/*===========================================================================*\
 *                                                                           *
 *                              OpenFlipper                                  *
 *      Copyright (C) 2001-2010 by Computer Graphics Group, RWTH Aachen      *
 *                           www.openflipper.org                             *
 *                                                                           *
 *---------------------------------------------------------------------------*
 *  This file is part of OpenFlipper.                                        *
 *                                                                           *
 *  OpenFlipper is free software: you can redistribute it and/or modify      *
 *  it under the terms of the GNU Lesser General Public License as           *
 *  published by the Free Software Foundation, either version 3 of           *
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 *  following exceptions:                                                    *
 *                                                                           *
 *  If other files instantiate templates or use macros                       *
 *  or inline functions from this file, or you compile this file and         *
 *  link it with other files to produce an executable, this file does        *
 *  not by itself cause the resulting executable to be covered by the        *
 *  GNU Lesser General Public License. This exception does not however       *
 *  invalidate any other reasons why the executable file might be            *
 *  covered by the GNU Lesser General Public License.                        *
 *                                                                           *
 *  OpenFlipper is distributed in the hope that it will be useful,           *
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of           *
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            *
 *  GNU Lesser General Public License for more details.                      *
 *                                                                           *
 *  You should have received a copy of the GNU LesserGeneral Public          *
 *  License along with OpenFlipper. If not,                                  *
 *  see <http://www.gnu.org/licenses/>.                                      *
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\*===========================================================================*/

/*===========================================================================*\
 *                                                                           *
 *   $Revision$                                                         *
 *   $Author$                                                      *
 *   $Date$                   *
 *                                                                           *
\*===========================================================================*/




//=============================================================================
//
//  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.h>
#include <qmainwindow.h>
#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/prototypeMatrix4x4.hh"
#include "OpenFlipper/Scripting/scriptPrototypes/prototypeDataType.hh"
#include <OpenFlipper/Scripting/scriptWrappers/vec3dWrapper.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/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>

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

struct fileTypes {
  QString name;
  DataType type;
  QString loadFilters;
  QString saveFilters;
  FileInterface* plugin;
  QObject* object;
  bool saveMultipleObjects;
};

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 identify event occurs
   void PluginMouseEventIdentify( 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();

   /// 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 );

   /// 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 plugins to create a backup group
   void createBackupGroup( QString _name , int _groupId);
   
   /// Tell plugins to create a backup
   void createBackup( int _objectId , QString _name , int _internalId, int groupId = -1);
   
   /// Tell Plugins to make a backup persistent
   void makeBackupPersistent(int _objectid, int _internalId);
   
   /// Tell Backup Plugin to restore a group with the given group id
   void restoreGroup( int _groupId);
   
   /// Tell Backup Plugin to restore an object with the given backup id
   void restoreObject( int _objectId, int _internalId);
   
   
   /** \brief Backup Plugin tells other Plugins that a restore will happen
   */
   void aboutToRestore(int _objectId , int _internalId);
   
   /** \brief Backup Plugin tells other Plugins that they should restore their own data
   */
   void restore(int _objectId , int _internalId);
   
   /** \brief Backup Plugin tells other Plugins that a restore has happened
   */
   void restored( int _objectId , int _internalId);

   /// 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,...)
       * @param _identifier Id of the object
       */
      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 );

      /// 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 );

      /// Called if a backup group is requested by the plugins
      void slotBackupGroup(QString _name, int& _groupId );
      
      /// Called if a backup is requested by the plugins
      void slotBackup( int _objectId, QString _name, int& _internalId, int _groupId = -1 );
      
      /// Called if a backup is requested by the plugins
      void slotBackup( int _objectId, QString _name );

      /// Called if a group restore is requested by the plugins
      void slotRestoreGroup( int _groupId);
      
      /// Called if a backup is requested by the plugins
      void slotRestore( int _objectId, int _internalId = -1 );

      /// 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(QString _filename, int _pluginID);
      
      /// Called when a file has been opened
      void slotObjectOpened ( int _id );

      /// Called when an empty object has been Added
      void slotEmptyObjectAdded ( int _id );

      /** \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 an object
      void slotDeleteObject( int _id );

      /// Called when a plugin wants to delete all objects
      void slotDeleteAllObjects( );

      /// 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();

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

    /// exit the current application
    void exitApplication();

    /// set fullscreen mode
    void fullscreen( bool _state );

    /// Change the logging window state
    void loggerState(int _state);

    /// Show or hide toolbox
    void showToolbox( 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(const QString& _fname, 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);

