forked from CGM_Public/pretix_original
177 lines
8.6 KiB
Python
177 lines
8.6 KiB
Python
import copy
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import logging
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from collections import OrderedDict
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from io import BytesIO
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from django import forms
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from django.contrib.staticfiles import finders
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from django.core.files import File
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from django.core.files.storage import default_storage
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from django.utils.translation import ugettext_lazy as _
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from pretix.base.ticketoutput import BaseTicketOutput
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from pretix.control.forms import ExtFileField
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logger = logging.getLogger('pretix.plugins.ticketoutputpdf')
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class PdfTicketOutput(BaseTicketOutput):
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identifier = 'pdf'
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verbose_name = _('PDF output')
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download_button_text = _('Download PDF')
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download_button_icon = 'fa-print'
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def generate(self, order):
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from reportlab.graphics.shapes import Drawing
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from reportlab.pdfgen import canvas
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from reportlab.lib import pagesizes, units
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from reportlab.graphics.barcode.qr import QrCodeWidget
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from reportlab.graphics import renderPDF
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from PyPDF2 import PdfFileWriter, PdfFileReader
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pagesize = self.settings.get('pagesize', default='A4')
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if hasattr(pagesizes, pagesize):
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pagesize = getattr(pagesizes, pagesize)
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else:
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pagesize = pagesizes.A4
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orientation = self.settings.get('orientation', default='portrait')
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if hasattr(pagesizes, orientation):
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pagesize = getattr(pagesizes, orientation)(pagesize)
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buffer = BytesIO()
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p = canvas.Canvas(buffer, pagesize=pagesize)
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for op in order.positions.all().select_related('item', 'variation'):
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event_s = self.settings.get('event_s', default=22, as_type=float)
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if event_s:
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p.setFont("Helvetica", event_s)
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event_x = self.settings.get('event_x', default=15, as_type=float)
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event_y = self.settings.get('event_y', default=235, as_type=float)
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p.drawString(event_x * units.mm, event_y * units.mm, str(self.event.name))
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name_s = self.settings.get('name_s', default=17, as_type=float)
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if name_s:
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p.setFont("Helvetica", name_s)
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name_x = self.settings.get('name_x', default=15, as_type=float)
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name_y = self.settings.get('name_y', default=220, as_type=float)
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item = str(op.item.name)
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if op.variation:
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item += " – " + str(op.variation)
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p.drawString(name_x * units.mm, name_y * units.mm, item)
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price_s = self.settings.get('price_s', default=17, as_type=float)
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if price_s:
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p.setFont("Helvetica", price_s)
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price_x = self.settings.get('price_x', default=15, as_type=float)
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price_y = self.settings.get('price_y', default=210, as_type=float)
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p.drawString(price_x * units.mm, price_y * units.mm, "%s %s" % (str(op.price), self.event.currency))
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qr_s = self.settings.get('qr_s', default=80, as_type=float)
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if qr_s:
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reqs = qr_s * units.mm
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qrw = QrCodeWidget(op.secret, barLevel='H')
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b = qrw.getBounds()
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w = b[2] - b[0]
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h = b[3] - b[1]
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d = Drawing(reqs, reqs, transform=[reqs / w, 0, 0, reqs / h, 0, 0])
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d.add(qrw)
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qr_x = self.settings.get('qr_x', default=10, as_type=float)
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qr_y = self.settings.get('qr_y', default=130, as_type=float)
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renderPDF.draw(d, p, qr_x * units.mm, qr_y * units.mm)
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code_s = self.settings.get('code_s', default=11, as_type=float)
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if code_s:
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p.setFont("Helvetica", code_s)
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code_x = self.settings.get('code_x', default=15, as_type=float)
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code_y = self.settings.get('code_y', default=130, as_type=float)
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p.drawString(code_x * units.mm, code_y * units.mm, op.secret)
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attendee_s = self.settings.get('attendee_s', default=0, as_type=float)
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if code_s and op.attendee_name:
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p.setFont("Helvetica", attendee_s)
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attendee_x = self.settings.get('attendee_x', default=15, as_type=float)
