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authorKarl Berry <karl@freefriends.org>2006-01-12 23:59:45 +0000
committerKarl Berry <karl@freefriends.org>2006-01-12 23:59:45 +0000
commit07c26f83f669b504de20d91fdef8009c43629352 (patch)
tree753f1bcbaaba3e204c55bc2fdbf68e80e3dda5be
parent91686423316d9adbdb83d6ed2e97c61f1e46d335 (diff)
msc
git-svn-id: svn://tug.org/texlive/trunk@1110 c570f23f-e606-0410-a88d-b1316a301751
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+%% MSC Macro Package
+%% file msc.sty
+%% LaTeX macros to draw message sequence charts
+%%
+%%
+%% Copyright 2002 V. Bos and S. Mauw
+%
+% This program may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either version 1.2
+% 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 1.2 or later is part of all distributions of LaTeX
+% version 1999/12/01 or later.
+
+% This program consists of the files
+% msc.sty
+% manual.tex
+% manual.ps
+% refman.tex
+% refman.ps
+% biblio.bib
+% maintenance.tex
+% maintenance.ps
+% README
+% COPYRIGHT
+
+% Address:
+% Eindhoven University of Technology
+% P.O. Box 513
+% 5600 MB Eindhoven
+% The Netherlands
+% Email: sjouke@win.tue.nl, vbos@abo.fi
+% Updates via: http://www.win.tue.nl/~sjouke/mscpackage.html
+% and via CTAN directory: macros/latex/contrib/msc/
+%
+% RCS version: $Id: msc.sty,v 1.15 2004/03/15 11:58:33 vbos Exp $
+%
+\def\mscdate{2004/03/15}% update this whenever this file changes
+\def\mscversion{1.14}% update this whenever a new version is ready
+\NeedsTeXFormat{LaTeX2e}%
+\ProvidesPackage{msc}[\mscdate, v\mscversion]
+\typeout{msc version \mscversion. (\mscdate)}
+\RequirePackage{color,pstricks,calc,ifthen}
+%
+% mscunit: the unit of msc lengths
+\def\mscunit{cm}%
+\def\setmscunit#1{\gdef\mscunit{#1}}
+%
+%
+%
+% msc lengths
+% First the customizable lengths:
+
+\newlength{\actionheight}% height of action symbols
+\newlength{\actionwidth}% width of action symbol
+\newlength{\bottomfootdist}% distance between bottom of foot symbol and frame
+\newlength{\msccommentdist}% distance of comment to its instance
+\newlength{\conditionheight}% height of condition symbols
+\newlength{\conditionoverlap}% overlap of condition symbol
+\newlength{\envinstdist}% distance between environments and nearest instance line
+\newlength{\firstlevelheight}% height of level just below head symbols
+\newlength{\hmscconditionheight}% height of hmsc condition symbol
+\newlength{\hmscconditionwidth}% width of hmsc condition symbol
+\newlength{\hmscconnectionradius}% radius of hmsc connection symbols
+\newlength{\hmscreferenceheight}% height of hmsc reference symbol
+\newlength{\hmscreferencewidth}% width of hmsc reference symbol
+\newlength{\hmscstartsymbolwidth}% width of hmsc start symbol
+\newlength{\inlineoverlap}% overlap of inline symbol
+\newlength{\instbarwidth}% default width of vertical instance bars
+\newlength{\instdist}% distance between (vertical) instance lines
+\newlength{\instfootheight}% height of foot symbols
+\newlength{\instheadheight}% height of head symbols
+\newlength{\instwidth}% width of header and foot symbols
+\newlength{\labeldist}% distance between labels and message lines or head symbol boxes
+\newlength{\lastlevelheight}% height of level just above foot symbols
+\newlength{\leftnamedist}% distance between left of frame and (top of) msc title
+\newlength{\levelheight}% height of a level
+\newlength{\lostsymbolradius}% radius of the lost and found symbols
+\newlength{\markdist}% distance between mark and its instance
+\newlength{\measuredist}% user definable length for horizontal measure distance
+\newlength{\measuresymbolwidth}% width of measure symbols
+\newlength{\mscdocreferenceheight}% minimal height of mscdoc reference
+\newlength{\mscdocreferencewidth}% minimal width of mscdoc reference
+\newlength{\referenceoverlap}% overlap of reference symbol
+\newlength{\regionbarwidth}% width of region bars
+\newlength{\selfmesswidth}% length of horizontal arms of self messages
+\newlength{\stopwidth}% width of the stop symbol
+\newlength{\timerwidth}% width of the timer symbols
+\newlength{\topheaddist}% distance between top of head symbols and frame
+\newlength{\topnamedist}% distance between top of frame and (top of) msc title
+
+%
+% Now the internal lengths
+\newlength{\tmp@X}
+\newlength{\tmp@Y}
+\newlength{\tmp@Xa}
+\newlength{\tmp@Ya}
+\newlength{\tmp@Xb}
+\newlength{\tmp@Yb}
+\newlength{\tmp@Xc}
+\newlength{\tmp@Yc}
+\newlength{\tmp@Xd}
+\newlength{\tmp@Yd}
+\newlength{\msc@currentheight}
+\newlength{\msc@currentwidth}
+\newlength{\msc@totalwidth}
+\newlength{\msc@totalheight}
+\newlength{\msc@commentdist}% distance of comment to its instance
+%
+%
+\newcommand{\msc@incrcounter}[1]{\addtocounter{#1}{1}}%
+%
+% internal box
+\newsavebox{\tmp@box}
+%
+% some internal offsets
+\def\msc@leveloffset{0}%
+\def\mscscalefactor{1}%
+\newcommand{\setmscscale}[1]{\def\mscscalefactor{#1}}%
+%
+% Command to change the footer color (legal values are black, gray,
+% lightgray, and white)
+\def\setfootcolor#1{\def\msc@footcolor{#1}}
+%
+% And some internal counters
+\newcounter{mscinstcnt}
+\newcounter{tmpcnt}
+%
+% \messlabelpos defines the position of message labels.
+% The default value is "l" (left) other value(s) are "r" (right)
+\def\timerpos{l}
+%
+% \msc@timerpos is the internal variant of \timerpos
+% This internal variant is used by the actual drawing commands for self messages
+\def\msc@timerpos{l}
+%
+% \msc@settimerpos sets the internal \mes@timerpos
+\def\msc@settimerpos#1{
+ \ifthenelse{\not\(\equal{#1}{l} \or \equal{#1}{r}\)}{%
+ \msc@unknowntimerposerr{#1}}{% else
+ \def\msc@timerpos{#1}%
+ }%
+}
+%
+% \dummyinst{#1} (\dummyinst*{#1}) declares a dummy msc-instance and does not
+% draws its head symbol nor its instance axis until an instance create/start is
+% encountered. The starred version declares a fat instance.
+% #1: nickname that can be used in \mess -like commands
+%
+\def\dummyinst{\@ifstar{\msc@dummyinststar}{\msc@dummyinstnostar}}
+\def\msc@dummyinstnostar#1{%
+ \msc@makedummyinst{\the\instbarwidth}{#1}%
+}
+\def\msc@dummyinststar#1{%
+ \msc@makedummyinst{\the\instwidth}{#1}%
+}
+\def\msc@makedummyinst#1#2{%
+ \@ifundefined{mscinst#2}{%
+ \ifthenelse{\value{mscinstcnt}=2}{% Aha: this is the first msc instance, so, add the
+ \addtolength{\msc@currentwidth}{\envinstdist}% left \envinstdist to \msc@currentwidth
+ }{%not the first instance , so add the instdist to the \mec@currentwidth
+ \addtolength{\msc@currentwidth}{\instdist}%
+ }% and update x-pos of right environment
+ \setlength{\tmp@X}{\msc@currentwidth+\envinstdist}%
+ \msc@setinstxpos{envright}{\the\tmp@X}%
+ % make an instance with empty inside name and empty above name:
+ \msc@declinst{#2}{\relax}{\relax}{#1}%
+ % make y-pos undefined, to make sure that no instance line will be drawn
+ \msc@setinstypos{#2}{undefined}% --added sm
+ }{% else: nickname #2 already defined!
+ \msc@nicknamedefinederr{#2}%
+ }%
+}
+%
+% \declinst[*] declares a new msc-instance and draws its head symbol
+% the starred versions makes a fat instance.
+% #1: nickname that can be used in \mess
+% #2: name of the instance (above instance head symbol)
+% #3: name of the instance (inside instance head symbol)
+%
+%
+\def\declinst{\@ifstar{\msc@declinststar}{\msc@declinstnostar}}
+%
+% Some commands are defined as well (INSTNR is the arabic
+% representation of the instance number):
+% \instabname#1: `above name' of instance with nickname #1
+% \instinname#1: `inside name' of instance with nickname #1
+% \instnicknameINSTNR: returns the nickname of instance INSTNR
+% \instxposINSTNR: returns the x-position of instance with nickname #1
+% \instyposINSTNR: returns the last y-position of instance with nickname #1
+% \instlinestyle#1: the line style (dashed or solid) of instance with nickname #1
+\def\msc@declinstnostar#1#2#3{% user command to declare instances
+ \msc@dummyinstnostar{#1}%
+ %\inststart{#1}{#2}{#3}%
+ % define above name and inside name
+ \expandafter\def\csname instabname#1\endcsname{#2}% `above name'
+ \expandafter\def\csname instinname#1\endcsname{#3}% `inside name'
+ % draw the instance header symbol
+ \msc@drawinstanceheadsymbol{#1}{\the\topheaddist}%
+ % redefine the instance's y position
+ \setlength{\tmp@Y}{\topheaddist+\instheadheight}%
+ \msc@setinstypos{#1}{\the\tmp@Y}%
+}
+%
+\def\msc@declinststar#1#2#3{% user command to declare instances
+ \msc@dummyinststar{#1}%
+ % define above name and inside name
+ \expandafter\def\csname instabname#1\endcsname{#2}% `above name'
+ \expandafter\def\csname instinname#1\endcsname{#3}% `inside name'
+ % draw the instance header symbol
+ \msc@drawinstanceheadsymbol{#1}{\the\topheaddist}%
+ % redefine the instance's y position
+ \setlength{\tmp@Y}{\topheaddist+\instheadheight}%
+ \msc@setinstypos{#1}{\the\tmp@Y}%
+}
+%
+% \msc@declinst: internal command to declare instances.
+% Some commands are defined as well (INSTNR is the arabic
+% representation of the instance number):
+% \instabnameINSTNR: returns the instance above name of #1
+% \instnicknameINSTNR: returns the nickname of instance #1
+% \instxposINSTNR: returns the x-position of instance with nickname #1
+% \instyposINSTNR: returns the last y-position of instance with nickname #1
+% \instlinestyle#1: the line style (dashed or solid) of instance with nickname #1
+% \instregionstyle#1: the region style (normal, coregion, suspension, or activation)
+\def\msc@declinst#1#2#3#4{% internal command to declare instances
+ \@ifundefined{mscinst#1}{%
+ \@namedef{mscinst#1}{\relax}%
+ \expandafter\def\csname instabname#1\endcsname{#2}% `above name'
+ \expandafter\def\csname instinname#1\endcsname{#3}% `inside name'
+ \expandafter\def\csname instbarwidth#1\endcsname{#4}% width of the vertical instance bar
+ % the x position of an instance, \instxpos#1, is stored as a string, not as
+ % a TeX-length, since that would use up too much of TeX limited number of
+ % length-registers.
+ % However, this means we first have to calculate the x-pos, and then
+ % assign the string representation of the result to \instxpos#1:
+ \setlength{\tmp@X}{\msc@currentwidth}%
+ \expandafter\edef\csname instxpos#1\endcsname{\the\tmp@X}%
+ \ifthenelse{\lengthtest{\instbarwidth < #4}}%
+ {%
+ \expandafter\def\csname instisfat#1\endcsname{true}%
+ \setlength{\tmp@Xa}{#4}%
+ \addtolength{\tmp@X}{-.5\tmp@Xa}%
+ \expandafter\edef\csname instlxpos#1\endcsname{\the\tmp@X}%
+ \addtolength{\tmp@X}{\tmp@Xa}%
+ \expandafter\edef\csname instrxpos#1\endcsname{\the\tmp@X}%
+ }%
+ {%
+ \expandafter\def\csname instisfat#1\endcsname{false}%
+ \expandafter\edef\csname instlxpos#1\endcsname{\the\tmp@X}%
+ \expandafter\edef\csname instrxpos#1\endcsname{\the\tmp@X}%
+ }%
+ \expandafter\def\csname instnickname\arabic{mscinstcnt}\endcsname{#1}%
+ \setlength{\tmp@Y}{\msc@currentheight}%
+ \expandafter\edef\csname instypos#1\endcsname{\the\tmp@Y}%
+ \expandafter\def\csname instlinestyle#1\endcsname{solid}%
+ \expandafter\def\csname instfootcolor#1\endcsname{\msc@footcolor}%
+ \expandafter\def\csname instregionstyle#1\endcsname{normal}%
+ \msc@incrcounter{mscinstcnt}%
+ }{% else, #1 already defined
+ \msc@nicknamedefinederr{#1}%
+ }%
+}
+%
+% \msc@instnickname gets the nickname of msc instance with number #1
+% (This macro is used in \msc@drawinstancelevels)
+\def\msc@instnickname#1{%
+ \csname instnickname\arabic{#1}\endcsname%
+}
+% \msc@instabname gets the above name of instance #1
+\def\msc@instabname#1{%
+ \csname instabname#1\endcsname%
+}
+% \msc@instinname gets the inside name of instance #1
+\def\msc@instinname#1{%
+ \csname instinname#1\endcsname%
+}
+%
+% \msc@instxpos gets the x position (i.e., horizontal position) of the
+% msc instance with nickname #1.
+\def\msc@instxpos#1{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \expandafter\csname instxpos#1\endcsname}%
+}
+%
+%
+\def\msc@instlxpos#1{
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \expandafter\csname instlxpos#1\endcsname}%
+}
+%
+\def\msc@instrxpos#1{
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \expandafter\csname instrxpos#1\endcsname}%
+}
+%
+% \msc@setinstxpos sets the (l/r) x position of instance with nickname #1 to
+% the string #2
+\def\msc@setinstxpos#1#2{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \expandafter\edef\csname instxpos#1\endcsname{#2}%
+ \expandafter\edef\csname instlxpos#1\endcsname{#2}%
+ \expandafter\edef\csname instrxpos#1\endcsname{#2}%
+ }%
+}
+%
+\def\msc@setinstlxpos#1#2{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \expandafter\edef\csname instlxpos#1\endcsname{#2}%
+ }%
+}
+%
+\def\msc@setinstrxpos#1#2{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \expandafter\edef\csname instrxpos#1\endcsname{#2}%
+ }%
+}
+%
+% \msc@instypos gets the last y position (i.e., vertical position) of the
+% msc instance with nickname #1.
+\def\msc@instypos#1{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \csname instypos#1\endcsname}%
+}
+%
+% \msc@setinstypos sets the last y position of instance with nickname #1 to
+% the string #2
+\def\msc@setinstypos#1#2{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \expandafter\edef\csname instypos#1\endcsname{#2}%
+ }%
+}
+%
+% Change \instlinestyle command of msc instance with nickname #1 into #2
+% #2 should be one of: solid, dashed, or dotted
+\def\msc@setinstlinestyle#1#2{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \ifthenelse{\not\(\equal{#2}{solid} \or
+ \equal{#2}{dashed} \or
+ \equal{#2}{dotted}\)}{% unknown linestyle
+ \msc@unknownlinestyleerr{#2}}{%
+ \expandafter\def\csname instlinestyle#1\endcsname{#2}%
+ }%
+ }%
+}
+%
+% \msc@instlinestyle returns the linestyle of instance with nickname #1
+\def\msc@instlinestyle#1{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \csname instlinestyle#1\endcsname}%
+}
+%
+% Change the foot color for instance with nickname #1 into #2
+\def\msc@setinstfootcolor#1#2{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \expandafter\def\csname instfootcolor#1\endcsname{#2}%
+ }%
+}
+%
+% \msc@instfootcolor returns the color of the footer of instance with nicknam #1
+\def\msc@instfootcolor#1{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \csname instfootcolor#1\endcsname}%
+}
+%
+% Change \instregionstyle command of msc instance with nickname #1 into #2
+% #2 should be one of: normal, coregion, suspension, or activation
+\def\msc@setinstregionstyle#1#2{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \ifthenelse{\not\(\equal{#2}{normal} \or
+ \equal{#2}{coregion} \or
+ \equal{#2}{suspension} \or
+ \equal{#2}{activation}\)}
+ {% unknown region style
+ \msc@unknownregionstyleerr{#2}
+ }{%
+ \expandafter\def\csname instregionstyle#1\endcsname{#2}%
+ }%
+ \ifthenelse{\equal{#2}{suspension} \or \equal{#2}{activation}}
+ {%
+ \ifthenelse{\equal{\msc@instisfat{#1}}{true}}
+ {\relax}
+ {%
+ \setlength{\tmp@X}{\msc@instxpos{#1}}%
+ \setlength{\tmp@Xa}{\regionbarwidth}%
+ \addtolength{\tmp@X}{-.5\tmp@Xa}%
+ \msc@setinstlxpos{#1}{\the\tmp@X}%
+ \addtolength{\tmp@X}{\tmp@Xa}%
+ \msc@setinstrxpos{#1}{\the\tmp@X}%
+ }
+ }{% new region style is normal or coregion
+ \ifthenelse{\equal{\msc@instisfat{#1}}{true}}%
+ {\relax}%
+ {\msc@setinstbarwidth{#1}{\instbarwidth}%
+ \msc@setinstlxpos{#1}{\msc@instxpos{#1}}%
+ \msc@setinstrxpos{#1}{\msc@instxpos{#1}}%
+ }%
+ }%
+ }%
+}
+%
+% \msc@instregionstyle returns the region style of instance with nickname #1
+\def\msc@instregionstyle#1{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \csname instregionstyle#1\endcsname}%
+}
+%
+% \msc@instbarwidth returns the width of the bar of instance with nickname #1
+\def\msc@instbarwidth#1{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \csname instbarwidth#1\endcsname}%
+}
+%
+% \msc@setinstbarwidth sets the width of the bar of instance with nickname #1
+% to the string #2
+\def\msc@setinstbarwidth#1#2{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \expandafter\edef\csname instbarwidth#1\endcsname{#2}%
+ \ifthenelse{\lengthtest{\instbarwidth < #2}}%
+ {\expandafter\def\csname instisfat#1\endcsname{true}}%
+ {\expandafter\def\csname instisfat#1\endcsname{false}}%
+ }%
+}
+%
+%\msc@isfateinst returns one of the strings `true' of `false', indicating if
+% the instance with nickname #1 is a fat instance.
