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High quality UI controls and other tools to complement the core JavaFX distribution
/*
* Copyright (c) 2018, ControlsFX
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of ControlsFX, any associated website, nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL CONTROLSFX BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package impl.org.controlsfx.collections;
import javafx.collections.ListChangeListener.Change;
import javafx.collections.ObservableListBase;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
/**
* Minimum implementation of com.sun.javafx.scene.control.ReadOnlyUnbackedObservableList
*/
public abstract class ReadOnlyUnbackedObservableList extends ObservableListBase {
public void callObservers(Change c) {
fireChange(c);
}
@Override public abstract E get(int i);
@Override public abstract int size();
@Override public int indexOf(Object o) {
if (o == null) return -1;
for (int i = 0; i < size(); i++) {
Object obj = get(i);
if (o.equals(obj)) return i;
}
return -1;
}
@Override public int lastIndexOf(Object o) {
if (o == null) return -1;
for (int i = size() - 1; i >= 0; i--) {
Object obj = get(i);
if (o.equals(obj)) return i;
}
return -1;
}
@Override public boolean contains(Object o) {
return indexOf(o) != -1;
}
@Override public boolean containsAll(Collection c) {
for (Object o : c) {
if (! contains(o)) {
return false;
}
}
return true;
}
@Override public boolean isEmpty() {
return size() == 0;
}
@Override public ListIterator listIterator() {
return new ReadOnlyUnbackedObservableList.SelectionListIterator<>(this);
}
@Override public ListIterator listIterator(int index) {
return new ReadOnlyUnbackedObservableList.SelectionListIterator<>(this, index);
}
@Override
public Iterator iterator() {
return new ReadOnlyUnbackedObservableList.SelectionListIterator<>(this);
}
/**
* NOTE: This method does not fulfill the subList contract from Collections,
* it simply returns a list containing the values in the given range.
*/
@Override public List subList(final int fromIndex, final int toIndex) {
if (fromIndex < 0 || toIndex > size() || fromIndex > toIndex) {
throw new IndexOutOfBoundsException("[ fromIndex: " + fromIndex + ", toIndex: " + toIndex + ", size: " + size() + " ]");
}
final List outer = this;
return new ReadOnlyUnbackedObservableList<>() {
@Override
public E get(int i) {
return outer.get(i + fromIndex);
}
@Override
public int size() {
return toIndex - fromIndex;
}
};
}
@Override
public Object[] toArray() {
Object[] arr = new Object[size()];
for (int i = 0; i < size(); i++) {
arr[i] = get(i);
}
return arr;
}
@SuppressWarnings({"unchecked", "SuspiciousSystemArraycopy"})
@Override
public T[] toArray(T[] a) {
Object[] elementData = toArray();
int size = elementData.length;
if (a.length < size) {
return (T[]) Arrays.copyOf(elementData, size, a.getClass());
}
System.arraycopy(elementData, 0, a, 0, size);
if (a.length > size) {
a[size] = null;
}
return a;
}
@Override
public String toString() {
Iterator i = iterator();
if (! i.hasNext())
return "[]";
StringBuilder sb = new StringBuilder();
sb.append('[');
for (;;) {
E e = i.next();
sb.append(e == this ? "(this Collection)" : e);
if (! i.hasNext())
return sb.append(']').toString();
sb.append(", ");
}
}
@Override
public boolean add(E e) {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public void add(int index, E element) {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public boolean addAll(Collection c) {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public boolean addAll(int index, Collection c) {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public boolean addAll(E... elements) {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public E set(int index, E element) {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public boolean setAll(Collection col) {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public boolean setAll(E... elements) {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public void clear() {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public E remove(int index) {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public boolean remove(Object o) {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public boolean removeAll(Collection c) {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public boolean retainAll(Collection c) {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public void remove(int from, int to) {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public boolean removeAll(E... elements) {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public boolean retainAll(E... elements) {
throw new UnsupportedOperationException("Not supported.");
}
private static class SelectionListIterator implements ListIterator {
private int index;
private final ReadOnlyUnbackedObservableList list;
public SelectionListIterator(ReadOnlyUnbackedObservableList list) {
this(list, 0);
}
public SelectionListIterator(ReadOnlyUnbackedObservableList list, int index) {
this.list = list;
this.index = index;
}
@Override
public boolean hasNext() {
return index < list.size();
}
@Override
public E next() {
return list.get(index++);
}
@Override
public boolean hasPrevious() {
return index > 0;
}
@Override
public E previous() {
return list.get(index--);
}
@Override
public int nextIndex() {
return index + 1;
}
@Override
public int previousIndex() {
return index - 1;
}
@Override
public void remove() {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public void set(E e) {
throw new UnsupportedOperationException("Not supported.");
}
@Override
public void add(E e) {
throw new UnsupportedOperationException("Not supported.");
}
}
}