% pgfornament.sty (utf8 encoding)
% Copyright 2020  Alain Matthes
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either version 1.3
% 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 1.3 or later is part of all distributions of LaTeX
% version 2005/12/01 or later.
%
% This work has the LPPL maintenance status “maintained”.
% 
% The Current Maintainer of this work is Alain Matthes.
%---------%---------%---------%---------%---------%---------%---------%---------
%  First version created by Alain Matthes le 2012-02-22.
%---------%---------%---------%---------%---------%---------%---------%---------
% Inspired from psvectorian P Fradin H Voss
\NeedsTeXFormat{LaTeX2e}
\RequirePackage{tikz,pgfopts}
\ProvidesPackage{pgfornament}[2020/04/06 v1.1 vector ornaments]
\gdef\pgfOrnamentsObject{pgflibraryvectorian.code.tex} 
\gdef\OrnamentsFamily{vectorian}  
\pgfkeys{%
  /pgfOrnaments/object/.cd,
  /pgfOrnaments/object/.code = \gdef\pgfOrnamentsObject{pgflibrary#1.code.tex}
                               \gdef\OrnamentsFamily{#1}%
}
\ProcessPgfOptions{/pgfOrnaments}
\input{\pgfOrnamentsObject}%
%---------%---------%---------%---------%---------%---------%---------%-------- 
%    tools
%---------%---------%---------%---------%---------%---------%---------%-------- 
\makeatletter 
\newenvironment{newfamily}[1][vectorian]{%
 \global\let\SavedOrnamentsFamily\OrnamentsFamily
 \newpgfornamentfamily{#1}
 }{\newpgfornamentfamily{\SavedOrnamentsFamily}}%

\def\pgf@@ornament#1{%
\begingroup
\def\ubb{\pgfusepath{use as bounding box}}
\def\i{\pgfusepath{clip}}%
\def\k{\pgfusepath{stroke}}%
\let\o\pgfpathclose
\let\s\pgfusepathqfillstroke
\def\p ##1##2{\pgfqpoint{##1bp}{##2bp}}%
\def\m ##1 ##2 {\pgfpathmoveto{\p{##1}{##2}}}%
\def\l ##1 ##2 {\pgfpathlineto{\p{##1}{##2}}}%
\def\r ##1 ##2 ##3 ##4 {\pgfpathrectangle{\p{##1}{##2}}{\p{##3}{##4}}}%
\def\c ##1 ##2 ##3 ##4 ##5 ##6 {%
\pgfpathcurveto{\p{##1}{##2}}{\p{##3}{##4}}{\p{##5}{##6}}}%
\@@input \OrnamentsFamily#1.pgf%
\endgroup}%  

