Module java.desktop

Package java.awt.font

Class TransformAttribute

java.lang.Object

java.awt.font.TransformAttribute

All Implemented Interfaces:

Serializable

public final class TransformAttribute
extends Object
implements Serializable

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

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final TransformAttribute	IDENTITY	A TransformAttribute representing the identity transform.

Constructor Summary

Constructors

Constructor	Description
TransformAttribute(AffineTransform transform)	Wraps the specified transform.

Method Summary

Modifier and Type	Method	Description
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 this object.
boolean	isIdentity()	Returns true if the wrapped transform is an identity transform.

Methods declared in class java.lang.Object

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

Field Details

IDENTITY

public static final TransformAttribute IDENTITY

A TransformAttribute representing the identity transform.

Since:

1.6

Constructor Details

TransformAttribute

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.

Method Details

getTransform

public AffineTransform getTransform()

Returns a copy of the wrapped transform.

Returns:

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

isIdentity

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.

Since:

1.4

hashCode

public int hashCode()

Description copied from class: Object

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by HashMap.

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 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 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 hash tables.

Overrides:

hashCode in class Object

Returns:

a hash code value for this object

Since:

1.6

See Also:

• Object.equals(java.lang.Object)
• System.identityHashCode(java.lang.Object)

equals

public boolean equals(Object rhs)

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

Overrides:

equals in class Object

Parameters:

rhs - the object to compare to

Returns:

true if the argument is a TransformAttribute whose transform is equal to this TransformAttribute's transform.

Since:

1.6

See Also:

• Object.hashCode()
• HashMap