QtGLContext Class Reference

#include <QtGLContext.h>

List of all members.

Signals
void	boxCreated (int x, int y, int x2, int y2)
void	saveImage ()

Public Member Functions
void	enableMirrorMode (int state)
	QtGLContext (QWidget *parent=0, const QGLWidget *sharedWidget=0, Qt::WFlags f=0)
	Constructor.
	QtGLContext (const QGLFormat &format, QWidget *parent=0, const QGLWidget *sharedWidget=0, Qt::WFlags f=0)
bool	setImage (unsigned char *imgP, const bool flipped=false)
	set image parameters 'flipped' is a vertical flip!
void	setImageData (const int width, const int height, const int pixeldepth)
	set the image data (for not doing this at every setImage call!)
void	setZoomRect (float ulX, float ulY, float lrX, float lrY)
	redefines the clipping rectangle for the texture drawing
	~QtGLContext ()

Protected Member Functions
void	drawTexture (float ul, float ur, float ll, float lr)
virtual void	initializeGL ()
unsigned int	NextLargerPowerOfTwo (unsigned int n)
	helper method
virtual void	paintGL ()
virtual void	resizeGL (int w, int h)

Private Attributes
QPoint	m_entry
QPoint	m_exit
bool	m_flipped
	if set to true image will be flipped vertically
unsigned int	m_height
unsigned char *	m_imgP
	pointer to the data of the displayed image
bool	m_mirrored
	if set to true image will be flipped horizontally
bool	m_mousePressed
unsigned int	m_pixeldepth
unsigned int	m_texHeight
	height of the texture buffer
float	m_texLowerRightX
float	m_texLowerRightY
unsigned int	m_texNameGL
	texture identifier
float	m_texUpperLeftX
	clipping rectangle for texture
float	m_texUpperLeftY
unsigned int	m_texWidth
	width of the texture buffer
unsigned int	m_width
	image parameters
unsigned char *	textureGL

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Detailed Description

An individual OPENGL context class for camera stuff using OpenCV.

Definition at line 33 of file QtGLContext.h.

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Constructor & Destructor Documentation

QtGLContext::QtGLContext	(	QWidget *	parent = 0,
		const QGLWidget *	sharedWidget = 0,
		Qt::WFlags	f = 0
	)

Constructor.

Definition at line 24 of file QtGLContext.cpp.

QtGLContext::QtGLContext	(	const QGLFormat &	format,
		QWidget *	parent = 0,
		const QGLWidget *	sharedWidget = 0,
		Qt::WFlags	f = 0
	)

QtGLContext::~QtGLContext

(

)

Definition at line 34 of file QtGLContext.cpp.

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Member Function Documentation

void QtGLContext::boxCreated ( int  x, int  y, int  x2, int  y2  )

signal

void QtGLContext::drawTexture ( float  ul, float  ur, float  ll, float  lr  )

protected

draws the texture sub image on the screen

Parameters:

ul	is the upper left coordinate
ur	is the upper right coordinate
ll	is the lower left coordinate
lr	is the lower right coordinate

Definition at line 86 of file QtGLContext.cpp.

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void QtGLContext::enableMirrorMode

(

int

state

)

Enables or disables the mirror mode for the camera. When activated, the camera live image is mirrored horicontally.

Parameters:

state

has to be Qt::Checked to enable the detection. All other states disable.

Definition at line 303 of file QtGLContext.cpp.

void QtGLContext::initializeGL ( )

protectedvirtual

Definition at line 41 of file QtGLContext.cpp.

unsigned int QtGLContext::NextLargerPowerOfTwo ( unsigned int  n )

protected

helper method

Definition at line 149 of file QtGLContext.cpp.

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void QtGLContext::paintGL ( )

protectedvirtual

Definition at line 60 of file QtGLContext.cpp.

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void QtGLContext::resizeGL ( int  w, int  h  )

protectedvirtual

Definition at line 230 of file QtGLContext.cpp.

void QtGLContext::saveImage ( )

signal

bool QtGLContext::setImage	(	unsigned char *	imgP,
		const bool	flipped = false
	)

set image parameters 'flipped' is a vertical flip!

Definition at line 237 of file QtGLContext.cpp.

void QtGLContext::setImageData	(	const int	width,
		const int	height,
		const int	pixeldepth
	)

set the image data (for not doing this at every setImage call!)

Definition at line 316 of file QtGLContext.cpp.

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void QtGLContext::setZoomRect	(	float	ulX,
		float	ulY,
		float	lrX,
		float	lrY
	)

redefines the clipping rectangle for the texture drawing

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Member Data Documentation

QPoint QtGLContext::m_entry

private

Definition at line 109 of file QtGLContext.h.

QPoint QtGLContext::m_exit

private

Definition at line 109 of file QtGLContext.h.

bool QtGLContext::m_flipped

private

if set to true image will be flipped vertically

Definition at line 97 of file QtGLContext.h.

unsigned int QtGLContext::m_height

private

Definition at line 95 of file QtGLContext.h.

unsigned char* QtGLContext::m_imgP

private

pointer to the data of the displayed image

Definition at line 93 of file QtGLContext.h.

bool QtGLContext::m_mirrored

private

if set to true image will be flipped horizontally

Definition at line 99 of file QtGLContext.h.

bool QtGLContext::m_mousePressed

private

Definition at line 110 of file QtGLContext.h.

unsigned int QtGLContext::m_pixeldepth

private

Definition at line 95 of file QtGLContext.h.

unsigned int QtGLContext::m_texHeight

private

height of the texture buffer

Definition at line 103 of file QtGLContext.h.

float QtGLContext::m_texLowerRightX

private

Definition at line 107 of file QtGLContext.h.

float QtGLContext::m_texLowerRightY

private

Definition at line 107 of file QtGLContext.h.

unsigned int QtGLContext::m_texNameGL

private

texture identifier

Definition at line 105 of file QtGLContext.h.

float QtGLContext::m_texUpperLeftX

private

clipping rectangle for texture

Definition at line 107 of file QtGLContext.h.

float QtGLContext::m_texUpperLeftY

private

Definition at line 107 of file QtGLContext.h.

unsigned int QtGLContext::m_texWidth

private

width of the texture buffer

Definition at line 101 of file QtGLContext.h.

unsigned int QtGLContext::m_width

private

image parameters

Definition at line 95 of file QtGLContext.h.

unsigned char* QtGLContext::textureGL

private

Definition at line 112 of file QtGLContext.h.

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

• direcs/src/QtGLContext.h
• direcs/src/QtGLContext.cpp