File indexing completed on 2024-05-12 05:09:51

 /***************************************************************************
     Copyright (C) 2017 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 "entryiconmodel.h"
 #include "models.h"
 #include "../collectionfactory.h"
 #include "../config/tellico_config.h"
 #include "../tellico_debug.h"
 
 #include <QIcon>
 #include <QPixmap>
 
 using namespace Tellico;
 using Tellico::EntryIconModel;
 
 EntryIconModel::EntryIconModel(QObject* parent_) : QIdentityProxyModel(parent_) {
   m_iconCache.setMaxCost(Config::iconCacheSize());
 }
 
 EntryIconModel::~EntryIconModel() {
   qDeleteAll(m_defaultIcons);
 }
 
 void EntryIconModel::setSourceModel(QAbstractItemModel* newSourceModel_) {
   QIdentityProxyModel::setSourceModel(newSourceModel_);
   if(newSourceModel_) {
     connect(newSourceModel_, &QAbstractItemModel::modelReset, this, &EntryIconModel::clearCache);
   }
 }
 
 QVariant EntryIconModel::data(const QModelIndex& index_, int role_) const {
   switch(role_) {
     // this IdentityModel serves to return the entry's primary image as the DecorationRole
     // no matter what the index column may be
     case Qt::DecorationRole:
     {
       Data::EntryPtr entry = index_.data(EntryPtrRole).value<Data::EntryPtr>();
       if(!entry) {
         return QVariant();
       }
 
       // return entry primary image in this case
       Data::FieldPtr field = entry->collection()->primaryImageField();
       if(!field) {
         return defaultIcon(entry->collection());
       }
       const QString id = entry->field(field);
       if(m_iconCache.contains(id)) {
         return QIcon(*m_iconCache.object(id));
       }
 
       QVariant v = QIdentityProxyModel::data(index_, PrimaryImageRole);
       if(v.isNull() || !v.canConvert<QPixmap>()) {
         return defaultIcon(entry->collection());
       }
 
       const QPixmap p = v.value<QPixmap>();
       QIcon* icon = new QIcon(p);
       if(!m_iconCache.insert(id, icon)) {
         // failing to insert invalidates the icon pointer
         myDebug() << "failed to insert into icon cache";
         return QIcon(p);
       }
       return QIcon(*icon);
     }
   }
 
   return QIdentityProxyModel::data(index_, role_);
 }
 
 void EntryIconModel::clearCache() {
   m_iconCache.clear();
 }
 
 const QIcon& EntryIconModel::defaultIcon(Data::CollPtr coll_) const {
   QIcon* icon = m_defaultIcons.value(coll_->type());
   if(icon) {
     return *icon;
   }
   QIcon tmpIcon = QIcon(QLatin1String(":/icons/nocover_") + CollectionFactory::typeName(coll_->type()));
   // apparently, for a resource icon that doesn't exist, it may not be null, but just have no available sizes
   if(tmpIcon.isNull() || tmpIcon.availableSizes().isEmpty()) {
 //    myLog() << "null nocover image, loading tellico.png";
     tmpIcon = QIcon::fromTheme(QStringLiteral("tellico"), QIcon(QLatin1String(":/icons/tellico")));
   }
 
   icon = new QIcon(tmpIcon);
   m_defaultIcons.insert(coll_->type(), icon);
   return *icon;
 }