<?php
/**
 * @package php-font-lib
 * @link    https://github.com/PhenX/php-font-lib
 * @author  Fabien Ménager <fabien.menager@gmail.com>
 * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
 */
namespace FontLib;

use FontLib\TrueType\File;

/**
 * Font header container.
 *
 * @package php-font-lib
 */
abstract class Header extends BinaryStream
{
    /**
     * @var File
     */
    protected $font;
    protected $def = array();

    public $data;

    public function __construct(File $font)
    {
        $this->font = $font;
    }

    public function encode()
    {
        return $this->font->pack($this->def, $this->data);
    }

    public function parse()
    {
        $this->data = $this->font->unpack($this->def);
    }
}