content: /*
   * android-spinnerwheel
   * https://github.com/ai212983/android-spinnerwheel
   *
   * based on
   *
   * Android Wheel Control.
   * https://code.google.com/p/android-wheel/
   *
   * Copyright 2011 Yuri Kanivets
   *
   * Licensed 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 antistatic.spinnerwheel;
  
      /**
       * Range for visible items.
       */
      public class ItemsRange {
          // First item number
          private int first;
          
          // Items count
          private int count;
      
          /**
           * Default constructor. Creates an empty range
           */
          public ItemsRange() {
              this(0, 0);
          }
          
          /**
           * Constructor
           * @param first the number of first item
           * @param count the count of items
           */
          public ItemsRange(int first, int count) {
              this.first = first;
              this.count = count;
          }
          
          /**
           * Gets number of  first item
           * @return the number of the first item
           */
          public int getFirst() {
              return first;
          }
          
          /**
           * Gets number of last item
           * @return the number of last item
           */
          public int getLast() {
              return getFirst() + getCount() - 1;
          }
          
          /**
           * Get items count
           * @return the count of items
           */
          public int getCount() {
              return count;
          }
          
          /**
           * Tests whether item is contained by range
           * @param index the item number
           * @return true if item is contained
           */
          public boolean contains(int index) {
              return index >= getFirst() && index <= getLast();
          }
  }