1/* 2 * "$Id: pwg-media.c 11433 2013-11-20 18:57:44Z msweet $" 3 * 4 * PWG media name API implementation for CUPS. 5 * 6 * Copyright 2009-2013 by Apple Inc. 7 * 8 * These coded instructions, statements, and computer programs are the 9 * property of Apple Inc. and are protected by Federal copyright 10 * law. Distribution and use rights are outlined in the file "LICENSE.txt" 11 * which should have been included with this file. If this file is 12 * file is missing or damaged, see the license at "http://www.cups.org/". 13 * 14 * This file is subject to the Apple OS-Developed Software exception. 15 * 16 * Contents: 17 * 18 * pwgFormatSizeName() - Generate a PWG self-describing media size name. 19 * pwgInitSize() - Initialize a pwg_size_t structure using IPP Job 20 * Template attributes. 21 * pwgMediaForLegacy() - Find a PWG media size by ISO/IPP legacy name. 22 * pwgMediaForPPD() - Find a PWG media size by Adobe PPD name. 23 * pwgMediaForPWG() - Find a PWG media size by 5101.1 self-describing 24 * name. 25 * pwgMediaForSize() - Get the PWG media size for the given 26 * dimensions. 27 * _pwgMediaTable() - Return the internal media size table. 28 * pwg_compare_legacy() - Compare two sizes using the legacy names. 29 * pwg_compare_ppd() - Compare two sizes using the PPD names. 30 * pwg_compare_pwg() - Compare two sizes using the PWG names. 31 * pwg_format_inches() - Convert and format PWG units as inches. 32 * pwg_format_millimeters() - Convert and format PWG units as millimeters. 33 * pwg_scan_measurement() - Scan a measurement in inches or millimeters. 34 */ 35 36/* 37 * Include necessary headers... 38 */ 39 40#include "cups-private.h" 41#include <math.h> 42 43 44/* 45 * Local macros... 46 */ 47 48#define _PWG_MEDIA_IN(p,l,a,x,y) {p, l, a, (int)(x * 2540), (int)(y * 2540)} 49#define _PWG_MEDIA_MM(p,l,a,x,y) {p, l, a, (int)(x * 100), (int)(y * 100)} 50 51 52/* 53 * Local functions... 54 */ 55 56static int pwg_compare_legacy(pwg_media_t *a, pwg_media_t *b); 57static int pwg_compare_pwg(pwg_media_t *a, pwg_media_t *b); 58static int pwg_compare_ppd(pwg_media_t *a, pwg_media_t *b); 59static char *pwg_format_inches(char *buf, size_t bufsize, int val); 60static char *pwg_format_millimeters(char *buf, size_t bufsize, int val); 61static int pwg_scan_measurement(const char *buf, char **bufptr, int numer, 62 int denom); 63 64 65/* 66 * Local globals... 67 */ 68 69static pwg_media_t const cups_pwg_media[] = 70{ /* Media size lookup table */ 71 /* North American Standard Sheet Media Sizes */ 72 _PWG_MEDIA_IN("na_index-3x5_3x5in", NULL, "3x5", 3, 5), 73 _PWG_MEDIA_IN("na_personal_3.625x6.5in", NULL, "EnvPersonal", 3.625, 6.5), 74 _PWG_MEDIA_IN("na_monarch_3.875x7.5in", "monarch-envelope", "EnvMonarch", 3.875, 7.5), 75 _PWG_MEDIA_IN("na_number-9_3.875x8.875in", "na-number-9-envelope", "Env9", 3.875, 8.875), 76 _PWG_MEDIA_IN("na_index-4x6_4x6in", NULL, "4x6", 4, 6), 77 _PWG_MEDIA_IN("na_number-10_4.125x9.5in", "na-number-10-envelope", "Env10", 4.125, 9.5), 78 _PWG_MEDIA_IN("na_a2_4.375x5.75in", NULL, "EnvA2", 4.375, 5.75), 79 _PWG_MEDIA_IN("na_number-11_4.5x10.375in", NULL, "Env11", 4.5, 10.375), 80 _PWG_MEDIA_IN("na_number-12_4.75x11in", NULL, "Env12", 4.75, 11), 81 _PWG_MEDIA_IN("na_5x7_5x7in", NULL, "5x7", 5, 7), 82 _PWG_MEDIA_IN("na_index-5x8_5x8in", NULL, "5x8", 5, 8), 83 _PWG_MEDIA_IN("na_number-14_5x11.5in", NULL, "Env14", 5, 11.5), 84 _PWG_MEDIA_IN("na_invoice_5.5x8.5in", "invoice", "Statement", 5.5, 8.5), 85 _PWG_MEDIA_IN("na_index-4x6-ext_6x8in", NULL, NULL, 6, 8), 86 _PWG_MEDIA_IN("na_6x9_6x9in", "na-6x9-envelope", "6x9", 6, 9), 87 _PWG_MEDIA_IN("na_c5_6.5x9.5in", NULL, "6.5x9.5", 6.5, 9.5), 88 _PWG_MEDIA_IN("na_7x9_7x9in", "na-7x9-envelope", "7x9", 7, 9), 89 _PWG_MEDIA_IN("na_executive_7.25x10.5in", "executive", "Executive", 7.25, 10.5), 90 _PWG_MEDIA_IN("na_govt-letter_8x10in", "na-8x10", "8x10", 8, 10), 91 _PWG_MEDIA_IN("na_govt-legal_8x13in", NULL, "8x13", 8, 13), 92 _PWG_MEDIA_IN("na_quarto_8.5x10.83in", "quarto", "Quarto", 8.5, 10.83), 93 _PWG_MEDIA_IN("na_letter_8.5x11in", "na-letter", "Letter", 8.5, 11), 94 _PWG_MEDIA_IN("na_fanfold-eur_8.5x12in", NULL, "FanFoldGerman", 8.5, 12), 95 _PWG_MEDIA_IN("na_letter-plus_8.5x12.69in", NULL, "LetterPlus", 8.5, 12.69), 96 _PWG_MEDIA_IN("na_foolscap_8.5x13in", NULL, "FanFoldGermanLegal", 8.5, 13), 97 _PWG_MEDIA_IN("na_oficio_8.5x13.4in", NULL, "Oficio", 8.5, 13.4), 98 _PWG_MEDIA_IN("na_legal_8.5x14in", "na-legal", "Legal", 8.5, 14), 99 _PWG_MEDIA_IN("na_super-a_8.94x14in", NULL, "SuperA", 8.94, 14), 100 _PWG_MEDIA_IN("na_9x11_9x11in", "na-9x11-envelope", "9x11", 9, 11), 101 _PWG_MEDIA_IN("na_arch-a_9x12in", "arch-a", "ARCHA", 9, 12), 102 _PWG_MEDIA_IN("na_letter-extra_9.5x12in", NULL, "LetterExtra", 9.5, 12), 103 _PWG_MEDIA_IN("na_legal-extra_9.5x15in", NULL, "LegalExtra", 9.5, 15), 104 _PWG_MEDIA_IN("na_10x11_10x11in", NULL, "10x11", 10, 11), 105 _PWG_MEDIA_IN("na_10x13_10x13in", "na-10x13-envelope", "10x13", 