from Adafruit_Thermal import *
printer = Adafruit_Thermal("/dev/ttyAMA0", 19200, timeout=5)
# Reset printer
printer.wake()
printer.flush()
printer.setDefault()
# Test inverse on & off
printer.inverseOn()
printer.println("Inverse ON")
printer.inverseOff()
# Test character double-height on & off
printer.doubleHeightOn()
printer.println("Double Height ON")
printer.doubleHeightOff()
# Test character double-width on & off
printer.doubleWidthOn()
printer.println("Double Width ON")
printer.doubleWidthOff()
# Set justification (right, center, left) -- accepts 'L', 'C', 'R'
printer.justify('R')
printer.println("Right justified")
printer.justify('C')
printer.println("Center justified")
printer.justify('L')
printer.println("Left justified")
#!/usr/bin/python
from Adafruit_Thermal import *
printer = Adafruit_Thermal("/dev/ttyUSB0", 19200, timeout=5)
# Test inverse on & off
printer.inverseOn()
printer.println("Inverse ON")
printer.inverseOff()
# Test character double-height on & off
printer.doubleHeightOn()
printer.println("Double Height ON")
printer.doubleHeightOff()
# Set justification (right, center, left) -- accepts 'L', 'C', 'R'
printer.justify('R')
printer.println("Right justified")
printer.justify('C')
printer.println("Center justified")
printer.justify('L')
printer.println("Left justified")
# Test more styles
printer.boldOn()
printer.println("Bold text")
printer.boldOff()
printer.underlineOn()
printer.println("Underlined text")
class Printer(object):
"""This class represents the printer"""
def __init__(self, device, baud_rate, timeout):
"""Printer initialization
:param device: Device path
:type device: str
:param baud: Baud rate
:type baud: int
:param timeout: Timeout in seconds
:type timeout: int
"""
self.print_size = 384, 384 # max_width=384
self.device = Adafruit_Thermal(device, baud_rate, timeout=timeout)
def _calibrate(self):
for i in range(0, 256, 15):
self.device.begin(i)
self.device.println(i) # Print heat time
self.device.inverseOn()
self.device.print("{:^32}".format("")) # Print 32 spaces (inverted)
self.device.inverseOff()
self.device.begin() # Reset heat time to default
self.device.feed(4)
def print_image(self, image_file_path, event):
"""Print Image
:param image_file_path: Image file path
:type image_file_path: str
"""
# print logo
self.device.printImage(Image.open(event["logo"]), True)
self.device.justify("C")
self.device.doubleHeightOn()
self.device.println(event["title"])
self.device.doubleHeightOff()
self.device.println(datetime.now().strftime("%d-%m-%Y %H:%M:%S")) # time
self.device.feed(1)
# print picture
image_code = os.path.splitext(os.path.basename(image_file_path))[0]
image_for_print_path = "{}.print".format(image_file_path)
image_for_print = Image.open(image_file_path) # create proxy image for print
image_for_print = image_for_print.transpose(Image.ROTATE_180) # rotate image
w, h = image_for_print.size
image_for_print.crop((int((w - h) / 2), 0, int((w - h) / 2), 0))
image_for_print.thumbnail(self.print_size, Image.ANTIALIAS) # resize
image_for_print.save(image_for_print_path, "JPEG") # save
self.device.printImage(Image.open(image_for_print_path), True)
self.device.feed(1)
# print text
self.device.println(event["place"])
self.device.feed(1)
# line
self.device.println("------------------------------")
self.device.feed(1)
self.device.boldOn()
self.device.println("partagez votre")
self.device.println("photo avec le code")
self.device.boldOff()
self.device.doubleHeightOn()
self.device.doubleWidthOn()
self.device.println(image_code)
self.device.doubleWidthOff()
self.device.doubleHeightOff()
self.device.boldOn()
self.device.println("sur")
self.device.boldOff()
self.device.println("shootomatic.net")
self.device.feed(1)
# line
self.device.println("------------------------------")
# space to detach
self.device.feed(3)
# delete proxy image used for print
os.remove(image_for_print_path)