ConsoleKit Progress bar fix

ProgressBar.php

<?php
/*
 * This file is part of the ConsoleKit package.
 *
 * (c) 2012 Maxime Bouroumeau-Fuseau
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace ConsoleKit\Widgets;

use ConsoleKit\TextWriter,
    ConsoleKit\ConsoleException;

/**
 * Progress bar
 *
 * <code>
 * $total = 100;
 * $progress = new ProgressBar($textWriter, $total);
 * for ($i = 0; $i < $total; $i++) {
 *     $progress->incr();
 *     usleep(10000);
 * }
 * $progress->stop();
 * </code>
 */
class ProgressBar extends AbstractWidget
{
    /** @var int */
    protected $value = 0;

    /** @var int */
    protected $total = 0;

    /** @var int */
    protected $size = 0;

    /** @var bool */
    protected $showRemainingTime = true;

    /** @var int */
    protected $startTime;

    /**
     * @param TextWriter $writer
     * @param int $total
     * @param int $size
     */
    public function __construct(TextWriter $writer = null, $total = 100, $size = 50, $showRemainingTime = true)
    {
        $this->textWriter = $writer;
        $this->size = $size;
        $this->showRemainingTime = $showRemainingTime;
        $this->start($total);
    }

    /**
     * @param int $size
     * @return ProgressBar
     */
    public function setSize($size)
    {
        $this->size = $size;
        return $this;
    }

    /**
     * @return int
     */
    public function getSize()
    {
        return $this->size;
    }

    /**
     * @param bool $show
     */
    public function setShowRemainingTime($show = true)
    {
        $this->showRemainingTime = $show;
    }

    /**
     * @return bool
     */
    public function getShowRemainingTime()
    {
        return $this->showRemainingTime;
    }

    /**
     * @param number $value
     */
    public function setValue($value)
    {
        $this->value = $value;
    }

    /**
     * @return number
     */
    public function getValue()
    {
        return $this->value;
    }

    /**
     * @param int $total
     * @return ProgressBar
     */
    public function start($total = 100)
    {
        $this->value = 0;
        $this->total = $total;
        $this->startTime = time();
        return $this;
    }

    /**
     * Increments the value and calls {@see write()}
     *
     * @param int $increment
     * @return ProgressBar
     */
    public function incr($increment = 1)
    {
        $this->value += $increment;
        $this->write();
        return $this;
    }

    /**
     * Writes a new line
     *
     * @return ProgressBar
     */
    public function stop()
    {
        $this->textWriter->writeln();
        return $this;
    }

    /**
     * Generates the text to write for the current values
     *
     * @return string
     */
    public function render()
    {
        $percentage = (double) ($this->value / $this->total);

        $progress = floor($percentage * $this->size);
        $output = "\r[" . str_repeat('=', $progress);
        if ($progress < $this->size) {
            $output .= ">" . str_repeat(' ', $this->size - $progress);
        } else {
            $output .= '=';
        }
        $output .= sprintf('] %s%% %s/%s', round($percentage * 100, 0), $this->value, $this->total);

        if ($this->showRemainingTime) {
            $speed = (time() - $this->startTime) / $this->value;
            $remaining = number_format(round($speed * ($this->total - $this->value), 2), 2);
            $output .= " - $remaining sec remaining";
        }

        return $output;
    }

    /**
     * Writes the rendered progress bar to the text writer
     *
     * @return ProgressBar
     */
    public function write()
    {
        if ($this->textWriter === null) {
            throw new ConsoleException('No TextWriter object specified');
        }
        $this->textWriter->write($this->render());
        return $this;
    }

    public function __toString()
    {
        return $this->render();
    }
}