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PDF editor: Allow to easily change the page size

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Raphael Michel
2019-09-03 11:21:48 +02:00
parent daa5383b89
commit 1a25138bef
5 changed files with 80 additions and 6 deletions
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19
src/pretix/control/templates/pretixcontrol/pdf/index.html
View File

@@ -175,22 +175,33 @@
<div class="row control-group pdf-info">
<div class="col-sm-6">
<label>{% trans "Width (mm)" %}</label><br>
<input type="number" id="pdf-info-width" class="input-block-level form-control" disabled>
<input type="number" id="pdf-info-width" class="input-block-level form-control">
</div>
<div class="col-sm-6">
<label>{% trans "Height (mm)" %}</label><br>
<input type="number" id="pdf-info-height" class="input-block-level form-control" disabled>
<input type="number" id="pdf-info-height" class="input-block-level form-control">
</div>
</div>
<div class="row control-group pdf-info">
<div class="col-sm-12">
<label>{% trans "Background PDF" %}</label><br>
<span class="btn btn-default fileinput-button">
<p>
<button class="btn btn-default background-button" id="pdf-empty">
{% trans "Create empty background" %}
</button>
</p>
<span class="btn btn-default fileinput-button background-button">
<i class="fa fa-upload"></i>
<span>{% trans "Upload new background" %}</span>
<span>{% trans "Upload custom background" %}</span>
<input id="fileupload" type="file" name="background">
</span>
</div>
<div class="col-sm-12 help-inline">
<p>
After you changed the page size, you need to create a new empty background. If you
want to use a custom background, it already needs to have the correct size.
</p>
</div>
</div>
<div class="row control-group position">
<div class="col-sm-6">

31
src/pretix/control/views/pdf.py
View File

@@ -2,8 +2,10 @@ import json
import logging
import mimetypes
from datetime import timedelta
from io import BytesIO
from django.core.files import File
from django.core.files.base import ContentFile
from django.core.files.storage import default_storage
from django.http import (
FileResponse, HttpResponse, HttpResponseBadRequest, JsonResponse,
@@ -14,6 +16,8 @@ from django.utils.crypto import get_random_string
from django.utils.timezone import now
from django.utils.translation import ugettext as _
from django.views.generic import TemplateView
from PyPDF2 import PdfFileWriter
from reportlab.lib.units import mm
from pretix.base.i18n import language
from pretix.base.models import CachedFile, InvoiceAddress, OrderPosition
@@ -117,6 +121,33 @@ class BaseEditorView(EventPermissionRequiredMixin, TemplateView):
self.request.event.settings.set(self.get_background_settings_key(), 'file://' + newname)
def post(self, request, *args, **kwargs):
if "emptybackground" in request.POST:
p = PdfFileWriter()
p.addBlankPage(
width=float(request.POST.get('width')) * mm,
height=float(request.POST.get('height')) * mm,
)
buffer = BytesIO()
p.write(buffer)
buffer.seek(0)
c = CachedFile()
c.expires = now() + timedelta(days=7)
c.date = now()
c.filename = 'background_preview.pdf'
c.type = 'application/pdf'
c.save()
c.file.save('empty.pdf', ContentFile(buffer.read()))
c.refresh_from_db()
return JsonResponse({
"status": "ok",
"id": c.id,
"url": reverse('control:pdf.background', kwargs={
'event': request.event.slug,
'organizer': request.organizer.slug,
'filename': str(c.id)
})
})
if "background" in request.FILES:
error, fileobj = self.process_upload()
if error: