Core.hh

/*===========================================================================*\
*                                                                            *
*                              OpenFlipper                                   *
 *           Copyright (c) 2001-2015, RWTH-Aachen University                 *
 *           Department of Computer Graphics and Multimedia                  *
 *                          All rights reserved.                             *
 *                            www.openflipper.org                            *
 *                                                                           *
 *---------------------------------------------------------------------------*
 * This file is part of OpenFlipper.                                         *
 *---------------------------------------------------------------------------*
 *                                                                           *
 * Redistribution and use in source and binary forms, with or without        *
 * modification, are permitted provided that the following conditions        *
 * are met:                                                                  *
 *                                                                           *
 * 1. Redistributions of source code must retain the above copyright notice, *
 *    this list of conditions and the following disclaimer.                  *
 *                                                                           *
 * 2. 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.   *
 *                                                                           *
 * 3. Neither the name of the copyright holder 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 HOLDER *
 * 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.              *
*                                                                            *
\*===========================================================================*/

/*===========================================================================*\
*                                                                            *
*   $Revision$                                                       *
*   $LastChangedBy$                                                *
*   $Date$                     *
*                                                                            *
\*===========================================================================*/




//=============================================================================
//
//  CLASS Core
//
//=============================================================================

/**
 * \file Core.hh
 * This File contains the header of the frameworks system core
*/

#ifndef MVIEWWIDGET_HH
#define MVIEWWIDGET_HH


//== INCLUDES =================================================================

#include <OpenFlipper/widgets/glWidget/QtBaseViewer.hh>

// QT INCLUDES
#include <QVariant>
#include <QMainWindow>
#include <QToolBox>
#include <QStackedWidget>
#include <QSplashScreen>

#include <QDockWidget>
#include <QVector>
#include <QProgressDialog>

#include <QtScript/QScriptEngine>
#include <QtScript/QtScript>

#include "OpenFlipper/INIFile/INIFile.hh"

#include "OpenFlipper/Logging/Logging.hh"
#include "OpenFlipper/Scripting/Scripting.hh"

// Prototypes for scripting
#include "OpenFlipper/Scripting/scriptPrototypes/prototypeVec3d.hh"
#include "OpenFlipper/Scripting/scriptPrototypes/prototypeVec4d.hh"
#include "OpenFlipper/Scripting/scriptPrototypes/prototypeMatrix4x4.hh"
#include "OpenFlipper/Scripting/scriptPrototypes/prototypeDataType.hh"
#include <OpenFlipper/Scripting/scriptWrappers/vec3dWrapper.hh>
#include <OpenFlipper/Scripting/scriptWrappers/vec4dWrapper.hh>
#include <OpenFlipper/Scripting/scriptWrappers/matrix4x4Wrapper.hh>
#include <OpenFlipper/Scripting/scriptWrappers/DataTypeWrapper.hh>
// #include <OpenFlipper/Scripting/scriptWrappers/ObjectIdWrapper.hh>

// Required Interface definition ( Some variables were defined there )
#include "OpenFlipper/BasePlugin/BaseInterface.hh"
#include "OpenFlipper/BasePlugin/FileInterface.hh"
#include "OpenFlipper/BasePlugin/TypeInterface.hh"
#include "OpenFlipper/BasePlugin/MenuInterface.hh"
#include "OpenFlipper/BasePlugin/InformationInterface.hh"
#include "OpenFlipper/BasePlugin/SelectionInterface.hh" // -> for SelectionInterface::PrimitiveType
#include "OpenFlipper/BasePlugin/ContextMenuInterface.hh"

#include <OpenFlipper/widgets/coreWidget/CoreWidget.hh>

// Process manager widget
#include <OpenFlipper/widgets/processManagerWidget/processManagerWidget.hh>

#include <OpenFlipper/common/GlobalOptions.hh>

#include <OpenFlipper/Core/PluginInfo.hh>

#include <ACG/Scenegraph/CoordsysNode.hh>

#include <OpenFlipper/threads/JobInfo.hh>

#include <OpenFlipper/common/FileTypes.hh>
#include <OpenFlipper/common/InformationPlugins.hh>
#include "SpinBoxEventFilter.hh"

//== CLASS DEFINITION =========================================================


struct dataTypes {
  QString name;
  DataType type;
  TypeInterface* plugin;
};

/** Core Widget of the Application
 */
class Core : public QObject
{
  Q_OBJECT

public:

  /// constructor
  Core();

  void init();

  /// destructor
  ~Core();

  /// Synchronise two viewers
  bool add_sync_host(const QString& _name);


private slots:

  /// Handle Mouse events when in Identifier mode
  void slotMouseEventIdentify( QMouseEvent* _event );
  
  /// Handle Mouse events when in Light mode
  void slotMouseEventLight( QMouseEvent* _event );

protected:

    //===========================================================================
    /** @name Signals send to Plugins
    * @{ */
   //===========================================================================
signals:
   /// Signal send to plugins when whole scene is cleared
   void allCleared();

   /// When this Signal is emitted all Plugins are informed that the object list changed
   void signalObjectUpdated(int);

   /// When this Signal is emitted all Plugins are informed that some type of update was performed on an object
   void signalObjectUpdated(int, const UpdateType&);
   
   /// When this Signal is emitted when a Wheel Event occures
   void PluginWheelEvent(QWheelEvent * , const std::string & );

