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1.1 ! root 1: % ! 2: % Shading support - primarily for ASCII file translators. ! 3: % ! 4: ! 5: /grays [0.98 0.9 0.75 0.6] def ! 6: ! 7: /setshade { ! 8: /level exch def ! 9: level 0 le { ! 10: /textgray 0 def ! 11: /backgray 1 def ! 12: }{ ! 13: /backgray level grays length gt ! 14: {/textgray 1 def 0} ! 15: {/textgray 0 def grays level 1 sub get} ! 16: ifelse def ! 17: } ifelse ! 18: textgray setgray ! 19: /dY1 0 def ! 20: /dY2 0 def ! 21: } bind def ! 22: ! 23: /drawrvbox { ! 24: /x2 exch charwidth mul def ! 25: /x1 exch charwidth mul def ! 26: ! 27: x1 x2 lt { ! 28: dup % expects y on top ! 29: /y1 exch linespace mul def ! 30: /y2 y1 def ! 31: ! 32: dY1 0 eq dY2 0 eq and { ! 33: currentfont /FontBBox get aload pop ! 34: 160 sub ! 35: currentfont /FontMatrix get dtransform /dY2 exch def pop ! 36: 100 add ! 37: currentfont /FontMatrix get dtransform /dY1 exch def pop ! 38: } if ! 39: ! 40: /y1 y1 dY1 add def ! 41: /y2 y2 dY2 add def ! 42: ! 43: backgray setgray ! 44: newpath ! 45: x1 y1 moveto ! 46: x2 y1 lineto ! 47: x2 y2 lineto ! 48: x1 y2 lineto ! 49: closepath fill ! 50: } if ! 51: textgray setgray ! 52: } bind def
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