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/************************************************************************
*
* Copyright (C) 2017-2023 IRCAD France
* Copyright (C) 2017-2020 IHU Strasbourg
*
* This file is part of Sight.
*
* Sight is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Sight 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Sight. If not, see <https://www.gnu.org/licenses/>.
*
***********************************************************************/
#include "list_view.hpp"
#include <core/base.hpp>
#include <core/com/signal.hxx>
#include <core/com/slots.hxx>
#include <service/macros.hpp>
#include <ui/qt/container/widget.hpp>
#include <QEvent>
#include <QHBoxLayout>
#include <QKeyEvent>
namespace sight::module::ui::qt
{
const core::com::signals::key_t list_view::ITEM_ADDED_SIG = "itemAdded";
const core::com::signals::key_t list_view::ITEM_REMOVED_SIG = "itemRemoved";
const core::com::signals::key_t list_view::ITEM_DOUBLE_CLICKED_SIG = "itemDoubleClicked";
const core::com::slots::key_t list_view::INSERT_ITEM_SLOT = "insertItem";
const core::com::slots::key_t list_view::REMOVE_ITEM_SLOT = "removeItem";
//------------------------------------------------------------------------------
list_view::list_view() noexcept
{
new_signal<item_added_signal_t>(ITEM_ADDED_SIG);
new_signal<item_removed_signal_t>(ITEM_REMOVED_SIG);
new_signal<item_double_clicked_signal_t>(ITEM_DOUBLE_CLICKED_SIG);
new_slot(INSERT_ITEM_SLOT, &list_view::insert_item, this);
new_slot(REMOVE_ITEM_SLOT, &list_view::remove_item, this);
}
//------------------------------------------------------------------------------
list_view::~list_view() noexcept =
default;
//------------------------------------------------------------------------------
bool list_view::eventFilter(QObject* _watched, QEvent* _event)
{
// filter "del" key release event in order to delete the current selected item of the list.
if(_watched == m_list_widget && _event->type() == QEvent::KeyRelease)
{
auto* event_key = static_cast<QKeyEvent*>(_event);
if(event_key->key() == Qt::Key_Delete)
{
const QList<QListWidgetItem*>& list_item = m_list_widget->selectedItems();
if(!list_item.empty())
{
this->remove_item(m_list_widget->row(list_item.first()));
return true;
}
}
}
return false;
}
//------------------------------------------------------------------------------
void list_view::configuring()
{
this->initialize();
}
//------------------------------------------------------------------------------
void list_view::starting()
{
this->create();
auto qt_container = std::dynamic_pointer_cast<sight::ui::qt::container::widget>(this->get_container());
QPointer<QHBoxLayout> layout = new QHBoxLayout();
layout->setObjectName("list_viewLayout");
m_list_widget = new(QListWidget);
m_list_widget->setObjectName("list_viewWidget");
m_list_widget->installEventFilter(this);
layout->addWidget(m_list_widget);
connect(m_list_widget, &QListWidget::itemDoubleClicked, this, &self_t::on_item_double_clicked);
qt_container->set_layout(layout);
}
//------------------------------------------------------------------------------
void list_view::stopping()
{
this->destroy();
}
//------------------------------------------------------------------------------
void list_view::updating()
{
}
//------------------------------------------------------------------------------
void list_view::insert_item(int _index, std::string _value)
{
// insert item at the index position of the list
auto* new_item = new QListWidgetItem(QString::fromStdString(_value));
m_list_widget->insertItem(_index, new_item);
// notify
this->signal<item_added_signal_t>(ITEM_ADDED_SIG)->async_emit(_index);
}
//------------------------------------------------------------------------------
void list_view::remove_item(int _index)
{
// remove item at index position
delete m_list_widget->takeItem(_index);
// notify
this->signal<item_removed_signal_t>(ITEM_REMOVED_SIG)->async_emit(_index);
}
//------------------------------------------------------------------------------
void list_view::on_item_double_clicked(QListWidgetItem* _item)
{
const int index = m_list_widget->row(_item);
this->signal<item_double_clicked_signal_t>(ITEM_DOUBLE_CLICKED_SIG)->async_emit(index);
}
//------------------------------------------------------------------------------
} //namespace sight::module::ui::qt
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