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mkpsenc.tcl
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# mkpsenc.tcl -- # # This file generates the postscript prolog used by Tk. namespace eval ::tk { # Creates Postscript encoding vector for ISO-8859-1 (could theoretically # handle any 8-bit encoding, but Tk never generates characters outside # ASCII). # proc CreatePostscriptEncoding {} { variable psglyphs # Now check for known. Even if it is known, it can be other than we # need. GhostScript seems to be happy with such approach set result "\[\n" for {set i 0} {$i<256} {incr i 8} { for {set j 0} {$j<8} {incr j} { set enc [encoding convertfrom "iso8859-1" \ [format %c [expr {$i+$j}]]] catch { set hexcode {} set hexcode [format %04X [scan $enc %c]] } if {[info exists psglyphs($hexcode)]} { append result "/$psglyphs($hexcode)" } else { append result "/space" } } append result "\n" } append result "\]" return $result } # List of adobe glyph names. Converted from glyphlist.txt, downloaded from # Adobe. variable psglyphs array set psglyphs { 0020 space 0021 exclam 0022 quotedbl 0023 numbersign 0024 dollar 0025 percent 0026 ampersand 0027 quotesingle 0028 parenleft 0029 parenright 002A asterisk 002B plus 002C comma 002D hyphen 002E period 002F slash 0030 zero 0031 one 0032 two 0033 three 0034 four 0035 five 0036 six 0037 seven 0038 eight 0039 nine 003A colon 003B semicolon 003C less 003D equal 003E greater 003F question 0040 at 0041 A 0042 B 0043 C 0044 D 0045 E 0046 F 0047 G 0048 H 0049 I 004A J 004B K 004C L 004D M 004E N 004F O 0050 P 0051 Q 0052 R 0053 S 0054 T 0055 U 0056 V 0057 W 0058 X 0059 Y 005A Z 005B bracketleft 005C backslash 005D bracketright 005E asciicircum 005F underscore 0060 grave 0061 a 0062 b 0063 c 0064 d 0065 e 0066 f 0067 g 0068 h 0069 i 006A j 006B k 006C l 006D m 006E n 006F o 0070 p 0071 q 0072 r 0073 s 0074 t 0075 u 0076 v 0077 w 0078 x 0079 y 007A z 007B braceleft 007C bar 007D braceright 007E asciitilde 00A0 space 00A1 exclamdown 00A2 cent 00A3 sterling 00A4 currency 00A5 yen 00A6 brokenbar 00A7 section 00A8 dieresis 00A9 copyright 00AA ordfeminine 00AB guillemotleft 00AC logicalnot 00AD hyphen 00AE registered 00AF macron 00B0 degree 00B1 plusminus 00B2 twosuperior 00B3 threesuperior 00B4 acute 00B5 mu 00B6 paragraph 00B7 periodcentered 00B8 cedilla 00B9 onesuperior 00BA ordmasculine 00BB guillemotright 00BC onequarter 00BD onehalf 00BE threequarters 00BF questiondown 00C0 Agrave 00C1 Aacute 00C2 Acircumflex 00C3 Atilde 00C4 Adieresis 00C5 Aring 00C6 AE 00C7 Ccedilla 00C8 Egrave 00C9 Eacute 00CA Ecircumflex 00CB Edieresis 00CC Igrave 00CD Iacute 00CE Icircumflex 00CF Idieresis 00D0 Eth 00D1 Ntilde 00D2 Ograve 00D3 Oacute 00D4 Ocircumflex 00D5 Otilde 00D6 Odieresis 00D7 multiply 00D8 Oslash 00D9 Ugrave 00DA Uacute 00DB Ucircumflex 00DC Udieresis 00DD Yacute 00DE Thorn 00DF germandbls 00E0 agrave 00E1 aacute 00E2 acircumflex 00E3 atilde 00E4 adieresis 00E5 aring 00E6 ae 00E7 ccedilla 00E8 egrave 00E9 eacute 00EA ecircumflex 00EB edieresis 00EC igrave 00ED iacute 00EE icircumflex 00EF idieresis 00F0 eth 00F1 ntilde 00F2 ograve 00F3 oacute 00F4 ocircumflex 00F5 otilde 00F6 odieresis 00F7 divide 00F8 oslash 00F9 ugrave 00FA uacute 00FB ucircumflex 00FC udieresis 00FD yacute 00FE thorn 00FF ydieresis 0100 Amacron 0101 amacron 0102 Abreve 0103 abreve 0104 Aogonek 0105 aogonek 0106 Cacute 0107 cacute 0108 