Paperyard\Controllers\Misc\Thumbnail Class Reference

Public Member Functions
	__construct (LoggerInterface $logger)
	__invoke (Request $request, Response $response, $args)

Protected Attributes
	$logger

Detailed Description

Definition at line 11 of file Thumbnail.php.

Constructor & Destructor Documentation

Paperyard\Controllers\Misc\Thumbnail::__construct

(

LoggerInterface

$logger

)

Definition at line 16 of file Thumbnail.php.

    {
        $this->logger = $logger;
    }

Member Function Documentation

Paperyard\Controllers\Misc\Thumbnail::__invoke	(	Request	$request,
		Response	$response,
			$args
	)

Definition at line 21 of file Thumbnail.php.

    {
        $path = base64_decode($request->getAttribute('path'));
        $page = (int)$request->getAttribute('page');
        $resolution = (int)$request->getAttribute('resolution');

        // set default resolution
        if ($resolution == 0) {
            $resolution = 72;
        }

        // build
        $document_hash = (new Document($path))->hash;
        $thumbnail_path = 'static/img/cache/' . $document_hash . '[' . $page . '][' . $resolution . '].jpg';

        // check if image is in cache
        if (file_exists($thumbnail_path)) {
            $cached_thumbnail_response = $response->withHeader('Content-type', 'image/jpeg');
            readfile($thumbnail_path);
            return $cached_thumbnail_response;
        }

        // load page and cache to disk
        $im = new Imagick();
        $im->setResolution($resolution, $resolution);
        $im->readImage($path . '[' . $page . ']');
        $im->setImageFormat('jpg');
        $im->writeImage($thumbnail_path);

        // add content type and output image data
        $thumbnail_response = $response->withHeader('Content-type', 'image/jpeg');
        echo $im;

        // free memory and return response
        $im->clear();
        $im->destroy();
        return $thumbnail_response;
    }

Member Data Documentation

Paperyard\Controllers\Misc\Thumbnail::$logger

protected

Definition at line 14 of file Thumbnail.php.

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The documentation for this class was generated from the following file:

• paperyard/paperyard/frontend/controllers/misc/Thumbnail.php