setop/python-escpos
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apply fixes, mainly to whitespace ( patch by @patkan in #128 )

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Michael Billington
2016-04-13 21:27:51 +10:00
parent 44c79eaf11
commit a0d8689141
5 changed files with 40 additions and 8 deletions
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11
escpos/escpos.py
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@@ -49,7 +49,7 @@ class Escpos(object):
"""
pass
def image(self, img_source, high_density_vertical = True, high_density_horizontal = True, impl = "bitImageRaster"):
def image(self, img_source, high_density_vertical=True, high_density_horizontal=True, impl="bitImageRaster"):
""" Print an image
:param img_source: PIL image or filename to load: `jpg`, `gif`, `png` or `bmp`
@@ -78,12 +78,11 @@ class Escpos(object):
if impl == "bitImageColumn":
# ESC *, column format bit image
density_byte = (1 if high_density_horizontal else 0) + (32 if high_density_vertical else 0)
header = ESC + b"*" + six.int2byte(density_byte) + self._int_low_high( im.width, 2 )
outp = []
outp.append(ESC + b"3" + six.int2byte(16)) # Adjust line-feed size
header = ESC + b"*" + six.int2byte(density_byte) + self._int_low_high(im.width, 2)
outp = [ESC + b"3" + six.int2byte(16)] # Adjust line-feed size
for blob in im.to_column_format(high_density_vertical):
outp.append(header + blob + b"\n")
outp.append(ESC + b"2"); # Reset line-feed size
outp.append(ESC + b"2") # Reset line-feed size
self._raw(b''.join(outp))
def _image_send_graphics_data(self, m, fn, data):
@@ -136,7 +135,7 @@ class Escpos(object):
self.image(im)
return
# Native 2D code printing
cn = b'1' # Code type for QR code
cn = b'1' # Code type for QR code
# Select model: 1, 2 or micro.
self._send_2d_code_data(six.int2byte(65), cn, six.int2byte(48 + model) + six.int2byte(0))
# Set dot size.

3
escpos/image.py
View File

@@ -10,6 +10,7 @@ This module contains the image format handler :py:class:`EscposImage`.
from PIL import Image, ImageOps
class EscposImage(object):
"""
Load images in, and output ESC/POS formats.
@@ -64,7 +65,7 @@ class EscposImage(object):
_, height_pixels = self._im.size
return height_pixels
def to_column_format(self, high_density_vertical = True):
def to_column_format(self, high_density_vertical=True):
"""
Extract slices of an image as equal-sized blobs of column-format data.