Package io.guise.framework.style

Class HSLColor

java.lang.Object

io.guise.framework.style.AbstractModeledColor<HSLColor.Component>

io.guise.framework.style.HSLColor

All Implemented Interfaces:

Color, ModeledColor<HSLColor.Component>

public class HSLColor
extends AbstractModeledColor<HSLColor.Component>

Encapsulates a color value of the HSL color space.

Author:

Garret Wilson

See Also:

• HSL color space
• HSLColor Class
• EasyRGB

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	HSLColor.Component	A color component of HSL.

Constructor Summary

Constructors

Constructor	Description
HSLColor(double hue, double saturation, double lightness)	Creates an HSL color with the specified hue, saturation, and lightness component values in the range (0.0-1.0).
HSLColor(int hue, double saturation, double lightness)	Creates an HSL color with the specified hue in the range (0-359), and saturation, and lightness component values in the range (0.0-1.0).

Method Summary

Modifier and Type	Method	Description
HSLColor	asHSL()
RGBColor	asRGB()
double	getHue()
double	getHueDegrees()	Determines the value of the hue in degrees in the range (0.0-360.0].
double	getLightness()
double	getSaturation()
static HSLColor	valueOf(CharSequence charSequence)	Creates an HSL color from a string representation.

Methods inherited from class io.guise.framework.style.AbstractModeledColor

checkComponentValue, equals, getAbsoluteComponent, getComponent, getValues, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

HSLColor

public HSLColor(int hue,
 double saturation,
 double lightness)

Creates an HSL color with the specified hue in the range (0-359), and saturation, and lightness component values in the range (0.0-1.0).

Parameters:

hue - The hue component as an integer value in the range (0-359).

saturation - The saturation component in the range (0.0-1.0).

lightness - The lightness component in the range (0.0-1.0).

Throws:

IllegalArgumentException - if the hue is outside the range (0-359), and/or if one of the other values is outside the range (0.0-1.0).

HSLColor

public HSLColor(double hue,
 double saturation,
 double lightness)

Creates an HSL color with the specified hue, saturation, and lightness component values in the range (0.0-1.0).

Parameters:

hue - The hue component.

saturation - The saturation component.

lightness - The lightness component.

Throws:

IllegalArgumentException - if one of the values is outside the range (0.0-1.0).

Method Details

getHue

public double getHue()

Returns:

The hue component value.

getHueDegrees

public double getHueDegrees()

Determines the value of the hue in degrees in the range (0.0-360.0]. For example, retrieving a hue with value 0.5 would produce 180.

Returns:

The absolute value of the hue in degrees.

getSaturation

public double getSaturation()

Returns:

The saturation component value.

getLightness

public double getLightness()

Returns:

The lightness component value.

asHSL

public HSLColor asHSL()

Returns:

The color in the HSL color space.

asRGB

public RGBColor asRGB()

Returns:

The color in the RGB color space.

valueOf

public static HSLColor valueOf(CharSequence charSequence)

Creates an HSL color from a string representation. This representation can be in one of the following forms:

• hsl(hue,saturation,lightness), with decimal representation with a depth of eight bits (0-255).
• hsl(hue%,saturation%,lightness%), with decimal component values multiplied by 100 (0.0-100.0%).

Parameters:

charSequence - The character sequence representation of an HSL color.

Returns:

An RGB color object representing the color represented by the given string.

Throws:

NullPointerException - if the given string is null.

IllegalArgumentException - if a color cannot be determined from the given string.