10, 13), 106 _PWG_MEDIA_IN("na_10x14_10x14in", "na-10x14-envelope", "10x14", 10, 14), 107 _PWG_MEDIA_IN("na_10x15_10x15in", "na-10x15-envelope", "10x15", 10, 15), 108 _PWG_MEDIA_IN("na_11x12_11x12in", NULL, "11x12", 11, 12), 109 _PWG_MEDIA_IN("na_edp_11x14in", NULL, "11x14", 11, 14), 110 _PWG_MEDIA_IN("na_fanfold-us_11x14.875in", NULL, NULL, 11, 14.875), 111 _PWG_MEDIA_IN("na_11x15_11x15in", NULL, "11x15", 11, 15), 112 _PWG_MEDIA_IN("na_ledger_11x17in", "tabloid", "Tabloid", 11, 17), 113 _PWG_MEDIA_IN("na_eur-edp_12x14in", NULL, NULL, 12, 14), 114 _PWG_MEDIA_IN("na_arch-b_12x18in", "arch-b", "ARCHB", 12, 18), 115 _PWG_MEDIA_IN("na_12x19_12x19in", NULL, "12x19", 12, 19), 116 _PWG_MEDIA_IN("na_b-plus_12x19.17in", NULL, "SuperB", 12, 19.17), 117 _PWG_MEDIA_IN("na_super-b_13x19in", "super-b", "13x19", 13, 19), 118 _PWG_MEDIA_IN("na_c_17x22in", "c", "AnsiC", 17, 22), 119 _PWG_MEDIA_IN("na_arch-c_18x24in", "arch-c", "ARCHC", 18, 24), 120 _PWG_MEDIA_IN("na_d_22x34in", "d", "AnsiD", 22, 34), 121 _PWG_MEDIA_IN("na_arch-d_24x36in", "arch-d", "ARCHD", 24, 36), 122 _PWG_MEDIA_IN("asme_f_28x40in", "f", NULL, 28, 40), 123 _PWG_MEDIA_IN("na_wide-format_30x42in", NULL, NULL, 30, 42), 124 _PWG_MEDIA_IN("na_e_34x44in", "e", "AnsiE", 34, 44), 125 _PWG_MEDIA_IN("na_arch-e_36x48in", "arch-e", "ARCHE", 36, 48), 126 _PWG_MEDIA_IN("na_f_44x68in", NULL, "AnsiF", 44, 68), 127 128 /* ISO Standard Sheet Media Sizes */ 129 _PWG_MEDIA_MM("iso_a10_26x37mm", "iso-a10", "A10", 26, 37), 130 _PWG_MEDIA_MM("iso_a9_37x52mm", "iso-a9", "A9", 37, 52), 131 _PWG_MEDIA_MM("iso_a8_52x74mm", "iso-a8", "A8", 52, 74), 132 _PWG_MEDIA_MM("iso_a7_74x105mm", "iso-a7", "A7", 74, 105), 133 _PWG_MEDIA_MM("iso_a6_105x148mm", "iso-a6", "A6", 105, 148), 134 _PWG_MEDIA_MM("iso_a5_148x210mm", "iso-a5", "A5", 148, 210), 135 _PWG_MEDIA_MM("iso_a5-extra_174x235mm", NULL, "A5Extra", 174, 235), 136 _PWG_MEDIA_MM("iso_a4_210x297mm", "iso-a4", "A4", 210, 297), 137 _PWG_MEDIA_MM("iso_a4-tab_225x297mm", NULL, "A4Tab", 225, 297), 138 _PWG_MEDIA_MM("iso_a4-extra_235.5x322.3mm", NULL, "A4Extra", 235.5, 322.3), 139 _PWG_MEDIA_MM("iso_a3_297x420mm", "iso-a3", "A3", 297, 420), 140 _PWG_MEDIA_MM("iso_a4x3_297x630mm", "iso-a4x3", NULL, 297, 630), 141 _PWG_MEDIA_MM("iso_a4x4_297x841mm", "iso-a4x4", NULL, 297, 841), 142 _PWG_MEDIA_MM("iso_a4x5_297x1051mm", "iso-a4x5", NULL, 297, 1051), 143 _PWG_MEDIA_MM("iso_a4x6_297x1261mm", "iso-a4x6", NULL, 297, 1261), 144 _PWG_MEDIA_MM("iso_a4x7_297x1471mm", "iso-a4x7", NULL, 297, 1471), 145 _PWG_MEDIA_MM("iso_a4x8_297x1682mm", "iso-a4x8", NULL, 297, 1682), 146 _PWG_MEDIA_MM("iso_a4x9_297x1892mm", "iso-a4x9", NULL, 297, 1892), 147 _PWG_MEDIA_MM("iso_a3-extra_322x445mm", "iso-a3-extra", "A3Extra", 322, 445), 148 _PWG_MEDIA_MM("iso_a2_420x594mm", "iso-a2", "A2", 420, 594), 149 _PWG_MEDIA_MM("iso_a3x3_420x891mm", "iso-a3x3", NULL, 420, 891), 150 _PWG_MEDIA_MM("iso_a3x4_420x1189mm", "iso-a3x4", NULL, 420, 1189), 151 _PWG_MEDIA_MM("iso_a3x5_420x1486mm", "iso-a3x5", NULL, 420, 1486), 152 _PWG_MEDIA_MM("iso_a3x6_420x1783mm", "iso-a3x6", NULL, 420, 1783), 153 _PWG_MEDIA_MM("iso_a3x7_420x2080mm", "iso-a3x7", NULL, 420, 2080), 154 _PWG_MEDIA_MM("iso_a1_594x841mm", "iso-a1", "A1", 594, 841), 155 _PWG_MEDIA_MM("iso_a2x3_594x1261mm", "iso-a2x3", NULL, 594, 1261), 156 _PWG_MEDIA_MM("iso_a2x4_594x1682mm", "iso-a2x4", NULL, 594, 1682), 157 _PWG_MEDIA_MM("iso_a2x5_594x2102mm", "iso-a2x5", NULL, 594, 2102), 158 _PWG_MEDIA_MM("iso_a0_841x1189mm", "iso-a0", "A0", 841, 1189), 159 _PWG_MEDIA_MM("iso_a1x3_841x1783mm", "iso-a1x3", NULL, 841, 1783), 160 _PWG_MEDIA_MM("iso_a1x4_841x2378mm", "iso-a1x4", NULL, 841, 2378), 161 _PWG_MEDIA_MM("iso_2a0_1189x1682mm", NULL, NULL, 1189, 1682), 162 _PWG_MEDIA_MM("iso_a0x3_1189x2523mm", NULL, NULL, 1189, 2523), 163 _PWG_MEDIA_MM("iso_b10_31x44mm", "iso-b10", "ISOB10", 31, 44), 164 _PWG_MEDIA_MM("iso_b9_44x62mm", "iso-b9", "ISOB9", 44, 62), 165 _PWG_MEDIA_MM("iso_b8_62x88mm", "iso-b8", "ISOB8", 62, 88), 166 _PWG_MEDIA_MM("iso_b7_88x125mm", "iso-b7", "ISOB7", 88, 125), 167 _PWG_MEDIA_MM("iso_b6_125x176mm", "iso-b6", "ISOB6", 125, 176), 168 _PWG_MEDIA_MM("iso_b6c4_125x324mm", NULL, NULL, 125, 324), 169 _PWG_MEDIA_MM("iso_b5_176x250mm", "iso-b5", "ISOB5", 176, 250), 170 _PWG_MEDIA_MM("iso_b5-extra_201x276mm", NULL, "ISOB5Extra", 201, 276), 171 _PWG_MEDIA_MM("iso_b4_250x353mm", "iso-b4", "ISOB4", 250, 353), 172 _PWG_MEDIA_MM("iso_b3_353x500mm", "iso-b3", "ISOB3", 353, 500), 173 _PWG_MEDIA_MM("iso_b2_500x707mm", "iso-b2", "ISOB2", 500, 707), 174 _PWG_MEDIA_MM("iso_b1_707x1000mm", "iso-b1", "ISOB1", 707, 1000), 175 _PWG_MEDIA_MM("iso_b0_1000x1414mm", "iso-b0", "ISOB0", 1000, 1414), 176 _PWG_MEDIA_MM("iso_c10_28x40mm", "iso-c10", NULL, 28, 40), 177 _PWG_MEDIA_MM("iso_c9_40x57mm", "iso-c9", NULL, 40, 57), 178 _PWG_MEDIA_MM("iso_c8_57x81mm", "iso-c8", NULL, 57, 81), 179 _PWG_MEDIA_MM("iso_c7_81x114mm", "iso-c7", "EnvC7", 