Package org.apache.xmlgraphics.java2d.color

Class ColorUtil

  • public final class ColorUtil
extends Object
    Generic Color helper class.

    This class supports parsing string values into color values and creating color values for strings. It provides a list of standard color names.

    • Method Detail

      • lightenColor

        public static Color lightenColor​(Color col,
                                 float factor)
        Lightens up a color for groove, ridge, inset and outset border effects.
        Parameters:
        col - the color to lighten up
        factor - factor by which to lighten up (negative values darken the color)
        Returns:
        the modified color

      • isGray

        public static boolean isGray​(Color col)
        Indicates whether the color is a gray value.
        Parameters:
        col - the color
        Returns:
        true if it is a gray value

      • toCMYKGrayColor

        public static Color toCMYKGrayColor​(float black)
        Creates an uncalibrated CMYK color with the given gray value.
        Parameters:
        black - the gray component (0 - 1)
        Returns:
        the CMYK color

      • toSRGBColor

        public static Color toSRGBColor​(Color col)
        Converts an arbitrary Color to a plain sRGB color doing the conversion at the best possible conversion quality.
        Parameters:
        col - the original color
        Returns:
        the sRGB equivalent

      • isSameColor

        public static boolean isSameColor​(Color col1,
                                  Color col2)
        Checks if two colors are the same color. This check is much more restrictive than Color.equals(Object) in that it doesn't only check if both colors result in the same sRGB value. For example, if two colors not of the same exact class are compared, they are treated as not the same.

        Note: At the moment, this method only supports Color and ColorWithAlternatives only. Other subclasses of Color are checked only using the Color.equals(Object) method.

        Parameters:
        col1 - the first color
        col2 - the second color
        Returns:
        true if both colors are the same color