Namespaces

Classes

1: <?php
2: /**
3: ##DOC-SIGNATURE##
4:
5: This file is part of WideImage.
6:
7: WideImage is free software; you can redistribute it and/or modify
8: it under the terms of the GNU Lesser General Public License as published by
9: the Free Software Foundation; either version 2.1 of the License, or
10: (at your option) any later version.
11:
12: WideImage is distributed in the hope that it will be useful,
13: but WITHOUT ANY WARRANTY; without even the implied warranty of
14: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15: GNU Lesser General Public License for more details.
16:
17: You should have received a copy of the GNU Lesser General Public License
18: along with WideImage; if not, write to the Free Software
19: Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20:
21: * @package Internal/Operations
22: **/
23:
24: namespace WideImage\Operation;
25:
26: use WideImage\Exception\GDFunctionResultException;
27:
28: /**
29: * ApplyFilter operation class
30: *
31: * @package Internal/Operations
32: */
33: class ApplyFilter
34: {
35: /**
36: * A list of filters that only accept one arguments for imagefilter()
37: *
38: * @var array
39: */
40: protected static $one_arg_filters = array(IMG_FILTER_SMOOTH, IMG_FILTER_CONTRAST, IMG_FILTER_BRIGHTNESS);
41:
42: /**
43: * Executes imagefilter
44: *
45: * @param \WideImage\Image $image
46: * @param int $filter
47: * @param numeric $arg1
48: * @param numeric $arg2
49: * @param numeric $arg3
50: * @return \WideImage\TrueColorImage
51: */
52: public function execute($image, $filter, $arg1 = null, $arg2 = null, $arg3 = null, $arg4 = null)
53: {
54: $new = $image->asTrueColor();
55:
56: if (in_array($filter, static::$one_arg_filters)) {
57: $res = imagefilter($new->getHandle(), $filter, $arg1);
58: } elseif (defined('IMG_FILTER_PIXELATE') && $filter == IMG_FILTER_PIXELATE) {
59: $res = imagefilter($new->getHandle(), $filter, $arg1, $arg2);
60: } elseif ($filter == IMG_FILTER_COLORIZE) {
61: $res = imagefilter($new->getHandle(), $filter, $arg1, $arg2, $arg3, $arg4);
62: } else {
63: $res = imagefilter($new->getHandle(), $filter);
64: }
65:
66: if (!$res) {
67: throw new GDFunctionResultException("imagefilter() returned false");
68: }
69:
70: return $new;
71: }
72: }
73:
API documentation generated by ApiGen v7.0.0-alpha.6