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54 lines
2.2 KiB
C++
54 lines
2.2 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2024 Jon Beniston, M7RCE <jon@beniston.com> //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include "wrappingspinbox.h"
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#include <QWheelEvent>
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WrappingSpinBox::WrappingSpinBox(QWidget *parent) :
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QSpinBox(parent),
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m_wheelEvent(false),
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m_wheelUp(false)
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{
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setWrapping(true);
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}
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void WrappingSpinBox::stepBy(int steps)
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{
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int v = value();
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QSpinBox::stepBy(steps);
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if (wrapping())
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{
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if (v + steps > maximum()) {
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emit wrapUp();
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}
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if (v + steps < minimum()) {
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emit wrapDown();
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}
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}
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}
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// QAbstractSlider just generates SliderMove actions for wheel events, so we can't distinguish between
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// wheel and dial being clicked to a new position - so we set a flag here, before passing up the event
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void WrappingSpinBox::wheelEvent(QWheelEvent *e)
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{
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m_wheelEvent = true;
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m_wheelUp = e->angleDelta().y() > 0;
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QSpinBox::wheelEvent(e);
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m_wheelEvent = false;
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}
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