   /// When this Signal is emitted when a Mouse Event occures
   void PluginMouseEvent(QMouseEvent* );

   /// Emitted when an light event occurs
   void PluginMouseEventLight( QMouseEvent* );

   /// This signal is emitted if the object has been changed (source/target)
   void objectSelectionChanged( int );

   /// This signal is emitted if one of the viewers updated its view
   void pluginViewChanged();

   /// This signal is emitted after the scene has been drawn
   void pluginSceneDrawn();

   /// The texture with the given name and filename has been added
   void addTexture( QString, QString , uint, int );

   /// The texture with the given name and filename has been added
   void addTexture( QString, QString , uint );

   /// The texture with the given name and filename has been added
   void addMultiTexture( QString _textureGroup , QString _name , QString _filename , int _id , int& _textureId );

   /// Tell the plugins to update the given texture
   void updateTexture( QString , int );

   /// Update all textures in the plugins
   void updateAllTextures( );

   /// This Signal is send to the plugins if a texture has been updated
   void updatedTextures( QString , int );

   /// A texture mode should be changed
   void setTextureMode(QString _textureName ,QString _mode, int _id);

   /// A texture mode should be changed
   void setTextureMode(QString _textureName ,QString _mode);

   /// Switch Texture Plugins to a given Mode
   void switchTexture( QString, int );

   /// Switch Texture Plugins to a given Mode
   void switchTexture( QString );

   /// Change the image for a given texture
   void textureChangeImage( QString _textureName , QImage& _image );

   /// Change the image for a given texture
   void textureChangeImage( QString _textureName , QImage& _image , int _id );

   ///fetch texture image
   void textureGetImage( QString _textureName , QImage& _image );

   ///fetch texture image
   void textureGetImage( QString _textureName , QImage& _image , int _id );

   /// get the texture index
   void textureIndex( QString _textureName, int _id, int& _index);
   
   /// get the texture index property name
   void textureIndexPropertyName( int _id, QString& _propertyName);
   
   /// get the texture name
   void textureName( int _id, int _textureIndex, QString& _textureName);
   
   /// get the texture's filename
   void textureFilename( int _id, QString _textureName, QString& _textureFilename);

   ///get current texture
   void getCurrentTexture( int _id, QString& _textureName );

   /// get a multi-texture's sub textures
   void getSubTextures( int _id, QString _multiTextureName, QStringList& _subTextures );
   
   /// SelectionInterface: This signal is emitted when a new toolbutton should be added
   void addSelectionEnvironment(QString _modeName, QString _description, QString _icon, QString& _handleName);
   
   /// SelectionInterface: This signal is emitted when a data type should be registered for a selection mode
   void registerType(QString _handleName, DataType _type);
   
   /// SelectionInterface: This signal is emitted when a selection plugin should handle a new primitive type
   void addPrimitiveType(QString _handleName, QString _name, QString _icon, SelectionInterface::PrimitiveType& _typeHandle);
   
   /// SelectionInterface: This signal is emitted when a custom selection mode is added
   void addCustomSelectionMode(QString _handleName, QString _modeName, QString _description, QString _icon,
                               SelectionInterface::PrimitiveType _associatedTypes, QString& _customIdentifier);
   void addCustomSelectionMode(QString _handleName, QString _modeName, QString _description, QString _icon,
                               SelectionInterface::PrimitiveType _associatedTypes, QString& _customIdentifier,
                               DataType _objectTypeRestriction);
   
   /// SelectionInterface: This signal is used to add non-interactive operations for a specific primitive type
   void addSelectionOperations(QString _handleName, QStringList _operationsList, QString _category, SelectionInterface::PrimitiveType _type);
   
   /// SelectionInterface: This signal is emitted when a non-interactive operation has been performed
   void selectionOperation(QString _operation);
  
   /// SelectionInterface: This signal is emitted when standard toggle selection is required
   void showToggleSelectionMode(QString _handleName, bool _show, SelectionInterface::PrimitiveType _associatedTypes);
   
   /// SelectionInterface: This signal is emitted when standard lasso selection is required
   void showLassoSelectionMode(QString _handleName, bool _show, SelectionInterface::PrimitiveType _associatedTypes);
   
   /// SelectionInterface: This signal is emitted when standard volume lasso selection is required
   void showVolumeLassoSelectionMode(QString _handleName, bool _show, SelectionInterface::PrimitiveType _associatedTypes);
   
   /// SelectionInterface: This signal is emitted when standard surface lasso selection is required
   void showSurfaceLassoSelectionMode(QString _handleName, bool _show, SelectionInterface::PrimitiveType _associatedTypes);
   
   /// SelectionInterface: This signal is emitted when standard sphere selection is required
   void showSphereSelectionMode(QString _handleName, bool _show, SelectionInterface::PrimitiveType _associatedTypes);
   
   /// SelectionInterface: This signal is emitted when standard closest boundary selection is required
   void showClosestBoundarySelectionMode(QString _handleName, bool _show, SelectionInterface::PrimitiveType _associatedTypes);
   
   /// SelectionInterface: This signal is emitted when standard flood fill selection is required
   void showFloodFillSelectionMode(QString _handleName, bool _show, SelectionInterface::PrimitiveType _associatedTypes);

