bool.cpp

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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, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#include <assert.h>

#include <QCheckBox>

#include "bool.hpp"

namespace pv {
namespace prop {

Bool::Bool(QString name, Getter getter, Setter setter) :
    Property(name, getter, setter),
    check_box_(nullptr)
{
}

Bool::~Bool()
{
}

QWidget* Bool::get_widget(QWidget *parent, bool auto_commit)
{
    if (check_box_)
        return check_box_;

    if (!getter_)
        return nullptr;

    Glib::VariantBase variant = getter_();
    if (!variant.gobj())
        return nullptr;

    bool value = Glib::VariantBase::cast_dynamic<Glib::Variant<bool>>(
        variant).get();

    check_box_ = new QCheckBox(name(), parent);
    check_box_->setCheckState(value ? Qt::Checked : Qt::Unchecked);

    if (auto_commit)
        connect(check_box_, SIGNAL(stateChanged(int)),
            this, SLOT(on_state_changed(int)));

    return check_box_;
}

bool Bool::labeled_widget() const
{
    return true;
}

void Bool::commit()
{
    assert(setter_);

    if (!check_box_)
        return;

    setter_(Glib::Variant<bool>::create(
        check_box_->checkState() == Qt::Checked));
}

void Bool::on_state_changed(int)
{
    commit();
}

} // prop
} // pv