/*
 * Software License Agreement (BSD License)
 *
 *  Point Cloud Library (PCL) - www.pointclouds.org
 *  Copyright (c) 2012, 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 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 <pcl/apps/modeler/thread_controller.h>

#include <pcl/apps/modeler/abstract_worker.h>
#include <pcl/apps/modeler/cloud_mesh_item.h>
#include <pcl/apps/modeler/main_window.h>


//////////////////////////////////////////////////////////////////////////////////////////////
pcl::modeler::ThreadController::ThreadController()
{

}

//////////////////////////////////////////////////////////////////////////////////////////////
pcl::modeler::ThreadController::~ThreadController(void)
{
  MainWindow::getInstance().slotOnWorkerFinished();
}

//////////////////////////////////////////////////////////////////////////////////////////////
bool
pcl::modeler::ThreadController::runWorker(AbstractWorker* worker)
{
  if (worker->exec() != QDialog::Accepted)
  {
    delete worker;
    deleteLater();

    return (false);
  }
  
  QThread* thread = new QThread;

  connect(this, SIGNAL(prepared()), worker, SLOT(process()));

  connect(worker, SIGNAL(finished()), worker, SLOT(deleteLater()));

  connect(worker, SIGNAL(finished()), thread, SLOT(quit()));
  connect(thread, SIGNAL(finished()), thread, SLOT(deleteLater()));

  connect(worker, SIGNAL(finished()), this, SLOT(deleteLater()));

  worker->moveToThread(thread);
  thread->start();

  MainWindow::getInstance().slotOnWorkerStarted();

  emit prepared();

   return (true);
}

//////////////////////////////////////////////////////////////////////////////////////////////
void
pcl::modeler::ThreadController::slotOnCloudMeshItemUpdate(CloudMeshItem* cloud_mesh_item)
{
  cloud_mesh_item->updateChannels();
}