pxmlw6n2f/Gazebo_Distributed_TCP/gazebo/gui/LayersWidget.cc

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2019-03-28 10:57:49 +08:00
/*
* Copyright (C) 2015 Open Source Robotics Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include <sstream>
#include "gazebo/rendering/RenderEvents.hh"
#include "gazebo/gui/LayersWidgetPrivate.hh"
#include "gazebo/gui/LayersWidget.hh"
using namespace gazebo;
using namespace gui;
/////////////////////////////////////////////////
LayersWidget::LayersWidget(QWidget *_parent)
: QWidget(_parent), dataPtr(new LayersWidgetPrivate)
{
this->setObjectName("layersList");
QVBoxLayout *mainLayout = new QVBoxLayout;
this->dataPtr->layerList = new QListWidget(this);
mainLayout->addWidget(this->dataPtr->layerList);
this->setLayout(mainLayout);
this->layout()->setContentsMargins(0, 0, 0, 0);
connect(this->dataPtr->layerList, SIGNAL(itemChanged(QListWidgetItem *)),
this, SLOT(OnLayerSelected(QListWidgetItem *)));
this->dataPtr->connections.push_back(
rendering::Events::ConnectNewLayer(
boost::bind(&LayersWidget::OnNewLayer, this, _1)));
}
/////////////////////////////////////////////////
LayersWidget::~LayersWidget()
{
delete this->dataPtr;
this->dataPtr = NULL;
}
/////////////////////////////////////////////////
void LayersWidget::OnLayerSelected(QListWidgetItem *_layer)
{
rendering::Events::toggleLayer(_layer->data(Qt::UserRole).toInt());
}
/////////////////////////////////////////////////
void LayersWidget::OnNewLayer(const int32_t _layer)
{
std::ostringstream stream;
stream << "Layer " << _layer;
auto found = this->dataPtr->layerList->findItems(stream.str().c_str(),
Qt::MatchExactly);
// Only add layers that do not already exist.
if (found.empty())
{
// Disconnect temporarily to prevent bad signals
disconnect(this->dataPtr->layerList, SIGNAL(itemChanged(QListWidgetItem *)),
this, SLOT(OnLayerSelected(QListWidgetItem *)));
QListWidgetItem *item = new QListWidgetItem(stream.str().c_str(),
this->dataPtr->layerList);
item->setCheckState(Qt::Checked);
item->setData(Qt::UserRole, QVariant(_layer));
item->setFlags(item->flags() | Qt::ItemIsUserCheckable);
this->dataPtr->layerList->addItem(item);
// Reconnect.
connect(this->dataPtr->layerList, SIGNAL(itemChanged(QListWidgetItem *)),
this, SLOT(OnLayerSelected(QListWidgetItem *)));
}
}