Ccircumflex 0109 ccircumflex 010A Cdotaccent 010B cdotaccent 010C Ccaron 010D ccaron 010E Dcaron 010F dcaron 0110 Dcroat 0111 dcroat 0112 Emacron 0113 emacron 0114 Ebreve 0115 ebreve 0116 Edotaccent 0117 edotaccent 0118 Eogonek 0119 eogonek 011A Ecaron 011B ecaron 011C Gcircumflex 011D gcircumflex 011E Gbreve 011F gbreve 0120 Gdotaccent 0121 gdotaccent 0122 Gcommaaccent 0123 gcommaaccent 0124 Hcircumflex 0125 hcircumflex 0126 Hbar 0127 hbar 0128 Itilde 0129 itilde 012A Imacron 012B imacron 012C Ibreve 012D ibreve 012E Iogonek 012F iogonek 0130 Idotaccent 0131 dotlessi 0132 IJ 0133 ij 0134 Jcircumflex 0135 jcircumflex 0136 Kcommaaccent 0137 kcommaaccent 0138 kgreenlandic 0139 Lacute 013A lacute 013B Lcommaaccent 013C lcommaaccent 013D Lcaron 013E lcaron 013F Ldot 0140 ldot 0141 Lslash 0142 lslash 0143 Nacute 0144 nacute 0145 Ncommaaccent 0146 ncommaaccent 0147 Ncaron 0148 ncaron 0149 napostrophe 014A Eng 014B eng 014C Omacron 014D omacron 014E Obreve 014F obreve 0150 Ohungarumlaut 0151 ohungarumlaut 0152 OE 0153 oe 0154 Racute 0155 racute 0156 Rcommaaccent 0157 rcommaaccent 0158 Rcaron 0159 rcaron 015A Sacute 015B sacute 015C Scircumflex 015D scircumflex 015E Scedilla 015F scedilla 0160 Scaron 0161 scaron 0162 Tcommaaccent 0163 tcommaaccent 0164 Tcaron 0165 tcaron 0166 Tbar 0167 tbar 0168 Utilde 0169 utilde 016A Umacron 016B umacron 016C Ubreve 016D ubreve 016E Uring 016F uring 0170 Uhungarumlaut 0171 uhungarumlaut 0172 Uogonek 0173 uogonek 0174 Wcircumflex 0175 wcircumflex 0176 Ycircumflex 0177 ycircumflex 0178 Ydieresis 0179 Zacute 017A zacute 017B Zdotaccent 017C zdotaccent 017D Zcaron 017E zcaron 017F longs 0192 florin 01A0 Ohorn 01A1 ohorn 01AF Uhorn 01B0 uhorn 01E6 Gcaron 01E7 gcaron 01FA Aringacute 01FB aringacute 01FC AEacute 01FD aeacute 01FE Oslashacute 01FF oslashacute 0218 Scommaaccent 0219 scommaaccent 021A Tcommaaccent 021B tcommaaccent 02BC afii57929 02BD afii64937 02C6 circumflex 02C7 caron 02C9 macron 02D8 breve 02D9 dotaccent 02DA ring 02DB ogonek 02DC tilde 02DD hungarumlaut 0300 gravecomb 0301 acutecomb 0303 tildecomb 0309 hookabovecomb 0323 dotbelowcomb 0384 tonos 0385 dieresistonos 0386 Alphatonos 0387 anoteleia 0388 Epsilontonos 0389 Etatonos 038A Iotatonos 038C Omicrontonos 038E Upsilontonos 038F Omegatonos 0390 iotadieresistonos 0391 Alpha 0392 Beta 0393 Gamma 0394 Delta 0395 Epsilon 0396 Zeta 0397 Eta 0398 Theta 0399 Iota 039A Kappa 039B Lambda 039C Mu 039D Nu 039E Xi 039F Omicron 03A0 Pi 03A1 Rho 03A3 Sigma 03A4 Tau 03A5 Upsilon 03A6 Phi 03A7 Chi 03A8 Psi 03A9 Omega 03AA Iotadieresis 03AB Upsilondieresis 03AC alphatonos 03AD epsilontonos 03AE etatonos 03AF iotatonos 03B0 upsilondieresistonos 03B1 alpha 03B2 beta 03B3 gamma 03B4 delta 03B5 epsilon 03B6 zeta 03B7 eta 03B8 theta 03B9 iota 03BA kappa 03BB lambda 03BC mu 03BD nu 03BE xi 03BF omicron 03C0 pi 03C1 rho 03C2 sigma1 03C3 sigma 03C4 tau 03C5 upsilon 03C6 phi 03C7 chi 03C8 psi 03C9 omega 03CA iotadieresis 03CB upsilondieresis 03CC omicrontonos 03CD upsilontonos 03CE omegatonos 03D1 theta1 03D2 Upsilon1 03D5 phi1 03D6 omega1 0401 afii10023 0402 afii10051 0403 afii10052 0404 afii10053 0405 afii10054 0406 afii10055 0407 afii10056 0408 afii10057 0409 afii10058 040A afii10059 040B afii10060 040C afii10061 040E afii10062 040F afii10145 0410 afii10017 0411 afii10018 0412 afii10019 0413 afii10020 0414 afii10021 0415 afii10022 0416 afii10024 0417 afii10025 0418 