ros_topic_property.cpp

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/*
 * Copyright (c) 2012, Willow Garage, Inc.
 * All rights reserved.
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 *       this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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#include "ros/master.h"
 
#include <rviz/properties/ros_topic_property.h>
 
#include <QApplication>
 
 
namespace rviz
{
RosTopicProperty::RosTopicProperty(const QString& name,
                                   const QString& default_value,
                                   const QString& message_type,
                                   const QString& description,
                                   Property* parent)
  : EditableEnumProperty(name, default_value, description, parent), message_type_(message_type)
{
  connect(this, &EditableEnumProperty::requestOptions, this, &RosTopicProperty::fillTopicList);
}
 
void RosTopicProperty::setMessageType(const QString& message_type)
{
  message_type_ = message_type;
}
 
void RosTopicProperty::fillTopicList()
{
  QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
  clearOptions();
 
  std::string std_message_type = message_type_.toStdString();
 
  ros::master::V_TopicInfo topics;
  ros::master::getTopics(topics);
 
  // Loop through all published topics
  ros::master::V_TopicInfo::iterator it;
  for (it = topics.begin(); it != topics.end(); ++it)
  {
    const ros::master::TopicInfo& topic = *it;
 
    // Only add topics whose type matches.
    if (topic.datatype == std_message_type)
    {
      addOptionStd(topic.name);
    }
  }
  sortOptions();
  QApplication::restoreOverrideCursor();
}
 
} // end namespace rviz