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<?php
/**
* Copyright 2007-2017 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
*/
/**
* Effect for creating a polaroid looking image.
*
* @author Michael J. Rubinsky <mrubinsk@horde.org>
* @category Horde
* @copyright 2007-2017 Horde LLC
* @license http://www.horde.org/licenses/lgpl21 LGPL-2.1
* @package Image
*/
class Horde_Image_Effect_Imagick_PolaroidImage extends Horde_Image_Effect
{
/**
* Valid parameters for the polaroid effect:
* - background: (string) The color of the image background.
* - angle: (integer) Angle to rotate the image.
* - shadowcolor: (string) The color of the image shadow.
*
* @var array
*/
protected $_params = array(
'background' => 'none',
'angle' => 0,
'shadowcolor' => 'black'
);
/**
* Applies the effect.
*/
public function apply()
{
if (!method_exists($this->_image->imagick, 'polaroidImage') ||
!method_exists($this->_image->imagick, 'trimImage')) {
throw new Horde_Image_Exception('Your version of Imagick is not compiled against a recent enough ImageMagick library to use the PolaroidImage effect.');
}
try {
// This determines the color of the underlying shadow.
$this->_image->imagick->setImageBackgroundColor(
new ImagickPixel($this->_params['shadowcolor'])
);
$this->_image->imagick->polaroidImage(
new ImagickDraw(), $this->_params['angle']
);
// We need to create a new image to composite the polaroid over.
// (yes, even if it's a transparent background evidently)
$size = $this->_image->getDimensions();
$imk = new Imagick();
$imk->newImage(
$size['width'], $size['height'], $this->_params['background']
);
$imk->setImageFormat($this->_image->getType());
$result = $imk->compositeImage(
$this->_image->imagick, Imagick::COMPOSITE_OVER, 0, 0
);
$this->_image->imagick->clear();
$this->_image->imagick->addImage($imk);
} catch (ImagickPixelException $e) {
throw new Horde_Image_Exception($e);
} catch (ImagickDrawException $e) {
throw new Horde_Image_Exception($e);
} catch (ImagickException $e) {
throw new Horde_Image_Exception($e);
}
$imk->destroy();
}
}
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