+\def\msc@instisfat#1{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \csname instisfat#1\endcsname}%
+}
+%
+%
+% \changeinstbarwidth changes the instance width of instance with nickname #1 to
+% the length #2
+\def\changeinstbarwidth#1#2{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}%
+ {% else, #1 is defined
+ \msc@drawinstanceline{#1}%
+ \setlength{\tmp@X}{\msc@instxpos{#1}}%
+ \setlength{\tmp@Y}{\msc@currentheight}%
+ \msc@setinstypos{#1}{\the\tmp@Y}%
+ \setlength{\tmp@Xb}{#2}%
+ \ifthenelse{\lengthtest{\tmp@Xb > \instbarwidth}}%
+ {%
+ \setlength{\tmp@Xb}{0.5\tmp@Xb}%
+ \addtolength{\tmp@Xb}{\tmp@X}}%
+ {%
+ \setlength{\tmp@Xb}{\tmp@X}}%
+ \ifthenelse{\equal{true}{\msc@instisfat{#1}}}
+ {%
+ \setlength{\tmp@Xa}{\msc@instbarwidth{#1}}%
+ \setlength{\tmp@Xa}{0.5\tmp@Xa}%
+ \addtolength{\tmp@Xa}{\tmp@X}%
+ }{%
+ \setlength{\tmp@Xa}{\tmp@X}%
+ }%
+ \psline(\tmp@Xa,-\tmp@Y)(\tmp@Xb,-\tmp@Y)%
+ \setlength{\tmp@Xb}{#2}%
+ \ifthenelse{\lengthtest{\tmp@Xb > \instbarwidth}}%
+ {%
+ \setlength{\tmp@Xb}{-0.5\tmp@Xb}%
+ \addtolength{\tmp@Xb}{\tmp@X}}%
+ {%
+ \setlength{\tmp@Xb}{\tmp@X}}%
+ \ifthenelse{\equal{true}{\msc@instisfat{#1}}}
+ {%
+ \setlength{\tmp@Xa}{\msc@instbarwidth{#1}}%
+ \setlength{\tmp@Xa}{-0.5\tmp@Xa}%
+ \addtolength{\tmp@Xa}{\tmp@X}%
+ }{%
+ \setlength{\tmp@Xa}{\tmp@X}%
+ }%
+ \psline(\tmp@Xa,-\tmp@Y)(\tmp@Xb,-\tmp@Y)%
+ \msc@setinstbarwidth{#1}{#2}%
+ }%
+}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% DUMMY INSTANCES (start and stop)
+%
+% Start a dummy inst
+%
+% \inststart{#1}{#2}{#3}
+% #1: nickname of stared instance
+% #2: name of the instance (above instance head symbol)
+% #3: name of the instance (inside instance head symbol)
+%
+\def\inststart#1#2#3{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ % set the above and inside names
+ \expandafter\def\csname instabname#1\endcsname{#2}% `above name'
+ \expandafter\def\csname instinname#1\endcsname{#3}% `inside name'
+ % draw the instance header symbol
+ \msc@drawinstanceheadsymbol{#1}{\the\msc@currentheight}%
+ % redefine the instance's y position
+ \setlength{\tmp@Y}{\msc@currentheight+\instheadheight}%
+ \msc@setinstypos{#1}{\the\tmp@Y}%
+ }
+}
+%
+% \inststop{#1}
+% #1: nick name of instance
+%
+% Draws the footer of #1 at current level.
+\def\inststop#1{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \addtolength{\msc@currentheight}{\lastlevelheight}
+ \msc@drawinstanceline{#1}%
+ \setlength{\tmp@Y}{\msc@currentheight}%
+ \msc@drawinstancefootsymbol{#1}{\the\tmp@Y}%
+ \addtolength{\msc@currentheight}{-\lastlevelheight}
+ \msc@setinstypos{#1}{undefined}
+ }
+}
+%
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%5
+%
+% CREATE
+%
+% \create creates a new msc-instance and draws its head symbol
+% #1: text above creation message
+% #2: nickname of creating instance
+% #3: nickname of created instance
+% #4: name of the instance (above instance head symbol)
+% #5: name of the instance (inside instance head symbol)
+%
+% Some commands are defined as well (INSTNR is the arabic
+% representation of the instance number):
+% \instabname#3: `above name' of instance with nickname #3
+% \instinname#3: `inside name' of instance with nickname #3
+% \instlinestyle#3: the line style (dashed or solid) of instance with nickname #3
+\newcommand{\create}{%
+ \@ifstar%
+ {\def\mess@style{mess}\def\mess@linsestyle{dashed}\create@A}{\def\mess@style{mess}\def\mess@linestyle{solid}\create@A}%
+}%
+\newcommand{\create@A}[1]{%
+ \def\mess@labeltext{#1}%
+ \create@B%
+}
+\newcommand{\create@B}[2][t]{%
+ \def\mess@labelposition{#1}%
+ \def\mess@sender{#2}%
+ \create@C%
+}
+\newcommand{\create@C}[4][0.5]{%
+ \def\mess@labelplacement{#1}%
+ \def\mess@receiver{#2}%
+ \def\mess@leveloffset{0}%
+ \def\mess@instanceoffset{0.5\instwidth}%
+%
+ \expandafter\@ifundefined{mscinst\mess@sender}{%
+ \msc@instundefinederr{\mess@sender}}{% else, \mess@sender is defined
+ \expandafter\@ifundefined{mscinst\mess@receiver}{%
+ \msc@instundefinederr{\mess@receiver}}{% else, \mess@receiver is defined
+ \expandafter\def\csname instabname\mess@receiver\endcsname{#3}% `above name'
+ \expandafter\def\csname instinname\mess@receiver\endcsname{#4}% `inside name'
+ % draw the instance header symbol
+ \setlength{\tmp@X}{\msc@instxpos{\mess@receiver}}% x-center head box
+ \setlength{\tmp@Y}{\msc@currentheight}% y-center head box
+ \setlength{\tmp@Xa}{-0.5\instwidth+\tmp@X}% x-upperleft head box
+ \setlength{\tmp@Ya}{\msc@currentheight-0.5\instheadheight}%
+ \setlength{\tmp@Xb}{\tmp@Xa+\instwidth}% x-lowerright head box
+ \setlength{\tmp@Yb}{\tmp@Ya+\instheadheight}% y-lowerright head box
+ \psframe[dimen=middle](\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)%
+ \rput[B](\tmp@X,-\tmp@Ya){\raisebox{\labeldist}{\makebox[0pt][c]{#3}}}%
+ \rput[B](\tmp@X,-\tmp@Y){\raisebox{-.5ex}{\makebox[0pt][c]{#4}}}%
+ % redefine the instance's y position
+ \setlength{\tmp@Y}{\msc@currentheight+0.5\instheadheight}%
+ \msc@setinstypos{\mess@receiver}{\the\tmp@Y}%
+ % draw creation arrow
+ \msc@drawarrow%
+ }%
+ }%
+}
+%
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% INLINE EXPRESSIONS (inlines)
+%
+%
+% \inlineestart creates an inline expression at the current level
+% [#1]: left overlap
+% [#2]: right overlap
+% #3: nickname of the inline
+% #4: text of the inline
+% #5: first instance of the inline
+% #6: final instance of the inline
+\newcommand{\inlinestart}[1][\inlineoverlap]{%
+ \def\msc@leftoverlap{#1}\msc@inlinecont%
+}
+\newcommand{\msc@inlinecont}[5][\msc@leftoverlap]{\msc@declinline{\msc@leftoverlap}{#1}{#2}{#3}{#4}{#5}}%
+%
+% \inlineend draws and ends the inline expression with nickname #1
+%
+\newcommand{\inlineend}{%
+ \@ifstar{\msc@inlineends}{\msc@inlineend}}
+%
+% \inlineseparator draws a ``separator'' (horizontal dashed line) through
+% inline expression with nickname #1
+\newcommand{\inlineseparator}[1]{%
+ \expandafter\@ifundefined{mscinl#1}{%
+ \msc@inlundefinederr{#1}}{% else, #1 is defined
+ \setlength{\tmp@Y}{\msc@currentheight}%
+ \psline[linestyle=dashed](\msc@inlulx{#1},-\tmp@Y)(\msc@inllrx{#1},-\tmp@Y)%
+ }%
+}
+%
+% internal commands to implement the inline expressions:
+% #1: left overlap
+% #2: right overlap
+% #3: nickname of the inline
+% #4: text of the inline
+% #5: first instance of the inline
+% #6: final instance of the inline
+%
+\def\msc@declinline#1#2#3#4#5#6{%
+ \@ifundefined{mscinl#3}{%
+ \@ifundefined{mscinst#5}{% #5 is not an instance nickname
+ \msc@instundefinederr{#5}}{%
+ \@ifundefined{mscinst#6}{% #6 is not an instance nickname
+ \msc@instundefinederr{#6}}{%
+ \ifthenelse{\lengthtest{\msc@instxpos{#5}>\msc@instxpos{#6}}}{%
+ \msc@inlfirstlasterror{#3}{#5}{#6}}{%
+ \@namedef{mscinl#3}{\relax}%
+ \expandafter\def\csname inltext#3\endcsname{\raisebox{\depth}[\totalheight][0pt]{#4}}%
+ \ifthenelse{\equal{true}{\msc@instisfat{#5}}}%
+ {%
+ \setlength{\tmp@X}{\msc@instlxpos{#5}-#1}%
+ }%
+ {%
+ \setlength{\tmp@X}{\msc@instxpos{#5}-#1}%
+ }%
+ \expandafter\edef\csname inlulx#3\endcsname{\the\tmp@X}%
+ \expandafter\edef\csname inluly#3\endcsname{\the\msc@currentheight}%
+ \ifthenelse{\equal{true}{\msc@instisfat{#6}}}%
+ {%
+ \setlength{\tmp@X}{\msc@instrxpos{#6}+#2}%
+ }%
+ {%
+ \setlength{\tmp@X}{\msc@instxpos{#6}+#2}%
+ }%
+ \expandafter\edef\csname inllrx#3\endcsname{\the\tmp@X}%
+ \expandafter\edef\csname inllry#3\endcsname{undefined}%
+ % two additional instances are defined
+ \msc@declinst{#3left}{\relax}{\relax}{\the\instbarwidth}% left of inline
+ \msc@setinstxpos{#3left}{\msc@inlulx{#3}}%
+ \msc@setinstlxpos{#3left}{\msc@inlulx{#3}}%
+ \msc@setinstrxpos{#3left}{\msc@inlulx{#3}}%
+ \msc@setinstypos{#3left}{undefined}% no instance line drawing
+ \msc@declinst{#3right}{\relax}{\relax}{\the\instbarwidth}% left of inline
+ \msc@setinstxpos{#3right}{\msc@inllrx{#3}}%
+ \msc@setinstlxpos{#3right}{\msc@inllrx{#3}}%
+ \msc@setinstrxpos{#3right}{\msc@inllrx{#3}}%
+ \msc@setinstypos{#3right}{undefined}% no instance line drawing
+ }%
+ }%
+ }%
+ }{% nickname #3 already defined
+ \msc@nicknamedefinederr{#3}%
+ }%
+}
+%
+% \msc@inlulx gets the upper-left x-position of inline with nickname #1.
+\def\msc@inlulx#1{%
+ \expandafter\@ifundefined{mscinl#1}{%
+ \msc@inlundefinederr{#1}}{% else, #1 is defined
+ \csname inlulx#1\endcsname%
+ }%
+}
+%
+% \msc@inluly gets the upper-left y-position of inline with nickname #1.
+\def\msc@inluly#1{%
+ \expandafter\@ifundefined{mscinl#1}{%
+ \msc@inlundefinederr{#1}}{% else, #1 is defined
+ \csname inluly#1\endcsname%
+ }%
+}
+%
+% \msc@inllrx gets the lower-right x-position of inline with nickname #1.
+\def\msc@inllrx#1{%
+ \expandafter\@ifundefined{mscinl#1}{%
+ \msc@inlundefinederr{#1}}{% else, #1 is defined
+ \csname inllrx#1\endcsname%
+ }%
+}
+%
+% \msc@inllry gets the lower-right y-position of inline with nickname #1.
+\def\msc@inllry#1{%
+ \expandafter\@ifundefined{mscinl#1}{%
+ \msc@inlundefinederr{#1}}{% else, #1 is defined
+ \csname inllry#1\endcsname%
+ }%
+}
+%
+% \msc@inltext gets the text of inline with nickname #1
+\def\msc@inltext#1{%
+ \expandafter\@ifundefined{mscinl#1}{%
+ \msc@inlundefinederr{#1}}{% else, #1 is defined
+ \csname inltext#1\endcsname%
+ }%
+}
+%
+% \msc@inlineend completes the inline with nickname #1
+% (the bottom line is solid)
+\def\msc@inlineend#1{%
+ \expandafter\@ifundefined{mscinl#1}{%
+ \msc@inlundefinederr{#1}}{% else, #1 is defined
+ \expandafter\edef\csname inllry#1\endcsname{\the\msc@currentheight}%
+ \setlength{\tmp@Xa}{\msc@inlulx{#1}}%
+ \setlength{\tmp@Ya}{\msc@inluly{#1}}%
+ \setlength{\tmp@Xb}{\msc@inllrx{#1}}%
+ \setlength{\tmp@Yb}{\msc@inllry{#1}}%
+%% Debug info:
+% \typeout{(\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)}%
+ \psframe[dimen=middle](\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)%
+ \settowidth{\tmp@X}{\msc@inltext{#1}}%
+ \setlength{\tmp@X}{1.1\tmp@X+\labeldist}%
+ \settoheight{\tmp@Y}{\msc@inltext{#1}}%
+ \setlength{\tmp@Y}{1.1\tmp@Y+\labeldist}%
+ \setlength{\tmp@Xb}{\tmp@X+\labeldist}%
+ \setlength{\tmp@Yb}{\tmp@Y+\labeldist}%
+ \rput(\tmp@Xa,-\tmp@Ya){%
+ \rput[tl](\labeldist,-\labeldist){\msc@inltext{#1}}%
+ \psline(0,-\tmp@Yb)(\tmp@X,-\tmp@Yb)(\tmp@Xb,-\tmp@Y)(\tmp@Xb,0)%
+ }%
+ }%
+}
+%
+% \msc@inlineends completes the inline with nickname #1
+% (the bottom line is dashed)
+\def\msc@inlineends#1{%
+ \expandafter\@ifundefined{mscinl#1}{%
+ \msc@inlundefinederr{#1}}{% else, #1 is defined
+ \expandafter\edef\csname inllry#1\endcsname{\the\msc@currentheight}%
+ \setlength{\tmp@Xa}{\msc@inlulx{#1}}%
+ \setlength{\tmp@Ya}{\msc@inluly{#1}}%
+ \setlength{\tmp@Xb}{\msc@inllrx{#1}}%
+ \setlength{\tmp@Yb}{\msc@inllry{#1}}%
+%% Debug info:
+% \typeout{(\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)}%
+ % first the solid part of the inline expression:
+ \psline(\tmp@Xa,-\tmp@Yb)(\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)%
+ % then the dashed bottom line:
+ \psline[linestyle=dashed](\tmp@Xa,-\tmp@Yb)(\tmp@Xb,-\tmp@Yb)
+ \settowidth{\tmp@X}{\msc@inltext{#1}}%
+ \setlength{\tmp@X}{1.1\tmp@X+\labeldist}%
+ \settoheight{\tmp@Y}{\msc@inltext{#1}}%
+ \setlength{\tmp@Y}{1.1\tmp@Y+\labeldist}%
+ \setlength{\tmp@Xb}{\tmp@X+\labeldist}%
+ \setlength{\tmp@Yb}{\tmp@Y+\labeldist}%
+ \rput(\tmp@Xa,-\tmp@Ya){%
+ \rput[tl](\labeldist,-\labeldist){\msc@inltext{#1}}%
+ \psline(0,-\tmp@Yb)(\tmp@X,-\tmp@Yb)(\tmp@Xb,-\tmp@Y)(\tmp@Xb,0)%
+ }%
+ }%
+}
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% REFERENCES
+%
+%
+% \referencestart creates an msc reference at the current level
+% [#1] : left overlap
+% [#2] : right overlap
+% #3: nickname of the reference
+% #4: text of the reference
+% #5: first instance of the reference
+% #6: final instance of the reference
+\newcommand{\referencestart}[1][\referenceoverlap]{%
+ \def\msc@leftoverlap{#1}\msc@referencecont%
+}
+\newcommand{\msc@referencecont}[5][\referenceoverlap]{%
+ \msc@declreference{\msc@leftoverlap}{#1}{#2}{#3}{#4}{#5}%
+ \setcounter{tmpcnt}{0}%
+ \msc@reffindfirst{#2}{\msc@drawtorefaux}%
+}
+%
+% \referenceend draws and ends the reference with nickname #1
+\newcommand{\referenceend}[1]{%
+ \msc@drawreference{#1}%
+ \setcounter{tmpcnt}{0}%
+ \setlength{\tmp@Y}{\msc@currentheight}%
+ \msc@reffindfirst{#1}{\msc@refresetypos{\the\tmp@Y}}%
+}
+%
+% internal commands to implement references:
+% #1: left overlap
+% #2: right overlap
+% #3: nickname of the reference
+% #4: text of the reference
+% #5: first instance of the reference
+% #6: final instance of the reference
+%
+\def\msc@declreference#1#2#3#4#5#6{%
+ \@ifundefined{mscref#3}{%
+ \@ifundefined{mscinst#5}{% #5 is not an instance nickname
+ \msc@instundefinederr{#5}}{%
+ \@ifundefined{mscinst#6}{% #6 is not an instance nickname
+ \msc@instundefinederr{#6}}{%
+ \ifthenelse{\lengthtest{\msc@instxpos{#5}>\msc@instxpos{#6}}}{%
+ \msc@reffirstlasterror{#3}{#5}{#6}}{%
+ \@namedef{mscref#3}{\relax}%
+ \expandafter\def\csname reftext#3\endcsname{#4}%
+ \ifthenelse{\equal{true}{\msc@instisfat{#5}}}%
+ {%
+ \setlength{\tmp@X}{\msc@instlxpos{#5}-#1}%
+ }%
+ {%
+ \setlength{\tmp@X}{\msc@instxpos{#5}-#1}%
+ }%
+ \expandafter\edef\csname refulx#3\endcsname{\the\tmp@X}%
+ \expandafter\edef\csname refuly#3\endcsname{\the\msc@currentheight}%
+ \ifthenelse{\equal{true}{\msc@instisfat{#6}}}%
+ {%
+ \setlength{\tmp@X}{\msc@instrxpos{#6}+#2}%
+ }%
+ {%
+ \setlength{\tmp@X}{\msc@instxpos{#6}+#2}%
+ }%
+ \expandafter\edef\csname reflrx#3\endcsname{\the\tmp@X}%
+ \expandafter\edef\csname reflry#3\endcsname{undefined}%
+ \expandafter\def\csname reffirst#3\endcsname{#5}%
+ \expandafter\def\csname reffinal#3\endcsname{#6}%
+ % two additional instances are defined
+ \msc@declinst{#3left}{\relax}{\relax}{\the\instbarwidth}% left of reference
+ \msc@setinstxpos{#3left}{\msc@refulx{#3}}%
+ \msc@setinstlxpos{#3left}{\msc@refulx{#3}}%
+ \msc@setinstrxpos{#3left}{\msc@refulx{#3}}%
+ \msc@setinstypos{#3left}{undefined}% no instance line drawing
+ \msc@declinst{#3right}{\relax}{\relax}{\the\instbarwidth}% left of reference
+ \msc@setinstxpos{#3right}{\msc@reflrx{#3}}%
+ \msc@setinstlxpos{#3right}{\msc@reflrx{#3}}%
+ \msc@setinstrxpos{#3right}{\msc@reflrx{#3}}%
+ \msc@setinstypos{#3right}{undefined}% no instance line drawing
+ }%
+ }%
+ }%
+ }{% nickname #3 already defined
+ \msc@nicknamedefinederr{#3}%
+ }%
+}
+%
+% \msc@refulx gets the upper-left x-position of reference with nickname #1.
