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%% This is file `tudarules.sty' version 3.20 (2021/10/12),
%% it is part of
%% TUDa-CI -- Corporate Design for TU Darmstadt
%% ----------------------------------------------------------------------------
%%
%%  Copyright (C) 2018--2021 by Marei Peischl <marei@peitex.de>
%%
%% ============================================================================
%% This work may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%% The latest version of this license is in
%% http://www.latex-project.org/lppl.txt
%% and version 1.3c or later is part of all distributions of LaTeX
%% version 2008/05/04 or later.
%%
%% This work has the LPPL maintenance status `maintained'.
%%
%% The Current Maintainers of this work are
%%   Marei Peischl <tuda-ci@peitex.de>
%%   Markus Lazanowski <latex@ce.tu-darmstadt.de>
%%
%% The development respository can be found at
%% https://github.com/tudace/tuda_latex_templates
%% Please use the issue tracker for feedback!
%%
%% ============================================================================
%%
\def\fileversion{3.20}
\def\filedate{2021/10/12}
\NeedsTeXFormat{LaTeX2e}
\RequirePackage{expl3}
\ProvidesExplPackage{tudarules}{\filedate}{\fileversion}{Creation of colored bars for tuda-ci bundle}


\RequirePackage{l3keys2e}

\str_if_exist:NF \g_ptxcd_department_str {
	\str_new:N \g_ptxcd_department_str
	\str_gset:Nn \g_ptxcd_department_str {default}
}

\bool_new:N \g_ptxcd_simple_rules_bool
\dim_new:N \g_ptxcd_titlerule_dim

\seq_if_exist:NF \l_ptxcd_tmpa_seq {\seq_new:N \l_ptxcd_tmpa_seq}
\tl_if_exist:NF \l_ptxcd_tmpa_tk {\tl_new:N \l_ptxcd_tmpa_tl}

\cs_new:Nn \ptxcd_rules_set_values:n {
	\seq_set_split:Nnn \l_ptxcd_tmpa_seq {|} {#1}

	\int_step_inline:nnnn {1}  {1} {4} {
		\tl_set:Nn \l_ptxcd_tmpa_tl {c_ptxcd_
			\clist_item:nn {largerule, rulesep, smallrule, logoheight} {##1}
			_dim}
		\dim_if_exist:cF {\l_ptxcd_tmpa_tl} {\dim_new:c {\l_ptxcd_tmpa_tl}}
		\dim_gset:cn {\l_ptxcd_tmpa_tl} {\seq_item:Nn \l_ptxcd_tmpa_seq {##1}}
	}
	\dim_gset:Nn \g_ptxcd_titlerule_dim {.5\c_ptxcd_smallrule_dim}
}

\keys_define:nn {ptxcd/rules} {
	color .tl_gset:N = \g_ptxcd_rules_color_tl,
	blackrule .meta:n = {color=black},
	paper .choice:,
	paper/dl .code:n = { \ptxcd_rules_set_values:n  { 3.5mm | 1.4mm | 1.2pt | 17  mm | 0.6pt| 10mm | 14mm}},
	paper/a6 .code:n = { \ptxcd_rules_set_values:n  { 3  mm | 1.4mm | 1.2pt | 16.5mm | 0.6pt| 10mm | 15mm}},
	paper/a5 .code:n = { \ptxcd_rules_set_values:n { 3.3mm | 1.4mm | 1.2pt | 19  mm | 0.6pt| 12mm | 16mm}},
	paper/a4 .code:n = { \ptxcd_rules_set_values:n  { 4  mm | 1.4mm | 1.2pt | 22  mm | 0.6pt| 15mm | 20mm}},
	paper/a3 .code:n = { \ptxcd_rules_set_values:n  { 4.5mm | 1.4mm | 1.2pt | 24.5mm | 0.6pt| 15mm | 20mm}},
	paper/a2 .code:n = { \ptxcd_rules_set_values:n  { 8  mm | 2.5mm | 2.2pt | 44.5mm | 1.1pt| 30mm | 35mm}},
	paper/a1 .code:n = { \ptxcd_rules_set_values:n { 10 mm | 3.0mm | 2.8pt | 55.5mm | 1.4pt| 30mm | 35mm}},
	paper/a0 .code:n = { \ptxcd_rules_set_values:n  { 16 mm | 5.2mm | 4.8pt | 80  mm | 2.4pt| 30mm | 35mm}},
	paper/slide .code:n = { \ptxcd_rules_set_values:n  { 2mm | .7mm | .6pt | 11 mm | .3pt| 7.5mm | 10mm}},
	paper/beamer .meta:n = {paper= slide},
	paper/leaflet .meta:n = {paper=a5},
	color .tl_gset:N = \g_ptxcd_rules_default_color_tl,
	color .initial:n = black,
	mode .tl_gset:N = \g_ptxcd_rules_default_mode_tl,
	mode .initial:n = box,
	department .choice:,
	department / default .code:n = \str_gset:Nn \g_ptxcd_department_str {default},
	department / mecheng .code:n = \str_gset:Nn \g_ptxcd_department_str {mecheng},
	department / unknown .code:n = {
		\str_gset:Nx \g_ptxcd_department_str {\l_keys_value_tl}
	},
	department .initial:V = \g_ptxcd_department_str,
	mecheng .meta:n = {department=mecheng},
}

