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%D \module
%D [ file=spec-xtx,
%D version=2004.11.08,
%D title=\CONTEXT\ Special Macros,
%D subtitle=\XETEX\ support,
%D author={Adam Lindsay \& Hans Hagen \& \unknown},
%D date=\currentdate,
%D copyright={Adam Lindsay \& Hans Hagen}]
\unprotect
\startspecials[xetex][reset,dpx]
%D Actually, there's an intermediate ``\type{xdv}''
%D output format, but by default, it's tranparently
%D converted to \PDF\ by \XETEX.
\def\jobsuffix{pdf}
%D Rotation looks fine.
\definespecial\dostartrotation#1%
{\special{x:gsave}\special{x:rotate #1}}
\definespecial\dostoprotation%
{\special{x:grestore}}
%D Scaling and mirroring are also fine.
\definespecial\dostartscaling#1#2%
{\special{x:gsave}\special{x:scale #1 #2}}
\definespecial\dostopscaling%
{\special{x:grestore}}
\definespecial\dostartmirroring%
{\special{x:gsave}\special{x:scale -1 1}}
\definespecial\dostopmirroring%
{\special{x:grestore}}
%D Colors are done with the \DVIPDFMX\ color model, which are
%D inherited.
%D Although hex colors were accommodated by Hans, we'll try the
%D more familiar \DVIPDFMX\ ones. One good side-effect of the
%D previous approach
%D was that it kept track of the color state (transparency
%D in XeTeX is accomplished setting the color to an RGBA quadruple,
%D rather than an RGB triple). So transparency will need another
%D plan.
% \macros
% {dostarttransparency,dostoptransparency}
%
% \starttypen
% \dostarttransparency{fraction}{type}
% \dostoptransparency
% \stoptypen
%
% Although in \CONTEXT\ transparency is closely integrated
% in the color drivers, in the end it is an independent
% feature.
%\installspecial [\dostarttransparency] [or] [2]
%\installspecial [\dostoptransparency] [or] [0]
%D \XETEX\ supports \type{\doPDFdestination} and
%D \type{\doPDFbookmark} inherited straight from \DVIPDFMX.
\definespecial\doinsertfile#1#2#3#4#5#6#7#8#9%
{\bgroup
\dodoinsertfile{xtx}{#1}{#2}{#3}{#4}{#5}{#6}{#7}{#8}{#9}%
\egroup}
\definefileinsertion{xtx}{jpg}{\xtxhandleotherimage}
\definefileinsertion{xtx}{png}{\xtxhandleotherimage}
\definefileinsertion{xtx}{gif}{\xtxhandleotherimage}
\definefileinsertion{xtx}{tif}{\xtxhandleotherimage}
\definefileinsertion{xtx}{pdf}{\xtxhandlepdfimage }
\def\xtxhandleotherimage#1#2#3#4#5#6#7#8#9%
{\bgroup % not needed, we load this under a normal catcode regime; \catcode`\"=11
\XeTeXpicfile "#1" width #7 height #8\relax%
\donetrue
\egroup}
\def\xtxhandlepdfimage#1#2#3#4#5#6#7#8#9%
{\bgroup % not needed, we load this under a normal catcode regime; \catcode`\"=11
\checkpdfimagepagenumber{#9}
\XeTeXpdffile "#1" \pdfimagepagenumber\space width #7 height #8 \relax%
\donetrue
\egroup}
\def\checkpdfimagepagenumber#1%
{\let\pdfimagepagenumber\empty
\getfromcommacommand[#1][1]%
\doifnumberelse\commalistelement
{\ifcase\commalistelement\else
\edef\pdfimagepagenumber{page \commalistelement}%
%\message{(pdf image \pdfimagepagenumber)}%
\fi}
{}}
% \type{\getfiguredimensionsA} calls this one.
% \type{\executedtrue} means it was able to get the desired
% dogetfiguresizeBLAH method for the image type.
% \type{\donetrue} means that the image was successfully
% measured to be more than zero points.
