Code Coverage |
||||||||||
Lines |
Functions and Methods |
Classes and Traits |
||||||||
| Total | |
100.00% |
7 / 7 |
|
100.00% |
2 / 2 |
CRAP | |
100.00% |
1 / 1 |
| FontContext | |
100.00% |
7 / 7 |
|
100.00% |
2 / 2 |
3 | |
100.00% |
1 / 1 |
| __construct | |
100.00% |
1 / 1 |
|
100.00% |
1 / 1 |
1 | |||
| textToHex | |
100.00% |
6 / 6 |
|
100.00% |
1 / 1 |
2 | |||
| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Phpdftk\Pdf\Core\Interactive\Form; |
| 6 | |
| 7 | use Phpdftk\Pdf\Core\PdfReference; |
| 8 | |
| 9 | /** |
| 10 | * Carries font metadata needed to render custom (non-standard) fonts |
| 11 | * in form field appearance streams. |
| 12 | * |
| 13 | * When passed to AppearanceGenerator methods, the generator will: |
| 14 | * - Use hex-encoded glyph IDs instead of literal text strings |
| 15 | * - Wire the font reference into the FormXObject's /Resources |
| 16 | * |
| 17 | * Build via PdfWriter after calling addCompositeFont() / addOpenTypeFont(): |
| 18 | * |
| 19 | * $fontCtx = new FontContext( |
| 20 | * fontRef: new PdfReference($type0Font->objectNumber), |
| 21 | * unicodeToGid: $parsedData->fullUnicodeToGid, |
| 22 | * ); |
| 23 | */ |
| 24 | final class FontContext |
| 25 | { |
| 26 | /** |
| 27 | * @param PdfReference $fontRef Indirect reference to the registered font object |
| 28 | * @param array<int, int> $unicodeToGid Unicode codepoint → glyph ID mapping |
| 29 | */ |
| 30 | public function __construct( |
| 31 | public readonly PdfReference $fontRef, |
| 32 | public readonly array $unicodeToGid, |
| 33 | ) {} |
| 34 | |
| 35 | /** |
| 36 | * Convert a UTF-8 string to hex-encoded 2-byte glyph ID sequence. |
| 37 | */ |
| 38 | public function textToHex(string $text): string |
| 39 | { |
| 40 | $hex = ''; |
| 41 | foreach (mb_str_split($text) as $char) { |
| 42 | $cp = mb_ord($char); |
| 43 | $gid = $this->unicodeToGid[$cp] ?? 0; |
| 44 | $hex .= sprintf('%04X', $gid); |
| 45 | } |
| 46 | return $hex; |
| 47 | } |
| 48 | } |