PluginFunctions.cc

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//=============================================================================
//
//  Plugin Functions
//
//=============================================================================
 
#include <OpenFlipper/common/Types.hh>
#include <OpenFlipper/common/GlobalOptions.hh>
 
#include "PluginFunctions.hh"
#include "PluginFunctionsCore.hh"
 
#include <ACG/Scenegraph/SeparatorNode.hh>
#include <ACG/Scenegraph/MaterialNode.hh>
 
#include <QRandomGenerator>
 
namespace PluginFunctions {
 
static BaseObject* objectRoot_ = 0;
 
static std::vector< glViewer* > examiner_widgets_;
 
static std::vector< Viewer::ViewerProperties* > viewerProperties_;
 
static glViewer*  examiner_widget_;
 
static unsigned int activeExaminer_ = 0;
 
static bool internalLightHandling_ = true;
 
static SeparatorNode* dataRootNode_ = 0;
 
static SeparatorNode* dataSeparatorNode_ = 0;
 
static SeparatorNode* sceneGraphRootNodeGlobal_ = 0;
 
static SeparatorNode* sceneGraphRootNode_ = 0;
 
static Viewer::ViewerProperties dummyProperties(-1);
 
 
static ViewObjectMarker* defaultMarker_ = 0;
 
static OFGLWidget* shareGLWidget_ = 0;
 
static int viewerId_ = 0;
 
static int objectCounter_ = 0;
 
static int targetCounter_ = 0;
 
static std::map<int, BaseObject*> objectMap_;
 
QMap< std::string ,ACG::QtWidgets::SceneGraphWidgetGenerator* > sceneGraphGenerators_;
 
void setDataRoot( BaseObject* _root ) {
   objectRoot_ = _root;
}
 
int viewers( ) {
  return examiner_widgets_.size();
}
 
void disableExaminerLightHandling() {
  internalLightHandling_ = false;  
}
 
bool examinerLightHandling() {
  return internalLightHandling_;  
}
static QVector<QPair<QString, QString>> pluginCommandLineOptions_;
 
int viewerId() {
  return viewerId_;
}
 
void setViewers( const std::vector< glViewer* >& _viewerWidgets ) {
   PluginFunctions::examiner_widgets_ = _viewerWidgets;
   PluginFunctions::examiner_widget_ =  examiner_widgets_[0];
 
   // Generate a (hopefully) unique viewer id
   QTime time = QTime::currentTime();
   QRandomGenerator randi(time.hour() * 10 + time.minute() * 100 + time.second() * 1000 + time.msec() * 10000);
   viewerId_ = static_cast<int>(randi.generate());
}
 
void setViewerProperties( const std::vector< Viewer::ViewerProperties* >& _viewerProperties ) {
   PluginFunctions::viewerProperties_ = _viewerProperties;
}
 
void setActiveExaminer( const unsigned int _id ) {
  activeExaminer_ = _id;
}
 
glViewer* viewer(int  _viewerId ) {
   if ( _viewerId < 0 || _viewerId >= (int)examiner_widgets_.size() ) {
     std::cerr << "Requested unknown viewer with id : " << _viewerId << std::endl;
     return examiner_widgets_[activeExaminer()];
   }
 
   return( examiner_widgets_[_viewerId] );
}
 
unsigned int activeExaminer( ) {
  return activeExaminer_;
}
 
QString getEncodedExaminerView() {
  return getEncodedExaminerView(activeExaminer());
}
 
QString getEncodedExaminerView(int _viewerId) {
 
  QString view;
 
  if ( _viewerId < 0 || _viewerId >= (int)examiner_widgets_.size() ) {
     std::cerr << "Requested unknown viewer with id : " << _viewerId << std::endl;
     examiner_widgets_[activeExaminer()]->encodeView ( view );
     return view;
  }
 
  examiner_widgets_[_viewerId]->encodeView ( view );
  return view;
 
}
 
void setEncodedExaminerView( const QString& _view ) {
  setEncodedExaminerView( activeExaminer() , _view );
}
 
void setEncodedExaminerView(int _viewerId , QString _view ) {
 
  // Consistency check. If viewer id is wrong, we set the currently active viewer.
  if ( _viewerId < 0 || _viewerId >= (int)examiner_widgets_.size() ) {
     std::cerr << "Requested unknown viewer with id : " << _viewerId << std::endl;
     examiner_widgets_[activeExaminer()]->decodeView ( _view );
     return;
  }
 
  examiner_widgets_[_viewerId]->decodeView ( _view );
}
 
void setDataSeparatorNodes( SeparatorNode* _dataSeparatorNode ) {
  
  // The function should only be called once by the core. 
 