    /// 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();

    /// 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);

   //===========================================================================
    /** @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 ; seperated 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 _toolboxList ; seperated 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 _toolboxList ; seperated 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 _toolboxList Name of the Icon File. Will be taken from OpenFlippers Icon directory
    */
    void addViewModeIcon(QString _modeName, QString _iconName);    

    /** @} */

   //===========================================================================
    /** @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:
  /** 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
    void saveSettings();

    /// 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);

  /** @} */

  //===========================================================================
    /** @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 );

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

      /// Exit Application
      void slotExit();

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

   public slots:

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

   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);

   /// Read recent files from ini-file
   void readRecentFiles(QString _filename);

   /// 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
    */
   void writeIniFile( QString _filename,
                      bool    _relativePaths,
                      bool    _targetOnly,
                      bool    _saveSystemSettings,
                      bool    _savePluginSettings ,
                      bool    _saveObjectInfo );

   /** \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);

   /// 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
    void slotLogToFile(Logtype _type, QString _message);

  private:
    ///stream for logging to file
    QTextStream* logStream_;

    ///logfile
    QFile* logFile_;

  public :
    void scriptLogFunction( QString _output);

  /** @} */


  //===========================================================================
  /** @name Signal and Slot processing for Plugins
  * @{ */
  //===========================================================================

  private :
    /// Check if a plugin has a slot
    bool checkSlot(QObject* _plugin , const char* _slotSignature);

    /// Check if a plugin has a signal
    bool checkSignal(QObject* _plugin , const char* _signalSignature);

  /** @} */

  //===========================================================================
    /** @name Plugin Management
      * @{ */
  //===========================================================================

  private:
    /// List of all loaded plugins
    std::vector<PluginInfo> plugins;

    /// Index of Plugins toolbox widget
    int toolboxindex_;

    /// Function for loading Plugins
    void loadPlugin(QString filename, bool silent, QObject* _plugin = 0 );

    /// Load all plugins from default plugin directory and from INI-File
    void loadPlugins();
  private slots:
    /// Show Plugins Dialog
    void slotShowPlugins();

    /// Function for unloading Plugins
    void unloadPlugin(QString name);

    /// Load Plugins from menu
    void slotLoadPlugin();

  /** @} */


  //===========================================================================
    /** @name Scripting support
      * @{ */
  //===========================================================================

  signals:

    void scriptInfo( QString _pluginName , QString _functionName  );

    void executeScript( QString _script );

    void executeFileScript( QString _filename );

    void setSlotDescription(QString     _slotName,   QString     _slotDescription,
                            QStringList _parameters, QStringList _descriptions);

  public slots:
    /** \brief Create an script object from a ui file
     *
     * This function will load an ui file, set up a qwidget from that and makes it available
     * under _objectName for scripting.
     * @param _objectName The name in scripting environment used for the new object
     * @param _uiFilename ui file to load
     */
    void createWidget(QString _objectName, QString _uiFilename);

    /// Set the active ViewMode
    void setViewMode(QString _viewMode);

    /// Set the icon of a viewMode
    void setViewModeIcon(QString _mode, QString _iconName);

  private :
    /// Core scripting engine
    QScriptEngine scriptEngine_;

    /// Wrappers for plugin scripting
    std::vector<ScriptingWrapper*> scriptingWrappers_;

    /// List of all registered scripting functions
    QStringList scriptingFunctions_;

    /// Prototype for the Vector type
    prototypeVec3d vec3dPrototype_;
    
    /// Prototype for the DataType
    prototypeDataType DataTypePrototype_;

    /// Prototype for the Matrix type
    prototypeMatrix4x4 matrix4x4Prototype_;


  private slots:
    void slotScriptInfo( QString _pluginName , QString _functionName  );

    void slotExecuteScript( QString _script );

    void slotGetScriptingEngine( QScriptEngine*& _engine  );

    void slotGetAllAvailableFunctions( QStringList& _functions  );

    /// set a description for one of the plugin's public slots
    void slotSetSlotDescription(QString     _slotName,   QString _slotDescription,
                                QStringList _parameters, QStringList _descriptions);
    /// get available descriptions for a given public slot
    void slotGetDescription(QString _function, QString& _fnDescription,
                                QStringList& _parameters, QStringList& _descriptions );

  private:

    QList< SlotInfo > coreSlots_;

    void setDescriptions();

