com.sun.javafx.collections.SourceAdapterChange Maven / Gradle / Ivy
/*
* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.javafx.collections;
import java.util.List;
import javafx.collections.ListChangeListener;
import javafx.collections.ListChangeListener.Change;
import javafx.collections.ObservableList;
public class SourceAdapterChange extends ListChangeListener.Change {
private final Change change;
private int[] perm;
public SourceAdapterChange(ObservableList list, Change change) {
super(list);
this.change = change;
}
@Override
public boolean next() {
perm = null;
return change.next();
}
@Override
public void reset() {
change.reset();
}
@Override
public int getTo() {
return change.getTo();
}
@Override
public List getRemoved() {
return (List) change.getRemoved();
}
@Override
public int getFrom() {
return change.getFrom();
}
@Override
public boolean wasUpdated() {
return change.wasUpdated();
}
@Override
protected int[] getPermutation() {
if (perm == null) {
if (change.wasPermutated()) {
final int from = change.getFrom();
final int n = change.getTo() - from;
perm = new int[n];
for (int i=0; i