Fixed inadvertent subtree edit

nigel.stanger / LaTeX

Browse code Fixed inadvertent subtree edit Merge commit '`d438e46`' master
commit 1fc86558ae48049994d55abeb452c57f85985187 2 parents ea1de50 + d438e46 Nigel Stanger authored on 17 Jul 2020

Patch

Showing 1 changed file

Ignore Space Show notes View lectures/lectureslides.cls
\def\filedate{16 July 2020} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % Document class for lecture slides. % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % Version History % v1.0 Initial version % v1.0.1 Removed obsolete pgfarrows package. % v1.0.2 Changed package loading order to ensure that hyperref is last. % v1.0.3 Tweaked formatting of teaching period output on title page. % Moved in some useful miscellaneous macros. % v1.1 Added nochapters option. % v1.2 Added TikZ package and grid macro, and deprecated PGF. % v1.3 Added support for configurable class types. % v1.3.1 Fixed regression that eliminated paper title from title page. % v1.3.2 Added text highlighting and \alertbf macros. % v1.3.3 Corrected trailing spacing of \highlight. % v1.3.4 Added hack to increase itemsep of top-level list items. % v1.3.5 Added normalem option to ulem package. % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \NeedsTeXFormat{LaTeX2e}[2001/06/01] \ProvidesClass{lectureslides}% [2020/07/16 INFO lecture slides style, v.1.3.5] % "Stream of conciousness" chapters vs. explicit individual classes. NOTE: % you can't have both chapters and classes! This is because we use the same % chapter macros for both cases, but they're applied differently (e.g., if % nochapters is set, then \insertchapternumber represent the class number). \newif\if@chapters \@chapterstrue \DeclareOption{nochapters}{\@chaptersfalse} \DeclareOption{\PassOptionsToClass{\CurrentOption}{beamer}} \ProcessOptions \LoadClass{beamer} % Load required packages. \RequirePackage{tikz} \RequirePackage{pgf} % DEPRECATED: only included for backwards compatibility \RequirePackage[normalem]{ulem} \RequirePackage{pifont} \RequirePackage{xr} \RequirePackage{multido} % DO NOT REMOVE THE NEXT LINE! The lecturecommon package loads a bunch % of other packages, some of which are referenced below. \RequirePackage{lecturecommon} % Package initialisation. % Beamer setup. \mode<presentation> { \usetheme{OtagoPlain} \setbeamertemplate{navigation symbols}{} } \if@chapters \SetClassType{Chapter} \fi % hyperref setup. We have to use a slightly convoluted method, because the % macros referenced here haven't been set yet. Define the hyperref setup % as a new macro, and call this AFTER initialising the paper and chapter % variables. \newcommand{\inithyperref}{% \hypersetup{% pdftitle={\PaperCode\ \ClassType\ \thechapter\ Slides},% pdfsubject={\ShortClassTitle},% colorlinks=false% }% } % B-I-G braces {} with a text label % % Arguments: [#1] height of brace; if missing, defaults to the height of the label box % {#2} width of box for label % {#3} the text of the label % % TODO: This could possibly be refactored into a single macro with a l/r argument? \newcommand{\BIGL}[3][]{% \( \left\}% \ifx&#1&\else\parbox[c][#1]{0cm}{}\right.\fi% \begin{minipage}{#2}\flushleft\mbox{}#3\end{minipage}% \ifx&#1&\right.\fi% \)% } \newcommand{\BIGR}[3][]{% \( \ifx&#1&\left.