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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Phpdftk\Pdf\Writer; |
| 6 | |
| 7 | /** |
| 8 | * Dash pattern for stroked paths. |
| 9 | * |
| 10 | * Wraps the PDF dash array + phase for use with Page::drawLine() |
| 11 | * and other stroked shape methods. |
| 12 | */ |
| 13 | final class DashPattern |
| 14 | { |
| 15 | /** |
| 16 | * @param float[] $pattern Alternating on/off lengths in points (e.g. [4, 2]) |
| 17 | * @param float $phase Offset into the pattern to start at |
| 18 | */ |
| 19 | public function __construct( |
| 20 | public readonly array $pattern, |
| 21 | public readonly float $phase = 0, |
| 22 | ) {} |
| 23 | |
| 24 | public static function solid(): self |
| 25 | { |
| 26 | return new self([], 0); |
| 27 | } |
| 28 | |
| 29 | public static function dashed(float $on = 4, float $off = 4): self |
| 30 | { |
| 31 | return new self([$on, $off]); |
| 32 | } |
| 33 | |
| 34 | public static function dotted(float $dot = 1, float $gap = 2): self |
| 35 | { |
| 36 | return new self([$dot, $gap]); |
| 37 | } |
| 38 | |
| 39 | public static function dashDot(float $dash = 6, float $dot = 1, float $gap = 2): self |
| 40 | { |
| 41 | return new self([$dash, $gap, $dot, $gap]); |
| 42 | } |
| 43 | |
| 44 | /** |
| 45 | * @return array{0: float[], 1: float} For ContentStream::setDashPattern() |
| 46 | */ |
| 47 | public function toOperatorArgs(): array |
| 48 | { |
| 49 | return [$this->pattern, $this->phase]; |
| 50 | } |
| 51 | } |