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Add support for Japanese Kaku 1 envelope size (rdar://34774110)
[thirdparty/cups.git] / cups / pwg-media.c
1 /*
2 * PWG media name API implementation for CUPS.
3 *
4 * Copyright 2009-2017 by Apple Inc.
5 *
6 * These coded instructions, statements, and computer programs are the
7 * property of Apple Inc. and are protected by Federal copyright
8 * law. Distribution and use rights are outlined in the file "LICENSE.txt"
9 * which should have been included with this file. If this file is
10 * missing or damaged, see the license at "http://www.cups.org/".
11 *
12 * This file is subject to the Apple OS-Developed Software exception.
13 */
14
15 /*
16 * Include necessary headers...
17 */
18
19 #include "cups-private.h"
20 #include <math.h>
21
22
23 /*
24 * Local macros...
25 */
26
27 #define _PWG_MEDIA_IN(p,l,a,x,y) {p, l, a, (int)(x * 2540), (int)(y * 2540)}
28 #define _PWG_MEDIA_MM(p,l,a,x,y) {p, l, a, (int)(x * 100), (int)(y * 100)}
29
30
31 /*
32 * Local functions...
33 */
34
35 static int pwg_compare_legacy(pwg_media_t *a, pwg_media_t *b);
36 static int pwg_compare_pwg(pwg_media_t *a, pwg_media_t *b);
37 static int pwg_compare_ppd(pwg_media_t *a, pwg_media_t *b);
38 static char *pwg_format_inches(char *buf, size_t bufsize, int val);
39 static char *pwg_format_millimeters(char *buf, size_t bufsize, int val);
40 static int pwg_scan_measurement(const char *buf, char **bufptr, int numer, int denom);
41
42
43 /*
44 * Local globals...
45 */
46
47 static pwg_media_t const cups_pwg_media[] =
48 { /* Media size lookup table */
49 /* North American Standard Sheet Media Sizes */
50 _PWG_MEDIA_IN("na_index-3x5_3x5in", NULL, "3x5", 3, 5),
51 _PWG_MEDIA_IN("na_personal_3.625x6.5in", NULL, "EnvPersonal", 3.625, 6.5),
52 _PWG_MEDIA_IN("na_monarch_3.875x7.5in", "monarch-envelope", "EnvMonarch", 3.875, 7.5),
53 _PWG_MEDIA_IN("na_number-9_3.875x8.875in", "na-number-9-envelope", "Env9", 3.875, 8.875),
54 _PWG_MEDIA_IN("na_index-4x6_4x6in", NULL, "4x6", 4, 6),
55 _PWG_MEDIA_IN("na_number-10_4.125x9.5in", "na-number-10-envelope", "Env10", 4.125, 9.5),
56 _PWG_MEDIA_IN("na_a2_4.375x5.75in", NULL, "EnvA2", 4.375, 5.75),
57 _PWG_MEDIA_IN("na_number-11_4.5x10.375in", NULL, "Env11", 4.5, 10.375),
58 _PWG_MEDIA_IN("na_number-12_4.75x11in", NULL, "Env12", 4.75, 11),
59 _PWG_MEDIA_IN("na_5x7_5x7in", NULL, "5x7", 5, 7),
60 _PWG_MEDIA_IN("na_index-5x8_5x8in", NULL, "5x8", 5, 8),
61 _PWG_MEDIA_IN("na_number-14_5x11.5in", NULL, "Env14", 5, 11.5),
62 _PWG_MEDIA_IN("na_invoice_5.5x8.5in", "invoice", "Statement", 5.5, 8.5),
63 _PWG_MEDIA_IN("na_index-4x6-ext_6x8in", NULL, "6x8", 6, 8),
64 _PWG_MEDIA_IN("na_6x9_6x9in", "na-6x9-envelope", "6x9", 6, 9),
65 _PWG_MEDIA_IN("na_c5_6.5x9.5in", NULL, "6.5x9.5", 6.5, 9.5),
66 _PWG_MEDIA_IN("na_7x9_7x9in", "na-7x9-envelope", "7x9", 7, 9),
67 _PWG_MEDIA_IN("na_executive_7.25x10.5in", "executive", "Executive", 7.25, 10.5),
68 _PWG_MEDIA_IN("na_govt-letter_8x10in", "na-8x10", "8x10", 8, 10),
69 _PWG_MEDIA_IN("na_govt-legal_8x13in", NULL, "8x13", 8, 13),
70 _PWG_MEDIA_IN("na_quarto_8.5x10.83in", "quarto", "Quarto", 8.5, 10.83),
71 _PWG_MEDIA_IN("na_letter_8.5x11in", "na-letter", "Letter", 8.5, 11),
72 _PWG_MEDIA_IN("na_fanfold-eur_8.5x12in", NULL, "FanFoldGerman", 8.5, 12),
73 _PWG_MEDIA_IN("na_letter-plus_8.5x12.69in", NULL, "LetterPlus", 8.5, 12.69),
74 _PWG_MEDIA_IN("na_foolscap_8.5x13in", NULL, "FanFoldGermanLegal", 8.5, 13),
75 _PWG_MEDIA_IN("na_oficio_8.5x13.4in", NULL, "Oficio", 8.5, 13.4),
76 _PWG_MEDIA_IN("na_legal_8.5x14in", "na-legal", "Legal", 8.5, 14),
77 _PWG_MEDIA_IN("na_super-a_8.94x14in", NULL, "SuperA", 8.94, 14),
78 _PWG_MEDIA_IN("na_9x11_9x11in", "na-9x11-envelope", "9x11", 9, 11),
79 _PWG_MEDIA_IN("na_arch-a_9x12in", "arch-a", "ARCHA", 9, 12),
80 _PWG_MEDIA_IN("na_letter-extra_9.5x12in", NULL, "LetterExtra", 9.5, 12),
81 _PWG_MEDIA_IN("na_legal-extra_9.5x15in", NULL, "LegalExtra", 9.5, 15),
82 _PWG_MEDIA_IN("na_10x11_10x11in", NULL, "10x11", 10, 11),
83 _PWG_MEDIA_IN("na_10x13_10x13in", "na-10x13-envelope", "10x13", 10, 13),
84 _PWG_MEDIA_IN("na_10x14_10x14in", "na-10x14-envelope", "10x14", 10, 14),
85 _PWG_MEDIA_IN("na_10x15_10x15in", "na-10x15-envelope", "10x15", 10, 15),
86 _PWG_MEDIA_IN("na_11x12_11x12in", NULL, "11x12", 11, 12),