afii10026 0419 afii10027 041A afii10028 041B afii10029 041C afii10030 041D afii10031 041E afii10032 041F afii10033 0420 afii10034 0421 afii10035 0422 afii10036 0423 afii10037 0424 afii10038 0425 afii10039 0426 afii10040 0427 afii10041 0428 afii10042 0429 afii10043 042A afii10044 042B afii10045 042C afii10046 042D afii10047 042E afii10048 042F afii10049 0430 afii10065 0431 afii10066 0432 afii10067 0433 afii10068 0434 afii10069 0435 afii10070 0436 afii10072 0437 afii10073 0438 afii10074 0439 afii10075 043A afii10076 043B afii10077 043C afii10078 043D afii10079 043E afii10080 043F afii10081 0440 afii10082 0441 afii10083 0442 afii10084 0443 afii10085 0444 afii10086 0445 afii10087 0446 afii10088 0447 afii10089 0448 afii10090 0449 afii10091 044A afii10092 044B afii10093 044C afii10094 044D afii10095 044E afii10096 044F afii10097 0451 afii10071 0452 afii10099 0453 afii10100 0454 afii10101 0455 afii10102 0456 afii10103 0457 afii10104 0458 afii10105 0459 afii10106 045A afii10107 045B afii10108 045C afii10109 045E afii10110 045F afii10193 0462 afii10146 0463 afii10194 0472 afii10147 0473 afii10195 0474 afii10148 0475 afii10196 0490 afii10050 0491 afii10098 04D9 afii10846 05B0 afii57799 05B1 afii57801 05B2 afii57800 05B3 afii57802 05B4 afii57793 05B5 afii57794 05B6 afii57795 05B7 afii57798 05B8 afii57797 05B9 afii57806 05BB afii57796 05BC afii57807 05BD afii57839 05BE afii57645 05BF afii57841 05C0 afii57842 05C1 afii57804 05C2 afii57803 05C3 afii57658 05D0 afii57664 05D1 afii57665 05D2 afii57666 05D3 afii57667 05D4 afii57668 05D5 afii57669 05D6 afii57670 05D7 afii57671 05D8 afii57672 05D9 afii57673 05DA afii57674 05DB afii57675 05DC afii57676 05DD afii57677 05DE afii57678 05DF afii57679 05E0 afii57680 05E1 afii57681 05E2 afii57682 05E3 afii57683 05E4 afii57684 05E5 afii57685 05E6 afii57686 05E7 afii57687 05E8 afii57688 05E9 afii57689 05EA afii57690 05F0 afii57716 05F1 afii57717 05F2 afii57718 060C afii57388 061B afii57403 061F afii57407 0621 afii57409 0622 afii57410 0623 afii57411 0624 afii57412 0625 afii57413 0626 afii57414 0627 afii57415 0628 afii57416 0629 afii57417 062A afii57418 062B afii57419 062C afii57420 062D afii57421 062E afii57422 062F afii57423 0630 afii57424 0631 afii57425 0632 afii57426 0633 afii57427 0634 afii57428 0635 afii57429 0636 afii57430 0637 afii57431 0638 afii57432 0639 afii57433 063A afii57434 0640 afii57440 0641 afii57441 0642 afii57442 0643 afii57443 0644 afii57444 0645 afii57445 0646 afii57446 0647 afii57470 0648 afii57448 0649 afii57449 064A afii57450 064B afii57451 064C afii57452 064D afii57453 064E afii57454 064F afii57455 0650 afii57456 0651 afii57457 0652 afii57458 0660 afii57392 0661 afii57393 0662 afii57394 0663 afii57395 0664 afii57396 0665 afii57397 0666 afii57398 0667 afii57399 0668 afii57400 0669 afii57401 066A afii57381 066D afii63167 0679 afii57511 067E afii57506 0686 afii57507 0688 afii57512 0691 afii57513 0698 afii57508 06A4 afii57505 06AF afii57509 06BA afii57514 06D2 afii57519 06D5 afii57534 1E80 Wgrave 1E81 wgrave 1E82 Wacute 1E83 wacute 1E84 Wdieresis 1E85 wdieresis 1EF2 Ygrave 1EF3 ygrave 200C afii61664 200D afii301 200E afii299 200F afii300 2012 figuredash 2013 endash 2014 emdash 2015 afii00208 2017 underscoredbl 2018 quoteleft 2019 quoteright 201A quotesinglbase 201B quotereversed 201C quotedblleft 201D quotedblright 201E quotedblbase 2020 dagger 2021 daggerdbl 2022 bullet 2024 onedotenleader 2025 