java.awt
Class ImageCapabilities

java.lang.Object
  |
  +--java.awt.ImageCapabilities

All Implemented Interfaces:

Cloneable

public class ImageCapabilities

extends Object

implements Cloneable

Capabilities and properties of images.

Since:

1.4

Constructor Summary

ImageCapabilities(boolean accelerated)
Creates a new object for specifying image capabilities.

Method Summary

Object	clone() Creates and returns a copy of this object.
boolean	isAccelerated() Returns true if the object whose capabilities are encapsulated in this ImageCapabilities can be or is accelerated.
boolean	isTrueVolatile() Returns true if the VolatileImage described by this ImageCapabilities can lose its surfaces.

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ImageCapabilities

public ImageCapabilities(boolean accelerated)

Creates a new object for specifying image capabilities.

Parameters:

accelerated - whether or not an accelerated image is desired

Method Detail

isAccelerated

public boolean isAccelerated()

Returns true if the object whose capabilities are encapsulated in this ImageCapabilities can be or is accelerated.

Returns:

whether or not an image can be, or is, accelerated. There are various platform-specific ways to accelerate an image, including pixmaps, VRAM, AGP. This is the general acceleration method (as opposed to residing in system memory).

isTrueVolatile

public boolean isTrueVolatile()

Returns true if the VolatileImage described by this ImageCapabilities can lose its surfaces.

Returns:

whether or not a volatile image is subject to losing its surfaces at the whim of the operating system.

clone

public Object clone()

Description copied from class: Object

Creates and returns a copy of this object. The precise meaning of "copy" may depend on the class of the object. The general intent is that, for any object x, the expression:

 x.clone() != x

will be true, and that the expression:

 x.clone().getClass() == x.getClass()

will be true, but these are not absolute requirements. While it is typically the case that:

 x.clone().equals(x)

will be true, this is not an absolute requirement. Copying an object will typically entail creating a new instance of its class, but it also may require copying of internal data structures as well. No constructors are called.

The method clone for class Object performs a specific cloning operation. First, if the class of this object does not implement the interface Cloneable, then a CloneNotSupportedException is thrown. Note that all arrays are considered to implement the interface Cloneable. Otherwise, this method creates a new instance of the class of this object and initializes all its fields with exactly the contents of the corresponding fields of this object, as if by assignment; the contents of the fields are not themselves cloned. Thus, this method performs a "shallow copy" of this object, not a "deep copy" operation.

The class Object does not itself implement the interface Cloneable, so calling the clone method on an object whose class is Object will result in throwing an exception at run time. The clone method is implemented by the class Object as a convenient, general utility for subclasses that implement the interface Cloneable, possibly also overriding the clone method, in which case the overriding definition can refer to this utility definition by the call:

 super.clone()

Overrides:

clone in class Object

Returns:

a copy of this ImageCapabilities object.

See Also:

Cloneable