File indexing completed on 2024-04-28 16:32:04

 /***************************************************************************
     Copyright (C) 2003-2009 Robby Stephenson <robby@periapsis.org>
  ***************************************************************************/
 
 /***************************************************************************
  *                                                                         *
  *   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) version 3 or any later version        *
  *   accepted by the membership of KDE e.V. (or its successor approved     *
  *   by the membership of KDE e.V.), which shall act as a proxy            *
  *   defined in Section 14 of version 3 of the license.                    *
  *                                                                         *
  *   This program 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 General Public License for more details.                          *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  *                                                                         *
  ***************************************************************************/
 
 #ifndef TELLICO_KERNEL_H
 #define TELLICO_KERNEL_H
 
 #include "datavectors.h"
 #include "borrower.h"
 
 class QUndoStack;
 class QWidget;
 class QString;
 class QStringList;
 class QUndoCommand;
 class QUrl;
 
 namespace Tellico {
   class Filter;
   namespace Data {
     class Collection;
   }
 
 /**
  * @author Robby Stephenson
  */
 class Kernel {
 
 public:
   static Kernel* self() { return s_self; }
   /**
    * Initializes the singleton. Should just be called once, from Tellico::MainWindow
    */
   static void init(QWidget* parent) { if(!s_self) s_self = new Kernel(parent); }
 
   /**
    * Returns a pointer to the parent widget. This is mainly used for error dialogs and the like.
    *
    * @return The widget pointer
    */
   QWidget* widget() { return m_widget; }
 
   /**
    * Returns the url of the current document.
    *
    * @return The URL
    */
   QUrl URL() const;
 
   int collectionType() const;
   QString collectionTypeName() const;
 
   void sorry(const QString& text, QWidget* widget=nullptr);
 
   void beginCommandGroup(const QString& name);
   void endCommandGroup();
   void resetHistory();
 
   bool addField(Data::FieldPtr field);
   bool modifyField(Data::FieldPtr field);
   bool removeField(Data::FieldPtr field);
 
   void addEntries(Data::EntryList entries, bool checkFields);
   void modifyEntries(Data::EntryList oldEntries, Data::EntryList newEntries, const QStringList& modifiedFields);
   void updateEntry(Data::EntryPtr oldEntry, Data::EntryPtr newEntry, bool overWrite);
   void removeEntries(Data::EntryList entries);
 
   bool addLoans(Data::EntryList entries);
   bool modifyLoan(Data::LoanPtr loan);
   bool removeLoans(Data::LoanList loans);
 
   void addFilter(FilterPtr filter);
   bool modifyFilter(FilterPtr filter);
   bool removeFilter(FilterPtr filter);
 
   void reorderFields(const Data::FieldList& fields);
 
   void appendCollection(Data::CollPtr coll);
   void mergeCollection(Data::CollPtr coll);
   void replaceCollection(Data::CollPtr coll);
 
   void renameCollection();
   QUndoStack* commandHistory() { return m_commandHistory; }
 
   int askAndMerge(Data::EntryPtr entry1, Data::EntryPtr entry2, Data::FieldPtr field,
                   QString value1 = QString(), QString value2 = QString());
 
 private:
   static Kernel* s_self;
 
   // all constructors are private
   Kernel(QWidget* parent);
   Q_DISABLE_COPY(Kernel)
   ~Kernel();
 
   void doCommand(QUndoCommand* command);
 
   QWidget* m_widget;
   QUndoStack* m_commandHistory;
 };
 
 } // end namespace
 #endif