81, 114), 180 _PWG_MEDIA_MM("iso_c7c6_81x162mm", NULL, NULL, 81, 162), 181 _PWG_MEDIA_MM("iso_c6_114x162mm", "iso-c6", "EnvC6", 114, 162), 182 _PWG_MEDIA_MM("iso_c6c5_114x229mm", NULL, "EnvC65", 114, 229), 183 _PWG_MEDIA_MM("iso_c5_162x229mm", "iso-c5", "EnvC5", 162, 229), 184 _PWG_MEDIA_MM("iso_c4_229x324mm", "iso-c4", "EnvC4", 229, 324), 185 _PWG_MEDIA_MM("iso_c3_324x458mm", "iso-c3", "EnvC3", 324, 458), 186 _PWG_MEDIA_MM("iso_c2_458x648mm", "iso-c2", "EnvC2", 458, 648), 187 _PWG_MEDIA_MM("iso_c1_648x917mm", "iso-c1", "EnvC1", 648, 917), 188 _PWG_MEDIA_MM("iso_c0_917x1297mm", "iso-c0", "EnvC0", 917, 1297), 189 _PWG_MEDIA_MM("iso_dl_110x220mm", "iso-designated", "EnvDL", 110, 220), 190 _PWG_MEDIA_MM("iso_ra4_215x305mm", "iso-ra4", NULL, 215, 305), 191 _PWG_MEDIA_MM("iso_sra4_225x320mm", "iso-sra4", NULL, 225, 320), 192 _PWG_MEDIA_MM("iso_ra3_305x430mm", "iso-ra3", NULL, 305, 430), 193 _PWG_MEDIA_MM("iso_sra3_320x450mm", "iso-sra3", NULL, 320, 450), 194 _PWG_MEDIA_MM("iso_ra2_430x610mm", "iso-ra2", NULL, 430, 610), 195 _PWG_MEDIA_MM("iso_sra2_450x640mm", "iso-sra2", NULL, 450, 640), 196 _PWG_MEDIA_MM("iso_ra1_610x860mm", "iso-ra1", NULL, 610, 860), 197 _PWG_MEDIA_MM("iso_sra1_640x900mm", "iso-sra1", NULL, 640, 900), 198 _PWG_MEDIA_MM("iso_ra0_860x1220mm", "iso-ra0", NULL, 860, 1220), 199 _PWG_MEDIA_MM("iso_sra0_900x1280mm", "iso-sra0", NULL, 900, 1280), 200 201 /* Japanese Standard Sheet Media Sizes */ 202 _PWG_MEDIA_MM("jis_b10_32x45mm", "jis-b10", "B10", 32, 45), 203 _PWG_MEDIA_MM("jis_b9_45x64mm", "jis-b9", "B9", 45, 64), 204 _PWG_MEDIA_MM("jis_b8_64x91mm", "jis-b8", "B8", 64, 91), 205 _PWG_MEDIA_MM("jis_b7_91x128mm", "jis-b7", "B7", 91, 128), 206 _PWG_MEDIA_MM("jis_b6_128x182mm", "jis-b6", "B6", 128, 182), 207 _PWG_MEDIA_MM("jis_b5_182x257mm", "jis-b5", "B5", 182, 257), 208 _PWG_MEDIA_MM("jis_b4_257x364mm", "jis-b4", "B4", 257, 364), 209 _PWG_MEDIA_MM("jis_b3_364x515mm", "jis-b3", "B3", 364, 515), 210 _PWG_MEDIA_MM("jis_b2_515x728mm", "jis-b2", "B2", 515, 728), 211 _PWG_MEDIA_MM("jis_b1_728x1030mm", "jis-b1", "B1", 728, 1030), 212 _PWG_MEDIA_MM("jis_b0_1030x1456mm", "jis-b0", "B0", 1030, 1456), 213 _PWG_MEDIA_MM("jis_exec_216x330mm", NULL, NULL, 216, 330), 214 _PWG_MEDIA_MM("jpn_kaku2_240x332mm", NULL, "EnvKaku2", 240, 332), 215 _PWG_MEDIA_MM("jpn_kaku3_216x277mm", NULL, "EnvKaku3", 216, 277), 216 _PWG_MEDIA_MM("jpn_kaku4_197x267mm", NULL, "EnvKaku4", 197, 267), 217 _PWG_MEDIA_MM("jpn_kaku5_190x240mm", NULL, "EnvKaku5", 190, 240), 218 _PWG_MEDIA_MM("jpn_kaku7_142x205mm", NULL, "EnvKaku7", 142, 205), 219 _PWG_MEDIA_MM("jpn_kaku8_119x197mm", NULL, "EnvKaku8", 119, 197), 220 _PWG_MEDIA_MM("jpn_chou4_90x205mm", NULL, "EnvChou4", 90, 205), 221 _PWG_MEDIA_MM("jpn_hagaki_100x148mm", NULL, "Postcard", 100, 148), 222 _PWG_MEDIA_MM("jpn_you4_105x235mm", NULL, "EnvYou4", 105, 235), 223 _PWG_MEDIA_MM("jpn_you6_98x190mm", NULL, "EnvYou6", 98, 190), 224 _PWG_MEDIA_MM("jpn_chou2_111.1x146mm", NULL, NULL, 111.1, 146), 225 _PWG_MEDIA_MM("jpn_chou3_120x235mm", NULL, "EnvChou3", 120, 235), 226 _PWG_MEDIA_MM("jpn_chou40_90x225mm", NULL, "EnvChou40", 90, 225), 227 _PWG_MEDIA_MM("jpn_oufuku_148x200mm", NULL, "DoublePostcardRotated", 148, 200), 228 _PWG_MEDIA_MM("jpn_kahu_240x322.1mm", NULL, NULL, 240, 322.1), 229 230 /* Chinese Standard Sheet Media Sizes */ 231 _PWG_MEDIA_MM("prc_32k_97x151mm", NULL, "PRC32K", 97, 151), 232 _PWG_MEDIA_MM("prc_1_102x165mm", NULL, "EnvPRC1", 102, 165), 233 _PWG_MEDIA_MM("prc_2_102x176mm", NULL, "EnvPRC2", 102, 176), 234 _PWG_MEDIA_MM("prc_4_110x208mm", NULL, "EnvPRC4", 110, 208), 235 _PWG_MEDIA_MM("prc_8_120x309mm", NULL, "EnvPRC8", 120, 309), 236 _PWG_MEDIA_MM("prc_6_120x320mm", NULL, NULL, 120, 320), 237 _PWG_MEDIA_MM("prc_16k_146x215mm", NULL, "PRC16K", 146, 215), 238 _PWG_MEDIA_MM("prc_7_160x230mm", NULL, "EnvPRC7", 160, 230), 239 _PWG_MEDIA_MM("om_juuro-ku-kai_198x275mm", NULL, NULL, 198, 275), 240 _PWG_MEDIA_MM("om_pa-kai_267x389mm", NULL, NULL, 267, 389), 241 _PWG_MEDIA_MM("om_dai-pa-kai_275x395mm", NULL, NULL, 275, 395), 242 243 /* Chinese Standard Sheet Media Inch Sizes */ 244 _PWG_MEDIA_IN("roc_16k_7.75x10.75in", NULL, "roc16k", 7.75, 10.75), 245 _PWG_MEDIA_IN("roc_8k_10.75x15.5in", NULL, "roc8k", 10.75, 15.5), 246 247 /* Other English Standard Sheet Media Sizes */ 248 _PWG_MEDIA_IN("oe_photo-l_3.5x5in", NULL, "3.5x5", 3.5, 5), 249 250 /* Other Metric Standard Sheet Media Sizes */ 251 _PWG_MEDIA_MM("om_small-photo_100x150mm", NULL, "om_small-photo", 100, 150), 252 _PWG_MEDIA_MM("om_italian_110x230mm", NULL, "EnvItalian", 110, 230), 253 _PWG_MEDIA_MM("om_large-photo_200x300", NULL, "om_large-photo", 200, 300), 254 _PWG_MEDIA_MM("om_folio_210x330mm", "folio", "Folio", 210, 330), 255 _PWG_MEDIA_MM("om_folio-sp_215x315mm", NULL, "FolioSP", 215, 315), 256 _PWG_MEDIA_MM("om_invite_220x220mm", NULL, "EnvInvite", 220, 220), 257 _PWG_MEDIA_MM("om_small-photo_100x200mm", NULL, "om_wide-photo", 100, 200) 258}; 259 260 261/* 262 * 'pwgFormatSizeName()' - Generate a PWG self-describing media size name. 263 * 264 * This function generates a PWG self-describing media size name of the form 265 * "prefix_name_WIDTHxLENGTHunits". The prefix is typically "custom" or "roll" 266 * for user-supplied sizes but can also be "disc", "iso", "jis", "jpn", "na", 267 * "oe", "om", "prc", or "roc". A value of @code NULL@ automatically chooses 268 * "oe" or "om" depending on the units. 