\ProcessKeysOptions{ptxcd/rules}

\RequirePackage{tudacolors}
\RequirePackage{xparse}

%Switch between TikZ and box mode
\bool_new:N  \g_ptxcd_rule_TikZmode_bool

\keys_define:nn {ptxcd/rules} {
	width .dim_gset:N = \l_ptxcd_headrule_width_dim,
	color .tl_gset:N = \l_ptxcd_headrule_color_tl,
	mode .choice:,
	mode / box .code:n = \bool_gset_false:N \g_ptxcd_rule_TikZmode_bool,
	mode / tikz .code:n = \bool_gset_true:N \g_ptxcd_rule_TikZmode_bool,
	mode / TikZ  .code:n = \bool_gset_true:N \g_ptxcd_rule_TikZmode_bool,
}


\cs_if_exist_use:NF \str_case:Vn \str_case:on
	\g_ptxcd_department_str {
	{mecheng} {\bool_gset_true:N \g_ptxcd_simple_rules_bool}
}

\NewDocumentCommand{\ptxcd_makeheadrule}{som}{
	\keys_set:nn {ptxcd/rules} {
		%TODO maybe package options for default
		width=\textwidth,
	}
	\exp_args:Nnx \keys_set:nn {ptxcd/rules} {
		mode= \g_ptxcd_rules_default_mode_tl,
		color=  \g_ptxcd_rules_default_color_tl
	}
	\IfNoValueF {#2} {\keys_set:nn {ptxcd/rules}{#2}}
	\IfBooleanF {#1} {\box_if_exist:cF {#3_box} {\box_new:c {#3_box}}}
	\bool_if:NTF \g_ptxcd_simple_rules_bool {
		\IfBooleanTF {#1} \use_none:n \hbox_gset:cn
			{#3_box} 
			{
				\color{\l_ptxcd_headrule_color_tl}
				\raisebox{-\height}{\rule{\l_ptxcd_headrule_width_dim}{.5\c_ptxcd_largerule_dim}}
			}
	}{
		\bool_if:NTF \g_ptxcd_rule_TikZmode_bool {
			\IfBooleanTF {#1} \use_none:n \hbox_gset:cn
				{#3_box} {
				\begin{tikzpicture}
					\fill[\l_ptxcd_headrule_color_tl](0,\c_ptxcd_rulesep_dim)rectangle++(\l_ptxcd_headrule_width_dim,\c_ptxcd_largerule_dim);
					\fill(0,0)rectangle(\l_ptxcd_headrule_width_dim,-\c_ptxcd_smallrule_dim);
				\end{tikzpicture}
			}
		}{
			\IfBooleanTF {#1} \use_none:n \hbox_gset:cn
			{#3_box} 
			{
				\parbox[t]{\l_ptxcd_headrule_width_dim}{
					\setlength{\baselineskip}{\z@}
					\null\par\nointerlineskip
					\textcolor{\l_ptxcd_headrule_color_tl}{\rule{\linewidth}{\c_ptxcd_largerule_dim}}
					\vspace{\c_ptxcd_rulesep_dim}\par\nointerlineskip
					\rule{\linewidth}{\c_ptxcd_smallrule_dim}
				}
			}
		}
	}
	\IfBooleanF {#1} {\cs_set:cpn {#3} {\box_use:c {#3_box}}}
}

\NewDocumentCommand{\ptxcd_makefootrule}{som}{
	\keys_set:nn {ptxcd/rules} {
		width= \textwidth
	}
	\IfNoValueF {#2} {\keys_set:nn {ptxcd/rules}{#2}}
	\IfBooleanF {#1} {\box_new:c {#3_box}}
    \IfBooleanTF {#1} \use_none:n \hbox_gset:cn {#3_box} {
		\raisebox{-\height}{\rule{\l_ptxcd_headrule_width_dim}{\g_ptxcd_titlerule_dim}}
	}
	\IfBooleanF{#1} {\cs_new:cpn {#3} {\box_use:c {#3_box}}}
}

\endinput