sf::OpenGLRenderer Class Reference

Pure virtual class to implement rendering separated from the widget and makes the sf::OpenGLWidget the placeholder. More...

#include <OpenGLRenderer.h>

Inheritance diagram for sf::OpenGLRenderer:

Collaboration diagram for sf::OpenGLRenderer:

Public Member Functions
	OpenGLRenderer (OpenGLWidget *widget, QOpenGLShaderProgram *sp)
	Constructor passing the widget which has the OpenGL context. The owner is the shader program object.
	~OpenGLRenderer () override=default
	Virtual destructor.
bool	setup ()
	Call overridden method generate() after teh shader program has been linked.
void	render ()
	Call overridden method render() after teh shader program has been linked.
OpenGLWidget *	getWidget () const
	Gets the owning widget which is calling the shots.
virtual void	changedProperty ()=0
	Called by sf::OpenGLWidget when a property has changed.
virtual void	setIndexValue (int index, QVariant value)=0
	Sets an arbitrary value on the derived- or subclass.
bool	isMain () const
	Tells if this instance is the first renderer or not.

Static Public Member Functions
static void	initialize (OpenGLWidget *widget)
	Called by sf::OpenGLWidget::initializeGL to initialize the OpenGL context for derived classes.

Protected Member Functions
virtual void	generate ()=0
	Called by setup() and (re-)generates the vertices for the drawn 3D-objects.
virtual void	paint ()=0
	Called by from the render() method.
virtual void	draw ()=0
	Called by from the render() method.

Protected Attributes
const QMatrix4x4 &	_projectionMatrix
	Easy of access reference to the projection matrix from the widget.
const QMatrix4x4 &	_cameraMatrix
	Easy of access reference to the camera matrix from the sf::OpenGLWidget.
const QMatrix4x4 &	_lightPositionMatrix
	Easy of access reference to the light position matrix from the sf::OpenGLWidget.
const QMatrix4x4 &	_lightDirectionMatrix
	Easy of access reference to the light direction matrix from the sf::OpenGLWidget.
const QMatrix4x4 &	_modelMatrix
	Easy of access reference to the model matrix from the sf::OpenGLWidget.

Detailed Description

Pure virtual class to implement rendering separated from the widget and makes the sf::OpenGLWidget the placeholder.

Constructor & Destructor Documentation

OpenGLRenderer()

sf::OpenGLRenderer::OpenGLRenderer ( OpenGLWidget *  widget, QOpenGLShaderProgram *  sp  )

explicit

Constructor passing the widget which has the OpenGL context. The owner is the shader program object.

~OpenGLRenderer()

sf::OpenGLRenderer::~OpenGLRenderer ( )

overridedefault

Virtual destructor.

Member Function Documentation

changedProperty()

virtual void sf::OpenGLRenderer::changedProperty ( )

pure virtual

Called by sf::OpenGLWidget when a property has changed.

Implemented in sf::xgl::DemoRenderer, and sf::xgl::NipscanRenderer.

draw()

virtual void sf::OpenGLRenderer::draw ( )

protectedpure virtual

Called by from the render() method.

Implemented in sf::xgl::DemoRenderer, and sf::xgl::NipscanRenderer.

generate()

virtual void sf::OpenGLRenderer::generate ( )

protectedpure virtual

Called by setup() and (re-)generates the vertices for the drawn 3D-objects.

Implemented in sf::xgl::DemoRenderer, and sf::xgl::NipscanRenderer.

getWidget()

OpenGLWidget * sf::OpenGLRenderer::getWidget

(

)

const

Gets the owning widget which is calling the shots.

initialize()

static void sf::OpenGLRenderer::initialize ( OpenGLWidget *  widget )

static

Called by sf::OpenGLWidget::initializeGL to initialize the OpenGL context for derived classes.

isMain()

bool sf::OpenGLRenderer::isMain

(

)

const

Tells if this instance is the first renderer or not.

Returns

paint()

virtual void sf::OpenGLRenderer::paint ( )

protectedpure virtual

Called by from the render() method.

Implemented in sf::xgl::DemoRenderer, and sf::xgl::NipscanRenderer.

render()

void sf::OpenGLRenderer::render

(

)

Call overridden method render() after teh shader program has been linked.

setIndexValue()

virtual void sf::OpenGLRenderer::setIndexValue ( int  index, QVariant  value  )

pure virtual

Sets an arbitrary value on the derived- or subclass.

Parameters

index	Index like in an array.
value	Variant able to accept any value.

Implemented in sf::xgl::DemoRenderer, and sf::xgl::NipscanRenderer.

setup()

bool sf::OpenGLRenderer::setup

(

)

Call overridden method generate() after teh shader program has been linked.

Member Data Documentation

_cameraMatrix

const QMatrix4x4& sf::OpenGLRenderer::_cameraMatrix

protected

Easy of access reference to the camera matrix from the sf::OpenGLWidget.

_lightDirectionMatrix

const QMatrix4x4& sf::OpenGLRenderer::_lightDirectionMatrix

protected

Easy of access reference to the light direction matrix from the sf::OpenGLWidget.

_lightPositionMatrix

const QMatrix4x4& sf::OpenGLRenderer::_lightPositionMatrix

protected

Easy of access reference to the light position matrix from the sf::OpenGLWidget.

_modelMatrix

const QMatrix4x4& sf::OpenGLRenderer::_modelMatrix

protected

Easy of access reference to the model matrix from the sf::OpenGLWidget.

_projectionMatrix

const QMatrix4x4& sf::OpenGLRenderer::_projectionMatrix

protected

Easy of access reference to the projection matrix from the widget.

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

• OpenGLRenderer.h