   /// SelectionInterface: This signal is emitted when standard connected components selection is required
   void showComponentsSelectionMode(QString _handleName, bool _show, SelectionInterface::PrimitiveType _associatedTypes);
  
   /// SelectionInterface: This signal is emitted when standard toggle selection has been performed
   void toggleSelection(QMouseEvent* _event, SelectionInterface::PrimitiveType _currentType, bool _deselect);
   
   /// SelectionInterface: This signal is emitted when standard lasso selection has been performed
   void lassoSelection(QMouseEvent* _event, SelectionInterface::PrimitiveType _currentType, bool _deselect);
   
   /// SelectionInterface: This signal is emitted when standard volume lasso selection has been performed
   void volumeLassoSelection(QMouseEvent* _event, SelectionInterface::PrimitiveType _currentType, bool _deselect);
   
   /// SelectionInterface: This signal is emitted when standard surface lasso selection has been performed
   void surfaceLassoSelection(QMouseEvent* _event, SelectionInterface::PrimitiveType _currentType, bool _deselect);
   
   /// SelectionInterface: This signal is emitted when standard sphere selection has been performed
   void sphereSelection(QMouseEvent* _event, double _radius, SelectionInterface::PrimitiveType _currentType, bool _deselect);
   
   /// SelectionInterface: This signal is emitted when standard closest boundary selection has been performed
   void closestBoundarySelection(QMouseEvent* _event, SelectionInterface::PrimitiveType _currentType, bool _deselect);
   
   /// SelectionInterface: This signal is emitted when standard flood fill selection has been performed
   void floodFillSelection(QMouseEvent* _event, double _maxAngle, SelectionInterface::PrimitiveType _currentType, bool _deselect);
   
   /// SelectionInterface: This signal is emitted when standard connected components selection has been performed
   void componentsSelection(QMouseEvent* _event, SelectionInterface::PrimitiveType _currentType, bool _deselect);

   /// SelectionInterface: This signal is emitted when a custom selection operation has been performed
   void customSelection(QMouseEvent* _event, SelectionInterface::PrimitiveType _currentType, QString _customIdentifier, bool _deselect);
  
   /// SelectionInterface: This signal is emitted when the active (selected) data types should be fetched
   void getActiveDataTypes(SelectionInterface::TypeList& _types);
   
   /// SelectionInterface: This signal is emitted when the active (selected) primitive type should be fetched
   void getActivePrimitiveType(SelectionInterface::PrimitiveType& _type);
   
   /// SelectionInterface: This signal is emitted if the current target restriction state is requested
   void targetObjectsOnly(bool& _targetsOnly);
   
   /// SelectionInterface: This signal is emitted when a selection should be loaded from a file
   void loadSelection(const INIFile& _file);
   
   /// SelectionInterface: This signal is emitted when a selection should be written into a file
   void saveSelection(INIFile& _file);
   
   /// SelectionInterface: This signal is emitted when a type selection plugin wants to listen to a key event
   void registerKeyShortcut(int _key, Qt::KeyboardModifiers _modifiers);
   
   /// SelectionInterface: This signal is emitted when a key shortcut has been pressed
   void keyShortcutEvent(int _key, Qt::KeyboardModifiers _modifiers = Qt::NoModifier);

   /// If an ini File is opened, this signal is send to Plugins capable of handling ini files
   void iniLoad( INIFile&, int );

   /// This signal is used to tell the plugins to save the data of _id to the given file
   void iniSave( INIFile& _ini ,int _id );

   /// This signal is used to tell the plugins to save their current status
   void iniSaveOptions(  INIFile& _ini );

   /// This signal is used to tell the plugins to load their new status
   void iniLoadOptions(  INIFile& _ini );

   /// This signal is used to tell the plugins to load their new status after objects are loaded
   void iniLoadOptionsLast(  INIFile& _ini );

   /// This signal is emitted before the core deletes its data and exits
   void saveOnExit( INIFile& _ini );

   /// Tell backup-plugin to create a backup
   void createBackup( int _objectid, QString _name, UpdateType _type = UPDATE_ALL);
   void createBackup( IdList _objectids, QString _name, std::vector<UpdateType> _types);

   /// Tell backup-plugin to undo/redo
   void undo(int _objectid);
   void redo(int _objectid);
   void undo();
   void redo();

   /// Backup Plugin tells other Plugins that a restore will happen
   void aboutToRestore(int _objectId);
   
   /// Backup Plugin tells other Plugins that a restore has happened
   void restored( int _objectId);

   /// Tell the plugins that a file has been opened ( -> Database)
   void openedFile( int _id );

   /// Tell the plugins that an empty object has been added
   void emptyObjectAdded( int _id);

   /// Called after all plugins are loaded
   void pluginsInitialized();

   /// Tell plugins that the visibility of an object has changed
   void visibilityChanged(int _id);

   /// Tell plugins that object properties such as object names have been changed
   void objectPropertiesChanged( int _id );

   /// Called after an object has been deleted
   void objectDeleted( int );

   /** @} */

   //===========================================================================
    /** @name Slots called by the plugins
    * @{ */
   //===========================================================================
   private slots :

      /// Called by the plugins if they changed something in the object list (deleted, added, or other property changes)
      void slotObjectUpdated(int _identifier, const UpdateType& _type = UPDATE_ALL);

      /// Called when a plugin changes the visibility of an object
      void slotVisibilityChanged(int _id);

