Functions
def	decoded (zbar, data)

def	open_button_clicked (button)

def	set_status_label (opened, enabled)

def	status_button_toggled (button)

def	video_changed (widget)

def	video_enabled (zbar, param)

def	video_opened (zbar, param)

Variables
	cursor_visible

	editable

	expand

	hbox

	info

	min_height

	min_width

	open_button

	open_file

	path

	results

	status_button

	status_image

	vbox

	video_device

	video_list

	window

	zbar

Function Documentation

def test_pygtk.decoded	(	zbar,
		data
	)

callback invoked when a barcode is decoded by the zbar widget.
displays the decoded data in the text box

def test_pygtk.open_button_clicked ( button )

callback invoked when the 'Open' button is clicked.  pops up an
'Open File' dialog which the user may use to select an image file.
if the image is successfully opened, it is passed to the zbar
widget which displays it and scans it for barcodes.  results are
returned using the same hook used to report video results

def test_pygtk.set_status_label	(	opened,
		enabled
	)

update status button label to reflect indicated state.

Referenced by status_button_toggled(), and video_opened().

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def test_pygtk.status_button_toggled ( button )

callback invoked when the status button changes state
(interactively or programmatically).  ensures the zbar widget
video streaming state is consistent and updates the display of the
button to represent the current state

References set_status_label().

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def test_pygtk.video_changed ( widget )

callback invoked when a new video device is selected from the
drop-down list.  sets the new device for the zbar widget,
which will eventually cause it to be opened and enabled

def test_pygtk.video_enabled	(	zbar,
		param
	)

callback invoked when the zbar widget enables or disables
video streaming.  updates the status button state to reflect the
current video state

def test_pygtk.video_opened	(	zbar,
		param
	)

callback invoked when the zbar widget opens or closes a video
device.  also called when a device is closed due to error.
updates the status button state to reflect the current video state

References set_status_label().

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