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+/***************************************************************************
+                          querytable.h
+                         -------------------
+    begin                : Fri Jul 23 2004
+    copyright            : (C) 2004-2005 by Ace Jones
+                           (C) 2007 Sascha Pfau
+    email                :  acejones@users.sourceforge.net
+                            MrPeacock@gmail.com
+ ***************************************************************************/
+ 
+/****************************************************************************
+  Contains code from the func_xirr and related methods of financial.cpp 
+  - KOffice 1.6 by Sascha Pfau.  Sascha agreed to relicense those methods under
+  GPLv2 or later.
+*****************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef QUERYTABLE_H
+#define QUERYTABLE_H
+
+// ----------------------------------------------------------------------------
+// QT Includes
+
+#include <qstringlist.h>
+
+// ----------------------------------------------------------------------------
+// KDE Includes
+
+// ----------------------------------------------------------------------------
+// Project Includes
+
+#include "../mymoney/mymoneyreport.h"
+#include "listtable.h"
+
+namespace reports {
+
+class ReportAccount;
+
+/**
+  * Calculates a query of information about the transaction database.
+  *
+  * This is a middle-layer class, between the UI and the engine.  The
+  * MyMoneyReport class holds only the CONFIGURATION parameters.  This
+  * class actually does the work of retrieving the data from the engine
+  * and formatting it for the user.
+  *
+  * @author Ace Jones
+  *
+  * @short
+**/
+
+class QueryTable : public ListTable
+{
+  public:
+    QueryTable(const MyMoneyReport&);
+    void init(void);
+
+  protected:
+    void constructAccountTable(void);
+    void constructTransactionTable(void);
+    void constructPerformanceRow( const ReportAccount& account, TableRow& result ) const;
+    void constructSplitsTable(void);
+
+};
+
+//
+// Cash Flow analysis tools for investment reports
+//
+
+class CashFlowListItem
+{
+public:
+  CashFlowListItem(void) {}
+  CashFlowListItem( const QDate& _date, const MyMoneyMoney& _value ): m_date(_date), m_value(_value) {}
+  bool operator<( const CashFlowListItem _second ) const { return m_date < _second.m_date; }
+  bool operator<=( const CashFlowListItem _second ) const { return m_date <= _second.m_date; }
+  bool operator>( const CashFlowListItem _second ) const { return m_date > _second.m_date; }
+  const QDate& date( void ) const { return m_date; }
+  const MyMoneyMoney& value( void ) const { return m_value; }
+  MyMoneyMoney NPV( double _rate ) const;
+
+  static void setToday( const QDate& _today ) { m_sToday = _today; }
+  const QDate& today( void ) const { return m_sToday; }
+
+private:
+  QDate m_date;
+  MyMoneyMoney m_value;
+
+  static QDate m_sToday;
+};
+
+class CashFlowList: public QValueList<CashFlowListItem>
+{
+  public:
+    CashFlowList(void) {}
+    MyMoneyMoney NPV(double rate) const;
+    double IRR(void) const;
+    MyMoneyMoney total(void) const;
+    void dumpDebug(void) const;
+
+    /**
+     * Function: XIRR
+     *
+     * Compute the internal rate of return for a non-periodic series of cash flows.
+     *
+     * XIRR ( Values; Dates; [ Guess = 0.1 ] )
+     **/
+    double calculateXIRR ( void ) const;
+
+  protected:
+    CashFlowListItem mostRecent(void) const;
+
+  private:
+        /**
+   * helper: xirrResult
+   *
+   * args[0] = values
+   * args[1] = dates
+         **/
+    double xirrResult ( double& rate ) const;
+
+        /**
+     *
+     * helper: xirrResultDerive
+     *
+     * args[0] = values
+     * args[1] = dates
+         **/
+    double xirrResultDerive ( double& rate ) const;
+};
+
+}
+
+#endif // QUERYREPORT_H