1 files changed, 20 insertions, 8 deletions
diff --git a/scripts/lib/fontbuild/decomposeGlyph.py b/scripts/lib/fontbuild/decomposeGlyph.py
index b3db2d6..8cab1b4 100644
--- a/scripts/lib/fontbuild/decomposeGlyph.py
+++ b/scripts/lib/fontbuild/decomposeGlyph.py
@@ -2,11 +2,23 @@ def decomposeGlyph(font, glyphName):
     """Moves the components of a glyph to its outline."""
 
     glyph = font[glyphName]
-    for component in glyph.components:
-        componentGlyph = font[component.baseGlyph]
-        for contour in componentGlyph:
-            contour = contour.copy()
-            contour.scale(component.scale)
-            contour.move(component.offset)
-            glyph.appendContour(contour)
-    glyph.clear(contours=False, anchors=False, guides=False)
+    deepCopyContours(font, glyph, glyph, (0, 0), (1, 1))
+    glyph.clearComponents()
+
+
+def deepCopyContours(font, parent, component, offset, scale):
+    """Copy contours to parent from component, including nested components."""
+
+    for nested in component.components:
+        deepCopyContours(
+            font, parent, font[nested.baseGlyph],
+            (offset[0] + nested.offset[0], offset[1] + nested.offset[1]),
+            (scale[0] * nested.scale[0], scale[1] * nested.scale[1]))
+
+    if component == parent:
+        return
+    for contour in component:
+        contour = contour.copy()
+        contour.scale(scale)
+        contour.move(offset)
+        parent.appendContour(contour)