com.atlassian.confluence.util
Class ColourUtils

java.lang.Object
  com.atlassian.confluence.util.ColourUtils

public class ColourUtils
extends Object

Color manipulation utilities

Since:

5.0

Field Summary

static Double

EPSILON

Constructor Summary

ColourUtils()

Method Summary

static String	colorToHex(Color color) Returns hexadecimal value for a color.
static Color	darken(Color color, double amount) Returns a color darker than the given color
static String	darken(String hexColor, double amount) Returns a color darker than the given color
static Color	desaturate(Color color, double amount) Returns a color less saturate than the given color
static String	desaturate(String hexColor, double amount) Returns a color less saturate than the given color
static Color	hexToColor(String hexColor) Given a color hexadecimal value returns a Color object.
static int[]	hslToRgb(float[] hsl) Returns the color value in the RGB space
static Color	lighten(Color color, double amount) Returns a color lighter than the given color
static String	lighten(String hexColor, double amount) Returns a color lighter than the given color
static Color	saturate(Color color, double amount) Returns a color more saturated than the given color
static String	saturate(String hexColor, double amount) Returns a color more saturated than the given color
static float[]	toHSL(Color color) Returns the color value in the HSL space

Methods inherited from class java.lang.Object

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

Field Detail

EPSILON

public static final Double EPSILON

Constructor Detail

ColourUtils

public ColourUtils()

Method Detail

colorToHex

public static String colorToHex(Color color)

Returns hexadecimal value for a color.

Parameters:

color - color object

Returns:

color hexadecimal value

hexToColor

public static Color hexToColor(String hexColor)

Given a color hexadecimal value returns a Color object.

Parameters:

hexColor - color hexadecimal value

Returns:

Color object

darken

public static String darken(String hexColor,
                            double amount)

Returns a color darker than the given color

Parameters:

hexColor - color hexadecimal value

amount - value between 0 and 100.

Returns:

darker color

lighten

public static String lighten(String hexColor,
                             double amount)

Returns a color lighter than the given color

Parameters:

hexColor - color hexadecimal value

amount - value between 0 and 100.

Returns:

lighter color

saturate

public static String saturate(String hexColor,
                              double amount)

Returns a color more saturated than the given color

Parameters:

hexColor - color hexadecimal value

amount - value between 0 and 100.

Returns:

saturated color

desaturate

public static String desaturate(String hexColor,
                                double amount)

Returns a color less saturate than the given color

Parameters:

hexColor - color hexadecimal value

amount - value between 0 and 100.

Returns:

desaturated color

darken

public static Color darken(Color color,
                           double amount)

Returns a color darker than the given color

Parameters:

color - color onject

amount - value between 0 and 100.

Returns:

darker color

lighten

public static Color lighten(Color color,
                            double amount)

Returns a color lighter than the given color

Parameters:

color - color object

amount - value between 0 and 100.

Returns:

lighter color

desaturate

public static Color desaturate(Color color,
                               double amount)

Returns a color less saturate than the given color

Parameters:

color - color object

amount - value between 0 and 100.

Returns:

desaturated color

saturate

public static Color saturate(Color color,
                             double amount)

Returns a color more saturated than the given color

Parameters:

color - color object

amount - value between 0 and 100.

Returns:

saturated color

toHSL

public static float[] toHSL(Color color)

Returns the color value in the HSL space

Parameters:

color - color object

Returns:

{ hue, saturation, lightness, alpha }

hslToRgb

public static int[] hslToRgb(float[] hsl)

Returns the color value in the RGB space

Parameters:

hsl - color in hsl space

Returns:

rgb values [0, 255]