<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien.potencier@symfony-project.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Console\Output;

/**
 * OutputInterface is the interface implemented by all Output classes.
 *
 * @author Fabien Potencier <fabien.potencier@symfony-project.com>
 */
interface OutputInterface
{
    /**
     * Writes a message to the output.
     *
     * @param string|array $messages The message as an array of lines of a single string
     * @param Boolean      $newline  Whether to add a newline or not
     * @param integer      $type     The type of output
     *
     * @throws \InvalidArgumentException When unknown output type is given
     */
    function write($messages, $newline = false, $type = 0);

    /**
     * Writes a message to the output and adds a newline at the end.
     *
     * @param string|array $messages The message as an array of lines of a single string
     * @param integer      $type     The type of output
     */
    function writeln($messages, $type = 0);

    /**
     * Sets the verbosity of the output.
     *
     * @param integer $level The level of verbosity
     */
    function setVerbosity($level);

    /**
     * Sets the decorated flag.
     *
     * @param Boolean $decorated Whether to decorated the messages or not
     */
    function setDecorated($decorated);
}