      /// Called by plugins if object properties like names have changed
      void slotObjectPropertiesChanged( int _id );

      /// Called by Plugins if they changed the active object
      void slotObjectSelectionChanged( int _id);

      /// Add a new picking mode to the examiner_widget_
      void slotAddPickMode( const std::string& _mode );

      /// Add a new and invisible picking mode to the examiner_widget_
      void slotAddHiddenPickMode( const std::string& _mode );

      /// Called by a plugin if it creates a texture
      void slotAddTexture( QString _textureName , QString _filename , uint _dimension , int _id );

      /// Called by a plugin if it creates a texture
      void slotAddTexture( QString _textureName , QString _filename , uint _dimension );

      /// Called by a plugin if it creates a multitexture
      void slotMultiTextureAdded( QString _textureGroup , QString _name , QString _filename , int _id , int& _textureId );
      void slotMultiTextureAdded( QString _textureGroup , QString _name , QString _filename , int _id , int* _textureId );

      /// Tell the plugins to update the given texture
      void slotUpdateTexture( QString _name , int _identifier);

      /// Update all textures in the plugins
      void slotUpdateAllTextures( );

      /// A Texture has been updated
      void slotTextureUpdated( QString _textureName , int _identifier );

      /// A texture mode should be changed
      void slotSetTextureMode(QString _textureName ,QString _mode, int _id);

      /// A texture mode should be changed
      void slotSetTextureMode(QString _textureName ,QString _mode);

      /// Tells Plugins to switch to the given Texture
      void slotSwitchTexture( QString _textureName, int _id );

      /// Tells Plugins to switch to the given Texture
      void slotSwitchTexture( QString _textureName );

      ///Called by plugins if texture image should be changed
      void slotTextureChangeImage( QString _textureName , QImage& _image );

      ///Called by plugins if texture image should be changed
      void slotTextureChangeImage( QString _textureName , QImage& _image , int _id );

      ///Called by plugins if texture image should be fetched
      void slotTextureGetImage( QString _textureName , QImage& _image );

      ///Called by plugins if texture image should be fetched
      void slotTextureGetImage( QString _textureName , QImage& _image , int _id );
      
      ///Called by plugins if texture index should be fetched
      void slotTextureIndex( QString _textureName, int _id, int& _index);
      
      ///Called by plugins if texture index property name should be fetched
      void slotTextureIndexPropertyName( int _id, QString& _propertyName);
      
      ///Called by plugins if texture name should be fetched
      void slotTextureName( int _id, int _textureIndex, QString& _textureName);
      
      ///Called by plugins if texture name should be fetched
      void slotTextureFilename( int _id, QString _textureName, QString& _textureFilename);
      
      ///Called by plugins if current texture should be retrieved
      void slotGetCurrentTexture( int _id, QString& _textureName );

      ///Called by plugins if a multi-texture's sub textures should be fetched
      void slotGetSubTextures( int _id, QString _multiTextureName, QStringList& _subTextures );

      /// A plugin wants to load a given file
      void slotLoad(QString _filename, DataType _type, int& _id);

      /// the load widget wants to load a given file
      void slotLoad(QStringList _filenames, IdList _pluginIDs);
      
      /// Called when a file has been opened
      void slotFileOpened ( int _id );

      /// Called when an empty object has been Added
      void slotEmptyObjectAdded ( int _id );
  
      /// SelectionInterface: Called when a new selection type button should be added to the toolbar
      void slotAddSelectionEnvironment(QString _modeName, QString _description, QString _icon, QString& _handleName);

      /// SelectionInterface: Called when a data type is added for a specific selection type
      void slotRegisterType(QString _handleName, DataType _type);

      /// SelectionInterface: Called when a new, non-standard primitive type should be handled
      void slotAddPrimitiveType(QString _handleName, QString _name, QString _icon, SelectionInterface::PrimitiveType& _typeHandle);

      /** \brief SelectionInterface: Add new selection mode for specified type
       *
       * @param _handleName             Handle of the selection mode
       * @param _modeName               User visible name of the selection mode
       * @param _description            Description of the mode
       * @param _icon                   Icon displayed in the selection toolbar
       * @param _associatedTypes        primitive types supported by this mode
       * @param _customIdentifier       Identifier of this mode
       */
      void slotAddCustomSelectionMode(QString _handleName, QString _modeName, QString _description, QString _icon,
                                      SelectionInterface::PrimitiveType _associatedTypes, QString& _customIdentifier);

      /** \brief  SelectionInterface: Add new selection mode for specified type
       *
       * @param _handleName             Handle of the selection mode
       * @param _modeName               User visible name of the selection mode
       * @param _description            Description of the mode
       * @param _icon                   Icon displayed in the selection toolbar
       * @param _associatedTypes        primitive types supported by this mode
       * @param _customIdentifier       Identifier of this mode
       * @param _objectTypeRestriction  Object types supported by this mode
       */
      void slotAddCustomSelectionMode(QString _handleName, QString _modeName, QString _description, QString _icon,
                                      SelectionInterface::PrimitiveType _associatedTypes, QString& _customIdentifier,
                                      DataType _objectTypeRestriction);
      
      /// SelectionInterface: Called in order to add non-interactive operations for a specific primitive type
      void slotAddSelectionOperations(QString _handleName, QStringList _operationsList, QString _category, SelectionInterface::PrimitiveType _type);
       
