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/**
* Copyright (C) 2018, 2022, 2024 Adrien Hopkins
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package sevenUnitsGUI;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import javax.swing.AbstractListModel;
/**
* A list model that delegates to a list.
* <p>
* It is recommended to use the delegate methods in DelegateListModel instead of
* the delegated list's methods because the delegate methods handle updating the
* list.
* </p>
*
* @author Adrien Hopkins
* @since 2019-01-14
* @since v0.1.0
*/
final class DelegateListModel<E> extends AbstractListModel<E>
implements List<E> {
/**
* @since 2019-01-14
* @since v0.1.0
*/
private static final long serialVersionUID = 8985494428224810045L;
/**
* The list that this model is a delegate to.
*
* @since 2019-01-14
* @since v0.1.0
*/
private final List<E> delegate;
/**
* Creates an empty {@code DelegateListModel}.
*
* @since 2019-04-13
* @since v0.2.0
*/
public DelegateListModel() {
this(new ArrayList<>());
}
/**
* Creates the {@code DelegateListModel}.
*
* @param delegate list to delegate
* @since 2019-01-14
* @since v0.1.0
*/
public DelegateListModel(final List<E> delegate) {
this.delegate = delegate;
}
@Override
public boolean add(final E element) {
final var index = this.delegate.size();
final var success = this.delegate.add(element);
this.fireIntervalAdded(this, index, index);
return success;
}
@Override
public void add(final int index, final E element) {
this.delegate.add(index, element);
this.fireIntervalAdded(this, index, index);
}
@Override
public boolean addAll(final Collection<? extends E> c) {
var changed = false;
for (final E e : c) {
if (this.add(e)) {
changed = true;
}
}
return changed;
}
@Override
public boolean addAll(final int index, final Collection<? extends E> c) {
for (final E e : c) {
this.add(index, e);
}
return !c.isEmpty(); // Since this is a list, it will always change if c
// has elements.
}
@Override
public void clear() {
final var oldSize = this.delegate.size();
this.delegate.clear();
if (oldSize >= 1) {
this.fireIntervalRemoved(this, 0, oldSize - 1);
}
}
@Override
public boolean contains(final Object elem) {
return this.delegate.contains(elem);
}
@Override
public boolean containsAll(final Collection<?> c) {
for (final Object e : c) {
if (!c.contains(e))
return false;
}
return true;
}
@Override
public E get(final int index) {
return this.delegate.get(index);
}
@Override
public E getElementAt(final int index) {
return this.delegate.get(index);
}
@Override
public int getSize() {
return this.delegate.size();
}
@Override
public int indexOf(final Object elem) {
return this.delegate.indexOf(elem);
}
@Override
public boolean isEmpty() {
return this.delegate.isEmpty();
}
@Override
public Iterator<E> iterator() {
return this.delegate.iterator();
}
@Override
public int lastIndexOf(final Object elem) {
return this.delegate.lastIndexOf(elem);
}
@Override
public ListIterator<E> listIterator() {
return this.delegate.listIterator();
}
@Override
public ListIterator<E> listIterator(final int index) {
return this.delegate.listIterator(index);
}
@Override
public E remove(final int index) {
final var returnValue = this.delegate.get(index);
this.delegate.remove(index);
this.fireIntervalRemoved(this, index, index);
return returnValue;
}
@Override
public boolean remove(final Object o) {
final var index = this.delegate.indexOf(o);
final var returnValue = this.delegate.remove(o);
this.fireIntervalRemoved(this, index, index);
return returnValue;
}
@Override
public boolean removeAll(final Collection<?> c) {
var changed = false;
for (final Object e : c) {
if (this.remove(e)) {
changed = true;
}
}
return changed;
}
@Override
public boolean retainAll(final Collection<?> c) {
final var oldSize = this.size();
final var returnValue = this.delegate.retainAll(c);
this.fireIntervalRemoved(this, this.size(), oldSize - 1);
return returnValue;
}
@Override
public E set(final int index, final E element) {
final var returnValue = this.delegate.get(index);
this.delegate.set(index, element);
this.fireContentsChanged(this, index, index);
return returnValue;
}
@Override
public int size() {
return this.delegate.size();
}
@Override
public List<E> subList(final int fromIndex, final int toIndex) {
return this.delegate.subList(fromIndex, toIndex);
}
@Override
public Object[] toArray() {
return this.delegate.toArray();
}
@Override
public <T> T[] toArray(final T[] a) {
return this.delegate.toArray(a);
}
@Override
public String toString() {
return this.delegate.toString();
}
}
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