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DSView/DSLogic-gui/pv/prop/enum.cpp
DreamSourceLab 9eb36b33b9 v0.4 release
2014-09-24 18:43:42 +08:00

101 lines
2.4 KiB
C++

/*
* This file is part of the DSLogic-gui project.
* DSLogic-gui is based on PulseView.
*
* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
* Copyright (C) 2013 DreamSourceLab <dreamsourcelab@dreamsourcelab.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; 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 <QComboBox>
#include "enum.h"
using namespace boost;
using namespace std;
namespace pv {
namespace prop {
Enum::Enum(QString name,
vector<pair<GVariant*, QString> > values,
Getter getter, Setter setter) :
Property(name, getter, setter),
_values(values),
_selector(NULL)
{
for (vector< pair<GVariant*, QString> >::const_iterator i =
_values.begin(); i != _values.end(); i++)
g_variant_ref((*i).first);
}
Enum::~Enum()
{
for (unsigned int i = 0; i < _values.size(); i++)
g_variant_unref(_values[i].first);
}
QWidget* Enum::get_widget(QWidget *parent, bool auto_commit)
{
if (_selector)
return _selector;
GVariant *const value = _getter ? _getter() : NULL;
if (!value)
return NULL;
_selector = new QComboBox(parent);
for (unsigned int i = 0; i < _values.size(); i++) {
const pair<GVariant*, QString> &v = _values[i];
_selector->addItem(v.second, qVariantFromValue((void*)v.first));
if (value && g_variant_compare(v.first, value) == 0)
_selector->setCurrentIndex(i);
}
g_variant_unref(value);
if (auto_commit)
connect(_selector, SIGNAL(currentIndexChanged(int)),
this, SLOT(on_current_item_changed(int)));
return _selector;
}
void Enum::commit()
{
assert(_setter);
if (!_selector)
return;
const int index = _selector->currentIndex();
if (index < 0)
return;
_setter((GVariant*)_selector->itemData(index).value<void*>());
}
void Enum::on_current_item_changed(int)
{
commit();
}
} // prop
} // pv