      /// SelectionInterface: Called when a non-interactive operation has been performed
      void slotSelectionOperation(QString _operation);

      /// SelectionInterface: Provide toggle selection operation for specific selection mode
      void slotShowToggleSelectionMode(QString _handleName, bool _show, SelectionInterface::PrimitiveType _associatedTypes);

      /// SelectionInterface: Provide lasso selection operation for specific selection mode
      void slotShowLassoSelectionMode(QString _handleName, bool _show, SelectionInterface::PrimitiveType _associatedTypes);

      /// SelectionInterface: Provide volume lasso selection operation for specific selection mode
      void slotShowVolumeLassoSelectionMode(QString _handleName, bool _show, SelectionInterface::PrimitiveType _associatedTypes);
      
      /// SelectionInterface: Provide surface lasso selection operation for specific selection mode
      void slotShowSurfaceLassoSelectionMode(QString _handleName, bool _show, SelectionInterface::PrimitiveType _associatedTypes);

      /// SelectionInterface: Provide sphere selection operation for specific selection mode
      void slotShowSphereSelectionMode(QString _handleName, bool _show, SelectionInterface::PrimitiveType _associatedTypes);

      /// SelectionInterface: Provide closest boundary selection operation for specific selection mode
      void slotShowClosestBoundarySelectionMode(QString _handleName, bool _show, SelectionInterface::PrimitiveType _associatedTypes);

      /// SelectionInterface: Provide flood fill selection operation for specific selection mode
      void slotShowFloodFillSelectionMode(QString _handleName, bool _show, SelectionInterface::PrimitiveType _associatedTypes);

      /// SelectionInterface: Provide connected components selection operation for specific selection mode
      void slotShowComponentsSelectionMode(QString _handleName, bool _show, SelectionInterface::PrimitiveType _associatedTypes);

      /// SelectionInterface: Called when toggle selection operation has been performed
      void slotToggleSelection(QMouseEvent* _event, SelectionInterface::PrimitiveType _currentType, bool _deselect);

      /// SelectionInterface: Called when lasso selection operation has been performed
      void slotLassoSelection(QMouseEvent* _event, SelectionInterface::PrimitiveType _currentType, bool _deselect);

      /// SelectionInterface: Called when volume lasso selection operation has been performed
      void slotVolumeLassoSelection(QMouseEvent* _event, SelectionInterface::PrimitiveType _currentType, bool _deselect);
      
      /// SelectionInterface: Called when surface lasso selection operation has been performed
      void slotSurfaceLassoSelection(QMouseEvent* _event, SelectionInterface::PrimitiveType _currentType, bool _deselect);

      /// SelectionInterface: Called when sphere selection operation has been performed
      void slotSphereSelection(QMouseEvent* _event, double _radius, SelectionInterface::PrimitiveType _currentType, bool _deselect);

      /// SelectionInterface: Called when closest boundary selection operation has been performed
      void slotClosestBoundarySelection(QMouseEvent* _event, SelectionInterface::PrimitiveType _currentType, bool _deselect);

      /// SelectionInterface: Called when flood fill selection operation has been performed
      void slotFloodFillSelection(QMouseEvent* _event, double _maxAngle, SelectionInterface::PrimitiveType _currentType, bool _deselect);

      /// SelectionInterface: Called when connected components selection operation has been performed
      void slotComponentsSelection(QMouseEvent* _event, SelectionInterface::PrimitiveType _currentType, bool _deselect);

      /// SelectionInterface: Called when custom selection operation has been performed
      void slotCustomSelection(QMouseEvent* _event, SelectionInterface::PrimitiveType _currentType, QString _customIdentifier, bool _deselect);

      /// SelectionInterface: Called when active (selected) data types should be fetched
      void slotGetActiveDataTypes(SelectionInterface::TypeList& _types);

      /// SelectionInterface: Called when active primitive type should be fetched
      void slotGetActivePrimitiveType(SelectionInterface::PrimitiveType& _type);
      
      /// SelectionInterface: Called when target restriction state should be fetched
      void slotTargetObjectsOnly(bool& _targetsOnly);
      
      /// SelectionInterface: Called when a selection should be loaded from a file
      void slotLoadSelection(const INIFile& _file);
      
      /// SelectionInterface: Called when a selection should be stored into a file
      void slotSaveSelection(INIFile& _file);
      
      /// SelectionInterface: Called when a key shortcut is to be registered
      void slotRegisterKeyShortcut(int _key, Qt::KeyboardModifiers _modifiers);
      
      /// SelectionInterface: Called when a key event occurred
      void slotKeyShortcutEvent(int _key, Qt::KeyboardModifiers _modifiers);

      /** \brief Called when a plugin requests a list of file-filters
      *
      * This function collects all available load filters from the file Plugins.
      * It is normally called via the Load/Save interface ( LoadSaveInterface ).
      *
      * @param _list Returns a list of all available file load filters
      */ 
      void slotGetAllFilters ( QStringList& _list);


      /// Called when a plugin wants to delete all objects
      void slotDeleteAllObjects( );
      
      /// Called to create inter plugin connections
      void slotCrossPluginConnect( QString _pluginName1, const char* _signal, QString _pluginName2, const char* _slot);

