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Long Term Support Release
<?php namespace PhpOffice\PhpSpreadsheet\Worksheet;> use GdImage; class MemoryDrawing extends BaseDrawing > use PhpOffice\PhpSpreadsheet\Exception; { >// Rendering functions const RENDERING_DEFAULT = 'imagepng'; const RENDERING_PNG = 'imagepng'; const RENDERING_GIF = 'imagegif'; const RENDERING_JPEG = 'imagejpeg'; // MIME types const MIMETYPE_DEFAULT = 'image/png'; const MIMETYPE_PNG = 'image/png'; const MIMETYPE_GIF = 'image/gif'; const MIMETYPE_JPEG = 'image/jpeg'; /** * Image resource. *< * @var resource> * @var null|GdImage|resource*/ private $imageResource; /** * Rendering function. * * @var string */ private $renderingFunction; /** * Mime type. * * @var string */ private $mimeType; /** * Unique name. * * @var string */ private $uniqueName; /** * Create a new MemoryDrawing. */ public function __construct() { // Initialise values< $this->imageResource = null;$this->renderingFunction = self::RENDERING_DEFAULT; $this->mimeType = self::MIMETYPE_DEFAULT;< $this->uniqueName = md5(rand(0, 9999) . time() . rand(0, 9999));> $this->uniqueName = md5(mt_rand(0, 9999) . time() . mt_rand(0, 9999));// Initialize parent parent::__construct(); }> public function __destruct() /** > { * Get image resource. > if ($this->imageResource) { * > imagedestroy($this->imageResource); * @return resource > $this->imageResource = null; */ > } public function getImageResource() > } { > return $this->imageResource; > public function __clone() } > { > parent::__clone(); /** > $this->cloneResource(); * Set image resource. > } * > * @param resource $value > private function cloneResource(): void * > { * @return MemoryDrawing > if (!$this->imageResource) { */ > return; public function setImageResource($value) > } { > $this->imageResource = $value; > $width = imagesx($this->imageResource); > $height = imagesy($this->imageResource); if ($this->imageResource !== null) { > // Get width/height > if (imageistruecolor($this->imageResource)) { $this->width = imagesx($this->imageResource); > $clone = imagecreatetruecolor($width, $height); $this->height = imagesy($this->imageResource); > if (!$clone) { } > throw new Exception('Could not clone image resource'); > } return $this; > } > imagealphablending($clone, false); > imagesavealpha($clone, true); /** > } else { * Get rendering function. > $clone = imagecreate($width, $height); * > if (!$clone) { * @return string > throw new Exception('Could not clone image resource'); */ > } public function getRenderingFunction() > { > // If the image has transparency... return $this->renderingFunction; > $transparent = imagecolortransparent($this->imageResource); } > if ($transparent >= 0) { > $rgb = imagecolorsforindex($this->imageResource, $transparent); /** > if (empty($rgb)) { * Set rendering function. > throw new Exception('Could not get image colors'); * > } * @param string $value see self::RENDERING_* > * > imagesavealpha($clone, true); * @return MemoryDrawing > $color = imagecolorallocatealpha($clone, $rgb['red'], $rgb['green'], $rgb['blue'], $rgb['alpha']); */ > if ($color === false) { public function setRenderingFunction($value) > throw new Exception('Could not get image alpha color'); { > } $this->renderingFunction = $value; > > imagefill($clone, 0, 0, $color); return $this; > } } > } > /** > //Create the Clone!! * Get mime type. > imagecopy($clone, $this->imageResource, 0, 0, 0, 0, $width, $height); * > * @return string > $this->imageResource = $clone; */ > } public function getMimeType() >< * @return resource> * @return null|GdImage|resource< * @param resource $value> * @param GdImage|resource $value< * @return MemoryDrawing> * @return $this< * @return MemoryDrawing> * @return $this/** * Set mime type. * * @param string $value see self::MIMETYPE_* *< * @return MemoryDrawing> * @return $this*/ public function setMimeType($value) { $this->mimeType = $value; return $this; } /** * Get indexed filename (using image index).< * < * @return string*/< public function getIndexedFilename()> public function getIndexedFilename(): string{ $extension = strtolower($this->getMimeType()); $extension = explode('/', $extension); $extension = $extension[1]; return $this->uniqueName . $this->getImageIndex() . '.' . $extension; } /** * Get hash code. * * @return string Hash code */ public function getHashCode() { return md5( $this->renderingFunction . $this->mimeType . $this->uniqueName . parent::getHashCode() . __CLASS__ ); } }