feat: Add Web iface with QR codes
This commit is contained in:
Piotr Gaczkowski
parent
b4bf6552f6
commit
783d9b6d34
10 changed files with 1293 additions and 739 deletions
75
labeler/adapter/cli.py
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75
labeler/adapter/cli.py
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@ -0,0 +1,75 @@
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import os
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from labeler.app.labeler import Application
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from labeler.infra.e550w_printer.printer import E550W
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from labeler.infra.renderer import PILRenderer
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class LabelingBot:
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def __init__(self, app: Application):
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self.app = app
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def media_info(self):
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media = self.app.get_installed_media()
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print(f"Installed medium: {media}")
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def simple_label(self, label_text, label_length=0):
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try:
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label = self.app.print_label(text=label_text, length=label_length)
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except Exception as e:
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print(f"There was an exception: {e}")
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def get_qrcode(self, label_text, label_length=0):
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label = self.app.render_qrcode_preview(text=label_text, length=label_length)
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return label
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def print_qrcode(self, label_text, label_length=0):
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try:
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label = self.app.print_qrcode(text=label_text, length=label_length)
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except Exception as e:
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print(f"There was an exception: {e}")
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# async def label_length(self):
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# await update.message.reply_text(
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# "Hello! Please tell me the length of the label, enter 0 for auto:"
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# )
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# return LABEL_LENGTH
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#
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# async def label_text(self, update: Update, context: CallbackContext) -> int:
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# user_input = update.message.text
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# context.user_data["length"] = int(user_input)
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# await update.message.reply_text("Now, please tell me the text of the label:")
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# return LABEL_TEXT
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#
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# async def simple_label(self, update: Update, context: CallbackContext) -> int:
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# user_input = update.message.text
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# context.user_data["label"] = user_input
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# try:
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# label = self.app.print_label(
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# text=context.user_data["label"], length=context.user_data["length"]
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# )
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# except Exception as e:
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# await update.message.reply_text(f"There was an exception: {e}")
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# return ConversationHandler.END
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#
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# await update.message.reply_photo(
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# label.bytes, f'Your label is: {context.user_data["label"]}'
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# )
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# return ConversationHandler.END
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#
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# async def cancel(self, update: Update, context: CallbackContext) -> int:
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# await update.message.reply_text("Cancelled.")
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# return ConversationHandler.END
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if __name__ == "__main__":
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application = Application(PILRenderer(), E550W(os.environ.get("PRINTER_IP")))
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bot = LabelingBot(application)
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LABEL_LENGTH, LABEL_TEXT = range(2)
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bot.media_info()
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label = bot.get_qrcode("512", 25)
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with open("label.png", "wb") as preview:
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preview.write(label.bytes)
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label = bot.print_qrcode("512", 25)
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80
labeler/adapter/fastapi_srv.py
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80
labeler/adapter/fastapi_srv.py
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@ -0,0 +1,80 @@
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import os
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from labeler.app.labeler import Application
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from labeler.infra.e550w_printer.printer import E550W
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from labeler.infra.renderer import PILRenderer
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from fastapi import FastAPI
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app = FastAPI()
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class LabelingBot:
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def __init__(self, app: Application):
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self.app = app
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def media_info(self):
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media = self.app.get_installed_media()
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print(f"Installed medium: {media}")
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def simple_label(self, label_text, label_length=0):
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try:
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label = self.app.print_label(text=label_text, length=label_length)
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except Exception as e:
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print(f"There was an exception: {e}")
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def get_qrcode(self, label_text, label_length=0):
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label = self.app.render_qrcode_preview(text=label_text, length=label_length)
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return label
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def print_qrcode(self, label_text, label_length=0):
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try:
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label = self.app.print_qrcode(text=label_text, length=label_length)
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except Exception as e:
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print(f"There was an exception: {e}")
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# async def label_length(self):
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# await update.message.reply_text(
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# "Hello! Please tell me the length of the label, enter 0 for auto:"
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# )
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# return LABEL_LENGTH
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#
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# async def label_text(self, update: Update, context: CallbackContext) -> int:
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# user_input = update.message.text
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# context.user_data["length"] = int(user_input)
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# await update.message.reply_text("Now, please tell me the text of the label:")
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# return LABEL_TEXT
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#
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# async def simple_label(self, update: Update, context: CallbackContext) -> int:
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# user_input = update.message.text
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# context.user_data["label"] = user_input
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# try:
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# label = self.app.print_label(
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# text=context.user_data["label"], length=context.user_data["length"]
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# )
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# except Exception as e:
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# await update.message.reply_text(f"There was an exception: {e}")
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# return ConversationHandler.END
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#
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# await update.message.reply_photo(
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# label.bytes, f'Your label is: {context.user_data["label"]}'
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# )
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# return ConversationHandler.END
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#
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# async def cancel(self, update: Update, context: CallbackContext) -> int:
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# await update.message.reply_text("Cancelled.")