\fi% \begin{minipage}{#2}\flushright\mbox{}#3\end{minipage}% \ifx&#1&\else\left.\parbox[c][#1]{0cm}{}\fi% \right\{% \)% } % Bold-face text using the structure or alert colour. \newcommand<>{\structurebf}[1]{\structure#2{\textbf{#1}}} \newcommand<>{\alertbf}[1]{\alert#2{\textbf{#1}}} % Define the standard beamer colours as actual colours, as we use them % in \color and \textcolor rather a lot. \usebeamercolor[fg]{structure}\colorlet{beamerstructure}{fg} \usebeamercolor[fg]{alerted text}\colorlet{beameralert}{fg} % Beamer-aware strikeout. \newcommand<>{\strikeout}[1]{\alt#2{\sout{#1}}{#1}} % Coloured highlighting of text (via Mark George). % \vphantom gives correct ascender and descender height for box. \newcommand{\highlight}[2][yellow!75]{\setlength{\fboxsep}{1pt}\hskip-1pt\colorbox{#1}{\vphantom{dy}#2}\hskip-1pt} % Uses the same spacing as \highlight, but does no highlighting. Use on the % original code when using incremental highlighting. \newcommand{\nohighlight}[1]{\highlight[white!0]{#1}} \newcommand{\error}[1]{\highlight[red!75]{#1}} % Document setup. \author{} \if@chapters \title{\PaperCode} \else \title{\PaperCode \\ \PaperTitle} \fi \subtitle{\ClassType\ \insertchapternumber: \ClassTitle} \institute{Department of \DepartmentName} \date{\TeachingPeriod, \YearOffered} % Some useful miscellaneous macros. % Create an "invisible" cell in a table for consistent spacing purposes. % It does so by taking the width of the supplied text and generating an % empty box 1pt wider. \newcommand{\InvisibleCell}[2]{% \multicolumn{1}{#1}{\makebox[\widthof{#2} + 1pt]{}}% } % Draw a grid to aid PGF picture drawing/debugging. % DEPRECATED: Use \DrawGridTikZ instead. \newcommand{\DrawGrid}[2]{% \begin{pgfscope}% \color{lightgray}% \pgfsetlinewidth{0.5pt}% \pgfpathgrid[step={\pgfxy(0.2,0.2)}]{\pgfxy(0,0)}{\pgfxy(#1,#2)}% \pgfusepath{stroke}% \pgfsetlinewidth{1pt}% \pgfpathgrid[step={\pgfxy(1,1)}]{\pgfxy(-0.1,-0.1)}{\pgfxy(#1+0.1,#2+0.1)}% \pgfusepath{stroke}% \pgfputat{\pgfxy(0,-0.2)}{\pgfbox[center,top]{\tiny 0}}% \pgfputat{\pgfxy(-0.2,0)}{\pgfbox[right,center]{\tiny 0}}% \multido{\nx=1+1}{#1}{\pgfputat{\pgfxy(\nx,-0.2)}{\pgfbox[center,top]{\tiny\nx}}}% \multido{\ny=1+1}{#2}{\pgfputat{\pgfxy(-0.2,\ny)}{\pgfbox[right,center]{\tiny\ny}}}% \end{pgfscope}% } % Draw a grid to aid TikZ picture drawing/debugging. \newcommand{\DrawGridTikZ}[2]{% \begin{scope}[color=lightgray] \draw[thin,step=1mm] (0.0,0.0) grid (#1,#2);% \draw[thick,step=1cm] (-0.1,-0.1) grid (#1+0.1,#2+0.1);% \pgftext[top,at={\pgfxy(0.0,-0.2)}]{\tiny 0}% \pgftext[right,at={\pgfxy(-0.2,0.0)}]{\tiny 0}% \foreach \x in {1,...,#1} {\pgftext[top,at={\pgfxy(\x,-0.2)}]{\tiny\x}}% \foreach \y in {1,...,#2} {\pgftext[right,at={\pgfxy(-0.2,\y)}]{\tiny\y}}% \end{scope} } % For numbered notes, add note number references to the slides when generating notes. \ifbeamer@notes \newcounter{noteitem}[page] \newcommand<>{\noteitem}[1]{\only#2{\refstepcounter{noteitem}\unskip\ \fbox{\textbf{\scriptsize\thenoteitem}}\note[item]{#1}}} \else \newcommand<>{\noteitem}[1]{\only#2{\note[item]{#1}}} \fi % Sometimes we want to put a comment in tiny text on the next line, but the default line skip % will insert too much vertical space. Put a \tinyskip at the end of the line instead. \def\tinyskip{\\[-0.33\baselineskip]} % Increase item separation of level 1 list