com.groupdocs.viewer.drawing

Class Rgb24Color

java.lang.Object

com.groupdocs.viewer.drawing.Rgb24Color

public class Rgb24Color
extends Object

Constructor Summary

Constructors

Constructor and Description
Rgb24Color(int r, int g, int b) Private constructor to create a color from red, green, and blue channels.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
static Rgb24Color	fromRgb(int red, int green, int blue) Creates a new Rgb24Color from specified red, green, and blue channel values.
int	getB() Gets the blue channel value.
float	getBrightness() Calculates the brightness (lightness) of this color in HSL color space.
int	getG() Gets the green channel value.
float	getHue() Calculates the hue of this color in degrees (HSL color space).
int	getR() Gets the red channel value.
float	getSaturation() Calculates the saturation of this color in HSL color space.
int	hashCode()
boolean	isDefault() Returns true if the color is the default black color (all channels are zero).
int	toArgb() Returns the 32-bit ARGB representation of this color.
String	toHex() Returns the hexadecimal string representation of the color.
String	toRGB() Returns the CSS rgb() function string representation of the color.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Rgb24Color

public Rgb24Color(int r,
                  int g,
                  int b)

Private constructor to create a color from red, green, and blue channels. Values are clamped to the [0..255] range.

Method Detail

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

fromRgb

public static Rgb24Color fromRgb(int red,
                                 int green,
                                 int blue)

Creates a new Rgb24Color from specified red, green, and blue channel values. The input values are clamped to the valid range [0..255].

Parameters:

red - Red channel value

green - Green channel value

blue - Blue channel value

Returns:

New Rgb24Color instance

getB

public int getB()

Gets the blue channel value.

Returns:

Blue channel [0..255]

getBrightness

public float getBrightness()

Calculates the brightness (lightness) of this color in HSL color space.

Returns:

Brightness as a float in range [0..1]

getG

public int getG()

Gets the green channel value.

Returns:

Green channel [0..255]

getHue

public float getHue()

Calculates the hue of this color in degrees (HSL color space). Returns 0 if the color is grayscale (red = green = blue).

Returns:

Hue in degrees [0..360)

getR

public int getR()

Gets the red channel value.

Returns:

Red channel [0..255]

getSaturation

public float getSaturation()

Calculates the saturation of this color in HSL color space.

Returns:

Saturation as a float in range [0..1]

hashCode

public int hashCode()

Overrides:

hashCode in class Object

isDefault

public boolean isDefault()

Returns true if the color is the default black color (all channels are zero).

Returns:

True if black, otherwise false

toArgb

public int toArgb()

Returns the 32-bit ARGB representation of this color. Alpha is always set to 255 (fully opaque).

Returns:

ARGB color as int

toHex

public String toHex()

Returns the hexadecimal string representation of the color.

Returns:

String in format "#RRGGBB"

toRGB

public String toRGB()

Returns the CSS rgb() function string representation of the color.

Returns:

String in format "rgb(r, g, b)"

toString

public String toString()

Overrides:

toString in class Object