+\def\msc@refulx#1{%
+ \expandafter\@ifundefined{mscref#1}{%
+ \msc@refundefinederr{#1}}{% else, #1 is defined
+ \csname refulx#1\endcsname%
+ }%
+}
+%
+% \msc@refuly gets the upper-left y-position of reference with nickname #1.
+\def\msc@refuly#1{%
+ \expandafter\@ifundefined{mscref#1}{%
+ \msc@refundefinederr{#1}}{% else, #1 is defined
+ \csname refuly#1\endcsname%
+ }%
+}
+%
+% \msc@reflrx gets the lower-right x-position of reference with nickname #1.
+\def\msc@reflrx#1{%
+ \expandafter\@ifundefined{mscref#1}{%
+ \msc@refundefinederr{#1}}{% else, #1 is defined
+ \csname reflrx#1\endcsname%
+ }%
+}
+%
+% \msc@reflry gets the lower-right y-position of reference with nickname #1.
+\def\msc@reflry#1{%
+ \expandafter\@ifundefined{mscref#1}{%
+ \msc@refundefinederr{#1}}{% else, #1 is defined
+ \csname reflry#1\endcsname%
+ }%
+}
+%
+% \msc@reftext gets the text of reference with nickname #1
+\def\msc@reftext#1{%
+ \expandafter\@ifundefined{mscref#1}{%
+ \msc@refundefinederr{#1}}{% else, #1 is defined
+ \csname reftext#1\endcsname%
+ }%
+}
+%
+% \msc@reftext gets the nickname of the first instance of the reference with nickname #1
+\def\msc@reffirst#1{%
+ \expandafter\@ifundefined{mscref#1}{%
+ \msc@refundefinederr{#1}}{% else, #1 is defined
+ \csname reffirst#1\endcsname%
+ }%
+}
+%
+% \msc@reftext gets the nickname of the final instance of the reference with nickname #1
+\def\msc@reffinal#1{%
+ \expandafter\@ifundefined{mscref#1}{%
+ \msc@refundefinederr{#1}}{% else, #1 is defined
+ \csname reffinal#1\endcsname%
+ }%
+}
+%
+% \msc@drawreference completes the reference with nickname #1
+\def\msc@drawreference#1{%
+ \expandafter\@ifundefined{mscref#1}{%
+ \msc@refundefinederr{#1}}{% else, #1 is defined
+ \expandafter\edef\csname reflry#1\endcsname{\the\msc@currentheight}%
+ \setlength{\tmp@Xa}{\msc@refulx{#1}}%
+ \setlength{\tmp@Ya}{\msc@refuly{#1}}%
+ \setlength{\tmp@Xb}{\msc@reflrx{#1}}%
+ \setlength{\tmp@Yb}{\msc@reflry{#1}}%
+%% Debug info:
+% \typeout{(\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)}%
+ \psframe[dimen=middle,framearc=0.25](\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)% note: rounded corners
+ \setlength{\tmp@X}{\tmp@Xb-\tmp@Xa}%
+ \setlength{\tmp@Y}{\tmp@Yb-\tmp@Ya}%
+ \rput(\tmp@Xa,-\tmp@Ya){%
+ \rput[B](.5\tmp@X,-.5\tmp@Y){\raisebox{-.5ex}{\makebox[0pt][c]{\msc@reftext{#1}}}}%
+ }%
+ }%
+}
+%
+\def\msc@reffindfirst#1#2{%
+ \ifthenelse{\value{tmpcnt} < \value{mscinstcnt}}{%
+% Debug info:
+% \typeout{(drawtoref) checking \msc@instnickname{tmpcnt}}%
+ \ifthenelse{\equal{\msc@instnickname{tmpcnt}}{\msc@reffirst{#1}}}{% first instance found
+% Debug info:
+% \typeout{first found: \msc@instnickname{tmpcnt}}%
+ #2{#1}}{% else, keep on looking
+ \msc@incrcounter{tmpcnt}%
+ \msc@reffindfirst{#1}{#2}}}{% done ! all instances checked
+ }%
+}
+%
+\def\msc@drawtorefaux#1{%
+ \ifthenelse{\value{tmpcnt} < \value{mscinstcnt}}{%
+% Debug info:
+% \typeout{(drawtorefaux) checking \msc@instnickname{tmpcnt}}%
+ \msc@drawinstanceline{\msc@instnickname{tmpcnt}}%
+ \msc@setinstypos{\msc@instnickname{tmpcnt}}{undefined}%
+ \ifthenelse{\equal{\msc@instnickname{tmpcnt}}{\msc@reffinal{#1}}}{% final instance found
+% Debug info:
+% \typeout{final found: \msc@instnickname{tmpcnt}}%
+ }{% else, non-final
+ \msc@incrcounter{tmpcnt}%
+ \msc@drawtorefaux{#1}}%
+ }{% done ! all instances checked
+ }%
+}
+%
+\def\msc@refresetypos#1#2{%
+ \ifthenelse{\value{tmpcnt} < \value{mscinstcnt}}{%
+% Debug info:
+% \typeout{(drawtorefaux) checking \msc@instnickname{tmpcnt}}
+ \msc@setinstypos{\msc@instnickname{tmpcnt}}{#1}%
+ \ifthenelse{\equal{\msc@instnickname{tmpcnt}}{\msc@reffinal{#2}}}{% final instance found
+% Debug info:
+% \typeout{final found: \msc@instnickname{tmpcnt}}%
+ }{% else, non-final
+ \msc@incrcounter{tmpcnt}%
+ \msc@refresetypos{#1}{#2}}%
+ }{% done ! all instances checked
+ }%
+}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% CO-REGIONS
+%
+% \coregionstart starts a coregion on instance #1 (nickname) in the current level.
+\def\coregionstart#1{\regionstart{coregion}{#1}}
+% \coregionend ends a coregion on instance #1 (nickname) in the current level.
+\def\coregionend#1{\regionend{#1}}%
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% REGIONS (normal, coregion, suspension, and activation)
+%
+%
+% \regionstart{#1}{#2}
+% starts a region
+% #1: region style: normal, coregion, suspension, or activation
+% #2: nickname: nick name of the instance
+\def\regionstart#1#2{%
+ \expandafter\@ifundefined{mscinst#2}{%
+ \msc@instundefinederr{#2}}{% else, #2 is defined
+ \msc@drawinstanceline{#2}%
+ \msc@setinstregionstyle{#2}{#1}%
+ \msc@drawregionstart{#2}%
+ }%
+}
+%
+% \regionend{#1}
+% ends the region of instance with nickname #1
+\def\regionend#1{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \msc@drawinstanceline{#1}%
+ \msc@drawregionend{#1}%
+ \msc@setinstregionstyle{#1}{normal}%
+ }%
+}
+%
+%
+\def\msc@drawregionstart#1{%
+ \setlength{\tmp@Y}{\msc@currentheight}%
+ \ifthenelse{\equal{\msc@instisfat{#1}}{true}}
+ {%
+ \setlength{\tmp@Xa}{\msc@instlxpos{#1}}%
+ \setlength{\tmp@Xb}{\msc@instrxpos{#1}}%
+ \psline(\tmp@Xa,-\tmp@Y)(\tmp@Xb,-\tmp@Y)%
+ }
+ {%
+ \setlength{\tmp@Xa}{-.5\regionbarwidth+\msc@instxpos{#1}}%
+ \setlength{\tmp@Xb}{.5\regionbarwidth+\msc@instxpos{#1}}%
+ \psline(\tmp@Xa,-\tmp@Y)(\tmp@Xb,-\tmp@Y)%
+ }
+ \msc@setinstypos{#1}{\the\tmp@Y}%
+}
+%
+%
+\def\msc@drawregionend#1{%
+ \setlength{\tmp@Y}{\msc@currentheight}%
+ \ifthenelse{\equal{\msc@instisfat{#1}}{true}}
+ {%
+ \setlength{\tmp@Xa}{\msc@instlxpos{#1}}%
+ \setlength{\tmp@Xb}{\msc@instrxpos{#1}}%
+ \psline(\tmp@Xa,-\tmp@Y)(\tmp@Xb,-\tmp@Y)%
+ }
+ {\setlength{\tmp@Xa}{-.5\regionbarwidth+\msc@instxpos{#1}}%
+ \setlength{\tmp@Xb}{.5\regionbarwidth+\msc@instxpos{#1}}%
+ \psline(\tmp@Xa,-\tmp@Y)(\tmp@Xb,-\tmp@Y)%
+ }
+ \msc@setinstypos{#1}{\the\tmp@Y}%
+}
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% MESSAGE ARROWS
+%
+% \messarrowscale sets the arrow scale
+\def\messarrowscale#1{\psset{arrowscale=#1}}
+%
+% \msc@setleveloffset sets the internal level offset
+\def\msc@setleveloffset#1{%
+ \def\msc@leveloffset{#1}%
+}
+
+% \mess has one optional argument to define the position of
+% the label of a self message.
+\newcommand{\mess}{%
+ \@ifstar%
+ {\def\mess@style{mess}\def\mess@linestyle{dashed}\mess@A}{\def\mess@style{mess}\def\mess@linestyle{solid}\mess@A}%
+}%
+%
+\newcommand{\mess@A}[2][l]{%
+ \def\selfmess@position{#1}%
+ \def\mess@labeltext{#2}%
+ \mess@B%
+}%
+\newcommand{\mess@B}[2][\ifx\mess@sender\mess@receiver \selfmess@position\else t\fi]{%
+ \def\mess@labelposition{#1}%
+ \def\mess@sender{#2}%
+ \mess@C%
+}
+\newcommand{\mess@C}[2][0.5]{%
+ \def\mess@labelplacement{#1}%
+ \def\mess@receiver{#2}%
+ \mess@D%
+}
+\newcommand{\mess@D}[1][\ifx\mess@sender\mess@receiver 1\else 0\fi]{%
+ \edef\mess@leveloffset{#1}%
+ \mess@E%
+}
+\newcommand{\mess@E}[1][0\mscunit]{%
+ \edef\mess@instanceoffset{#1}%
+ \msc@drawarrow%
+}
+\newcommand{\msc@drawarrow}{%
+ \expandafter\@ifundefined{mscinst\mess@sender}{%
+ \msc@instundefinederr{\mess@sender}}{% else, sender is defined
+ \expandafter\@ifundefined{mscinst\mess@receiver}{%
+ \msc@instundefinederr{\mess@receiver}}{% else, receiver is defined
+ \ifx\mess@sender\mess@receiver\msc@drawselfarrow\else\msc@drawnonselfarrow\fi%
+ }%
+ }%
+}
+\newcommand{\msc@drawselfarrow}{%
+ \ifthenelse{\equal{\selfmess@position}{l} \or%
+ \equal{\selfmess@position}{r}%
+ }{%
+ \ifthenelse{\equal{\selfmess@position}{l}}%
+ {%
+ \setlength{\tmp@Xa}{\msc@instlxpos{\mess@sender} - \selfmesswidth}%
+ \setlength{\tmp@Xb}{\tmp@Xa}%
+ }{% ELSE
+ \setlength{\tmp@Xa}{\msc@instrxpos{\mess@sender} + \selfmesswidth}%
+ \setlength{\tmp@Xb}{\tmp@Xa}%
+ }%
+ \setlength{\tmp@Ya}{\msc@currentheight}%
+ \setlength{\tmp@Yb}{\msc@currentheight + (\levelheight * \mess@leveloffset)}%
+ \msc@computelabelcoords%
+ \msc@computelabelspec%
+ \rput[\msc@labelrefpoint](\tmp@X,-\tmp@Y){\msc@labelbox{\mess@labeltext}}%
+ \ifthenelse{\equal{\selfmess@position}{l}}%
+ {%
+ \setlength{\tmp@Xa}{\msc@instlxpos{\mess@sender}}%
+ \setlength{\tmp@Xc}{\msc@instlxpos{\mess@sender} - \mess@instanceoffset}%
+ }{% ELSE
+ \setlength{\tmp@Xa}{\msc@instrxpos{\mess@sender}}%
+ \setlength{\tmp@Xc}{\msc@instrxpos{\mess@sender} + \mess@instanceoffset}%
+ }%
+ \ifthenelse{\equal{\mess@style}{mess}}%
+ {% THEN message arrow
+ \psline[linestyle=\mess@linestyle]{->}%
+ (\tmp@Xa,-\tmp@Ya)%
+ (\tmp@Xb,-\tmp@Ya)%
+ (\tmp@Xb,-\tmp@Yb)%
+ (\tmp@Xc,-\tmp@Yb)%
+ }{% ELSE order arrow
+ \setlength{\tmp@Yd}{.5\tmp@Yb + .5\tmp@Ya}%
+ \psline[linestyle=\mess@linestyle]{->}%
+ (\tmp@Xa,-\tmp@Ya)%
+ (\tmp@Xb,-\tmp@Ya)%
+ (\tmp@Xb,-\tmp@Yd)%
+ \psline[linestyle=\mess@linestyle]%
+ (\tmp@Xb,-\tmp@Yd)%
+ (\tmp@Xb,-\tmp@Yb)%
+ (\tmp@Xc,-\tmp@Yb)%
+ }%
+ }{% ELSE
+ \msc@illegalselfmesspositionerr{\selfmess@position}%
+ }%
+}
+\newcommand{\msc@drawnonselfarrow}{%
+ \ifthenelse{\lengthtest{\msc@instxpos{\mess@sender} < \msc@instxpos{\mess@receiver}}}%
+ {\setlength{\tmp@Xa}{\msc@instrxpos{\mess@sender}}%
+ \setlength{\tmp@Xb}{\msc@instlxpos{\mess@receiver}}%
+ \addtolength{\tmp@Xb}{-\mess@instanceoffset}}%
+ {\setlength{\tmp@Xa}{\msc@instlxpos{\mess@sender}}%
+ \setlength{\tmp@Xb}{\msc@instrxpos{\mess@receiver}}%
+ \addtolength{\tmp@Xb}{\mess@instanceoffset}}%
+ \setlength{\tmp@Ya}{\msc@currentheight}%
+ \setlength{\tmp@Yb}{\msc@currentheight + (\levelheight * \mess@leveloffset)}%
+ \msc@computelabelcoords%
+ \msc@computelabelspec%
+ \ifthenelse{\equal{\mess@style}{mess}}%
+ {% THEN message arrow
+ \psline[linestyle=\mess@linestyle]{->}%
+ (\tmp@Xa,-\tmp@Ya)%
+ (\tmp@Xb,-\tmp@Yb)%
+ }{%ELSE order arrow
+ \setlength{\tmp@Xd}{.5\tmp@Xb + .5\tmp@Xa}%
+ \setlength{\tmp@Yd}{.5\tmp@Yb + .5\tmp@Ya}%
+ \psline[linestyle=\mess@linestyle]{->}%
+ (\tmp@Xa,-\tmp@Ya)%
+ (\tmp@Xd,-\tmp@Yd)%
+ \psline[linestyle=\mess@linestyle]%
+ (\tmp@Xd,-\tmp@Yd)%
+ (\tmp@Xb,-\tmp@Yb)%
+ }%
+ \rput[\msc@labelrefpoint](\tmp@X,-\tmp@Y){\msc@labelbox{\mess@labeltext}}%
+}%
+
+\newcommand{\msc@computelabelcoords}{%
+ \ifthenelse{%\equal{t}{t}%
+ \(\equal{\mess@sender}{\mess@receiver} \and \(\equal{\mess@labelposition}{l} \or%
+ \equal{\mess@labelposition}{r}\)%
+ \)%
+ \or%
+ \(\not\(\equal{\mess@sender}{\mess@receiver}\) \and \(\equal{\mess@labelposition}{t} \or%
+ \equal{\mess@labelposition}{b}\)%
+ \)%
+ }{% THEN
+ \ifthenelse{\lengthtest{\tmp@Xa<\tmp@Xb}}%
+ {% THEN
+ \ifthenelse{\lengthtest{\tmp@Ya<\tmp@Yb}}%
+ {% THEN
+ \setlength{\tmp@X}{\tmp@Xa + (\tmp@Xb - \tmp@Xa)*\real{\mess@labelplacement}}%
+ \setlength{\tmp@Y}{\tmp@Ya + (\tmp@Yb - \tmp@Ya)*\real{\mess@labelplacement}}%
+ }{% ELSE
+ \setlength{\tmp@X}{\tmp@Xa + (\tmp@Xb - \tmp@Xa)*\real{\mess@labelplacement}}%
+ \setlength{\tmp@Y}{\tmp@Yb + (\tmp@Ya - \tmp@Yb) + (\tmp@Yb - \tmp@Ya)*\real{\mess@labelplacement}}%
+ }%
+ }{% ELSE
+ \ifthenelse{\lengthtest{\tmp@Xa>\tmp@Xb}}%
+ {% THEN
+ \ifthenelse{\lengthtest{\tmp@Ya<\tmp@Yb}}%
+ {% THEN
+ \setlength{\tmp@X}{\tmp@Xb + (\tmp@Xa - \tmp@Xb) + (\tmp@Xb - \tmp@Xa)*\real{\mess@labelplacement}}%
+ \setlength{\tmp@Y}{\tmp@Ya + (\tmp@Yb - \tmp@Ya)*\real{\mess@labelplacement}}%
+ }{% ELSE
+ \setlength{\tmp@X}{\tmp@Xb + (\tmp@Xa - \tmp@Xb) + (\tmp@Xb - \tmp@Xa)*\real{\mess@labelplacement}}%
+ \setlength{\tmp@Y}{\tmp@Yb + (\tmp@Ya - \tmp@Yb) + (\tmp@Yb - \tmp@Ya)*\real{\mess@labelplacement}}%
+ }%
+ }{% ELSE \tmpXa = \tmp@Xb (self message)
+ \setlength{\tmp@X}{\tmp@Xa}%
+ \ifthenelse{\lengthtest{\tmp@Ya<\tmp@Yb}}%
+ {%
+ \setlength{\tmp@Y}{\tmp@Ya + (\tmp@Yb - \tmp@Ya)*\real{\mess@labelplacement}}%
+ }{%
+ \setlength{\tmp@Y}{\tmp@Yb + (\tmp@Ya - \tmp@Yb) + (\tmp@Yb - \tmp@Ya)*\real{\mess@labelplacement}}}%
+ }%
+ }%
+ }{% ELSE
+ \msc@illegalmesslabelpositionerr{\mess@labelposition}%
+ }
+}
+
+\newcommand{\msc@computelabelspec}{%
+ \ifthenelse{\lengthtest{\tmp@Xa < \tmp@Xb}}%
+ {% THEN W->E
+ \ifthenelse{\lengthtest{\tmp@Ya < \tmp@Yb}}%
+ {% THEN NW->SE
+ \ifthenelse{\equal{\mess@labelposition}{t}}%
+ {\def\msc@labelrefpoint{Bl}
+ \addtolength{\tmp@X}{\labeldist}%
+ \addtolength{\tmp@Y}{-\labeldist}%
+ }%
+ {\def\msc@labelrefpoint{tr}
+ \addtolength{\tmp@X}{-\labeldist}%
+ \addtolength{\tmp@Y}{\labeldist}%
+ }%
+ }{% ELSE
+ \ifthenelse{\lengthtest{\tmp@Ya > \tmp@Yb}}%
+ {% THEN SW -> NE
+ \ifthenelse{\equal{\mess@labelposition}{t}}%
+ {\def\msc@labelrefpoint{Br}
+ \addtolength{\tmp@X}{-\labeldist}%
+ \addtolength{\tmp@Y}{-\labeldist}%
+ }%
+ {\def\msc@labelrefpoint{tl}
+ \addtolength{\tmp@X}{\labeldist}%
+ \addtolength{\tmp@Y}{\labeldist}%
+ }%
+ }{% ELSE W->E
+ \ifthenelse{\equal{\mess@labelposition}{t}}%
+ {\def\msc@labelrefpoint{B}
+ \addtolength{\tmp@X}{0\labeldist}%
+ \addtolength{\tmp@Y}{-\labeldist}%
+ }%
+ {\def\msc@labelrefpoint{t}
+ \addtolength{\tmp@X}{0\labeldist}%
