Spec-Zone .ru спецификации, руководства, описания, API

java.awt
Class GraphicsConfigTemplate

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

public abstract class GraphicsConfigTemplate

extends Object

implements Serializable

The GraphicsConfigTemplate class is used to obtain a valid GraphicsConfiguration. A user instantiates one of these objects and then sets all non-default attributes as desired. The GraphicsDevice.getBestConfiguration(java.awt.GraphicsConfigTemplate) method found in the GraphicsDevice class is then called with this GraphicsConfigTemplate. A valid GraphicsConfiguration is returned that meets or exceeds what was requested in the GraphicsConfigTemplate.

Since:

JDK1.2

See Also:

GraphicsDevice, GraphicsConfiguration, Serialized Form

Field Summary

static int	PREFERRED Value used for "Enum" (Integer) type.
static int	REQUIRED Value used for "Enum" (Integer) type.
static int	UNNECESSARY Value used for "Enum" (Integer) type.

Constructor Summary

GraphicsConfigTemplate()
This class is an abstract class so only subclasses can be instantiated.

Method Summary

abstract GraphicsConfiguration	getBestConfiguration(GraphicsConfiguration[] gc) Returns the "best" configuration possible that passes the criteria defined in the GraphicsConfigTemplate.
abstract boolean	isGraphicsConfigSupported(GraphicsConfiguration gc) Returns a boolean indicating whether or not the specified GraphicsConfiguration can be used to create a drawing surface that supports the indicated features.

Methods inherited from class java.lang.Object

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

Field Detail

REQUIRED

public static final int REQUIRED

Value used for "Enum" (Integer) type. States that this feature is required for the GraphicsConfiguration object. If this feature is not available, do not select the GraphicsConfiguration object.

PREFERRED

public static final int PREFERRED

Value used for "Enum" (Integer) type. States that this feature is desired for the GraphicsConfiguration object. A selection with this feature is preferred over a selection that does not include this feature, although both selections can be considered valid matches.

UNNECESSARY

public static final int UNNECESSARY

Value used for "Enum" (Integer) type. States that this feature is not necessary for the selection of the GraphicsConfiguration object. A selection without this feature is preferred over a selection that includes this feature since it is not used.

Constructor Detail

GraphicsConfigTemplate

public GraphicsConfigTemplate()

This class is an abstract class so only subclasses can be instantiated.

Method Detail

getBestConfiguration

public abstract GraphicsConfiguration getBestConfiguration(GraphicsConfiguration[] gc)

Returns the "best" configuration possible that passes the criteria defined in the GraphicsConfigTemplate.

Parameters:

gc - the array of GraphicsConfiguration objects to choose from.

Returns:

a GraphicsConfiguration object that is the best configuration possible.

See Also:

GraphicsConfiguration

isGraphicsConfigSupported

public abstract boolean isGraphicsConfigSupported(GraphicsConfiguration gc)

Returns a boolean indicating whether or not the specified GraphicsConfiguration can be used to create a drawing surface that supports the indicated features.

Parameters:

gc - the GraphicsConfiguration object to test

Returns:

true if this GraphicsConfiguration object can be used to create surfaces that support the indicated features; false if the GraphicsConfiguration can not be used to create a drawing surface usable by this Java(tm) API.