copyright.sty

% This file is part of eclecTeX, a multi-purpose LaTeX library.
%
% © 2009-2013 Sebastián González Montesinos.
%
% This work may be distributed and/or modified under the conditions of
% the LaTeX Project Public License version 1.3 or later.
%
% This work has the LPPL maintenance status `maintained'.
% The Current Maintainer of this work is Sebastián González.

\NeedsTeXFormat{LaTeX2e}[1999/12/01]

\ProvidesPackage{eclectex/copyright}
  [2013/07/11 v0.0 Copyright utilities.]

\ProcessOptions\relax

% ---[ Packages ]---

\RequirePackage{pgfkeys}

% ---[ Commands ]---

\pgfkeys
  {eclectex/copyright/.cd,
   holder/.store in=\copyright@holder,
   holder/.value required,
   years/.store in=\copyright@years,
   years/.value required,
   license/.store in=\copyright@license,
   license/.value required,
   logo/.store in=\copyright@logo,
   logo/.value required}

\renewcommand{\copyright}[2][]
  {\pgfkeys{eclectex/copyright/.cd,
      years=\ifdefvoid{\svndate}{\the\year}{\svnyear},
      license=All rights reserved.,
      holder=#2,
      #1}}

\newcommand{\makecopyright}
  {\par\bigskip\bigskip\noindent%
   \newlength{\copyright@notice@width}%
   \setlength{\copyright@notice@width}{\textwidth-1em}
   \ifdefvoid{\copyright@logo}{}
     {\pgfdeclareimage[height=2.5em]{copyrightlogo}{\copyright@logo}%
      \newlength{\copyright@logo@width}%
      \settowidth{\copyright@logo@width}{\pgfuseimage{copyrightlogo}}%
      \addtolength{\copyright@notice@width}{-\copyright@logo@width-1ex}%
      \begin{minipage}{\copyright@logo@width}
        \tikz[inner sep=0pt, opacity=.7]
          \node{\pgfuseimage{copyrightlogo}};
      \end{minipage}\hfill}%
   \begin{minipage}{\copyright@notice@width}
     \sffamily\footnotesize\color{black!70}
     \ifdefvoid{\copyright@holder}{}
       {\textbf{\textcopyright\,\copyright@years~\copyright@holder%
         \ifdefvoid{\copyright@license}{}{. }}}%
     \ifdefvoid{\copyright@license}{}
       {\copyright@license}%
   \end{minipage}}