Package dev.brachtendorf.graphics

Class ColorUtil

java.lang.Object

dev.brachtendorf.graphics.ColorUtil

public class ColorUtil
extends Object

Author:

Kilian

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ColorUtil.ColorPalette

Field Summary

Fields

Modifier and Type	Field	Description
static double	CB_BLUE
static double	CB_GREEN
static double	CB_RED
static double	CR_BLUE
static double	CR_GREEN
static double	CR_RED
static double	LUMA_BLUE
static double	LUMA_GREEN
static double	LUMA_RED

Constructor Summary

Constructors

Constructor	Description
ColorUtil()

Method Summary

Modifier and Type	Method	Description
static int[]	argbToComponents(int argb)	Convert an argb value to it's individual components in range of 0 - 255
static javafx.scene.paint.Color	argbToFXColor(int argb)	Convert an argb value (alpha 24,red 16, green 8, blue 0) into a java fx color.
static javafx.scene.paint.Color	awtToFxColor(Color awtColor)	Convert a Java AWT color to it's JavaFX sibling
static int	componentsToARGB(int alpha, int red, int green, int blue)	Converts the components to a single int argb representation.
static double	distance(Color c1, Color c2)	Compute a distance metric of 2 colors.
static double	distance(javafx.scene.paint.Color c1, javafx.scene.paint.Color c2)	Compute a distance metric of 2 colors.
static Color	fxToAwtColor(javafx.scene.paint.Color fxColor)	Convert a JavaFX color to it's awt sibling
static String	fxToHex(javafx.scene.paint.Color color)	Return the hexcode of a color
static Color	getContrastColor(Color input)	Return either white or black depending on the supplied color to guarantee readability.
static javafx.scene.paint.Color	getContrastColor(javafx.scene.paint.Color input)	Return either white or black depending on the supplied color to guarantee readability.
static int	getLuma(Color c)	Get the Y (luma component) of the YCrCb color model
static double	getLuma(javafx.scene.paint.Color c)	Get the Y (luma component) of the YCrCb color model

Methods inherited from class java.lang.Object

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

Field Detail

LUMA_RED

public static final double LUMA_RED

See Also:

Constant Field Values

LUMA_GREEN

public static final double LUMA_GREEN

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Constant Field Values

LUMA_BLUE

public static final double LUMA_BLUE

See Also:

Constant Field Values

CR_RED

public static final double CR_RED

See Also:

Constant Field Values

CR_GREEN

public static final double CR_GREEN

See Also:

Constant Field Values

CR_BLUE

public static final double CR_BLUE

See Also:

Constant Field Values

CB_RED

public static final double CB_RED

See Also:

Constant Field Values

CB_GREEN

public static final double CB_GREEN

See Also:

Constant Field Values

CB_BLUE

public static final double CB_BLUE

See Also:

Constant Field Values

Constructor Detail

ColorUtil

public ColorUtil()

Method Detail

fxToAwtColor

public static Color fxToAwtColor(javafx.scene.paint.Color fxColor)

Convert a JavaFX color to it's awt sibling

Parameters:

fxColor - The fx color to convert

Returns:

The awt color

Since:

1.0.0 com.github.kilianB

awtToFxColor

public static javafx.scene.paint.Color awtToFxColor(Color awtColor)

Convert a Java AWT color to it's JavaFX sibling

Parameters:

awtColor - The awt color to convert

Returns:

The fx color

Since:

1.0.0 com.github.kilianB

argbToComponents

public static int[] argbToComponents(int argb)

Convert an argb value to it's individual components in range of 0 - 255

Parameters:

argb - values as int

Returns:

[0] Alpha, [1] Red, [2] Green, [3] Blue

Since:

1.0.0 com.github.kilianB

componentsToARGB

public static int componentsToARGB(int alpha,
                                   int red,
                                   int green,
                                   int blue)

Converts the components to a single int argb representation. The individual values are not range checked

Parameters:

alpha - in range of 0 - 255

red - in range of 0 - 255

green - in range of 0 - 255

blue - in range of 0 - 255

Returns:

a single int representing the argb value

Since:

1.0.0 com.github.kilianB

argbToFXColor

public static javafx.scene.paint.Color argbToFXColor(int argb)

Convert an argb value (alpha 24,red 16, green 8, blue 0) into a java fx color.

Parameters:

argb - the argb color as an int

Returns:

The JavaFX Color

Since:

1.0.0 com.github.kilianB

fxToHex

public static String fxToHex(javafx.scene.paint.Color color)

Return the hexcode of a color

Parameters:

color - the color to convert

Returns:

a hex representation of the color

Since:

1.0.0 com.github.kilianB

distance

public static double distance(javafx.scene.paint.Color c1,
                              javafx.scene.paint.Color c2)

Compute a distance metric of 2 colors. The distance of a color is greater the further away two colors are.

Identical colors will return a distance of 0.

Parameters:

c1 - The first color

c2 - The second color

Returns:

a double value indicating the distance of two colors

Since:

1.0.0 com.github.kilianB

distance

public static double distance(Color c1,
                              Color c2)

Compute a distance metric of 2 colors. The distance of a color is greater the further away two colors are.

Identical colors will return a distance of 0.

Parameters:

c1 - The first color

c2 - The second color

Returns:

a double value indicating the distance of two colors

Since:

1.0.0 com.github.kilianB

getLuma

public static double getLuma(javafx.scene.paint.Color c)

Get the Y (luma component) of the YCrCb color model

Parameters:

c - an javaFX color

Returns:

the luma component in the tange [0-1]

Since:

1.3.2 com.github.kilianB

getLuma

public static int getLuma(Color c)

Get the Y (luma component) of the YCrCb color model

Parameters:

c - an awt color

Returns:

the luma component in the tange [0-255]

Since:

1.3.2 com.github.kilianB

getContrastColor

public static javafx.scene.paint.Color getContrastColor(javafx.scene.paint.Color input)

Return either white or black depending on the supplied color to guarantee readability. The contrast color is assumed to be used as text overlay on top of the input color.

Parameters:

input - the color of the background

Returns:

the color (white or black) of the foreground whichever guarantees more readability.

Since:

1.0.0 com.github.kilianB

getContrastColor

public static Color getContrastColor(Color input)

Return either white or black depending on the supplied color to guarantee readability. The contrast color is assumed to be used as text overlay on top of the input color.

Parameters:

input - the color of the background

Returns:

the color (white or black) of the foreground whichever guarantees more readability.

Since:

1.3.2 com.github.kilianB