ImageManager.php

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<?php
 
namespace Intervention\Image;
 
use Closure;
 
class ImageManager
{
    public $config = array(
        'driver' => 'gd'
    );
 
    public function __construct(array $config = array())
    {
        $this->checkRequirements();
        $this->configure($config);
    }
 
    public function configure(array $config = array())
    {
        $this->config = array_replace($this->config, $config);
 
        return $this;
    }
 
    public function make($data)
    {
        return $this->createDriver()->init($data);
    }
 
    public function canvas($width, $height, $background = null)
    {
        return $this->createDriver()->newImage($width, $height, $background);
    }
 
    public function cache(Closure $callback, $lifetime = null, $returnObj = false)
    {
        if (class_exists('Intervention\\Image\\ImageCache')) {
            // create imagecache
            $imagecache = new ImageCache($this);
 
            // run callback
            if (is_callable($callback)) {
                $callback($imagecache);
            }
 
            return $imagecache->get($lifetime, $returnObj);
        }
 
        throw new \Intervention\Image\Exception\MissingDependencyException(
            "Please install package intervention/imagecache before running this function."
        );
    }
 
    private function createDriver()
    {
        $drivername = ucfirst($this->config['driver']);
        $driverclass = sprintf('Intervention\\Image\\%s\\Driver', $drivername);
 
        if (class_exists($driverclass)) {
            return new $driverclass;
        }
 
        throw new \Intervention\Image\Exception\NotSupportedException(
            "Driver ({$drivername}) could not be instantiated."
        );
    }
 
    private function checkRequirements()
    {
        if ( ! function_exists('finfo_buffer')) {
            throw new \Intervention\Image\Exception\MissingDependencyException(
                "PHP Fileinfo extension must be installed/enabled to use Intervention Image."
            );
        }
    }
}