epickiwi/brother_ql
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

some improvements for the reader

Browse Source 
* height is now -> raster_no
* width -> mwidth
* flip image before saving
This commit is contained in:
Philipp Klaus
2015-12-12 13:35:35 +01:00
parent d37abd6da0
commit 8f699384e5
1 changed files with 12 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
reader.py
+12 -5
View File
@@ -1,7 +1,9 @@
#!/usr/bin/env python #!/usr/bin/env python
import struct
import io import io
import logging import logging
from PIL import Image from PIL import Image
import numpy as np import numpy as np
from matplotlib import pyplot as plt from matplotlib import pyplot as plt
@@ -39,7 +41,8 @@ class BrotherReader(object):
if type(brother_file) in (str,): if type(brother_file) in (str,):
brother_file = io.open(brother_file, 'rb') brother_file = io.open(brother_file, 'rb')
self.brother_file = brother_file self.brother_file = brother_file
self.width, self.height = None, None self.mwidth, self.mheight = None, None
self.raster_no = None
self.rows = [] self.rows = []
self.compression = False self.compression = False
self.page = 1 self.page = 1
@@ -55,7 +58,8 @@ class BrotherReader(object):
num_bytes = len(command) num_bytes = len(command)
if cmd[1] > 0: num_bytes += cmd[1] if cmd[1] > 0: num_bytes += cmd[1]
if cmd[0] == 'init': if cmd[0] == 'init':
self.width, self.height = None, None self.mwidth, self.mheight = None, None
self.raster_no = None
self.rows = [] self.rows = []
if cmd[0] == 'raster': if cmd[0] == 'raster':
num_bytes += rem_script[2] + 2 num_bytes += rem_script[2] + 2
@@ -86,12 +90,15 @@ class BrotherReader(object):
raise NotImplementedError() raise NotImplementedError()
self.rows.append(row) self.rows.append(row)
if cmd[0] == 'media/quality': if cmd[0] == 'media/quality':
self.height = rem_script[len(command) + 4] + rem_script[len(command) + 5]*256 self.raster_no = struct.unpack('<L', payload[4:8])[0]
self.width = rem_script[len(command) + 2] + rem_script[len(command) + 3]*256 self.mwidth = rem_script[len(command) + 2]
logger.info(" width: {}mm height: {}dots".format(self.width, self.height)) self.mlength = rem_script[len(command) + 3]*256
fmt = " media width: {}mm, media length: {}mm, raster no: {}dots"
logger.info(fmt.format(self.mwidth, self.mlength, self.raster_no))
if cmd[0] == 'print': if cmd[0] == 'print':
self.rows = [np.unpackbits(np.array(row, dtype=np.uint8)) for row in self.rows] self.rows = [np.unpackbits(np.array(row, dtype=np.uint8)) for row in self.rows]
array = np.array(self.rows, dtype=np.uint8) array = np.array(self.rows, dtype=np.uint8)
array = np.fliplr(array)
im = Image.fromarray(array) im = Image.fromarray(array)
im = im.point(lambda x: 0 if x == 1 else 255, '1') # -> Monocolor and invert im = im.point(lambda x: 0 if x == 1 else 255, '1') # -> Monocolor and invert
#plt.imshow(im) #plt.imshow(im)