      /// called to switch the renderer for a specific viewer
      void slotSetRenderer(unsigned int _viewer, QString _rendererName);

      /// called to get the currently active renderer renderer for a specific viewer
      void slotGetCurrentRenderer(unsigned int _viewer, QString& _rendererName);

      /// Get a Pointer to the Plugin with given _name (if it is loaded)
      //  void slotGetPlugin(QString _name, QObject* & _plugin );

   /** @} */

    //===========================================================================
    /** @name scriptable slots
    * @{ */
   //===========================================================================
public slots:

    /// Called when a  plugin requests an update in the viewer
    void updateView();

    /// Called when a plugin wants to lock or unlock scenegraph updates
    void  blockScenegraphUpdates(bool _block);

    /// process events during script execution to keep the ui alive
    void updateUI();

    /// Clear all data objects
    void clearAll();

    /// Called to delete an object
    void deleteObject( int _id );

    void setObjectComment(int objId, QString key, QString comment);
    void clearObjectComment(int objId, QString key);
    void clearAllComments(int objId);

    /// set fullscreen mode
    void fullscreen( bool _state );
    
    /// Show or Hide the viewmode control widget.
    void showViewModeControls( bool _show );

    /// Change the logging window state
    void loggerState(int _state);
    
    /// Enable or disable OpenMesh error logging
    void enableOpenMeshErrorLog(bool _state);

    /// Show or hide toolbox
    void showToolbox( bool _state );

    /// Show or hide Status Bar
    void showStatusBar( bool _state );

    /// Switch the multiView Mode
    void multiViewMode( int _mode );

    /// Enable or disable framerate restriction
    void restrictFrameRate( bool _enable );

    /// set the maximal framerate ( automatically enables framerate restriction )
    void setMaxFrameRate( int _rate );

    /// set the baseFilename for snapshots (a counter is automatically increased when
    /// snapshot() is called)
    void snapshotBaseFileName(QString _fname, unsigned int _viewerId = 0);
    
    /// Set the file type for snapshots.
    void snapshotFileType(QString _type, unsigned int _viewerId = 0);
    
    /// Set the start index for the snapshot counter
    void snapshotCounterStart(const int _counter, unsigned int _viewerId = 0);

    /** Trigger a snapshot and increase the snapshot counter.
      Save snapshot to file determined by snapshotBaseFileName() and
      the current snapshot counter. The \a back buffer will be saved.
      The id of the current viewer is 0 (default).
    */
    void snapshot(unsigned int _viewerId = 0, int _width = 0, int _height = 0, bool _alpha = false, bool _hideCoordsys = false, int _numSamples = 1);

    /// Take a snapshot from the whole app
    void applicationSnapshot();

    /// Set the baseName for the application snapshot
    void applicationSnapshotName(QString _name);

    /// Take a snapshot from all viewers
    void viewerSnapshot();

    /// Scriptable snapshot method offering full control
    void viewerSnapshot(QString file_name, bool store_comments,
            bool comments_visible_only, bool comments_targeted_only,
            bool store_material_info, int snapshot_width, int snapshot_height,
            bool snapshot_transparent, bool hide_coord_sys,
            int snapshot_multisampling, bool store_view);

    /// resize the examinerViewer
    void resizeViewers(int _width, int _height );

    /// resize the whole Application
    void resizeApplication(int _width, int _height );

    /// write the current versions of all plugins to ini file
    void writeVersionNumbers(QString _filename);

    /// return the list of available object that has the given selection and type
    QList<int> objectList (QString _selection, QStringList _types);

    /// Block the scenegraph updates
    void blockSceneGraphUpdates();

    /// Unblock the scenegraph updates
    void unblockSceneGraphUpdates();

    void setView(QString view);
    void setViewAndWindowGeometry(QString view);

    /** @} */

   //===========================================================================
    /** @name Scripting functions for controlling view modes
    * @{ */
   //===========================================================================

public slots:
    /** \brief Scripting function to set toolboxes in a view mode
     *
     * @param _modeName Name of the View Mode
     * @param _toolboxList ; separated list of toolboxes in the view mode
    */
    void addViewModeToolboxes(QString _modeName, QString _toolboxList);
    
    /** \brief Scripting function to set toolbars in a view mode
     *
     * @param _modeName Name of the View Mode
     * @param _toolbarList ; separated list of toolbars in the view mode
     *
    */
    void addViewModeToolbars(QString _modeName, QString _toolbarList);
    
    /** \brief Scripting function to set context menus in a view mode
     *
     * @param _modeName Name of the View Mode
     * @param _contextMenuList ; separated list of context menus in the view mode
    */
    void addViewModeContextMenus(QString _modeName, QString _contextMenuList);
    
    /** \brief Scripting function to set an icon for a view mode
     * @param _modeName Name of the View Mode
     * @param _iconName Name of the Icon File. Will be taken from OpenFlippers Icon directory
    */
    void addViewModeIcon(QString _modeName, QString _iconName);    
    
    /** \brief Scripting function to set the side of the main window on which the toolbox should be displayed
     *
     * @param _side The desired side (either "left" or "right")
    */
    void setToolBoxSide(QString _side);

    /** \brief Scripting function to activate or deactivate a toolbox
     *
     * @param _toolBoxName Name of the toolbox to manipulate
     * @param _active      Activate or deactivate
    */
    void setToolBoxActive(QString _toolBoxName, bool _active);