87 _PWG_MEDIA_IN("na_edp_11x14in", NULL, "11x14", 11, 14),
88 _PWG_MEDIA_IN("na_fanfold-us_11x14.875in", NULL, "11x14.875", 11, 14.875),
89 _PWG_MEDIA_IN("na_11x15_11x15in", NULL, "11x15", 11, 15),
90 _PWG_MEDIA_IN("na_ledger_11x17in", "tabloid", "Tabloid", 11, 17),
91 _PWG_MEDIA_IN("na_eur-edp_12x14in", NULL, NULL, 12, 14),
92 _PWG_MEDIA_IN("na_arch-b_12x18in", "arch-b", "ARCHB", 12, 18),
93 _PWG_MEDIA_IN("na_12x19_12x19in", NULL, "12x19", 12, 19),
94 _PWG_MEDIA_IN("na_b-plus_12x19.17in", NULL, "SuperB", 12, 19.17),
95 _PWG_MEDIA_IN("na_super-b_13x19in", "super-b", "13x19", 13, 19),
96 _PWG_MEDIA_IN("na_c_17x22in", "c", "AnsiC", 17, 22),
97 _PWG_MEDIA_IN("na_arch-c_18x24in", "arch-c", "ARCHC", 18, 24),
98 _PWG_MEDIA_IN("na_d_22x34in", "d", "AnsiD", 22, 34),
99 _PWG_MEDIA_IN("na_arch-d_24x36in", "arch-d", "ARCHD", 24, 36),
100 _PWG_MEDIA_IN("asme_f_28x40in", "f", "28x40", 28, 40),
101 _PWG_MEDIA_IN("na_wide-format_30x42in", NULL, "30x42", 30, 42),
102 _PWG_MEDIA_IN("na_e_34x44in", "e", "AnsiE", 34, 44),
103 _PWG_MEDIA_IN("na_arch-e_36x48in", "arch-e", "ARCHE", 36, 48),
104 _PWG_MEDIA_IN("na_f_44x68in", NULL, "AnsiF", 44, 68),
105
106 /* ISO Standard Sheet Media Sizes */
107 _PWG_MEDIA_MM("iso_a10_26x37mm", "iso-a10", "A10", 26, 37),
108 _PWG_MEDIA_MM("iso_a9_37x52mm", "iso-a9", "A9", 37, 52),
109 _PWG_MEDIA_MM("iso_a8_52x74mm", "iso-a8", "A8", 52, 74),
110 _PWG_MEDIA_MM("iso_a7_74x105mm", "iso-a7", "A7", 74, 105),
111 _PWG_MEDIA_MM("iso_a6_105x148mm", "iso-a6", "A6", 105, 148),
112 _PWG_MEDIA_MM("iso_a5_148x210mm", "iso-a5", "A5", 148, 210),
113 _PWG_MEDIA_MM("iso_a5-extra_174x235mm", NULL, "A5Extra", 174, 235),
114 _PWG_MEDIA_MM("iso_a4_210x297mm", "iso-a4", "A4", 210, 297),
115 _PWG_MEDIA_MM("iso_a4-tab_225x297mm", NULL, "A4Tab", 225, 297),
116 _PWG_MEDIA_MM("iso_a4-extra_235.5x322.3mm", NULL, "A4Extra", 235.5, 322.3),
117 _PWG_MEDIA_MM("iso_a3_297x420mm", "iso-a3", "A3", 297, 420),
118 _PWG_MEDIA_MM("iso_a4x3_297x630mm", "iso-a4x3", "A4x3", 297, 630),
119 _PWG_MEDIA_MM("iso_a4x4_297x841mm", "iso-a4x4", "A4x4", 297, 841),
120 _PWG_MEDIA_MM("iso_a4x5_297x1051mm", "iso-a4x5", "A4x5", 297, 1051),
121 _PWG_MEDIA_MM("iso_a4x6_297x1261mm", "iso-a4x6", "A4x6", 297, 1261),
122 _PWG_MEDIA_MM("iso_a4x7_297x1471mm", "iso-a4x7", "A4x7", 297, 1471),
123 _PWG_MEDIA_MM("iso_a4x8_297x1682mm", "iso-a4x8", "A4x8", 297, 1682),
124 _PWG_MEDIA_MM("iso_a4x9_297x1892mm", "iso-a4x9", "A4x9", 297, 1892),
125 _PWG_MEDIA_MM("iso_a3-extra_322x445mm", "iso-a3-extra", "A3Extra", 322, 445),
126 _PWG_MEDIA_MM("iso_a2_420x594mm", "iso-a2", "A2", 420, 594),
127 _PWG_MEDIA_MM("iso_a3x3_420x891mm", "iso-a3x3", "A3x3", 420, 891),
128 _PWG_MEDIA_MM("iso_a3x4_420x1189mm", "iso-a3x4", "A3x4", 420, 1189),
129 _PWG_MEDIA_MM("iso_a3x5_420x1486mm", "iso-a3x5", "A3x6", 420, 1486),
130 _PWG_MEDIA_MM("iso_a3x6_420x1783mm", "iso-a3x6", "A3x6", 420, 1783),
131 _PWG_MEDIA_MM("iso_a3x7_420x2080mm", "iso-a3x7", "A3x7", 420, 2080),
132 _PWG_MEDIA_MM("iso_a1_594x841mm", "iso-a1", "A1", 594, 841),
133 _PWG_MEDIA_MM("iso_a2x3_594x1261mm", "iso-a2x3", "A2x3", 594, 1261),
134 _PWG_MEDIA_MM("iso_a2x4_594x1682mm", "iso-a2x4", "A2x4", 594, 1682),
135 _PWG_MEDIA_MM("iso_a2x5_594x2102mm", "iso-a2x5", "A2x5", 594, 2102),
136 _PWG_MEDIA_MM("iso_a0_841x1189mm", "iso-a0", "A0", 841, 1189),
137 _PWG_MEDIA_MM("iso_a1x3_841x1783mm", "iso-a1x3", "A1x3", 841, 1783),
138 _PWG_MEDIA_MM("iso_a1x4_841x2378mm", "iso-a1x4", "A1x4", 841, 2378),
139 _PWG_MEDIA_MM("iso_2a0_1189x1682mm", NULL, "1189x1682mm", 1189, 1682),
140 _PWG_MEDIA_MM("iso_a0x3_1189x2523mm", NULL, "A0x3", 1189, 2523),
141 _PWG_MEDIA_MM("iso_b10_31x44mm", "iso-b10", "ISOB10", 31, 44),
142 _PWG_MEDIA_MM("iso_b9_44x62mm", "iso-b9", "ISOB9", 44, 62),
143 _PWG_MEDIA_MM("iso_b8_62x88mm", "iso-b8", "ISOB8", 62, 88),
144 _PWG_MEDIA_MM("iso_b7_88x125mm", "iso-b7", "ISOB7", 88, 125),
145 _PWG_MEDIA_MM("iso_b6_125x176mm", "iso-b6", "ISOB6", 125, 176),
146 _PWG_MEDIA_MM("iso_b6c4_125x324mm", NULL, "125x324mm", 125, 324),
147 _PWG_MEDIA_MM("iso_b5_176x250mm", "iso-b5", "ISOB5", 176, 250),
148 _PWG_MEDIA_MM("iso_b5-extra_201x276mm", NULL, "ISOB5Extra", 201, 276),
149 _PWG_MEDIA_MM("iso_b4_250x353mm", "iso-b4", "ISOB4", 250, 353),
150 _PWG_MEDIA_MM("iso_b3_353x500mm", "iso-b3", "ISOB3", 353, 500),
151 _PWG_MEDIA_MM("iso_b2_500x707mm", "iso-b2", "ISOB2", 500, 707),
