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<?php |
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namespace HtImgModule\Imagine\Filter; |
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use Imagine\Filter\FilterInterface; |
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use Imagine\Image\ImageInterface; |
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use Imagine\Image\Point; |
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use HtImgModule\Exception; |
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class Paste implements FilterInterface |
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{ |
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/** |
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* @var \Imagine\Image\ImageInterface |
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*/ |
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protected $pasteImage; |
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/** |
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* @var string|integer |
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*/ |
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protected $x; |
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/** |
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* @var string|integer |
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*/ |
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protected $y; |
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/** |
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* @param \Imagine\Image\ImageInterface $pasteImage Image to be pasted |
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* @param string|int $x x-coordinage|position of left corner |
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* @param string|int $y y-coordinage|position of left corner |
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*/ |
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public function __construct(ImageInterface $pasteImage, $x, $y) |
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{ |
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$this->throwIfPointNotValid($x, 'x', ['left', 'right', 'center']); |
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$this->throwIfPointNotValid($y, 'y', ['top', 'bottom', 'middle']); |
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$this->pasteImage = $pasteImage; |
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$this->x = $x; |
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$this->y = $y; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function apply(ImageInterface $image) |
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{ |
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$x = is_string($this->x) |
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? $this->stringXtoInteger($this->x, $this->pasteImage, $image) |
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: $this->x |
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; |
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$y = is_string($this->y) |
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? $this->stringYtoInteger($this->y, $this->pasteImage, $image) |
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: $this->y |
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; |
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return $image->paste($this->pasteImage, new Point($x, $y)); |
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} |
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/** |
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* @param string $point |
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* @param \Imagine\Image\ImageInterface $pasteImage |
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* @param \Imagine\Image\ImageInterface $image |
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* |
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* @return integer |
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*/ |
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protected function stringXtoInteger($point, ImageInterface $pasteImage, ImageInterface $image) |
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{ |
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switch ($point) { |
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case 'right': |
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return (integer) $image->getSize()->getWidth() - $pasteImage->getSize()->getWidth(); |
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case 'center': |
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return (integer) round( ($image->getSize()->getWidth() / 2) - ($pasteImage->getSize()->getWidth() / 2) ); |
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case 'left': |
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} |
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} |
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/** |
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* @param string $point |
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* @param \Imagine\Image\ImageInterface $pasteImage |
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* @param \Imagine\Image\ImageInterface $image |
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* |
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* @return integer |
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*/ |
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protected function stringYtoInteger($point, ImageInterface $pasteImage, ImageInterface $image) |
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{ |
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switch ($point) { |
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case 'bottom': |
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return (integer) $image->getSize()->getHeight() - $pasteImage->getSize()->getHeight(); |
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case 'middle': |
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return (integer) round( ($image->getSize()->getHeight() / 2) - ($pasteImage->getSize()->getHeight() / 2) ); |
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case 'top': |
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} |
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} |
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/** |
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* @param integer|string $point |
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* @param string $pointName |
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* @param array $allowedStringValues |
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* |
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* @throws \InvalidArgumentException |
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*/ |
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protected function throwIfPointNotValid($point, $pointName, array $allowedStringValues) |
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{ |
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if (is_string($point) && in_array($point, $allowedStringValues)) { |
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return; |
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} |
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if (is_integer($point) && $point >= 0) { |
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return; |
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} |
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throw new Exception\InvalidArgumentException(sprintf( |
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'Expected "%s" one of the [%s] or integer greater than zero', |
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$pointName, |
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implode('|', $allowedStringValues) |
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)); |
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} |
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} |
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hrevert /
HtImgModule
