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/*
* This file is part of the PulseView project.
*
* Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include <cassert>
#include <QDebug>
#include <QDoubleSpinBox>
#include <libsigrokcxx/libsigrokcxx.hpp>
#include "double.hpp"
using boost::optional;
using std::pair;
namespace pv {
namespace prop {
Double::Double(QString name,
QString desc,
int decimals,
QString suffix,
optional< pair<double, double> > range,
optional<double> step,
Getter getter,
Setter setter) :
Property(name, desc, getter, setter),
decimals_(decimals),
suffix_(suffix),
range_(range),
step_(step),
spin_box_(nullptr)
{
}
QWidget* Double::get_widget(QWidget *parent, bool auto_commit)
{
if (spin_box_)
return spin_box_;
if (!getter_)
return nullptr;
try {
Glib::VariantBase variant = getter_();
if (!variant.gobj())
return nullptr;
} catch (const sigrok::Error &e) {
qWarning() << tr("Querying config key %1 resulted in %2").arg(name_, e.what());
return nullptr;
}
spin_box_ = new QDoubleSpinBox(parent);
spin_box_->setDecimals(decimals_);
spin_box_->setSuffix(suffix_);
if (range_)
spin_box_->setRange(range_->first, range_->second);
if (step_)
spin_box_->setSingleStep(*step_);
update_widget();
if (auto_commit)
connect(spin_box_, SIGNAL(valueChanged(double)),
this, SLOT(on_value_changed(double)));
return spin_box_;
}
void Double::update_widget()
{
if (!spin_box_)
return;
Glib::VariantBase variant;
try {
variant = getter_();
} catch (const sigrok::Error &e) {
qWarning() << tr("Querying config key %1 resulted in %2").arg(name_, e.what());
return;
}
assert(variant.gobj());
double value = Glib::VariantBase::cast_dynamic<Glib::Variant<double>>(
variant).get();
spin_box_->setValue(value);
}
void Double::commit()
{
assert(setter_);
if (!spin_box_)
return;
setter_(Glib::Variant<double>::create(spin_box_->value()));
}
void Double::on_value_changed(double)
{
commit();
}
} // namespace prop
} // namespace pv
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