visualizer_app.cpp

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/*
 * Copyright (c) 2008, Willow Garage, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Willow Garage, Inc. nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <wx/app.h>
#include <wx/timer.h>
#include "visualization_frame.h"
#include "generated/rviz_generated.h"
#include "wx_log_rosout.h"
#include <ogre_tools/initialization.h>

#include <ros/ros.h>

#include <boost/thread.hpp>
#include <boost/program_options.hpp>
#include <signal.h>

#include <OGRE/OgreHighLevelGpuProgramManager.h>
#include <std_srvs/Empty.h>

#ifdef __WXMAC__
#include <ApplicationServices/ApplicationServices.h>
// Apparently OSX #defines 'check' to be an empty string somewhere.  
// That was fun to figure out.
#undef check
#endif


namespace po = boost::program_options;

namespace rviz
{

bool reloadShaders(std_srvs::Empty::Request&, std_srvs::Empty::Response&)
{
  Ogre::ResourceManager::ResourceMapIterator it = Ogre::HighLevelGpuProgramManager::getSingleton().getResourceIterator();
  while (it.hasMoreElements())
  {
    Ogre::ResourcePtr resource = it.getNext();
    resource->reload();
  }
  return true;
}

class WaitForMasterDialog : public WaitForMasterDialogGenerated
{
public:
  WaitForMasterDialog(wxWindow* parent)
  : WaitForMasterDialogGenerated(parent, wxID_ANY)
  , timer_(this)
  {
    Connect(timer_.GetId(), wxEVT_TIMER, wxTimerEventHandler(WaitForMasterDialog::onTimer), NULL, this);
    timer_.Start(1000);

    const std::string& master_uri = ros::master::getURI();
    std::stringstream ss;
    ss << "Could not contact ROS master at [" << master_uri << "], retrying...";
    text_->SetLabel(wxString::FromAscii(ss.str().c_str()));
    Fit();
  }

  void onTimer(wxTimerEvent&)
  {
    if (ros::master::check())
    {
      EndModal(wxID_OK);
    }
  }

  void onCancel(wxCommandEvent&)
  {
    EndModal(wxID_CANCEL);
  }

  void onClose(wxCloseEvent&)
  {
    EndModal(wxID_CANCEL);
  }

private:
  wxTimer timer_;
};

class VisualizerApp : public wxApp
{
public:
  char** local_argv_;
  VisualizationFrame* frame_;
  volatile bool continue_;
  boost::thread signal_handler_thread_;
  wxTimer timer_;
  ros::NodeHandlePtr nh_;
  ros::ServiceServer reload_shaders_service_;

  VisualizerApp()
  : timer_(this)
  {
  }

  void onTimer(wxTimerEvent&)
  {
    if (!continue_)
    {
      frame_->Close();
    }
  }

  bool OnInit()
  {
#ifdef __WXMAC__
    ProcessSerialNumber PSN;
    GetCurrentProcess(&PSN);
    TransformProcessType(&PSN,kProcessTransformToForegroundApplication);
    SetFrontProcess(&PSN);
#endif

    wxLog::SetActiveTarget(new wxLogRosout());
    try
    {

      // create our own copy of argv, with regular char*s.
      local_argv_ =  new char*[ argc ];
      for ( int i = 0; i < argc; ++i )
      {
        local_argv_[ i ] = strdup( wxString( argv[ i ] ).mb_str() );
      }

      ros::init(argc, local_argv_, "rviz", ros::init_options::AnonymousName | ros::init_options::NoSigintHandler);

      po::options_description options;
      options.add_options()
               ("help,h", "Produce this help message")
               ("display-config,d", po::value<std::string>(), "A display config file (.vcg) to load")
               ("target-frame,t", po::value<std::string>(), "Set the target frame")
               ("fixed-frame,f", po::value<std::string>(), "Set the fixed frame")
               ("ogre-log,l", "Enable the Ogre.log file (output in cwd)");
      po::variables_map vm;
      std::string display_config, target_frame, fixed_frame;
      bool enable_ogre_log = false;
      try
      {
        po::store(po::parse_command_line(argc, local_argv_, options), vm);
        po::notify(vm);

        if (vm.count("help"))
        {
          std::cout << "rviz command line options:\n" << options;
          return false;
        }


        if (vm.count("display-config"))
        {
          display_config = vm["display-config"].as<std::string>();
        }

        if (vm.count("target-frame"))
        {
          target_frame = vm["target-frame"].as<std::string>();
        }

        if (vm.count("fixed-frame"))
        {
          fixed_frame = vm["fixed-frame"].as<std::string>();
        }

        if (vm.count("ogre-log"))
        {
          enable_ogre_log = true;
        }
      }
      catch (std::exception& e)
      {
        ROS_ERROR("Error parsing command line: %s", e.what());
        return false;
      }

      if (!ros::master::check())
      {
        WaitForMasterDialog d(0);
        if (d.ShowModal() != wxID_OK)
        {
          return false;
        }
      }

      // block kill signals on all threads, since this also disables signals in threads
      // created by this one (the main thread)
      sigset_t sig_set;
      sigemptyset(&sig_set);
      sigaddset(&sig_set, SIGKILL);
      sigaddset(&sig_set, SIGTERM);
      sigaddset(&sig_set, SIGQUIT);
      sigaddset(&sig_set, SIGINT);
      pthread_sigmask(SIG_BLOCK, &sig_set, NULL);

      // Start up our signal handler
      continue_ = true;
      signal_handler_thread_ = boost::thread(boost::bind(&VisualizerApp::signalHandler, this));

      nh_.reset(new ros::NodeHandle);
      ogre_tools::initializeOgre(enable_ogre_log);

      frame_ = new VisualizationFrame(NULL);
      frame_->initialize(display_config, fixed_frame, target_frame);

      SetTopWindow(frame_);
      frame_->Show();

      Connect(timer_.GetId(), wxEVT_TIMER, wxTimerEventHandler(VisualizerApp::onTimer), NULL, this);
      timer_.Start(100);

      ros::NodeHandle private_nh("~");
      reload_shaders_service_ = private_nh.advertiseService("reload_shaders", reloadShaders);

    }
    catch (std::exception& e)
    {
      ROS_ERROR("Caught exception while loading: %s", e.what());
      return false;
    }

    return true;
  }

  int OnExit()
  {
    timer_.Stop();
    continue_ = false;

    raise(SIGQUIT);

    signal_handler_thread_.join();

    for ( int i = 0; i < argc; ++i )
    {
      free( local_argv_[ i ] );
    }
    delete [] local_argv_;

    ogre_tools::cleanupOgre();

    return 0;
  }

  void signalHandler()
  {
    sigset_t signal_set;
    while(continue_)
    {
      // Wait for any signals
      sigfillset(&signal_set);

#if defined(__WXMAC__)
      int sig;
      sigwait(&signal_set, &sig);
#else
      struct timespec ts = {0, 100000000};
      int sig = sigtimedwait(&signal_set, NULL, &ts);
#endif

      switch( sig )
      {
      case SIGKILL:
      case SIGTERM:
      case SIGQUIT:
      {
        exit(1);
      }
      break;

      case SIGINT:
      {
        ros::shutdown();
        continue_ = false;
        return;
      }
      break;

      default:
        break;
      }
    }
  }
};

DECLARE_APP(VisualizerApp);

} // namespace rviz


IMPLEMENT_APP(rviz::VisualizerApp);

---

rviz
Author(s): Josh Faust
autogenerated on Fri Jan 11 09:35:56 2013