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% BEGIN_FOLD Drawing wires
% extends the wire of register #1. Assumes a node called yquantbox is set up, and the \pgfshapeclippathhorzresult was set up appropriately for this node.
\protected\def\yquant@circuit@extendwire#1#2{%
\begingroup%
\ifx*#2%
\edef\wirexpos{\the\dimen0}%
\else%
\pgfpointanchor{yquantbox}{#2}%
\edef\wirexpos{\the\yquant@pgf@x}%
\fi%
\ifdim\yquant@orientation@plus\wirexpos>0pt % may be negative for init gates
\yquant@register@get@typeywire{#1}\wiretype\wireypos\wirelast%
\edef\wirexprevpos{\expandafter\@firstoffour\wirelast}%
\ifnum\wiretype=\yquant@register@type@none%
% the clippings of the previous operator will for sure not be needed, but the type might be turned into an active one, so we need the last clipping.
\yquant@register@set@lastwire{#1}{%
{\wirexprevpos}{\wirexpos}{}%
{\ifyquant@config@draw@quality%
\unexpanded\expandafter{\pgfshapeclippathhorzresult}%
\fi}%
}%
\else%
% append the previous `last' clipping to the old list and insert the new one
\yquant@register@set@lastwire{#1}{%
{\wirexprevpos}{\wirexpos}%
{\unexpanded\expandafter\expandafter\expandafter{%
\expandafter\@thirdandfourthoffour\wirelast%
}%
}%
{\ifyquant@config@draw@quality%
\unexpanded\expandafter{\pgfshapeclippathhorzresult}%
\fi}%
}%
\fi%
\fi%
\endgroup%
}
% finishes the wires of all registers
\protected\def\yquant@circuit@endwires{%
\expandafter\expandafter\expandafter\yquant@register@get@maxxrange%
\expandafter\expandafter\expandafter\yquant@circuit@endwires@x%
\expandafter\expandafter\expandafter1%
\expandafter\expandafter\expandafter{\csname\yquant@prefix registers\endcsname}%
% to have a symmetric situation, we extend again one separation at the end, unless this is supposed to be seamless and we don't have outputs (for seamless circuits with outputs, extend - since this extension will be between last register and output)
\ifyquant@env@seamless{%
\expandafter\unless\expandafter\ifx\csname\yquant@prefix outputs\endcsname\relax%
\dimdef\yquant@circuit@endwires@x{%
\yquant@circuit@endwires@x\yquant@orientation@plus\yquant@config@operator@sep%
}%
\fi%
}{%
\dimdef\yquant@circuit@endwires@x{%
\yquant@circuit@endwires@x\yquant@orientation@plus\yquant@config@operator@sep%
}%
}%
\let\yquant@circuit@endwires@finalize=\relax%
\yquant@for \yquant@circuit@endwires@i := 1 to \csname\yquant@prefix registers\endcsname {%
% we only extend the wire if it does not come from the outer circuit - this one would be responsible for the extension.
\ifcsname\yquant@prefix registermap@\yquant@circuit@endwires@i\endcsname%
\xifinlistcs\yquant@circuit@endwires@i{\yquant@prefix inonly}{%
% however, the wire is to be discarded after this circuit
\ifyquanthorz{%
\edef\storedleft{\the\pgf@picminx}%
\yquant@draw@wire\yquant@circuit@endwires@i1%
\global\pgf@picminx=\storedleft%
}{%
\edef\storedtop{\the\pgf@picmaxy}%
\yquant@draw@wire\yquant@circuit@endwires@i1%
\global\pgf@picmaxy=\storedtop%
}%
\eappto\yquant@circuit@endwires@finalize{%
\yquant@register@set@type%
\yquant@circuit@endwires@i\noexpand\yquant@register@type@none%
}%
}\relax%
\else%
\yquant@draw@wire\yquant@circuit@endwires@i1%
\fi%
}%
}
% outputs the wire according to its previous instructions and prepares for a change in the wire style
\protected\def\yquant@circuit@flushwire#1{%
\yquant@draw@wire{#1}0%
\begingroup%
\yquant@register@get@lastwire{#1}\wirelast%
\yquant@register@set@lastwire{#1}{%
{\expandafter\@secondoffour\wirelast}{\expandafter\@secondoffour\wirelast}{}%
{\unexpanded\expandafter\expandafter\expandafter{%
\expandafter\@fourthoffour\wirelast%
}}%
}%
\endgroup%
}
% END_FOLD
% BEGIN_FOLD Drawing control lines
% populates a drawing macro with the current control line with style #1 at position #2. Assumes a node called yquantbox is set up, and the \pgfshapeclippathvertresult was set up appropriately for this node. At the first call, \yquant@circuit@extendcontrolline@cmd must be \let to \empty and \yquant@circuit@extendcontrolline@prev to \relax.
