|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Box\Spout\Common\Entity\Style; |
|
4
|
|
|
|
|
5
|
|
|
use Box\Spout\Common\Exception\InvalidColorException; |
|
6
|
|
|
|
|
7
|
|
|
/** |
|
8
|
|
|
* Class Color |
|
9
|
|
|
* This class provides constants and functions to work with colors |
|
10
|
|
|
*/ |
|
11
|
|
|
class Color |
|
12
|
|
|
{ |
|
13
|
|
|
/** Standard colors - based on Office Online */ |
|
14
|
|
|
const BLACK = '000000'; |
|
15
|
|
|
const WHITE = 'FFFFFF'; |
|
16
|
|
|
const RED = 'FF0000'; |
|
17
|
|
|
const DARK_RED = 'C00000'; |
|
18
|
|
|
const ORANGE = 'FFC000'; |
|
19
|
|
|
const YELLOW = 'FFFF00'; |
|
20
|
|
|
const LIGHT_GREEN = '92D040'; |
|
21
|
|
|
const GREEN = '00B050'; |
|
22
|
|
|
const LIGHT_BLUE = '00B0E0'; |
|
23
|
|
|
const BLUE = '0070C0'; |
|
24
|
|
|
const DARK_BLUE = '002060'; |
|
25
|
|
|
const PURPLE = '7030A0'; |
|
26
|
|
|
|
|
27
|
|
|
/** |
|
28
|
|
|
* Returns an RGB color from R, G and B values |
|
29
|
|
|
* |
|
30
|
|
|
* @param int $red Red component, 0 - 255 |
|
31
|
|
|
* @param int $green Green component, 0 - 255 |
|
32
|
|
|
* @param int $blue Blue component, 0 - 255 |
|
33
|
|
|
* @return string RGB color |
|
34
|
|
|
*/ |
|
35
|
34 |
|
public static function rgb($red, $green, $blue) |
|
36
|
|
|
{ |
|
37
|
34 |
|
self::throwIfInvalidColorComponentValue($red); |
|
38
|
29 |
|
self::throwIfInvalidColorComponentValue($green); |
|
39
|
24 |
|
self::throwIfInvalidColorComponentValue($blue); |
|
40
|
|
|
|
|
41
|
19 |
|
return strtoupper( |
|
42
|
19 |
|
self::convertColorComponentToHex($red) . |
|
43
|
19 |
|
self::convertColorComponentToHex($green) . |
|
44
|
19 |
|
self::convertColorComponentToHex($blue) |
|
45
|
|
|
); |
|
46
|
|
|
} |
|
47
|
|
|
|
|
48
|
|
|
/** |
|
49
|
|
|
* Throws an exception is the color component value is outside of bounds (0 - 255) |
|
50
|
|
|
* |
|
51
|
|
|
* @param int $colorComponent |
|
52
|
|
|
* @throws \Box\Spout\Common\Exception\InvalidColorException |
|
53
|
|
|
* @return void |
|
54
|
|
|
*/ |
|
55
|
34 |
|
protected static function throwIfInvalidColorComponentValue($colorComponent) |
|
56
|
|
|
{ |
|
57
|
34 |
|
if (!is_int($colorComponent) || $colorComponent < 0 || $colorComponent > 255) { |
|
58
|
15 |
|
throw new InvalidColorException("The RGB components must be between 0 and 255. Received: $colorComponent"); |
|
59
|
|
|
} |
|
60
|
29 |
|
} |
|
61
|
|
|
|
|
62
|
|
|
/** |
|
63
|
|
|
* Converts the color component to its corresponding hexadecimal value |
|
64
|
|
|
* |
|
65
|
|
|
* @param int $colorComponent Color component, 0 - 255 |
|
66
|
|
|
* @return string Corresponding hexadecimal value, with a leading 0 if needed. E.g "0f", "2d" |
|
67
|
|
|
*/ |
|
68
|
19 |
|
protected static function convertColorComponentToHex($colorComponent) |
|
69
|
|
|
{ |
|
70
|
19 |
|
return str_pad(dechex($colorComponent), 2, '0', STR_PAD_LEFT); |
|
71
|
|
|
} |
|
72
|
|
|
|
|
73
|
|
|
/** |
|
74
|
|
|
* Returns the ARGB color of the given RGB color, |
|
75
|
|
|
* assuming that alpha value is always 1. |
|
76
|
|
|
* |
|
77
|
|
|
* @param string $rgbColor RGB color like "FF08B2" |
|
78
|
|
|
* @return string ARGB color |
|
79
|
|
|
*/ |
|
80
|
36 |
|
public static function toARGB($rgbColor) |
|
81
|
|
|
{ |
|
82
|
36 |
|
return 'FF' . $rgbColor; |
|
83
|
|
|
} |
|
84
|
|
|
} |
|
85
|
|
|
|
box /
spout