items. Can't use enumitem because it breaks beamer lists :(. % See: <https://tex.stackexchange.com/a/31524> \makeatletter \patchcmd{\@listI}{\itemsep3\p@}{\itemsep6\p@}{}{} \makeatother \endinput \def\filedate{17 May 2019} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % Document class for lecture slides. % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % Version History % v1.0 Initial version % v1.0.1 Removed obsolete pgfarrows package. % v1.0.2 Changed package loading order to ensure that hyperref is last. % v1.0.3 Tweaked formatting of teaching period output on title page. % Moved in some useful miscellaneous macros. % v1.1 Added nochapters option. % v1.2 Added TikZ package and grid macro, and deprecated PGF. % v1.3 Added support for configurable class types. % v1.3.1 Fixed regression that eliminated paper title from title page. % v1.3.2 Added text highlighting and \alertbf macros. % v1.3.3 Corrected trailing spacing of \highlight. % v1.3.4 Added hack to increase itemsep of top-level list items. % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \NeedsTeXFormat{LaTeX2e}[2001/06/01] \ProvidesClass{lectureslides}% [2019/05/17 INFO lecture slides style, v.1.3.4] % "Stream of conciousness" chapters vs. explicit individual classes. NOTE: % you can't have both chapters and classes! This is because we use the same % chapter macros for both cases, but they're applied differently (e.g., if % nochapters is set, then \insertchapternumber represent the class number). \newif\if@chapters \@chapterstrue \DeclareOption{nochapters}{\@chaptersfalse} \DeclareOption{\PassOptionsToClass{\CurrentOption}{beamer}} \ProcessOptions \LoadClass{beamer} % Load required packages. \RequirePackage{tikz} \RequirePackage{pgf} % DEPRECATED: only included for backwards compatibility \RequirePackage{ulem} \RequirePackage{pifont} \RequirePackage{xr} \RequirePackage{multido} % DO NOT REMOVE THE NEXT LINE! The lecturecommon package loads a bunch % of other packages, some of which are referenced below. \RequirePackage{lecturecommon} % Package initialisation. % Beamer setup. \mode<presentation> { \usetheme{OtagoPlain} \setbeamertemplate{navigation symbols}{} } \if@chapters \SetClassType{Chapter} \fi % hyperref setup. We have to use a slightly convoluted method, because the % macros referenced here haven't been set yet. Define the hyperref setup % as a new macro, and call this AFTER initialising the paper and chapter % variables. \newcommand{\inithyperref}{% \hypersetup{% pdftitle={\PaperCode\ \ClassType\ \thechapter\ Slides},% pdfsubject={\ShortClassTitle},% colorlinks=false% }% } % B-I-G braces {} with a text label % % Arguments: [#1] height of brace; if missing, defaults to the height of the label box % {#2} width of box for label % {#3} the text of the label % % TODO: This could possibly be refactored into a single macro with a l/r argument? \newcommand{\BIGL}[3][]{% \( \left\}% \ifx&#1&\else\parbox[c][#1]{0cm}{}\right.\fi% \begin{minipage}{#2}\flushleft\mbox{}#3\end{minipage}% \ifx&#1&\right.\fi% \)% } \newcommand{\BIGR}[3][]{% \( \ifx&#1&\left.\fi% \begin{minipage}{#2}\flushright\mbox{}#3\end{minipage}% \ifx&#1&\else\left.