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
Modifier and Type | Field | Description |
---|---|---|
static TransformAttribute | IDENTITY | A |
Constructor Summary
Constructor | Description |
---|---|
TransformAttribute(AffineTransform transform) | Wraps the specified transform. |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
boolean | equals(Object rhs) | Returns |
AffineTransform | getTransform() | Returns a copy of the wrapped transform. |
int | hashCode() | Returns a hash code value for the object. |
boolean | isIdentity() | Returns |
Methods declared in class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
Field Detail
IDENTITY
public static final TransformAttribute IDENTITY
A TransformAttribute
representing the identity transform.
- Since:
- 1.6
Constructor Detail
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 specifiedAffineTransform
to be wrapped, or null.
Method Detail
getTransform
public AffineTransform getTransform()
Returns a copy of the wrapped transform.
- Returns:
- an
AffineTransform
that is a copy of the wrapped transform of thisTransformAttribute
.
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 the 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 inequals
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 thehashCode
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
Object.equals(java.lang.Object)
method, then calling thehashCode
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.
As much as is reasonably practical, the hashCode method defined by class Object
does return distinct integers for distinct objects. (The hashCode may or may not be implemented as some function of an object's memory address at some point in time.)
- Overrides:
-
hashCode
in classObject
- 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 classObject
- Parameters:
-
rhs
- the object to compare to - Returns:
-
true
if the argument is aTransformAttribute
whose transform is equal to thisTransformAttribute
's transform. - Since:
- 1.6
- See Also:
-
Object.hashCode()
,HashMap