twodotenleader 2026 ellipsis 202C afii61573 202D afii61574 202E afii61575 2030 perthousand 2032 minute 2033 second 2039 guilsinglleft 203A guilsinglright 203C exclamdbl 2044 fraction 2070 zerosuperior 2074 foursuperior 2075 fivesuperior 2076 sixsuperior 2077 sevensuperior 2078 eightsuperior 2079 ninesuperior 207D parenleftsuperior 207E parenrightsuperior 207F nsuperior 2080 zeroinferior 2081 oneinferior 2082 twoinferior 2083 threeinferior 2084 fourinferior 2085 fiveinferior 2086 sixinferior 2087 seveninferior 2088 eightinferior 2089 nineinferior 208D parenleftinferior 208E parenrightinferior 20A1 colonmonetary 20A3 franc 20A4 lira 20A7 peseta 20AA afii57636 20AB dong 20AC Euro 2105 afii61248 2111 Ifraktur 2113 afii61289 2116 afii61352 2118 weierstrass 211C Rfraktur 211E prescription 2122 trademark 2126 Omega 212E estimated 2135 aleph 2153 onethird 2154 twothirds 215B oneeighth 215C threeeighths 215D fiveeighths 215E seveneighths 2190 arrowleft 2191 arrowup 2192 arrowright 2193 arrowdown 2194 arrowboth 2195 arrowupdn 21A8 arrowupdnbse 21B5 carriagereturn 21D0 arrowdblleft 21D1 arrowdblup 21D2 arrowdblright 21D3 arrowdbldown 21D4 arrowdblboth 2200 universal 2202 partialdiff 2203 existential 2205 emptyset 2206 Delta 2207 gradient 2208 element 2209 notelement 220B suchthat 220F product 2211 summation 2212 minus 2215 fraction 2217 asteriskmath 2219 periodcentered 221A radical 221D proportional 221E infinity 221F orthogonal 2220 angle 2227 logicaland 2228 logicalor 2229 intersection 222A union 222B integral 2234 therefore 223C similar 2245 congruent 2248 approxequal 2260 notequal 2261 equivalence 2264 lessequal 2265 greaterequal 2282 propersubset 2283 propersuperset 2284 notsubset 2286 reflexsubset 2287 reflexsuperset 2295 circleplus 2297 circlemultiply 22A5 perpendicular 22C5 dotmath 2302 house 2310 revlogicalnot 2320 integraltp 2321 integralbt 2329 angleleft 232A angleright 2500 SF100000 2502 SF110000 250C SF010000 2510 SF030000 2514 SF020000 2518 SF040000 251C SF080000 2524 SF090000 252C SF060000 2534 SF070000 253C SF050000 2550 SF430000 2551 SF240000 2552 SF510000 2553 SF520000 2554 SF390000 2555 SF220000 2556 SF210000 2557 SF250000 2558 SF500000 2559 SF490000 255A SF380000 255B SF280000 255C SF270000 255D SF260000 255E SF360000 255F SF370000 2560 SF420000 2561 SF190000 2562 SF200000 2563 SF230000 2564 SF470000 2565 SF480000 2566 SF410000 2567 SF450000 2568 SF460000 2569 SF400000 256A SF540000 256B SF530000 256C SF440000 2580 upblock 2584 dnblock 2588 block 258C lfblock 2590 rtblock 2591 ltshade 2592 shade 2593 dkshade 25A0 filledbox 25A1 H22073 25AA H18543 25AB H18551 25AC filledrect 25B2 triagup 25BA triagrt 25BC triagdn 25C4 triaglf 25CA lozenge 25CB circle 25CF H18533 25D8 invbullet 25D9 invcircle 25E6 openbullet 263A smileface 263B invsmileface 263C sun 2640 female 2642 male 2660 spade 2663 club 2665 heart 2666 diamond 266A musicalnote 266B musicalnotedbl F6BE dotlessj F6BF LL F6C0 ll F6C1 Scedilla F6C2 scedilla F6C3 commaaccent F6C4 afii10063 F6C5 afii10064 F6C6 afii10192 F6C7 afii10831 F6C8 afii10832 F6C9 Acute F6CA Caron F6CB Dieresis F6CC DieresisAcute F6CD DieresisGrave F6CE Grave F6CF Hungarumlaut F6D0 Macron F6D1 cyrBreve F6D2 cyrFlex F6D3 dblGrave F6D4 cyrbreve F6D5 cyrflex F6D6 dblgrave F6D7 dieresisacute F6D8 dieresisgrave F6D9 copyrightserif F6DA registerserif F6DB trademarkserif F6DC onefitted F6DD rupiah F6DE threequartersemdash F6DF centinferior F6E0 centsuperior F6E1 commainferior F6E2 commasuperior F6E3 dollarinferior F6E4 dollarsuperior F6E5 hypheninferior F6E6 hyphensuperior F6E7 periodinferior F6E8 periodsuperior F6E9 asuperior F6EA bsuperior F6EB dsuperior F6EC esuperior F6ED isuperior F6EE lsuperior F6EF msuperior F6F0 osuperior F6F1 rsuperior F6F2 ssuperior F6F3 tsuperior F6F4 Brevesmall F6F5 Caronsmall F6F6 Circumflexsmall F6F7 Dotaccentsmall F6F8 Hungarumlautsmall F6F9 Lslashsmall F6FA OEsmall F6FB Ogoneksmall F6FC Ringsmall F6FD Scaronsmall F6FE Tildesmall F6FF Zcaronsmall F721 exclamsmall F724 dollaroldstyle F726 ampersandsmall F730 zerooldstyle F731 oneoldstyle F732 twooldstyle F733 threeoldstyle F734 fouroldstyle F735 fiveoldstyle F736 sixoldstyle F737 sevenoldstyle F738 eightoldstyle F739 nineoldstyle F73F questionsmall F760 Gravesmall F761 Asmall F762 Bsmall F763 Csmall F764 Dsmall F765 Esmall F766 Fsmall F767 Gsmall F768 Hsmall F769 Ismall F76A Jsmall F76B Ksmall F76C Lsmall F76D Msmall F76E Nsmall F76F Osmall F770 Psmall F771 Qsmall F772 Rsmall F773 Ssmall F774 Tsmall F775 Usmall F776 Vsmall F777 Wsmall F778 Xsmall F779 Ysmall F77A Zsmall F7A1 exclamdownsmall F7A2 centoldstyle F7A8 Dieresissmall F7AF Macronsmall F7B4 Acutesmall F7B8 Cedillasmall F7BF questiondownsmall F7E0 Agravesmall F7E1 Aacutesmall F7E2 Acircumflexsmall F7E3 Atildesmall F7E4 Adieresissmall F7E5 Aringsmall F7E6 AEsmall F7E7 Ccedillasmall F7E8 Egravesmall F7E9 Eacutesmall F7EA Ecircumflexsmall F7EB Edieresissmall F7EC Igravesmall F7ED Iacutesmall F7EE Icircumflexsmall F7EF Idieresissmall F7F0 Ethsmall F7F1 Ntildesmall F7F2 Ogravesmall F7F3 Oacutesmall F7F4 Ocircumflexsmall F7F5 Otildesmall F7F6 Odieresissmall F7F8 Oslashsmall F7F9 Ugravesmall F7FA Uacutesmall F7FB Ucircumflexsmall F7FC Udieresissmall F7FD Yacutesmall F7FE Thornsmall F7FF Ydieresissmall F8E5 radicalex F8E6 arrowvertex F8E7 arrowhorizex F8E8 registersans F8E9 copyrightsans F8EA trademarksans F8EB parenlefttp F8EC parenleftex F8ED parenleftbt F8EE bracketlefttp F8EF bracketleftex F8F0 bracketleftbt F8F1 bracelefttp F8F2 braceleftmid F8F3 braceleftbt F8F4 braceex F8F5 integralex F8F6 parenrighttp F8F7 parenrightex F8F8 parenrightbt F8F9 bracketrighttp F8FA bracketrightex F8FB bracketrightbt F8FC bracerighttp F8FD bracerightmid F8FE bracerightbt FB00 ff FB01 fi FB02 fl FB03 ffi FB04 ffl FB1F afii57705 FB2A afii57694 FB2B afii57695 FB35 afii57723 FB4B afii57700 } variable ps_preamble {} namespace eval ps { namespace ensemble create namespace export {[a-z]*} proc literal {string} { upvar 0 ::tk::ps_preamble preamble foreach line [split $string \n] { set line [string trim $line] if {$line eq ""} continue append preamble $line \n } return } proc variable {name value} { upvar 0 ::tk::ps_preamble preamble append preamble "/$name $value def\n" return } proc function {name body} { upvar 0 ::tk::ps_preamble preamble append preamble "/$name \{" foreach line [split $body \n] { set line [string trim $line] # Strip blank lines and comments from the bodies of functions if {$line eq "" } continue if {[string match {[%#]*} $line]} continue append preamble $line " " } append preamble "\} bind def\n" return } } ps literal { %%BeginProlog % This is a standard prolog for Postscript generated by Tk's canvas % widget. } ps variable CurrentEncoding [CreatePostscriptEncoding] ps literal {50 dict begin} # The definitions below just