diff options
Diffstat (limited to 'tex/context/base/spec-ps.tex')
| -rw-r--r-- | tex/context/base/spec-ps.tex | 167 |
1 files changed, 89 insertions, 78 deletions
diff --git a/tex/context/base/spec-ps.tex b/tex/context/base/spec-ps.tex index 409c77e62..077e22887 100644 --- a/tex/context/base/spec-ps.tex +++ b/tex/context/base/spec-ps.tex @@ -8,8 +8,8 @@ %D copyright={PRAGMA / Hans Hagen \& Ton Otten}] %C %C This module is part of the \CONTEXT\ macro||package and is -%C therefore copyrighted by \PRAGMA. See mreadme.pdf for -%C details. +%C therefore copyrighted by \PRAGMA. See mreadme.pdf for +%C details. %D \macros %D {dostartgraymode,dostopgraymode, @@ -18,141 +18,144 @@ %D dostartscaling,dostopscaling, %D dostartmirroring,dostopmirroring, %D dostartnegative,dostopnegative, +%D dostartoverprint,dostopoverprint, %D doselectfirstpaperbin, %D doselectsecondpaperbin} %D -%D This implementation is straightforward and can be used as -%D a default with postscript||drivers. We use \type{ps:} as -%D opening, because most drivers support this. +%D This implementation is straightforward and can be used as +%D a default with postscript||drivers. We use \type{ps:} as +%D opening, because most drivers support this. \startspecials[postscript] \def\@@insertpostscriptliteral {ps: } -\def\@@insertpostscriptretain {" } +\def\@@insertpostscriptretain {" } \definespecial\dostartgraymode#1% {\special - {\@@insertpostscriptliteral + {\@@insertpostscriptliteral #1\space setgray}} -\definespecial\dostopgraymode% +\definespecial\dostopgraymode {\special - {\@@insertpostscriptliteral + {\@@insertpostscriptliteral 0 setgray}} \definespecial\dostartrgbcolormode#1#2#3% {\special - {\@@insertpostscriptliteral + {\@@insertpostscriptliteral #1\space #2\space #3\space setrgbcolor}} \definespecial\dostartcmykcolormode#1#2#3#4% {\special - {\@@insertpostscriptliteral + {\@@insertpostscriptliteral #1\space #2\space #3\space #4\space setcmykcolor}} \definespecial\dostartgraycolormode#1% {\special - {\@@insertpostscriptliteral + {\@@insertpostscriptliteral #1\space setgray}} \definespecial\dostopcolormode {\special - {\@@insertpostscriptliteral + {\@@insertpostscriptliteral 0 setgray}} -\definespecial\doselectfirstpaperbin% +\definespecial\doselectfirstpaperbin {\special - {\@@insertpostscriptliteral - statusdict begin 1 setpapertray end}} % checken + {\@@insertpostscriptliteral + statusdict begin 1 setpapertray end}} % checken -\definespecial\doselectsecondpaperbin% +\definespecial\doselectsecondpaperbin {\special - {\@@insertpostscriptliteral - statusdict begin 0 setpapertray end}} % checken + {\@@insertpostscriptliteral + statusdict begin 0 setpapertray end}} % checken \definespecial\dostartrotation#1% straight from the YandY manual {\special - {\@@insertpostscriptliteral + {\@@insertpostscriptliteral gsave currentpoint currentpoint translate \number#1\space\space rotate neg exch neg exch translate}} -\definespecial\dostoprotation% +\definespecial\dostoprotation {\special - {\@@insertpostscriptliteral + {\@@insertpostscriptliteral currentfont currentpoint grestore moveto setfont}} \definespecial\dostartscaling#1#2% conforming the YandY manual {\special - {\@@insertpostscriptliteral - gsave currentpoint currentpoint translate + {\@@insertpostscriptliteral + gsave currentpoint currentpoint translate #1\space #2\space scale neg exch neg exch translate}} - -\definespecial\dostopscaling% + +\definespecial\dostopscaling {\special - {\@@insertpostscriptliteral + {\@@insertpostscriptliteral currentfont currentpoint grestore moveto setfont}} -\definespecial\dostartmirroring% some translate and exch stuff from YandY +\definespecial\dostartmirroring % some translate and exch stuff from YandY {\special - {\@@insertpostscriptliteral + {\@@insertpostscriptliteral gsave currentpoint currentpoint translate [-1 0 0 1 0 0] concat neg exch neg exch translate}} -\definespecial\dostopmirroring% +\definespecial\dostopmirroring {\special - {\@@insertpostscriptliteral + {\@@insertpostscriptliteral currentfont currentpoint grestore moveto setfont}} -\definespecial\dostartnegative% - {\special - {\@@insertpostscriptliteral - gsave {1 exch sub} settransfer}} +\definespecial\dostartnegative + {\special{\@@insertpostscriptliteral gsave {1 exch sub} settransfer}} -\definespecial\dostopnegative% - {\special - {\@@insertpostscriptliteral - grestore}} +\definespecial\dostopnegative + {\special{\@@insertpostscriptliteral grestore}} + +\definespecial\dostartoverprint + {\special{\@@insertpostscriptliteral true setoverprint}} + +\definespecial\dostopoverprint + {\special{\@@insertpostscriptliteral false setoverprint}} \definespecial\dostartgraphicgroup {\special{\@@insertpostscriptliteral gsave}} -\definespecial\dostopgraphicgroup +\definespecial\dostopgraphicgroup {\special{\@@insertpostscriptliteral grestore}} %D \macros %D {doovalbox} %D -%D This implementation is a mixture of several possible -%D implementations. We use some constants that may not be -%D changed. It took some time to find them, but these values -%D offer quite accurate results. The macro calls for -%D \type{\forgetall}, which resets indentation, skips and +%D This implementation is a mixture of several possible +%D implementations. We use some constants that may not be +%D changed. It took some time to find them, but these values +%D offer quite accurate results. The macro calls for +%D \type{\forgetall}, which resets indentation, skips and %D \type{\everypar}. %D %D Because a stroke follows the line, we correct for half of -%D the linewidth. Furthermore we use scaling to overcome some -%D limitations in the precision ($<1$~sp) and to prevent -%D rounding errors. We also do some correction for large -%D values. We let PostScript compare some arguments with -%D \type{a b eq {action} fi}. +%D the linewidth. Furthermore we use scaling to overcome some +%D limitations in the precision ($<1$~sp) and to prevent +%D rounding errors. We also do some correction for large +%D values. We let PostScript compare some arguments with +%D \type{a b eq {action} fi}. %D -%D The path is based on a macro of J.~Hefferon cs. We also -%D tried the D.~Salomon implementation, but this did not work -%D well, just like some other alternatives. +%D The path is based on a macro of J.~Hefferon cs. We also +%D tried the D.~Salomon implementation, but this did not work +%D well, just like some other alternatives. -% #1 = width #2 = height #3 = depth -% #4 = linewidth #5 = radius +% #1 = width #2 = height #3 = depth +% #4 = linewidth #5 = radius % #5 = stroke (ja,nee) #7 = fill (ja,nee) \def\@@insertpostscriptliteral {ps: } -\def\@@insertpostscriptretain {postscript } % unknown +\def\@@insertpostscriptretain {postscript } % unknown \def\dosomeovalcalc#1#2#3% {\dimen2=#1% - \advance\dimen2 #2% + \advance\dimen2 #2% \PointsToBigPoints{\dimen2}#3} -\def\dosomeovalbox#1#2#3#4#5#6#7% +\def\dosomeovalbox#1#2#3#4#5#6#7% {\bgroup \dimen0=#4\divide\dimen0 2 \dosomeovalcalc{0pt}{+\dimen0}\xmin @@ -162,10 +165,10 @@ \dosomeovalcalc{#4}{0pt}\stroke \dosomeovalcalc{#5}{0pt}\radius \edef\dostroke{#6}% - \edef\dofill{#7}% - \setbox0=\hbox + \edef\dofill{#7}% + \setbox\nextbox\hbox {\ifnum\dostroke\dofill>0 - \special + \special {\@@insertpostscriptretain gsave newpath @@ -173,46 +176,54 @@ \xmax\space \ymin\space \xmax\space \ymax\space \radius\space arcto \xmax\space \ymax\space \xmin\space \ymax\space \radius\space arcto \xmin\space \ymax\space \xmin\space \ymin\space \radius\space arcto - \xmin\space \ymin\space \xmax\space \ymin\space \radius\space arcto + \xmin\space \ymin\space \xmax\space \ymin\space \radius\space arcto \xmin\space \radius\space add \ymin\space moveto 16 {pop} repeat closepath - (\dostroke) (1) eq - {\stroke\space 0 ne - {gsave - \stroke\space setlinewidth - stroke + (\dostroke) (1) eq + {\stroke\space 0 ne + {gsave + \stroke\space setlinewidth + stroke grestore} if} if - (\dofill) (1) eq + (\dofill) (1) eq {fill} if grestore}% - \fi}% - \wd0=#1\ht0=#2\dp0=#3\box0 + \fi}% + \nextboxwd#1% + \nextboxht#2% + \nextboxdp#3% + \flushnextbox \egroup} -%D The indirect call permits a (rather) dirty hack, needed -%D for \DVIPS\ support. +%D The indirect call permits a (rather) dirty hack, needed +%D for \DVIPS\ support. -\definespecial\doovalbox% +\definespecial\doovalbox% {\dosomeovalbox} -%D \macros +%D \macros %D {dostartclipping,dostopclipping} %D -%D These two specials are not yet working as expected. +%D These two specials are not yet working as expected. \definespecial\dostartclipping#1#2#3% {\PointsToBigPoints{#2}\width \PointsToBigPoints{#3}\height \grabMPclippath{#1}{0}{\width}{\height} - {0 0 moveto \width 0 lineto \width \height lineto 0 \height\space lineto}% + {0 0 moveto \width 0 lineto \width \height lineto 0 \height\space lineto}% \special - {\@@insertpostscriptliteral\space + {\@@insertpostscriptliteral\space save newpath \MPclippath\space closepath clip}} -\definespecial\dostopclipping% +\definespecial\dostopclipping {\special{\@@insertpostscriptliteral\space restore}} +%D Some MP stuff: + +\definespecial\doinsertMPfile#1% + {\doiffileelse{./#1}{\includeMPasEPS{./#1}}{\message{[MP #1]}}} + \stopspecials \endinput |