Support custom fonts

src/pretix/plugins/ticketoutputpdf/signals.py

@@ -1,4 +1,4 @@
-from django.dispatch import Signal, receiver
+from django.dispatch import receiver
 from django.template.loader import get_template
 from django.urls import resolve
 
@@ -6,6 +6,9 @@ from pretix.base.signals import (
     register_data_exporters, register_ticket_outputs,
 )
 from pretix.control.signals import html_head
+from pretix.presale.style import (  # NOQA: legacy import
+    get_fonts, register_fonts,
+)
 
 
 @receiver(register_ticket_outputs, dispatch_uid="output_pdf")
@@ -30,35 +33,3 @@ def html_head_presale(sender, request=None, **kwargs):
         })
     else:
         return ""
-
-
-register_fonts = Signal()
-"""
-Return a dictionaries of the following structure. Paths should be relative to static root.
-
-{
-    "font name": {
-        "regular": {
-            "truetype": "….ttf",
-            "woff": "…",
-            "woff2": "…"
-        },
-        "bold": {
-            ...
-        },
-        "italic": {
-            ...
-        },
-        "bolditalic": {
-            ...
-        }
-    }
-}
-"""
-
-
-def get_fonts():
-    f = {}
-    for recv, value in register_fonts.send(0):
-        f.update(value)
-    return f