musiktheorietheorie/musixtex/tex/musixbar.tex

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2022-03-27 12:09:14 +02:00
%%%%%%%%%% Hiding/printing bar lines individually %%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Here comes a bunch of rather general macros which enable printing or
% hiding barlines for each staff and inter-staff space individually:
%
% Mthimkhulu Molekwa <MMolekwa@rrs.co.za>
\ifx\indivbarrules\undefined\else\endinput\fi
\immediate\write16{MusiXBAR printing or hiding seperate bar lines 1.01\space<23 Februar 2000>}%
\edef\catcodeat{\the\catcode`\@}\catcode`\@=11
%\makeatletter
\newdimen\barline@depth
\def\rul@indiv#1{%
\n@loop
\Comp@High
\expandafter\ifx\csname s@b\romannumeral\noinstrum@nt\endcsname\relax
\multiply\barline@depth -1\relax
\advance\barline@depth\altitude
\else
\barline@depth=0pt\relax
\fi
{\expandafter\ifx\csname h@bl\romannumeral\noinstrum@nt\endcsname 1%
\y@v=0pt\relax
\fi
\raise\altitude\rlap{\vrule\@depth\barline@depth\@width#1\@height\y@v}}%
\barline@depth\altitude
\advance\barline@depth\y@v
\repeat
\addspace#1}
\def\rul@indiv@#1{\n@loop{\prul@indiv@#1}\repeat\addspace#1}
\def\prul@indiv@#1{%
\y@v\interportee \C@Inter\advance\y@v-\stem@skip
\expandafter\ifx\csname s@b\romannumeral\noinstrum@nt\endcsname\relax
\multiply\barline@depth -1\relax
\advance\barline@depth\altitude
\else
\barline@depth=0pt\relax
\fi
{\expandafter\ifx\csname h@bl\romannumeral\noinstrum@nt\endcsname 1%
\y@v=0pt\relax
\fi
\p@loop
\raise\altportee\rlap{%
\vrule\@depth\barline@depth\@width#1\@height\y@v}%
\count@portee
\repeat}%
\barline@depth\altitude
\advance\barline@depth\y@v}
%== Required to use the following macros
\def\indivbarrules{%
\let\writ@rule\rul@indiv
\sepbarrule 1}
\def\Indivbarrules{%
\let\writ@rule\rul@indiv@
\sepbarrule 1}
%== separates bar line of specified instrument from one of previous instrument
\def\sepbarrule#1{\expandafter\let\csname s@b\romannumeral#1\endcsname 1}
%== connects bar line of specified instrument to one of previous instrument
\def\conbarrule#1{%
\if 1#1\else\expandafter\let\csname s@b\romannumeral#1\endcsname\relax\fi}
%== hides bar line for specified instrument
\def\hidebarrule#1{\expandafter\let\csname h@bl\romannumeral#1\endcsname 1}
%== shows bar line for specified instrument
\def\showbarrule#1{\expandafter\let\csname h@bl\romannumeral#1\endcsname\relax}
%== separates barlines in multistaff instruments
\def\rul@sep@#1{\n@loop{\prul@sep#1}\repeat\addspace#1}
\def\prul@sep#1{%
\y@v\interportee \C@Inter\advance\y@v-\stem@skip
\p@loop
\hbox{\raise\altportee\rlap{%
\vrule\@depth\hlthick\@width#1\@height\y@v}}%
\count@portee\repeat}
\def\Sepbarrules{\let\writ@rule\rul@sep@ }
%-\makeatother
\catcode`\@=\catcodeat
\endinput
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Here comes an example of how to use these macros
%%%%% Pre-amble
\input musixtex
\input musixbar
\instrumentnumber3
\setmeter3{{\meterfrac{3}{4}}}
\setmeter2{{\meterfrac{2}{4}}}
\setmeter1{{\meterfrac{3}{8}}}
\nobarnumbers
\indivbarrules
\sepbarrule2
\sepbarrule3
%%%%% Spacing
\beforeruleskip=0.5\afterruleskip
\interinstrument=4\Interligne
%%%%% Macros
\let\ni\nextinstrument
%%%%% Music
\linegoal2
\startpiece\addspace\afterruleskip
\NOtes\pt f\qa f\ni\qa f\ni\qa f\en
\hidebarrule2\hidebarrule3\bar
\NOtes\multnoteskip{.333}\Tqbu fff\ni\qa f\ni\qa f\en
\showbarrule2\bar
\NOtes\pt f\qa f\ni\qa f\ni\qa f\en
\hidebarrule2\showbarrule3\bar
\NOtes\multnoteskip{.333}\Tqbu fff\ni\qa f\ni\qa f\en
\showbarrule2\hidebarrule3\bar
\NOtes\pt f\qa f\ni\qa f\ni\qa f\en
\hidebarrule2\bar
\NOtes\multnoteskip{.333}\Tqbu fff\ni\qa f\ni\qa f\en
\showbarrule2\showbarrule3\bar
\NOtes\pt f\qa f\ni\qa f\ni\qa f\en
\hidebarrule2\hidebarrule3\bar
\NOtes\multnoteskip{.333}\Tqbu fff\ni\qa f\ni\qa f\en
\showbarrule2\bar
\NOtes\pt f\qa f\ni\qa f\ni\qa f\en
\hidebarrule2\showbarrule3\bar
\NOtes\multnoteskip{.333}\Tqbu fff\ni\qa f\ni\qa f\en
\showbarrule2\hidebarrule3\bar
\NOtes\pt f\qa f\ni\qa f\ni\qa f\en
\hidebarrule2\bar
\NOtes\multnoteskip{.333}\Tqbu fff\ni\qa f\ni\qa f\en
\showbarrule2\showbarrule3\stoppiece
\bye