+ \addtolength{\tmp@Y}{\labeldist}%
+ }%
+ }%
+ }%
+ }{% ELSE
+ \ifthenelse{\lengthtest{\tmp@Xa > \tmp@Xb}}%
+ {% THEN E -> W
+ \ifthenelse{\lengthtest{\tmp@Ya < \tmp@Yb}}%
+ {% THEN NE -> SW
+ \ifthenelse{\equal{\mess@labelposition}{t}}%
+ {\def\msc@labelrefpoint{Br}
+ \addtolength{\tmp@X}{-\labeldist}%
+ \addtolength{\tmp@Y}{-\labeldist}%
+ }%
+ {\def\msc@labelrefpoint{tl}
+ \addtolength{\tmp@X}{\labeldist}%
+ \addtolength{\tmp@Y}{\labeldist}%
+ }%
+ }{% ELSE
+ \ifthenelse{\lengthtest{\tmp@Ya > \tmp@Yb}}%
+ {% THEN SE -> NW
+ \ifthenelse{\equal{\mess@labelposition}{t}}%
+ {\def\msc@labelrefpoint{Bl}
+ \addtolength{\tmp@X}{\labeldist}%
+ \addtolength{\tmp@Y}{-\labeldist}%
+ }%
+ {\def\msc@labelrefpoint{tr}
+ \addtolength{\tmp@X}{-\labeldist}%
+ \addtolength{\tmp@Y}{\labeldist}%
+ }%
+ }{% ELSE E -> W
+ \ifthenelse{\equal{\mess@labelposition}{t}}%
+ {\def\msc@labelrefpoint{B}
+ \addtolength{\tmp@X}{0\labeldist}%
+ \addtolength{\tmp@Y}{-\labeldist}%
+ }%
+ {\def\msc@labelrefpoint{t}
+ \addtolength{\tmp@X}{0\labeldist}%
+ \addtolength{\tmp@Y}{\labeldist}%
+ }%
+ }
+ }
+ }{% ELSE \tmp@Xa = \tmp@Xb (self message)
+ \ifthenelse{\equal{\mess@labelposition}{l}}%
+ {\def\msc@labelrefpoint{r}
+ \addtolength{\tmp@X}{-\labeldist}%
+ \addtolength{\tmp@Y}{0\labeldist}%
+ }%
+ {\def\msc@labelrefpoint{l}
+ \addtolength{\tmp@X}{\labeldist}%
+ \addtolength{\tmp@Y}{0\labeldist}%
+ }%
+ }%
+ }%
+}%
+\newcommand{\msc@labelbox}[1]{{#1}}%
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% Genralized orders
+% \order[pos]{sender}{receiver}[leveloffset][instanceoffset]
+%
+\newcommand{\order}[3][l]{%
+ \def\mess@style{order}%
+ \def\mess@linestyle{dashed}%
+ \def\selfmess@position{#1}%
+ \def\mess@labelposition{\ifx\mess@sender\mess@receiver l\else t\fi}%
+ \def\mess@labeltext{\relax}%
+ \def\mess@labelplacement{0.5}%
+ \def\mess@sender{#2}%
+ \def\mess@receiver{#3}%
+ \order@B%
+}
+\newcommand{\order@B}[1][\ifx\mess@sender\mess@receiver 1\else 0\fi]{%
+ \edef\mess@leveloffset{#1}%
+ \order@C%
+}
+\newcommand{\order@C}[1][0pt]{%
+ \def\mess@instanceoffset{#1}%
+ \msc@drawarrow%
+}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% LOST and FOUND messages
+%
+% \lost[pos]{label}[labelpos]{gate}{sender}[placement]
+% \found[pos]{label}[labelpos]{gate}{sender}[placement]
+\newcommand{\lost}[1][l]{%
+ \def\lostfound@position{#1}%
+ %\def\msc@arrowdirection{->}%
+ \def\lostfound@type{lost}%
+ \def\msc@circlefillstyle{black}%
+ \lostfound@B%
+}
+\newcommand{\found}[1][l]{%
+ \def\lostfound@position{#1}%
+ %\def\msc@arrowdirection{<-}%
+ \def\lostfound@type{found}%
+ \def\msc@circlefillstyle{white}%
+ \lostfound@B%
+}
+\newcommand{\lostfound@B}[1]{%
+ \def\mess@style{mess}%
+ \def\mess@labeltext{#1}%
+ \lostfound@C%
+}
+\newcommand{\lostfound@C}[3][t]{%
+ \def\mess@labelposition{#1}%
+ \def\mess@gate{#2}%
+ \def\mess@sender{#3}%
+ \lostfound@D%
+}
+\newcommand{\lostfound@D}[1][0.5]{%
+ \def\mess@labelplacement{#1}%
+ \@lostfound%
+}
+%
+% \@lostfound draws lost and found messages
+\def\@lostfound{%
+ \expandafter\@ifundefined{mscinst\mess@sender}{%
+ \msc@instundefinederr{\mess@sender}}{% else, \mess@sender is defined
+ %\setlength{\tmp@Xa}{\msc@instxpos{\mess@sender}}%
+ \setlength{\tmp@Ya}{\msc@currentheight}%
+ \ifthenelse{\equal{\lostfound@position}{l}}
+ {% THEN put lost/found message left
+ \ifthenelse{\equal{\lostfound@type}{lost}}%
+ {% THEN
+ \setlength{\tmp@Xa}% start of arrow
+ {\msc@instlxpos{\mess@sender}}%
+ \setlength{\tmp@Xb}% end of arrow
+ {\tmp@Xa-\selfmesswidth}%
+ \setlength{\tmp@X}% label position
+ {\tmp@Xb + (\tmp@Xa - \tmp@Xb) * \real{\mess@labelplacement}}%
+ \setlength{\tmp@Xc}% circle position
+ {\tmp@Xb-\lostsymbolradius}%
+ }{% ELSE
+ \setlength{\tmp@Xb}% end of arrow
+ {\msc@instlxpos{\mess@sender}}%
+ \setlength{\tmp@Xa}% start of arrow
+ {\tmp@Xb-\selfmesswidth}%
+ \setlength{\tmp@X}% label position
+ {\tmp@Xa + (\tmp@Xb - \tmp@Xa) * \real{\mess@labelplacement}}%
+ \setlength{\tmp@Xc}% circle position
+ {\tmp@Xa-\lostsymbolradius}%
+ }%
+ \setlength{\tmp@Xd}% gate position
+ {\tmp@Xc-\lostsymbolradius-\labeldist}%
+ \def\msc@gaterefpoint{r}%
+ }{% ELSE, lost/found message right
+ \ifthenelse{\equal{\lostfound@type}{lost}}%
+ {% THEN
+ \setlength{\tmp@Xa}% start of arrow
+ {\msc@instrxpos{\mess@sender}}%
+ \setlength{\tmp@Xb}% end of arrow
+ {\tmp@Xa+\selfmesswidth}%
+ \setlength{\tmp@X}% label position
+ {\tmp@Xa + (\tmp@Xb - \tmp@Xa) * \real{\mess@labelplacement}}%
+ \setlength{\tmp@Xc}% circle position
+ {\tmp@Xb+\lostsymbolradius}%
+ }{% ELSE
+ \setlength{\tmp@Xb}% end of arrow
+ {\msc@instrxpos{\mess@sender}}%
+ \setlength{\tmp@Xa}% start of arrow
+ {\tmp@Xb+\selfmesswidth}%
+ \setlength{\tmp@X}% label position
+ {\tmp@Xb + (\tmp@Xa - \tmp@Xb) * \real{\mess@labelplacement}}%
+ \setlength{\tmp@Xc}% circle position
+ {\tmp@Xa+\lostsymbolradius}%
+ }%
+ \setlength{\tmp@Xd}% gate position
+ {\tmp@Xc+\lostsymbolradius+\labeldist}%
+ \def\msc@gaterefpoint{l}%
+ }%
+ \psline{->}(\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Ya)%
+ \ifthenelse{\equal{\mess@labelposition}{t}}%
+ {% THEN
+ \setlength{\tmp@Y}{\tmp@Ya-\lostsymbolradius-\labeldist}%
+ \def\msc@labelrefpoint{B}%
+ }{% ELSE
+ \ifthenelse{\equal{\mess@labelposition}{b}}%
+ {% THEN
+ \setlength{\tmp@Y}{\tmp@Ya+\lostsymbolradius+\labeldist}%
+ \def\msc@labelrefpoint{t}%
+ }{% ELSE
+ \msc@illegallostfoundlabelpositionerr{\mess@labelposition}%
+ }%
+ }%
+ \rput[\msc@labelrefpoint](\tmp@X,-\tmp@Y){\mess@labeltext}%
+ \pscircle[fillstyle=solid,fillcolor=\msc@circlefillstyle]%
+ (\tmp@Xc,-\tmp@Ya){\lostsymbolradius}
+ \rput[\msc@gaterefpoint](\tmp@Xd,-\tmp@Ya){\mess@gate}%
+ }%
+}
+%
+%
+% \settimer has one optional argument to define the position of
+% the label of a self message.
+\newcommand{\settimer}[1][l]{%
+ \msc@settimerpos{#1}%
+ \@timer{set}%
+}
+%
+%
+% \timeout has one optional argument to define the position of
+% the label of a self message.
+\newcommand{\timeout}[1][l]{%
+ \msc@settimerpos{#1}%
+ \@timer{timeout}%
+}
+%
+%
+% \stoptimer has one optional argument to define the position of
+% the label of a self message.
+\newcommand{\stoptimer}[1][l]{%
+ \msc@settimerpos{#1}%
+ \@timer{stop}%
+}
+%
+%
+% \settimeout has one optional argument to define the position of
+% the label of a self message.
+\newcommand{\settimeout}[1][l]{%
+ \msc@settimerpos{#1}%
+ \@timerdispatcher{settimeout}%
+}
+%
+%
+% \setstoptimer has one optional argument to define the position of
+% the label of a self message.
+\newcommand{\setstoptimer}[1][l]{%
+ \msc@settimerpos{#1}%
+ \@timerdispatcher{setstoptimer}%
+}
+\def\@timerdispatcher#1#2#3{%
+ \@ifnextchar[{\@oargtimerdispatcher{#1}{#2}{#3}}{\@nooargtimerdispatcher{#1}{#2}{#3}}}
+%
+\def\@oargtimerdispatcher#1#2#3[#4]{%
+ \msc@setleveloffset{#4}%
+ \@timer{#1}{#2}{#3}%
+}
+%
+\def\@nooargtimerdispatcher#1#2#3{%
+ \msc@setleveloffset{2}% default level-offset value for combined timers
+ \@timer{#1}{#2}{#3}%
+}
+%
+%
+% \@timer draws timers
+% #1: type of the timer (set/timeout/stop)
+% #2: label
+% #3: nickname of the instance
+\def\@timer#1#2#3{%
+ \expandafter\@ifundefined{mscinst#3}{%
+ \msc@instundefinederr{#3}}{% else, #3 is defined
+ \setlength{\tmp@Xa}{\msc@instxpos{#3}}%
+ \setlength{\tmp@Ya}{\msc@currentheight}%
+ \ifthenelse{\equal{\msc@timerpos}{l}}{% point left of axis
+ \ifthenelse{\equal{\msc@instisfat{#3}}{true}}{%
+ \setlength{\tmp@Xa}{\msc@instlxpos{#3}}%
+ }{%
+ \relax%
+ }%
+ \setlength{\tmp@Xb}{\tmp@Xa-\selfmesswidth}%
+ }{ % else point right of axis
+ \ifthenelse{\equal{\msc@instisfat{#3}}{true}}{%
+ \setlength{\tmp@Xa}{\msc@instrxpos{#3}}%
+ }{%
+ \relax%
+ }%
+ \setlength{\tmp@Xb}{\tmp@Xa+\selfmesswidth}%
+ }%
+ \ifthenelse{\equal{#1}{timeout}}{% draw an arrow
+ \psline{<-}(\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Ya)%
+ }{ % else draw a line without arrow head
+ \psline(\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Ya)%
+ }%
+ \setlength{\tmp@X}{\tmp@Xb}% This looks clumsy - sm
+ \setlength{\tmp@Y}{\tmp@Ya}%
+ \msc@drawtimer{#1}{\tmp@X}{\tmp@Y}{\msc@timerpos}{#2}%
+ \ifthenelse{\equal{#1}{settimeout}}{% draw second part of settimeout
+ \setlength{\tmp@Ya}{\tmp@Y+\levelheight*\msc@leveloffset}%
+ \setlength{\tmp@Y}{\tmp@Y+0.75\timerwidth}%
+ \setlength{\tmp@Xa}{\msc@instxpos{#3}}%
+ \ifthenelse{\equal{\msc@timerpos}{l}}{% point left of axis
+ \ifthenelse{\equal{\msc@instisfat{#3}}{true}}{%
+ \setlength{\tmp@Xa}{\msc@instlxpos{#3}}%
+ }{%
+ \relax%
+ }%
+ }{ % else point right of axis
+ \ifthenelse{\equal{\msc@instisfat{#3}}{true}}{%
+ \setlength{\tmp@Xa}{\msc@instrxpos{#3}}%
+ }{%
+ \relax%
+ }%
+ }
+ \psline{->}(\tmp@X,-\tmp@Y)(\tmp@X,-\tmp@Ya)(\tmp@Xa,-\tmp@Ya)%
+ }{ % else not settimeout
+ \ifthenelse{\equal{#1}{setstoptimer}}{% draw second part of setstoptimer
+ \setlength{\tmp@Ya}{\tmp@Y+\levelheight*\msc@leveloffset}%
+ \setlength{\tmp@Y}{\tmp@Y+0.75\timerwidth}%
+ \setlength{\tmp@Xb}{\msc@instxpos{#3}}%
+ \ifthenelse{\equal{\msc@instisfat{#3}}{true}}{%
+ \ifthenelse{\equal{\msc@timerpos}{l}}{% point left of axis
+ \setlength{\tmp@Xb}{\msc@instlxpos{#3}}%
+ }{% point right of axis
+ \setlength{\tmp@Xb}{\msc@instrxpos{#3}}%
+ }%
+ }{% not a fat instance
+ \relax%
+ }
+ \psline(\tmp@X,-\tmp@Y)(\tmp@X,-\tmp@Ya)(\tmp@Xb,-\tmp@Ya)%
+ \setlength{\tmp@Y}{\tmp@Ya}%
+ \msc@drawtimer{stop}{\tmp@X}{\tmp@Y}{\msc@timerpos}{}%
+ }{ % else no second part needed
+ }%
+ }%
+ }%
+}
+%
+% \msc@drawtimer draws the timer symbols
+% #1: type of the timer (set/timeout/stop)
+% #2: x-coordinate of center of timer
+% #3: y-coordinate of center of timer
+% #4: place text left (l) or right (r)
+% #5: text added to the timer
+\def\msc@drawtimer#1#2#3#4#5{%
+ \setlength{\tmp@Xa}{#2-0.5\timerwidth}%
+ \setlength{\tmp@Xb}{#2+0.5\timerwidth}%
+ \ifthenelse{\equal{#1}{stop}}{% draw reset symbol
+ \setlength{\tmp@Ya}{-#3+0.5\timerwidth}%
+ \setlength{\tmp@Yb}{-#3-0.5\timerwidth}%
+ \psline(\tmp@Xa,\tmp@Ya)(\tmp@Xb,\tmp@Yb)%
+ \psline(\tmp@Xb,\tmp@Ya)(\tmp@Xa,\tmp@Yb)%
+ }{% else draw set/timeout symbol
+ \setlength{\tmp@Ya}{-#3+0.75\timerwidth}%
+ \setlength{\tmp@Yb}{-#3-0.75\timerwidth}%
+ \psline(\tmp@Xa,\tmp@Ya)(\tmp@Xb,\tmp@Yb)%
+ (\tmp@Xa,\tmp@Yb)(\tmp@Xb,\tmp@Ya)(\tmp@Xa,\tmp@Ya)%
+ }%
+ \ifthenelse{\equal{#4}{l}}{% place label left
+ \setlength{\tmp@Xa}{#2-\labeldist-0.3ex}%
+ \setlength{\tmp@Ya}{-#3-0.5ex}%
+ \rput[B](\tmp@Xa,\tmp@Ya){\makebox[0pt][r]{#5}}
+ }{% else place label right
+ \setlength{\tmp@Xa}{#2+\labeldist+0.3ex}%
+ \setlength{\tmp@Ya}{-#3-0.5ex}%
+ \rput[B](\tmp@Xa,\tmp@Ya){\makebox[0pt][l]{#5}}%
+ }%
+}
+%
+%
+% \msc@drawinstancehead draws the head of the instance
+% #1: nickname of the instance
+\def\msc@drawinstancehead#1{%
+ \setlength{\tmp@Y}{\msc@currentheight}%
+ \msc@drawinstanceheadsymbol{#1}{\the\tmp@Y}%
+}
+%
+% \msc@drawinstanceheadsymbol draw the head symbol of instance #1 at y-pos #2
+\def\msc@drawinstanceheadsymbol#1#2{%
+ \setlength{\tmp@X}{\msc@instxpos{#1}}% x-center head box
+ \setlength{\tmp@Y}{#2 + 0.5\instheadheight}% center of head symbol
+ \setlength{\tmp@Xa}{-0.5\instwidth+\tmp@X}% x-upperleft head box
+ \setlength{\tmp@Ya}{#2}% y-upperleft head box
+ \setlength{\tmp@Xb}{\tmp@Xa+\instwidth}% x-lowerright head box
+ \setlength{\tmp@Yb}{#2 + \instheadheight}% y-lowerright head box
+ \ifthenelse{\equal{\msc@insthead}{yes}}{%
+ \psframe[dimen=middle,linestyle=\msc@instlinestyle{#1}](\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)%
+ }{% else, no head symbol drawing%
+ }
+ \rput[B](\tmp@X,-\tmp@Ya){\raisebox{\labeldist}{\makebox[0pt][c]{\msc@instabname{#1}}}}%
+ \rput[B](\tmp@X,-\tmp@Y){\raisebox{-.5ex}{\makebox[0pt][c]{\msc@instinname{#1}}}}%
+}
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\def\msc@drawinstanceline#1{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ \ifthenelse{\equal{\msc@instypos{#1}}{undefined}}{% y-pos undefined: no line needed
+ }{% else
+ \setlength{\tmp@Ya}{\msc@instypos{#1}}%
+ \setlength{\tmp@Yb}{\msc@currentheight}%
+ \ifthenelse{\equal{true}{\msc@instisfat{#1}}}%
+ {% fat instance
+ \setlength{\tmp@Xa}{\msc@instlxpos{#1}}%
+ \setlength{\tmp@Xb}{\msc@instrxpos{#1}}%
+ \ifthenelse{\equal{\msc@instregionstyle{#1}}{coregion}}
+ {%
+ \psline[linestyle=dashed](\tmp@Xa,-\tmp@Ya)(\tmp@Xa,-\tmp@Yb)%
+ \psline[linestyle=dashed](\tmp@Xb,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)%
+ }
+ {\ifthenelse{\equal{\msc@instregionstyle{#1}}{suspension}}
+ {%
+ \psline[linestyle=dashed,dash=7pt 7pt](\tmp@Xa,-\tmp@Ya)(\tmp@Xa,-\tmp@Yb)%
+ \psline[linestyle=dashed,dash=7pt 7pt](\tmp@Xb,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)%
+ }
+ {\ifthenelse{\equal{\msc@instregionstyle{#1}}{activation}}
+ {%
+ \psframe[dimen=middle,fillstyle=solid,fillcolor=lightgray](\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)
