public final class

TransformAttribute

extends Object
implements Serializable
java.lang.Object
   ↳ java.awt.font.TransformAttribute

Class Overview

The TransformAttribute class provides an immutable wrapper for a transform so that it is safe to use as an attribute.

Summary

Fields
public static final TransformAttribute IDENTITY A TransformAttribute representing the identity transform.
Public Constructors
TransformAttribute(AffineTransform transform)
Wraps the specified transform.
Public Methods
boolean equals(Object rhs)
Returns true if rhs is a TransformAttribute whose transform is equal to this TransformAttribute's transform.
AffineTransform getTransform()
Returns a copy of the wrapped transform.
int hashCode()
Returns a hash code value for the object.
boolean isIdentity()
Returns true if the wrapped transform is an identity transform.
[Expand]
Inherited Methods
From class java.lang.Object

Fields

public static final TransformAttribute IDENTITY

A TransformAttribute representing the identity transform.

Public Constructors

public TransformAttribute (AffineTransform transform)

Wraps the specified transform. The transform is cloned and a reference to the clone is kept. The original transform is unchanged. If null is passed as the argument, this constructor behaves as though it were the identity transform. (Note that it is preferable to use IDENTITY in this case.)

Parameters
transform the specified AffineTransform to be wrapped, or null.

Public Methods

public boolean equals (Object rhs)

Returns true if rhs is a TransformAttribute whose transform is equal to this TransformAttribute's transform.

Parameters
rhs the object to compare to
Returns
  • true if the argument is a TransformAttribute whose transform is equal to this TransformAttribute's transform.

public AffineTransform getTransform ()

Returns a copy of the wrapped transform.

Returns
  • a AffineTransform that is a copy of the wrapped transform of this TransformAttribute.

public int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hashtables such as those provided by java.util.Hashtable.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hashtables.

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)

Returns
  • a hash code value for this object.

public boolean isIdentity ()

Returns true if the wrapped transform is an identity transform.

Returns
  • true if the wrapped transform is an identity transform; false otherwise.