  // Set the separatorNode
  PluginFunctions::dataSeparatorNode_ = _dataSeparatorNode;
 
  
  if ( PluginFunctions::dataSeparatorNode_->nChildren() != 1 ){
    std::cerr << "Only one child allowed for dataSeparatorNode on initialization!" << std::endl;
    std::cerr << "The Core has initialized the scenegraph in a strange way!" << std::endl;
  }
  
  // Set the root node for the data objects
  // which has to be a child of the dataSeparatorNode_
  PluginFunctions::dataRootNode_ = dynamic_cast<ACG::SceneGraph::SeparatorNode*> (*(PluginFunctions::dataSeparatorNode_->childrenBegin()) );
  
}
 
void setSceneGraphRootNode( SeparatorNode* _root_node ) {
   PluginFunctions::sceneGraphRootNode_ = _root_node;
}
 
void setSceneGraphRootNodeGlobal( SeparatorNode* _root_node ) {
   PluginFunctions::sceneGraphRootNodeGlobal_ = _root_node;
}
 
bool getPickedObject(const size_t _node_idx , BaseObjectData*& _object) {
  for (auto* o_it : PluginFunctions::objects(PluginFunctions::ALL_OBJECTS) ) {
    if ( o_it->picked( _node_idx ) ) {
      _object = o_it;
      return true;
    }
  }
  return false;
}
 
 
bool getSourceIdentifiers( std::vector<int>& _identifiers  ) {
  _identifiers.clear();
 
  for (auto* o_it : PluginFunctions::objects(PluginFunctions::ALL_OBJECTS) ) {
    if ( o_it->source() )
      _identifiers.push_back ( o_it->id() );
  }
  return ( ! _identifiers.empty() );
}
 
bool getTargetIdentifiers( std::vector<int>& _identifiers  ) {
  _identifiers.clear();
 
  for (auto* o_it : PluginFunctions::objects(PluginFunctions::ALL_OBJECTS) ) {
    if ( o_it->target() )
      _identifiers.push_back ( o_it->id() );
  }
  return ( !_identifiers.empty() );
}
 
// ===============================================================================
// Get objects
// ===============================================================================
 
bool getObject(  const int _identifier , BaseObject*& _object ) {
 
  if ( _identifier == -1 )
    return false;
 
  // Obsolete:
  //_object = objectRoot_->childExists( _identifier );
  
  // Search for specified object in object map:
  std::map<int, BaseObject*>::iterator it;
  it = objectMap_.find(_identifier);
  // Get object
  _object = (it != objectMap_.end() ? it->second : 0);
  
  return ( _object != 0 );
}
 
bool getObject(  const int _identifier , BaseObjectData*& _object ) {
 
  if ( _identifier == -1 )
    return false;
 
  // Obsolete: BaseObject* object = objectRoot_->childExists( _identifier );
  
  // Search for specified object in object map:
  std::map<int, BaseObject*>::iterator it;
  it = objectMap_.find(_identifier);
  // Get object
  BaseObject* object = (it != objectMap_.end() ? it->second : 0);
  
  _object = dynamic_cast< BaseObjectData* >(object);
  return ( _object != 0 );
}
 
int getObjectId( const QString& _name ) {
  if(_name.isEmpty()) return -1;
 
  BaseObject* object = objectRoot_->childExists( _name );
  return object ? object->id() : -1;
}
 
// ===============================================================================
// ===============================================================================
 
bool objectExists(  const int _identifier ) {
 
  if ( _identifier == -1 )
    return false;
 
  BaseObject* object = objectRoot_->childExists( _identifier );
  return ( object != 0 );
}
 
//===============================================================================
 
bool getAllMeshes( std::vector<int>& _identifiers  ) {
 
  _identifiers.clear();
 
  // find changed manipulator
  for (auto* o_it : PluginFunctions::objects(PluginFunctions::ALL_OBJECTS,typeId("TriangleMesh")) ) {
    _identifiers.push_back( o_it->id() );
  }
 
  return (!_identifiers.empty());
}
 
bool getAllObjectIdentifiers( std::vector<int>& _identifiers  ) {
 
  _identifiers.clear();
 
  // find changed manipulator
  for (auto* o_it : PluginFunctions::objects(PluginFunctions::ALL_OBJECTS) ) {
    _identifiers.push_back( o_it->id() );
  }
 
  return ( !_identifiers.empty() );
}
 
void setBackColor( OpenMesh::Vec4f _color) {
  for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
    PluginFunctions::viewerProperties(i).backgroundColor(_color);
}
 
void setFixedView(int _mode, int _viewer ) {
 
  if ( (_viewer != ACTIVE_VIEWER ) && ( ( _viewer < 0 ) || _viewer >= (int)examiner_widgets_.size()) ){
    std::cerr << "Unable to set fixed view. Wrong viewer id (" << _viewer << ")" << std::endl;
    return;
  }
 
  switch ( _mode ){
    case VIEW_TOP : //TOP
      PluginFunctions::viewingDirection( ACG::Vec3d(0.0, -1.0, 0.0), ACG::Vec3d(0.0, 0.0, -1.0), _viewer );
      PluginFunctions::allowRotation(!PluginFunctions::viewerProperties().rotationLocked(), _viewer);
      break;
    case VIEW_BOTTOM : //BOTTOM
      PluginFunctions::viewingDirection( ACG::Vec3d(0.0, 1.0, 0.0), ACG::Vec3d(0.0, 0.0, -1.0), _viewer );
      PluginFunctions::allowRotation(!PluginFunctions::viewerProperties().rotationLocked(), _viewer);
      break;
    case VIEW_LEFT : //LEFT
      PluginFunctions::viewingDirection( ACG::Vec3d(1.0, 0.0, 0.0), ACG::Vec3d(0.0, 1.0, 0.0), _viewer );
      PluginFunctions::allowRotation(!PluginFunctions::viewerProperties().rotationLocked(), _viewer);
      break;
    case VIEW_RIGHT : //RIGHT
      PluginFunctions::viewingDirection( ACG::Vec3d(-1.0, 0.0, 0.0), ACG::Vec3d(0.0, 1.0, 0.0), _viewer );
      PluginFunctions::allowRotation(!PluginFunctions::viewerProperties().rotationLocked(), _viewer);
      break;
    case VIEW_FRONT : //FRONT
      PluginFunctions::viewingDirection( ACG::Vec3d(0.0, 0.0, -1.0), ACG::Vec3d(0.0, 1.0, 0.0), _viewer );
      PluginFunctions::allowRotation(!PluginFunctions::viewerProperties().rotationLocked(), _viewer);
      break;
    case VIEW_BACK : //BACK
      PluginFunctions::viewingDirection( ACG::Vec3d(0.0, 0.0, 1.0), ACG::Vec3d(0.0, 1.0, 0.0), _viewer );
      PluginFunctions::allowRotation(!PluginFunctions::viewerProperties().rotationLocked(), _viewer);
      break;
    default : //Free View
      PluginFunctions::allowRotation(true, _viewer);
      break;
  }
 
