Avoid new variants in Pango < 1.50.0

Kozea · Jan 12, 2025 · e5af66c · e5af66c
1 parent ecde033
commit e5af66c
Showing 1 changed file with 22 additions and 9 deletions.
diff --git a/weasyprint/text/constants.py b/weasyprint/text/constants.py
@@ -38,15 +38,28 @@
     'WRAP_CHAR': pango.PANGO_WRAP_CHAR,
     'WRAP_WORD_CHAR': pango.PANGO_WRAP_WORD_CHAR
 }
-PANGO_VARIANT = {
-    'normal': pango.PANGO_VARIANT_NORMAL,
-    'small-caps': pango.PANGO_VARIANT_SMALL_CAPS,
-    'all-small-caps': pango.PANGO_VARIANT_ALL_SMALL_CAPS,
-    'petite-caps': pango.PANGO_VARIANT_PETITE_CAPS,
-    'all-petite-caps': pango.PANGO_VARIANT_ALL_PETITE_CAPS,
-    'unicase': pango.PANGO_VARIANT_UNICASE,
-    'titling-caps': pango.PANGO_VARIANT_TITLE_CAPS,
-}
+
+if pango.pango_version() < 15000:
+    # Some variants have been added in Pango 1.50.
+    PANGO_VARIANT = {
+        'normal': pango.PANGO_VARIANT_NORMAL,
+        'small-caps': pango.PANGO_VARIANT_SMALL_CAPS,
+        'all-small-caps': pango.PANGO_VARIANT_SMALL_CAPS,
+        'petite-caps': pango.PANGO_VARIANT_SMALL_CAPS,
+        'all-petite-caps': pango.PANGO_VARIANT_SMALL_CAPS,
+        'unicase': pango.PANGO_VARIANT_NORMAL,
+        'titling-caps': pango.PANGO_VARIANT_NORMAL,
+    }
+else:
+    PANGO_VARIANT = {
+        'normal': pango.PANGO_VARIANT_NORMAL,
+        'small-caps': pango.PANGO_VARIANT_SMALL_CAPS,
+        'all-small-caps': pango.PANGO_VARIANT_ALL_SMALL_CAPS,
+        'petite-caps': pango.PANGO_VARIANT_PETITE_CAPS,
+        'all-petite-caps': pango.PANGO_VARIANT_ALL_PETITE_CAPS,
+        'unicase': pango.PANGO_VARIANT_UNICASE,
+        'titling-caps': pango.PANGO_VARIANT_TITLE_CAPS,
+    }
 
 # Language system tags
 # From https://docs.microsoft.com/typography/opentype/spec/languagetags