/*
 * 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.
 *
 */

#ifndef PCL_MODELER_MAIN_WINDOW_H_
#define PCL_MODELER_MAIN_WINDOW_H_

#include <pcl/apps/modeler/qt.h>
#include <boost/shared_ptr.hpp>

#include <ui_main_window.h>


namespace pcl
{
  namespace modeler
  {
    class SceneTree;
    class AbstractItem;

    class MainWindow : public QMainWindow
    {
      Q_OBJECT

      public:
        static MainWindow& getInstance() {
          static MainWindow theSingleton;
          return theSingleton;
        }

        QString 
        getRecentFolder();

        RenderWindowItem*
        createRenderWindow();

      public Q_SLOTS:
        // slots for file menu
        void 
        slotOpenProject();
        void 
        slotSaveProject();
        void 
        slotCloseProject();
        void 
        slotExit();
        void
        slotUpdateRecentFile(const QString& filename);

        // slots for view menu
        void
        slotCreateRenderWindow();

        void
        slotOnWorkerStarted();

        void
        slotOnWorkerFinished();

      private:
        // methods for file Menu
        void 
        connectFileMenuActions();
        void 
        createRecentPointCloudActions();
        void 
        updateRecentPointCloudActions();
        void 
        createRecentProjectActions();
        void 
        updateRecentProjectActions();
        bool 
        openProjectImpl(const QString& filename);
        static void 
        updateRecentActions(std::vector<boost::shared_ptr<QAction> >& recent_actions, QStringList& recent_items);

        // methods for view menu
        void 
        connectViewMenuActions();

        // methods for edit menu
        void 
        connectEditMenuActions();

        // methods for global settings
        void 
        loadGlobalSettings();
        void 
        saveGlobalSettings();

      private Q_SLOTS:
        void 
        slotOpenRecentPointCloud();
        void 
        slotOpenRecentProject();

      private:
        friend class AbstractItem;

        MainWindow();
        MainWindow(const MainWindow &) : QMainWindow () {}            // copy ctor hidden
        MainWindow& operator=(const MainWindow &) { return (*this); } // assign op. hidden
        ~MainWindow();

        Ui::MainWindow                    *ui_; // Designer form

        // shortcuts for recent point clouds/projects
        QStringList                       recent_files_;
        QStringList                       recent_projects_;
        static const size_t               MAX_RECENT_NUMBER = 8;
        std::vector<boost::shared_ptr<QAction> >  recent_pointcloud_actions_;
        std::vector<boost::shared_ptr<QAction> >  recent_project_actions_;
    };
  }
}

#endif // PCL_MODELER_MAIN_WINDOW_H_