\protected\def\yquant@circuit@extendcontrolline#1#2{%
\ifyquant@config@draw@quality%
\eappto\yquant@circuit@extendcontrolline@clip{%
\unexpanded\expandafter{\pgfshapeclippathvertresult}%
}%
\fi%
\begingroup%
\tikzset{/yquant/every control line}%
\expandafter%
\endgroup%
\expandafter\@tempdima\the\pgflinewidth%
\ifcase#1%
% no control (or to a discarded target, which we don't do)
\or%
% qubit
\pgfpointanchor{yquantbox}{center}%
\unless\ifx\yquant@circuit@extendcontrolline@prev\relax%
\eappto\yquant@circuit@extendcontrolline@cmd{%
\expandafter\@secondofthree\yquant@circuit@extendcontrolline@prev%
-- \yquant@coords(#2,\the\yquant@pgf@y)%
}%
\fi%
\yquant@circuit@extendcontrolline@store{#2}%
\or%
% cbit
\pgfpointanchor{yquantbox}{center}%
\unless\ifx\yquant@circuit@extendcontrolline@prev\relax%
\eappto\yquant@circuit@extendcontrolline@cmd{%
\expandafter\@firstofthree\yquant@circuit@extendcontrolline@prev%
-- \yquant@coords(\the\dimexpr#2-2\@tempdima\relax,\the\yquant@pgf@y)%
\expandafter\@thirdofthree\yquant@circuit@extendcontrolline@prev%
-- \yquant@coords(\the\dimexpr#2+2\@tempdima\relax,\the\yquant@pgf@y)%
}%
\fi%
\yquant@circuit@extendcontrolline@store{#2}%
\or%
% quantum-bundle (very unusual, but perhaps for transversal operations?)
\pgfpointanchor{yquantbox}{center}%
\unless\ifx\yquant@circuit@extendcontrolline@prev\relax%
\eappto\yquant@circuit@extendcontrolline@cmd{%
\expandafter\@firstofthree\yquant@circuit@extendcontrolline@prev%
-- \yquant@coords(\the\dimexpr#2-2\@tempdima\relax,\the\yquant@pgf@y)%
\expandafter\@secondofthree\yquant@circuit@extendcontrolline@prev%
-- \yquant@coords(\the\dimexpr#2\relax,\the\yquant@pgf@y)%
\expandafter\@thirdofthree\yquant@circuit@extendcontrolline@prev%
-- \yquant@coords(\the\dimexpr#2+2\@tempdima\relax,\the\yquant@pgf@y)%
}%
\fi%
\yquant@circuit@extendcontrolline@store{#2}%
\else%
\PackageError{yquant.sty}{Invalid control line type `#1'}%
{yquant encountered an internal error.}%
\fi%
}
\protected\def\yquant@circuit@extendcontrolline@store#1{%
\edef\yquant@circuit@extendcontrolline@prev{%
{\yquant@coords(\the\dimexpr#1-2\@tempdima\relax,\the\yquant@pgf@y)}%
{\yquant@coords(\the\dimexpr#1\relax,\the\yquant@pgf@y)}%
{\yquant@coords(\the\dimexpr#1+2\@tempdima\relax,\the\yquant@pgf@y)}%
}%
}
% populates a drawing macro with the multi operation connector at position #2. Assumes a node called yquantbox is set up, and the \pgfshapeclippathvertresult was set up appropriately for this node. At the first call, \yquant@circuit@extendmultiline@cmd must be \let to \empty and \yquant@circuit@extendmultiline@prev to \relax.
