/*******************************************************************************
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* You may amend and distribute as you like, but don't remove this header!
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*
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* EPPlus provides server-side generation of Excel 2007/2010 spreadsheets.
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* See http://www.codeplex.com/EPPlus for details.
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*
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* Copyright (C) 2011 Jan Källman
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU Lesser General Public License for more details.
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*
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* The GNU Lesser General Public License can be viewed at http://www.opensource.org/licenses/lgpl-license.php
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* If you unfamiliar with this license or have questions about it, here is an http://www.gnu.org/licenses/gpl-faq.html
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*
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* All code and executables are provided "as is" with no warranty either express or implied.
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* The author accepts no liability for any damage or loss of business that this product may cause.
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*
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* Code change notes:
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*
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* Author Change Date
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* ******************************************************************************
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* Mats Alm Added 2011-01-08
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* Jan Källman License changed GPL-->LGPL 2011-12-27
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*******************************************************************************/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Xml;
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using HH.WMS.Utils.EPPlus.Utils;
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using HH.WMS.Utils.EPPlus.DataValidation.Formulas.Contracts;
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using System.Text.RegularExpressions;
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using System.Collections;
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namespace HH.WMS.Utils.EPPlus.DataValidation.Formulas
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{
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internal class ExcelDataValidationFormulaList : ExcelDataValidationFormula, IExcelDataValidationFormulaList
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{
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#region class DataValidationList
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private class DataValidationList : IList<string>, ICollection
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{
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private IList<string> _items = new List<string>();
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private EventHandler<EventArgs> _listChanged;
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public event EventHandler<EventArgs> ListChanged
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{
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add { _listChanged += value; }
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remove { _listChanged -= value; }
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}
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private void OnListChanged()
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{
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if (_listChanged != null)
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{
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_listChanged(this, EventArgs.Empty);
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}
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}
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#region IList members
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int IList<string>.IndexOf(string item)
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{
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return _items.IndexOf(item);
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}
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void IList<string>.Insert(int index, string item)
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{
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_items.Insert(index, item);
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OnListChanged();
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}
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void IList<string>.RemoveAt(int index)
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{
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_items.RemoveAt(index);
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OnListChanged();
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}
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string IList<string>.this[int index]
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{
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get
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{
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return _items[index];
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}
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set
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{
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_items[index] = value;
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OnListChanged();
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}
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}
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void ICollection<string>.Add(string item)
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{
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_items.Add(item);
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OnListChanged();
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}
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void ICollection<string>.Clear()
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{
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_items.Clear();
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OnListChanged();
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}
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bool ICollection<string>.Contains(string item)
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{
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return _items.Contains(item);
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}
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void ICollection<string>.CopyTo(string[] array, int arrayIndex)
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{
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_items.CopyTo(array, arrayIndex);
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}
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int ICollection<string>.Count
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{
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get { return _items.Count; }
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}
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bool ICollection<string>.IsReadOnly
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{
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get { return false; }
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}
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bool ICollection<string>.Remove(string item)
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{
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var retVal = _items.Remove(item);
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OnListChanged();
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return retVal;
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}
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IEnumerator<string> IEnumerable<string>.GetEnumerator()
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{
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return _items.GetEnumerator();
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}
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System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
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{
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return _items.GetEnumerator();
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}
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#endregion
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public void CopyTo(Array array, int index)
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{
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_items.CopyTo((string[])array, index);
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}
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int ICollection.Count
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{
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get { return _items.Count; }
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}
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public bool IsSynchronized
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{
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get { return ((ICollection)_items).IsSynchronized; }
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}
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public object SyncRoot
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{
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get { return ((ICollection)_items).SyncRoot; }
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}
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}
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#endregion
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public ExcelDataValidationFormulaList(XmlNamespaceManager namespaceManager, XmlNode itemNode, string formulaPath)
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: base(namespaceManager, itemNode, formulaPath)
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{
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Require.Argument(formulaPath).IsNotNullOrEmpty("formulaPath");
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_formulaPath = formulaPath;
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var values = new DataValidationList();
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values.ListChanged += new EventHandler<EventArgs>(values_ListChanged);
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Values = values;
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SetInitialValues();
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}
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private string _formulaPath;
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private void SetInitialValues()
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{
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var @value = GetXmlNodeString(_formulaPath);
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if (!string.IsNullOrEmpty(@value))
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{
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if (@value.StartsWith("\"") && @value.EndsWith("\""))
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{
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@value = @value.TrimStart('"').TrimEnd('"');
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var items = @value.Split(new char[]{','}, StringSplitOptions.RemoveEmptyEntries);
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foreach (var item in items)
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{
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Values.Add(item);
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}
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}
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else
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{
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ExcelFormula = @value;
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}
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}
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}
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void values_ListChanged(object sender, EventArgs e)
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{
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if (Values.Count > 0)
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{
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State = FormulaState.Value;
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}
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SetXmlNodeString(_formulaPath, GetValueAsString());
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}
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public IList<string> Values
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{
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get;
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private set;
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}
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protected override string GetValueAsString()
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{
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var sb = new StringBuilder();
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foreach (var val in Values)
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{
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if (sb.Length == 0)
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{
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sb.Append("\"");
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sb.Append(val);
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}
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else
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{
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sb.AppendFormat(", {0}", val);
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}
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}
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sb.Append("\"");
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return sb.ToString();
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}
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internal override void ResetValue()
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{
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Values.Clear();
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}
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}
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}
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