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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2017, Roeland Jago Douma <roeland@famdouma.nl>
*
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Richard Steinmetz <richard@steinmetz.cloud>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\PreviewGenerator;
use OCP\IConfig;
class SizeHelper {
/**
* @param IConfig $config
* @return int[][]
*/
public static function calculateSizes(IConfig $config): array {
/*
* First calculate the systems max sizes
*/
$sizes = [
'square' => [],
'height' => [],
'width' => [],
];
$maxW = (int)$config->getSystemValue('preview_max_x', 4096);
$maxH = (int)$config->getSystemValue('preview_max_y', 4096);
$s = 32;
while ($s <= $maxW || $s <= $maxH) {
$sizes['square'][] = $s;
$s *= 2;
}
$w = 32;
while ($w <= $maxW) {
$sizes['width'][] = $w;
$w *= 2;
}
$h = 32;
while ($h <= $maxH) {
$sizes['height'][] = $h;
$h *= 2;
}
/*
* Now calculate the user provided max sizes
* Note that only powers of 2 matter but if users supply different
* stuff it is their own fault and we just ignore it
*/
$getCustomSizes = function (IConfig $config, $key) {
$TXT = $config->getAppValue('previewgenerator', $key, '');
$values = [];
if ($TXT !== '') {
foreach (explode(' ', $TXT) as $value) {
if (ctype_digit($value)) {
$values[] = (int)$value;
}
}
}
return $values;
};
$squares = $getCustomSizes($config, 'squareSizes');
$widths = $getCustomSizes($config, 'widthSizes');
$heights = $getCustomSizes($config, 'heightSizes');
if ($squares !== []) {
$sizes['square'] = array_intersect($sizes['square'], $squares);
}
if ($widths !== []) {
$sizes['width'] = array_intersect($sizes['width'], $widths);
}
if ($heights !== []) {
$sizes['height'] = array_intersect($sizes['height'], $heights);
}
return $sizes;
}
}
|
