File indexing completed on 2024-05-12 05:09:24

 /***************************************************************************
     Copyright (C) 2006-2009 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/>. *
  *                                                                         *
  ***************************************************************************/
 
 #include "modifyentries.h"
 #include "../collection.h"
 #include "../controller.h"
 #include "../tellico_debug.h"
 
 #include <KLocalizedString>
 
 using Tellico::Command::ModifyEntries;
 
 ModifyEntries::ModifyEntries(Tellico::Data::CollPtr coll_, const Tellico::Data::EntryList& oldEntries_,
                              const Tellico::Data::EntryList& newEntries_, const QStringList& modifiedFields_)
     : QUndoCommand()
     , m_coll(coll_)
     , m_oldEntries(oldEntries_)
     , m_entries(newEntries_)
     , m_modifiedFields(modifiedFields_)
     , m_needToSwap(false)
 {
 #ifndef NDEBUG
   if(m_oldEntries.count() != m_entries.count()) {
     myWarning() << "unequal number of entries";
   }
 #endif
   if(!m_entries.isEmpty()) {
     setText(m_entries.count() > 1 ? i18n("Modify Entries")
                                   : i18nc("Modify (Entry Title)", "Modify %1", m_entries[0]->title()));
   }
 }
 
 ModifyEntries::ModifyEntries(QUndoCommand* parent, Tellico::Data::CollPtr coll_, const Tellico::Data::EntryList& oldEntries_,
                              const Tellico::Data::EntryList& newEntries_, const QStringList& modifiedFields_)
     : QUndoCommand(parent)
     , m_coll(coll_)
     , m_oldEntries(oldEntries_)
     , m_entries(newEntries_)
     , m_modifiedFields(modifiedFields_)
     , m_needToSwap(false)
 {
 #ifndef NDEBUG
   if(m_oldEntries.count() != m_entries.count()) {
     myWarning() << "unequal number of entries";
   }
 #endif
   if(!m_entries.isEmpty()) {
     setText(m_entries.count() > 1 ? i18n("Modify Entries")
                                   : i18nc("Modify (Entry Title)", "Modify %1", m_entries[0]->title()));
   }
 }
 
 void ModifyEntries::redo() {
   if(!m_coll || m_entries.isEmpty()) {
     return;
   }
   if(m_needToSwap) {
     swapValues();
     m_needToSwap = false;
   }
   // loans expose a field named "loaned", and the user might modify that without
   // checking in the loan, so verify that. Heavy-handed, yes...
   const QString loaned = QStringLiteral("loaned");
   bool hasLoanField = m_coll->hasField(loaned);
   if(hasLoanField && m_modifiedFields.contains(loaned)) {
     Data::EntryList notLoaned;
     foreach(Data::EntryPtr entry, m_entries) {
       if(entry->field(loaned).isEmpty()) {
         notLoaned.append(entry);
       }
     }
     if(!notLoaned.isEmpty()) {
       Controller::self()->slotCheckIn(notLoaned);
     }
   }
   m_coll->updateDicts(m_entries, m_modifiedFields);
   Controller::self()->modifiedEntries(m_entries);
 }
 
 void ModifyEntries::undo() {
   if(!m_coll || m_entries.isEmpty()) {
     return;
   }
   swapValues();
   m_needToSwap = true;
   m_coll->updateDicts(m_entries, m_modifiedFields);
   Controller::self()->modifiedEntries(m_entries);
   //TODO: need to tell edit dialog that it's not modified
 }
 
 void ModifyEntries::swapValues() {
   // since things like the detailedlistview and the entryiconview hold pointers to the entries
   // can't just call Controller::modifiedEntry() on the old pointers
   for(int i = 0; i < m_entries.count(); ++i) {
     // need to swap entry values, not just pointers
     // the id gets reset when copying, so need to keep it
     const Data::ID id = m_entries[i]->id();
     Data::Entry tmp(*m_entries[i]); // tmp id becomes -1
     *m_entries[i] = *m_oldEntries[i]; // id becomes -1
     m_entries[i]->setId(id); // id becomes what was originally
     *m_oldEntries[i] = tmp; // id becomes -1
   }
 }