64 Zeilen
1.8 KiB
PHP
64 Zeilen
1.8 KiB
PHP
<?php
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declare(strict_types = 1);
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namespace BaconQrCode\Renderer\Module;
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use BaconQrCode\Encoder\ByteMatrix;
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use BaconQrCode\Exception\InvalidArgumentException;
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use BaconQrCode\Renderer\Path\Path;
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/**
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* Renders individual modules as dots.
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*/
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final class DotsModule implements ModuleInterface
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{
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public const LARGE = 1;
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public const MEDIUM = .8;
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public const SMALL = .6;
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/**
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* @var float
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*/
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private $size;
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public function __construct(float $size)
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{
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if ($size <= 0 || $size > 1) {
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throw new InvalidArgumentException('Size must between 0 (exclusive) and 1 (inclusive)');
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}
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$this->size = $size;
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}
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public function createPath(ByteMatrix $matrix) : Path
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{
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$width = $matrix->getWidth();
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$height = $matrix->getHeight();
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$path = new Path();
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$halfSize = $this->size / 2;
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$margin = (1 - $this->size) / 2;
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for ($y = 0; $y < $height; ++$y) {
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for ($x = 0; $x < $width; ++$x) {
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if (! $matrix->get($x, $y)) {
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continue;
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}
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$pathX = $x + $margin;
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$pathY = $y + $margin;
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$path = $path
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->move($pathX + $this->size, $pathY + $halfSize)
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->ellipticArc($halfSize, $halfSize, 0, false, true, $pathX + $halfSize, $pathY + $this->size)
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->ellipticArc($halfSize, $halfSize, 0, false, true, $pathX, $pathY + $halfSize)
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->ellipticArc($halfSize, $halfSize, 0, false, true, $pathX + $halfSize, $pathY)
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->ellipticArc($halfSize, $halfSize, 0, false, true, $pathX + $this->size, $pathY + $halfSize)
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->close()
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;
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}
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}
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return $path;
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}
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}
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