\newcommand{\callornament}[1]{%
\begingroup
\def\ubb{\pgfusepath{use as bounding box}}
\def\i{\pgfusepath{clip}}%
\let\o\pgfpathclose
\let\s\pgfusepathqfillstroke
\def\p ##1##2{\pgfqpoint{##1bp}{##2bp}}%
\def\m ##1 ##2 {\pgfpathmoveto{\p{##1}{##2}}}%
\def\l ##1 ##2 {\pgfpathlineto{\p{##1}{##2}}}%
\def\r ##1 ##2 ##3 ##4 {\pgfpathrectangle{\p{##1}{##2}}{%
                       \p{##3}{##4}}}%
\def\c ##1 ##2 ##3 ##4 ##5 ##6 {%
\pgfpathcurveto{\p{##1}{##2}}{\p{##3}{##4}}{\p{##5}{##6}}}%
\@@input #1\relax
\endgroup}
%---------%---------%---------%---------%---------%---------%---------%---------
% Les options de \pgfornament sont:
%
% scale        : nombre (échelle, 1 par défaut)
% width        : nombre + unité (largeur, naturelle par défaut)
% height       : nombre + unité (hauteur, naturelle par défaut)
% color        : couleur ( par défaut couleur courante )
% symmetry=h   : true/false (symétrie horizontale, false par défaut)
% symmetry=v   : true/false (symétrie verticale,   false par défaut)
% symmetry=c   : true/false (symétrie centrale h+v,false par défaut)
%---------%---------%---------%---------%---------%---------%---------%-------- 
\tikzset{pgfornamentstyle/.style={}}%  
\pgfkeys{%
  /ornament/.cd,
  scale/.code         =  {\def\pgfornamentscale{#1}},
  width/.code         =  {\def\pgfornamentwidth{#1}},
  height/.code        =  {\def\pgfornamentheight{#1}},
  color/.code         =  {\def\pgfornamentcolor{#1}},
  opacity/.code       =  {\def\pgfornamentopacity{#1}},
  anchor/.code        =  {\def\pgfornamentanchor{#1}},
  ydelta/.code        =  {\def\pgfornamentydelta{#1}}, 
  symmetry/.is choice,
  symmetry/v/.code     = {\tikzset{pgfornamentstyle/.append  
     style={cm={-1,0,0,1,(0,0)}}}},
  symmetry/c/.code     = {\tikzset{pgfornamentstyle/.append 
     style={cm={-1,0,0,-1,(0,0)}}}},
  symmetry/h/.code     = {\tikzset{pgfornamentstyle/.append 
     style={cm={1,0,0,-1,(0,0)}}}},
  symmetry/none/.code  = {\tikzset{pgfornamentstyle/.append style={cm={1,0,0,1,(0,0)}}}}%
}%
%---------%---------%---------%---------%---------%---------%---------%---------
\def\pgfornament{\pgfutil@ifnextchar[{\pgf@ornament}{\pgf@ornament[]}}%
\def\pgf@ornament[#1]#2{%
\pgfkeys{%
  /ornament/.cd,
   scale    =  1,
   opacity  =  {},
   width    =  {},
   height   =  {},
   color    =  {},
   ydelta   =  0 pt,
   symmetry =  none ,
   anchor   =  center
   }% 
\pgfqkeys{/ornament}{#1}%
\ifx\pgfornamentcolor\empty 
    \tikzset{pgfornamentstyle/.append style={}}%
\else 
    \tikzset{pgfornamentstyle/.append style={color=\pgfornamentcolor}}%
\fi
\ifx\pgfornamentopacity\empty 
    \tikzset{pgfornamentstyle/.append style={}}%
\else 
    \tikzset{pgfornamentstyle/.append style={opacity=\pgfornamentopacity}}%
\fi
\ifx\pgfornamentwidth\empty
   \else
   \@pgfornamentDim{#2}
   \pgfmathsetmacro{\pgfornamentscale}{\pgfornamentwidth/\@pgfornamentX bp}%
\fi  
\ifx\pgfornamentheight\empty
   \else
    \@pgfornamentDim{#2}
    \pgfmathsetmacro{\pgfornamentscale}{\pgfornamentheight/\@pgfornamentY bp}%
\fi
\begin{tikzpicture}[%
baseline={([yshift=\pgfornamentydelta]current bounding box.\pgfornamentanchor)},
   pgfornamentstyle]
   \pgftransformscale{\pgfornamentscale}%
   \pgf@@ornament{#2}%
\end{tikzpicture}%
\tikzset{pgfornamentstyle/.style={cm={1,0,0,1,(0,0)}}}
}% end pgfornament