  if ( _viewer == ACTIVE_VIEWER )
    viewerProperties(activeExaminer()).currentViewingDirection( _mode );
  else
    viewerProperties( _viewer ).currentViewingDirection( _mode );
}
 
QPoint mapToGlobal(const QPoint _point ) {
  return examiner_widgets_[activeExaminer_]->glMapToGlobal(_point);
}
 
QPoint mapToLocal( const QPoint _point ) {
  return examiner_widgets_[activeExaminer_]->glMapFromGlobal(_point);
}
 
void setDrawMode( const ACG::SceneGraph::DrawModes::DrawMode& _mode , int _viewer) {
 
  if ( _viewer == ACTIVE_VIEWER )
    viewerProperties(activeExaminer()).drawMode(_mode);
  else if ( _viewer == ALL_VIEWERS )
    for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
      viewerProperties(i).drawMode(_mode);
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    viewerProperties(_viewer).drawMode(_mode);
  else
    std::cerr << "Requested illegal viewer for setting DrawMode!!" << std::endl;
 
}
 
ACG::SceneGraph::DrawModes::DrawMode drawMode( int _viewer ) {
  if ( _viewer == ACTIVE_VIEWER ) {
    return viewerProperties(activeExaminer()).drawMode();
  } else if ( _viewer == ALL_VIEWERS )
    std::cerr << "Please select viewer to get viewing direction!" << std::endl;
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    return viewerProperties(_viewer).drawMode();
  else
    std::cerr << "Requested illegal viewer for viewingDirection!!" << std::endl;
 
  return viewerProperties(activeExaminer()).drawMode();
}
 
//get a viewing ray for the active examiner x and y are in widgetspace
void viewingRay(int _x, int _y,
               ACG::Vec3d& _outOrigin, ACG::Vec3d& _outDirection)
{
  viewingRay(_x,_y,_outOrigin,_outDirection,activeExaminer_);
}
 
//get a viewing ray for the specified examiner x and y are in widgetspace
void viewingRay(int _x, int _y,
               ACG::Vec3d& _outOrigin, ACG::Vec3d& _outDirection, int _viewerIndex)
{
  viewerProperties(_viewerIndex).glState().viewing_ray(_x,_y,_outOrigin,_outDirection);
}
 
// Pick returning node index
bool scenegraphPick( ACG::SceneGraph::PickTarget _pickTarget, const QPoint &_mousePos, size_t &_nodeIdx, size_t &_targetIdx, ACG::Vec3d *_hitPointPtr=0 ) {
 
   return examiner_widgets_[activeExaminer_]->pick( _pickTarget,_mousePos,_nodeIdx,_targetIdx,_hitPointPtr );
}
 
// Pick returning node index
bool scenegraphPick( const unsigned int _examiner, ACG::SceneGraph::PickTarget _pickTarget, const QPoint &_mousePos, size_t &_nodeIdx, size_t &_targetIdx, ACG::Vec3d *_hitPointPtr=0 ) {
 
  if ( _examiner >= examiner_widgets_.size() ) {
    std::cerr << "Wrong examiner id" << std::endl;
    return false;
  }
  return examiner_widgets_[_examiner]->pick( _pickTarget,_mousePos,_nodeIdx,_targetIdx,_hitPointPtr );
}
 
 
// Pick returning object and calling refine
bool scenegraphPick( const unsigned int          _examiner ,
                     ACG::SceneGraph::PickTarget _pickTarget,
                     const QPoint &              _mousePos,
                     BaseObjectData*&            _object,
                     size_t &                    _targetIdx,
                     const bool                  _refine,
                     ACG::Vec3d *                _hitPointPtr ) {
 
  size_t nodeIdx = 0;
 
  bool ok = scenegraphPick(_examiner,_pickTarget,_mousePos, nodeIdx,_targetIdx,_hitPointPtr);
 
  // If successfully picked and object is found
  if ( ok && PluginFunctions::getPickedObject(nodeIdx, _object) ) {
 
    if ( _refine && (_hitPointPtr != 0) ) {
 
      // Map to correct coordinates in OpenGL
      const QPoint mouse_pos = PluginFunctions::adjustForDevicePixelRatio(_mousePos);
      double x = mouse_pos.x();
      double y = examiner_widget_->glHeight() - mouse_pos.y();
 
      ACG::Vec3d mousePoint3d;
      ACG::Vec3d direction;
 
      viewingRay(x,y,mousePoint3d,direction);
 
