sf::xgl::Helper Class Reference

Keeps track of color. More...

#include <Helper.h>

Public Types
typedef Matrix44::value_type	value_type

Public Member Functions
	Helper (ShaderProgram *sp)
	Create helper for a shader program.
	Helper (Dynamic *dynamic=nullptr)
	Create helper for a dynamic object which shader program is used to initialize the helper. Method setVertex() passes the data to the given dynamic object as are methods beginMode() and endMode().
void	setFlags (bool solid, bool paint=false)
	Helper flags which determine how the helper is active.
void	setCameraAndModelMatrix (const QMatrix4x4 &camera, const QMatrix4x4 &model)
	Sets the camera and model matrices which needed for old style OpenGL.
bool	isSolid () const
	Gets the solid flag.
bool	isPainting () const
	Gets the paint flag.
void	pushMatrix ()
	Pushes the current matrix to stack.
void	popMatrix ()
	Pops the stored matrix from stack.
void	pushCulling (CullingState state)
	Pushes the current culling settings to stack.
void	popCulling ()
	Pops the stored culling settings to stack.
Matrix44 &	matrix ()
	Gets the current matrix to modify.
void	translate (value_type x, value_type y, value_type z)
	Performs a translation on the current matrix. Compatible with the OpenGL function.
void	rotate (value_type angle, value_type x, value_type y, value_type z)
	Performs a rotation on the current matrix. Compatible with the OpenGL function.
void	setColor (const Color &color)
	Sets the current color using a QColor type.
void	setColor (const QColor &color)
	Sets the current color using a QColor type.
void	setColor (float r, float g, float b, float a)
	Sets the current color using the rgba values. Compatible with the OpenGL function glColorXXX.
void	setLineWidth (float width=1.0f)
	Sets the line width for GL_LINES and GL_LINE_STRIP.
void	render (VertexArrayBase *object, bool is_model=true)
	Draws the element setting some shader uniforms depending on the given arguments.
void	render (const std::function< void()> &callback, bool is_model=true)
	Sets the tracked state before rendering using the callback.
void	beginMode (GLenum mode)
void	endMode ()
void	setNormal (double x, double y, double z)
void	setVertex (double x, double y, double z)
void	setVertex (Vector3D vec)
void	setTexCoord (double x, double y)
void	drawSphere (double radius, int slices, int stacks)
void	drawDisk (double innerRadius, double outerRadius, int slices, int loops)
void	drawCylinder (double baseRadius, double topRadius, double height, int slices, int stacks)
void	drawPlaneLines (const Vector3D &a, const Vector3D &b, const Vector3D &, const Vector3D &d, int w_lines, int h_lines)
ShaderProgram *	shaderProgram ()
	Gets the Shader program.

Detailed Description

Keeps track of color.

Member Typedef Documentation

value_type

typedef Matrix44::value_type sf::xgl::Helper::value_type

Type to use for OpenGL like functions.

Constructor & Destructor Documentation

Helper() [1/2]

sf::xgl::Helper::Helper ( ShaderProgram *  sp )

explicit

Create helper for a shader program.

Helper() [2/2]

sf::xgl::Helper::Helper ( Dynamic *  dynamic = nullptr )

explicit

Create helper for a dynamic object which shader program is used to initialize the helper. Method setVertex() passes the data to the given dynamic object as are methods beginMode() and endMode().

Member Function Documentation

beginMode()

void sf::xgl::Helper::beginMode

(

GLenum

mode

)

drawCylinder()

void sf::xgl::Helper::drawCylinder	(	double	baseRadius,
		double	topRadius,
		double	height,
		int	slices,
		int	stacks
	)

drawDisk()

void sf::xgl::Helper::drawDisk	(	double	innerRadius,
		double	outerRadius,
		int	slices,
		int	loops
	)

drawPlaneLines()

void sf::xgl::Helper::drawPlaneLines	(	const Vector3D &	a,
		const Vector3D &	b,
		const Vector3D &	,
		const Vector3D &	d,
		int	w_lines,
		int	h_lines
	)

drawSphere()

void sf::xgl::Helper::drawSphere	(	double	radius,
		int	slices,
		int	stacks
	)

endMode()

void sf::xgl::Helper::endMode

(

)

isPainting()

bool sf::xgl::Helper::isPainting

(

)

const

Gets the paint flag.