\def\dogetXTXfiguresize#1#2#3#4#5#6#7%
{#4\zeropoint
#5\zeropoint
\setbox\foundexternalfigure\vbox{\XeTeXpicfile "#2"}%
#6\wd\foundexternalfigure
#7\ht\foundexternalfigure
\ifdim\wd\foundexternalfigure=\zeropoint % \ifzeropt\wd\foundexternalfigure
#1{#2}{#3}{#4}{#5}{#6}{#7}%
\fi}
\def\dogetXTXpdfsize#1#2#3#4#5#6#7%
{#4\zeropoint
#5\zeropoint
\checkpdfimagepagenumber{#3}
\setbox\foundexternalfigure\vbox{\XeTeXpdffile "#2" \pdfimagepagenumber}% \relax not needed
#6\wd\foundexternalfigure
#7\ht\foundexternalfigure
\ifdim\wd\foundexternalfigure=\zeropoint % \ifzeropt\wd\foundexternalfigure
#1{#2}{#3}{#4}{#5}{#6}{#7}%
\fi}
\let\normaldogetfiguresizepng=\dogetfiguresizepng
\let\normaldogetfiguresizetif=\dogetfiguresizetif
\let\normaldogetfiguresizejpg=\dogetfiguresizejpg
\let\normaldogetfiguresizegif=\dogetfiguresizegif
\let\normaldogetfiguresizepdf=\dogetfiguresizepdf
\def\dogetfiguresizepng{\dogetXTXfiguresize\normaldogetfiguresizepng}
\def\dogetfiguresizejpg{\dogetXTXfiguresize\normaldogetfiguresizejpg}
\def\dogetfiguresizegif{\dogetXTXfiguresize\normaldogetfiguresizegif}
\def\dogetfiguresizetif{\dogetXTXfiguresize\normaldogetfiguresizetif}
\def\dogetfiguresizepdf{\dogetXTXpdfsize\normaldogetfiguresizepdf}
\appendtoksonce
\let\dogetfiguresizepng\normaldogetfiguresizepng
\let\dogetfiguresizetif\normaldogetfiguresizetif
\let\dogetfiguresizejpg\normaldogetfiguresizejpg
\let\dogetfiguresizegif\normaldogetfiguresizegif
\let\dogetfiguresizepdf\normaldogetfiguresizepdf
\to \everyresetspecials
%D The figure object system caused no end of headaches. They all
%D went away with this single line:
\setupexternalfigures[\c!object=\v!no]
\stopspecials
\protect
%\endinput
% FOR THE MOMENT HERE
\ifx\dqfontquote\undefined \else \endinput \fi
\unprotect
% actually, we can use "" in pdftex> 1.20 as well
\def\parsefontspec#1%
{\xdef\somefontspec{#1\space}%
\@EA\doparsefontspec\somefontspec\relax]% =>#1 \empty]
\donoparsefontspec}
\def\doparsefontspec#1%
{\ifx"#1%
\@EA\dodqparsefontspec
\else\ifx'#1%
\@EAEAEA\dosqparsefontspec
\else
\@EAEAEA\dodoparsefontspec
\fi\fi#1}
\def\dqfontquote{"}
\def\sqfontquote{'}
\def\dodqparsefontspec"#1"#2%
{\def\somefontname{#1}%
\let\somefontquote\dqfontquote
\ifx#2\relax\@EA\setnaturalfontspec\else\@EA\setforcedfontspec\fi#2}
\def\dosqparsefontspec'#1'#2%
{\def\somefontname{#1}%
\let\somefontquote\sqfontquote
\ifx#2\relax\@EA\setnaturalfontspec\else\@EA\setforcedfontspec\fi#2}
\def\dodoparsefontspec#1 #2%
{\def\somefontname{#1}%
\let\somefontquote\empty
\ifx\somefontname\empty % space before fontname
\@EA\doparsefontspec
\else\ifx#2\relax
\@EAEAEA\setnaturalfontspec
\else
\@EAEAEA\setforcedfontspec
\fi\fi
#2}
\def\setnaturalfontspec#1]%
{\@fs@scaled\plusthousand\relax}
\def\setforcedfontspec#1 #2\relax]%
{\csname\@fs@#1\endcsname#2\relax}
\beginXETEX \font
\def\donoparsefontspec % #1 == \cs
{\edef\fontfile{\somefontquote\truefontname\somefontname\somefontquote}%
\ifx\fontfile\s!unknown \let\fontfile\defaultfontfile \fi
\edef\lastfontname{\fontfile\somefontspec}%
\ifx\fontclass\empty
\expandafter\definefontlocal
\else
\expandafter\definefontglobal
\fi} % #1 == \cs
\endXETEX
\protect \endinput
\starttext
\definedfont[{cmr10} at 40pt] test
\definedfont['cmss10' at 40pt] test
\definedfont["cmtt10" at 40pt] test
\definedfont[{cmr10} at 40pt] test
\definedfont['cmss10' at 40pt] test
\definedfont["cmtt10" at 40pt] test
% \definedfont["Gentium" at 40pt] test
\stoptext
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