define all of the variables used in any of # the procedures here. This is needed for obscure reasons explained on # p. 716 of the Postscript manual (Section H.2.7, "Initializing # Variables," in the section on Encapsulated Postscript). ps variable baseline 0 ps variable stipimage 0 ps variable height 0 ps variable justify 0 ps variable lineLength 0 ps variable spacing 0 ps variable stipple 0 ps variable strings 0 ps variable xoffset 0 ps variable yoffset 0 ps variable tmpstip null ps variable baselineSampler "( TXygqPZ)" # Put an extra-tall character in; done this way to avoid encoding trouble ps literal {baselineSampler 0 196 put} ps function cstringshow { { dup type /stringtype eq { show } { glyphshow } ifelse } forall } ps function cstringwidth { 0 exch 0 exch { dup type /stringtype eq { stringwidth } { currentfont /Encoding get exch 1 exch put (\001) stringwidth } ifelse exch 3 1 roll add 3 1 roll add exch } forall } # font ISOEncode font # # This procedure changes the encoding of a font from the default # Postscript encoding to current system encoding. It's typically invoked # just before invoking "setfont". The body of this procedure comes from # Section 5.6.1 of the Postscript book. ps function ISOEncode { dup length dict begin {1 index /FID ne {def} {pop pop} ifelse} forall /Encoding CurrentEncoding def currentdict end % I'm not sure why it's necessary to use "definefont" on this new % font, but it seems to be important; just use the name "Temporary" % for the font. /Temporary exch definefont } # StrokeClip # # This procedure converts the current path into a clip area under the # assumption of stroking. It's a bit tricky because some Postscript # interpreters get errors during strokepath for dashed lines. If this # happens then turn off dashes and try again. ps function StrokeClip { {strokepath} stopped { (This Postscript printer gets limitcheck overflows when) = (stippling dashed lines; lines will be printed solid instead.) = [] 0 setdash strokepath} if clip } # desiredSize EvenPixels closestSize # # The procedure below is used for stippling. Given the optimal size of a # dot in a stipple pattern in the current user coordinate system, compute # the closest size that is an exact multiple of the device's pixel # size. This allows stipple patterns to be displayed without aliasing # effects. ps function EvenPixels { % Compute exact number of device pixels per stipple dot. dup 0 matrix currentmatrix dtransform dup mul exch dup mul add sqrt % Round to an integer, make sure the number is at least 1, and % compute user coord distance corresponding to this. dup round dup 1 lt {pop 1} if exch div mul } # width height string StippleFill -- # # Given a path already set up and a clipping region generated from it, # this procedure will fill the clipping region with a stipple pattern. # "String" contains a proper image description of the stipple pattern and # "width" and "height" give its dimensions. Each stipple dot is assumed to # be about one unit across in the current user coordinate system. This # procedure trashes the graphics state. ps function StippleFill { % The following code is needed to work around a NeWSprint bug. /tmpstip 1 index def % Change the scaling so that one user unit in user coordinates % corresponds to the size of one stipple dot. 1 EvenPixels dup scale % Compute the bounding box occupied by the path (which is now