269 * 270 * The size name may only contain lowercase letters, numbers, "-", and ".". If 271 * @code NULL@ is passed, the size name will contain the formatted dimensions. 272 * 273 * The width and length are specified in hundredths of millimeters, equivalent 274 * to 1/100000th of a meter or 1/2540th of an inch. The width, length, and 275 * units used for the generated size name are calculated automatically if the 276 * units string is @code NULL@, otherwise inches ("in") or millimeters ("mm") 277 * are used. 278 * 279 * @since CUPS 1.7/OS X 10.9@ 280 */ 281 282int /* O - 1 on success, 0 on failure */ 283pwgFormatSizeName(char *keyword, /* I - Keyword buffer */ 284 size_t keysize, /* I - Size of keyword buffer */ 285 const char *prefix, /* I - Prefix for PWG size or @code NULL@ for automatic */ 286 const char *name, /* I - Size name or @code NULL@ */ 287 int width, /* I - Width of page in 2540ths */ 288 int length, /* I - Length of page in 2540ths */ 289 const char *units) /* I - Units - "in", "mm", or @code NULL@ for automatic */ 290{ 291 char usize[12 + 1 + 12 + 3], /* Unit size: NNNNNNNNNNNNxNNNNNNNNNNNNuu */ 292 *uptr; /* Pointer into unit size */ 293 char *(*format)(char *, size_t, int); 294 /* Formatting function */ 295 296 297 /* 298 * Range check input... 299 */ 300 301 DEBUG_printf(("pwgFormatSize(keyword=%p, keysize=" CUPS_LLFMT 302 ", prefix=\"%s\", name=\"%s\", width=%d, length=%d, " 303 "units=\"%s\")", keyword, CUPS_LLCAST keysize, prefix, name, 304 width, length, units)); 305 306 if (keyword) 307 *keyword = '\0'; 308 309 if (!keyword || keysize < 32 || width < 0 || length < 0 || 310 (units && strcmp(units, "in") && strcmp(units, "mm"))) 311 { 312 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Invalid media name arguments."), 313 1); 314 return (0); 315 } 316 317 if (name) 318 { 319 /* 320 * Validate name... 321 */ 322 323 const char *nameptr; /* Pointer into name */ 324 325 for (nameptr = name; *nameptr; nameptr ++) 326 if (!(*nameptr >= 'a' && *nameptr <= 'z') && 327 !(*nameptr >= '0' && *nameptr <= '9') && 328 *nameptr != '.' && *nameptr != '-') 329 { 330 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, 331 _("Invalid media name arguments."), 1); 332 return (0); 333 } 334 } 335 else 336 name = usize; 337 338 339 if (!units) 340 { 341 if ((width % 635) == 0 && (length % 635) == 0) 342 { 343 /* 344 * Use inches since the size is a multiple of 1/4 inch. 345 */ 346 347 units = "in"; 348 } 349 else 350 { 351 /* 352 * Use millimeters since the size is not a multiple of 1/4 inch. 353 */ 354 355 units = "mm"; 356 } 357 } 358 359 if (!strcmp(units, "in")) 360 { 361 format = pwg_format_inches; 362 363 if (!prefix) 364 prefix = "oe"; 365 } 366 else 367 { 368 format = pwg_format_millimeters; 369 370 if (!prefix) 371 prefix = "om"; 372 } 373 374 /* 375 * Format the size string... 376 */ 377 378 uptr = usize; 379 (*format)(uptr, sizeof(usize) - (uptr - usize), width); 380 uptr += strlen(uptr); 381 *uptr++ = 'x'; 382 (*format)(uptr, sizeof(usize) - (uptr - usize), length); 383 uptr += strlen(uptr); 384 385 /* 386 * Safe because usize can hold up to 12 + 1 + 12 + 4 bytes. 387 */ 388 389 memcpy(uptr, units, 3); 390 391 /* 392 * Format the name... 393 */ 394 395 snprintf(keyword, keysize, "%s_%s_%s", prefix, name, usize); 396 397 return (1); 398} 399 400/* For OS X 10.8 and earlier... */ 401void _pwgGenerateSize(char *keyword, size_t keysize, const char *prefix, 402 const char *name, int width, int length) 403{ pwgFormatSizeName(keyword, keysize, prefix, name, width, length, NULL); } 404 405 406/* 407 * 'pwgInitSize()' - Initialize a pwg_size_t structure using IPP Job Template 408 * attributes. 409 * 410 * This function initializes a pwg_size_t structure from an IPP "media" or 411 * "media-col" attribute in the specified IPP message. 0 is returned if neither 412 * attribute is found in the message or the values are not valid. 413 * 414 * The "margins_set" variable is initialized to 1 if any "media-xxx-margin" 415 * member attribute was specified in the "media-col" Job Template attribute, 416 * otherwise it is initialized to 0. 