def test_cancelled_scan(self):
try:
rawapi.sane_start(self.dev_handle)
except StopIteration:
self.skipTest("cannot scan, no document loaded")
buf = rawapi.sane_read(self.dev_handle, 128*1024)
self.assertTrue(len(buf) > 0)
rawapi.sane_cancel(self.dev_handle)
def test_cancelled_scan(self):
try:
rawapi.sane_start(self.dev_handle)
except StopIteration:
self.skipTest("cannot scan, no document loaded")
buf = rawapi.sane_read(self.dev_handle, 128 * 1024)
self.assertTrue(len(buf) > 0)
rawapi.sane_cancel(self.dev_handle)
def __init__(self, scanner):
self.__scanner = scanner
self.__is_scanning = True
self.__raw_output = []
self.__img = None
self.__scanner._open()
rawapi.sane_start(sane_dev_handle[1])
try:
self.__parameters = \
rawapi.sane_get_parameters(sane_dev_handle[1])
except Exception:
rawapi.sane_cancel(sane_dev_handle[1])
raise
def test_simple_scan(self):
# XXX(Jflesch): set_io_mode() always return SANE_STATUS_UNSUPPORTED
# with my scanner
# rawapi.sane_set_io_mode(self.dev_handle, non_blocking=False)
rawapi.sane_start(self.dev_handle)
# XXX(Jflesch): get_select_fd() always return SANE_STATUS_UNSUPPORTED
# with my scanner
# fd = rawapi.sane_get_select_fd(self.dev_handle)
# self.assertTrue(fd > 0)
try:
while True:
buf = rawapi.sane_read(self.dev_handle, 128 * 1024)
self.assertTrue(len(buf) > 0)
except EOFError:
pass
rawapi.sane_cancel(self.dev_handle)
def test_simple_scan(self):
# XXX(Jflesch): set_io_mode() always return SANE_STATUS_UNSUPPORTED
# with my scanner
#rawapi.sane_set_io_mode(self.dev_handle, non_blocking=False)
try:
rawapi.sane_start(self.dev_handle)
except StopIteration:
self.skipTest("cannot scan, no document loaded")
# XXX(Jflesch): get_select_fd() always return SANE_STATUS_UNSUPPORTED
# with my scanner
#fd = rawapi.sane_get_select_fd(self.dev_handle)
#self.assertTrue(fd > 0)
try:
while True:
buf = rawapi.sane_read(self.dev_handle, 128 * 1024)
self.assertTrue(len(buf) > 0)
except EOFError:
pass
rawapi.sane_cancel(self.dev_handle)
def read(self):
try:
if not self.__is_scanning:
rawapi.sane_start(sane_dev_handle[1])
self.__is_scanning = True
self.__must_clean = True
self.__parameters = \
rawapi.sane_get_parameters(sane_dev_handle[1])
return
try:
self.__raw_output.append(rawapi.sane_read(sane_dev_handle[1],
SANE_READ_BUFSIZE))
except EOFError:
raw = b''.join(self.__raw_output)
self.__imgs.append(ImgUtil.raw_to_img(raw, self.__parameters))
self.__is_scanning = False
self.__raw_output = []
raise
except StopIteration:
rawapi.sane_cancel(sane_dev_handle[1])
self.__must_clean = False
self.__is_scanning = False
raise
def test_cancelled_scan(self):
rawapi.sane_start(self.dev_handle)
buf = rawapi.sane_read(self.dev_handle, 128 * 1024)
self.assertTrue(len(buf) > 0)
rawapi.sane_cancel(self.dev_handle)