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[thirdparty/cups.git] / cups / pwg-media.c
1 /*
2 * "$Id$"
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
56 static int pwg_compare_legacy(pwg_media_t *a, pwg_media_t *b);
57 static int pwg_compare_pwg(pwg_media_t *a, pwg_media_t *b);
58 static int pwg_compare_ppd(pwg_media_t *a, pwg_media_t *b);
59 static char *pwg_format_inches(char *buf, size_t bufsize, int val);
60 static char *pwg_format_millimeters(char *buf, size_t bufsize, int val);
61 static int pwg_scan_measurement(const char *buf, char **bufptr, int numer,
62 int denom);
63
64
65 /*
66 * Local globals...
67 */
68
69 static 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
282 int /* O - 1 on success, 0 on failure */
283 pwgFormatSizeName(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... */
401 void _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
421 int /* O - 1 if size was initialized, 0 otherwise */
422 pwgInitSize(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 */
583 int _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
596 pwg_media_t * /* O - Matching size or NULL */
597 pwgMediaForLegacy(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 */
639 pwg_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
658 pwg_media_t * /* O - Matching size or NULL */
659 pwgMediaForPPD(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 */
813 pwg_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
830 pwg_media_t * /* O - Matching size or NULL */
831 pwgMediaForPWG(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 */
913 pwg_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
930 pwg_media_t * /* O - PWG media name */
931 pwgMediaForSize(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 */
1000 pwg_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
1008 const 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
1021 static int /* O - Result of comparison */
1022 pwg_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
1033 static int /* O - Result of comparison */
1034 pwg_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
1045 static int /* O - Result of comparison */
1046 pwg_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
1057 static char * /* O - String */
1058 pwg_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
1098 static char * /* O - String */
1099 pwg_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
1138 static int /* O - Hundredths of millimeters */
1139 pwg_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 "$Id$".
1189 */
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