package com.mm.android.deviceaddmodule.mobilecommon.widget.antistatic.spinnerwheel;
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/**
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* Range for visible items.
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*/
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public class ItemsRange {
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// First item number
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private int first;
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// Items count
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private int count;
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/**
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* Default constructor. Creates an empty range
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*/
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public ItemsRange() {
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this(0, 0);
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}
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/**
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* Constructor
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* @param first the number of first item
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* @param count the count of items
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*/
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public ItemsRange(int first, int count) {
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this.first = first;
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this.count = count;
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}
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/**
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* Gets number of first item
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* @return the number of the first item
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*/
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public int getFirst() {
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return first;
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}
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/**
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* Gets number of last item
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* @return the number of last item
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*/
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public int getLast() {
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return getFirst() + getCount() - 1;
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}
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/**
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* Get items count
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* @return the count of items
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*/
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public int getCount() {
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return count;
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}
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/**
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* Tests whether item is contained by range
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* @param index the item number
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* @return true if item is contained
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*/
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public boolean contains(int index) {
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return index >= getFirst() && index <= getLast();
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}
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}
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