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[TTGlyphPen] Move checks for closed contours

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We probably don't want to raise errors in init, which allows a drawer
to reset the pen state.
This commit is contained in:
James Godfrey-Kittle 2015-11-05 13:54:51 -08:00
parent 943d258bdb
commit 9f5c51897c
1 changed files with 7 additions and 3 deletions
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10
Lib/fontTools/pens/ttGlyphPen.py
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@ -21,7 +21,6 @@ class TTGlyphPen(BasePen):
self.init()
def init(self):
assert self._getCurrentPoint() is None, "Didn't close last contour. %s %s %s %s"
self.points = []
self.endPts = []
self.types = []
@ -31,12 +30,16 @@ class TTGlyphPen(BasePen):
self.points.append([int(coord) for coord in pt])
self.types.append(onCurve)
def _isClosed(self):
return (
(not self.points) or
(self.endPts and self.endPts[-1] == len(self.points) - 1))
def _lineTo(self, pt):
self._addPoint(pt, 1)
def _moveTo(self, pt):
assert (not self.points) or (self.endPts[-1] == len(self.points) - 1), (
'"move"-type point must begin a new contour.')
assert self._isClosed(), '"move"-type point must begin a new contour.'
self._addPoint(pt, 1)
def _qCurveToOne(self, pt1, pt2):
@ -72,6 +75,7 @@ class TTGlyphPen(BasePen):
def glyph(self):
glyph = Glyph()
assert self._isClosed(), "Didn't close last contour."
components = []
for glyphName, transformation in self.components: