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|
;;; color.scm -- Color management.
;;;
;;; Copyright 2003, 2004 Erick Gallesio - I3S-CNRS/ESSI <eg@essi.fr>
;;; Copyright 2006 Ludovic Court�s <ludovic.courtes@laas.fr>
;;;
;;;
;;; This program is free software; you can redistribute it and/or modify
;;; it under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 2 of the License, or
;;; (at your option) any later version.
;;;
;;; This program is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with this program; if not, write to the Free Software
;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
;;; USA.
(define-module (skribilo color)
:autoload (srfi srfi-60) (bitwise-and arithmetic-shift)
:export (skribe-color->rgb skribe-get-used-colors skribe-use-color!))
;; FIXME: This module should be generalized and the `skribe-' procedures
;; moved to `compat.scm'.
;; FIXME: Use a fluid? Or remove it?
(define *used-colors* '())
(define *skribe-rgb-alist* '(
("snow" . "255 250 250")
("ghostwhite" . "248 248 255")
("whitesmoke" . "245 245 245")
("gainsboro" . "220 220 220")
("floralwhite" . "255 250 240")
("oldlace" . "253 245 230")
("linen" . "250 240 230")
("antiquewhite" . "250 235 215")
("papayawhip" . "255 239 213")
("blanchedalmond" . "255 235 205")
("bisque" . "255 228 196")
("peachpuff" . "255 218 185")
("navajowhite" . "255 222 173")
("moccasin" . "255 228 181")
("cornsilk" . "255 248 220")
("ivory" . "255 255 240")
("lemonchiffon" . "255 250 205")
("seashell" . "255 245 238")
("honeydew" . "240 255 240")
("mintcream" . "245 255 250")
("azure" . "240 255 255")
("aliceblue" . "240 248 255")
("lavender" . "230 230 250")
("lavenderblush" . "255 240 245")
("mistyrose" . "255 228 225")
("white" . "255 255 255")
("black" . "0 0 0")
("darkslategrey" . "47 79 79")
("dimgrey" . "105 105 105")
("slategrey" . "112 128 144")
("lightslategrey" . "119 136 153")
("grey" . "190 190 190")
("lightgrey" . "211 211 211")
("midnightblue" . "25 25 112")
("navy" . "0 0 128")
("navyblue" . "0 0 128")
("cornflowerblue" . "100 149 237")
("darkslateblue" . "72 61 139")
("slateblue" . "106 90 205")
("mediumslateblue" . "123 104 238")
("lightslateblue" . "132 112 255")
("mediumblue" . "0 0 205")
("royalblue" . "65 105 225")
("blue" . "0 0 255")
("dodgerblue" . "30 144 255")
("deepskyblue" . "0 191 255")
("skyblue" . "135 206 235")
("lightskyblue" . "135 206 250")
("steelblue" . "70 130 180")
("lightsteelblue" . "176 196 222")
("lightblue" . "173 216 230")
("powderblue" . "176 224 230")
("paleturquoise" . "175 238 238")
("darkturquoise" . "0 206 209")
("mediumturquoise" . "72 209 204")
("turquoise" . "64 224 208")
("cyan" . "0 255 255")
("lightcyan" . "224 255 255")
("cadetblue" . "95 158 160")
("mediumaquamarine" . "102 205 170")
("aquamarine" . "127 255 212")
("darkgreen" . "0 100 0")
("darkolivegreen" . "85 107 47")
("darkseagreen" . "143 188 143")
("seagreen" . "46 139 87")
("mediumseagreen" . "60 179 113")
