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Diffstat (limited to 'libjava/classpath/java/awt/ImageCapabilities.java')
-rw-r--r-- | libjava/classpath/java/awt/ImageCapabilities.java | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/libjava/classpath/java/awt/ImageCapabilities.java b/libjava/classpath/java/awt/ImageCapabilities.java new file mode 100644 index 00000000000..2fe71d1e23b --- /dev/null +++ b/libjava/classpath/java/awt/ImageCapabilities.java @@ -0,0 +1,107 @@ +/* ImageCapabilities.java -- the capabilities of an image buffer + 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; + +/** + * This class represents the capabilities of an image buffer. An + * image buffer may be backed by accelerated graphics resources. + * Those resources may or may not be volatile. This class is used to + * describe these image buffer characteristics. + */ +public class ImageCapabilities implements Cloneable +{ + /** + * Whether or not this the image buffer uses accelerated graphics + * resources. + */ + private final boolean accelerated; + + /** + * Create a new image capability descriptor. + * + * @param accelerated true if the image buffer uses accelerated + * graphics resources + */ + public ImageCapabilities(boolean accelerated) + { + this.accelerated = accelerated; + } + + /** + * Returns whether or not the image buffer uses accelerated graphics + * resources. + * + * @return true if the image buffer uses accelerated graphics + * resources; false otherwise + */ + public boolean isAccelerated() + { + return accelerated; + } + + /** + * Returns whether or not the image buffer's resources are volatile, + * meaning that they can be reclaimed by the graphics system at any + * time. + * + * @return true if the image buffer's resources are volatile; false + * otherwise + */ + public boolean isTrueVolatile() + { + return true; + } + + /** + * Clone this image capability descriptor. + * + * @return a clone of this image capability descriptor + */ + public Object clone() + { + try + { + return super.clone(); + } + catch (CloneNotSupportedException e) + { + throw (Error) new InternalError().initCause(e); + } + } +} |