Package org.jdesktop.swingx.graphics

Class ColorUtilities

java.lang.Object
org.jdesktop.swingx.graphics.ColorUtilities
public class ColorUtilities extends Object

ColorUtilities contains a set of tools to perform common color operations easily.

Author:
Romain Guy romain.guy@mac.com

  • Method Summary

    Modifier and Type
    Method
    Description
    static Color
    HSLtoRGB(float h, float s, float l)
    Returns the RGB equivalent of a given HSL (Hue/Saturation/Luminance) color.
    static int[]
    HSLtoRGB(float h, float s, float l, int[] rgb)
    Returns the RGB equivalent of a given HSL (Hue/Saturation/Luminance) color.
    static float[]
    RGBtoHSL(int r, int g, int b)
    Returns the HSL (Hue/Saturation/Luminance) equivalent of a given RGB color.
    static float[]
    RGBtoHSL(int r, int g, int b, float[] hsl)
    Returns the HSL (Hue/Saturation/Luminance) equivalent of a given RGB color.
    static float[]
    RGBtoHSL(Color color)
    Returns the HSL (Hue/Saturation/Luminance) equivalent of a given RGB color.
    static float[]
    RGBtoHSL(Color color, float[] hsl)
    Returns the HSL (Hue/Saturation/Luminance) equivalent of a given RGB color.

    Methods inherited from class java.lang.Object

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

  • Method Details

    • RGBtoHSL

      public static float[] RGBtoHSL(Color color)

      Returns the HSL (Hue/Saturation/Luminance) equivalent of a given RGB color. All three HSL components are between 0.0 and 1.0.

      Parameters:
      color - the RGB color to convert
      Returns:
      a new array of 3 floats corresponding to the HSL components

    • RGBtoHSL

      public static float[] RGBtoHSL(Color color, float[] hsl)

      Returns the HSL (Hue/Saturation/Luminance) equivalent of a given RGB color. All three HSL components are between 0.0 and 1.0.

      Parameters:
      color - the RGB color to convert
      hsl - a pre-allocated array of floats; can be null
      Returns:
      hsl if non-null, a new array of 3 floats otherwise
      Throws:
      IllegalArgumentException - if hsl has a length lower than 3

    • RGBtoHSL

      public static float[] RGBtoHSL(int r, int g, int b)

      Returns the HSL (Hue/Saturation/Luminance) equivalent of a given RGB color. All three HSL components are between 0.0 and 1.0.

      Parameters:
      r - the red component, between 0 and 255
      g - the green component, between 0 and 255
      b - the blue component, between 0 and 255
      Returns:
      a new array of 3 floats corresponding to the HSL components

    • RGBtoHSL

      public static float[] RGBtoHSL(int r, int g, int b, float[] hsl)

      Returns the HSL (Hue/Saturation/Luminance) equivalent of a given RGB color. All three HSL components are floats between 0.0 and 1.0.

      Parameters:
      r - the red component, between 0 and 255
      g - the green component, between 0 and 255
      b - the blue component, between 0 and 255
      hsl - a pre-allocated array of floats; can be null
      Returns:
      hsl if non-null, a new array of 3 floats otherwise
      Throws:
      IllegalArgumentException - if hsl has a length lower than 3

    • HSLtoRGB

      public static Color HSLtoRGB(float h, float s, float l)

      Returns the RGB equivalent of a given HSL (Hue/Saturation/Luminance) color.

      Parameters:
      h - the hue component, between 0.0 and 1.0
      s - the saturation component, between 0.0 and 1.0
      l - the luminance component, between 0.0 and 1.0
      Returns:
      a new Color object equivalent to the HSL components

    • HSLtoRGB

      public static int[] HSLtoRGB(float h, float s, float l, int[] rgb)

      Returns the RGB equivalent of a given HSL (Hue/Saturation/Luminance) color. All three RGB components are integers between 0 and 255.

      Parameters:
      h - the hue component, between 0.0 and 1.0
      s - the saturation component, between 0.0 and 1.0
      l - the luminance component, between 0.0 and 1.0
      rgb - a pre-allocated array of ints; can be null
      Returns:
      rgb if non-null, a new array of 3 ints otherwise
      Throws:
      IllegalArgumentException - if rgb has a length lower than 3