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sdrangel/sdrgui/gui/perioddial.cpp
2024-09-22 15:11:58 +01:00

126 lines
4.1 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 <cmath>
#include "perioddial.h"
#include "wrappingdial.h"
#include "wrappingspinbox.h"
#include <QComboBox>
#include <QHBoxLayout>
PeriodDial::PeriodDial(QWidget *parent) :
QWidget(parent)
{
m_layout = new QHBoxLayout(this);
m_layout->setContentsMargins(0, 0, 0, 0);
m_dial = new WrappingDial();
m_dial->setMinimum(1);
m_dial->setMaximum(999);
m_dial->setMaximumSize(24, 24);
m_spinBox = new WrappingSpinBox();
m_spinBox->setMinimum(1);
m_spinBox->setMaximum(999);
m_spinBox->setButtonSymbols(QAbstractSpinBox::NoButtons);
m_units = new QComboBox();
m_units->addItem(QString("%1s").arg(QChar(0x3bc)));
m_units->addItem("ms");
m_units->addItem("s");
m_layout->addWidget(m_dial);
m_layout->addWidget(m_spinBox);
m_layout->addWidget(m_units);
connect(m_dial, &WrappingDial::valueChanged, this, &PeriodDial::on_dial_valueChanged);
connect(m_dial, &WrappingDial::wrapUp, this, &PeriodDial::on_wrapUp);
connect(m_dial, &WrappingDial::wrapDown, this, &PeriodDial::on_wrapDown);
connect(m_spinBox, QOverload<int>::of(&WrappingSpinBox::valueChanged), this, &PeriodDial::on_spinBox_valueChanged);
connect(m_spinBox, &WrappingSpinBox::wrapUp, this, &PeriodDial::on_wrapUp);
connect(m_spinBox, &WrappingSpinBox::wrapDown, this, &PeriodDial::on_wrapDown);
connect(m_units, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &PeriodDial::on_units_currentIndexChanged);
}
void PeriodDial::on_dial_valueChanged(int dialValue)
{
m_spinBox->setValue(dialValue);
emit valueChanged(value());
}
void PeriodDial::on_spinBox_valueChanged(int boxValue)
{
m_dial->setValue(boxValue);
}
void PeriodDial::on_units_currentIndexChanged(int index)
{
(void) index;
emit valueChanged(value());
}
void PeriodDial::on_wrapUp()
{
int index = m_units->currentIndex();
if (index < m_units->count() - 1) {
m_units->setCurrentIndex(index + 1);
}
}
void PeriodDial::on_wrapDown()
{
int index = m_units->currentIndex();
if (index > 0) {
m_units->setCurrentIndex(index - 1);
}
}
void PeriodDial::setValue(double newValue)
{
double oldValue = value();
int index;
if (newValue < 1e-3) {
index = 0;
} else if (newValue < 1.0) {
index = 1;
} else {
index = 2;
}
double scale = std::pow(10.0, 3 * (2 - index));
int mantissa = std::round(newValue * scale);
bool blocked = blockSignals(true);
m_dial->setValue(mantissa);
m_units->setCurrentIndex(index);
blockSignals(blocked);
if (newValue != oldValue) {
emit valueChanged(value());
}
}
double PeriodDial::value()
{
int index = -3 * (2 - m_units->currentIndex()); // 0=s -3=ms -6=us
double scale = std::pow(10.0, index);
int mantissa = m_dial->value();
return mantissa * scale;
}