Files
report-print-send/printer_zpl2/models/printing_label_zpl2.py
2020-06-30 11:57:39 +02:00

227 lines
9.4 KiB
Python

# Copyright (C) 2016 SYLEAM (<http://www.syleam.fr>)
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
import time
import base64
import datetime
import io
import logging
from PIL import Image, ImageOps
from odoo import 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.')
restore_saved_config = fields.Boolean(
string="Restore printer's configuration",
help="Restore printer's saved configuration and end of each label ",
default=True)
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 = []
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 = safe_eval(component.data, eval_args) or ''
# 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,
))
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 = dict([
(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 == '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 == 'graphic':
image = component.graphic_image or data
pil_image = Image.open(io.BytesIO(
base64.b64decode(image))).convert('RGB')
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 = 'MM,A{}'.format(data)
barcode_arguments = dict([
(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()
for page_number in range(page_count):
# Initialize printer's configuration
label_data.label_start()
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 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))
# Send the label to printer
label_contents = label._generate_zpl2_data(
record, page_count=page_count, **extra)
printer.print_document(
report=None, content=label_contents, doc_format='raw')
return True