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Eclipse Platform
Release 3.0

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org.eclipse.swt.graphics
Class RGB

java.lang.Object
  org.eclipse.swt.graphics.RGB

All Implemented Interfaces:

Serializable, org.eclipse.swt.internal.SerializableCompatibility

public final class RGB

extends Object

implements org.eclipse.swt.internal.SerializableCompatibility

Instances of this class are descriptions of colors in terms of the primary additive color model (red, green and blue). A color may be described in terms of the relative intensities of these three primary colors. The brightness of each color is specified by a value in the range 0 to 255, where 0 indicates no color (blackness) and 255 indicates maximum intensity.

The hashCode() method in this class uses the values of the public fields to compute the hash value. When storing instances of the class in hashed collections, do not modify these fields after the object has been inserted.

Application code does not need to explicitly release the resources managed by each instance when those instances are no longer required, and thus no dispose() method is provided.

See Also:

Color, Serialized Form

Field Summary

int	blue the blue component of the RGB
int	green the green component of the RGB
int	red the red component of the RGB

Constructor Summary

RGB(int red, int green, int blue)
Constructs an instance of this class with the given red, green and blue values.

Method Summary

boolean	equals(Object object) Compares the argument to the receiver, and returns true if they represent the same object using a class specific comparison.
int	hashCode() Returns an integer hash code for the receiver.
String	toString() Returns a string containing a concise, human-readable description of the receiver.

Methods inherited from class java.lang.Object

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

Field Detail

red

public int red

the red component of the RGB

green

public int green

the green component of the RGB

blue

public int blue

the blue component of the RGB

Constructor Detail

RGB

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

Constructs an instance of this class with the given red, green and blue values.

Parameters:

red - the red component of the new instance

green - the green component of the new instance

blue - the blue component of the new instance

Throws:

IllegalArgumentException -

• ERROR_INVALID_ARGUMENT - if the red, green or blue argument is not between 0 and 255

Method Detail

equals

public boolean equals(Object object)

Compares the argument to the receiver, and returns true if they represent the same object using a class specific comparison.

Parameters:

object - the object to compare with this object

Returns:

true if the object is the same as this object and false otherwise

See Also:

hashCode()

hashCode

public int hashCode()

Returns an integer hash code for the receiver. Any two objects which return true when passed to equals must return the same value for this method.

Returns:

the receiver's hash

See Also:

equals(Object)

toString

public String toString()

Returns a string containing a concise, human-readable description of the receiver.

Returns:

a string representation of the RGB