class DocScanWorker(Worker):
__gsignals__ = {
"scan-start": (
gobject.SIGNAL_RUN_LAST,
gobject.TYPE_NONE,
# current page / total
(gobject.TYPE_INT, gobject.TYPE_INT),
),
"ocr-start": (
gobject.SIGNAL_RUN_LAST,
gobject.TYPE_NONE,
# current page / total
(gobject.TYPE_INT, gobject.TYPE_INT),
),
"scan-done": (
gobject.SIGNAL_RUN_LAST,
gobject.TYPE_NONE,
# current page / total
(gobject.TYPE_INT, gobject.TYPE_INT),
),
}
can_interrupt = True
def __init__(self, config, nb_pages, line_in_treeview, doc=None):
Worker.__init__(self, "Document scanner (doc %d)" % (line_in_treeview))
self.__config = config
self.doc = doc
self.nb_pages = nb_pages
self.line_in_treeview = line_in_treeview
self.current_page = None
def __progress_cb(self, progression, total, step=None):
if not self.can_run:
raise Exception("Scan interrupted")
if progression == 0 and step == ScannedPage.SCAN_STEP_OCR:
self.emit("ocr-start", self.current_page, self.nb_pages)
def do(self, scan_src):
if self.doc == None:
self.doc = ScannedDoc(self.__config.workdir)
for self.current_page in range(0, self.nb_pages):
self.emit("scan-start", self.current_page, self.nb_pages)
self.doc.scan_single_page(
scan_src,
self.__config.scanner_resolution,
self.__config.ocrlang,
self.__config.scanner_calibration,
self.__progress_cb,
)
self.emit("scan-done", self.current_page, self.nb_pages)
self.current_page = None
def do(self, scan_src):
if self.doc == None:
self.doc = ScannedDoc(self.__config.workdir)
for self.current_page in range(0, self.nb_pages):
self.emit("scan-start", self.current_page, self.nb_pages)
self.doc.scan_single_page(
scan_src,
self.__config.scanner_resolution,
self.__config.ocrlang,
self.__config.scanner_calibration,
self.__progress_cb,
)
self.emit("scan-done", self.current_page, self.nb_pages)
self.current_page = None