+ \psline[linestyle=solid](\tmp@Xa,-\tmp@Ya)(\tmp@Xa,-\tmp@Yb)%
+ \psline[linestyle=solid](\tmp@Xb,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)%
+ }
+ {% normal region:
+ \psline[linestyle=solid](\tmp@Xa,-\tmp@Ya)(\tmp@Xa,-\tmp@Yb)%
+ \psline[linestyle=solid](\tmp@Xb,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)%
+ }
+ }
+ }
+ }
+ {% normal instance (not fat)
+ \setlength{\tmp@X}{\msc@instxpos{#1}}%
+ \ifthenelse{\equal{\msc@instregionstyle{#1}}{coregion}}
+ {%
+ \psline[linestyle=dashed](\tmp@X,-\tmp@Ya)(\tmp@X,-\tmp@Yb)%
+ }
+ {\ifthenelse{\equal{\msc@instregionstyle{#1}}{suspension}}
+ {%
+ \setlength{\tmp@X}{\regionbarwidth}
+ \setlength{\tmp@Xa}{\msc@instxpos{#1} - 0.5\tmp@X}%
+ \setlength{\tmp@Xb}{\msc@instxpos{#1} + 0.5\tmp@X}%
+ \psline[linestyle=dashed,dash=7pt 7pt](\tmp@Xa,-\tmp@Ya)(\tmp@Xa,-\tmp@Yb)%
+ \psline[linestyle=dashed,dash=7pt 7pt](\tmp@Xb,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)%
+ }
+ {\ifthenelse{\equal{\msc@instregionstyle{#1}}{activation}}
+ {%
+ \setlength{\tmp@X}{\regionbarwidth}
+ \setlength{\tmp@Xa}{\msc@instxpos{#1} - 0.5\tmp@X}%
+ \setlength{\tmp@Xb}{\msc@instxpos{#1} + 0.5\tmp@X}%
+ \psframe[dimen=middle,fillstyle=solid,fillcolor=lightgray](\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)
+ \psline[linestyle=solid](\tmp@Xa,-\tmp@Ya)(\tmp@Xa,-\tmp@Yb)%
+ \psline[linestyle=solid](\tmp@Xb,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)%
+ }
+ {% normal region
+ \psline[linestyle=\msc@instlinestyle{#1}](\tmp@X,-\tmp@Ya)(\tmp@X,-\tmp@Yb)%
+ }
+ }
+ }
+ }%
+ }%
+ }%
+}%
+%
+% \msc@drawinstancefoot draws the last level and foot of the instance
+% #1: nickname of the instance
+\def\msc@drawinstancefoot#1{%
+ \setlength{\tmp@Y}{\msc@currentheight}%
+ \msc@drawinstancefootsymbol{#1}{\the\tmp@Y}%
+}
+%
+% \msc@drawinstancefootsymbol draws a footer symbol for instance #1 at y-pos #2.
+\def\msc@drawinstancefootsymbol#1#2{%
+ \setlength{\tmp@Xa}{-0.5\instwidth+\msc@instxpos{#1}}%
+ \setlength{\tmp@Ya}{\msc@currentheight}%
+ \setlength{\tmp@Xb}{\tmp@Xa+\instwidth}%
+ \setlength{\tmp@Yb}{#2 + \instfootheight}%
+ \ifthenelse{\equal{\msc@instfoot}{yes}}{
+ \psframe[dimen=middle,fillstyle=solid,fillcolor=\msc@instfootcolor{#1},linestyle=\msc@instlinestyle{#1}](\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)%
+ }{% else, no foot symbol drawing%
+ }
+}
+%
+% \nextlevel incresaes \msc@currentheight by #1 * \levelheight
+% (optional) #1: a nonnegative integer number (defaults to 1)
+%
+\newcommand{\nextlevel}[1][1]{%
+ \addtolength{\msc@currentheight}{#1\levelheight}%
+}
+%
+\def\msc@drawinstancefooters{%
+ \ifthenelse{\value{tmpcnt} < \value{mscinstcnt}}{%
+ % Only draw the instancefoot if the instypos is defined (not ``undefined'')
+ % This signals a previous instance stop.
+ \ifthenelse{\equal{\msc@instypos{\msc@instnickname{tmpcnt}}}{undefined}}{\relax}{%
+ \msc@drawinstanceline{\msc@instnickname{tmpcnt}}%
+ \msc@drawinstancefoot{\msc@instnickname{tmpcnt}}%
+ }%
+ \msc@incrcounter{tmpcnt}%
+ \msc@drawinstancefooters}{% else nothing
+ }%
+}%
+%
+% \action puts an action symbol on the instance with nickname #2.
+% The action symbol will be placed on the current level and the text #1
+% is centered inside the action symbol.
+\def\action#1#2{%
+ \expandafter\@ifundefined{mscinst#2}{%
+ \msc@instundefinederr{#2}}{% else, #2 is defined
+ % first, draw the instance line as far as possible
+ \msc@drawinstanceline{#2}%
+ % then, draw the action symbol
+ % if #2's bar width is greater than the action width, the width of this
+ % action will be the instnce bar width.
+ \ifthenelse{\lengthtest{\msc@instbarwidth{#2}<\actionwidth}}%
+ {\setlength{\tmp@X}{\actionwidth}}%
+ {\setlength{\tmp@X}{\msc@instbarwidth{#2}}}%
+ \setlength{\tmp@Xa}{\msc@instxpos{#2}-0.5\tmp@X}%
+ \setlength{\tmp@Xb}{\tmp@Xa+\tmp@X}%
+ \setlength{\tmp@Ya}{\msc@currentheight}%
+ \setlength{\tmp@Yb}{\tmp@Ya+\actionheight}%
+ \psframe[dimen=middle](\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)%
+ \setlength{\tmp@X}{\msc@instxpos{#2}}%
+ \setlength{\tmp@Y}{\tmp@Ya+0.5\actionheight}%
+ \rput[B](\tmp@X,-\tmp@Y){\raisebox{-.5ex}{\makebox[0pt][c]{#1}}}%
+ % redefine the instance's y position
+ \setlength{\tmp@Y}{\msc@currentheight+\actionheight}%
+ \msc@setinstypos{#2}{\the\tmp@Y}%
+ }%
+}
+%
+% \stop ends the instance with nickname #1.
+\def\stop#1{%
+ \expandafter\@ifundefined{mscinst#1}{%
+ \msc@instundefinederr{#1}}{% else, #1 is defined
+ % first, draw the instance line as far as possible
+ \msc@drawinstanceline{#1}%
+ \setlength{\tmp@Yb}{\msc@currentheight}%
+ % close the instance axis if it is a fat instance
+ \ifthenelse{\equal{true}{\msc@instisfat{#1}}}%
+ {%
+ \setlength{\tmp@Xa}{\msc@instlxpos{#1}}%
+ \setlength{\tmp@Xb}{\msc@instrxpos{#1}}%
+ \psline(\tmp@Xa,-\tmp@Yb)(\tmp@Xb,-\tmp@Yb)%
+ }%
+ {% else it is not fat
+ }%
+ % then, draw the stop symbol
+ \setlength{\tmp@X}{\msc@instxpos{#1}}%
+ \setlength{\tmp@Xa}{\tmp@X-0.5\stopwidth}%
+ \setlength{\tmp@Xb}{\tmp@X+0.5\stopwidth}%
+ \setlength{\tmp@Ya}{\tmp@Yb+0.5\stopwidth}%
+ \setlength{\tmp@Yb}{\tmp@Yb-0.5\stopwidth}%
+ \psline(\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)%
+ \psline(\tmp@Xb,-\tmp@Ya)(\tmp@Xa,-\tmp@Yb)%
+ % redefine the instance's y position
+ % ``undefined'' means that the instance axis will not be drawn any further
+ \msc@setinstypos{#1}{undefined}%
+ }%
+}
+%
+%
+% \condition puts a condition symbol over the given instances
+% #1: name to be put inside the condition symbol
+% #2: comma-separated list of instance nicknames, such that:
+% - The first instance nickname is supposed to be the leftmost
+% instance of the condition
+% - The last instance nickname is supposed to be the rightmost
+% instance of the condition
+\def\condition#1#2{%
+ \def\msc@conditiontext{#1}%
+ \def\msc@firstconditioninst{undefined}%
+ \def\msc@lastconditioninst{undefined}%
+ \msc@condition{#2}%
+% debugging info:
+% \message{(msc: condition: \msc@firstconditioninst...\msc@lastconditioninst)}%
+ \ifthenelse{\equal{\msc@instisfat{\msc@firstconditioninst}}{true}}{%
+ \setlength{\tmp@Xa}{\msc@instlxpos{\msc@firstconditioninst}-\conditionoverlap}%
+ }{%
+ \setlength{\tmp@Xa}{\msc@instxpos{\msc@firstconditioninst}-\conditionoverlap}%
+ }%
+ \setlength{\tmp@Ya}{\msc@currentheight}%
+ \ifthenelse{\equal{\msc@instisfat{\msc@lastconditioninst}}{true}}{%
+ \setlength{\tmp@Xb}{\msc@instrxpos{\msc@lastconditioninst}+\conditionoverlap}%
+ }{%
+ \setlength{\tmp@Xb}{\msc@instxpos{\msc@lastconditioninst}+\conditionoverlap}%
+ }%
+ \setlength{\tmp@Yb}{\tmp@Ya+\conditionheight}%
+ \msc@drawcondition{#1}{\tmp@Xa}{\tmp@Ya}{\tmp@Xb}{\tmp@Yb}%
+}
+%
+\def\msc@condition#1{%
+ \@for\msccondition@rg:=#1\do{%
+ \expandafter\@ifundefined{mscinst\msccondition@rg}{%
+ \msc@instundefinederr{\msccondition@rg}}{% else, \msccondition@rg is defined
+% debugging info:
+% \message{(msc: condition instance "\msccondition@rg")}%
+ \ifthenelse{\equal{\msc@firstconditioninst}{undefined}}{%
+ \edef\msc@firstconditioninst{\msccondition@rg}%
+ }{\ifthenelse{\lengthtest{\msc@instxpos{\msc@firstconditioninst} > \msc@instxpos{\msccondition@rg}}}{%
+ \edef\msc@firstconditioninst{\msccondition@rg}}{}%
+ }%
+ \ifthenelse{\equal{\msc@lastconditioninst}{undefined}}{%
+ \edef\msc@lastconditioninst{\msccondition@rg}%
+ }{\ifthenelse{\lengthtest{\msc@instxpos{\msc@lastconditioninst} < \msc@instxpos{\msccondition@rg}}}{%
+ \edef\msc@lastconditioninst{\msccondition@rg}}{}%
+ }
+ % now, draw the instance line as far as possible
+ \msc@drawinstanceline{\msccondition@rg}%
+ % \setlength{\tmp@X}{\msc@instxpos{\msccondition@rg}}%
+ % \setlength{\tmp@Ya}{\msc@instypos{\msccondition@rg}}%
+ % \setlength{\tmp@Yb}{\msc@currentheight+\msc@headoffset}%
+ % \psline[linestyle=\msc@instlinestyle{\msccondition@rg}](\tmp@X,-\tmp@Ya)(\tmp@X,-\tmp@Yb)%
+ % and redefine the instance's y position
+ \setlength{\tmp@Y}{\msc@currentheight+\conditionheight}%
+ \msc@setinstypos{\msccondition@rg}{\the\tmp@Y}%
+ }%
+ }%
+}
+%
+% \msc@drawcondition draw the condition symbol
+% #1: condition-text
+\def\msc@drawcondition#1#2#3#4#5{%
+ \setlength{\tmp@Xc}{#4+ .6#5 - .6#3}%
+ \setlength{\tmp@Yc}{.5#3 + .5#5}%
+ \psline(#2,-#3)(#4,-#3)(\tmp@Xc,-\tmp@Yc)(#4,-#5)%
+ \setlength{\tmp@Xc}{#2- .6#5 + .6#3}%
+ \psline(#4,-#5)(#2,-#5)(\tmp@Xc,-\tmp@Yc)(#2,-#3)%
+ \setlength{\tmp@Xc}{.5#2 + .5#4}%
+ \setlength{\tmp@Yc}{.5#3 + .5#5}%
+ \rput[B](\tmp@Xc,-\tmp@Yc){\raisebox{-.5ex}{\makebox[0pt][c]{#1}}}%
+}
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% GATES
+% \gate[hpos][vpos]{text}{nickname}[h-offset]
+% \gate*[hpos][vpos]{text}{nickname}[h-offset]
+% (starred version puts a dot at the position of the gate on the instance line)
+%
+% hpos: optional horizontal position argument l(eft) or r(ight). default: l
+% vpos: optional vertical position argument t(op), c(enter) or b(ottom). default: t
+% text: text to be placed at the gate
+% nickname: nickname of the instance to which the gate belongs
+%
+\def\gate{\@ifstar{\def\msc@gatestar{defined}\msc@gateh}{\def\msc@gatestar{undefined}\msc@gateh}}
+\newcommand{\msc@gateh}[1][l]{%
+ \def\msc@gatehpos{#1}%
+ \msc@gatev%
+}
+%
+\newcommand{\msc@gatev}[3][t]{%
+ \msc@gate{#1}{#2}{#3}%
+}
+%
+\def\msc@gate#1#2#3{%
+ \expandafter\@ifundefined{mscinst#3}{%
+ \msc@instundefinederr{#3}}{% else, #3 is defined
+ \ifthenelse{\equal{\msc@instisfat{#3}}{true}}
+ {\ifthenelse{\equal{\msc@gatehpos}{l}}
+ {\setlength{\tmp@X}{\msc@instlxpos{#3}}}
+ {\setlength{\tmp@X}{\msc@instrxpos{#3}}}
+ }%
+ {\setlength{\tmp@X}{\msc@instxpos{#3}}}
+ \ifthenelse{\equal{\msc@gatestar}{defined}}{%
+ \setlength{\tmp@Y}{\msc@currentheight}%
+ \pscircle[fillstyle=solid,fillcolor=black](\tmp@X,-\tmp@Y){.5mm}}{}%
+ \ifthenelse{\equal{t}{#1}}{
+ \setlength{\tmp@Y}{\msc@currentheight - \labeldist}%
+ \def\msc@gatetext{{#2}}%
+ }{%
+ \ifthenelse{\equal{c}{#1}}{%
+ \setlength{\tmp@Y}{\msc@currentheight}%
+ \def\msc@gatetext{\raisebox{-.5\totalheight}{#2}}%
+ }{%
+ \setlength{\tmp@Y}{\msc@currentheight + \labeldist}%
+ \def\msc@gatetext{\raisebox{-\totalheight}{#2}}%
+ }}%
+ \ifthenelse{\equal{l}{\msc@gatehpos}}{%
+ \addtolength{\tmp@X}{-\labeldist}%
+ \rput[B](\tmp@X,-\tmp@Y){\makebox[0pt][r]{\msc@gatetext}}}%
+ {%
+ \addtolength{\tmp@X}{\labeldist}%
+ \rput[B](\tmp@X,-\tmp@Y){\makebox[0pt][l]{\msc@gatetext}}%
+ }%
+ }
+}
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% MSC COMMENTS
+%
+%
+% \msccomment[#1]{#2}{#3}
+% #1: position l/r or a distance
+% #2: text
+% #3: instance nick name
+\newcommand{\msccomment}[3][l]{%
+ \expandafter\@ifundefined{mscinst#3}{%
+ \msc@instundefinederr{#3}}
+ {% else, #3 is defined
+ \ifthenelse{\equal{#1}{l}}%
+ {\setlength{\msc@commentdist}{-\msccommentdist}}%
+ {\ifthenelse{\equal{#1}{r}}%
+ {\setlength{\msc@commentdist}{\msccommentdist}}%
+ {\setlength{\msc@commentdist}{#1}}%
+ }
+ \savebox{\tmp@box}{\raisebox{\depth}[\totalheight][0pt]{#2}}%
+ \setlength{\tmp@Y}{\msc@currentheight}%
+ \setlength{\tmp@Ya}{\tmp@Y + .5\ht\tmp@box}%
+ \addtolength{\tmp@Ya}{\labeldist}%
+ \setlength{\tmp@Yb}{\tmp@Y - .5\ht\tmp@box}%
+ \addtolength{\tmp@Yb}{-\labeldist}%
+% \message{( a: \the\tmp@Ya, b: \the\tmp@Yb)}
+ \ifthenelse{\lengthtest{\msc@commentdist < 0pt}}%
+ {% comment left from instance #3
+ \setlength{\tmp@X}{\msc@instlxpos{#3}}
+ \setlength{\tmp@Xa}{\tmp@X + \msc@commentdist}
+ \psline(\tmp@X,-\tmp@Y)(\tmp@Xa,-\tmp@Y)
+ \psline(\tmp@Xa,-\tmp@Ya)(\tmp@Xa,-\tmp@Yb)
+ \setlength{\tmp@Xb}{\wd\tmp@box}
+ \setlength{\tmp@Xb}{\tmp@Xa - \tmp@Xb}
+ \addtolength{\tmp@Xb}{-\labeldist}
+ \psline(\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Ya)
+ \psline(\tmp@Xa,-\tmp@Yb)(\tmp@Xb,-\tmp@Yb)
+ \addtolength{\tmp@Xa}{-\labeldist}
+ \rput[r](\tmp@Xa,-\tmp@Y){#2}%
+ }%
+ {% comment right from instance #3
+ \setlength{\tmp@X}{\msc@instrxpos{#3}}
+ \setlength{\tmp@Xa}{\tmp@X + \msc@commentdist}
+ \psline(\tmp@X,-\tmp@Y)(\tmp@Xa,-\tmp@Y)
+ \psline(\tmp@Xa,-\tmp@Ya)(\tmp@Xa,-\tmp@Yb)
+ \setlength{\tmp@Xb}{\wd\tmp@box}
+ \setlength{\tmp@Xb}{\tmp@Xa + \tmp@Xb}
+ \addtolength{\tmp@Xb}{\labeldist}
+ \psline(\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Ya)
+ \psline(\tmp@Xa,-\tmp@Yb)(\tmp@Xb,-\tmp@Yb)
+ \addtolength{\tmp@Xa}{\labeldist}
+ \rput[l](\tmp@Xa,-\tmp@Y){\usebox{\tmp@box}}
+ }%
+ }%
+}
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% MSC MARKS
+%
+% \mark[#1]{#2}{#3}
+% #1: placement: tl,bl,tr,br
+% #2: text
+% #3: instance nick name
+%
+\newcommand{\mscmark}[3][tl]{%
+ \expandafter\@ifundefined{mscinst#3}{%
+ \msc@instundefinederr{#3}}
+ {% else, #3 is defined
+ \savebox{\tmp@box}{\raisebox{\depth}[\totalheight][0pt]{#2}}
+ \ifthenelse{\equal{#1}{tl}}
+ {%tl:
+ \setlength{\tmp@X}{\msc@instlxpos{#3}}
+ \setlength{\tmp@Xa}{\tmp@X - \markdist}