\parbox[c][#1]{0cm}{}\fi% \right\{% \)% } % Bold-face text using the structure or alert colour. \newcommand<>{\structurebf}[1]{\structure#2{\textbf{#1}}} \newcommand<>{\alertbf}[1]{\alert#2{\textbf{#1}}} % Define the standard beamer colours as actual colours, as we use them % in \color and \textcolor rather a lot. \usebeamercolor[fg]{structure}\colorlet{beamerstructure}{fg} \usebeamercolor[fg]{alerted text}\colorlet{beameralert}{fg} % Beamer-aware strikeout. \newcommand<>{\strikeout}[1]{\alt#2{\sout{#1}}{#1}} % Coloured highlighting of text (via Mark George). % \vphantom gives correct ascender and descender height for box. \newcommand{\highlight}[2][yellow!75]{\setlength{\fboxsep}{1pt}\hskip-1pt\colorbox{#1}{\vphantom{dy}#2}\hskip-1pt} % Uses the same spacing as \highlight, but does no highlighting. Use on the % original code when using incremental highlighting. \newcommand{\nohighlight}[1]{\highlight[white!0]{#1}} \newcommand{\error}[1]{\highlight[red!75]{#1}} % Document setup. \author{} \if@chapters \title{\PaperCode} \else \title{\PaperCode \\ \PaperTitle} \fi \subtitle{\ClassType\ \insertchapternumber: \ClassTitle} \institute{Department of \DepartmentName} \date{\TeachingPeriod, \YearOffered} % Some useful miscellaneous macros. % Create an "invisible" cell in a table for consistent spacing purposes. % It does so by taking the width of the supplied text and generating an % empty box 1pt wider. \newcommand{\InvisibleCell}[2]{% \multicolumn{1}{#1}{\makebox[\widthof{#2} + 1pt]{}}% } % Draw a grid to aid PGF picture drawing/debugging. % DEPRECATED: Use \DrawGridTikZ instead. \newcommand{\DrawGrid}[2]{% \begin{pgfscope}% \color{lightgray}% \pgfsetlinewidth{0.5pt}% \pgfpathgrid[step={\pgfxy(0.2,0.2)}]{\pgfxy(0,0)}{\pgfxy(#1,#2)}% \pgfusepath{stroke}% \pgfsetlinewidth{1pt}% \pgfpathgrid[step={\pgfxy(1,1)}]{\pgfxy(-0.1,-0.1)}{\pgfxy(#1+0.1,#2+0.1)}% \pgfusepath{stroke}% \pgfputat{\pgfxy(0,-0.2)}{\pgfbox[center,top]{\tiny 0}}% \pgfputat{\pgfxy(-0.2,0)}{\pgfbox[right,center]{\tiny 0}}% \multido{\nx=1+1}{#1}{\pgfputat{\pgfxy(\nx,-0.2)}{\pgfbox[center,top]{\tiny\nx}}}% \multido{\ny=1+1}{#2}{\pgfputat{\pgfxy(-0.2,\ny)}{\pgfbox[right,center]{\tiny\ny}}}% \end{pgfscope}% } % Draw a grid to aid TikZ picture drawing/debugging. \newcommand{\DrawGridTikZ}[2]{% \begin{scope}[color=lightgray] \draw[thin,step=1mm] (0.0,0.0) grid (#1,#2);% \draw[thick,step=1cm] (-0.1,-0.1) grid (#1+0.1,#2+0.1);% \pgftext[top,at={\pgfxy(0.0,-0.2)}]{\tiny 0}% \pgftext[right,at={\pgfxy(-0.2,0.0)}]{\tiny 0}% \foreach \x in {1,...,#1} {\pgftext[top,at={\pgfxy(\x,-0.2)}]{\tiny\x}}% \foreach \y in {1,...,#2} {\pgftext[right,at={\pgfxy(-0.2,\y)}]{\tiny\y}}% \end{scope} } % For numbered notes, add note number references to the slides when generating notes. \ifbeamer@notes \newcounter{noteitem}[page] \newcommand<>{\noteitem}[1]{\only#2{\refstepcounter{noteitem}\unskip\ \fbox{\textbf{\scriptsize\thenoteitem}}\note[item]{#1}}} \else \newcommand<>{\noteitem}[1]{\only#2{\note[item]{#1}}} \fi % Sometimes we want to put a comment in tiny text on the next line, but the default line skip % will insert too much vertical space. Put a \tinyskip at the end of the line instead. \def\tinyskip{\\[-0.33\baselineskip]} % Increase item separation of level 1 list items. Can't use enumitem because it breaks beamer lists :(. % See: <https://tex.stackexchange.com/a/31524> \makeatletter \patchcmd{\@listI}{\itemsep3\p@}{\itemsep6\p@}{}{} \makeatother \endinput