      *_hitPointPtr = _object->refinePick(_pickTarget,*_hitPointPtr, mousePoint3d , direction ,  _targetIdx );
 
    }
 
  }
 
  return ok;
}
 
// Pick returning object and calling refine
bool scenegraphPick( ACG::SceneGraph::PickTarget _pickTarget,
                     const QPoint &              _mousePos,
                     BaseObjectData*&            _object,
                     size_t &                    _targetIdx,
                     const bool                  _refine,
                     ACG::Vec3d *                _hitPointPtr ) {
 
  return scenegraphPick(activeExaminer_,_pickTarget,_mousePos, _object,_targetIdx,_refine,_hitPointPtr );
 
}
 
 
 
 
bool scenegraphRegionPick( ACG::SceneGraph::PickTarget                _pickTarget,
                           const QRegion&                             _region,
                           QList<QPair<size_t, size_t> >&             _list,
                           QVector<float>*                            _depths,
                           QVector<ACG::Vec3d>*                       _points)
{
  return examiner_widgets_[activeExaminer_]->pick_region( _pickTarget, _region, _list, _depths, _points);
}
 
bool scenegraphRegionPick( const unsigned int                         _examiner,
                           ACG::SceneGraph::PickTarget                _pickTarget,
                           const QRegion&                             _region,
                           QList<QPair<size_t, size_t> >&             _list,
                           QVector<float>*                            _depths,
                           QVector<ACG::Vec3d>*                       _points)
{
  if ( _examiner >= examiner_widgets_.size() ) {
    std::cerr << "Wrong examiner id" << std::endl;
    return false;
  }
  return examiner_widgets_[_examiner]->pick_region( _pickTarget, _region, _list, _depths, _points);
}
 
//Warning : Dont use template function as external static pointer for examiner widget is not resolved correctly!!
void traverse( ACG::SceneGraph::MouseEventAction  &_action ) {
  // Single pass action, as the mouse action will only update the graph.
  // If its changed, it will be set to dirty and an automatic redraw is triggered.
  ACG::SceneGraph::traverse(sceneGraphRootNode_, _action );
}
 
const std::string pickMode () {
  // No seperate draw modes available all should have the same so take first
  return viewerProperties().pickMode();
}
 
void pickMode ( const std::string& _mode) {
  // switch to default marker
  setViewObjectMarker (defaultViewObjectMarker ());
  viewerProperties().pickMode(_mode);
}
 
Viewer::ActionMode actionMode() {
   return viewerProperties().actionMode();
}
 
void actionMode ( Viewer::ActionMode _mode) {
 
  viewerProperties().actionMode(_mode);
}
 
void shareGLWidget(OFGLWidget *_widget)
{
  shareGLWidget_ = _widget;
}
 
OFGLWidget *shareGLWidget()
{
  return shareGLWidget_;
}
 
void getCurrentViewImage(QImage& _image) {
  viewer( activeExaminer() )->snapshot( _image );
}
 
Viewer::ViewerProperties& viewerProperties(int _id) {
  if ( _id >= (int)viewerProperties_.size() ) {
    std::cerr << " Error, requested properties for non-existing Viewer!" << std::endl;
    return dummyProperties;
  }
 
  if ( _id == -1 )
    _id = activeExaminer_;
 
  return ( *viewerProperties_[_id] );
 
}
 
void perspectiveProjection( int _viewer ) {
  if ( _viewer == ACTIVE_VIEWER ) {
    examiner_widgets_[activeExaminer_]->perspectiveProjection();
  } else if ( _viewer == ALL_VIEWERS )
    for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
      examiner_widgets_[i]->perspectiveProjection();
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    examiner_widgets_[_viewer]->perspectiveProjection();
  else
    std::cerr << "Requested illegal viewer for perspectiveProjection()!!" << std::endl;
}
 
void orthographicProjection( int _viewer ) {
  if ( _viewer == ACTIVE_VIEWER ) {
    examiner_widgets_[activeExaminer_]->orthographicProjection();
  } else if ( _viewer == ALL_VIEWERS )
    for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
      examiner_widgets_[i]->orthographicProjection();
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    examiner_widgets_[_viewer]->orthographicProjection();
  else
    std::cerr << "Requested illegal viewer for orthographicProjection()!!" << std::endl;
}
 
void setFOVY( double _fovy) {
  
  // Set FOVY for all viewers
  for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
    examiner_widgets_[i]->setFOVY(_fovy);
}
 
void allowRotation(bool _mode, int _viewer ) {
  if ( _viewer == ACTIVE_VIEWER ) {
    examiner_widgets_[activeExaminer_]->allowRotation(_mode);
  } else if ( _viewer == ALL_VIEWERS )
    for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
      examiner_widgets_[i]->allowRotation(_mode);
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    examiner_widgets_[_viewer]->allowRotation(_mode);
  else {
    std::cerr << "Requested illegal viewer for allowRotation!!" << std::endl;
    return;
  }
  
  if ( _viewer == ACTIVE_VIEWER )
    viewerProperties(activeExaminer()).rotationLocked( !_mode );
  else
    viewerProperties( _viewer ).rotationLocked( !_mode );
}
 
bool allowRotation( int _viewer ) {
 
  if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    return examiner_widgets_[_viewer]->allowRotation();
  else {
 
