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<?php
/**
* Copyright 2009-2017 Horde LLC (http://www.horde.org/)
*
* See the enclosed file LICENSE for license information (LGPL). If you
* did not receive this file, see http://www.horde.org/licenses/lgpl21.
*
* @author Michael J. Rubinsky <mrubinsk@horde.org>
* @category Horde
* @license http://www.horde.org/licenses/lgpl21 LGPL-2.1
* @package Image
*/
/**
* Simple composite effect for composing multiple images. This effect assumes
* that all images being passed in are already the desired size.
*
* @author Michael J. Rubinsky <mrubinsk@horde.org>
* @category Horde
* @copyright 2009-2017 Horde LLC
* @license http://www.horde.org/licenses/lgpl21 LGPL-2.1
* @package Image
*/
class Horde_Image_Effect_Imagick_Composite extends Horde_Image_Effect
{
/**
* Valid parameters:
* - images: (array) An array of Horde_Image objects to overlay.
* - x and y: (integer) Coordinates for the overlay placement.
*
* @var array
*/
protected $_params = array();
/**
* Applies the effect.
*/
public function apply()
{
try {
foreach ($this->_params['images'] as $image) {
$topimg = new Imagick();
$topimg->clear();
$topimg->readImageBlob($image->raw());
/* Calculate center for composite (gravity center) */
$geometry = $this->_image->imagick->getImageGeometry();
$x = $geometry['width'] / 2;
$y = $geometry['height'] / 2;
if (isset($this->_params['x']) && isset($this->_params['y'])) {
$x = $this->_params['x'];
$y = $this->_params['y'];
}
$this->_image->_imagick->compositeImage(
$topimg,
Imagick::COMPOSITE_OVER,
$x, $y
);
}
} catch (ImagickException $e) {
throw new Horde_Image_Exception($e);
}
}
}
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