HslaColor Class Reference

Public Member Functions
	__construct (int $h, int $s, int $l, float $a)

Static Public Member Functions
static	convertHslaToRgba (HslaColor $hslaColor)

Public Attributes
	$H
	$S
	$L
	$A = 0.0

Static Private Member Functions
static	checkHue (int $value)
static	checkSatLight (int $value)
static	checkAlpha (float $value)
static	hueToRgb (float $p, float $q, float $t)

Detailed Description

Class for representing HSLA color (Hue, Saturation, Lightness, Alpha)

Constructor & Destructor Documentation

__construct()

HslaColor::__construct	(	int	$h,
		int	$s,
		int	$l,
		float	$a
	)

Constructor for HslaColor

Parameters

$h	Hue [0, 360]
$s	Saturation [0, 100]
$l	Lightness [0, 100]
$a	Alpha (opacity) [0.0f, 1.0f]

Member Function Documentation

checkAlpha()

static HslaColor::checkAlpha ( float  $value )

staticprivate

checkHue()

static HslaColor::checkHue ( int  $value )

staticprivate

checkSatLight()

static HslaColor::checkSatLight ( int  $value )

staticprivate

convertHslaToRgba()

static HslaColor::convertHslaToRgba ( HslaColor  $hslaColor )

static

Uses https://en.wikipedia.org/wiki/HSL_and_HSV#HSL_to_RGB

Parameters

hslaColor

HSLA color to convert

Returns

string with RGBA values

hueToRgb()

static HslaColor::hueToRgb ( float  $p, float  $q, float  $t  )

staticprivate

Member Data Documentation

$A

HslaColor::$A = 0.0

Alpha (opacity) [0.0f, 1.0f]

$H

HslaColor::$H

Hue [0, 360]

$L

HslaColor::$L

Lightness [0, 100]

$S

HslaColor::$S

Saturation [0, 100]