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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, Data\QRMatrix}; |
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/** |
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* Converts the matrix into images, raw or base64 output |
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*/ |
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class QRImage extends QROutputAbstract{ |
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const transparencyTypes = [ |
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QRCode::OUTPUT_IMAGE_PNG, |
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QRCode::OUTPUT_IMAGE_GIF, |
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]; |
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protected $moduleValues = [ |
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// light |
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QRMatrix::M_DATA => [255, 255, 255], |
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QRMatrix::M_FINDER => [255, 255, 255], |
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QRMatrix::M_SEPARATOR => [255, 255, 255], |
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QRMatrix::M_ALIGNMENT => [255, 255, 255], |
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QRMatrix::M_TIMING => [255, 255, 255], |
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QRMatrix::M_FORMAT => [255, 255, 255], |
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QRMatrix::M_VERSION => [255, 255, 255], |
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QRMatrix::M_QUIETZONE => [255, 255, 255], |
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QRMatrix::M_TEST => [255, 255, 255], |
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// dark |
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QRMatrix::M_DARKMODULE << 8 => [0, 0, 0], |
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QRMatrix::M_DATA << 8 => [0, 0, 0], |
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QRMatrix::M_FINDER << 8 => [0, 0, 0], |
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QRMatrix::M_ALIGNMENT << 8 => [0, 0, 0], |
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QRMatrix::M_TIMING << 8 => [0, 0, 0], |
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QRMatrix::M_FORMAT << 8 => [0, 0, 0], |
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QRMatrix::M_VERSION << 8 => [0, 0, 0], |
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QRMatrix::M_TEST << 8 => [0, 0, 0], |
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]; |
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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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* @var int |
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*/ |
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protected $scale; |
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/** |
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* @var int |
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*/ |
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protected $length; |
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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 $background; |
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/** |
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* @return string |
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* @throws \chillerlan\QRCode\Output\QRCodeOutputException |
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*/ |
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public function dump():string{ |
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if($this->options->cachefile !== null && !is_writable(dirname($this->options->cachefile))){ |
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throw new QRCodeOutputException('Could not write data to cache file: '.$this->options->cachefile); |
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} |
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$this->setImage(); |
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$moduleValues = is_array($this->options->moduleValues[$this->matrix::M_DATA]) |
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? $this->options->moduleValues // @codeCoverageIgnore |
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: $this->moduleValues; |
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foreach($this->matrix->matrix() as $y => $row){ |
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foreach($row as $x => $pixel){ |
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$this->setPixel($x, $y, imagecolorallocate($this->image, ...$moduleValues[$pixel])); |
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} |
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} |
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$imageData = $this->dumpImage(); |
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if((bool)$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 $imageData; |
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} |
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/** |
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* @return void |
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*/ |
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protected function setImage(){ |
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$this->scale = $this->options->scale; |
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$this->length = $this->moduleCount * $this->scale; |
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$this->image = imagecreatetruecolor($this->length, $this->length); |
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$this->background = imagecolorallocate($this->image, ...$this->options->imageTransparencyBG); |
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if((bool)$this->options->imageTransparent && in_array($this->options->outputType, $this::transparencyTypes, true)){ |
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imagecolortransparent($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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} |
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/** |
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* @param $x |
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* @param $y |
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* @param $color |
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* @return void |
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*/ |
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protected function setPixel($x, $y, $color){ |
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imagefilledrectangle( |
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$this->image, |
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$x * $this->scale, |
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$y * $this->scale, |
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($x + 1) * $this->scale - 1, |
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($y + 1) * $this->scale - 1, |
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$color |
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); |
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} |
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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 { |
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ob_start(); |
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try{ |
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call_user_func([$this, $this->options->outputType ?? QRCode::OUTPUT_IMAGE_PNG]); |
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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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return $imageData; |
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} |
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/** |
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* @return void |
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*/ |
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View Code Duplication |
protected function png(){ |
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imagepng( |
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$this->image, |
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$this->options->cachefile, |
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in_array($this->options->pngCompression, range(-1, 9), true) |
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? $this->options->pngCompression |
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: -1 |
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); |
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} |
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/** |
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* Jiff - like... JitHub! |
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* @return void |
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*/ |
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protected function gif(){ |
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imagegif($this->image, $this->options->cachefile); |
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} |
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/** |
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* @return void |
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*/ |
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View Code Duplication |
protected function jpg(){ |
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imagejpeg( |
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$this->image, |
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$this->options->cachefile, |
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in_array($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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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.