105 lines
4.2 KiB
Python
105 lines
4.2 KiB
Python
import os
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import platform
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import subprocess
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import sys
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import traceback
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from PyQt5.QtWidgets import QMessageBox
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from .component import Component
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if platform.system().lower() == "windows":
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import win32print
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class Os_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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self.simulate = False
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if "--sim-printer" in sys.argv:
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self.simulate = True
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def config_changed(self):
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self.platform = self.config[self.name]["platform"]
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# for windows:
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# cmd
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# wmic printer list brief
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# powershell
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# Get-Printer
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# for cups (linux, osx)
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# lpstat -p -d
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self.printer = self.config[self.name]["printer"]
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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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if self.config["label_printer"]["risoluzione"] == "300":
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custom_label_folder=f"config/label_templates/{str(self.config.machine_id)}/300/"
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standard_label_folder=f"config/label_templates/300/"
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elif self.config["label_printer"]["risoluzione"]== "203":
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custom_label_folder = f"config/label_templates/{str(self.config.machine_id)}/203/"
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standard_label_folder = f"config/label_templates/203/"
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if os.path.exists(custom_label_folder):
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label_folder = custom_label_folder
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else:
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label_folder = standard_label_folder
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label_path = label_folder+str(template)
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if os.path.exists(label_path):
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pass
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else:
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label_path = standard_label_folder+str(template)
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# LOAD LABEL TEMPLATE
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with open(label_path, "r", errors="surrogateescape", encoding='iso-8859-1') as f:
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label_file_contents = f.read()
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# LABEL PRINT
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#label = label.format(**context)
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label_file_contents = label_file_contents.replace("{BCODE}", "{YY}{MO}{DD}{HH}{MI}{SN6}")
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for key, val in context.items():
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key = "{" + key + "}"
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label_file_contents = label_file_contents.replace(key, val)
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if platform.system().lower() == "windows":
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try:
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if not self.simulate:
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printer = win32print.OpenPrinter(self.printer)
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job = win32print.StartDocPrinter(printer, 1, ("label", None, "RAW"))
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win32print.WritePrinter(printer, bytes(label_file_contents, encoding="utf8", errors="surrogateescape"))
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win32print.EndPagePrinter(printer)
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return label_file_contents
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except Exception as e:
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self.log.exception(traceback.format_exc())
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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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else:
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try:
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os.makedirs("tmp", exist_ok=True)
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label_file = "tmp/label.prn"
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with open(label_file, "w", errors="surrogateescape") as f:
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f.write(label_file_contents)
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cmd = f'lp -d "{self.printer}" "{label_file}"'
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if not self.simulate:
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p = subprocess.run(cmd, stderr=subprocess.STDOUT, stdout=subprocess.PIPE, shell=True) # unsafe
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if p.returncode != 0:
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self.log.exception(f"failed to print: return code: {p.returncode}\noutput:\n{p.stdout}")
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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:\nreturncode: {p.returncode}\noutput:\n{p.stdout}"
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)
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return None
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return label_file_contents
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except Exception as e:
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self.log.exception(traceback.format_exc())
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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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return None
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