("lightseagreen" . "32 178 170")
("palegreen" . "152 251 152")
("springgreen" . "0 255 127")
("lawngreen" . "124 252 0")
("green" . "0 255 0")
("chartreuse" . "127 255 0")
("mediumspringgreen" . "0 250 154")
("greenyellow" . "173 255 47")
("limegreen" . "50 205 50")
("yellowgreen" . "154 205 50")
("forestgreen" . "34 139 34")
("olivedrab" . "107 142 35")
("darkkhaki" . "189 183 107")
("khaki" . "240 230 140")
("palegoldenrod" . "238 232 170")
("lightgoldenrodyellow" . "250 250 210")
("lightyellow" . "255 255 224")
("yellow" . "255 255 0")
("gold" . "255 215 0")
("lightgoldenrod" . "238 221 130")
("goldenrod" . "218 165 32")
("darkgoldenrod" . "184 134 11")
("rosybrown" . "188 143 143")
("indianred" . "205 92 92")
("saddlebrown" . "139 69 19")
("sienna" . "160 82 45")
("peru" . "205 133 63")
("burlywood" . "222 184 135")
("beige" . "245 245 220")
("wheat" . "245 222 179")
("sandybrown" . "244 164 96")
("tan" . "210 180 140")
("chocolate" . "210 105 30")
("firebrick" . "178 34 34")
("brown" . "165 42 42")
("darksalmon" . "233 150 122")
("salmon" . "250 128 114")
("lightsalmon" . "255 160 122")
("orange" . "255 165 0")
("darkorange" . "255 140 0")
("coral" . "255 127 80")
("lightcoral" . "240 128 128")
("tomato" . "255 99 71")
("orangered" . "255 69 0")
("red" . "255 0 0")
("hotpink" . "255 105 180")
("deeppink" . "255 20 147")
("pink" . "255 192 203")
("lightpink" . "255 182 193")
("palevioletred" . "219 112 147")
("maroon" . "176 48 96")
("mediumvioletred" . "199 21 133")
("violetred" . "208 32 144")
("magenta" . "255 0 255")
("violet" . "238 130 238")
("plum" . "221 160 221")
("orchid" . "218 112 214")
("mediumorchid" . "186 85 211")
("darkorchid" . "153 50 204")
("darkviolet" . "148 0 211")
("blueviolet" . "138 43 226")
("purple" . "160 32 240")
("mediumpurple" . "147 112 219")
("thistle" . "216 191 216")
("snow1" . "255 250 250")
("snow2" . "238 233 233")
("snow3" . "205 201 201")
("snow4" . "139 137 137")
("seashell1" . "255 245 238")
("seashell2" . "238 229 222")
("seashell3" . "205 197 191")
("seashell4" . "139 134 130")
("antiquewhite1" . "255 239 219")
("antiquewhite2" . "238 223 204")
("antiquewhite3" . "205 192 176")
("antiquewhite4" . "139 131 120")
("bisque1" . "255 228 196")
("bisque2" . "238 213 183")
("bisque3" . "205 183 158")
("bisque4" . "139 125 107")
("peachpuff1" . "255 218 185")
("peachpuff2" . "238 203 173")
("peachpuff3" . "205 175 149")
("peachpuff4" . "139 119 101")
("navajowhite1" . "255 222 173")
("navajowhite2" . "238 207 161")
("navajowhite3" . "205 179 139")
("navajowhite4" . "139 121 94")
("lemonchiffon1" . "255 250 205")
("lemonchiffon2" . "238 233 191")
("lemonchiffon3" . "205 201 165")
("lemonchiffon4" . "139 137 112")
("cornsilk1" . "255 248 220")
("cornsilk2" . "238 232 205")
("cornsilk3" . "205 200 177")
("cornsilk4" . "139 136 120")
("ivory1" . "255 255 240")
("ivory2" . "238 238 224")
("ivory3" . "205 205 193")
("ivory4" . "139 139 131")
