/*******************************************************************************
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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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* Jan Källman Added 21-MAR-2011
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* Jan Källman License changed GPL-->LGPL 2011-12-16
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*******************************************************************************/
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.IO.Packaging;
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using System.Xml;
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namespace HH.WMS.Utils.EPPlus.Table.PivotTable
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{
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/// <summary>
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/// A collection of pivottable objects
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/// </summary>
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public class ExcelPivotTableCollection : IEnumerable<ExcelPivotTable>
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{
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List<ExcelPivotTable> _pivotTables = new List<ExcelPivotTable>();
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internal Dictionary<string, int> _pivotTableNames = new Dictionary<string, int>();
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ExcelWorksheet _ws;
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internal ExcelPivotTableCollection(ExcelWorksheet ws)
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{
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Package pck = ws._package.Package;
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_ws = ws;
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foreach(var rel in ws.Part.GetRelationships())
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{
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if (rel.RelationshipType == ExcelPackage.schemaRelationships + "/pivotTable")
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{
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var tbl = new ExcelPivotTable(rel, ws);
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_pivotTableNames.Add(tbl.Name, _pivotTables.Count);
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if (tbl.Id + 1 > _ws.Workbook._nextPivotTableID) _ws.Workbook._nextPivotTableID = tbl.Id + 1;
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_pivotTables.Add(tbl);
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}
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}
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}
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private ExcelPivotTable Add(ExcelPivotTable tbl)
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{
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_pivotTables.Add(tbl);
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_pivotTableNames.Add(tbl.Name, _pivotTables.Count - 1);
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if (tbl.Id >= _ws.Workbook._nextPivotTableID)
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{
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_ws.Workbook._nextPivotTableID = tbl.Id + 1;
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}
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return tbl;
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}
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/// <summary>
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/// Create a pivottable on the supplied range
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/// </summary>
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/// <param name="Range">The range address including header and total row</param>
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/// <param name="Source">The Source data range address</param>
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/// <param name="Name">The name of the table. Must be unique </param>
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/// <returns>The pivottable object</returns>
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public ExcelPivotTable Add(ExcelAddressBase Range, ExcelRangeBase Source, string Name)
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{
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if (string.IsNullOrEmpty(Name))
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{
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Name = GetNewTableName();
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}
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if (Range.WorkSheet != _ws.Name)
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{
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throw(new Exception("The Range must be in the current worksheet"));
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}
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else if (_ws.Workbook.ExistsTableName(Name))
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{
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throw (new ArgumentException("Tablename is not unique"));
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}
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foreach (var t in _pivotTables)
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{
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if (t.Address.Collide(Range) != ExcelAddressBase.eAddressCollition.No)
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{
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throw (new ArgumentException(string.Format("Table range collides with table {0}", t.Name)));
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}
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}
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return Add(new ExcelPivotTable(_ws, Range, Source, Name, _ws.Workbook._nextPivotTableID++));
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}
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internal string GetNewTableName()
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{
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string name = "Pivottable1";
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int i = 2;
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while (_ws.Workbook.ExistsPivotTableName(name))
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{
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name = string.Format("Pivottable{0}", i++);
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}
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return name;
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}
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public int Count
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{
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get
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{
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return _pivotTables.Count;
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}
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}
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/// <summary>
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/// The pivottable Index. Base 0.
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/// </summary>
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/// <param name="Index"></param>
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/// <returns></returns>
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public ExcelPivotTable this[int Index]
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{
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get
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{
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if (Index < 0 || Index >= _pivotTables.Count)
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{
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throw (new ArgumentOutOfRangeException("PivotTable index out of range"));
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}
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return _pivotTables[Index];
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}
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}
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/// <summary>
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/// Pivottabes accesed by name
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/// </summary>
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/// <param name="Name">The name of the pivottable</param>
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/// <returns>The Pivotable. Null if the no match is found</returns>
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public ExcelPivotTable this[string Name]
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{
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get
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{
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if (_pivotTableNames.ContainsKey(Name))
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{
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return _pivotTables[_pivotTableNames[Name]];
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}
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else
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{
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return null;
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}
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}
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}
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public IEnumerator<ExcelPivotTable> GetEnumerator()
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{
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return _pivotTables.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 _pivotTables.GetEnumerator();
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}
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}
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}
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