<?php

namespace PhpOffice\PhpSpreadsheet\Worksheet;


> use GdImage;
class MemoryDrawing extends BaseDrawing
> use PhpOffice\PhpSpreadsheet\Exception;
{
> use PhpOffice\PhpSpreadsheet\Shared\File;
    // 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';


>     const SUPPORTED_MIME_TYPES = [
    /**
>         self::MIMETYPE_GIF,
     * Image resource.
>         self::MIMETYPE_JPEG,
     *
>         self::MIMETYPE_PNG,
     * @var resource
>     ];
     */
> 



<      * @var resource



>      * @var null|GdImage|resource



    /**
     * Rendering function.
     *
     * @var string
     */
    private $renderingFunction;

    /**
     * Mime type.
     *
     * @var string
     */
    private $mimeType;

    /**
     * Unique name.
     *
     * @var string
     */
    private $uniqueName;


>     /** @var null|resource */
    /**
>     private $alwaysNull;
     * 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));
>         $this->alwaysNull = null;



        // Initialize parent
        parent::__construct();
    }


>     public function __destruct()
    /**
>     {
     * Get image resource.
>         if ($this->imageResource) {
     *
>             $rslt = @imagedestroy($this->imageResource);
     * @return resource
>             // "Fix" for Scrutinizer
     */
>             $this->imageResource = $rslt ? null : $this->alwaysNull;
    public function getImageResource()
>         }
    {
>     }
        return $this->imageResource;
> 
    }
>     public function __clone()

>     {
    /**
>         parent::__clone();
     * Set image resource.
>         $this->cloneResource();
     *
>     }
     * @param resource $value
> 
     *
>     private function cloneResource(): void
     * @return MemoryDrawing
>     {
     */
>         if (!$this->imageResource) {
    public function setImageResource($value)
>             return;
    {
>         }
        $this->imageResource = $value;
> 

>         $width = (int) imagesx($this->imageResource);
        if ($this->imageResource !== null) {
>         $height = (int) imagesy($this->imageResource);
            // Get width/height
> 
            $this->width = imagesx($this->imageResource);
>         if (imageistruecolor($this->imageResource)) {
            $this->height = imagesy($this->imageResource);
>             $clone = imagecreatetruecolor($width, $height);
        }
>             if (!$clone) {

>                 throw new Exception('Could not clone image resource');
        return $this;
>             }
    }
> 

>             imagealphablending($clone, false);
    /**
>             imagesavealpha($clone, true);
     * Get rendering function.
>         } else {
     *
>             $clone = imagecreate($width, $height);
     * @return string
>             if (!$clone) {
     */
>                 throw new Exception('Could not clone image resource');
    public function getRenderingFunction()
>             }
    {
> 
        return $this->renderingFunction;
>             // If the image has transparency...
    }
>             $transparent = imagecolortransparent($this->imageResource);

>             if ($transparent >= 0) {
    /**
>                 $rgb = imagecolorsforindex($this->imageResource, $transparent);
     * Set rendering function.
>                 if (empty($rgb)) {
     *
>                     throw new Exception('Could not get image colors');
     * @param string $value see self::RENDERING_*
>                 }
     *
> 
     * @return MemoryDrawing
>                 imagesavealpha($clone, true);
     */
>                 $color = imagecolorallocatealpha($clone, $rgb['red'], $rgb['green'], $rgb['blue'], $rgb['alpha']);
    public function setRenderingFunction($value)
>                 if ($color === false) {
    {
>                     throw new Exception('Could not get image alpha color');
        $this->renderingFunction = $value;
>                 }

> 
        return $this;
>                 imagefill($clone, 0, 0, $color);
    }
>             }

>         }
    /**
> 
     * Get mime type.
>         //Create the Clone!!
     *
>         imagecopy($clone, $this->imageResource, 0, 0, 0, 0, $width, $height);
     * @return string
> 
     */
>         $this->imageResource = $clone;
    public function getMimeType()
>     }
    {
> 
        return $this->mimeType;
>     /**
    }
>      * @param resource $imageStream Stream data to be converted to a Memory Drawing

>      *
    /**
>      * @throws Exception
     * Set mime type.
>      */
     *
>     public static function fromStream($imageStream): self
     * @param string $value see self::MIMETYPE_*
>     {
     *
>         $streamValue = stream_get_contents($imageStream);
     * @return MemoryDrawing
>         if ($streamValue === false) {
     */
>             throw new Exception('Unable to read data from stream');
    public function setMimeType($value)
>         }
    {
> 
        $this->mimeType = $value;
>         return self::fromString($streamValue);

