zbar::QZBarThread Class Reference

Inheritance diagram for zbar::QZBarThread:

Collaboration diagram for zbar::QZBarThread:

Classes
class	ScanImageEvent
class	VideoDeviceEvent
class	VideoEnabledEvent

Public Types
enum	EventType {   VideoDevice,   VideoEnabled,   ScanImage,   Exit }

Signals
void	decoded (int type, const QString &data)
void	decodedText (const QString &data)
void	update ()
void	videoOpened (bool opened)

Public Member Functions
	QZBarThread ()
	operator zbar_image_data_handler_t * () const
	cast this handler to the C handler More...
void	pushEvent (QEvent *e)

Public Attributes
bool	_videoOpened
QMutex	mutex
QWaitCondition	newEvent
QList< QEvent * >	queue
unsigned	reqHeight
unsigned	reqWidth
Window	window

Protected Member Functions
void	clear ()
void	enableVideo (bool enable)
virtual bool	event (QEvent *e)
virtual void	image_callback (Image &image)
	invoked by library when Image should be processed More...
void	openVideo (const QString &device)
void	processImage (Image &image)
void	run ()
virtual void	scanImageEvent (ScanImageEvent *event)
virtual void	videoDeviceEvent (VideoDeviceEvent *event)
virtual void	videoEnabledEvent (VideoEnabledEvent *event)

Private Attributes
QZBarImage *	image
bool	running
ImageScanner	scanner
Video *	video
bool	videoEnabled
bool	videoRunning

Member Enumeration Documentation

enum zbar::QZBarThread::EventType

Enumerator
VideoDevice
VideoEnabled
ScanImage
Exit

Constructor & Destructor Documentation

QZBarThread::QZBarThread

(

)

References scanner, and zbar::ImageScanner::set_handler().

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Member Function Documentation

void zbar::QZBarThread::clear ( )

inlineprotected

References zbar::Window::clear(), event(), image, image_callback(), scanImageEvent(), videoDeviceEvent(), and videoEnabledEvent().

Referenced by enableVideo(), openVideo(), run(), and scanImageEvent().

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void zbar::QZBarThread::decoded ( int  type, const QString &  data  )

signal

Referenced by image_callback(), and pushEvent().

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void zbar::QZBarThread::decodedText ( const QString &  data )

signal

Referenced by image_callback(), and pushEvent().

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void QZBarThread::enableVideo ( bool  enable )

protected

References clear(), zbar::Video::enable(), zbar::ImageScanner::enable_cache(), scanner, update(), video, videoEnabled, and videoRunning.

Referenced by event(), openVideo(), pushEvent(), run(), scanImageEvent(), and videoEnabledEvent().

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bool QZBarThread::event ( QEvent *  e )

protectedvirtual

References enableVideo(), Exit, running, ScanImage, scanImageEvent(), VideoDevice, videoDeviceEvent(), VideoEnabled, videoEnabledEvent(), and videoRunning.

Referenced by clear(), and run().

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void QZBarThread::image_callback ( Image &  image )

protectedvirtual

invoked by library when Image should be processed

Implements zbar::Image::Handler.

References test_zbar::data, decoded(), decodedText(), zbar::Image::symbol_begin(), zbar::Image::symbol_end(), and textFormat().

Referenced by clear().

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void QZBarThread::openVideo ( const QString &  device )

protected

References _videoOpened, clear(), DEFAULT_HEIGHT, DEFAULT_WIDTH, enableVideo(), zbar::Video::get_height(), zbar::Video::get_width(), mutex, zbar::negotiate_format(), reqHeight, reqWidth, update(), video, videoEnabled, videoOpened(), videoRunning, and window.

Referenced by pushEvent(), run(), and videoDeviceEvent().

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zbar::Image::Handler::operator zbar_image_data_handler_t * ( ) const

inlineinherited

cast this handler to the C handler

References zbar::Image::Handler::_cb().

