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python-escpos
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Added qr functionality

This commit is contained in:
Manuel F Martinez 2013-03-14 01:31:07 -07:00
parent 0e42bfc89a
commit 5295d5c90b
1 changed files with 19 additions and 3 deletions
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22
escpos/escpos.py
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@ -7,6 +7,7 @@
''' '''
import Image import Image
import qrcode
import time import time
from constants import * from constants import *
@ -51,7 +52,7 @@ class Escpos:
cont = 0 cont = 0
def image(self, img): def _convert_image(self, im):
""" Parse image and prepare it to a printable format """ """ Parse image and prepare it to a printable format """
pixels = [] pixels = []
pix_line = "" pix_line = ""
@ -60,8 +61,6 @@ class Escpos:
switch = 0 switch = 0
img_size = [ 0, 0 ] img_size = [ 0, 0 ]
im_open = Image.open(img)
im = im_open.convert("RGB")
if im.size[0] > 512: if im.size[0] > 512:
print "WARNING: Image is wider than 512 and could be truncated at print time " print "WARNING: Image is wider than 512 and could be truncated at print time "
@ -101,6 +100,23 @@ class Escpos:
self._print_image(pix_line, img_size) self._print_image(pix_line, img_size)
def image(self,path_img):
""" Open image file """
im_open = Image.open(path_img)
im = im_open.convert("RGB")
self._convert_image(im)
def qr(self,text):
""" Print QR Code for the provided string """
qr_code = qrcode.QRCode(version=4, box_size=4, border=1)
qr_code.add_data(text)
qr_code.make(fit=True)
qr_img = qr_code.make_image()
im = qr_img._img.convert("RGB")
self._convert_image(im)
def barcode(self, code, bc, width, height, pos, font): def barcode(self, code, bc, width, height, pos, font):
""" Print Barcode """ """ Print Barcode """
# Align Bar Code() # Align Bar Code()