("honeydew1" . "240 255 240")
("honeydew2" . "224 238 224")
("honeydew3" . "193 205 193")
("honeydew4" . "131 139 131")
("lavenderblush1" . "255 240 245")
("lavenderblush2" . "238 224 229")
("lavenderblush3" . "205 193 197")
("lavenderblush4" . "139 131 134")
("mistyrose1" . "255 228 225")
("mistyrose2" . "238 213 210")
("mistyrose3" . "205 183 181")
("mistyrose4" . "139 125 123")
("azure1" . "240 255 255")
("azure2" . "224 238 238")
("azure3" . "193 205 205")
("azure4" . "131 139 139")
("slateblue1" . "131 111 255")
("slateblue2" . "122 103 238")
("slateblue3" . "105 89 205")
("slateblue4" . "71 60 139")
("royalblue1" . "72 118 255")
("royalblue2" . "67 110 238")
("royalblue3" . "58 95 205")
("royalblue4" . "39 64 139")
("blue1" . "0 0 255")
("blue2" . "0 0 238")
("blue3" . "0 0 205")
("blue4" . "0 0 139")
("dodgerblue1" . "30 144 255")
("dodgerblue2" . "28 134 238")
("dodgerblue3" . "24 116 205")
("dodgerblue4" . "16 78 139")
("steelblue1" . "99 184 255")
("steelblue2" . "92 172 238")
("steelblue3" . "79 148 205")
("steelblue4" . "54 100 139")
("deepskyblue1" . "0 191 255")
("deepskyblue2" . "0 178 238")
("deepskyblue3" . "0 154 205")
("deepskyblue4" . "0 104 139")
("skyblue1" . "135 206 255")
("skyblue2" . "126 192 238")
("skyblue3" . "108 166 205")
("skyblue4" . "74 112 139")
("lightskyblue1" . "176 226 255")
("lightskyblue2" . "164 211 238")
("lightskyblue3" . "141 182 205")
("lightskyblue4" . "96 123 139")
("lightsteelblue1" . "202 225 255")
("lightsteelblue2" . "188 210 238")
("lightsteelblue3" . "162 181 205")
("lightsteelblue4" . "110 123 139")
("lightblue1" . "191 239 255")
("lightblue2" . "178 223 238")
("lightblue3" . "154 192 205")
("lightblue4" . "104 131 139")
("lightcyan1" . "224 255 255")
("lightcyan2" . "209 238 238")
("lightcyan3" . "180 205 205")
("lightcyan4" . "122 139 139")
("paleturquoise1" . "187 255 255")
("paleturquoise2" . "174 238 238")
("paleturquoise3" . "150 205 205")
("paleturquoise4" . "102 139 139")
("cadetblue1" . "152 245 255")
("cadetblue2" . "142 229 238")
("cadetblue3" . "122 197 205")
("cadetblue4" . "83 134 139")
("turquoise1" . "0 245 255")
("turquoise2" . "0 229 238")
("turquoise3" . "0 197 205")
("turquoise4" . "0 134 139")
("cyan1" . "0 255 255")
("cyan2" . "0 238 238")
("cyan3" . "0 205 205")
("cyan4" . "0 139 139")
("aquamarine1" . "127 255 212")
("aquamarine2" . "118 238 198")
("aquamarine3" . "102 205 170")
("aquamarine4" . "69 139 116")
("darkseagreen1" . "193 255 193")
("darkseagreen2" . "180 238 180")
("darkseagreen3" . "155 205 155")
("darkseagreen4" . "105 139 105")
("seagreen1" . "84 255 159")
("seagreen2" . "78 238 148")
("seagreen3" . "67 205 128")
("seagreen4" . "46 139 87")
("palegreen1" . "154 255 154")
("palegreen2" . "144 238 144")
("palegreen3" . "124 205 124")
("palegreen4" . "84 139 84")
("springgreen1" . "0 255 127")
("springgreen2" . "0 238 118")
("springgreen3" . "0 205 102")
("springgreen4" . "0 139 69")
("green1" . "0 255 0")