\protected\def\yquant@circuit@extendmultiline#1{%
\begingroup%
\tikzset{/yquant/every multi line}%
\expandafter%
\endgroup%
\ifyquant@config@draw@quality%
\eappto\yquant@circuit@extendmultiline@clip{%
\unexpanded\expandafter{\pgfshapeclippathvertresult}%
}%
\fi%
\expandafter\@tempdima\the\pgflinewidth%
\pgfpointanchor{yquantbox}{center}%
\unless\ifx\yquant@circuit@extendmultiline@prev\relax%
\eappto\yquant@circuit@extendmultiline@cmd{%
\yquant@circuit@extendmultiline@prev -- \yquant@coords(#1,\the\yquant@pgf@y)%
}%
\fi%
\edef\yquant@circuit@extendmultiline@prev{%
\yquant@coords(\the\dimexpr#1\relax,\the\yquant@pgf@y)%
}%
}
% END_FOLD
\newif\ifyquant@circuit@operator@hasControls%
% sets up the relevant variables associated with an operator
% #1: positive controls
% #2: negative controls
% #3: targets
\protected\def\yquant@circuit@operator#1#2#3{%
% convert all names to indices
% targets
\yquant@register@get@ids{#3}%
\let\yquant@circuit@operator@targets=\yquant@register@get@ids@list%
\let\yquant@circuit@operator@mintarget=\yquant@register@get@ids@min%
\let\yquant@circuit@operator@maxtarget=\yquant@register@get@ids@max%
\let\yquant@circuit@operator@numtarget=\yquant@register@get@ids@count%
% make sure to reset this for subcircuits
\yquant@circuit@operator@hasControlsfalse%
% For the targets, multi-qubit registers might have been allowed, but certainly not for
% the controls!
\yquant@register@get@allowmultifalse%
% positive controls
\yquant@register@get@ids{#1}%
\let\yquant@circuit@operator@pctrls=\yquant@register@get@ids@list%
\let\yquant@circuit@operator@minpctrl=\yquant@register@get@ids@min%
\let\yquant@circuit@operator@maxpctrl=\yquant@register@get@ids@max%
\let\yquant@circuit@operator@numpctrl=\yquant@register@get@ids@count%
\ifnum\yquant@register@get@ids@count>0 %
\yquant@circuit@operator@hasControlstrue%
\fi%
% negative controls
\yquant@register@get@ids{#2}%
\let\yquant@circuit@operator@nctrls=\yquant@register@get@ids@list%
\let\yquant@circuit@operator@minnctrl=\yquant@register@get@ids@min%
\let\yquant@circuit@operator@maxnctrl=\yquant@register@get@ids@max%
\let\yquant@circuit@operator@numnctrl=\yquant@register@get@ids@count%
\ifnum\yquant@register@get@ids@count>0 %
\yquant@circuit@operator@hasControlstrue%
\fi%
% determine the qubits spanned
\yquant@min\yquant@circuit@operator@minctrl%
\yquant@circuit@operator@mintarget%
\yquant@circuit@operator@minpctrl%
\yquant@circuit@operator@minnctrl%
\relax%
\yquant@max\yquant@circuit@operator@maxctrl%
\yquant@circuit@operator@maxtarget%
\yquant@circuit@operator@maxpctrl%
\yquant@circuit@operator@maxnctrl%
\relax%
}
% restores the data captured for an uncontrolled operator and starts preparation
% #1: \yquant@attrs@remaining
% #2: \yquant@lang@attr@name
% #3: \yquant@circuit@operator@targets
% #4: \yquant@circuit@operator@mintarget
% #5: \yquant@circuit@operator@maxtarget
% #6: \yquant@circuit@operator@numtarget
\protected\def\yquant@circuit@restore#1#2#3#4#5#6{%
\def\yquant@attrs@remaining{#1}%
\def\yquant@lang@attr@name{#2}%
\def\yquant@circuit@operator@targets{#3}%
\def\yquant@circuit@operator@mintarget{#4}%
\def\yquant@circuit@operator@maxtarget{#5}%
\def\yquant@circuit@operator@numtarget{#6}%
\yquant@circuit@operator@hasControlsfalse%
\let\yquant@circuit@operator@pctrls=\empty%
\def\yquant@circuit@operator@minpctrl{2147483647}%
\def\yquant@circuit@operator@maxpctrl{0}%
\let\yquant@circuit@operator@numpctrl=\yquant@circuit@operator@maxpctrl%
\let\yquant@circuit@operator@nctrls=\empty%
\let\yquant@circuit@operator@minnctrl=\yquant@circuit@operator@minpctrl%
\let\yquant@circuit@operator@maxnctrl=\yquant@circuit@operator@maxpctrl%
\let\yquant@circuit@operator@numnctrl=\yquant@circuit@operator@numpctrl%
\let\yquant@circuit@operator@minctrl=\yquant@circuit@operator@mintarget%
\let\yquant@circuit@operator@maxctrl=\yquant@circuit@operator@maxtarget%
}
% creates a subcircuit. Parameter registers must be filled in \yquant@circuit@subcircuit@params.