417 * 418 * @since CUPS 1.7/OS X 10.9@ 419 */ 420 421int /* O - 1 if size was initialized, 0 otherwise */ 422pwgInitSize(pwg_size_t *size, /* I - Size to initialize */ 423 ipp_t *job, /* I - Job template attributes */ 424 int *margins_set) /* O - 1 if margins were set, 0 otherwise */ 425{ 426 ipp_attribute_t *media, /* media attribute */ 427 *media_bottom_margin, /* media-bottom-margin member attribute */ 428 *media_col, /* media-col attribute */ 429 *media_left_margin, /* media-left-margin member attribute */ 430 *media_right_margin, /* media-right-margin member attribute */ 431 *media_size, /* media-size member attribute */ 432 *media_top_margin, /* media-top-margin member attribute */ 433 *x_dimension, /* x-dimension member attribute */ 434 *y_dimension; /* y-dimension member attribute */ 435 pwg_media_t *pwg; /* PWG media value */ 436 437 438 /* 439 * Range check input... 440 */ 441 442 if (!size || !job || !margins_set) 443 return (0); 444 445 /* 446 * Look for media-col and then media... 447 */ 448 449 memset(size, 0, sizeof(pwg_size_t)); 450 *margins_set = 0; 451 452 if ((media_col = ippFindAttribute(job, "media-col", 453 IPP_TAG_BEGIN_COLLECTION)) != NULL) 454 { 455 /* 456 * Got media-col, look for media-size member attribute... 457 */ 458 459 if ((media_size = ippFindAttribute(media_col->values[0].collection, 460 "media-size", 461 IPP_TAG_BEGIN_COLLECTION)) != NULL) 462 { 463 /* 464 * Got media-size, look for x-dimension and y-dimension member 465 * attributes... 466 */ 467 468 x_dimension = ippFindAttribute(media_size->values[0].collection, 469 "x-dimension", IPP_TAG_INTEGER); 470 y_dimension = ippFindAttribute(media_size->values[0].collection, 471 "y-dimension", IPP_TAG_INTEGER); 472 473 if (x_dimension && y_dimension) 474 { 475 size->width = x_dimension->values[0].integer; 476 size->length = y_dimension->values[0].integer; 477 } 478 else if (!x_dimension) 479 { 480 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, 481 _("Missing x-dimension in media-size."), 1); 482 return (0); 483 } 484 else if (!y_dimension) 485 { 486 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, 487 _("Missing y-dimension in media-size."), 1); 488 return (0); 489 } 490 } 491 else 492 { 493 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Missing media-size in media-col."), 494 1); 495 return (0); 496 } 497 498 /* media-*-margin */ 499 media_bottom_margin = ippFindAttribute(media_col->values[0].collection, 500 "media-bottom-margin", 501 IPP_TAG_INTEGER); 502 media_left_margin = ippFindAttribute(media_col->values[0].collection, 503 "media-left-margin", 504 IPP_TAG_INTEGER); 505 media_right_margin = ippFindAttribute(media_col->values[0].collection, 506 "media-right-margin", 507 IPP_TAG_INTEGER); 508 media_top_margin = ippFindAttribute(media_col->values[0].collection, 509 "media-top-margin", 510 IPP_TAG_INTEGER); 511 if (media_bottom_margin && media_left_margin && media_right_margin && 512 media_top_margin) 513 { 514 *margins_set = 1; 515 size->bottom = media_bottom_margin->values[0].integer; 516 size->left = media_left_margin->values[0].integer; 517 size->right = media_right_margin->values[0].integer; 518 size->top = media_top_margin->values[0].integer; 519 } 520 } 521 else 522 { 523 if ((media = ippFindAttribute(job, "media", IPP_TAG_NAME)) == NULL) 524 if ((media = ippFindAttribute(job, "media", IPP_TAG_KEYWORD)) == NULL) 525 if ((media = ippFindAttribute(job, "PageSize", IPP_TAG_NAME)) == NULL) 526 media = ippFindAttribute(job, "PageRegion", IPP_TAG_NAME); 527 528 if (media && media->values[0].string.text) 529 { 530 const char *name = media->values[0].string.text; 531 /* Name string */ 532 533 if ((pwg = pwgMediaForPWG(name)) == NULL) 534 { 535 /* 536 * Not a PWG name, try a legacy name... 537 */ 538 539 if ((pwg = pwgMediaForLegacy(name)) == NULL) 540 { 541 /* 542 * Not a legacy name, try a PPD name... 543 */ 544 545 const char *suffix; /* Suffix on media string */ 546 547 pwg = pwgMediaForPPD(name); 548 if (pwg && 549 (suffix = name + strlen(name) - 10 /* .FullBleed */) > name && 550 !_cups_strcasecmp(suffix, ".FullBleed")) 551 { 552 /* 553 * Indicate that margins are set with the default values of 0. 554 */ 555 556 *margins_set = 1; 557 } 558 } 559 } 560 561 if (pwg) 562 { 563 size->width = pwg->width; 564 size->length = pwg->length; 565 } 566 else 567 { 568 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unsupported media value."), 1); 569 return (0); 570 } 571 } 572 else 573 { 574 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Missing media or media-col."), 1); 575 return (0); 576 } 577 } 578 579 return (1); 580} 581 582/* For OS X 10.8 and earlier */ 583int _pwgInitSize(pwg_size_t *size, ipp_t *job, int *margins_set) 584{ return (pwgInitSize(size, job, margins_set)); } 585 586 587/* 588 * 'pwgMediaForLegacy()' - Find a PWG media size by ISO/IPP legacy name. 589 * 590 * The "name" argument specifies the legacy ISO media size name, for example 591 * "iso-a4" or "na-letter". 592 * 593 * @since CUPS 1.7/OS X 10.9@ 594 */ 595 596pwg_media_t * /* O - Matching size or NULL */ 597pwgMediaForLegacy(const char *legacy) /* I - Legacy size name */ 598{ 599 pwg_media_t key; /* Search key */ 600 _cups_globals_t *cg = _cupsGlobals(); /* Global data */ 601 602 603 /* 604 * Range check input... 