("green2" . "0 238 0")
("green3" . "0 205 0")
("green4" . "0 139 0")
("chartreuse1" . "127 255 0")
("chartreuse2" . "118 238 0")
("chartreuse3" . "102 205 0")
("chartreuse4" . "69 139 0")
("olivedrab1" . "192 255 62")
("olivedrab2" . "179 238 58")
("olivedrab3" . "154 205 50")
("olivedrab4" . "105 139 34")
("darkolivegreen1" . "202 255 112")
("darkolivegreen2" . "188 238 104")
("darkolivegreen3" . "162 205 90")
("darkolivegreen4" . "110 139 61")
("khaki1" . "255 246 143")
("khaki2" . "238 230 133")
("khaki3" . "205 198 115")
("khaki4" . "139 134 78")
("lightgoldenrod1" . "255 236 139")
("lightgoldenrod2" . "238 220 130")
("lightgoldenrod3" . "205 190 112")
("lightgoldenrod4" . "139 129 76")
("lightyellow1" . "255 255 224")
("lightyellow2" . "238 238 209")
("lightyellow3" . "205 205 180")
("lightyellow4" . "139 139 122")
("yellow1" . "255 255 0")
("yellow2" . "238 238 0")
("yellow3" . "205 205 0")
("yellow4" . "139 139 0")
("gold1" . "255 215 0")
("gold2" . "238 201 0")
("gold3" . "205 173 0")
("gold4" . "139 117 0")
("goldenrod1" . "255 193 37")
("goldenrod2" . "238 180 34")
("goldenrod3" . "205 155 29")
("goldenrod4" . "139 105 20")
("darkgoldenrod1" . "255 185 15")
("darkgoldenrod2" . "238 173 14")
("darkgoldenrod3" . "205 149 12")
("darkgoldenrod4" . "139 101 8")
("rosybrown1" . "255 193 193")
("rosybrown2" . "238 180 180")
("rosybrown3" . "205 155 155")
("rosybrown4" . "139 105 105")
("indianred1" . "255 106 106")
("indianred2" . "238 99 99")
("indianred3" . "205 85 85")
("indianred4" . "139 58 58")
("sienna1" . "255 130 71")
("sienna2" . "238 121 66")
("sienna3" . "205 104 57")
("sienna4" . "139 71 38")
("burlywood1" . "255 211 155")
("burlywood2" . "238 197 145")
("burlywood3" . "205 170 125")
("burlywood4" . "139 115 85")
("wheat1" . "255 231 186")
("wheat2" . "238 216 174")
("wheat3" . "205 186 150")
("wheat4" . "139 126 102")
("tan1" . "255 165 79")
("tan2" . "238 154 73")
("tan3" . "205 133 63")
("tan4" . "139 90 43")
("chocolate1" . "255 127 36")
("chocolate2" . "238 118 33")
("chocolate3" . "205 102 29")
("chocolate4" . "139 69 19")
("firebrick1" . "255 48 48")
("firebrick2" . "238 44 44")
("firebrick3" . "205 38 38")
("firebrick4" . "139 26 26")
("brown1" . "255 64 64")
("brown2" . "238 59 59")
("brown3" . "205 51 51")
("brown4" . "139 35 35")
("salmon1" . "255 140 105")
("salmon2" . "238 130 98")
("salmon3" . "205 112 84")
("salmon4" . "139 76 57")
("lightsalmon1" . "255 160 122")
("lightsalmon2" . "238 149 114")
("lightsalmon3" . "205 129 98")
("lightsalmon4" . "139 87 66")
("orange1" . "255 165 0")
("orange2" . "238 154 0")
("orange3" . "205 133 0")
("orange4" . "139 90 0")
("darkorange1" . "255 127 0")
("darkorange2" . "238 118 0")
("darkorange3" . "205 102 0")
("darkorange4" . "139 69 0")
("coral1" . "255 114 86")
("coral2" . "238 106 80")
("coral3" . "205 91 69")
("coral4" . "139 62 47")
("tomato1" . "255 99 71")
("tomato2" . "238 92 66")
("tomato3" . "205 79 57")
("tomato4" . "139 54 38")
