qBittorrent/src/gui/utils.h

/*
 * Bittorrent Client using Qt and libtorrent.
 * Copyright (C) 2017  Mike Tzou
 *
 * 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) any later version.
 *
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * In addition, as a special exception, the copyright holders give permission to
 * link this program with the OpenSSL project's "OpenSSL" library (or with
 * modified versions of it that use the same license as the "OpenSSL" library),
 * and distribute the linked executables. You must obey the GNU General Public
 * License in all respects for all of the code used other than "OpenSSL".  If you
 * modify file(s), you may extend this exception to your version of the file(s),
 * but you are not obligated to do so. If you do not wish to do so, delete this
 * exception statement from your version.
 */

#ifndef UTILS_GUI_H
#define UTILS_GUI_H

#include <QtGlobal>
#include <QPixmap>
#include <QSize>

class QIcon;
class QWidget;

namespace Utils
{
    namespace Gui
    {
        void resize(QWidget *widget, const QSize &newSize = {});
        qreal screenScalingFactor(const QWidget *widget);

        template <typename T>
        T scaledSize(const QWidget *widget, const T &size)
        {
            return (size * screenScalingFactor(widget));
        }

        QPixmap scaledPixmap(const QIcon &icon, const QWidget *widget, int height);
        QPixmap scaledPixmap(const QString &path, const QWidget *widget, int height = 0);
        QPixmap scaledPixmapSvg(const QString &path, const QWidget *widget, int baseHeight);
        QSize smallIconSize(const QWidget *widget = nullptr);
        QSize mediumIconSize(const QWidget *widget = nullptr);
        QSize largeIconSize(const QWidget *widget = nullptr);
    }
}

#endif  // UTILS_GUI_H