+ \setlength{\tmp@Xb}{\tmp@Xa - \wd\tmp@box - 2\labeldist}
+ \setlength{\tmp@Y}{\msc@currentheight}
+ \setlength{\tmp@Ya}{\msc@currentheight - .5\markdist}
+ \psline[linestyle=dashed](\tmp@X,-\tmp@Y)(\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Ya)
+ \setlength{\tmp@Xb}{\tmp@Xa - \labeldist - .5\wd\tmp@box}
+ \addtolength{\tmp@Ya}{-\labeldist}
+ \rput[b](\tmp@Xb,-\tmp@Ya){\usebox{\tmp@box}}
+ }{
+ \ifthenelse{\equal{#1}{bl}}
+ {%tl:
+ \setlength{\tmp@X}{\msc@instlxpos{#3}}
+ \setlength{\tmp@Xa}{\tmp@X - \markdist}
+ \setlength{\tmp@Xb}{\tmp@Xa - \wd\tmp@box - 2\labeldist}
+ \setlength{\tmp@Y}{\msc@currentheight}
+ \setlength{\tmp@Ya}{\msc@currentheight + .5\markdist}
+ \psline[linestyle=dashed](\tmp@X,-\tmp@Y)(\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Ya)
+ \setlength{\tmp@Xb}{\tmp@Xa - \labeldist - .5\wd\tmp@box}
+ \addtolength{\tmp@Ya}{-\labeldist}
+ \rput[b](\tmp@Xb,-\tmp@Ya){\usebox{\tmp@box}}
+ }{
+ \ifthenelse{\equal{#1}{tr}}
+ {%bl:
+ \setlength{\tmp@X}{\msc@instrxpos{#3}}
+ \setlength{\tmp@Xa}{\tmp@X + \markdist}
+ \setlength{\tmp@Xb}{\tmp@Xa + \wd\tmp@box + 2\labeldist}
+ \setlength{\tmp@Y}{\msc@currentheight}
+ \setlength{\tmp@Ya}{\msc@currentheight - .5\markdist}
+ \psline[linestyle=dashed](\tmp@X,-\tmp@Y)(\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Ya)
+ \setlength{\tmp@Xb}{\tmp@Xa + \labeldist + .5\wd\tmp@box}
+ \addtolength{\tmp@Ya}{-\labeldist}
+ \rput[b](\tmp@Xb,-\tmp@Ya){\usebox{\tmp@box}}
+ }{
+ \ifthenelse{\equal{#1}{br}}
+ {%tl:
+ \setlength{\tmp@X}{\msc@instrxpos{#3}}
+ \setlength{\tmp@Xa}{\tmp@X + \markdist}
+ \setlength{\tmp@Xb}{\tmp@Xa + \wd\tmp@box + 2\labeldist}
+ \setlength{\tmp@Y}{\msc@currentheight}
+ \setlength{\tmp@Ya}{\msc@currentheight + .5\markdist}
+ \psline[linestyle=dashed](\tmp@X,-\tmp@Y)(\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Ya)
+ \setlength{\tmp@Xb}{\tmp@Xa + \labeldist + .5\wd\tmp@box}
+ \addtolength{\tmp@Ya}{-\labeldist}
+ \rput[b](\tmp@Xb,-\tmp@Ya){\usebox{\tmp@box}}
+ }{
+ \msc@illegalmarkplacement{#1}
+ }}}}}
+}
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% MSC MEASURES
+%
+%
+\newlength{\msc@measuredist}% internal length for horizontal measure distance
+% \measure[*][#1]{#2}{#3}{#4}[#5]
+% *: the starred version puts the top measure mark above and the bottom measure mark
+% below the measure position.
+% #1: placement: l (left) r (right), or distance (negative or positive) to closest of #3 or #4
+% #2: name
+% #3: instance nick name
+% #4: instance nick name
+% #5: (vertical) offset
+\newcommand{\measure}{%
+ \@ifstar{\def\msc@innermeasure{false}\msc@measureargs}
+ {\def\msc@innermeasure{true}\msc@measureargs}%
+}
+%
+\newcommand{\msc@measureargs}[4][l]{%
+ \def\msc@i{#1}%
+ \def\msc@ii{#2}%
+ \def\msc@iii{#3}%
+ \def\msc@iv{#4}%
+ \msc@measureoffset%
+}
+
+\newcommand{\msc@measureoffset}[1][1]{%
+ \def\msc@mscv{#1}%
+ \msc@measure{\msc@i}{\msc@ii}{\msc@iii}{\msc@iv}{\msc@mscv}
+}
+
+\newcommand{\msc@measure}[5]{%
+ \ifthenelse{\equal{#1}{l}}
+ {\setlength{\msc@measuredist}{-\measuredist}}
+ {\ifthenelse{\equal{#1}{r}}
+ {\setlength{\msc@measuredist}{\measuredist}}
+ {\setlength{\msc@measuredist}{#1}}}
+ %
+ \setlength{\tmp@Ya}{\msc@currentheight}
+ \setlength{\tmp@Yb}{\tmp@Ya + #5\levelheight}
+ \setlength{\tmp@Y}{.5\tmp@Ya + .5\tmp@Yb}
+ \ifthenelse{\lengthtest{\msc@instxpos{#3} < \msc@instxpos{#4}}}
+ {%
+ \ifthenelse{\lengthtest{\msc@measuredist < 0pt}}
+ {% left from instances
+ \setlength{\tmp@Xa}{\msc@instlxpos{#3}}
+ \setlength{\tmp@Xb}{\msc@instlxpos{#4}}
+ \setlength{\tmp@X}{\tmp@Xa + \msc@measuredist}
+ }
+ {% right from instances
+ \setlength{\tmp@Xa}{\msc@instrxpos{#3}}
+ \setlength{\tmp@Xb}{\msc@instrxpos{#4}}
+ \setlength{\tmp@X}{\tmp@Xb + \msc@measuredist}
+ }
+ }
+ {%
+ \ifthenelse{\lengthtest{\msc@measuredist < 0pt}}
+ {% left from instances
+ \setlength{\tmp@Xa}{\msc@instlxpos{#3}}
+ \setlength{\tmp@Xb}{\msc@instlxpos{#4}}
+ \setlength{\tmp@X}{\tmp@Xb + \msc@measuredist}
+ }
+ {% right from instances
+ \setlength{\tmp@Xa}{\msc@instrxpos{#3}}
+ \setlength{\tmp@Xb}{\msc@instrxpos{#4}}
+ \setlength{\tmp@X}{\tmp@Xa + \msc@measuredist}
+ }
+ }
+ \psline[linestyle=dashed](\tmp@Xa,-\tmp@Ya)(\tmp@X,-\tmp@Ya)(\tmp@X,-\tmp@Yb)(\tmp@Xb,-\tmp@Yb)
+ \ifthenelse{\lengthtest{\msc@measuredist < 0pt}}
+ {% left from instances
+ \addtolength{\tmp@X}{-\labeldist}
+ \rput[r](\tmp@X,-\tmp@Y){\raisebox{\depth}[\totalheight][0pt]{#2}}
+ \addtolength{\tmp@X}{\labeldist}
+ }
+ {% right from instances
+ \addtolength{\tmp@X}{\labeldist}
+ \rput[l](\tmp@X,-\tmp@Y){\raisebox{\depth}[\totalheight][0pt]{#2}}
+ \addtolength{\tmp@X}{-\labeldist}
+ }
+ \ifthenelse{\equal{\msc@innermeasure}{true}}
+ {%
+ \msc@measuresymbolup{\tmp@X}{\tmp@Ya}
+ \msc@measuresymboldown{\tmp@X}{\tmp@Yb}
+ }
+ {%
+ \msc@measuresymboldown{\tmp@X}{\tmp@Ya}
+ \msc@measuresymbolup{\tmp@X}{\tmp@Yb}
+ }
+}
+%
+%
+% \measurestart[*][#1]{#2}{#3}{#4}
+% *: unstarred/starred version draws downward/upward triangle
+% #1: placement: l (left) r (right), or distance (negative or positive) to #3
+% #2: name
+% #3: instance nick name
+% #4: gate name
+\newcommand{\measurestart}{%
+ \@ifstar{\def\msc@innermeasure{false}\msc@measurestartargs}
+ {\def\msc@innermeasure{true}\msc@measurestartargs}
+}
+%
+%
+\newcommand{\msc@measurestartargs}[4][l]{%
+ \def\msc@i{#1}%
+ \def\msc@ii{#2}%
+ \def\msc@iii{#3}%
+ \def\msc@iv{#4}%
+ \msc@measurestartoffset%
+}
+
+\newcommand{\msc@measurestartoffset}[1][2]{%
+ \msc@measurestart{\msc@i}{\msc@ii}{\msc@iii}{\msc@iv}{#1}%
+}
+%
+\newcommand{\msc@measurestart}[5]{%
+ \ifthenelse{\equal{#1}{l}}
+ {\setlength{\msc@measuredist}{-\measuredist}}
+ {\ifthenelse{\equal{#1}{r}}
+ {\setlength{\msc@measuredist}{\measuredist}}
+ {\setlength{\msc@measuredist}{#1}}}
+ \setlength{\tmp@Ya}{\msc@currentheight}
+ \ifthenelse{\lengthtest{\msc@measuredist < 0pt}}
+ {% left from instance
+ \setlength{\tmp@Xa}{\msc@instlxpos{#3}}
+ \setlength{\tmp@Xb}{\tmp@Xa + \msc@measuredist}
+ \setlength{\tmp@Yb}{\tmp@Ya + #5\levelheight}
+ \setlength{\tmp@X}{\tmp@Xb - \labeldist - 0.5\measuresymbolwidth}
+ \setlength{\tmp@Y}{.5\tmp@Ya + .5\tmp@Yb}
+ \rput[r](\tmp@X,-\tmp@Y){\raisebox{\depth}[\totalheight][0pt]{#2}}
+ \setlength{\tmp@Y}{\tmp@Yb + \labeldist}
+ \rput[r](\tmp@X,-\tmp@Yb){\raisebox{\depth}[\totalheight][0pt]{#4}}
+ }
+ {% right from instance
+ \setlength{\tmp@Xa}{\msc@instrxpos{#3}}
+ \setlength{\tmp@Xb}{\tmp@Xa + \msc@measuredist}
+ \setlength{\tmp@Yb}{\tmp@Ya + #5\levelheight}
+ \setlength{\tmp@X}{\tmp@Xb + \labeldist + 0.5\measuresymbolwidth}
+ \setlength{\tmp@Y}{.5\tmp@Ya + .5\tmp@Yb}
+ \rput[l](\tmp@X,-\tmp@Y){\raisebox{\depth}[\totalheight][0pt]{#2}}
+ \setlength{\tmp@Y}{\tmp@Yb + \labeldist}
+ \rput[l](\tmp@X,-\tmp@Yb){\raisebox{\depth}[\totalheight][0pt]{#4}}
+ }
+ \psline[linestyle=dashed](\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)
+ \ifthenelse{\equal{\msc@innermeasure}{true}}
+ {\msc@measuresymbolup{\tmp@Xb}{\tmp@Ya}}
+ {\msc@measuresymboldown{\tmp@Xb}{\tmp@Ya}}
+ \rput(\tmp@Xb,-\tmp@Yb){\pscircle[fillcolor=white,fillstyle=solid](0,0){.5\measuresymbolwidth}}
+ }
+%
+% \measureend[*][#1]{#2}{#3}{#4}
+% *: unstarred/starred version draws upward/downward triangle
+% #1: placement: l (left) r (right), or distance (negative or positive) to #3
+% #2: name
+% #3: instance nick name
+% #4: gate name
+\newcommand{\measureend}{%
+ \@ifstar{\def\msc@innermeasure{false}\msc@measureendargs}%
+ {\def\msc@innermeasure{true}\msc@measureendargs}%
+}
+%
+\newcommand{\msc@measureendargs}[4][l]{%
+ \def\msc@i{#1}%
+ \def\msc@ii{#2}%
+ \def\msc@iii{#3}%
+ \def\msc@iv{#4}%
+ \msc@measureendoffset%
+}
+%
+\newcommand{\msc@measureendoffset}[1][2]{%
+ \msc@measureend{\msc@i}{\msc@ii}{\msc@iii}{\msc@iv}{#1}%
+}
+%
+\newcommand{\msc@measureend}[5]{%
+ \ifthenelse{\equal{#1}{l}}
+ {\setlength{\msc@measuredist}{-\measuredist}}
+ {\ifthenelse{\equal{#1}{r}}
+ {\setlength{\msc@measuredist}{\measuredist}}
+ {\setlength{\msc@measuredist}{#1}}}
+ \setlength{\tmp@Ya}{\msc@currentheight}
+ \ifthenelse{\lengthtest{\msc@measuredist < 0pt}}
+ {% left from instance
+ \setlength{\tmp@Xa}{\msc@instlxpos{#3}}
+ \setlength{\tmp@Xb}{\tmp@Xa + \msc@measuredist}
+ \setlength{\tmp@Yb}{\tmp@Ya - #5\levelheight}
+ \setlength{\tmp@X}{\tmp@Xb - \labeldist - 0.5\measuresymbolwidth}
+ \setlength{\tmp@Y}{.5\tmp@Ya + .5\tmp@Yb}
+ \rput[r](\tmp@X,-\tmp@Y){\raisebox{\depth}[\totalheight][0pt]{#2}}
+ \setlength{\tmp@Y}{\tmp@Yb - \labeldist}
+ \rput[r](\tmp@X,-\tmp@Yb){\raisebox{\depth}[\totalheight][0pt]{#4}}
+ }
+ {% right from instance
+ \setlength{\tmp@Xa}{\msc@instrxpos{#3}}
+ \setlength{\tmp@Xb}{\tmp@Xa + \msc@measuredist}
+ \setlength{\tmp@Yb}{\tmp@Ya - #5\levelheight}
+ \setlength{\tmp@X}{\tmp@Xb + \labeldist + 0.5\measuresymbolwidth}
+ \setlength{\tmp@Y}{.5\tmp@Ya + .5\tmp@Yb}
+ \rput[l](\tmp@X,-\tmp@Y){\raisebox{\depth}[\totalheight][0pt]{#2}}
+ \setlength{\tmp@Y}{\tmp@Yb - \labeldist}
+ \rput[l](\tmp@X,-\tmp@Yb){\raisebox{\depth}[\totalheight][0pt]{#4}}
+ }
+ \psline[linestyle=dashed](\tmp@Xa,-\tmp@Ya)(\tmp@Xb,-\tmp@Ya)(\tmp@Xb,-\tmp@Yb)
+ \ifthenelse{\equal{\msc@innermeasure}{true}}
+ {\msc@measuresymboldown{\tmp@Xb}{\tmp@Ya}}
+ {\msc@measuresymbolup{\tmp@Xb}{\tmp@Ya}}
+ \rput(\tmp@Xb,-\tmp@Yb){\pscircle[fillcolor=white,fillstyle=solid](0,0){.5\measuresymbolwidth}}
+ }
+%
+% measure symbols
+%
+\def\msc@measuresymbolup#1#2{%
+ % sin(pi/3) =~ 0.866025403784
+ % draw an upward triangle with 60-degree (pi/3) angles and base at (#1,#2)
+ \rput[t](#1,-#2){%
+ \begin{pspicture}(-1,0)(1,0.866025403784\measuresymbolwidth)%
+ \pstriangle[dimen=middle,fillcolor=white,fillstyle=solid](\measuresymbolwidth,0.866025403784\measuresymbolwidth)%
+ \end{pspicture}%
+ }
+}
+%
+\def\msc@measuresymboldown#1#2{%
+ % sin(pi/3) =~ 0.866025403784
+ % draw a downward triangle with 60-degree (pi/3) angles and base at (#1,#2)
+ \rput[b](#1,-#2){%
+ \begin{pspicture}(-1,0)(1,-0.866025403784\measuresymbolwidth)%
+ \pstriangle[dimen=middle,fillcolor=white,fillstyle=solid](\measuresymbolwidth,-0.866025403784\measuresymbolwidth)%
+ \end{pspicture}%
+ }
+}
+
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% \drawmscframe draws a frame of the right size around the msc
+% This command also set the value of \msc@totalsizebox
+\def\msc@drawframe{%
+ \ifthenelse{\equal{\msc@frame}{yes}}{%
+ \psframe[dimen=middle](0,0)(\msc@currentwidth,-\msc@currentheight)%
+ }{% no frame drawing
+ }%
+}
+%
+% \msckeyword is the keyword representation of msc
+\def\msckeyword{msc}
+\def\msckeywordstyle#1{\textbf{#1}}
+%
+% This keyword can be changed by the \setmsckeyword command (or by \renewcommand{\msckeyword}{...}):
+\newcommand{\setmsckeyword}[1]{\def\msckeyword{#1}}
+\newcommand{\setmsckeywordstyle}[1]{\def\msckeywordstyle{#1}}%
+%
+% Commands to switch internal options that control the drawing of header and footer symbols
+\newcommand{\drawinsthead}[1]{\def\msc@insthead{#1}}%
+\drawinsthead{yes}%
+\newcommand{\drawinstfoot}[1]{\def\msc@instfoot{#1}}%
+\drawinstfoot{yes}%
+% A similar command to control drawing of the msc-frame
+\newcommand{\drawframe}[1]{\def\msc@frame{#1}}%
+\drawframe{yes}%
+%
+%
+\def\msc@grid{no}%
+\newcommand{\showgrid}{\def\msc@grid{yes}}
+\newcommand{\nogrid}{\def\msc@grid{no}}
+
+
+\def\msc@settitle{%
+\MSC@settitle{msc}%
+ {0\mscunit}%
+ {-\msc@totalheight}%
+ {\msc@totalwidth}%
+ {0\mscunit}%
+ {\msc@titlejustification}%
+ {\msckeywordstyle{\msckeyword}{} \msc@title}%
+}
+
+%
+% \msc@title stores the title given in \begin{msc}{title}
+\def\msc@title{}%
+%
+% \msc@titlejustification says how the title should be justified
+% Justification is relative to the total width of the msc
+% l: left (default)
+% c: centered
+% r: right
+%
+\newsavebox{\mscbox}%
+%
+% the msc-environment
+\newenvironment{msc}[2][l]{%
+\message{(\msckeyword: '#2'}%
+\def\msc@titlejustification{#1}%
+\def\msc@title{#2}%
+\setcounter{mscinstcnt}{0}%
+\setlength{\msc@currentheight}{\topheaddist}%
+\addtolength{\msc@currentheight}{\instheadheight}%
+\addtolength{\msc@currentheight}{\firstlevelheight}%
+\setlength{\msc@currentwidth}{0pt}%
+% define the artificial left and right environment instances
+\msc@declinst{envleft}{}{}{\the\instbarwidth}%
+\msc@setinstxpos{envleft}{0pt}%
+\msc@declinst{envright}{}{}{\the\instbarwidth}%
+\msc@setinstxpos{envright}{\envinstdist}%
+\begin{lrbox}{\mscbox}%
+\begin{pspicture}(0,0)% we draw the msc in a picture of size 0x0
+\psset{dash=4pt 4pt}% sets the hashed linestyle style
+}{%
+ \addtolength{\msc@currentheight}{\lastlevelheight}%
+ \setcounter{tmpcnt}{2}%
+ \msc@drawinstancefooters%
+% If there is at least one instance, the current width is
+% set to the xpos of the NEXT msc instance. There is at least one instance,
+% if mscinstcnt >= 2. So, in that case, we have to
+% substract one \instdist from the current width.
