Package com.vaadin.shared.ui.colorpicker

Class Color

java.lang.Object

com.vaadin.shared.ui.colorpicker.Color

All Implemented Interfaces:

Serializable

public class Color
extends Object
implements Serializable

Default implementation for color.

Since:

7.0.0

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static Color	BLACK
static Color	BLUE
static Color	CYAN
static Color	GREEN
static Color	MAGENTA
static Color	RED
static Color	WHITE
static Color	YELLOW

Constructor Summary

Constructors

Constructor	Description
Color(int rgb)	Creates a color based on an RGB value.
Color(int red, int green, int blue)	Creates a color that has the specified red, green, and blue values within the range [0 - 255].
Color(int red, int green, int blue, int alpha)	Creates a color that has the specified red, green, blue, and alpha values within the range [0 - 255].

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
int	getAlpha()	Returns the alpha value of the color.
int	getBlue()	Returns the blue value of the color.
String	getCSS()	Returns CSS representation of the Color, e.g. #000000.
int	getGreen()	Returns the green value of the color.
float[]	getHSV()	Returns converted HSV components of the color.
int	getRed()	Returns the red value of the color.
int	getRGB()	Returns RGB value of the color.
int	hashCode()
static int	HSLtoRGB(int hue, int saturation, int lightness)	Converts HSL's hue, saturation and lightness into an RGB value.
static int	HSVtoRGB(float hue, float saturation, float value)	Converts HSV's hue, saturation and value into an RGB value.
void	setAlpha(int alpha)	Sets the alpha value of the color.
void	setBlue(int blue)	Sets the blue value of the color.
void	setGreen(int green)	Sets the green value of the color.
void	setRed(int red)	Sets the red value of the color.

Methods inherited from class java.lang.Object

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

Field Detail

WHITE

public static final Color WHITE

BLACK

public static final Color BLACK

RED

public static final Color RED

GREEN

public static final Color GREEN

BLUE

public static final Color BLUE

YELLOW

public static final Color YELLOW

MAGENTA

public static final Color MAGENTA

CYAN

public static final Color CYAN

Constructor Detail

Color

public Color(int red,
             int green,
             int blue,
             int alpha)

Creates a color that has the specified red, green, blue, and alpha values within the range [0 - 255].

Parameters:

red - the red value

green - the green value

blue - the blue value

alpha - the alpha value

Throws:

IllegalArgumentException - if red, green, blue or alpha fall outside of the inclusive range from 0 to 255

Color

public Color(int red,
             int green,
             int blue)

Creates a color that has the specified red, green, and blue values within the range [0 - 255]. Alpha gets the default value of 255.

Parameters:

red - the red value

green - the green value

blue - the blue value

Throws:

IllegalArgumentException - if red, green or blue fall outside of the inclusive range from 0 to 255

Color

public Color(int rgb)

Creates a color based on an RGB value.

Parameters:

rgb - the RGB value

Throws:

IllegalArgumentException - if converted values of red, green, blue or alpha fall outside of the inclusive range from 0 to 255

Method Detail

getRed

public int getRed()

Returns the red value of the color.

setRed

public void setRed(int red)

Sets the red value of the color. Value must be within the range [0, 255].

Parameters:

red - new red value

getGreen

public int getGreen()

Returns the green value of the color.

setGreen

public void setGreen(int green)

Sets the green value of the color. Value must be within the range [0, 255].

Parameters:

green - new green value

getBlue

public int getBlue()

Returns the blue value of the color.

setBlue

public void setBlue(int blue)

Sets the blue value of the color. Value must be within the range [0, 255].

Parameters:

blue - new blue value

getAlpha

public int getAlpha()

Returns the alpha value of the color.

setAlpha

public void setAlpha(int alpha)

Sets the alpha value of the color. Value must be within the range [0, 255].

Parameters:

alpha - new alpha value

getCSS

public String getCSS()

Returns CSS representation of the Color, e.g. #000000.

getRGB

public int getRGB()

Returns RGB value of the color.

getHSV

public float[] getHSV()

Returns converted HSV components of the color.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

HSVtoRGB

public static int HSVtoRGB(float hue,
                           float saturation,
                           float value)

Converts HSV's hue, saturation and value into an RGB value.

The saturation and value components should be floating-point values within the range [0.0-1.0].

Parameters:

hue - the hue of the color

saturation - the saturation of the color

value - the value of the color

Returns:

the RGB value of corresponding color

HSLtoRGB

public static int HSLtoRGB(int hue,
                           int saturation,
                           int lightness)

Converts HSL's hue, saturation and lightness into an RGB value.

Parameters:

hue - the hue of the color. The unit of the value is degrees and should be between 0-360.

saturation - the saturation of the color. The unit of the value is percentages and should be between 0-100;

lightness - the lightness of the color. The unit of the value is percentages and should be between 0-100;

Returns:

the RGB value of corresponding color