the % clipping region), and round the lower coordinates down to the % nearest starting point for the stipple pattern. Be careful about % negative numbers, since the rounding works differently on them. pathbbox 4 2 roll 5 index div dup 0 lt {1 sub} if cvi 5 index mul 4 1 roll 6 index div dup 0 lt {1 sub} if cvi 6 index mul 3 2 roll % Stack now: width height string y1 y2 x1 x2 % Below is a doubly-nested for loop to iterate across this area % in units of the stipple pattern size, going up columns then % across rows, blasting out a stipple-pattern-sized rectangle at % each position 6 index exch { 2 index 5 index 3 index { % Stack now: width height string y1 y2 x y gsave 1 index exch translate 5 index 5 index true matrix tmpstip imagemask grestore } for pop } for pop pop pop pop pop } # -- AdjustColor -- # # Given a color value already set for output by the caller, adjusts that # value to a grayscale or mono value if requested by the CL variable. ps function AdjustColor { CL 2 lt { currentgray CL 0 eq { .5 lt {0} {1} ifelse } if setgray } if } # x y strings spacing xoffset yoffset justify stipple DrawText -- # # This procedure does all of the real work of drawing text. The color and # font must already have been set by the caller, and the following # arguments must be on the stack: # # x, y - Coordinates at which to draw text. # strings - An array of strings, one for each line of the text item, in # order from top to bottom. # spacing - Spacing between lines. # xoffset - Horizontal offset for text bbox relative to x and y: 0 for # nw/w/sw anchor, -0.5 for n/center/s, and -1.0 for ne/e/se. # yoffset - Vertical offset for text bbox relative to x and y: 0 for # nw/n/ne anchor, +0.5 for w/center/e, and +1.0 for sw/s/se. # justify - 0 for left justification, 0.5 for center, 1 for right justify. # stipple - Boolean value indicating whether or not text is to be drawn in # stippled fashion. If text is stippled, function StippleText # must have been defined to call StippleFill in the right way. # # Also, when this procedure is invoked, the color and font must already # have been set for the text. ps function DrawText { /stipple exch def /justify exch def /yoffset exch def /xoffset exch def /spacing exch def /strings exch def % First scan through all of the text to find the widest line. /lineLength 0 def strings { cstringwidth pop dup lineLength gt {/lineLength exch def} {pop} ifelse newpath } forall % Compute the baseline offset and the actual font height. 0 0 moveto baselineSampler false charpath pathbbox dup /baseline exch def exch pop exch sub /height exch def pop newpath % Translate and rotate coordinates first so that the origin is at % the upper-left corner of the text's bounding box. Remember that % angle for rotating, and x and y for positioning are still on the % stack. translate rotate lineLength xoffset mul strings length 1 sub spacing mul height add yoffset mul translate % Now use the baseline and justification information to translate % so that the origin is at the baseline and positioning point for % the first line of text. justify lineLength mul baseline neg translate % Iterate over each of the lines to output it. For each line, % compute its width again so it can be properly justified, then % display it. strings { dup cstringwidth pop justify neg mul 0 moveto stipple { % The text is stippled, so turn it into a path and print % by calling