com.jtattoo.plaf

Class ColorHelper

java.lang.Object

com.jtattoo.plaf.ColorHelper

public class ColorHelper
extends Object

A helper class for handling color values.

Author:

Michael Hagen

Method Summary

Methods

Modifier and Type	Method and Description
static Color	brighter(Color c, double p) Creates a color that is the brighter version of the color parameter c.
static Color	createColor(int r, int g, int b) Creates a color object.
static Color[]	createColorArr(Color c1, Color c2, int steps) Creates an array of color values.
static Color	darker(Color c, double p) Creates a color that is the darker version of the color parameter c.
static int	getGrayValue(Color c) Returns a value between 0 and 255 which represents the gray value of the color parameter.
static int	getGrayValue(Color[] ca) Returns a value between 0 and 255 which represents the median gray value of the color array.
static Color	median(Color c1, Color c2) Returns a color value which is the media between the colors c1 and c1
static Color	toGray(Color c) Returns a gray version of the color parameter c, which means all parts (r,g,b) do have the same value.

Methods inherited from class java.lang.Object

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

Method Detail

createColor

public static Color createColor(int r,
                int g,
                int b)

Creates a color object.

Parameters:

r - the Red component

g - the Green component

b - the Blue component

Returns:

a color object

createColorArr

public static Color[] createColorArr(Color c1,
                     Color c2,
                     int steps)

Creates an array of color values. The colors created will be a gradient from color c1 to color c1 with a count of steps values.

Parameters:

c1 - the starting color

c2 - the ending color

steps - the number of steps between c1 and c2 (the size of the created array)

Returns:

the array of color values

brighter

public static Color brighter(Color c,
             double p)

Creates a color that is the brighter version of the color parameter c.

Parameters:

c - the color

p - the factor of the brightness in percent from 0 to 100

Returns:

a new color value that is a brighter version of the color parameter c

darker

public static Color darker(Color c,
           double p)

Creates a color that is the darker version of the color parameter c.

Parameters:

c - the color

p - the factor to shade the color c in percent from 0 to 100

Returns:

a new color value that is a darker version of the color parameter c

median

public static Color median(Color c1,
           Color c2)

Returns a color value which is the media between the colors c1 and c1

Parameters:

c1 - the first color

c2 - the second color

Returns:

the median color value of the two colors c1 and c1

getGrayValue

public static int getGrayValue(Color c)

Returns a value between 0 and 255 which represents the gray value of the color parameter.

Parameters:

c - the color you want to calculate the gray value

Returns:

the gray value

getGrayValue

public static int getGrayValue(Color[] ca)

Returns a value between 0 and 255 which represents the median gray value of the color array.

Parameters:

ca - the color array you want to calculate the gray value

Returns:

the gray value

toGray

public static Color toGray(Color c)

Returns a gray version of the color parameter c, which means all parts (r,g,b) do have the same value.

Parameters:

c - the color

Returns:

a gray version of the color parameter c.