zbar::Scanner Class Reference

low-level linear intensity sample stream scanner interface. More...

Collaboration diagram for zbar::Scanner:

Public Member Functions
	Scanner (Decoder &decoder)
	constructor. More...
	Scanner (Decoder *decoder=NULL)
	constructor. More...
	~Scanner ()
zbar_symbol_type_t	flush ()
	flush scanner pipeline. More...
const zbar_scanner_t *	get_c_scanner () const
	retrieve C scanner More...
zbar_color_t	get_color () const
	retrieve last scanned color. More...
zbar_symbol_type_t	get_type () const
	retrieve last scan result. More...
unsigned	get_width () const
	retrieve last scanned width. More...
zbar_symbol_type_t	new_scan ()
	mark start of a new scan pass. More...
	operator zbar_scanner_t * () const
	cast to C scanner More...
Scanner &	operator<< (int y)
	process next sample intensity value. More...
Scanner &	operator<< (unsigned char *rgb)
	process next sample from RGB (or BGR) triple. More...
void	reset ()
	clear all scanner state. More...
zbar_symbol_type_t	scan_rgb24 (unsigned char *rgb)
	process next sample from RGB (or BGR) triple. More...
zbar_symbol_type_t	scan_y (int y)
	process next sample intensity value. More...

Private Attributes
zbar_scanner_t *	_scanner
zbar_symbol_type_t	_type

Detailed Description

low-level linear intensity sample stream scanner interface.

identifies "bar" edges and measures width between them. optionally passes to bar width Decoder

Constructor & Destructor Documentation

zbar::Scanner::Scanner ( Decoder &  decoder )

inline

constructor.

Parameters

decoder

reference to a Decoder instance which will be passed scan results automatically

References zbar::Decoder::_decoder, _scanner, and zbar::zbar_scanner_create().

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zbar::Scanner::Scanner ( Decoder *  decoder = NULL )

inline

constructor.

Parameters

decoder

pointer to a Decoder instance which will be passed scan results automatically

References _scanner, decoder, and zbar::zbar_scanner_create().

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zbar::Scanner::~Scanner ( )

inline

References _scanner, and zbar::zbar_scanner_destroy().

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Member Function Documentation

zbar_symbol_type_t zbar::Scanner::flush ( )

inline

flush scanner pipeline.

see zbar_scanner_flush()

References _scanner, _type, and zbar::zbar_scanner_flush().

Referenced by scan_image().

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const zbar_scanner_t* zbar::Scanner::get_c_scanner ( ) const

inline

retrieve C scanner

References _scanner.

zbar_color_t zbar::Scanner::get_color ( ) const

inline

retrieve last scanned color.

see zbar_scanner_get_color()

References _scanner, and zbar::zbar_scanner_get_color().

Referenced by scan_image().

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zbar_symbol_type_t zbar::Scanner::get_type ( ) const

inline

retrieve last scan result.

References _type.

unsigned zbar::Scanner::get_width ( ) const

inline

retrieve last scanned width.

see zbar_scanner_get_width()

References _scanner, and zbar::zbar_scanner_get_width().

Referenced by scan_image().

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zbar_symbol_type_t zbar::Scanner::new_scan ( )

inline

mark start of a new scan pass.

see zbar_scanner_new_scan()

References _scanner, _type, and zbar::zbar_scanner_new_scan().

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zbar::Scanner::operator zbar_scanner_t * ( ) const

inline

cast to C scanner

References _scanner.

Scanner& zbar::Scanner::operator<< ( int  y )

inline

process next sample intensity value.

see zbar_scan_y()

References _scanner, _type, and zbar::zbar_scan_y().

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Scanner& zbar::Scanner::operator<< ( unsigned char *  rgb )

inline

process next sample from RGB (or BGR) triple.

see zbar_scan_rgb24()

References _scanner, _type, and zbar::zbar_scan_rgb24().

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void zbar::Scanner::reset ( )

inline

clear all scanner state.

see zbar_scanner_reset()

References _scanner, and zbar::zbar_scanner_reset().

Referenced by scan_image().

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zbar_symbol_type_t zbar::Scanner::scan_rgb24 ( unsigned char *  rgb )

inline

process next sample from RGB (or BGR) triple.

see zbar_scan_rgb24()

References _scanner, _type, and zbar::zbar_scan_rgb24().

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zbar_symbol_type_t zbar::Scanner::scan_y ( int  y )

inline

process next sample intensity value.

see zbar_scan_y()

References _scanner, _type, and zbar::zbar_scan_y().

Referenced by scan_image().

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Member Data Documentation

zbar_scanner_t* zbar::Scanner::_scanner

private

Referenced by flush(), get_c_scanner(), get_color(), get_width(), new_scan(), operator zbar_scanner_t *(), operator<<(), reset(), scan_rgb24(), scan_y(), Scanner(), and ~Scanner().

zbar_symbol_type_t zbar::Scanner::_type

private

Referenced by flush(), get_type(), new_scan(), operator<<(), scan_rgb24(), and scan_y().

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

• Scanner.h