    std::cerr << "Requested illegal viewer for isRotationAllowed!!" << std::endl;
    return false;
  }
}
 
void setMainGLContext() {
  examiner_widget_->makeCurrent();
}
 
void viewingDirection(const ACG::Vec3d &_dir, const ACG::Vec3d &_up , int _viewer ) {
  if ( _viewer == ACTIVE_VIEWER ) {
    examiner_widgets_[activeExaminer_]->viewingDirection(_dir,_up);
  } else if ( _viewer == ALL_VIEWERS )
    for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
      examiner_widgets_[i]->viewingDirection(_dir,_up);
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    examiner_widgets_[_viewer]->viewingDirection(_dir,_up);
  else
    std::cerr << "Requested illegal viewer for viewingDirection!!" << std::endl;
}
 
void lookAt(const ACG::Vec3d& _eye, const ACG::Vec3d& _center, const ACG::Vec3d& _up, int _viewer) {
    
    if ( _viewer == ACTIVE_VIEWER ) {
        examiner_widgets_[activeExaminer_]->lookAt(_eye,_center, _up);
    } else if ( _viewer == ALL_VIEWERS )
        for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
            examiner_widgets_[i]->lookAt(_eye,_center, _up);
        else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
            examiner_widgets_[_viewer]->lookAt(_eye,_center, _up);
        else
            std::cerr << "Requested illegal viewer for viewingDirection!!" << std::endl;
}
 
const ACG::Vec3d trackBallCenter( int _viewer ) {
  if ( _viewer == ACTIVE_VIEWER ) {
    return examiner_widgets_[activeExaminer_]->trackBallCenter();
  } else if ( _viewer == ALL_VIEWERS )
    for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
      return examiner_widgets_[i]->trackBallCenter(  );
    else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
      return examiner_widgets_[_viewer]->trackBallCenter(  );
    else
      std::cerr << "Requested illegal viewer for setTrackBallCenter!!" << std::endl;
 
  return examiner_widgets_[activeExaminer_]->trackBallCenter();
}
 
void setTrackBallCenter(const ACG::Vec3d& _center, int _viewer ) {
  if ( _viewer == ACTIVE_VIEWER ) {
    examiner_widgets_[activeExaminer_]->setTrackBallCenter( _center );
  } else if ( _viewer == ALL_VIEWERS )
    for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
      examiner_widgets_[i]->setTrackBallCenter( _center );
    else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
      examiner_widgets_[_viewer]->setTrackBallCenter( _center );
    else
      std::cerr << "Requested illegal viewer for setTrackBallCenter!!" << std::endl;
}
 
void setScenePos(const ACG::Vec3d& _center,const double _radius, int _viewer ) {
  if ( _viewer == ACTIVE_VIEWER ) {
    examiner_widgets_[activeExaminer_]->setScenePos( _center, _radius );
  } else if ( _viewer == ALL_VIEWERS )
    for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
      examiner_widgets_[i]->setScenePos( _center, _radius );
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    examiner_widgets_[_viewer]->setScenePos( _center, _radius );
  else
    std::cerr << "Requested illegal viewer for setScenePos!!" << std::endl;
}
 
void setScenePos(const ACG::Vec3d& _center, int _viewer ) {
  if ( _viewer == ACTIVE_VIEWER ) {
    examiner_widgets_[activeExaminer_]->setScenePos( _center, examiner_widgets_[activeExaminer_]->scene_radius() );
  } else if ( _viewer == ALL_VIEWERS )
    for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
      examiner_widgets_[i]->setScenePos( _center, examiner_widgets_[i]->scene_radius() );
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    examiner_widgets_[_viewer]->setScenePos( _center, examiner_widgets_[_viewer]->scene_radius() );
  else
    std::cerr << "Requested illegal viewer for setScenePos!!" << std::endl;
}
 
void setSceneCenter(const ACG::Vec3d& _center, int _viewer) {
 
  if (_viewer == ACTIVE_VIEWER) {
    examiner_widgets_[activeExaminer_]->setSceneCenter(_center);
  } else if (_viewer == ALL_VIEWERS) {
 
    for (uint i = 0; i < examiner_widgets_.size(); ++i) {
      examiner_widgets_[i]->setSceneCenter(_center);
    }
  } else if ((_viewer >= 0) && _viewer < (int) examiner_widgets_.size()) {
    examiner_widgets_[_viewer]->setSceneCenter(_center);
  } else {
    std::cerr << "Requested illegal viewer for setSceneCenter!!" << std::endl;
  }
}
 
const ACG::Vec3d sceneCenter(int _viewer) {
 
  if (_viewer == ACTIVE_VIEWER) {
    return examiner_widgets_[activeExaminer_]->scene_center();
  } else if (_viewer == ALL_VIEWERS)
    std::cerr << "Please select viewer to get sceneCenter!" << std::endl;
  else if ((_viewer >= 0) && _viewer < (int) examiner_widgets_.size())
    return examiner_widgets_[_viewer]->scene_center();
  else
    std::cerr << "Requested illegal viewer for sceneCenter!!" << std::endl;
 
  return examiner_widgets_[activeExaminer_]->scene_center();
}
 
double sceneRadius() {
   return examiner_widgets_[activeExaminer_]->scene_radius();
}
 