152 _PWG_MEDIA_MM("iso_b1_707x1000mm", "iso-b1", "ISOB1", 707, 1000),
153 _PWG_MEDIA_MM("iso_b0_1000x1414mm", "iso-b0", "ISOB0", 1000, 1414),
154 _PWG_MEDIA_MM("iso_c10_28x40mm", "iso-c10", "EnvC10", 28, 40),
155 _PWG_MEDIA_MM("iso_c9_40x57mm", "iso-c9", "EnvC9", 40, 57),
156 _PWG_MEDIA_MM("iso_c8_57x81mm", "iso-c8", "EnvC8", 57, 81),
157 _PWG_MEDIA_MM("iso_c7_81x114mm", "iso-c7", "EnvC7", 81, 114),
158 _PWG_MEDIA_MM("iso_c7c6_81x162mm", NULL, "EnvC76", 81, 162),
159 _PWG_MEDIA_MM("iso_c6_114x162mm", "iso-c6", "EnvC6", 114, 162),
160 _PWG_MEDIA_MM("iso_c6c5_114x229mm", NULL, "EnvC65", 114, 229),
161 _PWG_MEDIA_MM("iso_c5_162x229mm", "iso-c5", "EnvC5", 162, 229),
162 _PWG_MEDIA_MM("iso_c4_229x324mm", "iso-c4", "EnvC4", 229, 324),
163 _PWG_MEDIA_MM("iso_c3_324x458mm", "iso-c3", "EnvC3", 324, 458),
164 _PWG_MEDIA_MM("iso_c2_458x648mm", "iso-c2", "EnvC2", 458, 648),
165 _PWG_MEDIA_MM("iso_c1_648x917mm", "iso-c1", "EnvC1", 648, 917),
166 _PWG_MEDIA_MM("iso_c0_917x1297mm", "iso-c0", "EnvC0", 917, 1297),
167 _PWG_MEDIA_MM("iso_dl_110x220mm", "iso-designated", "EnvDL", 110, 220),
168 _PWG_MEDIA_MM("iso_ra4_215x305mm", "iso-ra4", "RA4", 215, 305),
169 _PWG_MEDIA_MM("iso_sra4_225x320mm", "iso-sra4", "SRA4", 225, 320),
170 _PWG_MEDIA_MM("iso_ra3_305x430mm", "iso-ra3", "RA3", 305, 430),
171 _PWG_MEDIA_MM("iso_sra3_320x450mm", "iso-sra3", "SRA3", 320, 450),
172 _PWG_MEDIA_MM("iso_ra2_430x610mm", "iso-ra2", "RA2", 430, 610),
173 _PWG_MEDIA_MM("iso_sra2_450x640mm", "iso-sra2", "SRA2", 450, 640),
174 _PWG_MEDIA_MM("iso_ra1_610x860mm", "iso-ra1", "RA1", 610, 860),
175 _PWG_MEDIA_MM("iso_sra1_640x900mm", "iso-sra1", "SRA1", 640, 900),
176 _PWG_MEDIA_MM("iso_ra0_860x1220mm", "iso-ra0", "RA0", 860, 1220),
177 _PWG_MEDIA_MM("iso_sra0_900x1280mm", "iso-sra0", "SRA0", 900, 1280),
178
179 /* Japanese Standard Sheet Media Sizes */
180 _PWG_MEDIA_MM("jis_b10_32x45mm", "jis-b10", "B10", 32, 45),
181 _PWG_MEDIA_MM("jis_b9_45x64mm", "jis-b9", "B9", 45, 64),
182 _PWG_MEDIA_MM("jis_b8_64x91mm", "jis-b8", "B8", 64, 91),
183 _PWG_MEDIA_MM("jis_b7_91x128mm", "jis-b7", "B7", 91, 128),
184 _PWG_MEDIA_MM("jis_b6_128x182mm", "jis-b6", "B6", 128, 182),
185 _PWG_MEDIA_MM("jis_b5_182x257mm", "jis-b5", "B5", 182, 257),
186 _PWG_MEDIA_MM("jis_b4_257x364mm", "jis-b4", "B4", 257, 364),
187 _PWG_MEDIA_MM("jis_b3_364x515mm", "jis-b3", "B3", 364, 515),
188 _PWG_MEDIA_MM("jis_b2_515x728mm", "jis-b2", "B2", 515, 728),
189 _PWG_MEDIA_MM("jis_b1_728x1030mm", "jis-b1", "B1", 728, 1030),
190 _PWG_MEDIA_MM("jis_b0_1030x1456mm", "jis-b0", "B0", 1030, 1456),
191 _PWG_MEDIA_MM("jis_exec_216x330mm", NULL, "216x330mm", 216, 330),
192 _PWG_MEDIA_MM("jpn_kaku1_270x382mm", NULL, "EnvKaku1", 270, 382),
193 _PWG_MEDIA_MM("jpn_kaku2_240x332mm", NULL, "EnvKaku2", 240, 332),
194 _PWG_MEDIA_MM("jpn_kaku3_216x277mm", NULL, "EnvKaku3", 216, 277),
195 _PWG_MEDIA_MM("jpn_kaku4_197x267mm", NULL, "EnvKaku4", 197, 267),
196 _PWG_MEDIA_MM("jpn_kaku5_190x240mm", NULL, "EnvKaku5", 190, 240),
197 _PWG_MEDIA_MM("jpn_kaku7_142x205mm", NULL, "EnvKaku7", 142, 205),
198 _PWG_MEDIA_MM("jpn_kaku8_119x197mm", NULL, "EnvKaku8", 119, 197),
199 _PWG_MEDIA_MM("jpn_chou4_90x205mm", NULL, "EnvChou4", 90, 205),
200 _PWG_MEDIA_MM("jpn_hagaki_100x148mm", NULL, "Postcard", 100, 148),
201 _PWG_MEDIA_MM("jpn_you4_105x235mm", NULL, "EnvYou4", 105, 235),
202 _PWG_MEDIA_MM("jpn_you6_98x190mm", NULL, "EnvYou6", 98, 190),
203 _PWG_MEDIA_MM("jpn_chou2_111.1x146mm", NULL, NULL, 111.1, 146),
204 _PWG_MEDIA_MM("jpn_chou3_120x235mm", NULL, "EnvChou3", 120, 235),
205 _PWG_MEDIA_MM("jpn_chou40_90x225mm", NULL, "EnvChou40", 90, 225),
206 _PWG_MEDIA_MM("jpn_oufuku_148x200mm", NULL, "DoublePostcardRotated", 148, 200),
207 _PWG_MEDIA_MM("jpn_kahu_240x322.1mm", NULL, "240x322mm", 240, 322.1),
208
209 /* Chinese Standard Sheet Media Sizes */
210 _PWG_MEDIA_MM("prc_32k_97x151mm", NULL, "PRC32K", 97, 151),
211 _PWG_MEDIA_MM("prc_1_102x165mm", NULL, "EnvPRC1", 102, 165),
212 _PWG_MEDIA_MM("prc_2_102x176mm", NULL, "EnvPRC2", 102, 176),
213 _PWG_MEDIA_MM("prc_4_110x208mm", NULL, "EnvPRC4", 110, 208),
214 _PWG_MEDIA_MM("prc_8_120x309mm", NULL, "EnvPRC8", 120, 309),
215 _PWG_MEDIA_MM("prc_6_120x320mm", NULL, NULL, 120, 320),
216 _PWG_MEDIA_MM("prc_16k_146x215mm", NULL, "PRC16K", 146, 215),
217 _PWG_MEDIA_MM("prc_7_160x230mm", NULL, "EnvPRC7", 160, 230),