\gdef\ornamenttopos{.5}
\gdef\ornamenttoanchor{center}
\gdef\ornamenttosymmetry{none} 
\tikzset{options default/.style={anchor=center,
                                 sloped,
                                 allow upside down,
                                 inner sep=0pt}}
\tikzset{ornament/at/.code={\def\ornamenttopos{#1}},
         options/.style={options default,#1},
         ornament symmetry/.code={\def\ornamenttosymmetry{#1}},
         node anchor/.code={\def\ornamenttoanchor{#1}}, 
         ornament/.style={%
         to path={%
\pgfextra{%
      \tikz@scan@one@point\pgfutil@firstofone(\tikztostart)\relax
         \pgf@xa=\pgf@x
         \pgf@ya=\pgf@y 
      \tikz@scan@one@point\pgfutil@firstofone(\tikztotarget)\relax
         \pgf@xb=\pgf@x
         \pgf@yb=\pgf@y
         \advance\pgf@xa by-\pgf@xb
         \advance\pgf@ya by-\pgf@yb
      \pgfmathveclen{\pgf@xa}{\pgf@ya}%
      \global\let\ornamentlen\pgfmathresult} 
       --  node [pos=\ornamenttopos,options,
              anchor=\ornamenttoanchor]{%
        \pgfornament[width    = \ornamentlen,
                 symmetry=\ornamenttosymmetry]{#1}}  
            (\tikztotarget)\tikztonodes %end pgfextra    
    }% end to path
  }% end style
}% end \tikzset

\def\pgfornamenthline#1#2#3#4{%
  \pgfextractx{\pgf@x}{\pgfpointanchor{#1}{#3 east}}
  \pgf@xa=\pgf@x 
  \pgfextractx{\pgf@x}{\pgfpointanchor{#2}{#3 west}} 
  \pgf@xb=\pgf@x
  \advance\pgf@xb by -\pgf@xa
\node[inner sep=0pt] at ($(#1.#3 east)!.5!(#2.#3 west)$) {\pgfornament[width=\pgf@xb]{#4}} ;  
}
\def\pgfornamentvline#1#2#3#4{%
  \pgfextracty{\pgf@y}{\pgfpointanchor{#1}{south #3}}
  \pgf@ya=\pgf@y 
  \pgfextracty{\pgf@y}{\pgfpointanchor{#2}{north #3}} 
  \pgf@yb=\pgf@y
  \advance\pgf@yb by -\pgf@ya
\node[inner sep=0pt,rotate=90] at ($(#1.south #3)!.5!(#2.north #3)$) {\pgfornament[width=\pgf@yb]{#4}} ;  
}%
\def\getornamentlength#1#2#3#4{%
 \pgfpointdiff{\pgfpointanchor{#1}{#2}}%
              {\pgfpointanchor{#3}{#4}}%
   \pgf@xa=\pgf@x
   \pgf@ya=\pgf@y
   \pgfmathveclen{\pgf@xa}{\pgf@ya}%
   \global\let\ornamentlen\pgfmathresult 
}%
\def\getornamentangle#1#2#3{%
  \pgfpointdiff{\pgfpointanchor{#2}{center}}{\pgfpointanchor{#3}{center}}%
  \pgfmathsetmacro{#1}{atan2(\pgf@x,\pgf@y)}%
}%
\makeatother
\newcommand{\resetpgfornamentstyle}{\tikzset{pgfornamentstyle/.style={}}}

% 2020 Changing vector objects
\def\newpgfornamentfamily#1{%
  \edef\OrnamentsFamily{#1}
  \gdef\pgfOrnamentsObject{pgflibrary\OrnamentsFamily.code.tex}
  \input{\pgfOrnamentsObject}%
  }%

\makeatletter
\pgfkeys{/ornamentline/.cd,
         color/.store in                 = \ornamentcolor,
         color                           = black,
  /ornamentline/.search also={/tikz}}
\def\pgfornamentline{\pgfutil@ifnextchar[{\pgf@ornamentline}{\pgf@ornamentline[]}}%
\def\pgf@ornamentline[#1]#2#3#4#5{%

\pgfqkeys{/ornamentline}{#1}%
\pgfmathsetmacro\nbo{#4}
\path (#2) -- (#3) foreach \i in {0,...,\nbo} {coordinate[pos=\i/\nbo] (p\i)}
 [color=\ornamentcolor] foreach \i [count=\j]  in {0,...,\number\numexpr\nbo-1} { (p\i)  to [ornament=#5]   (p\j)};
}
\makeatother
\endinput