106 lines
2.5 KiB
PHP
106 lines
2.5 KiB
PHP
<?php
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/**
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* BaconQrCode
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*
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* @link http://github.com/Bacon/BaconQrCode For the canonical source repository
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* @copyright 2013 Ben 'DASPRiD' Scholzen
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* @license http://opensource.org/licenses/BSD-2-Clause Simplified BSD License
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*/
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namespace BaconQrCode;
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use BaconQrCode\Common\ErrorCorrectionLevel;
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use BaconQrCode\Encoder\Encoder;
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use BaconQrCode\Exception;
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use BaconQrCode\Renderer\RendererInterface;
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/**
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* QR code writer.
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*/
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class Writer
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{
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/**
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* Renderer instance.
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*
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* @var RendererInterface
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*/
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protected $renderer;
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/**
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* Creates a new writer with a specific renderer.
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*
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* @param RendererInterface $renderer
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*/
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public function __construct(RendererInterface $renderer)
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{
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$this->renderer = $renderer;
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}
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/**
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* Sets the renderer used to create a byte stream.
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*
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* @param RendererInterface $renderer
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* @return Writer
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*/
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public function setRenderer(RendererInterface $renderer)
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{
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$this->renderer = $renderer;
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return $this;
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}
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/**
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* Gets the renderer used to create a byte stream.
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*
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* @return RendererInterface
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*/
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public function getRenderer()
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{
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return $this->renderer;
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}
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/**
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* Writes QR code and returns it as string.
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*
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* Content is a string which *should* be encoded in UTF-8, in case there are
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* non ASCII-characters present.
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*
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* @param string $content
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* @param string $encoding
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* @param integer $ecLevel
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* @return string
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* @throws Exception\InvalidArgumentException
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*/
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public function writeString(
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$content,
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$encoding = Encoder::DEFAULT_BYTE_MODE_ECODING,
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$ecLevel = ErrorCorrectionLevel::L
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) {
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if (strlen($content) === 0) {
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throw new Exception\InvalidArgumentException('Found empty contents');
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}
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$qrCode = Encoder::encode($content, new ErrorCorrectionLevel($ecLevel), $encoding);
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return $this->getRenderer()->render($qrCode);
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}
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/**
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* Writes QR code to a file.
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*
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* @see Writer::writeString()
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* @param string $content
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* @param string $filename
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* @param string $encoding
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* @param integer $ecLevel
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* @return void
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*/
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public function writeFile(
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$content,
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$filename,
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$encoding = Encoder::DEFAULT_BYTE_MODE_ECODING,
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$ecLevel = ErrorCorrectionLevel::L
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) {
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file_put_contents($filename, $this->writeString($content, $encoding, $ecLevel));
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}
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}
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