+%
+%\ifthenelse{\value{mscinstcnt}<2}{% no user defined instances, so, relax
+% \relax%
+%}{% mscinstcnt >= 2
+% \addtolength{\msc@currentwidth}{-\instdist}%
+%}%
+% Now we compute the final current width: one extra \envinstdist:
+\setlength{\msc@currentwidth}{\msc@instxpos{envright}}%
+\addtolength{\msc@currentheight}{\instfootheight+\bottomfootdist}%
+\msc@drawframe%
+\global\msc@totalwidth=\msc@currentwidth%
+\global\msc@totalheight=\msc@currentheight%
+\ifthenelse{\equal{\msc@grid}{yes}}{%
+ \psgrid[subgriddiv=1,griddots=10](0,0)(0,0)(\msc@currentwidth,-\msc@currentheight)%
+}{\relax}%
+\msc@settitle%
+\end{pspicture}%
+% Debug info:
+%\typeout{msc size: \the\msc@totalwidth x\the\msc@totalheight}%
+\end{lrbox}%
+% the \mscbox now contains a box of 0x0, however the actual width and
+% height are stored in \msc@total{width,height}. We use these lengths
+% to adjust the width and height of the \mscbox
+\wd\mscbox=\msc@totalwidth%
+\ht\mscbox=\msc@totalheight%
+\dp\mscbox=0pt%
+% Now the \mscbox can be scaled (by \mscscalefactor) and `printed':
+{% DEBUG: use this \fbox stuf to check the bounding box
+ \setlength{\fboxrule}{0.01pt}%
+ \setlength{\fboxsep}{1pt}%
+ \color{white}\fbox{%
+ \scalebox{\mscscalefactor}{\raisebox{\msc@totalheight}[\msc@totalheight][0pt]{\usebox{\mscbox}}}%
+ }%
+}%
+\message{)}%
+}%
+%
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\newcommand{\MSC@settitle}[7]{%
+ % #1: diagram type (msc, mscdoc, hmsc)
+ % #2: llx
+ % #3: lly
+ % #4: urx
+ % #5: ury
+ % #6: justification (l, c, r)
+ % #7: typeset title
+ \setlength{\tmp@X}{#4 - #2 - 2\leftnamedist}%
+ \ifthenelse{\equal{#6}{l}}%
+ {%
+ \def\MSC@dosettitle{\parbox[t]{\tmp@X}{\raggedright #7}}%
+ }%
+ {\ifthenelse{\equal{#6}{c}}%
+ {%
+ \def\MSC@dosettitle{\parbox[t]{\tmp@X}{\centering #7}}%
+ }%
+ {\ifthenelse{\equal{#6}{r}}%
+ {%
+ \def\MSC@dosettitle{\parbox[t]{\tmp@X}{\raggedleft #7}}%
+ }%
+ {\msc@illegaltitleplacement{#6}}%
+ }%
+ }%
+ \setlength{\tmp@Y}{#5 - \topnamedist}%
+ \setlength{\tmp@Xb}{#2 + \leftnamedist}%
+ \rput[tl](\tmp@Xb,\tmp@Y){\MSC@dosettitle}%
+}
+
+
+
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% MSC documents
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% \mscdockeyword is the keyword representation of msc
+\def\mscdockeyword{mscdoc}
+\def\mscdockeywordstyle#1{\textbf{#1}}
+%
+% This keyword can be changed by the \setmscdockeyword command (or by \renewcommand{\mscdockeyword}{...}):
+\newcommand{\setmscdockeyword}[1]{\def\mscdockeyword{#1}}
+\newcommand{\setmscdockeywordstyle}[1]{\def\mscdockeywordstyle{#1}}%
+
+\newcommand{\mscdoc@settitle}{%
+ \MSC@settitle{mscdoc}%
+ {\mscdoc@llx}%
+ {\mscdoc@lly}%
+ {\mscdoc@urx}%
+ {\mscdoc@ury}%
+ {\mscdoc@titlejustification}%
+ {\mscdockeywordstyle{\mscdockeyword}{} \mscdoc@title}%
+}
+
+\newenvironment{mscdoc}[2][l]%
+{%
+ \message{( \mscdockeyword: '#2'}%
+ \def\mscdoc@titlejustification{#1}%
+ \def\mscdoc@title{#2}%
+ \def\reference##1(##2,##3){%
+ \setlength{\tmp@X}{\mscdocreferencewidth}%
+ \setlength{\tmp@Y}{\mscdocreferenceheight}%
+ \def\txt{\vbox to \tmp@Y{\vss\hbox to \tmp@X{\hss{}##1\hss}\vss}}%
+ \rput(##2\mscunit,##3\mscunit){\psframebox[%
+ framearc=0.25,%
+ framesep=0pt,%
+ border=0pt%
+ ]{\txt}}}%
+ \def\separator##1{%
+ \psline[linestyle=dashed](\mscdoc@llx,##1)(\mscdoc@urx,##1)
+ }%
+ \def\mscdoc@sizespec(##1,##2)(##3,##4)%
+ {%
+ \def\mscdoc@llx{##1\mscunit}%
+ \def\mscdoc@lly{##2\mscunit}%
+ \def\mscdoc@urx{##3\mscunit}%
+ \def\mscdoc@ury{##4\mscunit}%
+\begin{lrbox}{\mscbox}%
+ \begin{pspicture}(\mscdoc@llx,\mscdoc@lly)(\mscdoc@urx,\mscdoc@ury)%
+ \ifthenelse{\equal{\msc@grid}{yes}}{%
+ \psgrid[subgriddiv=1,griddots=10](\mscdoc@llx,\mscdoc@lly)(\mscdoc@urx,\mscdoc@ury)%
+ }{\relax}%
+ \ifthenelse{\equal{\msc@frame}{yes}}{%
+ \psframe(\mscdoc@llx,\mscdoc@lly)(\mscdoc@urx,\mscdoc@ury)%
+ }{\relax}%
+ \mscdoc@settitle%
+ }%
+ \mscdoc@sizespec%
+}%
+{%
+ \end{pspicture}%
+\end{lrbox}%
+{% DEBUG: use this \fbox stuf to check the bounding box
+ \setlength{\fboxrule}{0.01pt}%
+ \setlength{\fboxsep}{1pt}%
+ \color{white}\fbox{%
+ \usebox{\mscbox}%
+ }%
+}%
+ \message{)}%
+}
+
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% HMSC
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+
+\RequirePackage{pst-node}
+
+
+\newcommand{\hmsckeyword}{hmsc}
+\newcommand{\hmsckeywordstyle}[1]{\textbf{#1}}
+
+% This keyword can be changed by the \sethmsckeyword command (or by \renewcommand{\hmsckeyword}{...}):
+\newcommand{\sethmsckeyword}[1]{\def\hmsckeyword{#1}}
+\newcommand{\sethmsckeywordstyle}[1]{\def\hmsckeywordstyle{#1}}%
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newif\if@ncsegline
+
+
+%
+% User command to draw a segmented line between two nodes (buggy).
+%
+% NOTE: this implementation is not complete yet. The optional arrows argument
+% only makes sense for forward arrows (and even then in a limited way).
+% usage: \ncsegline[settings]{arrows}{#1}[(x0,y0)...(xn,xy)]{#2}
+% settings (optional): pstricks settings for lines
+% arrows(optional): pstricks-style arrow defintions
+% #1: start node
+% (x0,y0)...(xn,yn) (optional): sequence of intermediate points
+% #2: end node
+\def\ncsegline{%
+ \@ifstar{\def\@nclinecommand{\ncline*}\@ncseglinei}{\def\@nclinecommand{\ncline}\@ncseglinei}%
+}
+
+\def\ncseglinecheck@arrow#1#2{%
+ \ncseglinecheck@@arrow#2-\@nil
+ \if@ncsegline%
+% \message{(arrow: `#2')}%
+ \edef\@ncseglinearrow{{#2}}%
+ \def\next{#1}%
+ \else%
+% \message{(no arrow `#2')}%
+ \edef\@ncseglinearrow{{-}}%
+ \def\next{#1{#2}}%
+ \fi%
+ \next%
+}
+
+\def\ncseglinecheck@@arrow#1-#2\@nil{%
+\ifx\@nil#2\@nil\@ncseglinefalse\else\@ncseglinetrue\fi}
+
+\def\@ncseglinei{%
+ \@ifnextchar[{\@ncseglineReadSettings}{\def\@nclinesettings{[]}\ncseglinecheck@arrow{\@ncseglineii}}%]
+}
+
+\def\@ncseglineReadSettings[#1]{%
+ \def\@nclinesettings{[#1]}%
+ \ncseglinecheck@arrow{\@ncseglineii}%
+}
+
+\def\@ncseglineii#1{%
+ \def\@ncsegargA{#1}%
+ \@ifnextchar[{\@ncseglineiii}{\@ncseglineiv}%
+}
+
+\def\@ncseglineiii[#1]#2{%
+ \@ncseglineA#1(\relax,\relax)%
+ \def\@ncsegargB{#2}%
+ \@ncseglinedraw%
+}
+
+\def\@ncseglineiv#1{%
+ \def\@ncsegargB{#1}%
+ \@ncseglinedraw%
+}
+
+\def\@ncseglinedraw{%
+ \edef\@ncseglineattrs{\@nclinesettings\@ncseglinearrow}%
+ \expandafter\@nclinecommand\@ncseglineattrs{\@ncsegargA}{\@ncsegargB}%
+}
+
+\def\@ncseglineA(#1,#2){%
+ \ifx#1\relax%
+ \def\next{\relax}%
+ \else%
+% \message{(line seg)}%
+ \pnode(#1,#2){#1#2}%
+ \expandafter\@nclinecommand\@nclinesettings{-}{\@ncsegargA}{#1#2}%
+ \edef\@ncsegargA{#1#2}%
+ \def\next{\@ncseglineA}%
+ \fi
+ \next%
+}
+
+% User command to draw hmsc start symbols
+% usage: \hmscstartsymbol{#1}(#2,#3)
+% #1: nickname
+% #2: x-coordinate
+% #3: y-coordinate
+%
+%
+% sin(pi/3) =~ 0.866025403784
+%
+\def\hmscstartsymbol#1(#2,#3){%
+ %\message{(hmsc start symbol: #1)}%
+ \setlength{\tmp@Xa}{#2\mscunit}%
+ \setlength{\tmp@Ya}{#3\mscunit}%
+ \setlength{\tmp@Xb}{\tmp@Xa}\addtolength{\tmp@Xb}{-.5\hmscstartsymbolwidth}%
+ \setlength{\tmp@Xc}{\tmp@Xa}\addtolength{\tmp@Xc}{.5\hmscstartsymbolwidth}%
+ \setlength{\tmp@Yb}{\tmp@Ya}\addtolength{\tmp@Yb}{0.866025403784\hmscstartsymbolwidth}%
+ \pspolygon(\tmp@Xa,\tmp@Ya)(\tmp@Xb,\tmp@Yb)(\tmp@Xc,\tmp@Yb)%
+ \pnode(#2,#3){#1}%
+}
+
+
+% User command to draw hmsc end symbols
+% usage: \hmscendsymbol{#1}(#2,#3)
+% #1: nickname
+% #2: x-coordinate
+% #3: y-coordinate
+%
+%
+% sin(pi/3) =~ 0.866025403784
+%
+\def\hmscendsymbol#1(#2,#3){%
+ %\message{(hmsc end symbol: #1)}%
+ \setlength{\tmp@Xa}{#2\mscunit}%
+ \setlength{\tmp@Ya}{#3\mscunit}%
+ \setlength{\tmp@Xb}{\tmp@Xa}\addtolength{\tmp@Xb}{-.5\hmscstartsymbolwidth}%
+ \setlength{\tmp@Xc}{\tmp@Xa}\addtolength{\tmp@Xc}{.5\hmscstartsymbolwidth}%
+ \setlength{\tmp@Yb}{\tmp@Ya}\addtolength{\tmp@Yb}{-0.866025403784\hmscstartsymbolwidth}%
+ \pspolygon(\tmp@Xa,\tmp@Ya)(\tmp@Xb,\tmp@Yb)(\tmp@Xc,\tmp@Yb)%
+ \pnode(#2,#3){#1}%
+}
+
+% User command to draw a hmsc condition
+% usage: \hmsccondition{#1}{#2}(#3,#4)
+% #1: nickname
+% #2: text
+% #3: x-coordinate
+% #4: y-coordinate
+\def\hmsccondition#1#2(#3,#4){%
+ \setlength{\tmp@X}{.5\hmscconditionwidth}%
+ \setlength{\tmp@Y}{.5\hmscconditionheight}%
+ \setlength{\tmp@Xa}{\tmp@X}\addtolength{\tmp@Xa}{.6\tmp@Y}%
+ \rput(#3\mscunit,#4\mscunit){%
+ \pspolygon(-\tmp@X,\tmp@Y)%
+ (\tmp@X,\tmp@Y)%
+ (\tmp@Xa,0)%
+ (\tmp@X,-\tmp@Y)%
+ (-\tmp@X,-\tmp@Y)%
+ (-\tmp@Xa,0)}%
+ \setlength{\tmp@X}{\hmscconditionwidth}%
+ \setlength{\tmp@Y}{\hmscconditionheight}%
+ \def\ctxt{\vbox to \tmp@Y{\vss\hbox to \tmp@X{\hss{}#2\hss}\vss}}%
+ \rput(#3\mscunit,#4\mscunit){\rnode{#1}{\psframebox[%
+ linestyle=none,%
+ linewidth=0pt,%
+ framesep=0pt,%
+ border=0pt%
+ ]{\ctxt}}}%
+}
+
+% User command to draw a hmsc reference
+% usage: \hmscreference{#1}{#2}(#3,#4)
+% #1: nickname
+% #2: text
+% #3: x-coordinate
+% #4: y-coordinate
+\def\hmscreference#1#2(#3,#4){%
+ \setlength{\tmp@X}{\hmscreferencewidth}%
+ \setlength{\tmp@Y}{\hmscreferenceheight}%
+ \def\rtxt{\vbox to \tmp@Y{\vss\hbox to \tmp@X{\hss{}#2\hss}\vss}}%
+ \rput(#3\mscunit,#4\mscunit){\rnode{#1}{\psframebox[%
+ framearc=0.25,%
+ framesep=0pt,%
+ border=0pt%
+ ]{\rtxt}}}%
+}
+
+% User command to draw hmsc connections
+% usage: \hmscconnection{#1}(#2,#3)
+% #1: nickname
+% #2: x-coordinate
+% #3: y-coordinate
+\def\hmscconnection#1(#2,#3){%
+ \rput(#2,#3){\circlenode[framesep=0pt]{#1}{\rule{0pt}{2\hmscconnectionradius}}}%
+}
+
+
+
+% User command to draw arrows between hmsc-objects
+% Usage: \arrow{#1}[(x0,y0)...(xn,yn)]{#2}
+% #1: start hmsc object
+% (x0,y0)...(xn,yn) (optional): sequence of intermediate points
+% #2: end hmsc object
+\newcommand{\arrow}{
+ \ncsegline{->}%
+}
+
+
+
+% User environment to draw hmsc's
+% Usage: \begin{hmsc}{#1}(llx,lly((urx,ury)...\end{hmsc}
+%
+
+
+\def\hmsc@settitle{%
+ \MSC@settitle{hmsc}%
+ {\hmsc@llx}%
+ {\hmsc@lly}%
+ {\hmsc@urx}%
+ {\hmsc@ury}%
+ {\hmsc@titlejustification}%
+ {\hmsckeywordstyle{\hmsckeyword}{} \hmsc@title}%
+% \setlength{\tmp@X}{\hmsc@llx + \leftnamedist}%
+% \setlength{\tmp@Y}{\hmsc@ury - \topnamedist}%
+% \rput[tl](\tmp@X,\tmp@Y){%
+% \hmsckeywordstyle{\hmsckeyword}{} \hmsc@title%
+% }%
+}
+
+\newenvironment{hmsc}[2][l]
+ {\message{( \hmsckeyword: '#2'}%
+ \def\hmsc@titlejustification{#1}%
+ \def\hmsc@title{#2}%
+ \hmsc@startenv}%
+ {%\setlength{\tmp@X}{\hmsc@llx}\addtolength{\tmp@X}{\leftnamedist}%
+ %\setlength{\tmp@Y}{\hmsc@ury}\addtolength{\tmp@Y}{-\topnamedist}%
+ %\rput[tl](\tmp@X,\tmp@Y){\raisebox{\depth}[\totalheight][0pt]{\hmsckeywordstyle{\hmsckeyword} \hmsc@name}}%
+ \hmsc@settitle%
+ \ifthenelse{\equal{\msc@frame}{yes}}{%
+ \psframe(\hmsc@llx,\hmsc@lly)(\hmsc@urx,\hmsc@ury)%
+ }{\relax}%
+ \end{pspicture}%
+\end{lrbox}%
+{% DEBUG: use this \fbox stuf to check the bounding box
+ \setlength{\fboxrule}{0.01pt}%
+ \setlength{\fboxsep}{1pt}%
+ \color{white}\fbox{%
+ \usebox{\mscbox}%
+ }%
+}%
+ \message{)}}%
+\def\hmsc@startenv(#1,#2)(#3,#4){%
+ \newcommand{\hmsc@llx}{#1\mscunit}%
+ \newcommand{\hmsc@lly}{#2\mscunit}%
+ \newcommand{\hmsc@urx}{#3\mscunit}%
+ \newcommand{\hmsc@ury}{#4\mscunit}%
+\begin{lrbox}{\mscbox}%
+ \begin{pspicture}(\hmsc@llx,\hmsc@lly)(\hmsc@urx,\hmsc@ury)%
+ \ifthenelse{\equal{\msc@grid}{yes}}{%
+ \psgrid[subgriddiv=1,griddots=10](\hmsc@llx,\hmsc@lly)(\hmsc@urx,\hmsc@ury)%
+ }{\relax}%
+}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% Initialisation of the msc package
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% \set@mscvalueslarge
+\def\set@mscvalueslarge{%
+ \psset{linewidth=0.8pt}
+ % the lengths
+ \setlength{\actionheight}{0.75\mscunit}
+ \setlength{\actionwidth}{1.25\mscunit}
+ \setlength{\bottomfootdist}{1\mscunit}
+ \setlength{\msccommentdist}{1.5\mscunit}
+ \setlength{\conditionheight}{0.75\mscunit}
+ \setlength{\conditionoverlap}{0.6\mscunit}
+ \setlength{\envinstdist}{2.5\mscunit}
+ \setlength{\firstlevelheight}{0.75\mscunit}
+ \setlength{\hmscconditionheight}{0.8\mscunit}
