/*
 * Copyright (C) Pedram Pourang (aka Tsu Jan) 2014-2019 <tsujan2000@gmail.com>
 *
 * FeatherPad 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 3 of the License, or
 * (at your option) any later version.
 *
 * FeatherPad 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/>.
 *
 * @license GPL-3.0+ <https://spdx.org/licenses/GPL-3.0+.html>
 */

#include "vscrollbar.h"
#include <QEvent>
#include <QApplication>

namespace FeatherPad {

VScrollBar::VScrollBar (QWidget *parent)
    : QScrollBar (parent)
{
    defaultWheelSpeed = QApplication::wheelScrollLines();
    if (defaultWheelSpeed == 0) // in case something's wrong
        defaultWheelSpeed = 3;
}
/*************************/
bool VScrollBar::event (QEvent *event)
{
    if (event->type() == QEvent::Enter)
        QApplication::setWheelScrollLines (102);
    else if (event->type() == QEvent::Leave
             /* Apparently, the Qt5 hover bug is never going to be fixed! */
             || (QApplication::wheelScrollLines() != defaultWheelSpeed
                 && !rect().contains (mapFromGlobal (QCursor::pos()))))
    {
        QApplication::setWheelScrollLines (defaultWheelSpeed);
    }

    return QScrollBar::event (event);
}

}