isSolid()

bool sf::xgl::Helper::isSolid

(

)

const

Gets the solid flag.

matrix()

Matrix44 & sf::xgl::Helper::matrix

(

)

Gets the current matrix to modify.

popCulling()

void sf::xgl::Helper::popCulling

(

)

Pops the stored culling settings to stack.

popMatrix()

void sf::xgl::Helper::popMatrix

(

)

Pops the stored matrix from stack.

pushCulling()

void sf::xgl::Helper::pushCulling

(

CullingState

state

)

Pushes the current culling settings to stack.

pushMatrix()

void sf::xgl::Helper::pushMatrix

(

)

Pushes the current matrix to stack.

render() [1/2]

void sf::xgl::Helper::render	(	const std::function< void()> &	callback,
		bool	is_model = true
	)

Sets the tracked state before rendering using the callback.

Parameters

callback	Lambda function containing setVertex() methods wrappen with beginMode() and endMode().
is_model	Determines if the model matrix applies when rendering.

render() [2/2]

void sf::xgl::Helper::render	(	VertexArrayBase *	object,
		bool	is_model = true
	)

Draws the element setting some shader uniforms depending on the given arguments.

Parameters

object	When NULL the object is not drawn.
is_model	True when the object is part of the model and not a static object as e.g. axes for orientation.

rotate()

void sf::xgl::Helper::rotate	(	value_type	angle,
		value_type	x,
		value_type	y,
		value_type	z
	)

Performs a rotation on the current matrix. Compatible with the OpenGL function.

setCameraAndModelMatrix()

void sf::xgl::Helper::setCameraAndModelMatrix	(	const QMatrix4x4 &	camera,
		const QMatrix4x4 &	model
	)

Sets the camera and model matrices which needed for old style OpenGL.

Parameters

camera
model

setColor() [1/3]

void sf::xgl::Helper::setColor

(

const Color &

color

)

Sets the current color using a QColor type.

Parameters

color

Qt color value. Compatible with the OpenGL function glColorXXX.

setColor() [2/3]

void sf::xgl::Helper::setColor

(

const QColor &

color

)

Sets the current color using a QColor type.

Parameters

color

Qt color value. Compatible with the OpenGL function glColorXXX.

setColor() [3/3]

void sf::xgl::Helper::setColor	(	float	r,
		float	g,
		float	b,
		float	a
	)

Sets the current color using the rgba values. Compatible with the OpenGL function glColorXXX.

setFlags()

void sf::xgl::Helper::setFlags	(	bool	solid,
		bool	paint = false
	)

Helper flags which determine how the helper is active.

Parameters

solid	Determines if a filled solid or wire frame is rendered.
paint	Determines if OpenGL old style (true) or new style (false) is used for rendering.

setLineWidth()

void sf::xgl::Helper::setLineWidth

(

float

width = 1.0f

)

Sets the line width for GL_LINES and GL_LINE_STRIP.

Parameters

width

Default OpenGL value is 1.

setNormal()

void sf::xgl::Helper::setNormal	(	double	x,
		double	y,
		double	z
	)

setTexCoord()

void sf::xgl::Helper::setTexCoord	(	double	x,
		double	y
	)

setVertex() [1/2]

void sf::xgl::Helper::setVertex	(	double	x,
		double	y,
		double	z
	)

setVertex() [2/2]

void sf::xgl::Helper::setVertex

(

Vector3D

vec

)

shaderProgram()

ShaderProgram * sf::xgl::Helper::shaderProgram

(

)

Gets the Shader program.

Returns

Pointer to the instance.

translate()

void sf::xgl::Helper::translate	(	value_type	x,
		value_type	y,
		value_type	z
	)

Performs a translation on the current matrix. Compatible with the OpenGL function.

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

• Helper.h