ref: 9fcce48b3859f3aa5a784efba460ad2b090bf7a8
dir: /sys/lib/postscript/prologues/color.ps/
%
% Color and reverse video support for dpost. A call made to setcolor with two
% arguments implies reverse video printing.
%
/rgb {setrgbcolor} bind def
/hsb {sethsbcolor} bind def
/colordict 50 dict dup begin
/red { 1 0 0 } def
/green { 0 1 0 } def
/blue { 0 0 1 } def
/cyan { 0 1 1 } def
/magenta { 1 0 1 } def
/yellow { 1 1 0 } def
/white { 1 1 1 } def
/black { 0 0 0 } def
end def
/setcolor {
counttomark 1 eq {
dup colordict exch known not {pop /black} if
colordict exch get exec setrgbcolor
} if
counttomark 2 eq {
/backcolor exch def
/textcolor exch def
colordict backcolor known not colordict textcolor known not or {
/backcolor colordict /black get def
/textcolor colordict /white get def
} if
/backcolor colordict backcolor get def
/textcolor colordict textcolor get def
/dY1 0 def
/dY2 0 def
textcolor exec setrgbcolor
} if
} bind def
/drawrvbox {
/x2 exch def
/x1 exch def
currentpoint dup
/y1 exch def
/y2 exch def pop
dY1 0 eq dY2 0 eq and {
currentfont /FontBBox get aload pop
currentfont /FontMatrix get dtransform /dY2 exch def pop
currentfont /FontMatrix get dtransform /dY1 exch def pop
} if
/y1 y1 dY1 add def
/y2 y2 dY2 add def
backcolor exec setrgbcolor
newpath
x1 y1 moveto
x2 y1 lineto
x2 y2 lineto
x1 y2 lineto
closepath fill
textcolor exec setrgbcolor
} bind def