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| 1 | <?php |
| 2 | /** |
| 3 | * Pop PHP Framework (http://www.popphp.org/) |
| 4 | * |
| 5 | * @link https://github.com/popphp/popphp-framework |
| 6 | * @author Nick Sagona, III <dev@nolainteractive.com> |
| 7 | * @copyright Copyright (c) 2009-2024 NOLA Interactive, LLC. (http://www.nolainteractive.com) |
| 8 | * @license http://www.popphp.org/license New BSD License |
| 9 | */ |
| 10 | |
| 11 | /** |
| 12 | * @namespace |
| 13 | */ |
| 14 | namespace Pop\Pdf\Build\Font\TrueType\Table; |
| 15 | |
| 16 | use Pop\Pdf\Build\Font; |
| 17 | use Pop\Utils\ArrayObject as Data; |
| 18 | use Pop\Utils\Exception; |
| 19 | |
| 20 | /** |
| 21 | * OS/2 table class |
| 22 | * |
| 23 | * @category Pop |
| 24 | * @package Pop\Pdf |
| 25 | * @author Nick Sagona, III <dev@nolainteractive.com> |
| 26 | * @copyright Copyright (c) 2009-2024 NOLA Interactive, LLC. (http://www.nolainteractive.com) |
| 27 | * @license http://www.popphp.org/license New BSD License |
| 28 | * @version 5.0.0 |
| 29 | */ |
| 30 | class Os2 extends AbstractTable |
| 31 | { |
| 32 | |
| 33 | /** |
| 34 | * Font table properties |
| 35 | * @var array |
| 36 | */ |
| 37 | protected array $properties = [ |
| 38 | 'capHeight' => 0, |
| 39 | 'embeddable' => true, |
| 40 | 'flags' => null |
| 41 | ]; |
| 42 | |
| 43 | /** |
| 44 | * Constructor |
| 45 | * |
| 46 | * Instantiate a OTF 'OS/2' table object. |
| 47 | * |
| 48 | * @param Font\TrueType $font |
| 49 | * @throws Exception |
| 50 | */ |
| 51 | public function __construct(Font\TrueType $font) |
| 52 | { |
| 53 | $this->properties['flags'] = new Data([ |
| 54 | 'isFixedPitch' => false, |
| 55 | 'isSerif' => false, |
| 56 | 'isSymbolic' => false, |
| 57 | 'isScript' => false, |
| 58 | 'isNonSymbolic' => false, |
| 59 | 'isItalic' => false, |
| 60 | 'isAllCap' => false, |
| 61 | 'isSmallCap' => false, |
| 62 | 'isForceBold' => false |
| 63 | ]); |
| 64 | |
| 65 | $bytePos = $font->tableInfo['OS/2']->offset + 8; |
| 66 | $ary = unpack("nfsType", $font->read($bytePos, 2)); |
| 67 | $this->properties['embeddable'] = (($ary['fsType'] != 2) && (($ary['fsType'] & 0x200) == 0)); |
| 68 | |
| 69 | $bytePos = $font->tableInfo['OS/2']->offset + 30; |
| 70 | $ary = unpack("nfamily_class", $font->read($bytePos, 2)); |
| 71 | $familyClass = ($font->shiftToSigned($ary['family_class']) >> 8); |
| 72 | |
| 73 | if ((($familyClass >= 1) && ($familyClass <= 5)) || ($familyClass == 7)) { |
| 74 | $this->properties['flags']['isSerif'] = true; |
| 75 | } else if ($familyClass == 8) { |
| 76 | $this->properties['flags']['isSerif'] = false; |
| 77 | } |
| 78 | if ($familyClass == 10) { |
| 79 | $this->properties['flags']['isScript'] = true; |
| 80 | } |
| 81 | if ($familyClass == 12) { |
| 82 | $this->properties['flags']['isSymbolic'] = true; |
| 83 | $this->properties['flags']['isNonSymbolic'] = false; |
| 84 | } else { |
| 85 | $this->properties['flags']['isSymbolic'] = false; |
| 86 | $this->properties['flags']['isNonSymbolic'] = true; |
| 87 | } |
| 88 | |
| 89 | // Unicode bit-sniffing may not be necessary. |
| 90 | $bytePos += 3; |
| 91 | $ary = unpack( |
| 92 | 'NunicodeRange1/' . |
| 93 | 'NunicodeRange2/' . |
| 94 | 'NunicodeRange3/' . |
| 95 | 'NunicodeRange4', $font->read($bytePos, 16) |
| 96 | ); |
| 97 | |
| 98 | if (($ary['unicodeRange1'] == 1) && ($ary['unicodeRange2'] == 0) && ($ary['unicodeRange3'] == 0) && ($ary['unicodeRange4'] == 0)) { |
| 99 | $this->properties['flags']['isSymbolic'] = false; |
| 100 | $this->properties['flags']['isNonSymbolic'] = true; |
| 101 | } |
| 102 | |
| 103 | $bytePos = $font->tableInfo['OS/2']->offset + 76; |
| 104 | $ary = unpack("ncap/", $font->read($bytePos, 2)); |
| 105 | $this->properties['flags']['capHeight'] = $font->toEmSpace($font->shiftToSigned($ary['cap'])); |
| 106 | } |
| 107 | |
| 108 | } |