qTox/src/chatlog/pixmapcache.cpp

/*
    Copyright © 2014-2019 by The qTox Project Contributors

    This file is part of qTox, a Qt-based graphical interface for Tox.

    qTox is libre 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 3 of the License, or
    (at your option) any later version.

    qTox 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 qTox.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "pixmapcache.h"

QPixmap PixmapCache::get(const QString& filename, QSize size)
{
    auto itr = cache.find(filename);

    if (itr == cache.end()) {
        QIcon icon;
        icon.addFile(filename);

        cache.insert(filename, icon);
        return icon.pixmap(size);
    }

    return itr.value().pixmap(size);
}

/**
 * @brief Returns the singleton instance.
 */
PixmapCache& PixmapCache::getInstance()
{
    static PixmapCache instance;
    return instance;
}