Files
report-print-send/printer_zpl2/models/printing_label_zpl2.py
2021-11-12 16:07:03 +01:00

465 lines
18 KiB
Python

# Copyright (C) 2016 SYLEAM (<http://www.syleam.fr>)
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
import base64
import datetime
import io
import logging
import time
import requests
from PIL import Image, ImageOps
from odoo import _, api, exceptions, fields, models
from odoo.tools.safe_eval import safe_eval
_logger = logging.getLogger(__name__)
try:
import zpl2
except ImportError:
_logger.debug("Cannot `import zpl2`.")
class PrintingLabelZpl2(models.Model):
_name = "printing.label.zpl2"
_description = "ZPL II Label"
_order = "model_id, name, id"
name = fields.Char(required=True, help="Label Name.")
active = fields.Boolean(default=True)
description = fields.Char(help="Long description for this label.")
model_id = fields.Many2one(
comodel_name="ir.model",
string="Model",
required=True,
help="Model used to print this label.",
)
origin_x = fields.Integer(
required=True,
default=10,
help="Origin point of the contents in the label, X coordinate.",
)
origin_y = fields.Integer(
required=True,
default=10,
help="Origin point of the contents in the label, Y coordinate.",
)
width = fields.Integer(
required=True,
default=480,
help="Width of the label, will be set on the printer before printing.",
)
component_ids = fields.One2many(
comodel_name="printing.label.zpl2.component",
inverse_name="label_id",
string="Label Components",
help="Components which will be printed on the label.",
copy=True,
)
restore_saved_config = fields.Boolean(
string="Restore printer's configuration",
help="Restore printer's saved configuration and end of each label ",
default=True,
)
action_window_id = fields.Many2one(
comodel_name="ir.actions.act_window", string="Action", readonly=True
)
test_print_mode = fields.Boolean(string="Mode Print")
test_labelary_mode = fields.Boolean(string="Mode Labelary")
record_id = fields.Integer(string="Record ID", default=1)
extra = fields.Text(string="Extra", default="{}")
printer_id = fields.Many2one(comodel_name="printing.printer", string="Printer")
labelary_image = fields.Binary(string='Image from Labelary',
compute='_compute_labelary_image')
labelary_dpmm = fields.Selection(
selection=[
("6dpmm", "6dpmm (152 pdi)"),
("8dpmm", "8dpmm (203 dpi)"),
("12dpmm", "12dpmm (300 pdi)"),
("24dpmm", "24dpmm (600 dpi)"),
],
string="Print density",
required=True,
default="8dpmm",
)
labelary_width = fields.Float(string="Width in mm", default=140)
labelary_height = fields.Float(string="Height in mm", default=70)
data_type = fields.Selection(
string="Labels components data type",
selection=[("und", "Undefined")],
help="This allows to specify the type of the data encoded in label components",
)
@api.model
def _get_component_data(self, component, eval_args):
return safe_eval(component.data, eval_args) or ""
def _get_to_data_to_print(
self,
record,
page_number=1,
page_count=1,
label_offset_x=0,
label_offset_y=0,
**extra
):
to_print = []
for component in self.component_ids:
eval_args = extra
eval_args.update(
{
"object": record,
"page_number": str(page_number + 1),
"page_count": str(page_count),
"time": time,
"datetime": datetime,
}
)
data = self._get_component_data(component, eval_args)
if data == "component_not_show":
continue
# Generate a list of elements if the component is repeatable
for idx in range(
component.repeat_offset,
component.repeat_offset + component.repeat_count,
):
printed_data = data
# Pick the right value if data is a collection
if isinstance(data, (list, tuple, set, models.BaseModel)):
# If we reached the end of data, quit the loop
if idx >= len(data):
break
# Set the real data to display
printed_data = data[idx]
position = idx - component.repeat_offset
to_print.append(
(
component,
printed_data,
label_offset_x + component.repeat_offset_x * position,
label_offset_y + component.repeat_offset_y * position,
)
)
return to_print
# flake8: noqa: C901
def _generate_zpl2_components_data(
self,
label_data,
record,
page_number=1,
page_count=1,
label_offset_x=0,
label_offset_y=0,
**extra
):
