java.awt.font

Class FontRenderContext

java.lang.Object

java.awt.font.FontRenderContext

public class FontRenderContext
extends Object

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FontRenderContext() Construct a new FontRenderContext.
	FontRenderContext(AffineTransform tx, boolean isAntiAliased, boolean usesFractionalMetrics) Construct a new FontRenderContext.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(FontRenderContext rhs)
boolean	equals(Object obj) Determine whether this Object is semantically equal to another Object.
AffineTransform	getTransform() Retrieves the affine transform for scaling typographical points to raster pixels.
int	hashCode() Returns the hash code of the font render context.
boolean	isAntiAliased()
boolean	usesFractionalMetrics()

Methods inherited from class java.lang.Object

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

Constructor Detail

FontRenderContext

protected FontRenderContext()

Construct a new FontRenderContext.

FontRenderContext

public FontRenderContext(AffineTransform tx,
                 boolean isAntiAliased,
                 boolean usesFractionalMetrics)

Construct a new FontRenderContext.

Method Detail

equals

public boolean equals(Object obj)

Description copied from class: Object

Determine whether this Object is semantically equal to another Object.

There are some fairly strict requirements on this method which subclasses must follow:

• It must be transitive. If a.equals(b) and b.equals(c), then a.equals(c) must be true as well.
• It must be symmetric. a.equals(b) and b.equals(a) must have the same value.
• It must be reflexive. a.equals(a) must always be true.
• It must be consistent. Whichever value a.equals(b) returns on the first invocation must be the value returned on all later invocations.
• a.equals(null) must be false.
• It must be consistent with hashCode(). That is, a.equals(b) must imply a.hashCode() == b.hashCode(). The reverse is not true; two objects that are not equal may have the same hashcode, but that has the potential to harm hashing performance.

This is typically overridden to throw a ClassCastException if the argument is not comparable to the class performing the comparison, but that is not a requirement. It is legal for a.equals(b) to be true even though a.getClass() != b.getClass(). Also, it is typical to never cause a NullPointerException.

In general, the Collections API (java.util) use the equals method rather than the == operator to compare objects. However, IdentityHashMap is an exception to this rule, for its own good reasons.

The default implementation returns this == o.

Overrides:

equals in class Object

Parameters:

obj - the Object to compare to

Returns:

whether this Object is semantically equal to another

See Also:

Object.hashCode()

equals

public boolean equals(FontRenderContext rhs)

getTransform

public AffineTransform getTransform()

Retrieves the affine transform for scaling typographical points to raster pixels.

Returns:

a clone of the transform object.

hashCode

public int hashCode()

Returns the hash code of the font render context.

Overrides:

hashCode in class Object

Returns:

the hash code for this Object

See Also:

Object.equals(Object), System.identityHashCode(Object)

isAntiAliased

public boolean isAntiAliased()

usesFractionalMetrics

public boolean usesFractionalMetrics()