  /** @} */

  //===========================================================================
    /** @name RPC ( Remote procedure Call) support
      * @{ */
  //===========================================================================
  private slots:
    void slotPluginExists( QString _pluginName , bool& _exists );


    void slotFunctionExists( QString _pluginName , QString _functionName , bool& _exists  );

    /** This slot executes a function of a plugin.
     * If it does not exist, _success will be false
     * @param _pluginName Plugin where the function is implemented
     * @param _functionName name of the function ( Standard name, no parameters allowed!)
     * @param _success successfull execution?
     */
    void slotCall( QString _pluginName , QString _functionName , bool& _success  );

    /** This slot executes the given expression.
     * No checks are performed if the remote function is available.
     * @param _expression command to execute
     * @param _success successfull execution?
     */
    void slotCall( QString _expression , bool& _success  );

    /** This slot executes the given expression and returns the result
     *  No checks are performed if the remote function is available.
     *  if an error occurs the result contains an invalid QVariant
     *
     * ex. getValue("databaseplugin.tableExists(\"meshes\")", result) )
     *     result.toBool() == true
     *
     * @param _expression command to execute
     * @param _result The return value of the command
     */
    void slotGetValue(QString _expression, QVariant& _result );

  /** @} */

  //===========================================================================
    /** @name Scenegraph redraw handling
      * @{ */
  //===========================================================================

  private slots:

    /// Called to check if the scenegraph needs to be redrawn
    void checkScenegraphDirty();

  private:

    /// Timer that starts scenegraph check
    QTimer *scenegraphCheckTimer_;

    /// Holds the time since last redraw
    QTime *redrawTime_;

  /** @} */
  
  
  //===========================================================================
  /** @name Process Interface and Controls
  * @{ */
  //===========================================================================
  
  private:
    
    QList< JobInfo* >  currentJobs;
    
    ProcessManagerWidget* processManager_;
    
    /// Find a job in the jobslist
    bool getJob(QString _jobId, int& _index);
    
  private slots:

    /// A job has been started by a plugin
    void slotStartJob( QString _jobId, QString _description , int _min , int _max,bool _blocking );
    
    /// A job state has been updated by a plugin
    void slotSetJobState(QString _jobId, int _value );
    
    /// A job's widget caption has been updated by a plugin
    void slotSetJobName(QString _jobId, QString _name );
    
    /// A job's widget's status text has been updated by a plugin
    void slotSetJobDescription(QString _jobId, QString _text );
    
    /// A job state has been canceled by a plugin
    void slotCancelJob(QString _jobId );
    
    /// A job state has been finished by a plugin
    void slotFinishJob(QString _jobId );
    
    /// Called by dialogs if cancel button is pressed
    void slotJobCancelRequested(QString _jobId);
    
  signals:
    
    void jobCanceled( QString _jobId );
    
  /** @} */
  
  //===========================================================================
  /** @name Object Manager
  * @{ */
  //===========================================================================

  private slots:
    
    /// This slot is called by the object manager when a new object is created
    void newObject(int _objectId);
    
    /// This slot is called by the object manager when an object is deleted
    void deletedObject(int _objectId);    
    
  /** @} */
  
  
  private:
    /** \brief OpenGL capability check 
    *
    * Checks if the OpenGL Capabilities of the graphics card are sufficient and
    * prints an error message if not.
    */
    bool checkOpenGLCapabilities();
    
    /** \brief Checks for library inconsistencies
    *
    * Checks if the used libraries are consistent
    */
    bool checkLibraryVersions();
  
  
  private :

  /// Id for the next backup
  int nextBackupId_;
  
  /// Id for the next backup group
  int nextBackupGroupId_;

  /// Logger interfaces between plugins and core logger
  std::vector<PluginLogger*> loggers_;

  /// File-Plugins
  std::vector<fileTypes> supportedTypes_;
  
  /// Type-Plugins
  std::vector<dataTypes> supportedDataTypes_;

  private :
    ///Pointer to the data rootNode;
    BaseObject* objectRoot_;

    /// The main applications widget ( only created in gui mode )
    CoreWidget* coreWidget_;

    /// SplashScreen, only used in gui mode
    QSplashScreen* splash_;

    /// Last Splash message;
    QString splashMessage_;

    /// List of available draw modes
    QVector<ViewMode*> viewModes_;

    /// If enabled, this timer will block screen refresh if done more then 30 times per second.
    QTimer* redrawTimer_;


};

/// Special print function for core logger
QScriptValue myPrintFunction(QScriptContext *context, QScriptEngine *engine);

//=============================================================================
#endif // MVIEWWIDGET_HH defined
//=============================================================================