self.ensure_one()
# Add all elements to print in a list of tuples :
# [(component, data, offset_x, offset_y)]
to_print = self._get_to_data_to_print(
record, page_number, page_count, label_offset_x, label_offset_y, **extra
)
for (component, data, offset_x, offset_y) in to_print:
component_offset_x = component.origin_x + offset_x
component_offset_y = component.origin_y + offset_y
if component.component_type == "text":
barcode_arguments = {
field_name: component[field_name]
for field_name in [
zpl2.ARG_FONT,
zpl2.ARG_ORIENTATION,
zpl2.ARG_HEIGHT,
zpl2.ARG_WIDTH,
zpl2.ARG_REVERSE_PRINT,
zpl2.ARG_IN_BLOCK,
zpl2.ARG_BLOCK_WIDTH,
zpl2.ARG_BLOCK_LINES,
zpl2.ARG_BLOCK_SPACES,
zpl2.ARG_BLOCK_JUSTIFY,
zpl2.ARG_BLOCK_LEFT_MARGIN,
]
}
label_data.font_data(
component_offset_x, component_offset_y, barcode_arguments, data
)
elif component.component_type == "zpl2_raw":
label_data._write_command(data)
elif component.component_type == "rectangle":
label_data.graphic_box(
component_offset_x,
component_offset_y,
{
zpl2.ARG_WIDTH: component.width,
zpl2.ARG_HEIGHT: component.height,
zpl2.ARG_THICKNESS: component.thickness,
zpl2.ARG_COLOR: component.color,
zpl2.ARG_ROUNDING: component.rounding,
},
)
elif component.component_type == "diagonal":
label_data.graphic_diagonal_line(
component_offset_x,
component_offset_y,
{
zpl2.ARG_WIDTH: component.width,
zpl2.ARG_HEIGHT: component.height,
zpl2.ARG_THICKNESS: component.thickness,
zpl2.ARG_COLOR: component.color,
zpl2.ARG_DIAGONAL_ORIENTATION: component.diagonal_orientation,
},
)
elif component.component_type == "graphic":
# During the on_change don't take the bin_size
image = (
component.with_context(bin_size_graphic_image=False).graphic_image
or data
)
try:
pil_image = Image.open(io.BytesIO(base64.b64decode(image))).convert(
"RGB"
)
except Exception:
continue
if component.width and component.height:
pil_image = pil_image.resize((component.width, component.height))
# Invert the colors
if component.reverse_print:
pil_image = ImageOps.invert(pil_image)
# Rotation (PIL rotates counter clockwise)
if component.orientation == zpl2.ORIENTATION_ROTATED:
pil_image = pil_image.transpose(Image.ROTATE_270)
elif component.orientation == zpl2.ORIENTATION_INVERTED:
pil_image = pil_image.transpose(Image.ROTATE_180)
elif component.orientation == zpl2.ORIENTATION_BOTTOM_UP:
pil_image = pil_image.transpose(Image.ROTATE_90)
label_data.graphic_field(
component_offset_x, component_offset_y, pil_image
)
elif component.component_type == "circle":
label_data.graphic_circle(
component_offset_x,
component_offset_y,
{
zpl2.ARG_DIAMETER: component.width,
zpl2.ARG_THICKNESS: component.thickness,
zpl2.ARG_COLOR: component.color,
},
)
elif component.component_type == "sublabel":
component_offset_x += component.sublabel_id.origin_x
component_offset_y += component.sublabel_id.origin_y
component.sublabel_id._generate_zpl2_components_data(
label_data,
data,
label_offset_x=component_offset_x,
label_offset_y=component_offset_y,
)
else:
if component.component_type == zpl2.BARCODE_QR_CODE:
# Adding Control Arguments to QRCode data Label
data = "{}A,{}".format(component.error_correction, data)
barcode_arguments = {
field_name: component[field_name]
for field_name in [
zpl2.ARG_ORIENTATION,
zpl2.ARG_CHECK_DIGITS,
zpl2.ARG_HEIGHT,
zpl2.ARG_INTERPRETATION_LINE,
zpl2.ARG_INTERPRETATION_LINE_ABOVE,
zpl2.ARG_SECURITY_LEVEL,
zpl2.ARG_COLUMNS_COUNT,
zpl2.ARG_ROWS_COUNT,
zpl2.ARG_TRUNCATE,
zpl2.ARG_MODULE_WIDTH,
zpl2.ARG_BAR_WIDTH_RATIO,
zpl2.ARG_MODEL,
zpl2.ARG_MAGNIFICATION_FACTOR,
zpl2.ARG_ERROR_CORRECTION,
zpl2.ARG_MASK_VALUE,
]
}
label_data.barcode_data(
component.origin_x + offset_x,
component.origin_y + offset_y,
component.component_type,
barcode_arguments,
data,
)
def _generate_zpl2_data(self, record, page_count=1, **extra):
self.ensure_one()
label_data = zpl2.Zpl2()
labelary_emul = extra.get("labelary_emul", False)
for page_number in range(page_count):
# Initialize printer's configuration
label_data.label_start()
if not labelary_emul:
label_data.print_width(self.width)
label_data.label_encoding()
label_data.label_home(self.origin_x, self.origin_y)
