66 lines
2.5 KiB
Python
66 lines
2.5 KiB
Python
import sys
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if "--sim-serial" in sys.argv:
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from components.dummies.serial import serial
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else:
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import serial
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from PyQt5.QtWidgets import QMessageBox
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from .component import Component
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class Serial_Label_Printer(Component):
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def __init__(self, config=None, name=None):
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super().__init__(config=config, name=name, threaded=False)
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def config_changed(self):
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self.port = self.config[self.name]["port"]
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self.baudrate = int(self.config[self.name]["baudrate"])
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self.stopbits = getattr(serial, self.config[self.name].get("stopbits", "stopbits_one").upper())
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self.parity = getattr(serial, self.config[self.name].get("parity", "parity_none").upper())
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self.bytesize = getattr(serial, self.config[self.name].get("bytesize", "eightbits").upper())
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self.read_timeout = float(self.config[self.name].get("read_timeout", 1))
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self.write_timeout = float(self.config[self.name].get("write_timeout", 1))
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self.inter_byte_timeout = self.config[self.name].get("inter_byte_timeout", None)
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if self.inter_byte_timeout is not None:
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self.inter_byte_timeout = float(self.inter_byte_timeout)
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@Component.reconfig_on_error
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def print_label(self, template, context=None):
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if context is None:
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context = {}
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# LOAD LABEL TEMPLATE
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with open(f"config/label_templates/{str(template)}", "r", errors="surrogateescape") as f:
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label = f.read()
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# LABEL PRINT
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label = label.format(**context)
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try:
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conn = serial.Serial(
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self.port,
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baudrate=self.baudrate,
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stopbits=self.stopbits,
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parity=self.parity,
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bytesize=self.bytesize,
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timeout=self.read_timeout,
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write_timeout=self.write_timeout,
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inter_byte_timeout=self.inter_byte_timeout,
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)
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conn.write(label.encode(errors="surrogateescape"))
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conn.close()
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return label
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except serial.serialutil.SerialException as e:
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QMessageBox.critical(
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None,
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"Errore Connessione Stampante",
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"Non e stato possibile connettersi alla stampante di etichette\nL'etichetta non verra stampata.\n\nErrore:\n" + str(e)
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)
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return None
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except Exception as e:
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QMessageBox.critical(
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None,
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"Errore Stampante",
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f"Non e stato possibile stampare l'etichetta.\n\nErrore:\n{e}"
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)
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return None
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