>     }
        return $this;
> 
    }
>     /**

>      * @param string $imageString String data to be converted to a Memory Drawing
    /**
>      *
     * Get indexed filename (using image index).
>      * @throws Exception
     *
>      */
     * @return string
>     public static function fromString(string $imageString): self
     */
>     {
    public function getIndexedFilename()
>         $gdImage = @imagecreatefromstring($imageString);
    {
>         if ($gdImage === false) {
        $extension = strtolower($this->getMimeType());
>             throw new Exception('Value cannot be converted to an image');
        $extension = explode('/', $extension);
>         }
        $extension = $extension[1];
> 

>         $mimeType = self::identifyMimeType($imageString);
        return $this->uniqueName . $this->getImageIndex() . '.' . $extension;
>         $renderingFunction = self::identifyRenderingFunction($mimeType);
    }
> 

>         $drawing = new self();
    /**
>         $drawing->setImageResource($gdImage);
     * Get hash code.
>         $drawing->setRenderingFunction($renderingFunction);
     *
>         $drawing->setMimeType($mimeType);
     * @return string Hash code
> 
     */
>         return $drawing;
    public function getHashCode()
>     }
    {
> 
        return md5(
>     private static function identifyRenderingFunction(string $mimeType): string
            $this->renderingFunction .
>     {
            $this->mimeType .
>         switch ($mimeType) {
            $this->uniqueName .
>             case self::MIMETYPE_PNG:
            parent::getHashCode() .
>                 return self::RENDERING_PNG;
            __CLASS__
>             case self::MIMETYPE_JPEG:
        );
>                 return self::RENDERING_JPEG;
    }
>             case self::MIMETYPE_GIF:
}
>                 return self::RENDERING_GIF;
>         }
> 
>         return self::RENDERING_DEFAULT;
>     }
> 
>     /**
>      * @throws Exception
>      */
>     private static function identifyMimeType(string $imageString): string
>     {
>         $temporaryFileName = File::temporaryFilename();
>         file_put_contents($temporaryFileName, $imageString);
> 
>         $mimeType = self::identifyMimeTypeUsingExif($temporaryFileName);
>         if ($mimeType !== null) {
>             unlink($temporaryFileName);
> 
>             return $mimeType;
>         }
> 
>         $mimeType = self::identifyMimeTypeUsingGd($temporaryFileName);
>         if ($mimeType !== null) {
>             unlink($temporaryFileName);
> 
>             return $mimeType;
>         }
> 
>         unlink($temporaryFileName);
> 
>         return self::MIMETYPE_DEFAULT;
>     }
> 
>     private static function identifyMimeTypeUsingExif(string $temporaryFileName): ?string
>     {
>         if (function_exists('exif_imagetype')) {
>             $imageType = @exif_imagetype($temporaryFileName);
>             $mimeType = ($imageType) ? image_type_to_mime_type($imageType) : null;
> 
>             return self::supportedMimeTypes($mimeType);
>         }
> 
>         return null;
>     }
> 
>     private static function identifyMimeTypeUsingGd(string $temporaryFileName): ?string
>     {
>         if (function_exists('getimagesize')) {
>             $imageSize = @getimagesize($temporaryFileName);
>             if (is_array($imageSize)) {
>                 $mimeType = $imageSize['mime'] ?? null;
> 
>                 return self::supportedMimeTypes($mimeType);
>             }
>         }
> 
>         return null;
>     }
> 
>     private static function supportedMimeTypes(?string $mimeType = null): ?string
>     {
>         if (in_array($mimeType, self::SUPPORTED_MIME_TYPES, true)) {
>             return $mimeType;
>         }
> 
>         return null;
>     }
> 



<      * @return resource



>      * @return null|GdImage|resource



<      * @param resource $value



>      * @param GdImage|resource $value



<      * @return MemoryDrawing



>      * @return $this



<             $this->width = imagesx($this->imageResource);
<             $this->height = imagesy($this->imageResource);



>             $this->width = (int) imagesx($this->imageResource);
>             $this->height = (int) imagesy($this->imageResource);



<      * @return MemoryDrawing



>      * @return $this



<      * @return MemoryDrawing



>      * @return $this



<      *
<      * @return string



<     public function getIndexedFilename()



>     public function getIndexedFilename(): string