self._generate_zpl2_components_data(
label_data,
record,
page_number=page_number,
page_count=page_count,
**extra
)
# Restore printer's configuration and end the label
if self.restore_saved_config:
label_data.configuration_update(zpl2.CONF_RECALL_LAST_SAVED)
label_data.label_end()
return label_data.output()
def fill_component(self, line):
for component in self.component_ids:
json = {
"product_barcode": line.product_barcode,
"lot_barcode": line.lot_barcode,
"uom": str(line.product_qty) + " " + line.product_id.uom_id.name,
"package_barcode": line.package_barcode,
"product_qty": line.product_qty,
}
component.data = json
def print_label(self, printer, record, page_count=1, **extra):
for label in self:
if record._name != label.model_id.model:
raise exceptions.UserError(
_("This label cannot be used on {model}").format(model=record._name)
)
if label.data_type == "und":
for component in self.component_ids:
eval_args = extra
eval_args.update(
{"object": record, "time": time, "datetime": datetime}
)
data = safe_eval(component.data, eval_args) or ""
if data == "component_not_show":
continue
# Send the label to printer
label_contents = label._generate_zpl2_data(
record, page_count=1, **extra
)
printer.print_document(
report=None, content=label_contents, doc_format="raw"
)
return True
def create_action(self):
for label in self.filtered(lambda record: not record.action_window_id):
label.action_window_id = self.env["ir.actions.act_window"].create(
{
"name": _("Print Label"),
"binding_model_id": label.model_id.id,
"res_model": "wizard.print.record.label",
"view_mode": "form",
"target": "new",
"binding_type": "action",
}
)
return True
def unlink_action(self):
self.mapped("action_window_id").unlink()
def import_zpl2(self):
self.ensure_one()
return {
"view_type": "form",
"view_mode": "form",
"res_model": "wizard.import.zpl2",
"type": "ir.actions.act_window",
"target": "new",
"context": {"default_label_id": self.id},
}
def _get_record(self):
self.ensure_one()
Obj = self.env[self.model_id.model]
record = Obj.search([("id", "=", self.record_id)], limit=1)
if not record:
record = Obj.search([], limit=1, order="id desc")
self.record_id = record.id
return record
def print_test_label(self):
for label in self:
if label.test_print_mode and label.record_id and label.printer_id:
record = label._get_record()
extra = safe_eval(label.extra, {"env": self.env})
if record:
label.print_label(label.printer_id, record, **extra)
@api.depends(
'record_id', 'labelary_dpmm', 'labelary_width', 'labelary_height',
'component_ids', 'origin_x', 'origin_y', 'test_labelary_mode')
def _compute_labelary_image(self):
for label in self:
label.labelary_image = label._generate_labelary_image()
def _generate_labelary_image(self):
self.ensure_one()
if not (
self.test_labelary_mode
and self.record_id
and self.labelary_width
and self.labelary_height
and self.labelary_dpmm
and self.component_ids
):
return False
record = self._get_record()
if record:
# If case there an error (in the data field with the safe_eval
# for exemple) the new component or the update is not lost.
try:
url = (
"http://api.labelary.com/v1/printers/"
"{dpmm}/labels/{width}x{height}/0/"
)
width = round(self.labelary_width / 25.4, 2)
height = round(self.labelary_height / 25.4, 2)
url = url.format(dpmm=self.labelary_dpmm, width=width, height=height)
extra = safe_eval(self.extra, {"env": self.env})
zpl_file = self._generate_zpl2_data(record, labelary_emul=True, **extra)
files = {"file": zpl_file}
headers = {"Accept": "image/png"}
response = requests.post(url, headers=headers, files=files, stream=True)
if response.status_code == 200:
# Add a padd
im = Image.open(io.BytesIO(response.content))
im_size = im.size
new_im = Image.new(
"RGB", (im_size[0] + 2, im_size[1] + 2), (164, 164, 164)
)
new_im.paste(im, (1, 1))
imgByteArr = io.BytesIO()
new_im.save(imgByteArr, format="PNG")
return base64.b64encode(imgByteArr.getvalue())
else:
_logger.warning(
_(
"Error with Labelary API. %s") % response.status_code)
except Exception as e:
_logger.warning(_("Error with Labelary API. %s") % e)
return False