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

 /***************************************************************************
     Copyright (C) 2005-2009 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 "fieldcommand.h"
 #include "../collection.h"
 #include "../controller.h"
 #include "../tellico_debug.h"
 
 #include <KLocalizedString>
 
 using Tellico::Command::FieldCommand;
 
 FieldCommand::FieldCommand(Mode mode_, Tellico::Data::CollPtr coll_,
                            Tellico::Data::FieldPtr activeField_, Tellico::Data::FieldPtr oldField_/*=0*/)
     : QUndoCommand()
     , m_mode(mode_)
     , m_coll(coll_)
     , m_activeField(activeField_)
     , m_oldField(oldField_)
 {
   init();
 }
 
 FieldCommand::FieldCommand(QUndoCommand* parent, Mode mode_, Tellico::Data::CollPtr coll_,
                            Tellico::Data::FieldPtr activeField_, Tellico::Data::FieldPtr oldField_/*=0*/)
     : QUndoCommand(parent)
     , m_mode(mode_)
     , m_coll(coll_)
     , m_activeField(activeField_)
     , m_oldField(oldField_)
 {
   init();
 }
 
 void FieldCommand::init() {
   switch(m_mode) {
     case FieldAdd:
       setText(i18n("Add %1 Field", m_activeField->title()));
       break;
     case FieldModify:
       setText(i18n("Modify %1 Field", m_activeField->title()));
       break;
     case FieldRemove:
       setText(i18n("Delete %1 Field", m_activeField->title()));
       break;
   }
 
   if(!m_coll) {
     myDebug() << "null collection pointer";
   } else if(!m_activeField) {
     myDebug() << "null active field pointer";
   }
 #ifndef NDEBUG
 // just some sanity checking
   if(m_mode == FieldAdd && m_oldField) {
     myDebug() << "adding field, but pointers are wrong";
   } else if(m_mode == FieldModify && !m_oldField) {
     myDebug() << "modifying field, but pointers are wrong";
   } else if(m_mode == FieldRemove && m_oldField) {
     myDebug() << "removing field, but pointers are wrong";
   }
 #endif
 }
 
 void FieldCommand::redo() {
   if(!m_coll || !m_activeField) {
     return;
   }
 
   switch(m_mode) {
     case FieldAdd:
       // if there's currently a field in the collection with the same name, it will get overwritten
       // so save a pointer to it here, the collection should not delete it
       m_oldField = m_coll->fieldByName(m_activeField->name());
       m_coll->addField(m_activeField);
       Controller::self()->addedField(m_coll, m_activeField);
       break;
 
     case FieldModify:
       m_coll->modifyField(m_activeField);
       Controller::self()->modifiedField(m_coll, m_oldField, m_activeField);
       break;
 
     case FieldRemove:
       m_coll->removeField(m_activeField);
       Controller::self()->removedField(m_coll, m_activeField);
       break;
   }
 }
 
 void FieldCommand::undo() {
   if(!m_coll || !m_activeField) {
     return;
   }
 
   switch(m_mode) {
     case FieldAdd:
       m_coll->removeField(m_activeField);
       Controller::self()->removedField(m_coll, m_activeField);
       if(m_oldField) {
         m_coll->addField(m_oldField);
         Controller::self()->addedField(m_coll, m_oldField);
       }
       break;
 
     case FieldModify:
       m_coll->modifyField(m_oldField);
       Controller::self()->modifiedField(m_coll, m_activeField, m_oldField);
       break;
 
     case FieldRemove:
       m_coll->addField(m_activeField);
       Controller::self()->addedField(m_coll, m_activeField);
       break;
   }
 }