double sceneRadius( int _viewer ) {
  if ( _viewer == ACTIVE_VIEWER ) {
    return examiner_widgets_[activeExaminer_]->scene_radius();
  } else if ( _viewer == ALL_VIEWERS )
    std::cerr << "Illegal request for scene radius. Please select one viewer!" << std::endl;
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    return examiner_widgets_[_viewer]->scene_radius();
  else
    std::cerr << "Requested illegal viewer for translate!!" << std::endl;
 
  return -1;
}
 
void setSceneRadius(double _radius, int _viewer ) {
  if ( _viewer == ACTIVE_VIEWER ) {
    examiner_widgets_[activeExaminer_]->setSceneRadius(_radius);
  } else if ( _viewer == ALL_VIEWERS )
    for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
      examiner_widgets_[i]->setSceneRadius(_radius);
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    examiner_widgets_[_viewer]->setSceneRadius(_radius);
  else
    std::cerr << "Requested illegal viewer for translate!!" << std::endl;
}
 
void translate( const ACG::Vec3d &_vector , int _viewer ) {
  if ( _viewer == ACTIVE_VIEWER ) {
    examiner_widgets_[activeExaminer_]->translate(_vector);
  } else if ( _viewer == ALL_VIEWERS )
    for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
      examiner_widgets_[i]->translate(_vector);
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    examiner_widgets_[_viewer]->translate(_vector);
  else
    std::cerr << "Requested illegal viewer for translate!!" << std::endl;
}
 
void rotate(const ACG::Vec3d&  _axis,
            const double       _angle,
            const ACG::Vec3d&  _center,
            int                _viewer )
{
  if ( _viewer == ACTIVE_VIEWER ) {
    examiner_widgets_[activeExaminer_]->rotate(_axis,_angle,_center);
  } else if ( _viewer == ALL_VIEWERS )
    for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
      examiner_widgets_[i]->rotate(_axis,_angle,_center);
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    examiner_widgets_[_viewer]->rotate(_axis,_angle,_center);
  else
    std::cerr << "Requested illegal viewer for rotate!!" << std::endl;
}
 
void viewHome(int _viewer) {
  if ( _viewer == ACTIVE_VIEWER ) {
    examiner_widgets_[activeExaminer_]->home();
  } else if ( _viewer == ALL_VIEWERS )
    for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
      examiner_widgets_[i]->home();
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    examiner_widgets_[_viewer]->home();
  else
    std::cerr << "Requested illegal viewer for viewHome!!" << std::endl;
}
 
void viewAll(int _viewer) {
  if ( _viewer == ACTIVE_VIEWER ) {
    examiner_widgets_[activeExaminer_]->viewAll();
  } else if ( _viewer == ALL_VIEWERS )
    for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
      examiner_widgets_[i]->viewAll();
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    examiner_widgets_[_viewer]->viewAll();
  else
    std::cerr << "Requested illegal viewer for viewAll!!" << std::endl;
}
 
ACG::Vec3d viewingDirection(int _viewer) {
  if ( _viewer == ACTIVE_VIEWER ) {
    return viewerProperties(activeExaminer_).glState().viewing_direction();
  } else if ( _viewer == ALL_VIEWERS )
    std::cerr << "Please select viewer to get viewing direction!" << std::endl;
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    return viewerProperties(_viewer).glState().viewing_direction();
  else
    std::cerr << "Requested illegal viewer for viewingDirection!!" << std::endl;
 
  return viewerProperties().glState().viewing_direction();
}
 
bool isProjectionOrthographic( int _viewer ) {
 
  if ( _viewer == ACTIVE_VIEWER) {
    return (examiner_widgets_[activeExaminer_]->projectionMode() == 0);
  } else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() ){
    return ( examiner_widgets_[_viewer]->projectionMode() == 0); //ORTHOGRAPHIC_PROJECTION ?
  } else
    std::cerr << "Requested illegal viewer for isProjectionOrthographic!!" << std::endl;
 
  return false;
}
 
ACG::Vec3d eyePos(int _viewer) {
  if ( _viewer == ACTIVE_VIEWER ) {
    return viewerProperties(activeExaminer_).glState().eye();
  } else if ( _viewer == ALL_VIEWERS )
    std::cerr << "Please select viewer to get eyePos!" << std::endl;
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    return viewerProperties(_viewer).glState().eye();
  else
    std::cerr << "Requested illegal viewer for eyePos!!" << std::endl;
 
  return viewerProperties().glState().eye();
}
 
ACG::Vec3d upVector(int _viewer) {
  if ( _viewer == ACTIVE_VIEWER ) {
    return viewerProperties(activeExaminer_).glState().up();
  } else if ( _viewer == ALL_VIEWERS )
    std::cerr << "Please select viewer to get up vector!" << std::endl;
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    return viewerProperties(_viewer).glState().up();
  else
    std::cerr << "Requested illegal viewer for up vector!!" << std::endl;
 
  return viewerProperties().glState().up();
}
 
DLLEXPORT
double fovy(int _viewer) {
    if ( _viewer == ACTIVE_VIEWER ) {
      return viewerProperties(activeExaminer_).glState().fovy();
    } else if ( _viewer == ALL_VIEWERS )
      std::cerr << "Please select viewer to get fovy!" << std::endl;
    else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
      return viewerProperties(_viewer).glState().fovy();
    else
      std::cerr << "Requested illegal viewer for fovy!!" << std::endl;
 
    return viewerProperties().glState().fovy();
}
 
void setViewObjectMarker(ViewObjectMarker * _marker)
{
  for ( uint i = 0 ; i < examiner_widgets_.size(); ++i )
    PluginFunctions::viewerProperties(i).objectMarker(_marker);
}
 
void setDefaultViewObjectMarker(ViewObjectMarker * _marker)
{
  defaultMarker_ = _marker;
}
 
