1 files changed, 23 insertions, 0 deletions
diff --git a/misc/pylib/fontbuild/decomposeGlyph.py b/misc/pylib/fontbuild/decomposeGlyph.py
new file mode 100644
index 000000000..0470fa60b
--- /dev/null
+++ b/misc/pylib/fontbuild/decomposeGlyph.py
@@ -0,0 +1,23 @@
+def decomposeGlyph(font, glyph):
+    """Moves the components of a glyph to its outline."""
+    if len(glyph.components):
+        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)