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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Phpdftk\Pdf\Core\Document; |
| 6 | |
| 7 | use Phpdftk\Pdf\Core\PdfArray; |
| 8 | use Phpdftk\Pdf\Core\PdfName; |
| 9 | use Phpdftk\Pdf\Core\PdfNull; |
| 10 | use Phpdftk\Pdf\Core\PdfNumber; |
| 11 | use Phpdftk\Pdf\Core\PdfReference; |
| 12 | use Phpdftk\Pdf\Core\Serializable; |
| 13 | |
| 14 | /** |
| 15 | * Explicit destination array (ISO 32000-2 Table 148). |
| 16 | * |
| 17 | * Represents a destination within a PDF document, specifying a page |
| 18 | * and the desired view when navigating to that page. |
| 19 | */ |
| 20 | class Destination implements Serializable |
| 21 | { |
| 22 | /** |
| 23 | * @param array<int, float|null> $params |
| 24 | */ |
| 25 | private function __construct( |
| 26 | private PdfReference $page, |
| 27 | private PdfName $type, |
| 28 | private array $params, |
| 29 | ) {} |
| 30 | |
| 31 | /** |
| 32 | * /XYZ left top zoom — display page at given position and zoom. |
| 33 | * Null parameters indicate "unchanged". |
| 34 | */ |
| 35 | public static function xyz(PdfReference $page, ?float $left = null, ?float $top = null, ?float $zoom = null): self |
| 36 | { |
| 37 | return new self($page, new PdfName('XYZ'), [$left, $top, $zoom]); |
| 38 | } |
| 39 | |
| 40 | /** |
| 41 | * /Fit — fit entire page in window. |
| 42 | */ |
| 43 | public static function fit(PdfReference $page): self |
| 44 | { |
| 45 | return new self($page, new PdfName('Fit'), []); |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * /FitH top — fit page width, position at top coordinate. |
| 50 | */ |
| 51 | public static function fitH(PdfReference $page, ?float $top = null): self |
| 52 | { |
| 53 | return new self($page, new PdfName('FitH'), [$top]); |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * /FitV left — fit page height, position at left coordinate. |
| 58 | */ |
| 59 | public static function fitV(PdfReference $page, ?float $left = null): self |
| 60 | { |
| 61 | return new self($page, new PdfName('FitV'), [$left]); |
| 62 | } |
| 63 | |
| 64 | /** |
| 65 | * /FitR left bottom right top — fit rectangle in window. |
| 66 | */ |
| 67 | public static function fitR(PdfReference $page, float $left, float $bottom, float $right, float $top): self |
| 68 | { |
| 69 | return new self($page, new PdfName('FitR'), [$left, $bottom, $right, $top]); |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * /FitB — fit bounding box in window. |
| 74 | */ |
| 75 | public static function fitB(PdfReference $page): self |
| 76 | { |
| 77 | return new self($page, new PdfName('FitB'), []); |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * /FitBH top — fit bounding box width, position at top. |
| 82 | */ |
| 83 | public static function fitBH(PdfReference $page, ?float $top = null): self |
| 84 | { |
| 85 | return new self($page, new PdfName('FitBH'), [$top]); |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * /FitBV left — fit bounding box height, position at left. |
| 90 | */ |
| 91 | public static function fitBV(PdfReference $page, ?float $left = null): self |
| 92 | { |
| 93 | return new self($page, new PdfName('FitBV'), [$left]); |
| 94 | } |
| 95 | |
| 96 | public function toPdf(): string |
| 97 | { |
| 98 | $items = [$this->page, $this->type]; |
| 99 | |
| 100 | foreach ($this->params as $param) { |
| 101 | if ($param === null) { |
| 102 | $items[] = new PdfNull(); |
| 103 | } else { |
| 104 | $items[] = new PdfNumber($param); |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | return (new PdfArray($items))->toPdf(); |
| 109 | } |
| 110 | } |