omni::ui::SceneGLView Class Reference

An OpenGL view for visualizing the scene of a session. More...

#include <SceneGLView.h>

Inheritance diagram for omni::ui::SceneGLView:

Collaboration diagram for omni::ui::SceneGLView:

Public Slots
void	changeZoom (int _value)
Public Slots inherited from omni::ui::GLView
void	triggerUpdate ()
void	paintGLDone ()

Signals
void	dataModelChanged ()

Public Member Functions
	SceneGLView (QWidget *_parent=nullptr)
	~SceneGLView ()
Public Member Functions inherited from omni::ui::GLView
	GLView (QWidget *_parent=nullptr)
virtual	~GLView ()
float	aspect () const
	Return aspect ratio of widget. More...
QPointF	mousePosition () const
	Return mouse position. More...
bool	initialized () const
	Return boolean value if widget has been initialized. More...
float	updateFrequency () const
	Return update frequency. More...
void	setUpdateFrequency (float _updateFrequency)
	Return update frequency. More...
Public Member Functions inherited from omni::ui::mixin::DataModel< DATAMODEL, SHARED >
	DataModel ()
void	setDataModel (pointer_type _dataModel)
	Set new data model. More...
pointer_type	dataModel ()
	Return pointer to data model. More...
const pointer_type	dataModel () const
	Return pointer to data model (const version) More...
virtual void	updateFrontend ()
	Push data to frontend widgets and all child widgets. More...
virtual void	updateDataModel ()
	Update the data model interface. More...

Protected Member Functions
virtual void	paintGL ()
	Paint GL routine. More...
virtual void	wheelEvent (QWheelEvent *event)
	Change zoom on mouse wheel event. More...
virtual void	keyPressEvent (QKeyEvent *event)
virtual void	mouseMoveEvent (QMouseEvent *event)
virtual void	showEvent (QShowEvent *event)
Protected Member Functions inherited from omni::ui::GLView
void	initializeGL ()
	Initialize OpenGL contents. More...
virtual void	resizeGL (int _w, int _h)
	Resize GL and viewport. More...
virtual void	mousePressEvent (QMouseEvent *)
	Mouse press event sets mouse position. More...
void	timerEvent (QTimerEvent *)
void	paintGLReady ()
Protected Member Functions inherited from omni::ui::mixin::Locked
template<typename F >
void	locked (F f)
	Lock widget and execute given functor. More...
bool	isLocked () const
	Return true if widget is locked. More...

Private Member Functions
virtual void	dataToFrontend ()
	Pure virtual method which determines how data model is represented in frontend. More...
virtual bool	frontendToData ()
	Return true if data has changed by front end. More...
bool	initialize ()
	Pure virtual function to initialize GL contents. More...

Additional Inherited Members
Public Types inherited from omni::ui::mixin::DataModel< DATAMODEL, SHARED >
typedef DATAMODEL	data_model_type
	Data type. More...
typedef DataModel < data_model_type, SHARED >	type
	This type. More...
typedef detail::PointerType < data_model_type, SHARED >	pointer_type_handler
	Pointer type handler. More...
typedef pointer_type_handler::type	pointer_type
	Derived pointer type. More...
Protected Attributes inherited from omni::ui::GLView
bool	updateTriggered_ = false
QPointF	mousePosition_
	Mouse position stored. More...

Detailed Description

An OpenGL view for visualizing the scene of a session.

Constructor & Destructor Documentation

omni::ui::SceneGLView::SceneGLView

(

QWidget *

_parent = nullptr

)

                                             :
      GLView(_parent)
    {}

omni::ui::SceneGLView::~SceneGLView

(

)

    {}

Member Function Documentation

void omni::ui::SceneGLView::changeZoom ( int  _value )

slot

    {
      if (!dataModel()) return;

      auto *_cam = dataModel()->scene().camera();

      if (!_cam) return;

      _cam->setDistance(_value / 5.0);
      triggerUpdate();
    }

void omni::ui::SceneGLView::dataModelChanged ( )

signal

void omni::ui::SceneGLView::dataToFrontend ( )

privatevirtual

Pure virtual method which determines how data model is represented in frontend.

