Package org.cyclos.utils

Class ColorHelper

java.lang.Object

org.cyclos.utils.ColorHelper

public class ColorHelper
extends Object

Helper class for colors

Constructor Summary

Constructors

Constructor	Description
ColorHelper()

Method Summary

Modifier and Type	Method	Description
static int[]	colorYiq(int[] rgb)	Returns a default contrast color for the given color
static int[]	colorYiq(int[] rgb, int[] darkText, int[] lightText)	Returns a default contrast color
static String	formatRGBasHex(int... rgb)	Returns the HTML hex code for the given RGB color components, in the format #RRGGBB, or null if the array is null or doesn't contains 3 elements
static int[]	fromHSVtoRGB(int[] hsv)
static int[]	fromHSVtoRGB(int h, int s, int v)	Converts a color represented by the given HSV values to RGB values.
static int[]	fromRGB(int rgb)	Returns a color from the given number, being the first byte the red value, and the other 2 bytes, green and blue
static int[]	fromRGBtoHSV(int[] rgb)
static int[]	fromRGBtoHSV(int r, int g, int b)	Converts a color represented by the given RGB values to HSV values.
static int[]	parse(String string)	Parses the RGB color from the given string
static int[]	parseRGB(String rgbString)	Returns a color from the given RGB string, in form rgb(R,G,B)
static int[]	parseRGBfromHex(String hexString)	Returns the RGB components from the given hex string, in form #RRGGBB
static int	toRGB(int[] rgb)	Returns an integer with 6 bytes, being them RRGGBB, or -1 if the given array is null or doesn't have 3 elements

Methods inherited from class java.lang.Object

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

Constructor Detail

ColorHelper

public ColorHelper()

Method Detail

colorYiq

public static int[] colorYiq(int[] rgb)

Returns a default contrast color for the given color

colorYiq

public static int[] colorYiq(int[] rgb,
                             int[] darkText,
                             int[] lightText)

Returns a default contrast color

formatRGBasHex

public static String formatRGBasHex(int... rgb)

Returns the HTML hex code for the given RGB color components, in the format #RRGGBB, or null if the array is null or doesn't contains 3 elements

fromHSVtoRGB

public static int[] fromHSVtoRGB(int h,
                                 int s,
                                 int v)

Converts a color represented by the given HSV values to RGB values. R, G and B ranges are [0, 255], H is [0, 360], S and V are [0, 100];

fromHSVtoRGB

public static int[] fromHSVtoRGB(int[] hsv)

See Also:

fromHSVtoRGB(int, int, int)

fromRGB

public static int[] fromRGB(int rgb)

Returns a color from the given number, being the first byte the red value, and the other 2 bytes, green and blue

fromRGBtoHSV

public static int[] fromRGBtoHSV(int r,
                                 int g,
                                 int b)

Converts a color represented by the given RGB values to HSV values. R, G and B ranges are [0, 255], H is [0, 360], S and V are [0, 100];

fromRGBtoHSV

public static int[] fromRGBtoHSV(int[] rgb)

See Also:

fromRGBtoHSV(int, int, int)

parse

public static int[] parse(String string)

Parses the RGB color from the given string

parseRGB

public static int[] parseRGB(String rgbString)

Returns a color from the given RGB string, in form rgb(R,G,B)

parseRGBfromHex

public static int[] parseRGBfromHex(String hexString)

Returns the RGB components from the given hex string, in form #RRGGBB

toRGB

public static int toRGB(int[] rgb)

Returns an integer with 6 bytes, being them RRGGBB, or -1 if the given array is null or doesn't have 3 elements