1: <?php
 2: /**
 3:  * Image effect for adding a drop shadow.
 4:  *
 5:  * Copyright 2007-2012 Horde LLC (http://www.horde.org/)
 6:  *
 7:  * @author  Michael J. Rubinsky <mrubinsk@horde.org>
 8:  * @package Image
 9:  */
10: class Horde_Image_Effect_Im_DropShadow extends Horde_Image_Effect
11: {
12:     /**
13:      * Valid parameters: Most are currently ignored for the im version
14:      * of this effect.
15:      *
16:      * @TODO
17:      *
18:      * @var array
19:      */
20:     protected $_params = array('distance' => 5, // This is used as the x and y offset
21:                                'width' => 2,
22:                                'hexcolor' => '000000',
23:                                'angle' => 215,
24:                                'fade' => 3, // Sigma value
25:                                'padding' => 0,
26:                                'background' => 'none');
27: 
28:     /**
29:      * Apply the effect.
30:      *
31:      * @return mixed true
32:      */
33:     public function apply()
34:     {
35:         $size = $this->_image->getDimensions();
36:         $this->_image->addPostSrcOperation('\( +clone -background black -shadow 80x' . $this->_params['fade'] . '+' . $this->_params['distance'] . '+' . $this->_params['distance'] . ' \) +swap -background none -flatten +repage -bordercolor ' . $this->_params['background'] . ' -border ' . $this->_params['padding']);
37:         $this->_image->clearGeometry();
38: 
39:         return true;
40:     }
41: 
42: }