605 */ 606 607 if (!legacy) 608 return (NULL); 609 610 /* 611 * Build the lookup table for PWG names as needed... 612 */ 613 614 if (!cg->leg_size_lut) 615 { 616 int i; /* Looping var */ 617 pwg_media_t *size; /* Current size */ 618 619 cg->leg_size_lut = cupsArrayNew((cups_array_func_t)pwg_compare_legacy, 620 NULL); 621 622 for (i = (int)(sizeof(cups_pwg_media) / sizeof(cups_pwg_media[0])), 623 size = (pwg_media_t *)cups_pwg_media; 624 i > 0; 625 i --, size ++) 626 if (size->legacy) 627 cupsArrayAdd(cg->leg_size_lut, size); 628 } 629 630 /* 631 * Lookup the name... 632 */ 633 634 key.legacy = legacy; 635 return ((pwg_media_t *)cupsArrayFind(cg->leg_size_lut, &key)); 636} 637 638/* For OS X 10.8 and earlier */ 639pwg_media_t *_pwgMediaForLegacy(const char *legacy) 640{ return (pwgMediaForLegacy(legacy)); } 641 642 643/* 644 * 'pwgMediaForPPD()' - Find a PWG media size by Adobe PPD name. 645 * 646 * The "ppd" argument specifies an Adobe page size name as defined in Table B.1 647 * of the Adobe PostScript Printer Description File Format Specification Version 648 * 4.3. 649 * 650 * If the name is non-standard, the returned PWG media size is stored in 651 * thread-local storage and is overwritten by each call to the function in the 652 * thread. Custom names can be of the form "Custom.WIDTHxLENGTH[units]" or 653 * "WIDTHxLENGTH[units]". 654 * 655 * @since CUPS 1.7/OS X 10.9@ 656 */ 657 658pwg_media_t * /* O - Matching size or NULL */ 659pwgMediaForPPD(const char *ppd) /* I - PPD size name */ 660{ 661 pwg_media_t key, /* Search key */ 662 *size; /* Matching size */ 663 _cups_globals_t *cg = _cupsGlobals(); /* Global data */ 664 665 666 /* 667 * Range check input... 668 */ 669 670 if (!ppd) 671 return (NULL); 672 673 /* 674 * Build the lookup table for PWG names as needed... 675 */ 676 677 if (!cg->ppd_size_lut) 678 { 679 int i; /* Looping var */ 680 681 cg->ppd_size_lut = cupsArrayNew((cups_array_func_t)pwg_compare_ppd, NULL); 682 683 for (i = (int)(sizeof(cups_pwg_media) / sizeof(cups_pwg_media[0])), 684 size = (pwg_media_t *)cups_pwg_media; 685 i > 0; 686 i --, size ++) 687 if (size->ppd) 688 cupsArrayAdd(cg->ppd_size_lut, size); 689 } 690 691 /* 692 * Lookup the name... 693 */ 694 695 key.ppd = ppd; 696 if ((size = (pwg_media_t *)cupsArrayFind(cg->ppd_size_lut, &key)) == NULL) 697 { 698 /* 699 * See if the name is of the form: 700 * 701 * [Custom.]WIDTHxLENGTH[.FullBleed] - Size in points/inches [borderless] 702 * [Custom.]WIDTHxLENGTHcm[.FullBleed] - Size in centimeters [borderless] 703 * [Custom.]WIDTHxLENGTHft[.FullBleed] - Size in feet [borderless] 704 * [Custom.]WIDTHxLENGTHin[.FullBleed] - Size in inches [borderless] 705 * [Custom.]WIDTHxLENGTHm[.FullBleed] - Size in meters [borderless] 706 * [Custom.]WIDTHxLENGTHmm[.FullBleed] - Size in millimeters [borderless] 707 * [Custom.]WIDTHxLENGTHpt[.FullBleed] - Size in points [borderless] 708 */ 709 710 int w, l, /* Width and length of page */ 711 numer, /* Unit scaling factor */ 712 denom; /* ... */ 713 char *ptr; /* Pointer into name */ 714 const char *units; /* Pointer to units */ 715 int custom; /* Custom page size? */ 716 717 718 if (!_cups_strncasecmp(ppd, "Custom.", 7)) 719 { 720 custom = 1; 721 numer = 2540; 722 denom = 72; 723 ptr = (char *)ppd + 7; 724 } 725 else 726 { 727 custom = 0; 728 numer = 2540; 729 denom = 1; 730 ptr = (char *)ppd; 731 } 732 733 /* 734 * Find any units in the size... 735 */ 736 737 units = strchr(ptr, '.'); 738 while (units && isdigit(units[1] & 255)) 739 units = strchr(units + 1, '.'); 740 741 if (units) 742 units -= 2; 743 else 744 units = ptr + strlen(ptr) - 2; 745 746 if (units > ptr) 747 { 748 if (isdigit(*units & 255) || *units == '.') 749 units ++; 750 751 if (!_cups_strncasecmp(units, "cm", 2)) 752 { 753 numer = 1000; 754 denom = 1; 755 } 756 else if (!_cups_strncasecmp(units, "ft", 2)) 757 { 758 numer = 2540 * 12; 759 denom = 1; 760 } 761 else if (!_cups_strncasecmp(units, "in", 2)) 762 { 763 numer = 2540; 764 denom = 1; 765 } 766 else if (!_cups_strncasecmp(units, "mm", 2)) 767 { 768 numer = 100; 769 denom = 1; 770 } 771 else if (*units == 'm' || *units == 'M') 772 { 773 numer = 100000; 774 denom = 1; 775 } 776 else if (!_cups_strncasecmp(units, "pt", 2)) 777 { 778 numer = 2540; 779 denom = 72; 780 } 781 } 782 783 w = pwg_scan_measurement(ptr, &ptr, numer, denom); 784 785 if (ptr && ptr > ppd && *ptr == 'x') 786 { 787 l = pwg_scan_measurement(ptr + 1, &ptr, numer, denom); 788 789 if (ptr) 790 { 791 /* 792 * Not a standard size; convert it to a PWG custom name of the form: 793 * 794 * [oe|om]_WIDTHxHEIGHTuu_WIDTHxHEIGHTuu 795 */ 796 797 size = &(cg->pwg_media); 798 size->width = w; 799 size->length = l; 800 size->pwg = cg->pwg_name; 801 802 pwgFormatSizeName(cg->pwg_name, sizeof(cg->pwg_name), 803 custom ? "custom" : NULL, custom ? ppd + 7 : NULL, 804 size->width, size->length, NULL); 805 } 806 } 807 } 808 809 return (size); 810} 811 812/* For OS X 10.8 and earlier */ 813pwg_media_t *_pwgMediaForPPD(const char *ppd) 814{ return (pwgMediaForPPD(ppd)); } 815 816 817/* 818 * 'pwgMediaForPWG()' - Find a PWG media size by 5101.1 self-describing name. 819 * 820 * The "pwg" argument specifies a self-describing media size name of the form 821 * "prefix_name_WIDTHxLENGTHunits" as defined in PWG 5101.1. 