org.extex.color.model
Class GrayscaleColor

java.lang.Object
  org.extex.color.model.GrayscaleColor

All Implemented Interfaces:

java.io.Serializable, Color

public class GrayscaleColor
extends java.lang.Object
implements Color

This class implements a color specification in grayscale mode with an alpha channel.

Version:

$Revision:4446 $

Author:

Gerd Neugebauer

See Also:

Serialized Form

Field Summary

protected static long

serialVersionUID The constant serialVersionUID contains the id for serialization.

Fields inherited from interface org.extex.color.Color

MAX_VALUE

Constructor Summary

protected

GrayscaleColor(int thegray, int theAlpha) Creates a new object.

Method Summary

boolean	equals(java.lang.Object obj) Indicates whether some other object is "equal to" this one.
int	getAlpha() Getter for the alpha channel.
int	getGray() Getter for the gray value.
int	hashCode() Returns a hash code value for the object.
java.lang.String	toString() Returns a string representation of the object.
java.lang.Object	visit(ColorVisitor visitor, java.lang.Object argument) This method provides an entry point for the visitor pattern.

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

protected static final long serialVersionUID

The constant serialVersionUID contains the id for serialization.

See Also:

Constant Field Values

Constructor Detail

GrayscaleColor

protected GrayscaleColor(int thegray,
                         int theAlpha)

Creates a new object.

Parameters:

thegray - the gray channel

theAlpha - the alpha channel

Method Detail

equals

public boolean equals(java.lang.Object obj)

Indicates whether some other object is "equal to" this one.

Specified by:

equals in interface Color

Overrides:

equals in class java.lang.Object

Parameters:

obj - the reference object with which to compare.

Returns:

true if this object is the same as the obj argument; false otherwise.

See Also:

Object.equals(java.lang.Object)

getAlpha

public int getAlpha()

Getter for the alpha channel. The range of the value is 0x00 to 0xffff.

Specified by:

getAlpha in interface Color

Returns:

the alpha channel

See Also:

Color.getAlpha()

getGray

public int getGray()

Getter for the gray value. It has a value in the range from 0 to MAX_VALUE.

Returns:

the gray value.

hashCode

public int hashCode()

Returns a hash code value for the object.

Overrides:

hashCode in class java.lang.Object

Returns:

a hash code value for this object

See Also:

Object.hashCode()

toString

public java.lang.String toString()

Returns a string representation of the object.

Specified by:

toString in interface Color

Overrides:

toString in class java.lang.Object

Returns:

a string representation of the object.

See Also:

Object.toString()

visit

public java.lang.Object visit(ColorVisitor visitor,
                              java.lang.Object argument)
                       throws GeneralException

This method provides an entry point for the visitor pattern.

Specified by:

visit in interface Color

Parameters:

visitor - the visitor to apply

argument - the argument for the visitor

Returns:

the result of the method invocation of the visitor

Throws:

GeneralException - in case of an error

See Also:

Color.visit( org.extex.color.ColorVisitor, java.lang.Object)