%% hgb.sty
%% This file is part of the Hagenberg Thesis package for creating bachelors's and masters's theses
%% Author: Wilhelm Burger (wilbur@ieee.org)
%% GitHub: https://github.com/Digital-Media/HagenbergThesis
%% File encoding: ASCII

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{hgb}[2023/02/13]%%AUTO
\typeout{******************* hgb.sty  (options=\@nameuse{opt@hgb.sty}) ***********************}

% Create a default/fallback main language so it is set no matter what
\providecommand{\hgb@MainLanguage}{german}

\RequirePackage{xifthen}

\newboolean{hgb@SmartQuotesOn}
\setboolean{hgb@SmartQuotesOn}{false}	% smart quotes are turned off by default

\newboolean{hgb@noUpdateCheck}
\setboolean{hgb@noUpdateCheck}{false}	% update check is perfomed by default

% Handle package options passed from the class file
\DeclareOption{english}{\renewcommand{\hgb@MainLanguage}{english}}
\DeclareOption{german}{\renewcommand{\hgb@MainLanguage}{german}}
\DeclareOption{ngerman}{\renewcommand{\hgb@MainLanguage}{german}}
\DeclareOption{smartquotes}{\setboolean{hgb@SmartQuotesOn}{true}}
\DeclareOption{noUpdateCheck}{\setboolean{hgb@noUpdateCheck}{true}}
\DeclareOption*{\ClassWarning{hgb}{Unknown option '\CurrentOption'.}}
\ProcessOptions*

%% Required Packages ----------------------------------------------------------


\RequirePackage{lmodern}				% use Latin Modern Fonts
\RequirePackage{cmap}						% make generated PDF files "searchable and copyable"
\RequirePackage[utf8]{inputenc}
\RequirePackage[T1]{fontenc}		% T1 font encoding for improved hyphenation

% Set main language by selectively loading babel with the 'main' parameter (babel 3.9+)
\ifthenelse{\equal{\hgb@MainLanguage}{german}}%
	{\RequirePackage[english,main=ngerman]{babel}}{}
\ifthenelse{\equal{\hgb@MainLanguage}{english}}%
	{\RequirePackage[main=english,ngerman]{babel}}{}

%% Setup for smart quotes (csquotes package) -- experimental! ----------------------------------
	
\ifthenelse{\boolean{hgb@SmartQuotesOn}}{
	\languageshorthands{none}%			%% turn off babel's shorthands (permanently)
	\usepackage[autostyle=true,german=quotes]{csquotes}%
	\MakeOuterQuote{"}%
	\EnableQuotes}{}

%% Language environments ------------------------------------------------------

% Switch from German to English (babel)
\newenvironment{english}%
{\begin{otherlanguage}{english}%
	\ifthenelse{\boolean{hgb@SmartQuotesOn}}{\EnableQuotes}{}}%
{\end{otherlanguage}\ignorespacesafterend}% 

% Switch from English to German (babel)
\newenvironment{german}%
{\begin{otherlanguage}{ngerman}%
	\ifthenelse{\boolean{hgb@SmartQuotesOn}}{\EnableQuotes}{}}%
{\end{otherlanguage}}%


%% Date-related stuff ---------------------------------------------------------

\edef\hgbDate{\csname ver@hgb.sty\endcsname}	% get this package's build date

\RequirePackage{xstring}			% for string operations
\RequirePackage[english,ngerman,calc,useregional,showdow=false]{datetime2}	% replaces obsolete 'datetime' package

% https://tex.stackexchange.com/questions/316253/latex-convert-date-string-format-from-mm-dd-yyyyy-to-dd-mm-yyyy/316257#316257
\newcommand{\PackageToDTMdate}[2]{%	converts date in 'YYYY/MM/DD' format to DTMdate and saves to #2
    \StrLeft{#1}{4}[\myYear]%
    \StrRight{#1}{2}[\myDay]%
    \StrMid{#1}{6}{7}[\myMonth]%
		\DTMsavenoparsedate{#2}{\myYear}{\myMonth}{\myDay}{-1}%
    %\DTMdate{\myYear-\myMonth-\myDay}%
}

\PackageToDTMdate{\hgbDate}{hgbPackageDate}	% converts package date to DTM format: \DTMusedate{hgbPackageDate}
\DTMsavenoparsedate{hgbToday}{\the\year}{\the\month}{\the\day}{-1} % today's date in DTM format: \DTMusedate{hgbToday}

\newcounter{hgbAgeLimit}\setcounter{hgbAgeLimit}{365}	% warn if package is older than 1 year
\newcount\hgbAge
\DTMsaveddatediff{hgbToday}{hgbPackageDate}{\hgbAge}

\newcommand{\hgbWarnOldPackage}[1]{\PackageWarning{hagenberg-thesis}{%
^^J****************************************************************
^^JNOTE: 'hagenberg-thesis' is #1 days old - pls. check for updates 
^^Jat https://github.com/Digital-Media/HagenbergThesis
^^J****************************************************************
^^J} % https://tex.stackexchange.com/questions/6529/newline-linebreak-in-message
}

\ifthenelse{\hgbAge>\value{hgbAgeLimit} \AND \NOT \boolean{hgb@noUpdateCheck}}%
	{\hgbWarnOldPackage{\the\hgbAge}}{}


%% ------------------------------------------------------

\RequirePackage{upquote} 			% uses "right" quotes in the verbatim environment
\RequirePackage{eurosym}			% provides \euro - conflict with marvosym on \EUR!

