EntryListSource.java

/*
 * Copyright 2024 Terminal Utils Authors
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package net.morimekta.terminal.selection;

import java.util.List;

/**
 * Entry source for holding a list.
 *
 * @param <E> The type of entry.
 */
public class EntryListSource<E> implements EntrySource<E> {
    private final List<E> list;

    /**
     * Create an entry list source.
     *
     * @param list The list to wrap.
     */
    public EntryListSource(List<E> list) {
        this.list = list;
    }

    @Override
    public int size() {
        return list.size();
    }

    @Override
    public E get(int i) {
        return list.get(i);
    }

    @Override
    public int indexOf(E e) {
        return list.indexOf(e);
    }

    @Override
    public List<E> load(int offset, int maxEntries) {
        return list.subList(offset, Math.min(size(), offset + maxEntries));
    }
}