+ \setlength{\hmscconditionwidth}{1.6\mscunit}
+ \setlength{\hmscconnectionradius}{0.06\mscunit}
+ \setlength{\hmscreferenceheight}{0.8\mscunit}
+ \setlength{\hmscreferencewidth}{1.6\mscunit}
+ \setlength{\hmscstartsymbolwidth}{0.85\mscunit}
+ \setlength{\inlineoverlap}{1.5\mscunit}
+ \setlength{\instbarwidth}{0pt}
+ \setlength{\instdist}{3\mscunit}
+ \setlength{\instfootheight}{0.25\mscunit}
+ \setlength{\instheadheight}{.6\mscunit}
+ \setlength{\instwidth}{1.75\mscunit}
+ \setlength{\labeldist}{1ex}
+ \setlength{\lastlevelheight}{0.5\mscunit}
+ \setlength{\leftnamedist}{0.3\mscunit}
+ \setlength{\levelheight}{.75\mscunit}
+ \setlength{\lostsymbolradius}{.15\mscunit}
+ \setlength{\markdist}{1\mscunit}
+ \setlength{\measuredist}{0.75\mscunit}
+ \setlength{\measuresymbolwidth}{.15\mscunit}
+ \setlength{\mscdocreferenceheight}{0.8\mscunit}
+ \setlength{\mscdocreferencewidth}{1.6\mscunit}
+ \setlength{\referenceoverlap}{1.5\mscunit}
+ \setlength{\regionbarwidth}{.5\mscunit}
+ \setlength{\selfmesswidth}{.75\mscunit}
+ \setlength{\stopwidth}{0.6\mscunit}
+ \setlength{\timerwidth}{0.4\mscunit}
+ \setlength{\topheaddist}{1.5\mscunit}
+ \setlength{\topnamedist}{.3\mscunit}
+ % some numeric parameters
+ \messarrowscale{2}
+}
+%
+%
+% \set@mscvaluesnormal
+\def\set@mscvaluesnormal{%
+ \psset{linewidth=0.7pt}
+ % switch to a smaller font
+ \small%
+ % the lengths
+ \setlength{\actionheight}{0.6\mscunit}
+ \setlength{\actionwidth}{1.25\mscunit}
+ \setlength{\bottomfootdist}{0.7\mscunit}
+ \setlength{\msccommentdist}{1.1\mscunit}
+ \setlength{\conditionheight}{0.6\mscunit}
+ \setlength{\conditionoverlap}{0.5\mscunit}
+ \setlength{\envinstdist}{2\mscunit}
+ \setlength{\firstlevelheight}{0.6\mscunit}
+ \setlength{\hmscconditionheight}{0.7\mscunit}
+ \setlength{\hmscconditionwidth}{1.4\mscunit}
+ \setlength{\hmscconnectionradius}{0.05\mscunit}
+ \setlength{\hmscreferenceheight}{0.7\mscunit}
+ \setlength{\hmscreferencewidth}{1.4\mscunit}
+ \setlength{\hmscstartsymbolwidth}{0.7\mscunit}
+ \setlength{\inlineoverlap}{1\mscunit}
+ \setlength{\instbarwidth}{0pt}
+ \setlength{\instdist}{2.2\mscunit}
+ \setlength{\instfootheight}{0.2\mscunit}
+ \setlength{\instheadheight}{.55\mscunit}
+ \setlength{\instwidth}{1.6\mscunit}
+ \setlength{\labeldist}{1ex}
+ \setlength{\lastlevelheight}{0.4\mscunit}
+ \setlength{\leftnamedist}{0.2\mscunit}
+ \setlength{\levelheight}{.5\mscunit}
+ \setlength{\lostsymbolradius}{.12\mscunit}
+ \setlength{\markdist}{1\mscunit}
+ \setlength{\measuredist}{0.6\mscunit}
+ \setlength{\measuresymbolwidth}{.2\mscunit}
+ \setlength{\mscdocreferenceheight}{0.7\mscunit}
+ \setlength{\mscdocreferencewidth}{1.4\mscunit}
+ \setlength{\referenceoverlap}{1\mscunit}
+ \setlength{\regionbarwidth}{.4\mscunit}
+ \setlength{\selfmesswidth}{.6\mscunit}
+ \setlength{\stopwidth}{0.5\mscunit}
+ \setlength{\timerwidth}{0.3\mscunit}
+ \setlength{\topheaddist}{1.3\mscunit}
+ \setlength{\topnamedist}{.2\mscunit}
+ % some numeric parameters
+ \messarrowscale{1.5}
+}
+%
+% \set@mscvaluessmall
+\def\set@mscvaluessmall{%
+ \psset{linewidth=0.6pt}
+ % switch to a smaller font
+ \small%
+ % the lengths
+ \setlength{\actionheight}{0.5\mscunit}
+ \setlength{\actionwidth}{1.2\mscunit}
+ \setlength{\bottomfootdist}{0.5\mscunit}
+ \setlength{\msccommentdist}{0.75\mscunit}
+ \setlength{\conditionheight}{0.5\mscunit}
+ \setlength{\conditionoverlap}{0.4\mscunit}
+ \setlength{\envinstdist}{1.2\mscunit}
+ \setlength{\firstlevelheight}{0.4\mscunit}
+ \setlength{\hmscconditionheight}{0.6\mscunit}
+ \setlength{\hmscconditionwidth}{1.2\mscunit}
+ \setlength{\hmscconnectionradius}{0.04\mscunit}
+ \setlength{\hmscreferenceheight}{0.6\mscunit}
+ \setlength{\hmscreferencewidth}{1.2\mscunit}
+ \setlength{\hmscstartsymbolwidth}{0.4\mscunit}
+ \setlength{\inlineoverlap}{.75\mscunit}
+ \setlength{\instbarwidth}{0pt}
+ \setlength{\instdist}{1.5\mscunit}
+ \setlength{\instfootheight}{0.15\mscunit}
+ \setlength{\instheadheight}{0.5\mscunit}
+ \setlength{\instwidth}{1.2\mscunit}
+ \setlength{\labeldist}{0.8ex}
+ \setlength{\lastlevelheight}{0.3\mscunit}
+ \setlength{\leftnamedist}{0.1\mscunit}
+ \setlength{\levelheight}{0.4\mscunit}
+ \setlength{\lostsymbolradius}{.08\mscunit}
+ \setlength{\markdist}{1\mscunit}
+ \setlength{\measuredist}{0.4\mscunit}
+ \setlength{\measuresymbolwidth}{.25\mscunit}
+ \setlength{\mscdocreferenceheight}{0.6\mscunit}
+ \setlength{\mscdocreferencewidth}{1.2\mscunit}
+ \setlength{\referenceoverlap}{.75\mscunit}
+ \setlength{\regionbarwidth}{.2\mscunit}
+ \setlength{\selfmesswidth}{.4\mscunit}
+ \setlength{\stopwidth}{0.3\mscunit}
+ \setlength{\timerwidth}{0.2\mscunit}
+ \setlength{\topheaddist}{1.2\mscunit}
+ \setlength{\topnamedist}{.1\mscunit}
+ % some numeric parameters
+ \messarrowscale{1.2}
+}
+% \setmscvalues assigns compatible values to all msc-parameters
+% Currently, three sets of values are supported: large, normal
+% and small.
+\def\setmscvalues#1{%
+ \ifthenelse{\equal{#1}{large}}{%
+ \set@mscvalueslarge}{%
+ \ifthenelse{\equal{#1}{normal}}{%
+ \set@mscvaluesnormal}{%
+ \ifthenelse{\equal{#1}{small}}{%
+ \set@mscvaluessmall}{%
+ \ifthenelse{\equal{#1}{measure}}{%
+ \set@mscvaluesmeasure}{%
+ \msc@unknownmscvalueserr{#1}}}}}%
+}
+%
+% initialisation of the msc-parameters
+\setmscvalues{normal}
+\setfootcolor{black}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% Error and help messages
+% We use the standard LaTeX2e facilities to generate error and help
+% messages (for more info, see file lterror.dtx of LaTeX2e distribution).
+%
+%
+% nickname already defined
+\gdef\msc@nicknamedefinederr#1{%
+ \PackageError{msc}{% error message
+ nickname #1 already defined}{% help text
+ You tried to use the nickname '#1' for a new\MessageBreak
+ msc object (instance, reference, inline expression, etc.),\MessageBreak
+ but the nickname is already assigned to another msc object.\MessageBreak
+ press <enter> to continue (the new msc object will be ignored).}%
+}
+%
+% no such msc instance error
+\gdef\msc@instundefinederr#1{%
+ \PackageError{msc}{% error message
+ undefined msc instance: #1}{% help text
+ You used '#1' as an msc instance nickname, but\MessageBreak
+ there is no msc instance with that nickname.}%
+}
+%
+% unknown linestyle error
+\gdef\msc@unknownlinestyleerr#1{%
+ \PackageError{msc}{% error message
+ unknown linestyle: #1}{% help text
+ Known msc linestyles are "solid", "dashed", and "dotted".\MessageBreak
+ You used '#1'.}%
+}
+%
+% unknown region style error
+\gdef\msc@unknownregionstyleerr#1{%
+ \PackageError{msc}{% error message
+ unknown region style: #1}{% help text
+ Known msc region styles are "normal", "coregion", "suspension", and "activation".\MessageBreak
+ You used '#1'.}%
+}
+%
+% unknown self message label position error
+\gdef\msc@unknownselfmessposerr#1{%
+ \PackageError{msc}{% error message
+ unknown position for self message: #1}{% help text
+ Known positions are "l" (left), "r" (right).\MessageBreak
+ You used '#1'.}%
+}
+%
+% unknown self message label position error
+\gdef\msc@unknowntimerposerr#1{%
+ \PackageError{msc}{% error message
+ unknown timer position: #1}{% help text
+ Known timer positions are "l" (left), "r" (right).\MessageBreak
+ You used '#1'.}%
+}
+%
+% unknown self message label position error
+\gdef\msc@unknownmscvalueserr#1{%
+ \PackageError{msc}{% error message
+ unknown set of msc-values: #1}{% help text
+ Known sets of msc-values are "normal" and "small".\MessageBreak
+ You used '#1'.}%
+}
+%
+% no such msc reference error
+\gdef\msc@refundefinederr#1{%
+ \PackageError{msc}{% error message
+ undefined reference: #1}{% help text
+ You used '#1' as a reference nickname, but\MessageBreak
+ there is no reference with that nickname.}%
+}
+%
+% no such msc inline error
+\gdef\msc@inlundefinederr#1{%
+ \PackageError{msc}{% error message
+ undefined inline expression: #1}{% help text
+ You used '#1' as a inline expression nickname, but\MessageBreak
+ there is no inline expression with that nickname.}%
+}
+%
+% inline first right from last error
+\gdef\msc@inlfirstlasterror#1#2#3{%
+ \PackageError{msc}{% error message
+ first instance right from final instance\MessageBreak in inline expression #1}{% help text
+ In the definition of inline expression '#1', you probably switched\MessageBreak
+ the first msc instance, '#2', and the final msc instance, '#3',\MessageBreak
+ since the first is located right from the final.}%
+}
+%
+% reference first rightt from last error
+\gdef\msc@reffirstlasterror#1#2#3{%
+ \PackageError{msc}{% error message
+ first instance right from final instance\MessageBreak in reference #1}{% help text
+ In the definition of msc reference '#1', you probably switched\MessageBreak
+ the first msc instance, '#2', and the final msc instance, '#3',\MessageBreak
+ since the first is located right from the final.}%
+}
+%
+\gdef\msc@illegalmarkplacement#1{%
+ \PackageError{msc}{%
+ illegal mark placement specifier: #1}{% help text
+ The four mark placement specifiers are:\MessageBreak
+ tl (top-left)\MessageBreak
+ bl (bottom-left)\MessageBreak
+ tr (top-right)\MessageBreak
+ br (bottom-right)}
+}
+\gdef\msc@illegalmesslabelpositionerr#1{%
+ \PackageError{msc}{%
+ illegal label position specifier: #1}{% help text
+ Valid label position specifiers are:\MessageBreak
+ t (top)\MessageBreak
+ b (bottom)}
+}
+\gdef\msc@illegalselfmesspositionerr#1{%
+ \PackageError{msc}{%
+ illegal label position: #1}{% help text
+ Valid label positions are:\MessageBreak
+ t (top)\MessageBreak
+ b (bottom)\MessageBreak
+ l (left)\MessageBreak
+ r (right)}
+}
+\gdef\msc@illegallostfoundlabelpositionerr#1{%
+ \PackageError{msc}{%
+ in lost/found message: illegal label position: #1}{% help text
+ Valid label position are:\MessageBreak
+ t (top)\MessageBreak
+ b (bottom)}
+}
+%################################################################################
+%
+\gdef\msc@illegaltitleplacement#1{%
+ \PackageError{msc}{%
+ illegal title placement specifier: #1}{% help text
+ Valid title placement specifiers are:\MessageBreak
+ l (left)\MessageBreak
+ c (center)\MessageBreak
+ r (right)}
+}
+%################################################################################
+\gdef\hmsc@nicknamedefinederr#1{%
+ \PackageError{msc}{% error message
+ nickname #1 already defined}{% help text
+ You tried to use the nickname '#1' for a new\MessageBreak
+ hmsc object (startsymbol, endsymbol, reference, etc.),\MessageBreak
+ but the nickname is already assigned to another hmsc object.\MessageBreak
+ press <enter> to continue (the new hmsc object will be ignored).}%
+}
+% no such msc hmsc object error
+\gdef\hmsc@objectundefinederr#1{%
+ \PackageError{msc}{% error message
+ undefined hmsc object: #1}{% help text
+ You used '#1' as an hmsc object nickname, but\MessageBreak
+ there is no hmsc object with that nickname.}%
+}%
+% hmsc unknown connection type
+\gdef\hmsc@unknownconnectiontypeerror#1{%
+ \PackageError{msc}{% error message
+ Unknown HMSC connection type: #1}{% help text
+ Known HMSC connection types are straight, rounded, and curved.}%
+}
+%
+% hmsc missing y coordinate in arrow specification
+\gdef\hmsc@missingycoord#1#2{%
+ \PackageError{msc}{% error message
+ Missing Y coordinate in arrow specification. You typed:\MessageBreak
+ [#2]\MessageBreak
+ which is parsed as the incomplete list of points:\MessageBreak
+ #1\MessageBreak
+ Remove the final X coordinate or add an Y coordinate}{%
+ The points specifying an HMSC arrow should be given as a comma separated\MessageBreak
+ list of X, Y coordinates. Furthermore, each X coordinate should\MessageBreak
+ be followed by a Y coordinate.}%
+}
+% remarks
+%
+% Issuing pstricks drawing-commands inside a TeX-group in a pspicture environment
+% can result in ill-positioned objects.
+%
+% messages from/to the right environment should be defined after the last
+% instance is declared with \declinst
+