| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jface.text; |
| |
| |
| |
| /** |
| * A default implementation of the <code>IRegion</code> interface. |
| */ |
| public class Region implements IRegion { |
| |
| /** The region offset */ |
| private int fOffset; |
| /** The region length */ |
| private int fLength; |
| |
| /** |
| * Create a new region. |
| * |
| * @param offset the offset of the region |
| * @param length the length of the region |
| */ |
| public Region(int offset, int length) { |
| fOffset= offset; |
| fLength= length; |
| } |
| |
| /* |
| * @see IRegion#getLength() |
| */ |
| public int getLength() { |
| return fLength; |
| } |
| |
| /* |
| * @see IRegion#getOffset() |
| */ |
| public int getOffset() { |
| return fOffset; |
| } |
| |
| /** |
| * Two regions are equal if they have the same offset and length. |
| * |
| * @see Object#equals(Object) |
| */ |
| public boolean equals(Object o) { |
| if (o instanceof IRegion) { |
| IRegion r= (IRegion) o; |
| return r.getOffset() == fOffset && r.getLength() == fLength; |
| } |
| return false; |
| } |
| |
| /* |
| * @see Object#hashCode() |
| */ |
| public int hashCode() { |
| return (fOffset << 24) | (fLength << 16); |
| } |
| } |