[instanceworker] use zopfli compression on woff files

Author: chrissimpkins

src/slice/instanceworker.py

@@ -18,6 +18,7 @@
 import traceback
 
 from fontTools.misc.textTools import num2binary
+from fontTools.ttLib import sfnt
 from fontTools.ttLib.ttFont import TTFont
 from fontTools.varLib.instancer import (
     instantiateVariableFont as partial_instantiateVariableFont,
@@ -66,6 +67,9 @@ def run(self):
             # edit bit flags
             self.edit_bit_flags()
             # write to disk
+            # set fonttools to use zopfli compression on woff files
+            sfnt.USE_ZOPFLI = True
+            # sfnt.ZLIB_COMPRESSION_LEVEL = 9
             self.ttfont.save(self.outpath)
         except Exception as e:
             self.signals.error.emit(f"{e}")
@@ -95,13 +99,9 @@ def instantiate_variable_font(self):
                 self.ttfont, axis_instance_data, inplace=True, optimize=True
             )
         else:
-            static_instantiateVariableFont(
-                self.ttfont, axis_instance_data, inplace=True
-            )
+            static_instantiateVariableFont(self.ttfont, axis_instance_data, inplace=True)
         print("\nAXIS INSTANCE VALUES")
-        print(
-            f"Instantiated variable font with axis definitions:\n{axis_instance_data}"
-        )
+        print(f"Instantiated variable font with axis definitions:\n{axis_instance_data}")
         print(f"Partial instance: {is_partial_instance}")
 
     def edit_name_table(self):
@@ -161,18 +161,10 @@ def edit_name_table(self):
         print(f"nameID3: {self.ttfont['name'].getName(3, *name_record_plat_enc_lang)}")
         print(f"nameID4: {self.ttfont['name'].getName(4, *name_record_plat_enc_lang)}")
         print(f"nameID6: {self.ttfont['name'].getName(6, *name_record_plat_enc_lang)}")
-        print(
-            f"nameID16: {self.ttfont['name'].getName(16, *name_record_plat_enc_lang)}"
-        )
-        print(
-            f"nameID17: {self.ttfont['name'].getName(17, *name_record_plat_enc_lang)}"
-        )
-        print(
-            f"nameID21: {self.ttfont['name'].getName(21, *name_record_plat_enc_lang)}"
-        )
-        print(
-            f"nameID22: {self.ttfont['name'].getName(22, *name_record_plat_enc_lang)}"
-        )
+        print(f"nameID16: {self.ttfont['name'].getName(16, *name_record_plat_enc_lang)}")
+        print(f"nameID17: {self.ttfont['name'].getName(17, *name_record_plat_enc_lang)}")
+        print(f"nameID21: {self.ttfont['name'].getName(21, *name_record_plat_enc_lang)}")
+        print(f"nameID22: {self.ttfont['name'].getName(22, *name_record_plat_enc_lang)}")
 
     def edit_bit_flags(self):
         # edit the OS/2.fsSelection bit flag
@@ -205,6 +197,4 @@ def edit_bit_flags(self):
             f"{self.bit_model.get_head_instance_data()}"
         )
         print(f"Pre head.macStyle:  {num2binary(pre_head_macstyle_int, bits=16)}")
-        print(
-            f"Post head.macStyle: {num2binary(self.ttfont['head'].macStyle, bits=16)}"
-        )
+        print(f"Post head.macStyle: {num2binary(self.ttfont['head'].macStyle, bits=16)}")