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<?php |
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/** |
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* Class QRImage |
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* |
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* @filesource QRImage.php |
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* @created 05.12.2015 |
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* @package chillerlan\QRCode\Output |
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* @author Smiley <[email protected]> |
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* @copyright 2015 Smiley |
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* @license MIT |
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*/ |
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namespace chillerlan\QRCode\Output; |
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use chillerlan\QRCode\QRCode; |
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/** |
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* Converts the matrix into GD images, raw or base64 output |
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* requires ext-gd |
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* @link http://php.net/manual/book.image.php |
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*/ |
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class QRImage extends QROutputAbstract{ |
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protected const TRANSPARENCY_TYPES = [ |
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QRCode::OUTPUT_IMAGE_PNG, |
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QRCode::OUTPUT_IMAGE_GIF, |
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]; |
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/** |
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* @var string |
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*/ |
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protected $defaultMode = QRCode::OUTPUT_IMAGE_PNG; |
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/** |
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* @see imagecreatetruecolor() |
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* @var resource |
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*/ |
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protected $image; |
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/** |
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* @see imagecolorallocate() |
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* @var int |
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*/ |
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protected $background; |
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/** |
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* @return void |
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*/ |
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protected function setModuleValues():void{ |
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foreach($this::DEFAULT_MODULE_VALUES as $M_TYPE => $defaultValue){ |
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$v = $this->options->moduleValues[$M_TYPE] ?? null; |
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if(!is_array($v) || count($v) < 3){ |
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$this->moduleValues[$M_TYPE] = $defaultValue |
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? [0, 0, 0] |
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: [255, 255, 255]; |
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} |
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else{ |
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$this->moduleValues[$M_TYPE] = array_values($v); |
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} |
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} |
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} |
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/** |
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* @param string|null $file |
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* |
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* @return string |
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*/ |
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public function dump(string $file = null):string{ |
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$this->image = imagecreatetruecolor($this->length, $this->length); |
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$this->background = imagecolorallocate($this->image, ...array_values($this->options->imageTransparencyBG)); |
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if((bool)$this->options->imageTransparent && in_array($this->options->outputType, $this::TRANSPARENCY_TYPES, true)){ |
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imagecolortransparent($this->image, $this->background); |
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} |
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imagefilledrectangle($this->image, 0, 0, $this->length, $this->length, $this->background); |
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foreach($this->matrix->matrix() as $y => $row){ |
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foreach($row as $x => $M_TYPE){ |
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$this->setPixel($x, $y, $this->moduleValues[$M_TYPE]); |
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} |
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} |
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$imageData = $this->dumpImage($file); |
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if((bool)$this->options->imageBase64){ |
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$imageData = 'data:image/'.$this->options->outputType.';base64,'.base64_encode($imageData); |
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} |
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return $imageData; |
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} |
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/** |
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* @param int $x |
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* @param int $y |
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* @param array $rgb |
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* |
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* @return void |
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*/ |
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protected function setPixel(int $x, int $y, array $rgb):void{ |
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imagefilledrectangle( |
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$this->image, |
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$x * $this->scale, |
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$y * $this->scale, |
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($x + 1) * $this->scale, |
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($y + 1) * $this->scale, |
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imagecolorallocate($this->image, ...$rgb) |
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); |
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} |
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/** |
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* @param string|null $file |
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* |
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* @return string |
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* @throws \chillerlan\QRCode\Output\QRCodeOutputException |
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*/ |
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protected function dumpImage(string $file = null):string{ |
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$file = $file ?? $this->options->cachefile; |
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ob_start(); |
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try{ |
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call_user_func([$this, $this->outputMode ?? $this->defaultMode]); |
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} |
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// not going to cover edge cases |
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// @codeCoverageIgnoreStart |
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catch(\Exception $e){ |
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throw new QRCodeOutputException($e->getMessage()); |
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} |
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// @codeCoverageIgnoreEnd |
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$imageData = ob_get_contents(); |
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imagedestroy($this->image); |
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ob_end_clean(); |
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if($file !== null){ |
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$this->saveToFile($imageData, $file); |
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} |
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return $imageData; |
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} |
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/** |
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* @return void |
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*/ |
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protected function png():void{ |
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imagepng( |
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$this->image, |
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null, |
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in_array($this->options->pngCompression, range(-1, 9), true) |
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? $this->options->pngCompression |
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: -1 |
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); |
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} |
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/** |
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* Jiff - like... JitHub! |
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* @return void |
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*/ |
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protected function gif():void{ |
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imagegif($this->image); |
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} |
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/** |
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* @return void |
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*/ |
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protected function jpg():void{ |
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imagejpeg( |
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$this->image, |
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null, |
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in_array($this->options->jpegQuality, range(0, 100), true) |
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? $this->options->jpegQuality |
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: 85 |
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); |
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} |
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} |
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chillerlan /
php-qrcode