("orangered1" . "255 69 0")
("orangered2" . "238 64 0")
("orangered3" . "205 55 0")
("orangered4" . "139 37 0")
("red1" . "255 0 0")
("red2" . "238 0 0")
("red3" . "205 0 0")
("red4" . "139 0 0")
("deeppink1" . "255 20 147")
("deeppink2" . "238 18 137")
("deeppink3" . "205 16 118")
("deeppink4" . "139 10 80")
("hotpink1" . "255 110 180")
("hotpink2" . "238 106 167")
("hotpink3" . "205 96 144")
("hotpink4" . "139 58 98")
("pink1" . "255 181 197")
("pink2" . "238 169 184")
("pink3" . "205 145 158")
("pink4" . "139 99 108")
("lightpink1" . "255 174 185")
("lightpink2" . "238 162 173")
("lightpink3" . "205 140 149")
("lightpink4" . "139 95 101")
("palevioletred1" . "255 130 171")
("palevioletred2" . "238 121 159")
("palevioletred3" . "205 104 137")
("palevioletred4" . "139 71 93")
("maroon1" . "255 52 179")
("maroon2" . "238 48 167")
("maroon3" . "205 41 144")
("maroon4" . "139 28 98")
("violetred1" . "255 62 150")
("violetred2" . "238 58 140")
("violetred3" . "205 50 120")
("violetred4" . "139 34 82")
("magenta1" . "255 0 255")
("magenta2" . "238 0 238")
("magenta3" . "205 0 205")
("magenta4" . "139 0 139")
("orchid1" . "255 131 250")
("orchid2" . "238 122 233")
("orchid3" . "205 105 201")
("orchid4" . "139 71 137")
("plum1" . "255 187 255")
("plum2" . "238 174 238")
("plum3" . "205 150 205")
("plum4" . "139 102 139")
("mediumorchid1" . "224 102 255")
("mediumorchid2" . "209 95 238")
("mediumorchid3" . "180 82 205")
("mediumorchid4" . "122 55 139")
("darkorchid1" . "191 62 255")
("darkorchid2" . "178 58 238")
("darkorchid3" . "154 50 205")
("darkorchid4" . "104 34 139")
("purple1" . "155 48 255")
("purple2" . "145 44 238")
("purple3" . "125 38 205")
("purple4" . "85 26 139")
("mediumpurple1" . "171 130 255")
("mediumpurple2" . "159 121 238")
("mediumpurple3" . "137 104 205")
("mediumpurple4" . "93 71 139")
("thistle1" . "255 225 255")
("thistle2" . "238 210 238")
("thistle3" . "205 181 205")
("thistle4" . "139 123 139")
("grey0" . "0 0 0")
("grey1" . "3 3 3")
("grey2" . "5 5 5")
("grey3" . "8 8 8")
("grey4" . "10 10 10")
("grey5" . "13 13 13")
("grey6" . "15 15 15")
("grey7" . "18 18 18")
("grey8" . "20 20 20")
("grey9" . "23 23 23")
("grey10" . "26 26 26")
("grey11" . "28 28 28")
("grey12" . "31 31 31")
("grey13" . "33 33 33")
("grey14" . "36 36 36")
("grey15" . "38 38 38")
("grey16" . "41 41 41")
("grey17" . "43 43 43")
("grey18" . "46 46 46")
("grey19" . "48 48 48")
("grey20" . "51 51 51")
("grey21" . "54 54 54")
("grey22" . "56 56 56")
("grey23" . "59 59 59")
("grey24" . "61 61 61")
("grey25" . "64 64 64")
("grey26" . "66 66 66")
("grey27" . "69 69 69")
("grey28" . "71 71 71")
("grey29" . "74 74 74")
("grey30" . "77 77 77")
("grey31" . "79 79 79")
("grey32" . "82 82 82")
("grey33" . "84 84 84")
("grey34" . "87 87 87")
("grey35" . "89 89 89")
("grey36" . "92 92 92")
("grey37" . "94 94 94")
("grey38" . "97 97 97")
("grey39" . "99 99 99")
("grey40" . "102 102 102")
("grey41" . "105 105 105")