\RequirePackage{graphicx}
\RequirePackage[percent]{overpic}	% to allow text/graphics overlays on pictures
\RequirePackage{pict2e}				% extends the LaTeX 'picture' environment		

\RequirePackage{xcolor}
\newcommand{\@MissingArg}[1]{\textcolor{red}{#1}}

\RequirePackage[T1,hyphens,obeyspaces,spaces,lowtilde]{url}
\urlstyle{sf}

\RequirePackage{verbatim}
\RequirePackage{moreverb}
\def\verbatimtabsize{2\relax}

\RequirePackage{ifpdf}
\ifpdf % LaTeX is in native PDF mode (pdflatex) 
  \RequirePackage{epstopdf}			% converting EPS to PDF for pdflatex
%  \pdfcompresslevel=0				% 0 = no compression, 9 = max. compression
%  \pdfimageresolution=300
\else								% LaTeX is in emulation mode (DVI-PS-PDF)
  \RequirePackage[hyphenbreaks]{breakurl} % allows line breaks in URLs without pdflatex (DIV, PS, PDF)
\fi	


%% hyperref Setup -------------------------------------------------------------

\RequirePackage[unicode]{hyperref}	% utf8-change
\hypersetup{
	linktocpage = true,				% make page number, not text, be link on TOC, LOF and LOT 
	colorlinks = false,				% don't uses colored links (because this shows up in printing!) 
	pdfborder = {0 0 0.5},			% use a thinner (0.5pt) border around all PDF links
	allbordercolors = {0 0 0.8},	% dark blue border for all types of links
	breaklinks = true				% allow links to break over lines by making links over multiple lines
}	%see https://www.tug.org/applications/hyperref/manual.html

% Redefine certain commands for bookmarks and meta-data
\let\oldand\and
\pdfstringdefDisableCommands{%
	\def\\{}%
	\def\url#1{<#1>}%
	\def\and{\texorpdfstring{\oldand}{, }}%
}

\RequirePackage[figure,table,table*]{hypcap}	% do not redefine figure* for use in article (without captions)

%% Miscellaneous Utility Commands ---------------------------------------------

\newcommand\trennstrich{%
  \nopagebreak[4]
  \vskip 1.5ex %
%  \nopagebreak[4]
  \noindent\makebox[\textwidth]{\rule{4cm}{0.4pt}}
  \vskip 2.5ex}

\newcommand{\SuperPar}[0]{%
\PackageWarning{hgb}{Due to frequent misuse, macro \protect\SuperPar\space has been removed.}
}

\newcommand{\email}[1]{%
\texorpdfstring{\href{mailto:#1}{\nolinkurl{#1}}}{<#1>}%
}

% Test box for print proofing
\newcommand{\calibrationbox}[2]{% parameters: #1=width, #2=height
	\setlength{\unitlength}{1.0mm}%
	\begin{picture}(#1,#2)%
	\linethickness{0.05mm}%
	\put(0,0){\dashbox{0.2}(#1,#2)%
	{\parbox{#1mm}{%
	\centering\footnotesize 
	width $ = #1 \textrm{mm}$\\
	height $ = #2 \textrm{mm}$
	}}}\end{picture}
}

% Test box for print proofing (obsolete - use \calibrationbox)
\newcommand{\Messbox}[2]{
	\calibrationbox{#1}{#2}
}

\newcommand{\ShowParameter}[1]{\the#1\showthe#1} % to display TeX parameters
%Beispiel: clubpenalty = \ShowParameter{\clubpenalty}


%% Layout Settings ------------------------------------------------------------

\frenchspacing						% creates normal spacing between sentences
\setlength{\parskip}{0pt plus 0.1pt}
\raggedbottom						%\flushbottom

\RequirePackage{float}
\floatstyle{plain}

% Captions with font size "small" and additional margin spacing
\RequirePackage[small,bf]{caption}
\DeclareCaptionStyle{ruled}{labelfont=bf,labelsep=colon} 
\setlength{\captionmargin}{5mm}
\setlength{\abovecaptionskip}{10pt}
\setlength{\belowcaptionskip}{10pt}

%% Disable \footnote in captions:
\newcommand{\@WarnFootnoteInCaption}{%
\GenericError{}{Package hgb Error: footnotes in captions are disabled}%
{How to fix: do not place footnotes in captions!}{}}%
\DeclareCaptionTextFormat{nofootnotes}{%
	\renewcommand{\footnote}[1]{\@WarnFootnoteInCaption\relax}#1}
\captionsetup{textformat=nofootnotes}


