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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Phpdftk\Pdf\Core; |
| 6 | |
| 7 | /** |
| 8 | * Represents a PDF dictionary object: << /Key value ... >> |
| 9 | * |
| 10 | * Keys are plain strings (no leading slash needed; added during serialization). |
| 11 | * Values may be any Serializable, scalar int/float/bool, or null. |
| 12 | */ |
| 13 | class PdfDictionary implements Serializable |
| 14 | { |
| 15 | /** @param array<string, mixed> $entries */ |
| 16 | public function __construct(public array $entries = []) {} |
| 17 | |
| 18 | /** |
| 19 | * Set or replace an entry. Returns $this for fluent chaining. |
| 20 | */ |
| 21 | public function set(string $key, mixed $value): self |
| 22 | { |
| 23 | $this->entries[$key] = $value; |
| 24 | return $this; |
| 25 | } |
| 26 | |
| 27 | /** |
| 28 | * Get an entry value by key. |
| 29 | */ |
| 30 | public function get(string $key): mixed |
| 31 | { |
| 32 | return $this->entries[$key] ?? null; |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * Check whether a key exists. |
| 37 | */ |
| 38 | public function has(string $key): bool |
| 39 | { |
| 40 | return array_key_exists($key, $this->entries); |
| 41 | } |
| 42 | |
| 43 | public function toPdf(): string |
| 44 | { |
| 45 | $lines = ['<<']; |
| 46 | foreach ($this->entries as $key => $value) { |
| 47 | $serialized = match (true) { |
| 48 | $value instanceof Serializable => $value->toPdf(), |
| 49 | is_int($value), is_float($value) => (new PdfNumber($value))->toPdf(), |
| 50 | is_bool($value) => (new PdfBoolean($value))->toPdf(), |
| 51 | is_null($value) => 'null', |
| 52 | default => (string) $value, |
| 53 | }; |
| 54 | $lines[] = '/' . $key . ' ' . $serialized; |
| 55 | } |
| 56 | $lines[] = '>>'; |
| 57 | |
| 58 | return implode("\n", $lines); |
| 59 | } |
| 60 | } |