("grey42" . "107 107 107")
("grey43" . "110 110 110")
("grey44" . "112 112 112")
("grey45" . "115 115 115")
("grey46" . "117 117 117")
("grey47" . "120 120 120")
("grey48" . "122 122 122")
("grey49" . "125 125 125")
("grey50" . "127 127 127")
("grey51" . "130 130 130")
("grey52" . "133 133 133")
("grey53" . "135 135 135")
("grey54" . "138 138 138")
("grey55" . "140 140 140")
("grey56" . "143 143 143")
("grey57" . "145 145 145")
("grey58" . "148 148 148")
("grey59" . "150 150 150")
("grey60" . "153 153 153")
("grey61" . "156 156 156")
("grey62" . "158 158 158")
("grey63" . "161 161 161")
("grey64" . "163 163 163")
("grey65" . "166 166 166")
("grey66" . "168 168 168")
("grey67" . "171 171 171")
("grey68" . "173 173 173")
("grey69" . "176 176 176")
("grey70" . "179 179 179")
("grey71" . "181 181 181")
("grey72" . "184 184 184")
("grey73" . "186 186 186")
("grey74" . "189 189 189")
("grey75" . "191 191 191")
("grey76" . "194 194 194")
("grey77" . "196 196 196")
("grey78" . "199 199 199")
("grey79" . "201 201 201")
("grey80" . "204 204 204")
("grey81" . "207 207 207")
("grey82" . "209 209 209")
("grey83" . "212 212 212")
("grey84" . "214 214 214")
("grey85" . "217 217 217")
("grey86" . "219 219 219")
("grey87" . "222 222 222")
("grey88" . "224 224 224")
("grey89" . "227 227 227")
("grey90" . "229 229 229")
("grey91" . "232 232 232")
("grey92" . "235 235 235")
("grey93" . "237 237 237")
("grey94" . "240 240 240")
("grey95" . "242 242 242")
("grey96" . "245 245 245")
("grey97" . "247 247 247")
("grey98" . "250 250 250")
("grey99" . "252 252 252")
("grey100" . "255 255 255")
("darkgrey" . "169 169 169")
("darkblue" . "0 0 139")
("darkcyan" . "0 139 139")
("darkmagenta" . "139 0 139")
("darkred" . "139 0 0")
("lightgreen" . "144 238 144")
("lightred" . "255 127 127")))
(define (%convert-color str)
(let ((col (assoc str *skribe-rgb-alist*)))
(cond
(col
(let* ((p (open-input-string (cdr col)))
(r (read p))
(g (read p))
(b (read p)))
(values r g b)))
((and (string? str) (eq? (string-ref str 0) #\#) (= (string-length str) 7))
(values (string->number (substring str 1 3) 16)
(string->number (substring str 3 5) 16)
(string->number (substring str 5 7) 16)))
((and (string? str) (eq? (string-ref str 0) #\#) (= (string-length str) 13))
(values (string->number (substring str 1 5) 16)
(string->number (substring str 5 9) 16)
(string->number (substring str 9 13) 16)))
(else
(values 0 0 0)))))
;;;
;;; SKRIBE-COLOR->RGB
;;;
(define (skribe-color->rgb spec)
(cond
((string? spec) (%convert-color spec))
((integer? spec)
(values (bitwise-and #xff (arithmetic-shift spec -16))
(bitwise-and #xff (arithmetic-shift spec -8))
(bitwise-and #xff spec)))
(else
(values 0 0 0))))
;;;
;;; SKRIBE-GET-USED-COLORS
;;;
(define (skribe-get-used-colors)
*used-colors*)
;;;
;;; SKRIBE-USE-COLOR!
;;;
(define (skribe-use-color! color)
(set! *used-colors* (cons color *used-colors*))
color)
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