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# return ConversationHandler.END
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@app.get("/print/{item_id}")
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def print_item(item_id: int, q: str | None = None):
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application = Application(PILRenderer(), E550W(os.environ.get("PRINTER_IP")))
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bot = LabelingBot(application)
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LABEL_LENGTH, LABEL_TEXT = range(2)
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bot.media_info()
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label = bot.get_qrcode(item_id, 25)
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with open("label.png", "wb") as preview:
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preview.write(label.bytes)
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bot.print_qrcode(item_id, 25)
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@ -31,6 +31,23 @@ class Application:
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self.renderer.render_label(label_definition)
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def render_qrcode_preview(self, text: str, length: int = None) -> Label:
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media = self.printer.get_installed_media()
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if length != 0:
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label_length = Dimension(mm=length) - 2 * media.minimal_margin_horizontal
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else:
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label_length = None
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label_definition = LabelDefinition(
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text=text,
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length=label_length,
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width=media.printable_width,
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dpi=media.dpi,
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)
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return self.renderer.render_qrcode(label_definition)
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def print_label(self, text: str, length: int = None) -> Image:
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media = self.printer.get_installed_media()
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@ -50,5 +67,24 @@ class Application:
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self.printer.print_label(label)
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return label
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def print_qrcode(self, text: str, length: int = None) -> Image:
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media = self.printer.get_installed_media()
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if length != 0:
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label_length = Dimension(mm=length) - 2 * media.minimal_margin_horizontal
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else:
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label_length = None
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label_definition = LabelDefinition(
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text=text,
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length=label_length,
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width=media.printable_width,
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dpi=media.dpi,
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)
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label = self.renderer.render_qrcode(label_definition)
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self.printer.print_label(label)
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return label
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def get_installed_media(self) -> MediaDefinition:
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return self.printer.get_installed_media()
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@ -4,6 +4,7 @@ from math import inf
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from brother_ql import BrotherQLRaster, create_label
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from brother_ql.backends import guess_backend, backend_factory
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from brother_ql.conversion import convert
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from pysnmp.entity.engine import SnmpEngine
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from pysnmp.hlapi import getCmd, CommunityData, UdpTransportTarget, ContextData
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from pysnmp.smi.rfc1902 import ObjectType, ObjectIdentity
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@ -43,9 +44,9 @@ class E550W(Printer):
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im = PILImage.open(io.BytesIO(label.bytes))
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qlr = BrotherQLRaster("PT-E550W")
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create_label(
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convert(
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qlr,
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im,
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[im],
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self.__media_width_to_type(label.height),
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red=False,
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threshold=70,
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@ -1,3 +1,4 @@
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import qrcode
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import textwrap
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from string import ascii_letters
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@ -7,9 +8,16 @@ from labeler.domain.objects import Image, LabelDefinition
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from labeler.interfaces import Renderer
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DPI = 360.0
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def points_to_pixels(point_size: float):
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return int(point_size * (72 / DPI))
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class PILRenderer(Renderer):
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def __init__(self):
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self.font_path = "/Library/Fonts/Arial.ttf"
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self.font_path = "/Library/Fonts/Arial Unicode.ttf"
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def render_label(self, label_definition: LabelDefinition) -> Image:
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if label_definition.length is None:
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@ -47,7 +55,7 @@ class PILRenderer(Renderer):
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while text_height > 0:
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font = ImageFont.truetype(
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"/Library/Fonts/Arial.ttf",
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"/Library/Fonts/Arial Unicode.ttf",
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text_height,
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)
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if lines_to_print > 1:
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@ -74,6 +82,42 @@ class PILRenderer(Renderer):
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)
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return im
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def render_qrcode(self, label_definition: LabelDefinition) -> Image:
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width = label_definition.pixel_width
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length = label_definition.pixel_length
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text = label_definition.text
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font = self.__get_font_for_qr()
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qr = qrcode.QRCode(box_size=7)
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qr.add_data(f"https://hs3.pl/db/{text}")
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qr.make(fit=True)
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qr_img = qr.make_image()
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print(width, length)
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pil_image = PILImage.new("1", (width, length), 1)
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draw = ImageDraw.Draw(pil_image)
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pil_image.paste(qr_img)
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draw.text(
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(width / 2, 232),
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"HS3-DB",
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font=font,
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fill=0,
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anchor="mm",
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align="center",
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)
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draw.text(
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(20, 232 + 34),
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f"ID: {text}",
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font=font,
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fill=0,
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align="left",
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)
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return Image.from_pil(pil_image.transpose(PILImage.Transpose.ROTATE_90))
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def __get_font_for_qr(self):
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font_size = int(360 / 9)
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return ImageFont.truetype("fonts/SourceCodePro-SemiBold.ttf", font_size)
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def __get_font(self, text: str, max_width: int, max_length: int):
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font_size = max_width
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step = max_width // 2
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@ -8,6 +8,10 @@ class Renderer(abc.ABC):
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def render_label(self, label_definition: LabelDefinition) -> Image:
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pass
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@abc.abstractmethod
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def render_qrcode(self, label_definition: LabelDefinition) -> Image:
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pass
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class Printer(abc.ABC):
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@abc.abstractmethod
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