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attendee_y = self.settings.get('attendee_y', default=100, as_type=float)
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p.drawString(attendee_x * units.mm, attendee_y * units.mm, op.attendee_name)
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p.showPage()
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p.save()
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buffer.seek(0)
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new_pdf = PdfFileReader(buffer)
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output = PdfFileWriter()
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bg_file = self.settings.get('background', as_type=File)
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if isinstance(bg_file, File):
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bgf = default_storage.open(bg_file.name, "rb")
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else:
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bgf = open(finders.find('pretixpresale/pdf/ticket_default_a4.pdf'), "rb")
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bg_pdf = PdfFileReader(bgf)
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for page in new_pdf.pages:
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bg_page = copy.copy(bg_pdf.getPage(0))
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bg_page.mergePage(page)
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output.addPage(bg_page)
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outbuffer = BytesIO()
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output.write(outbuffer)
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outbuffer.seek(0)
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return 'order%s%s.pdf' % (self.event.slug, order.code), 'application/pdf', outbuffer.read()
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@property
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def settings_form_fields(self) -> dict:
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return OrderedDict(
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list(super().settings_form_fields.items()) + [
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('paper_size',
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forms.ChoiceField(
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label=_('Paper size'),
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choices=(
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('A4', 'A4'),
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('A5', 'A5'),
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('B4', 'B4'),
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('B5', 'B5'),
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('letter', 'Letter'),
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('legal', 'Legal'),
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),
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required=False
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)),
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('orientation',
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forms.ChoiceField(
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label=_('Paper orientation'),
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choices=(
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('portrait', _('Portrait')),
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('landscape', _('Landscape')),
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),
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required=False
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)),
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('background',
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ExtFileField(
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label=_('Background PDF'),
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ext_whitelist=(".pdf", ),
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required=False
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)),
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('qr_x', forms.FloatField(label=_('QR-Code x position (mm)'), required=False)),
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('qr_y', forms.FloatField(label=_('QR-Code y position (mm)'), required=False)),
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('qr_s', forms.FloatField(label=_('QR-Code size (mm)'), required=False)),
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('code_x', forms.FloatField(label=_('Ticket code x position (mm)'), required=False)),
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('code_y', forms.FloatField(label=_('Ticket code y position (mm)'), required=False)),
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('code_s', forms.FloatField(label=_('Ticket code size (mm)'), required=False,
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help_text=_('Visible by default, set this to 0 to hide the element.'))),
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('name_x', forms.FloatField(label=_('Product name x position (mm)'), required=False)),
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('name_y', forms.FloatField(label=_('Product name y position (mm)'), required=False)),
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('name_s', forms.FloatField(label=_('Product name size (mm)'), required=False,
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help_text=_('Visible by default, set this to 0 to hide the element.'))),
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('price_x', forms.FloatField(label=_('Price x position (mm)'), required=False)),
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('price_y', forms.FloatField(label=_('Price y position (mm)'), required=False)),
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('price_s', forms.FloatField(label=_('Price size (mm)'), required=False,
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help_text=_('Visible by default, set this to 0 to hide the element.'))),
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('event_x', forms.FloatField(label=_('Event name x position (mm)'), required=False)),
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('event_y', forms.FloatField(label=_('Event name y position (mm)'), required=False)),
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('event_s', forms.FloatField(label=_('Event name size (mm)'), required=False,
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help_text=_('Visible by default, set this to 0 to hide the element.'))),
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('attendee_x', forms.FloatField(label=_('Attendee name x position (mm)'), required=False)),
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('attendee_y', forms.FloatField(label=_('Attendee name y position (mm)'), required=False)),
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('attendee_s', forms.FloatField(label=_('Attendee name size (mm)'), required=False,
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help_text=_('Invisible by default, set this to a number greater than 0 '
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'to show.')))
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]
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)
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