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<?php
/*
* This file is part of the Imagine package.
*
* (c) Bulat Shakirzyanov <mallluhuct@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Imagine\Image;
use Imagine\Exception\InvalidArgumentException;
/**
* A box implementation.
*/
final class Box implements BoxInterface
{
/**
* @var int
*/
private $width;
/**
* @var int
*/
private $height;
/**
* Constructs the Size with given width and height.
*
* @param int $width
* @param int $height
*
* @throws \Imagine\Exception\InvalidArgumentException
*/
public function __construct($width, $height)
{
if (!\is_int($width)) {
$width = (int) round($width);
}
if (!\is_int($height)) {
$height = (int) round($height);
}
$this->width = $width;
$this->height = $height;
if ($this->width < 1 || $this->height < 1) {
throw new InvalidArgumentException(sprintf('Length of either side cannot be 0 or negative, current size is %sx%s', $width, $height));
}
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\BoxInterface::getWidth()
*/
public function getWidth()
{
return $this->width;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\BoxInterface::getHeight()
*/
public function getHeight()
{
return $this->height;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\BoxInterface::scale()
*/
public function scale($ratio)
{
$width = max(1, round($ratio * $this->width));
$height = max(1, round($ratio * $this->height));
return new self($width, $height);
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\BoxInterface::increase()
*/
public function increase($size)
{
return new self((int) $size + $this->width, (int) $size + $this->height);
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\BoxInterface::contains()
*/
public function contains(BoxInterface $box, PointInterface $start = null)
{
$start = $start ? $start : new Point(0, 0);
return $start->in($this) && $this->width >= $box->getWidth() + $start->getX() && $this->height >= $box->getHeight() + $start->getY();
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\BoxInterface::square()
*/
public function square()
{
return $this->width * $this->height;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\BoxInterface::__toString()
*/
public function __toString()
{
return sprintf('%dx%d px', $this->width, $this->height);
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\BoxInterface::widen()
*/
public function widen($width)
{
return $this->scale($width / $this->width);
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\BoxInterface::heighten()
*/
public function heighten($height)
{
return $this->scale($height / $this->height);
}
}
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