mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-25 17:28:50 -05:00
64 lines
2.7 KiB
C++
64 lines
2.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2024 Jon Beniston, M7RCE <jon@beniston.com> //
|
|
// //
|
|
// 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 as version 3 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 V3 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/>. //
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "wrappingdial.h"
|
|
|
|
#include <QWheelEvent>
|
|
|
|
WrappingDial::WrappingDial(QWidget *parent) :
|
|
QDial(parent),
|
|
m_wheelEvent(false),
|
|
m_wheelUp(false)
|
|
{
|
|
setWrapping(true);
|
|
|
|
connect(this, &QDial::actionTriggered, this, &WrappingDial::on_actionTriggered);
|
|
}
|
|
|
|
void WrappingDial::on_actionTriggered(int action)
|
|
{
|
|
if (wrapping())
|
|
{
|
|
if ( ( (action == QAbstractSlider::SliderSingleStepSub)
|
|
|| (action == QAbstractSlider::SliderPageStepSub)
|
|
|| ((action == QAbstractSlider::SliderMove) && m_wheelEvent && !m_wheelUp)
|
|
)
|
|
&& (value() < sliderPosition()))
|
|
{
|
|
emit wrapDown();
|
|
}
|
|
if ( ( (action == QAbstractSlider::SliderSingleStepAdd)
|
|
|| (action == QAbstractSlider::SliderPageStepAdd)
|
|
|| ((action == QAbstractSlider::SliderMove) && m_wheelEvent && m_wheelUp)
|
|
)
|
|
&& (value() > sliderPosition()))
|
|
{
|
|
emit wrapUp();
|
|
}
|
|
}
|
|
}
|
|
|
|
// QAbstractSlider just generates SliderMove actions for wheel events, so we can't distinguish between
|
|
// wheel and dial being clicked to a new position - so we set a flag here, before passing up the event
|
|
void WrappingDial::wheelEvent(QWheelEvent *e)
|
|
{
|
|
m_wheelEvent = true;
|
|
m_wheelUp = e->angleDelta().y() > 0;
|
|
QDial::wheelEvent(e);
|
|
m_wheelEvent = false;
|
|
}
|