    /** @} */

   //===========================================================================
    /** @name Basic functions
    * @{ */
   //===========================================================================
public slots:
  /** \brief Load a new Object ( this may also be an ini or ofs file )
   *
   * This function tries to get the type of data to be loaded from the filename 
   * and then load the file.
   *
   *  @param _filename Filename of the data
   *  @return id of object otherwise -1
   */
  int loadObject ( QString _filename );
  
private slots:
  void loadObjectFinished(QString _filename);

  /** Do a reset of the scenegraph (bounding box update,...)
   *
   * @param _resetTrackBall Should the rotation center of the trackball be reset to the scene center?
   */
  void resetScenegraph( bool _resetTrackBall );

 public :

  /** \brief Load an object from the commandline on application start
  *
  * This function is called before the event queue is executed. The filename and parameters
  * are stored. After the event queue is started, all files in this list will be opened.
  * This is necessary as the event queue has to run to schedule the events emitted 
  * during open operations.
  *
  * @param _filename filename of the file to be opened. If it does not contain a full path,
  *                  the current path will be prepended.
  * @param _asPolyMesh Load as a polymesh ( yes/no)
  */
  void commandLineOpen(const char* _filename, bool _asPolyMesh );

  /** \brief Load a script from the commandline on application start
  *
  * This function is called before the event queue is executed. The filename 
  * is stored. After the event queue is started, all files in this list will be opened.
  * This is necessary as the event queue has to run to schedule the events emitted 
  * during open operations.
  *
  * @param _filename filename of the script to be opened. If it does not contain a full path,
  *                  the current path will be prepended.
  */
  void commandLineScript(const char* _filename );

  private slots:

  /** \brief Executed after loading core completly to load files from commandline
  *
  * This slot is automatically called after application startup. All files from the commandline
  * will be loaded by this slot. This is required as the core and the event queue need to be running
  * to emit the required signals to the plugins.
  */
  void slotExecuteAfterStartup();

  private:
    /// Vector storing filenames from commandline to be opened after application startup (objects)
    std::vector< std::pair < std::string , bool >  > commandLineFileNames_;
    
    /// Vector storing filenames from commandline to be opened after application startup (script files)
    std::vector< std::string > commandLineScriptNames_;

  public:

  /** Add an empty Object of the given Type
  * @return id of the new object or -1 if unsupported
  */
  int addEmptyObject( DataType _type );

  /** \brief Load object of the given Type with given filename
   *
   * This function should not be used anymore. \n
   * The extension is now used to check for the plugin handling the given types.
   *
   * @return id of the new object or -1 if unsupported
   */
  int loadObject( DataType _type, QString _filename);

  /** @} */

  //===========================================================================
  /** @name  Video Stream creation
  * @{ */
  //===========================================================================
  private slots:
    /// Slot called everytime the view is updated
    void viewUpdated();

    /// Function called for every frame when capturing video
    void captureVideo();

  public slots:

    /// Start video capturing
    void startVideoCapture(QString _baseName, int _fps, bool _captureViewers);

    /// Stop video capturing
    void stopVideoCapture();

  private:
    QTimer videoTimer_;
    QTime  lastVideoTime_;

    int captureType_;

    bool capture_;

    int lastWidth_;
    int lastHeight_;

  /** @} */
  //===========================================================================
    /** @name Load / Save slots
    * @{ */
  //===========================================================================

  public slots:

    /** Save object with given id
      * @param _id id of the object
      */
    bool saveObject( int _id, QString _filename );
    
    void saveObject( int _id, QString _filename, int _pluginID );
    
    void saveObjects( IdList _ids, QString _filename, int _pluginID );

    /** Show dialog for saving an object to a new location
      * @param _id id of the object
      * @param _filename current filename of the object
      */
    bool saveObjectTo( int _id, QString _filename );

    bool saveObjectsTo( IdList _ids, QString _filename );
      
    /// Slot for saving objects from Menu
    void saveAllObjects();

    /// Slot for saving objects to a new location
    void saveAllObjectsTo();

    /// Save current status to a settings file. Solicit file name through dialog.
    void saveSettings();

    /// Save current status to a the provided settings file
    void saveSettings(QString filePath, bool is_saveObjectInfo, bool is_targetOnly, bool is_saveAll,
                      bool is_askOverwrite, bool is_saveProgramSettings, bool is_savePluginSettings);

    /// Open Load Widget
    void loadObject();

    /// Load status from file
    void loadSettings();

    /// Load status from file
    void loadSettings(QString _filename);

    /// Get object id from filename
    int getObjectId(QString _filename);

    /** \brief Serialize material properties
     *
     * @param _objId  Id of the object where the material should be deserialized into
     * @param _props   A QString containing the serialized material
     */
    void deserializeMaterialProperties(int _objId, QString _props);

    /** \brief Serialize material properties
     *
     * @param _objId  Id of the object where the material should be serialized
     * @return A Qstring containing the serialized material
     */
    QString serializeMaterialProperties(int _objId);

  /** @} */

  //===========================================================================
    /** @name Basic slots
    * @{ */
  //===========================================================================
   private slots :

      /// Gets called by examiner widget when mouse is moved in picking mode
      void slotMouseEvent( QMouseEvent* _event );

