gnu.java.awt

Class BitMaskExtent


public final class BitMaskExtent
extends Object

Simple transparent utility class that can be used to perform bit mask extent calculations.

Field Summary

byte
bitWidth
The number of bits in the bit mask extent.
byte
leastSignificantBit
The number of the least significant bit of the bit mask extent.

Method Summary

void
setMask(long mask)
Set the bit mask.
long
toMask()
Calculate the bit mask based on the values of the leastSignificantBit and bitWidth fields.

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

bitWidth

public byte bitWidth
The number of bits in the bit mask extent.

leastSignificantBit

public byte leastSignificantBit
The number of the least significant bit of the bit mask extent.

Method Details

setMask

public void setMask(long mask)
Set the bit mask. This will calculate and set the leastSignificantBit and bitWidth fields.

toMask

public long toMask()
Calculate the bit mask based on the values of the leastSignificantBit and bitWidth fields.

Copyright (C) 2000, 2002 Free Software Foundation 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.