822 * 823 * If the name is non-standard, the returned PWG media size is stored in 824 * thread-local storage and is overwritten by each call to the function in the 825 * thread. 826 * 827 * @since CUPS 1.7/OS X 10.9@ 828 */ 829 830pwg_media_t * /* O - Matching size or NULL */ 831pwgMediaForPWG(const char *pwg) /* I - PWG size name */ 832{ 833 char *ptr; /* Pointer into name */ 834 pwg_media_t key, /* Search key */ 835 *size; /* Matching size */ 836 _cups_globals_t *cg = _cupsGlobals(); /* Global data */ 837 838 839 /* 840 * Range check input... 841 */ 842 843 if (!pwg) 844 return (NULL); 845 846 /* 847 * Build the lookup table for PWG names as needed... 848 */ 849 850 if (!cg->pwg_size_lut) 851 { 852 int i; /* Looping var */ 853 854 cg->pwg_size_lut = cupsArrayNew((cups_array_func_t)pwg_compare_pwg, NULL); 855 856 for (i = (int)(sizeof(cups_pwg_media) / sizeof(cups_pwg_media[0])), 857 size = (pwg_media_t *)cups_pwg_media; 858 i > 0; 859 i --, size ++) 860 cupsArrayAdd(cg->pwg_size_lut, size); 861 } 862 863 /* 864 * Lookup the name... 865 */ 866 867 key.pwg = pwg; 868 if ((size = (pwg_media_t *)cupsArrayFind(cg->pwg_size_lut, &key)) == NULL && 869 (ptr = (char *)strchr(pwg, '_')) != NULL && 870 (ptr = (char *)strchr(ptr + 1, '_')) != NULL) 871 { 872 /* 873 * Try decoding the self-describing name of the form: 874 * 875 * class_name_WWWxHHHin 876 * class_name_WWWxHHHmm 877 */ 878 879 int w, l; /* Width and length of page */ 880 int numer; /* Scale factor for units */ 881 const char *units = ptr + strlen(ptr) - 2; 882 /* Units from size */ 883 884 ptr ++; 885 886 if (units >= ptr && !strcmp(units, "in")) 887 numer = 2540; 888 else 889 numer = 100; 890 891 w = pwg_scan_measurement(ptr, &ptr, numer, 1); 892 893 if (ptr && *ptr == 'x') 894 { 895 l = pwg_scan_measurement(ptr + 1, &ptr, numer, 1); 896 897 if (ptr) 898 { 899 size = &(cg->pwg_media); 900 size->width = w; 901 size->length = l; 902 903 strlcpy(cg->pwg_name, pwg, sizeof(cg->pwg_name)); 904 size->pwg = cg->pwg_name; 905 } 906 } 907 } 908 909 return (size); 910} 911 912/* For OS X 10.8 and earlier */ 913pwg_media_t *_pwgMediaForPWG(const char *pwg) 914{ return (pwgMediaForPWG(pwg)); } 915 916 917/* 918 * 'pwgMediaForSize()' - Get the PWG media size for the given dimensions. 919 * 920 * The "width" and "length" are in hundredths of millimeters, equivalent to 921 * 1/100000th of a meter or 1/2540th of an inch. 922 * 923 * If the dimensions are non-standard, the returned PWG media size is stored in 924 * thread-local storage and is overwritten by each call to the function in the 925 * thread. 926 * 927 * @since CUPS 1.7/OS X 10.9@ 928 */ 929 930pwg_media_t * /* O - PWG media name */ 931pwgMediaForSize(int width, /* I - Width in hundredths of millimeters */ 932 int length) /* I - Length in hundredths of millimeters */ 933{ 934 int i; /* Looping var */ 935 pwg_media_t *media, /* Current media */ 936 *best_media = NULL; /* Best match */ 937 int dw, dl, /* Difference in width and length */ 938 best_dw = 999, /* Best difference in width and length */ 939 best_dl = 999; 940 _cups_globals_t *cg = _cupsGlobals(); /* Global data */ 941 942 943 /* 944 * Range check input... 945 */ 946 947 if (width <= 0 || length <= 0) 948 return (NULL); 949 950 /* 951 * Look for a standard size... 952 */ 953 954 for (i = (int)(sizeof(cups_pwg_media) / sizeof(cups_pwg_media[0])), 955 media = (pwg_media_t *)cups_pwg_media; 956 i > 0; 957 i --, media ++) 958 { 959 /* 960 * Adobe uses a size matching algorithm with an epsilon of 5 points, which 961 * is just about 176/2540ths... 962 */ 963 964 dw = abs(media->width - width); 965 dl = abs(media->length - length); 966 967 if (!dw && !dl) 968 return (media); 969 else if (dw < 176 && dl < 176) 970 { 971 if (dw <= best_dw && dl <= best_dl) 972 { 973 best_media = media; 974 best_dw = dw; 975 best_dl = dl; 976 } 977 } 978 } 979 980 if (best_media) 981 return (best_media); 982 983 /* 984 * Not a standard size; convert it to a PWG custom name of the form: 985 * 986 * custom_WIDTHxHEIGHTuu_WIDTHxHEIGHTuu 987 */ 988 989 pwgFormatSizeName(cg->pwg_name, sizeof(cg->pwg_name), "custom", NULL, width, 990 length, NULL); 991 992 cg->pwg_media.pwg = cg->pwg_name; 993 cg->pwg_media.width = width; 994 cg->pwg_media.length = length; 995 996 return (&(cg->pwg_media)); 997} 998 999/* For OS X 10.8 and earlier */ 1000pwg_media_t *_pwgMediaForSize(int width, int length) 1001{ return (pwgMediaForSize(width, length)); } 1002 1003 1004/* 1005 * '_pwgMediaTable()' - Return the internal media size table. 