common-header.input

% Cornell CS 2043: Unix Tools and Scripting
% Spring 2016
%
% http://cs2043-sp16.github.io/
%
% This file is to be included for various packages and commands to be declared, without having to copy-paste
% all of them.  This may eventually turn into a .sty, it may not.  Example usage:
%
%     In file lecture01/lecture01.tex:
%         \include{../common.tex}
%
% This file is neither a style file, nor is a document class.  It's just me being lazy and not wanting to have
% to write all of these every time, but still being able to modify them when I find a new package I want
% to use.  Though arguably terrible form, this is TeX after all...it was never pretty.

%
% Initial theme setup
%
\documentclass[11pt]{beamer}
\usetheme{metropolis}
\metroset{background=dark} % easier on the eyes, in my opinion
\setbeamertemplate{bibliography item}{\insertbiblabel}

%
% The Fira Sans mono font is a little too fancy...the ampersands and various other mono-spaced fonts of \ttfamily
% inputs are borderline insulting.
%
% The desire here is to have absolutely no fancy anything with \ttfamily environments such as \texttt{} and
% \begin{minted} ... \end{minted} so that the text will copy-paste directly from the pdf to the terminal.
%
%     Getting DejaVu Mono:     http://tex.stackexchange.com/a/84818
%     No modifications at all: http://tex.stackexchange.com/a/103242
%
\usepackage{fontspec}
\setmonofont[
  Extension      = .ttf ,
  Ligatures      = {NoCommon, NoRequired, NoContextual, NoHistoric, NoDiscretionary},
  UprightFont    = * ,
  ItalicFont     = *-Oblique ,
  BoldFont       = *-Bold ,
  BoldItalicFont = *-BoldOblique
]{DejaVuSansMono}

%
% Linking
%
\usepackage{hyperref}

%
% Nicer tables
%
\usepackage{booktabs}
\usepackage[scale=2]{ccicons}

% Finer control over enumerations
% example:
%   \begin{enumerate}[(1)]
%     \item first
%     \item second
%     \item ...
%   \end{enumerate}
%
%   and also
%
%   \begin{enumerate}[a)]
%   \begin{enumerate}[i.]
%   \begin{enumerate}[$\mathbb{R}$\textsuperscript{\arabic{enumi}}]
%
% and so on
\usepackage{enumerate}

% Many people online prefer the enumitem package, but it causes a lot of issues with
% beamer.  I do not want to change where bullets show up (margin-wise) for the *entire*
% document, but I do want the ability to "de-indent" bullets on a slide selectively.
%
% Grab the appropriate length: http://tex.stackexchange.com/a/103257
\newlength\origLeftMarginI
\setlength\origLeftMarginI\leftmargini
\def\gobbledItems{\setlength{\leftmargini}{0em}}
\def\restoreItems{\setlength{\leftmargini}{\origLeftMarginI}}
%
% Define a new itemize. I called it leftemize because I am lazy and want to be able to
% keep my item+tab sublime glory, and changing itemize to leftemize is just a short
% ctrl+d and arrow away. The 1 as input allows for [<+- | alert@+>] on a leftemize.
\newenvironment{leftemize}[1][]{
  \gobbledItems
  \begin{itemize}[#1]
}{
  \end{itemize}
  \restoreItems
}

%
% Sultry code listings
%
\usepackage{minted}
\BeforeBeginEnvironment{minted}{\begin{block}{}} % These surround minted code with beamer blocks
\AfterEndEnvironment{minted}{\end{block}}        % to accentuate them
\usemintedstyle{monokai}

%
% Colors thanks to various themes from Monokai: http://www.colourlovers.com/lover/Monokai
%
\definecolor{make-it-concrete}{rgb}{0.670588, 0.666667, 0.596078}      % (171, 170, 152) / 255
\definecolor{cheap-carpet}{rgb}{0.145098, 0.196078, 0.200000}% (37,50,51) / 255
\definecolor{hairball}{rgb}{0.403922, 0.411765, 0.380392}% (103,105,97) / 255

%
% General slide coloring
%
\setbeamercolor{frametitle}{% adjusts too-white colors from beamer-metropolis
  bg=hairball!66,
  fg=cheap-carpet
}
\setbeamercolor{normal text}{
  bg=mDarkTeal,   % note: defined by beamer-metropolis
  fg=hairball!44
}

%
% Beamer-block shaping and colors
%
\setbeamertemplate{blocks}[rounded]
\setbeamercolor{block title}{
  bg=make-it-concrete!66,
  fg=cheap-carpet
}
\setbeamercolor{block body}{
  bg=cheap-carpet,
  fg=make-it-concrete!66
}

%
% Custom commands
%
\newcommand{\colbf}[1]{\textcolor{mLightBrown!77!black}{#1}}% bold with color; mLightBrown defined by beamer-metropolis
\newcommand{\tsub}{\textsubscript}                          % more compact
\newcommand{\tsup}{\textsuperscript}                        % " " " " " "
\def\wl{\par \vspace{\baselineskip}}                        % force newline; MANY thanks:
                                                            %   https://groups.google.com/d/msg/comp.text.tex/abxw5nTALzg/puXHnyx6pM8J