mrpt::opengl::mrptEventGLPreRender Class Reference

Detailed Description

An event sent by an mrpt::opengl::COpenGLViewport just after clearing the viewport and setting the GL_PROJECTION matrix, and before calling the scene OpenGL drawing primitives.

While handling this event you can call OpenGL glBegin(),glEnd(),gl* functions or those in mrpt::opengl::gl_utils to draw stuff in the back of the normal objects contained in the COpenGLScene.

After processing this event, COpenGLViewport will change the OpenGL matrix mode into "GL_MODELVIEW" and load an identity matrix to continue rendering the scene objects as usual. Any change done to the GL_PROJECTION will have effects, so do a glPushMatrix()/glPopMatrix() if that is not your intention.

IMPORTANTE NOTICE: Event handlers in your observer class will most likely be invoked from an internal GUI thread of MRPT, so all your code in the handler must be thread safe.

Definition at line 385 of file COpenGLViewport.h.

#include <mrpt/opengl/COpenGLViewport.h>

Inheritance diagram for mrpt::opengl::mrptEventGLPreRender:

Public Member Functions
	mrptEventGLPreRender (const COpenGLViewport *obj)
template<class EVENTTYPE >
bool	isOfType () const
template<class EVENTTYPE >
const EVENTTYPE *	getAs () const
template<class EVENTTYPE >
EVENTTYPE *	getAsNonConst () const

Public Attributes
const COpenGLViewport *const	source_viewport
mrpt::system::TTimeStamp	timestamp

Protected Member Functions
virtual void	do_nothing ()
	Just to allow this class to be polymorphic. More...

Constructor & Destructor Documentation

mrpt::opengl::mrptEventGLPreRender::mrptEventGLPreRender ( const COpenGLViewport *  obj )

inline

Definition at line 390 of file COpenGLViewport.h.

Member Function Documentation

virtual void mrpt::opengl::mrptEventGLPreRender::do_nothing ( )

inlineprotectedvirtual

Just to allow this class to be polymorphic.

Reimplemented from mrpt::utils::mrptEvent.

Definition at line 388 of file COpenGLViewport.h.

template<class EVENTTYPE >

const EVENTTYPE* mrpt::utils::mrptEvent::getAs ( ) const

inlineinherited

Definition at line 46 of file mrptEvent.h.

template<class EVENTTYPE >

EVENTTYPE* mrpt::utils::mrptEvent::getAsNonConst ( ) const

inlineinherited

Definition at line 49 of file mrptEvent.h.

template<class EVENTTYPE >

bool mrpt::utils::mrptEvent::isOfType ( ) const

inlineinherited

Definition at line 43 of file mrptEvent.h.

Member Data Documentation

const COpenGLViewport* const mrpt::opengl::mrptEventGLPreRender::source_viewport

Definition at line 391 of file COpenGLViewport.h.

mrpt::system::TTimeStamp mrpt::utils::mrptEvent::timestamp

inherited

Definition at line 51 of file mrptEvent.h.