Package com.moneydance.awt

Class HSLColorUtil

java.lang.Object
com.moneydance.awt.HSLColorUtil
public class HSLColorUtil
extends java.lang.Object
Utilities for using Hue, Saturation, Luminance (HSL) colors and converting to/from standard Color objects.
Author:
Kevin Menningen

  • Field Summary

    Fields 
    Modifier and Type Field Description
    static int HUE_INDEX
    A convenience repeat of the index for the hue value in hue, saturation and luminance array return values.
    static int LUMINANCE_INDEX
    A convenience repeat of the index for the luminance value in hue, saturation and luminance array return values.
    static int SATURATION_INDEX
    A convenience repeat of the index for the saturation value in hue, saturation and luminance array return values.

  • Method Summary

    Modifier and Type Method Description
    static java.awt.Color convertHSLtoRGB​(float hue, float saturation, float luminance)
    Convert a hue, saturation and luminance color value to the standard AWT Color object.
    static float[] convertRGBtoHSL​(java.awt.Color inColor)
    Convert a standard AWT color to hue, saturation and luminance.
    static java.awt.Color getLighterColor​(float[] hslColor, float amount)
    Make a dark color lighter (more luminance) by a specified amount.

    Methods inherited from class java.lang.Object

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

  • Field Details

    • HUE_INDEX

      public static final int HUE_INDEX
      A convenience repeat of the index for the hue value in hue, saturation and luminance array return values.
      See Also:
      Constant Field Values

    • SATURATION_INDEX

      public static final int SATURATION_INDEX
      A convenience repeat of the index for the saturation value in hue, saturation and luminance array return values.
      See Also:
      Constant Field Values

    • LUMINANCE_INDEX

      public static final int LUMINANCE_INDEX
      A convenience repeat of the index for the luminance value in hue, saturation and luminance array return values.
      See Also:
      Constant Field Values

  • Method Details

    • convertRGBtoHSL

      public static float[] convertRGBtoHSL​(java.awt.Color inColor)
      Convert a standard AWT color to hue, saturation and luminance. Hue varies from 0 to 360, saturation varies from 0 to 1, and luminance varies from 0 to 1.
      Parameters:
      inColor - Color to convert
      Returns:
      An array of 3 floats containing hue, saturation and luminance. The array indices can be obtained from HSLColorSpace.HUE_INDEX, HSLColorSpace.LUMINANCE_INDEX and HSLColorSpace.SATURATION_INDEX.

    • convertHSLtoRGB

      public static java.awt.Color convertHSLtoRGB​(float hue, float saturation, float luminance)
      Convert a hue, saturation and luminance color value to the standard AWT Color object.
      Parameters:
      hue - The hue of the color from 0.0 to 360.0
      saturation - The saturation of the color from 0.0 to 1.0
      luminance - The luminance (brightness) of the color from 0.0 to 1.0
      Returns:
      A Color object closely matching the hue, saturation and luminance parameters.

    • getLighterColor

      public static java.awt.Color getLighterColor​(float[] hslColor, float amount)
      Make a dark color lighter (more luminance) by a specified amount.
      Parameters:
      hslColor - The color to begin with.
      amount - The amount to adjust luminance (positive for lighter, negative for darker).
      Returns:
      The adjusted color.