Ignore Space Show notes View

lectures/lectureslides.cls

\def\filedate{16 July 2020}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Document class for lecture slides.
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Version History
% v1.0   Initial version
% v1.0.1 Removed obsolete pgfarrows package.
% v1.0.2 Changed package loading order to ensure that hyperref is last.
% v1.0.3 Tweaked formatting of teaching period output on title page.
%        Moved in some useful miscellaneous macros.
% v1.1   Added nochapters option.
% v1.2   Added TikZ package and grid macro, and deprecated PGF.
% v1.3   Added support for configurable class types.
% v1.3.1 Fixed regression that eliminated paper title from title page.
% v1.3.2 Added text highlighting and \alertbf macros.
% v1.3.3 Corrected trailing spacing of \highlight.
% v1.3.4 Added hack to increase itemsep of top-level list items.
% v1.3.5 Added normalem option to ulem package.
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\NeedsTeXFormat{LaTeX2e}[2001/06/01]
\ProvidesClass{lectureslides}%
         [2020/07/16 INFO lecture slides style, v.1.3.5]

% "Stream of conciousness" chapters vs. explicit individual classes. NOTE:
% you can't have both chapters and classes! This is because we use the same
% chapter macros for both cases, but they're applied differently (e.g., if
% nochapters is set, then \insertchapternumber represent the class number).
\newif\if@chapters \@chapterstrue
\DeclareOption{nochapters}{\@chaptersfalse}

\DeclareOption*{\PassOptionsToClass{\CurrentOption}{beamer}}
\ProcessOptions
\LoadClass{beamer}

% Load required packages.
\RequirePackage{tikz}
\RequirePackage{pgf} % DEPRECATED: only included for backwards compatibility
\RequirePackage[normalem]{ulem}
\RequirePackage{pifont}
\RequirePackage{xr}
\RequirePackage{multido}
% DO NOT REMOVE THE NEXT LINE! The lecturecommon package loads a bunch
% of other packages, some of which are referenced below.
\RequirePackage{lecturecommon}

% Package initialisation.

% Beamer setup.
\mode<presentation>
{
	\usetheme{OtagoPlain}
	\setbeamertemplate{navigation symbols}{}
}

\if@chapters
    \SetClassType{Chapter}
\fi

% hyperref setup. We have to use a slightly convoluted method, because the
% macros referenced here haven't been set yet. Define the hyperref setup
% as a new macro, and call this AFTER initialising the paper and chapter
% variables.
\newcommand{\inithyperref}{%
    \hypersetup{%
        pdftitle={\PaperCode\ \ClassType\ \thechapter\ Slides},%
        pdfsubject={\ShortClassTitle},%
        colorlinks=false%
    }%
}

% B-I-G braces {} with a text label
%
% Arguments: [#1] height of brace; if missing, defaults to the height of the label box
%            {#2} width of box for label
%            {#3} the text of the label
%
% TODO: This could possibly be refactored into a single macro with a l/r argument?
\newcommand{\BIGL}[3][]{%
    \( \left\}%
       \ifx&#1&\else\parbox[c][#1]{0cm}{}\right.\fi%
       \begin{minipage}{#2}\flushleft\mbox{}#3\end{minipage}%
       \ifx&#1&\right.\fi%
    \)%
}
\newcommand{\BIGR}[3][]{%
    \( \ifx&#1&\left.\fi%
       \begin{minipage}{#2}\flushright\mbox{}#3\end{minipage}%
       \ifx&#1&\else\left.\parbox[c][#1]{0cm}{}\fi%
       \right\{%
    \)%
}

% Bold-face text using the structure or alert colour.
\newcommand<>{\structurebf}[1]{\structure#2{\textbf{#1}}}
\newcommand<>{\alertbf}[1]{\alert#2{\textbf{#1}}}

% Define the standard beamer colours as actual colours, as we use them
% in \color and \textcolor rather a lot.
\usebeamercolor*[fg]{structure}\colorlet{beamerstructure}{fg}
\usebeamercolor*[fg]{alerted text}\colorlet{beameralert}{fg}

% Beamer-aware strikeout.
\newcommand<>{\strikeout}[1]{\alt#2{\sout{#1}}{#1}}

% Coloured highlighting of text (via Mark George).
% \vphantom gives correct ascender and descender height for box.
\newcommand{\highlight}[2][yellow!75]{\setlength{\fboxsep}{1pt}\hskip-1pt\colorbox{#1}{\vphantom{dy}#2}\hskip-1pt}

% Uses the same spacing as \highlight, but does no highlighting.  Use on the
% original code when using incremental highlighting.
\newcommand{\nohighlight}[1]{\highlight[white!0]{#1}}

\newcommand{\error}[1]{\highlight[red!75]{#1}}

% Document setup.
\author{}
\if@chapters
    \title{\PaperCode}
\else
    \title{\PaperCode \\ \PaperTitle}
\fi
\subtitle{\ClassType\ \insertchapternumber: \ClassTitle}
\institute{Department of \DepartmentName}
\date{\TeachingPeriod, \YearOffered}

% Some useful miscellaneous macros.

