DMDirc-Plugins/ui_swing/src/main/java/com/dmdirc/addons/ui_swing/components/SortedListModel.java

/*
 * Copyright (c) 2006-2017 DMDirc Developers
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
 * OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package com.dmdirc.addons.ui_swing.components;

import java.util.Comparator;

import javax.swing.DefaultListModel;

/**
 * Sorted implementation of DefaultListModel.
 *
 * @param <T> Comparator type
 */
public class SortedListModel<T> extends DefaultListModel<T> {

    /** A version number for this class. */
    private static final long serialVersionUID = 1L;
    /** Comparator. */
    private final Comparator<T> comparator;

    /**
     * Creates a new sorted list model using the specified comparator.
     *
     * @param comparator Comparator
     */
    public SortedListModel(final Comparator<T> comparator) {

        this.comparator = comparator;
    }

    @Override
    public void addElement(final T obj) {
        boolean added = false;
        for (int i = 0; i < getSize(); i++) {
            final T currentObj = getElementAt(i);
            if (comparator.compare(currentObj, obj) > 0) {
                add(i, obj);
                added = true;
                break;
            }
        }
        if (!added) {
            add(getSize(), obj);
        }
    }

}