218 _PWG_MEDIA_MM("om_juuro-ku-kai_198x275mm", NULL, "198x275mm", 198, 275),
219 _PWG_MEDIA_MM("om_pa-kai_267x389mm", NULL, "267x389mm", 267, 389),
220 _PWG_MEDIA_MM("om_dai-pa-kai_275x395mm", NULL, "275x395mm", 275, 395),
221
222 /* Chinese Standard Sheet Media Inch Sizes */
223 _PWG_MEDIA_IN("roc_16k_7.75x10.75in", NULL, "roc16k", 7.75, 10.75),
224 _PWG_MEDIA_IN("roc_8k_10.75x15.5in", NULL, "roc8k", 10.75, 15.5),
225
226 /* Other English Standard Sheet Media Sizes */
227 _PWG_MEDIA_IN("oe_photo-l_3.5x5in", NULL, "3.5x5", 3.5, 5),
228
229 /* Other Metric Standard Sheet Media Sizes */
230 _PWG_MEDIA_MM("om_small-photo_100x150mm", NULL, "100x150mm", 100, 150),
231 _PWG_MEDIA_MM("om_italian_110x230mm", NULL, "EnvItalian", 110, 230),
232 _PWG_MEDIA_MM("om_large-photo_200x300", NULL, "200x300mm", 200, 300),
233 _PWG_MEDIA_MM("om_folio_210x330mm", "folio", "Folio", 210, 330),
234 _PWG_MEDIA_MM("om_folio-sp_215x315mm", NULL, "FolioSP", 215, 315),
235 _PWG_MEDIA_MM("om_invite_220x220mm", NULL, "EnvInvite", 220, 220),
236 _PWG_MEDIA_MM("om_small-photo_100x200mm", NULL, "100x200mm", 100, 200),
237
238 /* Disc Sizes */
239 _PWG_MEDIA_MM("disc_standard_40x118mm", NULL, "Disc", 118, 118)
240 };
241
242
243 /*
244 * 'pwgFormatSizeName()' - Generate a PWG self-describing media size name.
245 *
246 * This function generates a PWG self-describing media size name of the form
247 * "prefix_name_WIDTHxLENGTHunits". The prefix is typically "custom" or "roll"
248 * for user-supplied sizes but can also be "disc", "iso", "jis", "jpn", "na",
249 * "oe", "om", "prc", or "roc". A value of @code NULL@ automatically chooses
250 * "oe" or "om" depending on the units.
251 *
252 * The size name may only contain lowercase letters, numbers, "-", and ".". If
253 * @code NULL@ is passed, the size name will contain the formatted dimensions.
254 *
255 * The width and length are specified in hundredths of millimeters, equivalent
256 * to 1/100000th of a meter or 1/2540th of an inch. The width, length, and
257 * units used for the generated size name are calculated automatically if the
258 * units string is @code NULL@, otherwise inches ("in") or millimeters ("mm")
259 * are used.
260 *
261 * @since CUPS 1.7/macOS 10.9@
262 */
263
264 int /* O - 1 on success, 0 on failure */
265 pwgFormatSizeName(char *keyword, /* I - Keyword buffer */
266 size_t keysize, /* I - Size of keyword buffer */
267 const char *prefix, /* I - Prefix for PWG size or @code NULL@ for automatic */
268 const char *name, /* I - Size name or @code NULL@ */
269 int width, /* I - Width of page in 2540ths */
270 int length, /* I - Length of page in 2540ths */
271 const char *units) /* I - Units - "in", "mm", or @code NULL@ for automatic */
272 {
273 char usize[12 + 1 + 12 + 3], /* Unit size: NNNNNNNNNNNNxNNNNNNNNNNNNuu */
274 *uptr; /* Pointer into unit size */
275 char *(*format)(char *, size_t, int);
276 /* Formatting function */
277
278
279 /*
280 * Range check input...
281 */
282
283 DEBUG_printf(("pwgFormatSize(keyword=%p, keysize=" CUPS_LLFMT ", prefix=\"%s\", name=\"%s\", width=%d, length=%d, units=\"%s\")", (void *)keyword, CUPS_LLCAST keysize, prefix, name, width, length, units));
284
285 if (keyword)
286 *keyword = '\0';
287
288 if (!keyword || keysize < 32 || width < 0 || length < 0 ||
289 (units && strcmp(units, "in") && strcmp(units, "mm")))
290 {
291 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Invalid media name arguments."),
292 1);
293 return (0);
294 }
295
296 if (name)
297 {
298 /*
299 * Validate name...
300 */
301
302 const char *nameptr; /* Pointer into name */
303
304 for (nameptr = name; *nameptr; nameptr ++)
305 if (!(*nameptr >= 'a' && *nameptr <= 'z') &&
306 !(*nameptr >= '0' && *nameptr <= '9') &&
307 *nameptr != '.' && *nameptr != '-')
308 {
309 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
310 _("Invalid media name arguments."), 1);
311 return (0);
312 }
313 }
314 else
315 name = usize;
316
317 if (prefix && !strcmp(prefix, "disc"))
318 width = 4000; /* Disc sizes use hardcoded 40mm inner diameter */
319
320 if (!units)
321 {
322 if ((width % 635) == 0 && (length % 635) == 0)
323 {
324 /*
325 * Use inches since the size is a multiple of 1/4 inch.
326 */
327
328 units = "in";
329 }
330 else
331 {
332 /*
333 * Use millimeters since the size is not a multiple of 1/4 inch.