ViewObjectMarker * defaultViewObjectMarker()
{
  return defaultMarker_;
}
 
QPoint adjustForDevicePixelRatio(const QPoint &point)
{
    return viewerProperties().adjustForDevicePixelRatio(point);
}
QPointF adjustForDevicePixelRatio(const QPointF &point)
{
    return viewerProperties().adjustForDevicePixelRatio(point);
}
 
 
ACG::SceneGraph::BaseNode* getSceneGraphRootNode() {
   return PluginFunctions::sceneGraphRootNode_;
}
 
ACG::SceneGraph::BaseNode* getRootNode() {
  return PluginFunctions::dataRootNode_;
}
 
void addGlobalStatusNode(ACG::SceneGraph::BaseNode* _node) {
 if (PluginFunctions::sceneGraphRootNode_){
    
    // get the current parent Node 
    ACG::SceneGraph::BaseNode* parent = sceneGraphRootNodeGlobal_->parent();
 
    // Move the node to the new parent
    _node->set_parent(parent);
    
    // move sceneGraphRootNodeGlobal_ to the new parent
    sceneGraphRootNodeGlobal_->set_parent(_node);
  }
}
 
void addGlobalNode(ACG::SceneGraph::BaseNode* _node){
  if (PluginFunctions::sceneGraphRootNode_)
    _node->set_parent( PluginFunctions::sceneGraphRootNodeGlobal_ );
}
 
 
void addObjectRenderingNode(ACG::SceneGraph::BaseNode* _node){
  if (PluginFunctions::sceneGraphRootNode_){
    
    // get the current parent Node 
    ACG::SceneGraph::BaseNode* parent = dataRootNode_->parent();
 
    // Move the node to the new parent
    _node->set_parent(parent);
    
    // move dataRootNode_ to the new parent
    dataRootNode_->set_parent(_node);
  }
  
}
 
int objectCount() {
  return(objectCounter_);
}
 
 
 
int targetCount() {
  return ( targetCounter_ );
}
 
int sourceCount() {
  int count = 0;
 
  // find changed manipulator
  for (auto* o_it : PluginFunctions::objects(PluginFunctions::SOURCE_OBJECTS) ) {
    ++count;
  }
 
  return ( count );
}
 
int visibleCount() {
  int count = 0;
 
  // find changed manipulator
  for (auto* o_it : PluginFunctions::objects(PluginFunctions::ALL_OBJECTS) ) {
    if ( o_it->visible() )
    ++count;
  }
 
  return ( count );
 
}
 
 
void get_all_objects( std::vector < BaseObjectData*>& _objects ) {
 
   _objects.clear();
 
  // find changed manipulator
  for (auto* o_it : PluginFunctions::objects(PluginFunctions::ALL_OBJECTS,DATA_ALL) ) {
    _objects.push_back( o_it );
  }
 
}
 
 
void flyTo (const ACG::Vec3d &_position, const ACG::Vec3d &_center, double _time) {
   examiner_widgets_[activeExaminer_]->flyTo(_position,_center,_time);
}
 
 
void flyTo (const ACG::Vec3d &_center, bool _move_back, double _time) {
  ACG::Vec3d eye = PluginFunctions::viewerProperties().glState().eye();
  ACG::Vec3d t = _center - eye;
  ACG::Vec3d e = eye + t * (_move_back ? -0.5f : 0.5f);
  examiner_widgets_[activeExaminer_]->flyTo(e, _center, _time);
}
 
 
void viewerSnapshot(int _viewer, QImage& _image, int _width, int _height, bool _alpha,
                    bool _hideCoordsys, int _samples) {
    
  if ( _viewer == ACTIVE_VIEWER ) {
    examiner_widgets_[activeExaminer_]->snapshot(_image, _width, _height, _alpha, _hideCoordsys, _samples);
  } else if ( _viewer == ALL_VIEWERS )
    std::cerr << "Please select viewer to get snapshot!" << std::endl;
  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
    examiner_widgets_[_viewer]->snapshot(_image, _width, _height, _alpha, _hideCoordsys, _samples);
  else
    std::cerr << "Requested illegal viewer for snapshot!!" << std::endl;
}
 
 
 
// ===============================================================================
// Getting data from objects and casting between them
// ===============================================================================
 
BaseObjectData* baseObjectData( BaseObject* _object ){
  if ( _object == 0 )
    return 0;
 
  return dynamic_cast< BaseObjectData* >(_object);
}
 
// ===============================================================================
// Get the root of the object structure
// ===============================================================================
BaseObject*& objectRoot() {
  return (objectRoot_);
}
 
void increaseObjectCount() {
  objectCounter_++;
}
 
// Increase the number of current Object
void decreaseObjectCount() {
  objectCounter_--;
  
  if ( objectCounter_ < 0 )
    std::cerr << "Deleted more objects than created!!!" << std::endl;
}
 
void increaseTargetCount() {
  targetCounter_++;
}
 
// Increase the number of current Object
void decreaseTargetCount() {
  targetCounter_--;
  
  if ( targetCounter_ < 0 )
    std::cerr << "target object counter underflow!!!" << std::endl;
}
 
