1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
<?php
/**
* Copyright 2007-2016 Horde LLC (http://www.horde.org/)
*
* See the enclosed file COPYING 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
*/
/**
* Image effect for adding a drop shadow.
*
* @author Michael J. Rubinsky <mrubinsk@horde.org>
* @category Horde
* @copyright 2007-2016 Horde LLC
* @license http://www.horde.org/licenses/lgpl21 LGPL-2.1
* @package Image
*/
class Horde_Image_Effect_Imagick_DropShadow extends Horde_Image_Effect
{
/**
* Valid parameters: Most are currently ignored for the im version
* of this effect.
*
* @TODO
*
* @var array
*/
protected $_params = array(
'distance' => 5, // This is used as the x and y offset
'width' => 2,
'hexcolor' => '000000',
'angle' => 215,
'fade' => 3, // Sigma value
'padding' => 0,
'background' => 'none'
);
/**
* Applies the effect.
*/
public function apply()
{
// There is what *I* call a bug in the magickwand interface of Im that
// Imagick is compiled against. The X and Y parameters are ignored, and
// the distance of the shadow is determined *solely* by the sigma value
// which makes it pretty much impossible to have Imagick shadows look
// identical to Im shadows...
try {
$shadow = $this->_image->imagick->clone();
$shadow->setImageBackgroundColor(new ImagickPixel('black'));
$shadow->shadowImage(
80,
$this->_params['fade'],
$this->_params['distance'],
$this->_params['distance']
);
$shadow->compositeImage(
$this->_image->imagick, Imagick::COMPOSITE_OVER, 0, 0
);
if ($this->_params['padding']) {
$shadow->borderImage(
$this->_params['background'],
$this->_params['padding'],
$this->_params['padding']
);
}
$this->_image->imagick->clear();
$this->_image->imagick->addImage($shadow);
} catch (ImagickPixelException $e) {
throw new Horde_Image_Exception($e);
} catch (ImagickException $e) {
throw new Horde_Image_Exception($e);
}
$shadow->destroy();
$this->_image->clearGeometry();
}
}
|