334 */
335
336 units = "mm";
337 }
338 }
339
340 if (!strcmp(units, "in"))
341 {
342 format = pwg_format_inches;
343
344 if (!prefix)
345 prefix = "oe";
346 }
347 else
348 {
349 format = pwg_format_millimeters;
350
351 if (!prefix)
352 prefix = "om";
353 }
354
355 /*
356 * Format the size string...
357 */
358
359 uptr = usize;
360 (*format)(uptr, sizeof(usize) - (size_t)(uptr - usize), width);
361 uptr += strlen(uptr);
362 *uptr++ = 'x';
363 (*format)(uptr, sizeof(usize) - (size_t)(uptr - usize), length);
364 uptr += strlen(uptr);
365
366 /*
367 * Safe because usize can hold up to 12 + 1 + 12 + 4 bytes.
368 */
369
370 memcpy(uptr, units, 3);
371
372 /*
373 * Format the name...
374 */
375
376 snprintf(keyword, keysize, "%s_%s_%s", prefix, name, usize);
377
378 return (1);
379 }
380
381
382 /*
383 * 'pwgInitSize()' - Initialize a pwg_size_t structure using IPP Job Template
384 * attributes.
385 *
386 * This function initializes a pwg_size_t structure from an IPP "media" or
387 * "media-col" attribute in the specified IPP message. 0 is returned if neither
388 * attribute is found in the message or the values are not valid.
389 *
390 * The "margins_set" variable is initialized to 1 if any "media-xxx-margin"
391 * member attribute was specified in the "media-col" Job Template attribute,
392 * otherwise it is initialized to 0.
393 *
394 * @since CUPS 1.7/macOS 10.9@
395 */
396
397 int /* O - 1 if size was initialized, 0 otherwise */
398 pwgInitSize(pwg_size_t *size, /* I - Size to initialize */
399 ipp_t *job, /* I - Job template attributes */
400 int *margins_set) /* O - 1 if margins were set, 0 otherwise */
401 {
402 ipp_attribute_t *media, /* media attribute */
403 *media_bottom_margin, /* media-bottom-margin member attribute */
404 *media_col, /* media-col attribute */
405 *media_left_margin, /* media-left-margin member attribute */
406 *media_right_margin, /* media-right-margin member attribute */
407 *media_size, /* media-size member attribute */
408 *media_top_margin, /* media-top-margin member attribute */
409 *x_dimension, /* x-dimension member attribute */
410 *y_dimension; /* y-dimension member attribute */
411 pwg_media_t *pwg; /* PWG media value */
412
413
414 /*
415 * Range check input...
416 */
417
418 if (!size || !job || !margins_set)
419 return (0);
420
421 /*
422 * Look for media-col and then media...
423 */
424
425 memset(size, 0, sizeof(pwg_size_t));
426 *margins_set = 0;
427
428 if ((media_col = ippFindAttribute(job, "media-col",
429 IPP_TAG_BEGIN_COLLECTION)) != NULL)
430 {
431 /*
432 * Got media-col, look for media-size member attribute...
433 */
434
435 if ((media_size = ippFindAttribute(media_col->values[0].collection,
436 "media-size",
437 IPP_TAG_BEGIN_COLLECTION)) != NULL)
438 {
439 /*
440 * Got media-size, look for x-dimension and y-dimension member
441 * attributes...
442 */
443
444 x_dimension = ippFindAttribute(media_size->values[0].collection,
445 "x-dimension", IPP_TAG_INTEGER);
446 y_dimension = ippFindAttribute(media_size->values[0].collection,
447 "y-dimension", IPP_TAG_INTEGER);
448
449 if (x_dimension && y_dimension)
450 {
451 size->width = x_dimension->values[0].integer;
452 size->length = y_dimension->values[0].integer;
453 }
454 else if (!x_dimension)
455 {
456 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
457 _("Missing x-dimension in media-size."), 1);
458 return (0);
459 }
460 else if (!y_dimension)
461 {
462 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
463 _("Missing y-dimension in media-size."), 1);
464 return (0);
465 }
466 }
467 else
468 {
469 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Missing media-size in media-col."),
470 1);
471 return (0);
472 }
473
474 /* media-*-margin */
475 media_bottom_margin = ippFindAttribute(media_col->values[0].collection,
476 "media-bottom-margin",
477 IPP_TAG_INTEGER);
478 media_left_margin = ippFindAttribute(media_col->values[0].collection,
479 "media-left-margin",
480 IPP_TAG_INTEGER);
481 media_right_margin = ippFindAttribute(media_col->values[0].collection,
482 "media-right-margin",
483 IPP_TAG_INTEGER);
484 media_top_margin = ippFindAttribute(media_col->values[0].collection,
485 "media-top-margin",
486 IPP_TAG_INTEGER);
487 if (media_bottom_margin && media_left_margin && media_right_margin &&
488 media_top_margin)
489 {
490 *margins_set = 1;
491 size->bottom = media_bottom_margin->values[0].integer;
492 size->left = media_left_margin->values[0].integer;
493 size->right = media_right_margin->values[0].integer;
494 size->top = media_top_margin->values[0].integer;
495 }
496 }
497 else
498 {
499 if ((media = ippFindAttribute(job, "media", IPP_TAG_NAME)) == NULL)
500 if ((media = ippFindAttribute(job, "media", IPP_TAG_KEYWORD)) == NULL)
501 if ((media = ippFindAttribute(job, "PageSize", IPP_TAG_NAME)) == NULL)
502 media = ippFindAttribute(job, "PageRegion", IPP_TAG_NAME);
503
504 if (media && media->values[0].string.text)
505 {
506 const char *name = media->values[0].string.text;
507 /* Name string */
508
509 if ((pwg = pwgMediaForPWG(name)) == NULL)
510 {
511 /*
512 * Not a PWG name, try a legacy name...
513 */
514
515 if ((pwg = pwgMediaForLegacy(name)) == NULL)
516 {
517 /*
518 * Not a legacy name, try a PPD name...
519 */
520
521 const char *suffix; /* Suffix on media string */
522
523 pwg = pwgMediaForPPD(name);
524 if (pwg &&
525 (suffix = name + strlen(name) - 10 /* .FullBleed */) > name &&
526 !_cups_strcasecmp(suffix, ".FullBleed"))
527 {
528 /*
529 * Indicate that margins are set with the default values of 0.
530 */
531
532 *margins_set = 1;
533 }
534 }
535 }
536
537 if (pwg)
538 {
539 size->width = pwg->width;
540 size->length = pwg->length;
541 }
542 else
543 {
544 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unsupported media value."), 1);
545 return (0);
546 }
547 }
548 else
549 {
550 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Missing media or media-col."), 1);
551 return (0);
552 }
553 }
554
555 return (1);
556 }
557
558
559 /*
560 * 'pwgMediaForLegacy()' - Find a PWG media size by ISO/IPP legacy name.
561 *
562 * The "name" argument specifies the legacy ISO media size name, for example
563 * "iso-a4" or "na-letter".
