elementscollectioncache.h

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/*
        Copyright 2006-2020 The QElectroTech Team
        This file is part of QElectroTech.
        
        QElectroTech 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) any later version.
        
        QElectroTech 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 QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ELEMENTS_COLLECTION_CACHE_H
#define ELEMENTS_COLLECTION_CACHE_H
 
#include <QSqlDatabase>
#include "elementslocation.h"
 
class ElementsCollectionCache : public QObject
{
        public:
        // constructor, destructor
        ElementsCollectionCache(const QString &database_path,
                                QObject * = nullptr);
        ~ElementsCollectionCache() override;
        
        // methods
        public:
        void setLocale(const QString &);
        QString locale() const;
        bool setPixmapStorageFormat(const QString &);
        QString pixmapStorageFormat() const;
        bool fetchElement(ElementsLocation &location);
        QString name() const;
        QPixmap pixmap() const;
        bool fetchData(const ElementsLocation &);
        bool fetchNameFromCache(const QString &path, const QUuid &uuid);
        bool fetchPixmapFromCache(const QString &path, const QUuid &uuid);
        bool cacheName(const QString &path,
                       const QUuid &uuid = QUuid::createUuid());
        bool cachePixmap(const QString &path,
                         const QUuid &uuid = QUuid::createUuid());
        
        // attributes
        private:
        QSqlDatabase cache_db_;         
        QSqlQuery *select_name_;        
        QSqlQuery *select_pixmap_;      
        QSqlQuery *insert_name_;        
        QSqlQuery *insert_pixmap_;      
        QString locale_;                
        QString pixmap_storage_format_; 
        QString current_name_;          
        QPixmap current_pixmap_;        
};
#endif