bibliothek.util

Class Colors

java.lang.Object

bibliothek.util.Colors

public final class Colors
extends Object

Some fields and methods that make life easier when dealing with Colors.

Author:

Benjamin Sigg

Method Summary

Modifier and Type	Method and Description
static Color	between(Color a, Color b, double value) Creates a color which "lies between" the colors a and b
static Color	between(Color a, double weightA, Color b, double weightB, Color c, double weightC) Creates a color that "lies between" the colors a, b and c.
static Color	brighter(Color color) Helper methods calling Color.brighter().
static Color	brighter(Color c, double value) Increases the brightness of a color.
static Color	darker(Color color) Helper methods calling Color.darker().
static Color	darker(Color c, double value) Decreases the brightness of a color.
static Color	deltaBrightness(Color c, double delta) Converts c into HSB and adds delta to the brightness.
static Color	diffMirror(Color color, double factor)
static Color	fuller(Color color, double factor)
static Color	middle(Color a, Color b)
static Color	undiffMirror(Color color, double factor)

Methods inherited from class java.lang.Object

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

Method Detail

darker

public static Color darker(Color c,
                           double value)

Decreases the brightness of a color.

Parameters:

c - the color which will be made darker

value - how much darker the color should be, 1 means black, 0 means c is returned

Returns:

a color which is darker than c

brighter

public static Color brighter(Color c,
                             double value)

Increases the brightness of a color.

Parameters:

c - the color which will be made brighter

value - how much brighter the color should be, 1 means white, 0 means c is returned

Returns:

a color which is brighter than c

deltaBrightness

public static Color deltaBrightness(Color c,
                                    double delta)

Converts c into HSB and adds delta to the brightness.

Parameters:

c - the color to convert

delta - the delta in brightness

Returns:

the new color

between

public static Color between(Color a,
                            Color b,
                            double value)

Creates a color which "lies between" the colors a and b

Parameters:

a - the first color

b - the second color

value - a value between 0 and 1, 0 means a is returned, 1 means b is returned

Returns:

a color whose rgb-values are between the rgb-values of a and b

between

public static Color between(Color a,
                            double weightA,
                            Color b,
                            double weightB,
                            Color c,
                            double weightC)

Creates a color that "lies between" the colors a, b and c. Each color has a weight, and as higher the weight as more of that color is inside the created color.

Parameters:

a - the first color to incorporate

weightA - how much of a goes into the resulting color

b - the second color to incorporate

weightB - how much of b goes into the resulting color

c - the third color to incorporate

weightC - how much of c goes into the resulting color

Returns:

(a * weightA + b * weightB + c * weightC) / (weightA + weightB + weightC)

middle

public static Color middle(Color a,
                           Color b)

fuller

public static Color fuller(Color color,
                           double factor)

undiffMirror

public static Color undiffMirror(Color color,
                                 double factor)

diffMirror

public static Color diffMirror(Color color,
                               double factor)

darker

public static Color darker(Color color)

Helper methods calling Color.darker().

Parameters:

color - some color to modify, can be null

Returns:

the darker color or null

brighter

public static Color brighter(Color color)

Helper methods calling Color.brighter().

Parameters:

color - some color to modify, can be null

Returns:

the brighter color or null