if res > 600:
log.warn(
"Using resolutions greater than 600 dpi will cause very large files to be created."
)
else:
log.warn(
"The scan current parameters will cause very large files to be created."
)
log.warn(
"This can cause the scan to take a long time to complete and may cause your system to slow down."
)
log.warn("Approx. number of bytes to read from scanner: %s" %
utils.format_bytes(scan_size, True))
device.setOption('compression', scanner_compression)
if brx - tlx <= 0.0 or bry - tly <= 0.0:
log.error("Invalid scan area (width or height is negative).")
sys.exit(1)
log.info("")
log.info("Resolution: %ddpi" % res)
log.info("Mode: %s" % scan_mode)
log.info("Compression: %s" % scanner_compression)
log.info("Scan area (mm):")
log.info(" Top left (x,y): (%fmm, %fmm)" % (tlx, tly))
log.info(" Bottom right (x,y): (%fmm, %fmm)" % (brx, bry))
log.info(" Width: %fmm" % (brx - tlx))
log.info(" Height: %fmm" % (bry - tly))
log.error("Failed to get the source from device.")
#check if device has only ADF
if len(source_option) == 1 and 'ADF' in source_option:
log.debug("Device has only ADF support")
adf = True
if adf:
try:
if 'ADF' not in source_option:
log.error("Failed to set ADF mode. This device doesn't support ADF.")
sys.exit(1)
else:
if duplex == True:
if 'Duplex' in source_option:
device.setOption("source", "Duplex")
else:
log.warn("Device doesn't support Duplex scanning. Continuing with Simplex ADF scan.")
device.setOption("source", "ADF")
else:
device.setOption("source", "ADF")
device.setOption("batch-scan", True)
except scanext.error:
log.error("Error in setting ADF mode Duplex=%d." % duplex)
sys.exit(1)
else:
try:
device.setOption("source", "Flatbed")
device.setOption("batch-scan", False)
except scanext.error:
if scan_mode == 'color':
scan_size = scan_px * 3 # 3 bytes/px
else:
scan_size = scan_px # 1 byte/px
if scan_size > 52428800: # 50MB
if res > 600:
log.warn("Using resolutions greater than 600 dpi will cause very large files to be created.")
else:
log.warn("The scan current parameters will cause very large files to be created.")
log.warn("This can cause the scan to take a long time to complete and may cause your system to slow down.")
log.warn("Approx. number of bytes to read from scanner: %s" % utils.format_bytes(scan_size, True))
device.setOption('compression', scanner_compression)
if brx - tlx <= 0.0 or bry - tly <= 0.0:
log.error("Invalid scan area (width or height is negative).")
sys.exit(1)
log.info("")
log.info("Resolution: %ddpi" % res)
log.info("Mode: %s" % scan_mode)
log.info("Compression: %s" % scanner_compression)
log.info("Scan area (mm):")
log.info(" Top left (x,y): (%fmm, %fmm)" % (tlx, tly))
log.info(" Bottom right (x,y): (%fmm, %fmm)" % (brx, bry))
log.info(" Width: %fmm" % (brx - tlx))
log.info(" Height: %fmm" % (bry - tly))
log.error("Failed to get the source from device.")
#check if device has only ADF
if len(source_option) == 1 and 'ADF' in source_option:
log.debug("Device has only ADF support")
adf = True
if adf:
try:
if 'ADF' not in source_option:
log.error("Failed to set ADF mode. This device doesn't support ADF.")
sys.exit(1)
else:
if duplex == True:
if 'Duplex' in source_option:
device.setOption("source", "Duplex")
else:
log.warn("Device doesn't support Duplex scanning. Continuing with Simplex ADF scan.")
device.setOption("source", "ADF")
else:
device.setOption("source", "ADF")
device.setOption("batch-scan", True)
except scanext.error:
log.error("Error in setting ADF mode Duplex=%d." % duplex)
sys.exit(1)
else:
try:
device.setOption("source", "Flatbed")
device.setOption("batch-scan", False)
except scanext.error: