mrpt::opengl::mrptEventGLPreRender Class Reference

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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.

#include <mrpt/opengl/COpenGLViewport.h>

Inheritance diagram for mrpt::opengl::mrptEventGLPreRender:

List of all members.

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

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Constructor & Destructor Documentation

mrpt::opengl::mrptEventGLPreRender::mrptEventGLPreRender

(

const COpenGLViewport *

obj

)

[inline]

Definition at line 376 of file COpenGLViewport.h.

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Member Function Documentation

virtual void mrpt::opengl::mrptEventGLPreRender::do_nothing

(

)

[inline, protected, virtual]

Just to allow this class to be polymorphic.

Reimplemented from mrpt::utils::mrptEvent.

Definition at line 374 of file COpenGLViewport.h.

template<class EVENTTYPE >

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

(

)

const [inline, inherited]

Definition at line 66 of file mrptEvent.h.

template<class EVENTTYPE >

bool mrpt::utils::mrptEvent::isOfType

(

)

const [inline, inherited]

Definition at line 63 of file mrptEvent.h.

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Member Data Documentation

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

Definition at line 377 of file COpenGLViewport.h.

mrpt::system::TTimeStamp mrpt::utils::mrptEvent::timestamp [inherited]

Definition at line 68 of file mrptEvent.h.