File indexing completed on 2024-05-12 16:46:11

 /***************************************************************************
     Copyright (C) 2007-2009 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 "fieldcomparison.h"
 #include "stringcomparison.h"
 #include "../field.h"
 #include "../collection.h"
 #include "../images/imagefactory.h"
 #include "../images/image.h"
 #include "../tellico_debug.h"
 
 #include <QDateTime>
 
 using namespace Tellico;
 
 Tellico::FieldComparison* Tellico::FieldComparison::create(Data::FieldPtr field_) {
   if(!field_) {
 //    myWarning() << "No field for creating a field comparison";
     return nullptr;
   }
   if(field_->type() == Data::Field::Image) {
     return new ImageComparison(field_);
   } else if(field_->type() == Data::Field::Choice) {
     return new ChoiceComparison(field_);
   }
   return new ValueComparison(field_, StringComparison::create(field_));
 }
 
 Tellico::FieldComparison::FieldComparison(Data::FieldPtr field_) : m_field(field_) {
 }
 
 int Tellico::FieldComparison::compare(Data::EntryPtr entry1_, Data::EntryPtr entry2_) {
   return compare(entry1_->formattedField(m_field), entry2_->formattedField(m_field));
 }
 
 Tellico::ValueComparison::ValueComparison(Data::FieldPtr field, StringComparison* comp)
     : FieldComparison(field)
     , m_stringComparison(comp) {
   Q_ASSERT(comp);
 }
 
 Tellico::ValueComparison::~ValueComparison() {
   delete m_stringComparison;
 }
 
 int Tellico::ValueComparison::compare(const QString& str1_, const QString& str2_) {
   return m_stringComparison->compare(str1_, str2_);
 }
 
 Tellico::ImageComparison::ImageComparison(Data::FieldPtr field) : FieldComparison(field) {
 }
 
 int Tellico::ImageComparison::compare(const QString& str1_, const QString& str2_) {
   if(str1_.isEmpty()) {
     if(str2_.isEmpty()) {
       return 0;
     }
     return -1;
   }
   if(str2_.isEmpty()) {
     return 1;
   }
 
   const Data::Image& image1 = ImageFactory::imageById(str1_);
   const Data::Image& image2 = ImageFactory::imageById(str2_);
   if(image1.isNull()) {
     if(image2.isNull()) {
       return 0;
     }
     return -1;
   }
   if(image2.isNull()) {
     return 1;
   }
   // large images come first
   return image1.width() - image2.width();
 }
 
 Tellico::ChoiceComparison::ChoiceComparison(Data::FieldPtr field) : FieldComparison(field) {
   m_values = field->allowed();
 }
 
 int Tellico::ChoiceComparison::compare(const QString& str1, const QString& str2) {
   return m_values.indexOf(str1) - m_values.indexOf(str2);
 }