Implements omni::ui::mixin::DataModel< DATAMODEL, SHARED >.

    {
      makeCurrent();
    }

virtual bool omni::ui::SceneGLView::frontendToData ( )

inlineprivatevirtual

Return true if data has changed by front end.

Implements omni::ui::mixin::DataModel< DATAMODEL, SHARED >.

                                             {
          return false;
        }

bool omni::ui::SceneGLView::initialize ( )

privatevirtual

Pure virtual function to initialize GL contents.

Implements omni::ui::GLView.

    {
      dataModel()->makeVisualizer();
      dataModel()->visualizer()->update();

      if (dataModel()->canvas()) {
        dataModel()->canvas()->update();
      }

      dataModel()->scene().updateGrid();
      dataModel()->scene().updateLights();
      return true;
    }

void omni::ui::SceneGLView::keyPressEvent ( QKeyEvent *  event )

protectedvirtual

    {}

void omni::ui::SceneGLView::mouseMoveEvent ( QMouseEvent *  event )

protectedvirtual

    {
      if (!dataModel()) return;

      auto *_cam = dataModel()->scene().camera();

      if ((event->buttons() & Qt::LeftButton) && _cam)
      {
        if (event->modifiers() & Qt::ShiftModifier)
        {
          _cam->strafe((event->pos().x() - mousePosition().x()) / 20.0);
          _cam->lift((event->pos().y() - mousePosition().y()) / 20.0);
        }
        else
        {
          if (!(event->modifiers() & Qt::ControlModifier)) _cam->track(
              event->pos().x() - mousePosition().x(),
              event->pos().y() - mousePosition().y(), 0);
        }
      }

      this->mousePosition_ = event->pos();
      triggerUpdate();
    }

void omni::ui::SceneGLView::paintGL ( )

protectedvirtual

Paint GL routine.

Draw auxiliary elements of canvas, like bounding boxes etc

Reimplemented from omni::ui::GLView.

    {
      if (!dataModel()) return;

      auto *_vizSession = dataModel()->visualizer();
      if (!_vizSession) return;

      auto& _scene = dataModel()->scene();

      withCurrentContext([&](QOpenGLFunctions& _) {
        _.glClear(
          GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
        visual::viewport(this);

        _vizSession->update();

        _scene.camera()->setup(aspect());

        glMatrixMode(GL_MODELVIEW);
        glLoadIdentity();
        _scene.updateLights();

        _.glEnable(GL_BLEND);
        _.glEnable(GL_DEPTH_TEST);
        _vizSession->drawCanvasFor3DView();

        _vizSession->drawProjectors(_scene.displayProjectors());
        _vizSession->drawCanvasWithFrustumIntersections(_scene.
                                                        displayProjectedAreas());
        _vizSession->drawProjectorHalos(_scene.displayProjectors());

        /// Draw auxiliary elements of canvas, like bounding boxes etc

        dataModel()->canvas()->drawAux();

        _scene.drawGrid();
      });
      paintGLDone();
    }

void omni::ui::SceneGLView::showEvent ( QShowEvent *  event )

protectedvirtual

                                                 {
      makeCurrent();
      dataModel()->makeVisualizer();
      dataModel()->visualizer()->update();

      if (dataModel()->canvas()) {
        dataModel()->canvas()->update();
      }

      dataModel()->scene().updateGrid();
      dataModel()->scene().updateLights();
    }

void omni::ui::SceneGLView::wheelEvent ( QWheelEvent *  event )

protectedvirtual

Change zoom on mouse wheel event.

    {
      if (!dataModel()) return;

      auto *_cam = dataModel()->scene().camera();

      if (!_cam) return;

      float _r = event->delta() / 100.0;
      _cam->track(0, 0, _r);

      auto _size = dataModel()->scene().size();
      _cam->limitDistance(_size * 0.1, _size * 5.0);
      triggerUpdate();
    }

---

The documentation for this class was generated from the following files:

• include/omni/ui/SceneGLView.h
• src/lib/ui/SceneGLView.cpp