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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Phpdftk\Pdf\Core\Content; |
| 6 | |
| 7 | use Phpdftk\Pdf\Core\PdfArray; |
| 8 | use Phpdftk\Pdf\Core\PdfDictionary; |
| 9 | use Phpdftk\Pdf\Core\PdfName; |
| 10 | use Phpdftk\Pdf\Core\PdfReference; |
| 11 | use Phpdftk\Pdf\Core\Serializable; |
| 12 | |
| 13 | /** |
| 14 | * Resource dictionary used by Page and FormXObject. |
| 15 | * Maps resource names to their referenced objects. |
| 16 | */ |
| 17 | class Resources implements Serializable |
| 18 | { |
| 19 | /** @var array<string, PdfReference> */ |
| 20 | public array $extGState = []; // /ExtGState |
| 21 | /** @var array<string, PdfReference> */ |
| 22 | public array $colorSpace = []; // /ColorSpace |
| 23 | /** @var array<string, PdfReference> */ |
| 24 | public array $pattern = []; // /Pattern |
| 25 | /** @var array<string, PdfReference> */ |
| 26 | public array $shading = []; // /Shading |
| 27 | /** @var array<string, PdfReference> */ |
| 28 | public array $xObject = []; // /XObject |
| 29 | /** @var array<string, PdfReference> */ |
| 30 | public array $font = []; // /Font - key => resource name, value => PdfReference |
| 31 | /** @var array<int, string> */ |
| 32 | public array $procSet = []; // /ProcSet |
| 33 | /** @var array<string, PdfReference> */ |
| 34 | public array $properties = []; // /Properties |
| 35 | |
| 36 | public function addFont(string $name, PdfReference $ref): void |
| 37 | { |
| 38 | $this->font[$name] = $ref; |
| 39 | } |
| 40 | |
| 41 | public function addXObject(string $name, PdfReference $ref): void |
| 42 | { |
| 43 | $this->xObject[$name] = $ref; |
| 44 | } |
| 45 | |
| 46 | public function addExtGState(string $name, PdfReference $ref): void |
| 47 | { |
| 48 | $this->extGState[$name] = $ref; |
| 49 | } |
| 50 | |
| 51 | public function toPdf(): string |
| 52 | { |
| 53 | $dict = new PdfDictionary(); |
| 54 | |
| 55 | // /ProcSet |
| 56 | if (!empty($this->procSet)) { |
| 57 | $procItems = array_map(fn($p) => new PdfName($p), $this->procSet); |
| 58 | $dict->set('ProcSet', new PdfArray($procItems)); |
| 59 | } else { |
| 60 | // Default ProcSet for most documents |
| 61 | $dict->set('ProcSet', new PdfArray([ |
| 62 | new PdfName('PDF'), |
| 63 | new PdfName('Text'), |
| 64 | new PdfName('ImageB'), |
| 65 | new PdfName('ImageC'), |
| 66 | new PdfName('ImageI'), |
| 67 | ])); |
| 68 | } |
| 69 | |
| 70 | // /Font |
| 71 | if (!empty($this->font)) { |
| 72 | $fontDict = new PdfDictionary(); |
| 73 | foreach ($this->font as $name => $ref) { |
| 74 | $fontDict->set($name, $ref); |
| 75 | } |
| 76 | $dict->set('Font', $fontDict); |
| 77 | } |
| 78 | |
| 79 | // /XObject |
| 80 | if (!empty($this->xObject)) { |
| 81 | $xoDict = new PdfDictionary(); |
| 82 | foreach ($this->xObject as $name => $ref) { |
| 83 | $xoDict->set($name, $ref); |
| 84 | } |
| 85 | $dict->set('XObject', $xoDict); |
| 86 | } |
| 87 | |
| 88 | // /ExtGState |
| 89 | if (!empty($this->extGState)) { |
| 90 | $gsDict = new PdfDictionary(); |
| 91 | foreach ($this->extGState as $name => $ref) { |
| 92 | $gsDict->set($name, $ref); |
| 93 | } |
| 94 | $dict->set('ExtGState', $gsDict); |
| 95 | } |
| 96 | |
| 97 | // /ColorSpace |
| 98 | if (!empty($this->colorSpace)) { |
| 99 | $csDict = new PdfDictionary(); |
| 100 | foreach ($this->colorSpace as $name => $ref) { |
| 101 | $csDict->set($name, $ref); |
| 102 | } |
| 103 | $dict->set('ColorSpace', $csDict); |
| 104 | } |
| 105 | |
| 106 | // /Pattern |
| 107 | if (!empty($this->pattern)) { |
| 108 | $patDict = new PdfDictionary(); |
| 109 | foreach ($this->pattern as $name => $ref) { |
| 110 | $patDict->set($name, $ref); |
| 111 | } |
| 112 | $dict->set('Pattern', $patDict); |
| 113 | } |
| 114 | |
| 115 | // /Shading |
| 116 | if (!empty($this->shading)) { |
| 117 | $shadDict = new PdfDictionary(); |
| 118 | foreach ($this->shading as $name => $ref) { |
| 119 | $shadDict->set($name, $ref); |
| 120 | } |
| 121 | $dict->set('Shading', $shadDict); |
| 122 | } |
| 123 | |
| 124 | // /Properties |
| 125 | if (!empty($this->properties)) { |
| 126 | $propDict = new PdfDictionary(); |
| 127 | foreach ($this->properties as $name => $ref) { |
| 128 | $propDict->set($name, $ref); |
| 129 | } |
| 130 | $dict->set('Properties', $propDict); |
| 131 | } |
| 132 | |
| 133 | return $dict->toPdf(); |
| 134 | } |
| 135 | } |