OsgViewerWidget Class Reference

Qt Widget for osgViewer::Viewer. More...

#include <OsgWidget.h>

Inheritance diagram for OsgViewerWidget:

Public Slots
virtual void	idle (double simulationTime=USE_REFERENCE_TIME)
	Do event and update traversal. More...
void	triggerRedraw ()
	Trigger a redraw in 1/60 sec. More...
void	toggleContinuousUpdate (bool activate)
	Toggle continous redraw (usefull for animation) More...
void	forceContinuousUpdate (bool force)
	Forces continous redraw (i.e. continuous redraw cannot be disabled via toggleContinousUpdate(false)) More...

Public Member Functions
	OsgViewerWidget (QWidget *parent=0)
virtual	~OsgViewerWidget ()
virtual void	paintGL ()
	Render the scenegraph by calling frame() (QGLWidget override) More...
virtual bool	paintGL2PS (const char *filename, int format)
	Render scene to postscript using GL2PS library. More...
bool	isContinuousUpdateForced () const
	Returns true if continous update was forced (i.e. continuous redraw cannot be disable via toggleContinousUpdate(false)) More...
osgViewer::Viewer overrides
Override default frame() function to split event and update traversals from pure rendering
virtual void	frame (double simulationTime=USE_REFERENCE_TIME)
osgViewer::View overrides (osgGA::GUIActionAdapter implementation)
virtual void	requestRedraw ()
virtual void	requestContinuousUpdate (bool needed=true)
virtual void	requestWarpPointer (float x, float y)
Public Member Functions inherited from OsgAdapterWidget
	OsgAdapterWidget (QWidget *parent=0)
virtual	~OsgAdapterWidget ()
osgViewer::GraphicsWindow *	getGraphicsWindow ()
const osgViewer::GraphicsWindow *	getGraphicsWindow () const

Public Attributes
unsigned long	idleCount

Additional Inherited Members
Signals inherited from OsgAdapterWidget
void	processEvents ()
Protected Member Functions inherited from OsgAdapterWidget
void	init ()
virtual void	resizeGL (int width, int height)
virtual void	keyPressEvent (QKeyEvent *event)
virtual void	keyReleaseEvent (QKeyEvent *event)
virtual void	mousePressEvent (QMouseEvent *event)
virtual void	mouseReleaseEvent (QMouseEvent *event)
virtual void	mouseMoveEvent (QMouseEvent *event)
virtual void	wheelEvent (QWheelEvent *event)
osgGA::GUIEventAdapter *	makeEventAdapter (QMouseEvent *event, osgGA::GUIEventAdapter::EventType type)
Protected Attributes inherited from OsgAdapterWidget
osg::ref_ptr < osgViewer::GraphicsWindowEmbedded >	_gw

Detailed Description

Qt Widget for osgViewer::Viewer.

The osgViewer::Viewer frame() function is splitted into two parts, namely

• idle() which does eventTraversal() and updateTraversal() for a frame

• frame() which renders the frame via renderingTraversals(). The purpose is to separate user interface update handling (as provided by OsgAdapterWidget) from rendering. idle() processes the osg EventQueues which are filled by OsgAdapterWidget. If a processed event needs a redraw it will call requestRedraw() or requestContinousUpdate() which then triggers the actual frame() rendering function.

  At the moment this class is laid out for single threading.

  Note

  Since we inherit from a Qt and an osg class, we have different naming conventions. Taking this into account i tried to stay with the Qt style for members associated with Qt (like idleTimer) and use osg style for members associated with osg (like _idleProcessed).

  Based on the osgviewerQT example.

  \author Max Hermann <mhermann[at]mail.cern.ch>

Constructor & Destructor Documentation

OsgViewerWidget::OsgViewerWidget

(

QWidget *

parent = 0

)

References OsgAdapterWidget::getGraphicsWindow(), idle(), and OsgAdapterWidget::processEvents().

OsgViewerWidget::~OsgViewerWidget ( )

virtual

Member Function Documentation

void OsgViewerWidget::forceContinuousUpdate ( bool  force )

inlineslot

Forces continous redraw (i.e. continuous redraw cannot be disabled via toggleContinousUpdate(false))

References toggleContinuousUpdate().

Referenced by EventMultiViewer::createTrackDetVisPerspective(), and EventViewerWidget::forceContinuousUpdate().

void OsgViewerWidget::frame ( double  simulationTime = USE_REFERENCE_TIME )

virtual

References idle().

Referenced by paintGL(), and paintGL2PS().

void OsgViewerWidget::idle ( double  simulationTime = USE_REFERENCE_TIME )

virtualslot

Do event and update traversal.

References idleCount.

Referenced by frame(), and OsgViewerWidget().

bool OsgViewerWidget::isContinuousUpdateForced ( ) const

inline

Returns true if continous update was forced (i.e. continuous redraw cannot be disable via toggleContinousUpdate(false))

Referenced by EventViewerWidget::isContinuousUpdateForced(), and EventMultiViewer::setActiveViewer().

void OsgViewerWidget::paintGL ( )

virtual

Render the scenegraph by calling frame() (QGLWidget override)

Reimplemented in MyCameraWidget.

References frame(), glPopAll(), and glPushAll().

Referenced by MyCameraWidget::paintGL().

bool OsgViewerWidget::paintGL2PS ( const char *  filename, int  format  )

virtual

Render scene to postscript using GL2PS library.

References frame().

Referenced by EventMultiViewer::exportActiveViewerTo().

virtual void OsgViewerWidget::requestContinuousUpdate ( bool  needed = true )

inlinevirtual

References toggleContinuousUpdate(), and triggerRedraw().

Referenced by MyCameraWidget::mousePressEvent(), and MyCameraWidget::mouseReleaseEvent().

virtual void OsgViewerWidget::requestRedraw ( )

inlinevirtual

References triggerRedraw().

Referenced by EventCameraWidget::mouseMoveEvent().

virtual void OsgViewerWidget::requestWarpPointer ( float  x, float  y  )

inlinevirtual

Todo:

implement

void OsgViewerWidget::toggleContinuousUpdate ( bool  activate )

slot

Toggle continous redraw (usefull for animation)

Referenced by forceContinuousUpdate(), requestContinuousUpdate(), and MyCameraWidget::setMouseMode().

void OsgViewerWidget::triggerRedraw ( )

slot

Trigger a redraw in 1/60 sec.

Referenced by EventViewerWidget::changeProjectionAlpha(), requestContinuousUpdate(), requestRedraw(), EventViewerWidget::setViewHome(), EventViewerWidget::setViewMode(), and EventViewerWidget::triggerRedraw().

Member Data Documentation

unsigned long OsgViewerWidget::idleCount

Referenced by idle().