564 *
565 * @since CUPS 1.7/macOS 10.9@
566 */
567
568 pwg_media_t * /* O - Matching size or NULL */
569 pwgMediaForLegacy(const char *legacy) /* I - Legacy size name */
570 {
571 pwg_media_t key; /* Search key */
572 _cups_globals_t *cg = _cupsGlobals(); /* Global data */
573
574
575 /*
576 * Range check input...
577 */
578
579 if (!legacy)
580 return (NULL);
581
582 /*
583 * Build the lookup table for PWG names as needed...
584 */
585
586 if (!cg->leg_size_lut)
587 {
588 int i; /* Looping var */
589 pwg_media_t *size; /* Current size */
590
591 cg->leg_size_lut = cupsArrayNew((cups_array_func_t)pwg_compare_legacy,
592 NULL);
593
594 for (i = (int)(sizeof(cups_pwg_media) / sizeof(cups_pwg_media[0])),
595 size = (pwg_media_t *)cups_pwg_media;
596 i > 0;
597 i --, size ++)
598 if (size->legacy)
599 cupsArrayAdd(cg->leg_size_lut, size);
600 }
601
602 /*
603 * Lookup the name...
604 */
605
606 key.legacy = legacy;
607 return ((pwg_media_t *)cupsArrayFind(cg->leg_size_lut, &key));
608 }
609
610
611 /*
612 * 'pwgMediaForPPD()' - Find a PWG media size by Adobe PPD name.
613 *
614 * The "ppd" argument specifies an Adobe page size name as defined in Table B.1
615 * of the Adobe PostScript Printer Description File Format Specification Version
616 * 4.3.
617 *
618 * If the name is non-standard, the returned PWG media size is stored in
619 * thread-local storage and is overwritten by each call to the function in the
620 * thread. Custom names can be of the form "Custom.WIDTHxLENGTH[units]" or
621 * "WIDTHxLENGTH[units]".
622 *
623 * @since CUPS 1.7/macOS 10.9@
624 */
625
626 pwg_media_t * /* O - Matching size or NULL */
627 pwgMediaForPPD(const char *ppd) /* I - PPD size name */
628 {
629 pwg_media_t key, /* Search key */
630 *size; /* Matching size */
631 _cups_globals_t *cg = _cupsGlobals(); /* Global data */
632
633
634 /*
635 * Range check input...
636 */
637
638 if (!ppd)
639 return (NULL);
640
641 /*
642 * Build the lookup table for PWG names as needed...
643 */
644
645 if (!cg->ppd_size_lut)
646 {
647 int i; /* Looping var */
648
649 cg->ppd_size_lut = cupsArrayNew((cups_array_func_t)pwg_compare_ppd, NULL);
650
651 for (i = (int)(sizeof(cups_pwg_media) / sizeof(cups_pwg_media[0])),
652 size = (pwg_media_t *)cups_pwg_media;
653 i > 0;
654 i --, size ++)
655 if (size->ppd)
656 cupsArrayAdd(cg->ppd_size_lut, size);
657 }
658
659 /*
660 * Lookup the name...
661 */
662
663 key.ppd = ppd;
664 if ((size = (pwg_media_t *)cupsArrayFind(cg->ppd_size_lut, &key)) == NULL)
665 {
666 /*
667 * See if the name is of the form:
668 *
669 * [Custom.]WIDTHxLENGTH[.FullBleed] - Size in points/inches [borderless]
670 * [Custom.]WIDTHxLENGTHcm[.FullBleed] - Size in centimeters [borderless]
671 * [Custom.]WIDTHxLENGTHft[.FullBleed] - Size in feet [borderless]
672 * [Custom.]WIDTHxLENGTHin[.FullBleed] - Size in inches [borderless]
673 * [Custom.]WIDTHxLENGTHm[.FullBleed] - Size in meters [borderless]
674 * [Custom.]WIDTHxLENGTHmm[.FullBleed] - Size in millimeters [borderless]
675 * [Custom.]WIDTHxLENGTHpt[.FullBleed] - Size in points [borderless]
676 */
677
678 int w, l, /* Width and length of page */
679 numer, /* Unit scaling factor */
680 denom; /* ... */
681 char *ptr; /* Pointer into name */
682 const char *units; /* Pointer to units */
683 int custom; /* Custom page size? */
684
685
686 if (!_cups_strncasecmp(ppd, "Custom.", 7))
687 {
688 custom = 1;
689 numer = 2540;
690 denom = 72;
691 ptr = (char *)ppd + 7;
692 }
693 else
694 {
695 custom = 0;
696 numer = 2540;
697 denom = 1;
698 ptr = (char *)ppd;
699 }
700
701 /*
702 * Find any units in the size...
703 */
704
705 units = strchr(ptr, '.');
706 while (units && isdigit(units[1] & 255))
707 units = strchr(units + 1, '.');
708
709 if (units)
710 units -= 2;
711 else
712 units = ptr + strlen(ptr) - 2;
713
714 if (units > ptr)
715 {
716 if (isdigit(*units & 255) || *units == '.')
717 units ++;
718
719 if (!_cups_strncasecmp(units, "cm", 2))
720 {
721 numer = 1000;
722 denom = 1;
723 }
724 else if (!_cups_strncasecmp(units, "ft", 2))
725 {
726 numer = 2540 * 12;
727 denom = 1;
728 }
729 else if (!_cups_strncasecmp(units, "in", 2))
730 {
731 numer = 2540;
732 denom = 1;
733 }
734 else if (!_cups_strncasecmp(units, "mm", 2))
735 {
736 numer = 100;
737 denom = 1;
738 }
739 else if (*units == 'm' || *units == 'M')
740 {
741 numer = 100000;
742 denom = 1;
743 }
744 else if (!_cups_strncasecmp(units, "pt", 2))
745 {
746 numer = 2540;
747 denom = 72;
748 }
749 }
750
751 w = pwg_scan_measurement(ptr, &ptr, numer, denom);
752
753 if (ptr && ptr > ppd && *ptr == 'x')
754 {
755 l = pwg_scan_measurement(ptr + 1, &ptr, numer, denom);
756
757 if (ptr)
758 {
759 /*
760 * Not a standard size; convert it to a PWG custom name of the form:
761 *
762 * [oe|om]_WIDTHxHEIGHTuu_WIDTHxHEIGHTuu
763 */
764
765 char wstr[32], lstr[32]; /* Width and length as strings */
766
767 size = &(cg->pwg_media);
768 size->width = w;
769 size->length = l;
770 size->pwg = cg->pwg_name;
771
772 pwgFormatSizeName(cg->pwg_name, sizeof(cg->pwg_name),
773 custom ? "custom" : NULL, custom ? ppd + 7 : NULL,
774 size->width, size->length, NULL);
775
776 if ((w % 635) == 0 && (l % 635) == 0)
777 snprintf(cg->ppd_name, sizeof(cg->ppd_name), "%sx%s", pwg_format_inches(wstr, sizeof(wstr), w), pwg_format_inches(lstr, sizeof(lstr), l));
778 else
779 snprintf(cg->ppd_name, sizeof(cg->ppd_name), "%sx%smm", pwg_format_millimeters(wstr, sizeof(wstr), w), pwg_format_millimeters(lstr, sizeof(lstr), l));
780 size->ppd = cg->ppd_name;
781 }
782 }
783 }
784
785 return (size);
786 }
787
788
789 /*
790 * 'pwgMediaForPWG()' - Find a PWG media size by 5101.1 self-describing name.