1006 */ 1007 1008const pwg_media_t * /* O - Pointer to first entry */ 1009_pwgMediaTable(size_t *num_media) /* O - Number of entries */ 1010{ 1011 *num_media = sizeof(cups_pwg_media) / sizeof(cups_pwg_media[0]); 1012 1013 return (cups_pwg_media); 1014} 1015 1016 1017/* 1018 * 'pwg_compare_legacy()' - Compare two sizes using the legacy names. 1019 */ 1020 1021static int /* O - Result of comparison */ 1022pwg_compare_legacy(pwg_media_t *a, /* I - First size */ 1023 pwg_media_t *b) /* I - Second size */ 1024{ 1025 return (strcmp(a->legacy, b->legacy)); 1026} 1027 1028 1029/* 1030 * 'pwg_compare_ppd()' - Compare two sizes using the PPD names. 1031 */ 1032 1033static int /* O - Result of comparison */ 1034pwg_compare_ppd(pwg_media_t *a, /* I - First size */ 1035 pwg_media_t *b) /* I - Second size */ 1036{ 1037 return (strcmp(a->ppd, b->ppd)); 1038} 1039 1040 1041/* 1042 * 'pwg_compare_pwg()' - Compare two sizes using the PWG names. 1043 */ 1044 1045static int /* O - Result of comparison */ 1046pwg_compare_pwg(pwg_media_t *a, /* I - First size */ 1047 pwg_media_t *b) /* I - Second size */ 1048{ 1049 return (strcmp(a->pwg, b->pwg)); 1050} 1051 1052 1053/* 1054 * 'pwg_format_inches()' - Convert and format PWG units as inches. 1055 */ 1056 1057static char * /* O - String */ 1058pwg_format_inches(char *buf, /* I - Buffer */ 1059 size_t bufsize, /* I - Size of buffer */ 1060 int val) /* I - Value in hundredths of millimeters */ 1061{ 1062 int thousandths, /* Thousandths of inches */ 1063 integer, /* Integer portion */ 1064 fraction; /* Fractional portion */ 1065 1066 1067 /* 1068 * Convert hundredths of millimeters to thousandths of inches and round to 1069 * the nearest thousandth. 1070 */ 1071 1072 thousandths = (val * 1000 + 1270) / 2540; 1073 integer = thousandths / 1000; 1074 fraction = thousandths % 1000; 1075 1076 /* 1077 * Format as a pair of integers (avoids locale stuff), avoiding trailing 1078 * zeros... 1079 */ 1080 1081 if (fraction == 0) 1082 snprintf(buf, bufsize, "%d", integer); 1083 else if (fraction % 10) 1084 snprintf(buf, bufsize, "%d.%03d", integer, fraction); 1085 else if (fraction % 100) 1086 snprintf(buf, bufsize, "%d.%02d", integer, fraction / 10); 1087 else 1088 snprintf(buf, bufsize, "%d.%01d", integer, fraction / 100); 1089 1090 return (buf); 1091} 1092 1093 1094/* 1095 * 'pwg_format_millimeters()' - Convert and format PWG units as millimeters. 1096 */ 1097 1098static char * /* O - String */ 1099pwg_format_millimeters(char *buf, /* I - Buffer */ 1100 size_t bufsize, /* I - Size of buffer */ 1101 int val) /* I - Value in hundredths of millimeters */ 1102{ 1103 int integer, /* Integer portion */ 1104 fraction; /* Fractional portion */ 1105 1106 1107 /* 1108 * Convert hundredths of millimeters to integer and fractional portions. 1109 */ 1110 1111 integer = val / 100; 1112 fraction = val % 100; 1113 1114 /* 1115 * Format as a pair of integers (avoids locale stuff), avoiding trailing 1116 * zeros... 1117 */ 1118 1119 if (fraction == 0) 1120 snprintf(buf, bufsize, "%d", integer); 1121 else if (fraction % 10) 1122 snprintf(buf, bufsize, "%d.%02d", integer, fraction); 1123 else 1124 snprintf(buf, bufsize, "%d.%01d", integer, fraction / 10); 1125 1126 return (buf); 1127} 1128 1129 1130/* 1131 * 'pwg_scan_measurement()' - Scan a measurement in inches or millimeters. 1132 * 1133 * The "factor" argument specifies the scale factor for the units to convert to 1134 * hundredths of millimeters. The returned value is NOT rounded but is an 1135 * exact conversion of the fraction value (no floating point is used). 1136 */ 1137 1138static int /* O - Hundredths of millimeters */ 1139pwg_scan_measurement( 1140 const char *buf, /* I - Number string */ 1141 char **bufptr, /* O - First byte after the number */ 1142 int numer, /* I - Numerator from units */ 1143 int denom) /* I - Denominator from units */ 1144{ 1145 int value = 0, /* Measurement value */ 1146 fractional = 0, /* Fractional value */ 1147 divisor = 1, /* Fractional divisor */ 1148 digits = 10 * numer * denom; /* Maximum fractional value to read */ 1149 1150 1151 /* 1152 * Scan integer portion... 1153 */ 1154 1155 while (*buf >= '0' && *buf <= '9') 1156 value = value * 10 + (*buf++) - '0'; 1157 1158 if (*buf == '.') 1159 { 1160 /* 1161 * Scan fractional portion... 1162 */ 1163 1164 buf ++; 1165 1166 while (divisor < digits && *buf >= '0' && *buf <= '9') 1167 { 1168 fractional = fractional * 10 + (*buf++) - '0'; 1169 divisor *= 10; 1170 } 1171 1172 /* 1173 * Skip trailing digits that won't contribute... 1174 */ 1175 1176 while (*buf >= '0' && *buf <= '9') 1177 buf ++; 1178 } 1179 1180 if (bufptr) 1181 *bufptr = (char *)buf; 1182 1183 return (value * numer / denom + fractional * numer / denom / divisor); 1184} 1185 1186 1187/* 1188 * End of "$Id: pwg-media.c 11433 2013-11-20 18:57:44Z msweet $". 1189 */ 1190