      /// Gets called by examiner widget when Wheel is moved in picking mode
      void slotWheelEvent( QWheelEvent * _event, const std::string & _mode);

      /** \brief Open the add Empty dialog
      *
      * This slot shows the addEmpty dialog which is used to add empty objects of supported dataTypes
      */
      void slotAddEmptyObjectMenu();

      /// Slot adding empty object of a given type
      void slotAddEmptyObject( DataType _type , int& _id );
      void slotAddEmptyObject( DataType _type, int* _id);

      /// Slot copying an object
      void slotCopyObject( int _oldId , int& _newId );

      /// Exit Application
      void slotExit();

      /// Open Recent file
      void slotRecentOpen(QAction* _action);

      /// Slot for generating type specific backups
      void slotGenerateBackup( int _id, QString _name, UpdateType _type );

   public slots:

    /// Add a Toolbox from a plugin or from scripting
     void addToolbox(QString _name ,QWidget* _widget);

    /// Add a Toolbox from a plugin or from scripting (with icon)
     void addToolbox(QString _name ,QWidget* _widget, QIcon* _icon);

     /**
      * Get a toolbox.
      *
      * @param _pluginName The plugin which the requested toolbox belongs to.
      * @param _toolboxName The name of the requested toolbox.
      * @return A pointer to the requested toolbox widget if it was found, nullptr, otherwise.
      */
     QWidget *getToolbox(QString _pluginName, QString _toolboxName);

     void activateToolbox(QString _pluginName, QString _toolboxName, bool activate);

   private :

   //===========================================================================
    /** @name Scenegraph
    * @{ */
   //===========================================================================

   private:
      /// Scenegraphs root node
      SeparatorNode* root_node_scenegraph_;
      
      /// Seperator node for global nodes
      SeparatorNode* root_node_scenegraph_global_;

      /// Separator Node holding all core scenegraph nodes
      SeparatorNode* core_nodes_;
      
      
      ///Toplevel Nodes for data objects
      SeparatorNode* dataSeparatorNode_;
      
      /// Root Node for data objects
      SeparatorNode*  dataRootNode_;

      /// Node for coordsys Material
      ACG::SceneGraph::MaterialNode* coordsysMaterialNode_;

      /// Node for the coordinate system
      ACG::SceneGraph::CoordsysNode* coordsysNode_;

   /** @} */

   //===========================================================================
    /** @name IniFile and Options Handling
    * @{ */
   //===========================================================================

   /// Get all ini files and set basic paths and options
   void setupOptions();

   /// Read Options that needs the GUI to be set up completely
   void readGUIOptions(INIFile& _ini);

   /// Get and set Application options from ini file
   void readApplicationOptions(INIFile& _ini);

   /// Write Application options to ini file
   void writeApplicationOptions(INIFile& _ini);

   /// Restore key assignments from configs files
   void restoreKeyBindings();

  public slots:

   /// Save the current options to the standard ini file
   void saveOptions();

   /// after ini-files have been loaded and core is up or if options have been changed -> apply Options
   void applyOptions();

   /** \brief Load information from an ini file
    *
    * This function will open an ini file and load the information in it.
    *
    * @param _filename Name of the ini file
    * @param _coreSettings      Load core settings from the file
    * @param _perPluginSettings Load per plugin settings from the file
    * @param _loadObjects       Load objects defined in the ini file
    *
    */
   void openIniFile( QString _filename,
                     bool    _coreSettings ,
                     bool    _perPluginSettings,
                     bool    _loadObjects );

  private:

   /** \brief Write current status to ini file (Application and File Options)
    *
    *  Writes the complete status to an ini file ( All open objects and their Information )
    *
    * @param _filename           Filename of the ini file to write with full path
    * @param _relativePaths      This defines if the paths to the objects should be made relative
    * @param _targetOnly         Select if we want all open objects or only the ones which are selected as target.
    * @param _saveSystemSettings Choose if you also want to save system settings into the ini file.
    * @param _savePluginSettings Choose if you want to save per Plugin global settings into the ini file.
    * @param _saveObjectInfo     If you want to store information about all open objects this has to be true
    * @param _fileMapping        If multiple files have the same name, all duplicates get renamed. Mapping: Id -> new file name.
    */
   void writeIniFile( QString _filename,
                      bool    _relativePaths,
                      bool    _targetOnly,
                      bool    _saveSystemSettings,
                      bool    _savePluginSettings ,
                      bool    _saveObjectInfo,
                      std::map<int,QString>& _fileMapping);

   /** \brief Write current status to obj file (Application and File Options)
    *
    *  Writes the complete status to an obj file ( All open objects and their Information )
    */
   void writeObjFile(QString _filename, bool _relativePaths, bool _targetOnly, std::map<int,QString>& _fileMapping);

   /// Called if app is closed and writes all information to ini file
   void writeOnExit();

   /** @} */

   
  //===========================================================================
  /** @name Logging
  * @{ */
  //===========================================================================

  signals:
    /// Logg with OUT,WARN or ERR as type
    void log(Logtype _type , QString _message );

    /// Default logging as OUT
    void log(QString _message );

    /// Logging signal for ScriptEngine
    void scriptLog(QString _message);

    /// This signal is emitted to send log data to a plugin
    void externalLog(Logtype _type , QString _message);

  private slots:

    /// Console logger
    void slotLog(Logtype _type, QString _message);

    /// log to file