791 *
792 * The "pwg" argument specifies a self-describing media size name of the form
793 * "prefix_name_WIDTHxLENGTHunits" as defined in PWG 5101.1.
794 *
795 * If the name is non-standard, the returned PWG media size is stored in
796 * thread-local storage and is overwritten by each call to the function in the
797 * thread.
798 *
799 * @since CUPS 1.7/macOS 10.9@
800 */
801
802 pwg_media_t * /* O - Matching size or NULL */
803 pwgMediaForPWG(const char *pwg) /* I - PWG size name */
804 {
805 char *ptr; /* Pointer into name */
806 pwg_media_t key, /* Search key */
807 *size; /* Matching size */
808 _cups_globals_t *cg = _cupsGlobals(); /* Global data */
809
810
811 /*
812 * Range check input...
813 */
814
815 if (!pwg)
816 return (NULL);
817
818 /*
819 * Build the lookup table for PWG names as needed...
820 */
821
822 if (!cg->pwg_size_lut)
823 {
824 int i; /* Looping var */
825
826 cg->pwg_size_lut = cupsArrayNew((cups_array_func_t)pwg_compare_pwg, NULL);
827
828 for (i = (int)(sizeof(cups_pwg_media) / sizeof(cups_pwg_media[0])),
829 size = (pwg_media_t *)cups_pwg_media;
830 i > 0;
831 i --, size ++)
832 cupsArrayAdd(cg->pwg_size_lut, size);
833 }
834
835 /*
836 * Lookup the name...
837 */
838
839 key.pwg = pwg;
840 if ((size = (pwg_media_t *)cupsArrayFind(cg->pwg_size_lut, &key)) == NULL &&
841 (ptr = (char *)strchr(pwg, '_')) != NULL &&
842 (ptr = (char *)strchr(ptr + 1, '_')) != NULL)
843 {
844 /*
845 * Try decoding the self-describing name of the form:
846 *
847 * class_name_WWWxHHHin
848 * class_name_WWWxHHHmm
849 */
850
851 int w, l; /* Width and length of page */
852 int numer; /* Scale factor for units */
853 const char *units = ptr + strlen(ptr) - 2;
854 /* Units from size */
855
856 ptr ++;
857
858 if (units >= ptr && !strcmp(units, "in"))
859 numer = 2540;
860 else
861 numer = 100;
862
863 w = pwg_scan_measurement(ptr, &ptr, numer, 1);
864
865 if (ptr && *ptr == 'x')
866 {
867 l = pwg_scan_measurement(ptr + 1, &ptr, numer, 1);
868
869 if (ptr)
870 {
871 char wstr[32], lstr[32]; /* Width and length strings */
872
873 if (!strncmp(pwg, "disc_", 5))
874 w = l; /* Make the media size OUTERxOUTER */
875
876 size = &(cg->pwg_media);
877 size->width = w;
878 size->length = l;
879
880 strlcpy(cg->pwg_name, pwg, sizeof(cg->pwg_name));
881 size->pwg = cg->pwg_name;
882
883 if (numer == 100)
884 snprintf(cg->ppd_name, sizeof(cg->ppd_name), "%sx%smm", pwg_format_millimeters(wstr, sizeof(wstr), w), pwg_format_millimeters(lstr, sizeof(lstr), l));
885 else
886 snprintf(cg->ppd_name, sizeof(cg->ppd_name), "%sx%s", pwg_format_inches(wstr, sizeof(wstr), w), pwg_format_inches(lstr, sizeof(lstr), l));
887 size->ppd = cg->ppd_name;
888 }
889 }
890 }
891
892 return (size);
893 }
894
895
896 /*
897 * 'pwgMediaForSize()' - Get the PWG media size for the given dimensions.
898 *
899 * The "width" and "length" are in hundredths of millimeters, equivalent to
900 * 1/100000th of a meter or 1/2540th of an inch.
901 *
902 * If the dimensions are non-standard, the returned PWG media size is stored in
903 * thread-local storage and is overwritten by each call to the function in the
904 * thread.
905 *
906 * @since CUPS 1.7/macOS 10.9@
907 */
908
909 pwg_media_t * /* O - PWG media name */
910 pwgMediaForSize(int width, /* I - Width in hundredths of millimeters */
911 int length) /* I - Length in hundredths of millimeters */
912 {
913 /*
914 * Adobe uses a size matching algorithm with an epsilon of 5 points, which
915 * is just about 176/2540ths...
916 */
917
918 return (_pwgMediaNearSize(width, length, 176));
919 }
920
921
922 /*
923 * '_pwgMediaNearSize()' - Get the PWG media size within the given tolerance.
924 */
925
926 pwg_media_t * /* O - PWG media name */
927 _pwgMediaNearSize(int width, /* I - Width in hundredths of millimeters */
928 int length, /* I - Length in hundredths of millimeters */
929 int epsilon) /* I - Match within this tolernace. PWG units */
930 {
931 int i; /* Looping var */
932 pwg_media_t *media, /* Current media */
933 *best_media = NULL; /* Best match */
934 int dw, dl, /* Difference in width and length */
935 best_dw = 999, /* Best difference in width and length */
936 best_dl = 999;
937 char wstr[32], lstr[32]; /* Width and length as strings */
938 _cups_globals_t *cg = _cupsGlobals(); /* Global data */
939
940
941 /*
942 * Range check input...
943 */
944
945 if (width <= 0 || length <= 0)
946 return (NULL);
947
948 /*
949 * Look for a standard size...
