EPPlus/FormulaParsing/ExcelUtilities/RangeAddress.cs

/*******************************************************************************
 * You may amend and distribute as you like, but don't remove this header!
 *
 * EPPlus provides server-side generation of Excel 2007/2010 spreadsheets.
 * See http://www.codeplex.com/EPPlus for details.
 *
 * Copyright (C) 2011  Jan Källman
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.

 * This library 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 Lesser General Public License for more details.
 *
 * The GNU Lesser General Public License can be viewed at http://www.opensource.org/licenses/lgpl-license.php
 * If you unfamiliar with this license or have questions about it, here is an http://www.gnu.org/licenses/gpl-faq.html
 *
 * All code and executables are provided "as is" with no warranty either express or implied. 
 * The author accepts no liability for any damage or loss of business that this product may cause.
 *
 * Code change notes:
 * 
 * Author							Change						Date
 * ******************************************************************************
 * Mats Alm   		                Added       		        2013-03-01 (Prior file history on https://github.com/swmal/ExcelFormulaParser)
 *******************************************************************************/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using OfficeOpenXml.FormulaParsing.Utilities;

namespace OfficeOpenXml.FormulaParsing.ExcelUtilities
{
    public class RangeAddress
    {
        public RangeAddress()
        {
            Address = string.Empty;
        }

        internal string Address { get; set; }

        public string Worksheet { get; internal set; }

        public int FromCol { get; internal set; }

        public int ToCol { get; internal set; }

        public int FromRow { get; internal set; }

        public int ToRow { get; internal set; }

        public override string ToString()
        {
            return Address;
        }

        private static RangeAddress _empty = new RangeAddress();
        public static RangeAddress Empty
        {
            get { return _empty; }
        }

        /// <summary>
        /// Returns true if this range collides (full or partly) with the supplied range
        /// </summary>
        /// <param name="other">The range to check</param>
        /// <returns></returns>
        public bool CollidesWith(RangeAddress other)
        {
            if (other.Worksheet != Worksheet)
            {
                return false;
            }
            if (other.FromRow > ToRow || other.FromCol > ToCol
                ||
                FromRow > other.ToRow || FromCol > other.ToCol)
            {
                return false;
            }
            return true;
        }
    }
}