% Make float placement easier    
\renewcommand{\floatpagefraction}{.9}	% previously: .5
\renewcommand{\textfraction}{.1}		% previously: .2
\renewcommand{\topfraction}{.9}			% previously: .7
\renewcommand{\bottomfraction}{.7}		% previously: .3
\setcounter{topnumber}{3}				% previously: 2
\setcounter{bottomnumber}{2}			% previously: 1
\setcounter{totalnumber}{5}				% previously: 3

\RequirePackage{enumitem}				% fix excessive vertical spacing in lists
\setlist{%
	partopsep = .0ex plus .1ex, 
	topsep = .6ex plus .3ex, 
	itemsep = .0ex plus .1ex, 
	parsep = .4ex plus .2ex
}

\newenvironment{nowidows}%
	{\clubpenalty=10000%
	\widowpenalty=10000%
	\displaywidowpenalty=10000}%
	{}
%Example:
% \begin{nowidows}
% Any text where no widows are allowed
% \end{nowidows}

\RequirePackage{lengthconvert}	% for showing the current textwidth in mm


% Setup for Table of Contents (ToC)

%\RequirePackage[tocgraduated,tocbreaksstrict]{tocstyle}%		%% Note: tocstyle is unsupported!
%\usetocstyle{classic}%

\RequirePackage{tocbasic}%				%% tocbasic is part of koma script
\DeclareTOCStyleEntry[entryformat=\bfseries\textsf]{tocline}{chapter}%

%% Program environments  ----------------------------------------

% Define the program float environment:
\@ifundefined{chapter}%
   {\newfloat{program}{tbp}{lop}}%
	 {\newfloat{program}{tbp}{lop}[chapter]}

\floatstyle{plain}
\restylefloat*{program}
	
\ifthenelse{\equal{\bbl@main@language}{german} \or \equal{\bbl@main@language}{ngerman}}%
	{\floatname{program}{Programm}}{}%

\ifthenelse{\equal{\bbl@main@language}{english}}%
	{\floatname{program}{Program}}{}%

%% Experimental items ---------------------------------------------------------

\newenvironment{NarrowList}%
{\begin{list}{}%
{\setlength{\leftmargin}{2.5em}
 \setlength{\labelwidth}{1em}
 \setlength{\labelsep}{0.5em}
 \setlength{\itemsep}{0.5ex}
 \setlength{\parsep}{0ex}
 \setlength{\topsep}{0ex}
\raggedright
}}%
{\end{list}}

\providecommand{\hgb@PathName}{Pfad}

\newenvironment{FileList}[1]%
{%\paragraph{Pfad:} \url{#1}
\ifthenelse{\equal{\hgb@MainLanguage}{german}}
	{\renewcommand{\hgb@PathName}{Pfad}}%
	{\renewcommand{\hgb@PathName}{Path}}%
\paragraph{\hgb@PathName: \nolinkurl{#1}}
\begin{list}{}%
{\setlength{\leftmargin}{5cm}
 \setlength{\labelwidth}{4cm}
 \setlength{\labelsep}{0.25cm}
 \setlength{\rightmargin}{0cm}
 \setlength{\itemindent}{0cm}
 \setlength{\itemsep}{0.5ex}
 \setlength{\parsep}{0ex}
 \setlength{\topsep}{1ex}
\raggedright
}}%
{\end{list}}

\def\widedotfill{\leaders\hbox to 8pt{\hfil.\hfil}\hfill}

\newcommand{\fitem}[1]{%
\item[\nolinkurl{#1}\widedotfill]
}

% A generic environment that does nothing, e.g., for temporary variable settings:
% \begin{block}
% \setlength{\tabcolsep}{10pt}
%    \renewcommand{\arraystretch}{1.50}
%    ... 
% \end{block}
\newenvironment{block}{}{}

% Gives access to the most recent label assigned (used in longtable example):
\newcommand{\getcurrentlabel}{\@currentlabel}


%% For inserting foreign PDF pages --------------------------------------------

\RequirePackage{pdfpages}

%% Tables ---------------------------------------------------------------------

\RequirePackage{booktabs}
\RequirePackage{longtable}
\RequirePackage{multirow}


%% Prevent subfigure package from being loaded -------------------------------

% The subfigure package is DEPRECATED (see https://ctan.org/pkg/subfigure)!
% We strongly advise against its use since it creates poor output which is not 
% compatible with our quality standards. Loading this package is therefore blocked
% by default. We recommend to use the 'tabular' environment instead.

\AtBeginDocument{%
  \@ifpackageloaded{subfigure}{%
    \PackageError{hgb}{Use of the 'subfigure' package is not supported in this setup, because it is obsolete}{}
	\let\subfigure\undefined% just to make sure ...
  }%
}%

%% ----------------------------------------------------------------------------

\setlength{\fboxsep}{0mm}			%globally zero fbox separator