% #1: style
\protected\def\yquant@circuit@subcircuit#1{%
\numdef\yquant@circuit@subcircuit@id{\yquant@env+1}%
\listcsxadd{\yquant@prefix subcircuits}{\yquant@circuit@subcircuit@id}%
\begingroup%
\tikzset{/yquant/every operator, #1,%
/yquant/this operator, /yquant/operators/this subcircuit box/.style={}}%
% execute the subcircuit
\expandafter%
\yquant@env@begin@noarg%
\yquant@lang@attr@value% this contains the subcircuit's content
\expandafter\unless\expandafter\ifx\csname\yquant@prefix parameters\endcsname\empty%
\PackageError{yquant.sty}{Invalid subcircuit parameters count}%
{Too many parameters given.}%
\fi%
\yquant@env@end%
\endgroup%
}
% BEGIN_FOLD Helpers for operator callbacks
% turn a wire into a different type
\def\yquant@circuit@settype#1{%
\unless\if\yquant@register@get@type{#1}\yquant@circuit@settype@to %
\yquant@circuit@flushwire{#1}%
\yquant@register@set@type{#1}{\yquant@circuit@settype@to}%
\fi%
}
\protected\def\yquant@circuit@settype@prepare#1{%
\yquant@register@set@type{#1}{\yquant@circuit@settype@to}%
}
\protected\long\def\yquant@circuit@setstyle#1#2{%
\yquant@circuit@flushwire{#1}%
\yquant@register@set@style{#1}{#2}%
}
\protected\long\def\yquant@circuit@addstyle#1#2{%
\yquant@circuit@flushwire{#1}%
\yquant@register@set@style{#1}{\yquant@register@get@style{#1},#2}%
}
% performs an alignment of all registers specified in the argument; that is, the next operation on any of the listed registers will be after the maximum position of all of them
% #1: arbitrary register list
\protected\def\yquant@circuit@align#1{%
\csxappto{\yquant@prefix draw}{%
\yquant@draw@hspace{#1}{0pt}%
}%
}
% introduces a horizontal skip (= invisible operator of given width) among the registers; that is, those registers are first aligned, then skipped by the given amount.
% #1: arbitrary register list
% #2: skip width
\protected\def\yquant@circuit@hspace#1#2{%
\csxappto{\yquant@prefix draw}{%
\yquant@draw@hspace{#1}{#2}%
}%
}
% applies an action to wires a list of registers and causes them to be redrawn
% #1: action for prepare
% #2: action for draw
% #3: arbitrary register list
% #4: parameter(s)
\protected\def\yquant@circuit@actonwires#1#2#3#4{%
\begingroup%
\let\tmp=\empty%
\def\do##1{%
% We do not extend the wire: a register that is discarded somewhere does not make
% sense, only right after some application (which is supposed to already have
% extended the wire appropriately).
\eappto\tmp{#2{##1}#4}%
#1{##1}#4%
}%
\dolistloop{#3}%
\csxappto{\yquant@prefix draw}{\tmp}%
\endgroup%
}
% sets the output of wires
% #1: arbitrary register list
\protected\def\yquant@circuit@output{%
\let\idx=\yquant@protectedempty%
\ifnum\yquant@compat>1 %
\let\Ifnum=\yquant@protectedempty%
\let\Ifcase=\yquant@protectedempty%
\let\Or=\yquant@protectedempty%
\let\Else=\yquant@protectedempty%
\let\Fi=\yquant@protectedempty%
\let\Unless=\yquant@protectedempty%
\let\The=\yquant@protectedempty%
\fi%
\protected@csxappto{\yquant@prefix outputs}%
{\yquant@circuit@restore%
{\yquant@attrs@remaining}%
{\yquant@lang@attr@name}%
{\unexpanded\expandafter{\yquant@circuit@operator@targets}}%
{\yquant@circuit@operator@mintarget}{\yquant@circuit@operator@maxtarget}%
{\yquant@circuit@operator@numtarget}%
\yquant@prepare{\yquant@lang@attr@value}{}%
}%
}
% END_FOLD
|