107 lines
3.7 KiB
Java
107 lines
3.7 KiB
Java
/* GraphicsConfigTemplate.java -- a template for selecting configurations
|
|
Copyright (C) 2002, 2005 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU Classpath.
|
|
|
|
GNU Classpath is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
GNU Classpath is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU Classpath; see the file COPYING. If not, write to the
|
|
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
02110-1301 USA.
|
|
|
|
Linking this library statically or dynamically with other modules is
|
|
making a combined work based on this library. Thus, the terms and
|
|
conditions of the GNU General Public License cover the whole
|
|
combination.
|
|
|
|
As a special exception, the copyright holders of this library give you
|
|
permission to link this library with independent modules to produce an
|
|
executable, regardless of the license terms of these independent
|
|
modules, and to copy and distribute the resulting executable under
|
|
terms of your choice, provided that you also meet, for each linked
|
|
independent module, the terms and conditions of the license of that
|
|
module. An independent module is a module which is not derived from
|
|
or based on this library. If you modify this library, you may extend
|
|
this exception to your version of the library, but you are not
|
|
obligated to do so. If you do not wish to do so, delete this
|
|
exception statement from your version. */
|
|
|
|
|
|
package java.awt;
|
|
|
|
import java.io.Serializable;
|
|
|
|
/**
|
|
* This allows filtering an array of GraphicsConfigurations for the best
|
|
* one based on various requirements. The resulting configuration has had
|
|
* all non-default attributes set as required to meet or exceed the request.
|
|
*
|
|
* @author Eric Blake (ebb9@email.byu.edu)
|
|
* @see GraphicsConfiguration
|
|
* @see GraphicsDevice
|
|
* @since 1.2
|
|
* @status updated to 1.4
|
|
*/
|
|
public abstract class GraphicsConfigTemplate implements Serializable
|
|
{
|
|
/**
|
|
* Compatible with JDK 1.2+.
|
|
*/
|
|
private static final long serialVersionUID = -8061369279557787079L;
|
|
|
|
/** States that a feature is required to select a configuration. */
|
|
public static final int REQUIRED = 1;
|
|
|
|
/**
|
|
* States that a feature is preferred, but not required, to select a
|
|
* configuration. In the case of multiple valid configurations, the tie
|
|
* breaks in favor of the one with the feature.
|
|
*/
|
|
public static final int PREFERRED = 2;
|
|
|
|
/**
|
|
* States that a feature is not necessary in the configuration. In the case
|
|
* of multiple valid configurations, the tie breaks in favor of the one
|
|
* without the feature, to reduce overhead.
|
|
*/
|
|
public static final int UNNECESSARY = 3;
|
|
|
|
/**
|
|
* The default constructor.
|
|
*/
|
|
public GraphicsConfigTemplate()
|
|
{
|
|
}
|
|
|
|
/**
|
|
* Returns the "best" match among the array of possible configurations, given
|
|
* the criteria of this template.
|
|
*
|
|
* @param array the array to choose from
|
|
* @return the best match
|
|
* @throws NullPointerException if array is null
|
|
*/
|
|
public abstract GraphicsConfiguration getBestConfiguration
|
|
(GraphicsConfiguration[] array);
|
|
|
|
/**
|
|
* Returns true if the given configuration supports all the features required
|
|
* by this template.
|
|
*
|
|
* @param config the configuration to test
|
|
* @return true if it is a match
|
|
* @throws NullPointerException if config is null
|
|
*/
|
|
public abstract boolean isGraphicsConfigSupported
|
|
(GraphicsConfiguration config);
|
|
} // class GraphicsConfigTemplate
|