/*
*  Copyright 2018  Michail Vourlakos <mvourlakos@gmail.com>
*
*  This file is part of Latte-Dock
*
*  Latte-Dock 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.
*
*  Latte-Dock 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/>.
*/

#ifndef PLASMABACKGROUNDCACHE_H
#define PLASMABACKGROUNDCACHE_H

// local
#include "screenpool.h"

// Qt
#include <QHash>
#include <QObject>

// Plasma
#include <Plasma>

typedef QHash<Plasma::Types::Location, float> EdgesHash;

namespace Latte {
namespace PlasmaExtended {

class BackgroundCache: public QObject
{
    Q_OBJECT

public:
    static BackgroundCache *self();
    ~BackgroundCache() override;

    float luminasFromFile(QString imageFile, int edge);

private:
    BackgroundCache(QObject *parent = nullptr);

private:
    //! screen aware backgrounds: activity id, screen name, backgroundfile
    QHash<QString, QHash<QString, QString>> m_backgrounds;

    //! image file and luminas per edge
    QHash<QString, EdgesHash> m_luminasCache;

    ScreenPool *m_pool{nullptr};
};

}
}

#endif