// ===============================================================================
// Add an object to the internal object map
// ===============================================================================
void addObjectToMap(int _objectId, BaseObject* _object) {
    
    // Look if object's id already exists in map
    std::map<int, BaseObject*>::iterator it;
    it = objectMap_.find(_objectId);
    // If so return
    if(it != objectMap_.end()) return;
    
    // Add new object to map
    objectMap_.insert(std::pair<int, BaseObject*>(_objectId, _object));
}
 
// ===============================================================================
// Remove an object from the internal object map
// ===============================================================================
void removeObjectFromMap(int _objectId) {
    
    // Look if object exists in map
    std::map<int, BaseObject*>::iterator it;
    it = objectMap_.find(_objectId);
    
    // Erase entry
    if(it != objectMap_.end()) objectMap_.erase(it);
}
 
 
void addSceneGraphGenerator(ACG::QtWidgets::SceneGraphWidgetGenerator* _generator) {
  
   // Check if we already have a generator for this type.
  if ( sceneGraphGenerators_.contains( _generator->handles() ) ) 
    return;
 
  // Store the generator
  sceneGraphGenerators_[_generator->handles() ] = _generator;
}
 
 
QMap< std::string ,ACG::QtWidgets::SceneGraphWidgetGenerator* > getSceneGraphGeneratorList(){
  return sceneGraphGenerators_;
}
 
QString getOpenFileName(const QString &configProperty,
                        QWidget * parent, const QString & caption,
                        const QString & defaultDir, const QString & filter,
                        QString * selectedFilter, QFileDialog::Options options) {
 
    const QString dir = OpenFlipperSettings().value(configProperty, defaultDir).toString();
    const QString result = QFileDialog::getOpenFileName(parent, caption, dir,
                                                        filter, selectedFilter, options);
    if (result.length())
        OpenFlipperSettings().setValue(configProperty, result);
    return result;
}
 
QString getSaveFileName(const QString &configProperty,
                        QWidget * parent, const QString & caption,
                        const QString & defaultDir, const QString & filter,
                        QString * selectedFilter, QFileDialog::Options options,
                        const QString & defaultSuffix) {
 
    const QString dir = OpenFlipperSettings().value(configProperty, defaultDir).toString();
 
    /*
     * We don't use this convenience wrapper any more since it
     * prevents us from setting the default suffix.
     *
     * const QString result = QFileDialog::getSaveFileName(
     *     parent, caption, dir, filter, selectedFilter, options);
     */
 
    QFileDialog dialog(parent, caption, dir, filter);
    dialog.setOptions(options);
    dialog.setAcceptMode(QFileDialog::AcceptSave);
    if (selectedFilter && !selectedFilter->isEmpty())
        dialog.selectNameFilter(*selectedFilter);
    dialog.setDefaultSuffix(defaultSuffix);
    if (dialog.exec() == QDialog::Accepted) {
        if (selectedFilter)
            *selectedFilter = dialog.selectedNameFilter();
        QString result = dialog.selectedFiles().value(0);
        OpenFlipperSettings().setValue(configProperty, result);
        return result;
    }
    return QString();
}
 
QStringList collectObjectComments(bool visibleOnly, bool targetedOnly) {
    QStringList result;
    for (auto* o_it : PluginFunctions::objects(targetedOnly ? TARGET_OBJECTS : ALL_OBJECTS, DATA_ALL) ) {
        if (visibleOnly && !o_it->visible()) continue;
        result.append(o_it->getAllCommentsFlat());
    }
    return result;
}
 
QStringList collectObjectMaterials(bool visibleOnly, bool targetedOnly) {
    if (!ACG::SceneGraph::Material::support_json_serialization())
        return QStringList();
 
    QStringList result;
    for (auto* o_it : PluginFunctions::objects(targetedOnly ? TARGET_OBJECTS : ALL_OBJECTS, DATA_ALL) ) {
 
        if (visibleOnly && !o_it->visible()) continue;
 
        QString materialStr(QObject::tr("<not available>"));
        if (!o_it->materialNode())
            materialStr = QObject::tr("<not available: materialNode == null>");
        else
            materialStr = o_it->materialNode()->material().serializeToJson();
 
        if (!result.empty())
            result.last().append(QString::fromUtf8(","));
        result.append(QString::fromUtf8("\"%1\": %2").arg(o_it->name()).arg(materialStr));
    }
    return result;
}
 
void invalidatePickCaches() {
    for(size_t i = 0; i < examiner_widgets_.size(); ++i) {
        examiner_widgets_[i]->invalidatePickCache();
    }
}
 
ObjectRange objects(IteratorRestriction _restriction, DataType _dataType) {
    return ObjectRange(_restriction, _dataType);
}
 
ObjectReferenceRange objectReferences(IteratorRestriction _restriction, DataType _dataType) {
    return ObjectReferenceRange(_restriction, _dataType);
}
 
const QVector<QPair<QString, QString> > &pluginCommandLineOptions()
{
    return pluginCommandLineOptions_;
}
 
void setPluginCommandLineOptions(const QVector<QPair<QString, QString> > &_pluginCommandLineOptions)
{
    pluginCommandLineOptions_ = _pluginCommandLineOptions;
}
 
} // End namespace PluginFunctions