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java.awt.font
Class ShapeGraphicAttribute  view ShapeGraphicAttribute download ShapeGraphicAttribute.java

java.lang.Object
  extended byjava.awt.font.GraphicAttribute
      extended byjava.awt.font.ShapeGraphicAttribute

public final class ShapeGraphicAttribute
extends GraphicAttribute


Field Summary
static boolean FILL
           
private  java.awt.Shape shape
           
private  boolean stroke
           
static boolean STROKE
           
 
Fields inherited from class java.awt.font.GraphicAttribute
BOTTOM_ALIGNMENT, CENTER_BASELINE, HANGING_BASELINE, ROMAN_BASELINE, TOP_ALIGNMENT
 
Constructor Summary
ShapeGraphicAttribute(java.awt.Shape shape, int alignment, boolean stroke)
           
 
Method Summary
 void draw(java.awt.Graphics2D graphics, float x, float y)
           
 boolean equals(java.lang.Object obj)
          Determine whether this Object is semantically equal to another Object.
 boolean equals(ShapeGraphicAttribute rhs)
           
 float getAdvance()
           
 float getAscent()
           
 java.awt.geom.Rectangle2D getBounds()
           
 float getDescent()
           
 int hashCode()
          Get a value that represents this Object, as uniquely as possible within the confines of an int.
 
Methods inherited from class java.awt.font.GraphicAttribute
getAlignment, getJustificationInfo
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

FILL

public static final boolean FILL
See Also:
Constant Field Values

STROKE

public static final boolean STROKE
See Also:
Constant Field Values

shape

private java.awt.Shape shape

stroke

private boolean stroke
Constructor Detail

ShapeGraphicAttribute

public ShapeGraphicAttribute(java.awt.Shape shape,
                             int alignment,
                             boolean stroke)
Method Detail

draw

public void draw(java.awt.Graphics2D graphics,
                 float x,
                 float y)
          throws gnu.classpath.NotImplementedException
Specified by:
draw in class GraphicAttribute

equals

public boolean equals(java.lang.Object obj)
Description copied from class: java.lang.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 java.lang.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 java.lang.NullPointerException.

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

The default implementation returns this == o.


equals

public boolean equals(ShapeGraphicAttribute rhs)

getAdvance

public float getAdvance()
                 throws gnu.classpath.NotImplementedException
Specified by:
getAdvance in class GraphicAttribute

getAscent

public float getAscent()
                throws gnu.classpath.NotImplementedException
Specified by:
getAscent in class GraphicAttribute

getBounds

public java.awt.geom.Rectangle2D getBounds()
Overrides:
getBounds in class GraphicAttribute

getDescent

public float getDescent()
                 throws gnu.classpath.NotImplementedException
Specified by:
getDescent in class GraphicAttribute

hashCode

public int hashCode()
Description copied from class: java.lang.Object
Get a value that represents this Object, as uniquely as possible within the confines of an int.

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

  • Semantic equality implies identical hashcodes. In other words, if a.equals(b) is true, then a.hashCode() == b.hashCode() must be as well. However, the reverse is not necessarily true, and two objects may have the same hashcode without being equal.
  • It must be consistent. Whichever value o.hashCode() returns on the first invocation must be the value returned on all later invocations as long as the object exists. Notice, however, that the result of hashCode may change between separate executions of a Virtual Machine, because it is not invoked on the same object.

Notice that since hashCode is used in java.util.Hashtable and other hashing classes, a poor implementation will degrade the performance of hashing (so don't blindly implement it as returning a constant!). Also, if calculating the hash is time-consuming, a class may consider caching the results.

The default implementation returns System.identityHashCode(this)