% Create an "invisible" cell in a table for consistent spacing purposes.
% It does so by taking the width of the supplied text and generating an
% empty box 1pt wider.
\newcommand{\InvisibleCell}[2]{%
	\multicolumn{1}{#1}{\makebox[\widthof{#2} + 1pt]{}}%
}

% Draw a grid to aid PGF picture drawing/debugging.
% DEPRECATED: Use \DrawGridTikZ instead.
\newcommand{\DrawGrid}[2]{%
	\begin{pgfscope}%
		\color{lightgray}%
		\pgfsetlinewidth{0.5pt}%
		\pgfpathgrid[step={\pgfxy(0.2,0.2)}]{\pgfxy(0,0)}{\pgfxy(#1,#2)}%
		\pgfusepath{stroke}%
		\pgfsetlinewidth{1pt}%
		\pgfpathgrid[step={\pgfxy(1,1)}]{\pgfxy(-0.1,-0.1)}{\pgfxy(#1+0.1,#2+0.1)}%
		\pgfusepath{stroke}%
		\pgfputat{\pgfxy(0,-0.2)}{\pgfbox[center,top]{\tiny 0}}%
		\pgfputat{\pgfxy(-0.2,0)}{\pgfbox[right,center]{\tiny 0}}%
		\multido{\nx=1+1}{#1}{\pgfputat{\pgfxy(\nx,-0.2)}{\pgfbox[center,top]{\tiny\nx}}}%
		\multido{\ny=1+1}{#2}{\pgfputat{\pgfxy(-0.2,\ny)}{\pgfbox[right,center]{\tiny\ny}}}%
	\end{pgfscope}%
}

% Draw a grid to aid TikZ picture drawing/debugging.
\newcommand{\DrawGridTikZ}[2]{%
	\begin{scope}[color=lightgray]
		\draw[thin,step=1mm]  (0.0,0.0)   grid (#1,#2);%
		\draw[thick,step=1cm] (-0.1,-0.1) grid (#1+0.1,#2+0.1);%
		\pgftext[top,at={\pgfxy(0.0,-0.2)}]{\tiny 0}%
		\pgftext[right,at={\pgfxy(-0.2,0.0)}]{\tiny 0}%
		\foreach \x in {1,...,#1} {\pgftext[top,at={\pgfxy(\x,-0.2)}]{\tiny\x}}%
		\foreach \y in {1,...,#2} {\pgftext[right,at={\pgfxy(-0.2,\y)}]{\tiny\y}}%
	\end{scope}
}

% For numbered notes, add note number references to the slides when generating notes.
\ifbeamer@notes
    \newcounter{noteitem}[page]
    \newcommand<>{\noteitem}[1]{\only#2{\refstepcounter{noteitem}\unskip\ \fbox{\textbf{\scriptsize\thenoteitem}}\note[item]{#1}}}
\else
    \newcommand<>{\noteitem}[1]{\only#2{\note[item]{#1}}}
\fi

% Sometimes we want to put a comment in tiny text on the next line, but the default line skip
% will insert too much vertical space. Put a \tinyskip at the end of the line instead.
\def\tinyskip{\\[-0.33\baselineskip]}

% Increase item separation of level 1 list items. Can't use enumitem because it breaks beamer lists :(.
% See: <https://tex.stackexchange.com/a/31524>
\makeatletter
\patchcmd{\@listI}{\itemsep3\p@}{\itemsep6\p@}{}{}
\makeatother

\endinput

\def\filedate{17 May 2019}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Document class for lecture slides.
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Version History
% v1.0   Initial version
% v1.0.1 Removed obsolete pgfarrows package.
% v1.0.2 Changed package loading order to ensure that hyperref is last.
% v1.0.3 Tweaked formatting of teaching period output on title page.
%        Moved in some useful miscellaneous macros.
% v1.1   Added nochapters option.
% v1.2   Added TikZ package and grid macro, and deprecated PGF.
% v1.3   Added support for configurable class types.
% v1.3.1 Fixed regression that eliminated paper title from title page.
% v1.3.2 Added text highlighting and \alertbf macros.
% v1.3.3 Corrected trailing spacing of \highlight.
% v1.3.4 Added hack to increase itemsep of top-level list items.
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\NeedsTeXFormat{LaTeX2e}[2001/06/01]
\ProvidesClass{lectureslides}%
         [2019/05/17 INFO lecture slides style, v.1.3.4]