core-bundle/src/Resources/contao/library/Contao/GdImage.php
public static function fromFile(File $file)
	{
		$extension = strtolower($file->extension);
		$function = null;

		if ($extension === 'jpg')
		{
			$extension = 'jpeg';
		}

		if (\in_array($extension, array('gif', 'jpeg', 'png')))
		{
			$function = 'imagecreatefrom' . $extension;
		}

		if ($function === null || !\is_callable($function))
		{
			throw new \InvalidArgumentException('Image type "' . $file->extension . '" cannot be processed by GD');
		}

		$image = $function(System::getContainer()->getParameter('kernel.project_dir') . '/' . $file->path);

		if ($image === false)
		{
			throw new \RuntimeException('Image "' . $file->path . '" failed to be processed by GD');
		}

		return new static($image);
	}
public static function fromFile(File $file)
	{
		$extension = strtolower($file->extension);
		$function = null;

		if ($extension === 'jpg')
		{
			$extension = 'jpeg';
		}

		if (\in_array($extension, array('gif', 'jpeg', 'png')))
		{
			$function = 'imagecreatefrom' . $extension;
		}

		if ($function === null || !\is_callable($function))
		{
			throw new \InvalidArgumentException('Image type "' . $file->extension . '" cannot be processed by GD');
		}

		$image = $function(System::getContainer()->getParameter('kernel.project_dir') . '/' . $file->path);

		if ($image === false)
		{
			throw new \RuntimeException('Image "' . $file->path . '" failed to be processed by GD');
		}

		return new static($image);
	}
public static function fromFile ( File $ file ) { $ extension = strtolower ( $ file -> extension ) ; $ function = null ; if ( $ extension === 'jpg' ) { $ extension = 'jpeg' ; } if ( \ in_array ( $ extension , array ( 'gif' , 'jpeg' , 'png' ) ) ) { $ function = 'imagecreatefrom' . $ extension ; } if ( $ function === null || ! \ is_callable ( $ function ) ) { throw new \ InvalidArgumentException ( 'Image type "' . $ file -> extension . '" cannot be processed by GD' ) ; } $ image = $ function ( System :: getContainer ( ) -> getParameter ( 'kernel.project_dir' ) . '/' . $ file -> path ) ; if ( $ image === false ) { throw new \ RuntimeException ( 'Image "' . $ file -> path . '" failed to be processed by GD' ) ; } return new static ( $ image ) ; }
Get the GD image object from an image file

@param File $file The file object

@return static The GD image object

@throws \InvalidArgumentException If the image type cannot be processed
@throws \RuntimeException         If the image failed to be processed
Get the GD image object from an image file