2024-06-12 11:37:40 +08:00

60 lines
2.4 KiB
PHP

<?php
namespace Picqer\Barcode;
class BarcodeGeneratorSVG extends BarcodeGenerator
{
/**
* Return a SVG string representation of barcode.
*
* @param $barcode (string) code to print
* @param BarcodeGenerator::TYPE_* $type (string) type of barcode
* @param $widthFactor (float) Minimum width of a single bar in user units.
* @param $height (float) Height of barcode in user units.
* @param $foregroundColor (string) Foreground color (in SVG format) for bar elements (background is transparent).
* @return string SVG code.
* @public
*/
public function getBarcode(string $barcode, $type, float $widthFactor = 2, float $height = 30, string $foregroundColor = 'black'): string
{
$barcodeData = $this->getBarcodeData($barcode, $type);
// replace table for special characters
$repstr = [
"\0" => '',
'&' => '&amp;',
'<' => '&lt;',
'>' => '&gt;',
];
$width = round(($barcodeData->getWidth() * $widthFactor), 3);
$svg = '<?xml version="1.0" standalone="no" ?>' . PHP_EOL;
$svg .= '<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">' . PHP_EOL;
$svg .= '<svg width="' . $width . '" height="' . $height . '" viewBox="0 0 ' . $width . ' ' . $height . '" version="1.1" xmlns="http://www.w3.org/2000/svg">' . PHP_EOL;
$svg .= "\t" . '<desc>' . strtr($barcodeData->getBarcode(), $repstr) . '</desc>' . PHP_EOL;
$svg .= "\t" . '<g id="bars" fill="' . $foregroundColor . '" stroke="none">' . PHP_EOL;
// print bars
$positionHorizontal = 0;
/** @var BarcodeBar $bar */
foreach ($barcodeData->getBars() as $bar) {
$barWidth = round(($bar->getWidth() * $widthFactor), 3);
$barHeight = round(($bar->getHeight() * $height / $barcodeData->getHeight()), 3);
if ($bar->isBar() && $barWidth > 0) {
$positionVertical = round(($bar->getPositionVertical() * $height / $barcodeData->getHeight()), 3);
// draw a vertical bar
$svg .= "\t\t" . '<rect x="' . $positionHorizontal . '" y="' . $positionVertical . '" width="' . $barWidth . '" height="' . $barHeight . '" />' . PHP_EOL;
}
$positionHorizontal += $barWidth;
}
$svg .= "\t</g>" . PHP_EOL;
$svg .= '</svg>' . PHP_EOL;
return $svg;
}
}