CorkSquare[size=0.16,line width=0.67pt]}
\setbeamertemplate{itemize subsubitem}{\CorkSquare[size=0.14,line width=0.65pt]}
\def\CorkSquare[size=#1,#2]{%
\begin{tikzpicture}
\draw[use as bounding box]
(+0.75*#1,-0.15*#1)
(+0.80*#1,+0.75*#1)
(+0.75*#1,-0.15*#1);
\filldraw[draw=blue,fill=blue!19!white,#2]
(0,0) rectangle (#1,#1);
\end{tikzpicture}%
}
\newenvironment{myalertenv}{\only{\setbeamertemplate{itemize item}{\CorkSquare[size=0.18,line width=0.70pt,draw=red,fill=red!19!white]}}\alertenv}{\endalertenv}
\begin{frame}
\begin{itemize}
\item<1-> test
\item<2-|myalert@2> test
\end{itemize}
\end{frame}
\end{document}
Edit: After your comment that there was an issue when multiple frames have an alert specification I looked into it. This is in fact the case. It is caused because normally the frame specification created by the action are put on the \only. Actually they are placed after the expansion of the begin of the environment, and so the \only should be last. Right now the \alertenv is last and therefore the frame specification is passed to the alert and not to the \only. We can't put the \alertenv in the \only, because at the end of the environment there is no frame specification and therefore \endalertenv won't be in the only and thus show up in every frame, causiing problems. What we need to do is place some extra code in the \only such that the command at the end is only defined to be \endalertenv when the \only is executed and otherwise is equal to \relax. You can use the following as the environment definition:
\newenvironment{myalertenv}{\let\neweae\relax\only{\setbeamertemplate{itemize item}{\CorkSquare[size=0.18,line width=0.70pt,draw=red,fill=red!19!white]}\alertenv\let\neweae\endalertenv}}{\neweae}
This will only place the modified item label and the alert on frames specified by the frame specification.
You can have what you want with mathtools and its \(math)clap command.
I defined differently your custom bullets, in math mode. Note the endash has not the same width as the + character.
\documentclass{beamer}
\usepackage{mathtools}
\newcommand{\pro}{\item[\boldmath$\mathclap{\color{green}+}$ ]}
\newcommand{\con}{\item[\boldmath$ \mathclap{\color{red}-}$ ]}
\begin{document}
\begin{frame}
\begin{itemize}
\pro item1
\con item2
\end{itemize}
\end{frame}
\end{document}
Note: If the symbols that you want to use all have the same width, the mathclap command is not necessary.
Best Answer