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void QZBarThread::processImage ( Image &  image )

protected

References zbar::Image::convert(), zbar::Window::draw(), zbar::Image::get_symbols(), image, zbar::ImageScanner::recycle_image(), zbar::ImageScanner::scan(), scanner, zbar::Image::set_symbols(), update(), and window.

Referenced by pushEvent(), run(), and scanImageEvent().

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void zbar::QZBarThread::pushEvent ( QEvent *  e )

inline

References test_zbar::data, decoded(), decodedText(), zbar::QZBarThread::VideoDeviceEvent::device, enableVideo(), image, openVideo(), processImage(), run(), update(), and videoOpened().

Referenced by zbar::QZBar::attach(), zbar::QZBar::scanImage(), zbar::QZBar::setVideoDevice(), zbar::QZBar::setVideoEnabled(), and zbar::QZBar::~QZBar().

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void QZBarThread::run ( )

protected

References clear(), enableVideo(), event(), image, mutex, newEvent, zbar::Video::next_image(), openVideo(), processImage(), queue, running, video, videoEnabled, and videoRunning.

Referenced by pushEvent().

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void QZBarThread::scanImageEvent ( ScanImageEvent *  event )

protectedvirtual

References clear(), enableVideo(), zbar::QZBarThread::ScanImageEvent::image, image, processImage(), and videoRunning.

Referenced by clear(), and event().

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void zbar::QZBarThread::update ( )

signal

Referenced by enableVideo(), openVideo(), processImage(), and pushEvent().

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void QZBarThread::videoDeviceEvent ( VideoDeviceEvent *  event )

protectedvirtual

References zbar::QZBarThread::VideoDeviceEvent::device, and openVideo().

Referenced by clear(), and event().

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void QZBarThread::videoEnabledEvent ( VideoEnabledEvent *  event )

protectedvirtual

References zbar::QZBarThread::VideoEnabledEvent::enabled, enableVideo(), videoEnabled, and videoRunning.

Referenced by clear(), and event().

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void zbar::QZBarThread::videoOpened ( bool  opened )

signal

Referenced by openVideo(), and pushEvent().

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Member Data Documentation

bool zbar::QZBarThread::_videoOpened

Referenced by zbar::QZBar::isVideoOpened(), and openVideo().

QZBarImage* zbar::QZBarThread::image

private

Referenced by clear(), processImage(), pushEvent(), run(), and scanImageEvent().

QMutex zbar::QZBarThread::mutex

Referenced by zbar::QZBar::changeEvent(), zbar::QZBar::heightForWidth(), zbar::QZBar::isVideoOpened(), openVideo(), run(), and zbar::QZBar::sizeHint().

QWaitCondition zbar::QZBarThread::newEvent

Referenced by run().

QList<QEvent*> zbar::QZBarThread::queue

Referenced by run().

unsigned zbar::QZBarThread::reqHeight

Referenced by zbar::QZBar::heightForWidth(), openVideo(), and zbar::QZBar::sizeHint().

unsigned zbar::QZBarThread::reqWidth

Referenced by zbar::QZBar::heightForWidth(), openVideo(), and zbar::QZBar::sizeHint().

bool zbar::QZBarThread::running

private

Referenced by event(), and run().

ImageScanner zbar::QZBarThread::scanner

private

Referenced by enableVideo(), processImage(), and QZBarThread().

Video* zbar::QZBarThread::video

private

Referenced by enableVideo(), openVideo(), and run().

bool zbar::QZBarThread::videoEnabled

private

Referenced by enableVideo(), openVideo(), run(), and videoEnabledEvent().

bool zbar::QZBarThread::videoRunning

private

Referenced by enableVideo(), event(), openVideo(), run(), scanImageEvent(), and videoEnabledEvent().

Window zbar::QZBarThread::window

Referenced by zbar::QZBar::attach(), zbar::QZBar::changeEvent(), openVideo(), zbar::QZBar::paintEvent(), processImage(), zbar::QZBar::QZBar(), and zbar::QZBar::resizeEvent().

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

• QZBarThread.h
• QZBarThread.cpp