StippledText, which in turn calls % StippleFill. Unfortunately, many Postscript interpreters % will get overflow errors if we try to do the whole % string at once, so do it a character at a time. gsave /char (X) def { dup type /stringtype eq { % This segment is a string. { char 0 3 -1 roll put currentpoint gsave char true charpath clip StippleText grestore char stringwidth translate moveto } forall } { % This segment is glyph name % Temporary override currentfont /Encoding get exch 1 exch put currentpoint gsave (\001) true charpath clip StippleText grestore (\001) stringwidth translate moveto } ifelse } forall grestore } {cstringshow} ifelse 0 spacing neg translate } forall } # Define the "TkPhoto" function variants, which are modified versions # of the original "transparentimage" function posted by ian@five-d.com # (Ian Kemmish) to comp.lang.postscript. For a monochrome colorLevel # this is a slightly different version that uses the imagemask command # instead of image. ps function TkPhotoColor { gsave 32 dict begin /tinteger exch def /transparent 1 string def transparent 0 tinteger put /olddict exch def olddict /DataSource get dup type /filetype ne { olddict /DataSource 3 -1 roll 0 () /SubFileDecode filter put } { pop } ifelse /newdict olddict maxlength dict def olddict newdict copy pop /w newdict /Width get def /crpp newdict /Decode get length 2 idiv def /str w string def /pix w crpp mul string def /substrlen 2 w log 2 log div floor exp cvi def /substrs [ { substrlen string 0 1 substrlen 1 sub { 1 index exch tinteger put } for /substrlen substrlen 2 idiv def substrlen 0 eq {exit} if } loop ] def /h newdict /Height get def 1 w div 1 h div matrix scale olddict /ImageMatrix get exch matrix concatmatrix matrix invertmatrix concat newdict /Height 1 put newdict /DataSource pix put /mat [w 0 0 h 0 0] def newdict /ImageMatrix mat put 0 1 h 1 sub { mat 5 3 -1 roll neg put olddict /DataSource get str readstring pop pop /tail str def /x 0 def olddict /DataSource get pix readstring pop pop { tail transparent search dup /done exch not def {exch pop exch pop} if /w1 exch length def w1 0 ne { newdict /DataSource pix x crpp mul w1 crpp mul getinterval put newdict /Width w1 put mat 4 x neg put /x x w1 add def newdict image /tail tail w1 tail length w1 sub getinterval def } if done {exit} if tail substrs { anchorsearch {pop} if } forall /tail exch def tail length 0 eq {exit} if /x w tail length sub def } loop } for end grestore } ps function TkPhotoMono { gsave 32 dict begin /dummyInteger exch def /olddict exch def olddict /DataSource get dup type /filetype ne { olddict /DataSource 3 -1 roll 0 () /SubFileDecode filter put } { pop } ifelse /newdict olddict maxlength dict def olddict newdict copy pop /w newdict /Width get def /pix w 7 add 8 idiv string def /h newdict /Height get def 1 w div 1 h div matrix scale olddict /ImageMatrix get exch matrix concatmatrix matrix invertmatrix concat newdict /Height 1 put newdict /DataSource pix put /mat [w 0 0 h 0 0] def newdict /ImageMatrix mat put 0 1 h 1 sub { mat 5 3 -1 roll neg put 0.000 0.000 0.000 setrgbcolor olddict /DataSource get pix readstring pop pop newdict /DataSource pix put newdict imagemask 1.000 1.000 1.000 setrgbcolor olddict /DataSource get pix readstring pop pop newdict /DataSource pix put newdict imagemask } for end grestore } ps literal %%EndProlog } proc tk::ensure_psenc_is_loaded {} { }