950 */
951
952 for (i = (int)(sizeof(cups_pwg_media) / sizeof(cups_pwg_media[0])),
953 media = (pwg_media_t *)cups_pwg_media;
954 i > 0;
955 i --, media ++)
956 {
957
958 dw = abs(media->width - width);
959 dl = abs(media->length - length);
960
961 if (!dw && !dl)
962 return (media);
963 else if (dw <= epsilon && dl <= epsilon)
964 {
965 if (dw <= best_dw && dl <= best_dl)
966 {
967 best_media = media;
968 best_dw = dw;
969 best_dl = dl;
970 }
971 }
972 }
973
974 if (best_media)
975 return (best_media);
976
977 /*
978 * Not a standard size; convert it to a PWG custom name of the form:
979 *
980 * custom_WIDTHxHEIGHTuu_WIDTHxHEIGHTuu
981 */
982
983 pwgFormatSizeName(cg->pwg_name, sizeof(cg->pwg_name), "custom", NULL, width,
984 length, NULL);
985
986 cg->pwg_media.pwg = cg->pwg_name;
987 cg->pwg_media.width = width;
988 cg->pwg_media.length = length;
989
990 if ((width % 635) == 0 && (length % 635) == 0)
991 snprintf(cg->ppd_name, sizeof(cg->ppd_name), "%sx%s", pwg_format_inches(wstr, sizeof(wstr), width), pwg_format_inches(lstr, sizeof(lstr), length));
992 else
993 snprintf(cg->ppd_name, sizeof(cg->ppd_name), "%sx%smm", pwg_format_millimeters(wstr, sizeof(wstr), width), pwg_format_millimeters(lstr, sizeof(lstr), length));
994 cg->pwg_media.ppd = cg->ppd_name;
995
996 return (&(cg->pwg_media));
997 }
998
999
1000 /*
1001 * '_pwgMediaTable()' - Return the internal media size table.
1002 */
1003
1004 const pwg_media_t * /* O - Pointer to first entry */
1005 _pwgMediaTable(size_t *num_media) /* O - Number of entries */
1006 {
1007 *num_media = sizeof(cups_pwg_media) / sizeof(cups_pwg_media[0]);
1008
1009 return (cups_pwg_media);
1010 }
1011
1012
1013 /*
1014 * 'pwg_compare_legacy()' - Compare two sizes using the legacy names.
1015 */
1016
1017 static int /* O - Result of comparison */
1018 pwg_compare_legacy(pwg_media_t *a, /* I - First size */
1019 pwg_media_t *b) /* I - Second size */
1020 {
1021 return (strcmp(a->legacy, b->legacy));
1022 }
1023
1024
1025 /*
1026 * 'pwg_compare_ppd()' - Compare two sizes using the PPD names.
1027 */
1028
1029 static int /* O - Result of comparison */
1030 pwg_compare_ppd(pwg_media_t *a, /* I - First size */
1031 pwg_media_t *b) /* I - Second size */
1032 {
1033 return (strcmp(a->ppd, b->ppd));
1034 }
1035
1036
1037 /*
1038 * 'pwg_compare_pwg()' - Compare two sizes using the PWG names.
1039 */
1040
1041 static int /* O - Result of comparison */
1042 pwg_compare_pwg(pwg_media_t *a, /* I - First size */
1043 pwg_media_t *b) /* I - Second size */
1044 {
1045 return (strcmp(a->pwg, b->pwg));
1046 }
1047
1048
1049 /*
1050 * 'pwg_format_inches()' - Convert and format PWG units as inches.
1051 */
1052
1053 static char * /* O - String */
1054 pwg_format_inches(char *buf, /* I - Buffer */
1055 size_t bufsize, /* I - Size of buffer */
1056 int val) /* I - Value in hundredths of millimeters */
1057 {
1058 int thousandths, /* Thousandths of inches */
1059 integer, /* Integer portion */
1060 fraction; /* Fractional portion */
1061
1062
1063 /*
1064 * Convert hundredths of millimeters to thousandths of inches and round to
1065 * the nearest thousandth.
1066 */
1067
1068 thousandths = (val * 1000 + 1270) / 2540;
1069 integer = thousandths / 1000;
1070 fraction = thousandths % 1000;
1071
1072 /*
1073 * Format as a pair of integers (avoids locale stuff), avoiding trailing
1074 * zeros...
1075 */
1076
1077 if (fraction == 0)
1078 snprintf(buf, bufsize, "%d", integer);
1079 else if (fraction % 10)
1080 snprintf(buf, bufsize, "%d.%03d", integer, fraction);
1081 else if (fraction % 100)
1082 snprintf(buf, bufsize, "%d.%02d", integer, fraction / 10);
1083 else
1084 snprintf(buf, bufsize, "%d.%01d", integer, fraction / 100);
1085
1086 return (buf);
1087 }
1088
1089
1090 /*
1091 * 'pwg_format_millimeters()' - Convert and format PWG units as millimeters.
1092 */
1093
1094 static char * /* O - String */
1095 pwg_format_millimeters(char *buf, /* I - Buffer */
1096 size_t bufsize, /* I - Size of buffer */
1097 int val) /* I - Value in hundredths of millimeters */
1098 {
1099 int integer, /* Integer portion */
1100 fraction; /* Fractional portion */
1101
1102
1103 /*
1104 * Convert hundredths of millimeters to integer and fractional portions.
1105 */
1106
1107 integer = val / 100;
1108 fraction = val % 100;
1109
1110 /*
1111 * Format as a pair of integers (avoids locale stuff), avoiding trailing
1112 * zeros...
1113 */
1114
1115 if (fraction == 0)
1116 snprintf(buf, bufsize, "%d", integer);
1117 else if (fraction % 10)
1118 snprintf(buf, bufsize, "%d.%02d", integer, fraction);
1119 else
1120 snprintf(buf, bufsize, "%d.%01d", integer, fraction / 10);
1121
1122 return (buf);
1123 }
1124
1125
1126 /*
1127 * 'pwg_scan_measurement()' - Scan a measurement in inches or millimeters.
1128 *
1129 * The "factor" argument specifies the scale factor for the units to convert to
1130 * hundredths of millimeters. The returned value is NOT rounded but is an
1131 * exact conversion of the fraction value (no floating point is used).
1132 */
1133
1134 static int /* O - Hundredths of millimeters */
1135 pwg_scan_measurement(
1136 const char *buf, /* I - Number string */
1137 char **bufptr, /* O - First byte after the number */
1138 int numer, /* I - Numerator from units */
1139 int denom) /* I - Denominator from units */
1140 {
1141 int value = 0, /* Measurement value */
1142 fractional = 0, /* Fractional value */
1143 divisor = 1, /* Fractional divisor */
1144 digits = 10 * numer * denom; /* Maximum fractional value to read */
1145
1146
1147 /*
1148 * Scan integer portion...
1149 */
1150
1151 while (*buf >= '0' && *buf <= '9')
1152 value = value * 10 + (*buf++) - '0';
1153
1154 if (*buf == '.')
1155 {
1156 /*
1157 * Scan fractional portion...
1158 */
1159
1160 buf ++;
1161
1162 while (divisor < digits && *buf >= '0' && *buf <= '9')
1163 {
1164 fractional = fractional * 10 + (*buf++) - '0';
1165 divisor *= 10;
1166 }
1167
1168 /*
1169 * Skip trailing digits that won't contribute...
1170 */
1171
1172 while (*buf >= '0' && *buf <= '9')
1173 buf ++;
1174 }
1175
1176 if (bufptr)
1177 *bufptr = (char *)buf;
1178
1179 return (value * numer / denom + fractional * numer / denom / divisor);
1180 }
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