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%% hgbalgo.sty
%% Toward better looking algorithms ...
%% This package imports and pre-configures the 'algorithmicx'/'algorithmicpseudocode' packages
%% (see https://ctan.org/pkg/algorithmicx), fixes some problems and adds new functionality
%% and colors. It relies on the 'algorithm' package for typesetting float-type algorithms
%% with captions.
%% This file is part of the Hagenberg Thesis package for creating bachelors's and masters's theses
%% Author: Wilhelm Burger (wilhelm.burger@fh-hagenberg.at)
%% GitHub: https://github.com/Digital-Media/HagenbergThesis
%% File encoding: ASCII
\ProvidesPackage{hgbalgo}[2020/10/29]%%AUTO
\RequirePackage[]{algpseudocode} % imports algpseudocode + algorithmicx (use 'noend' to turn off 'end')
\RequirePackage{calc} % for numeric calculations
\RequirePackage{xcolor}
% Colors to be used in algorithms (can be redefined locally if desired)
%\definecolor{AlgKeywordColor}{named}{black}
%\definecolor{AlgProcedureColor}{named}{black}
%\definecolor{AlgCommentColor}{named}{black}
\definecolor{AlgKeywordColor}{rgb}{0.00, 0.00, 0.666} % = Dark Blue
\definecolor{AlgProcedureColor}{rgb}{0.00, 0.5, 0.20} % = Dark Green
\definecolor{AlgCommentColor}{gray}{0.40} % = Gray (40% black)
\algrenewcommand\algorithmicend{\textbf{\color{AlgKeywordColor}end}}
\algrenewcommand\algorithmicdo{\textbf{\color{AlgKeywordColor}do}}
\algrenewcommand\algorithmicwhile{\textbf{\color{AlgKeywordColor}while}}
\algrenewcommand\algorithmicfor{\textbf{\color{AlgKeywordColor}for}}
\algrenewcommand\algorithmicforall{\textbf{\color{AlgKeywordColor}for all}}
\algrenewcommand\algorithmicloop{\textbf{\color{AlgKeywordColor}loop}}
\algrenewcommand\algorithmicrepeat{\textbf{\color{AlgKeywordColor}repeat}}
\algrenewcommand\algorithmicuntil{\textbf{\color{AlgKeywordColor}until}}
\algrenewcommand\algorithmicprocedure{\textbf{\color{AlgKeywordColor}procedure}}
\algrenewcommand\algorithmicfunction{\textbf{\color{AlgKeywordColor}function}}
\algrenewcommand\algorithmicif{\textbf{\color{AlgKeywordColor}if}}
\algrenewcommand\algorithmicthen{\textbf{\color{AlgKeywordColor}then}}
\algrenewcommand\algorithmicelse{\textbf{\color{AlgKeywordColor}else}}
\algrenewcommand\algorithmicrequire{\textbf{\color{AlgKeywordColor}Require:}}
\algrenewcommand\algorithmicensure{\textbf{\color{AlgKeywordColor}Ensure:}}
\algrenewcommand\algorithmicreturn{\textbf{\color{AlgKeywordColor}return}}
\algrenewcommand\algorithmiccomment[1]{\hfill{\color{AlgCommentColor}\(\triangleright\) #1}}%
%% algpseudocode assumes that these keywords are non-empty:
%\algrenewcommand\algorithmicprocedure{} % no 'procedure' keyword
%\algrenewcommand\algorithmicfunction{} % no 'function' keyword
% Use SF font and color for procedure and function names:
\newcommand{\@AlgTextProc}[1]{\textcolor{AlgProcedureColor}{\textsf{#1}}}
\algrenewcommand\textproc{\@AlgTextProc}
% Redefinitions to remove wrong space when \algorithmicprocedure is empty.
% Inserts an empty () parameter list when no parameters are supplied:
\algdef{SE}[PROCEDURE]{Procedure}{EndProcedure}[2]{%
\ifthenelse{\equal{\algorithmicprocedure}{}}%
{}{\algorithmicprocedure\ }%
\textproc{#1}\hskip0.75pt(#2)}%
{\algorithmicend\ \algorithmicprocedure}%
\algdef{SE}[FUNCTION]{Function}{EndFunction}[2]{%
\ifthenelse{\equal{\algorithmicfunction}{}}%
{}{\algorithmicfunction\ }%
\textproc{#1}\hskip0.75pt(#2)}%
{\algorithmicend\ \algorithmicfunction}%
%\algrenewcommand\Call[2]{\textproc{#1}\ifthenelse{\equal{#2}{}}{}{(#2)}}%
\algrenewcommand\Call[2]{\textproc{#1}\hskip0.75pt(#2)}%
%% -----------------------------------------------------------------
\newlength{\@AlgTmpIndent}
%% New public macros:
% \StateLong{<text>} creates numbered statements like algorithmicx's \State command but
% provides consistent indentation on multi-line statements.
% Note that the statement text must be passed as an argument in {...} brackets
\newcommand*{\StateL}[1]{\State \parbox[t]{\linewidth-\ALG@thistlm}{#1\strut}}%
% \StateNN[<nesting>]{<text>} creates non-numbered statements like algorithmicx's \Statex
% command but provides consistent indentation inside nested constructs and over multiple lines.
% The optional integer argument [<nesting>] can be used to specify the nesting depth
% to counteract a bug in algorithmicx (nesting level is not set properly before the first \State
% command inside a nested construct.
\newcommand{\StateNN}[2][\numexpr\theALG@nested-1]{% default indentation = nesting - 1
\setlength\@AlgTmpIndent{\algorithmicindent*#1}% requires calc package
\Statex\hskip\@AlgTmpIndent\parbox[t]{\linewidth-\@AlgTmpIndent}{#2\strut}%
}%
% Macros for describing input and output of procedures and functions:
\algnewcommand\Input[1]{\StateNN[1]{\textbf{Input:} #1}}% use to describe input parameters: \Input{<description>}
\algnewcommand\Output[1]{\StateNN[1]{\textbf{Output:} #1}}% use to describe output values: \Output{<description>}
\algnewcommand\Returns[1]{\StateNN[1]{\textbf{Returns} #1}}% use to describe what a procedure/function returns: \Returns{<description}
% 'algorithm' creates a floating environment for algorithms: \begin{algorithm}...\end{algorithm}
\@ifundefined{chapter}%
{\RequirePackage[ruled]{algorithm}}%
{\RequirePackage[ruled,chapter]{algorithm}}
\ifthenelse{\equal{\bbl@main@language}{german} \or \equal{\bbl@main@language}{ngerman}}%
{\floatname{algorithm}{Algorithmus}}{}%
\ifthenelse{\equal{\bbl@main@language}{english}}%
{\floatname{algorithm}{Algorithm}}{}%
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