|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/** |
|
4
|
|
|
* Trait implementation of Red-Green-Blue (RGB) colour format generation for generator services. |
|
5
|
|
|
*/ |
|
6
|
|
|
|
|
7
|
|
|
namespace CryptoManana\Core\Traits\Randomness; |
|
8
|
|
|
|
|
9
|
|
|
/** |
|
10
|
|
|
* Trait RgbOutputTrait - Reusable implementation of `RgbOutputInterface`. |
|
11
|
|
|
* |
|
12
|
|
|
* @see \CryptoManana\Core\Interfaces\Randomness\RgbOutputInterface The abstract specification. |
|
13
|
|
|
* |
|
14
|
|
|
* @package CryptoManana\Core\Traits\Randomness |
|
15
|
|
|
*/ |
|
16
|
|
|
trait RgbOutputTrait |
|
17
|
|
|
{ |
|
18
|
|
|
/** |
|
19
|
|
|
* Internal method for converting RGB integer colours to HEX notations. |
|
20
|
|
|
* |
|
21
|
|
|
* @param array $rgbColour An array containing three integers between 0 and 255. |
|
22
|
|
|
* |
|
23
|
|
|
* @return string The HEX representation of the RGB colour pair. |
|
24
|
|
|
*/ |
|
25
|
3 |
|
protected function calculateRgbArrayToHexString(array $rgbColour) |
|
26
|
|
|
{ |
|
27
|
3 |
|
$pairCount = count($rgbColour); |
|
28
|
|
|
|
|
29
|
3 |
|
for ($i = 0; $i < $pairCount; $i++) { |
|
30
|
3 |
|
$rgbColour[$i] = ($rgbColour[$i] <= 15) ? '0' . dechex($rgbColour[$i]) : dechex($rgbColour[$i]); |
|
31
|
|
|
} |
|
32
|
|
|
|
|
33
|
3 |
|
return ($pairCount > 0) ? '#' . implode('', $rgbColour) : ''; |
|
34
|
|
|
} |
|
35
|
|
|
|
|
36
|
|
|
/** |
|
37
|
|
|
* Generate a random Red-Green-Blue (RGB) colour combination using all colours. |
|
38
|
|
|
* |
|
39
|
|
|
* @param bool $toArray Flag to force array output instead of string (default => true). |
|
40
|
|
|
* |
|
41
|
|
|
* @return array|string Randomly generated RGB array or hexadecimal RGB color. |
|
42
|
|
|
* @throws \Exception Validation errors. |
|
43
|
|
|
*/ |
|
44
|
3 |
|
public function getRgbColourPair($toArray = true) |
|
45
|
|
|
{ |
|
46
|
3 |
|
$rgb = [$this->getInt(0, 255), $this->getInt(0, 255), $this->getInt(0, 255)]; |
|
|
|
|
|
|
47
|
|
|
|
|
48
|
3 |
|
return ($toArray) ? $rgb : $this->calculateRgbArrayToHexString($rgb); |
|
49
|
|
|
} |
|
50
|
|
|
|
|
51
|
|
|
/** |
|
52
|
|
|
* Generate a random Red-Green-Blue (RGB) colour combination using only greyscale colours. |
|
53
|
|
|
* |
|
54
|
|
|
* @param bool $toArray Flag to force array output instead of string (default => true). |
|
55
|
|
|
* |
|
56
|
|
|
* @return array|string Randomly generated RGB array or hexadecimal RGB color. |
|
57
|
|
|
* @throws \Exception Validation errors. |
|
58
|
|
|
*/ |
|
59
|
3 |
|
public function getRgbGreyscalePair($toArray = true) |
|
60
|
|
|
{ |
|
61
|
|
|
$grayChart = [ |
|
62
|
3 |
|
[255, 255, 255], // white |
|
63
|
|
|
[220, 220, 220], // gainsboro |
|
64
|
|
|
[211, 211, 211], // lightgrey |
|
65
|
|
|
[192, 192, 192], // silver |
|
66
|
|
|
[169, 169, 169], // darkgray |
|
67
|
|
|
[128, 128, 128], // gray |
|
68
|
|
|
[105, 105, 105], // dimgray |
|
69
|
|
|
[0, 0, 0] // black |
|
70
|
|
|
]; |
|
71
|
|
|
|
|
72
|
3 |
|
$rgb = $grayChart[$this->getInt(0, 255) % 8]; // A bit faster |
|
73
|
|
|
|
|
74
|
3 |
|
return ($toArray) ? $rgb : $this->calculateRgbArrayToHexString($rgb); |
|
75
|
|
|
} |
|
76
|
|
|
|
|
77
|
|
|
/** |
|
78
|
|
|
* Generate a random Red-Green-Blue (RGB) colour combination using only black&white colours. |
|
79
|
|
|
* |
|
80
|
|
|
* @param bool $toArray Flag to force array output instead of string (default => true). |
|
81
|
|
|
* |
|
82
|
|
|
* @return array|string Randomly generated RGB array or hexadecimal RGB color. |
|
83
|
|
|
* @throws \Exception Validation errors. |
|
84
|
|
|
*/ |
|
85
|
3 |
|
public function getRgbBlackOrWhitePair($toArray = true) |
|
86
|
|
|
{ |
|
87
|
3 |
|
$rgb = $this->getBool() ? [0, 0, 0] : [255, 255, 255]; |
|
|
|
|
|
|
88
|
|
|
|
|
89
|
3 |
|
return ($toArray) ? $rgb : $this->calculateRgbArrayToHexString($rgb); |
|
90
|
|
|
} |
|
91
|
|
|
} |
|
92
|
|
|
|
TonyKaravasilev /
CryptoManana
Loading history...