/usr/lib/python3/dist-packages/fontTools/pens/transformPen.py is in python3-fonttools 3.21.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 | from __future__ import print_function, division, absolute_import
from fontTools.misc.py23 import *
from fontTools.pens.filterPen import FilterPen
__all__ = ["TransformPen"]
class TransformPen(FilterPen):
"""Pen that transforms all coordinates using a Affine transformation,
and passes them to another pen.
"""
def __init__(self, outPen, transformation):
"""The 'outPen' argument is another pen object. It will receive the
transformed coordinates. The 'transformation' argument can either
be a six-tuple, or a fontTools.misc.transform.Transform object.
"""
super(TransformPen, self).__init__(outPen)
if not hasattr(transformation, "transformPoint"):
from fontTools.misc.transform import Transform
transformation = Transform(*transformation)
self._transformation = transformation
self._transformPoint = transformation.transformPoint
self._stack = []
def moveTo(self, pt):
self._outPen.moveTo(self._transformPoint(pt))
def lineTo(self, pt):
self._outPen.lineTo(self._transformPoint(pt))
def curveTo(self, *points):
self._outPen.curveTo(*self._transformPoints(points))
def qCurveTo(self, *points):
if points[-1] is None:
points = self._transformPoints(points[:-1]) + [None]
else:
points = self._transformPoints(points)
self._outPen.qCurveTo(*points)
def _transformPoints(self, points):
transformPoint = self._transformPoint
return [transformPoint(pt) for pt in points]
def closePath(self):
self._outPen.closePath()
def endPath(self):
self._outPen.endPath()
def addComponent(self, glyphName, transformation):
transformation = self._transformation.transform(transformation)
self._outPen.addComponent(glyphName, transformation)
if __name__ == "__main__":
from fontTools.pens.basePen import _TestPen
pen = TransformPen(_TestPen(None), (2, 0, 0.5, 2, -10, 0))
pen.moveTo((0, 0))
pen.lineTo((0, 100))
pen.curveTo((50, 75), (60, 50), (50, 25), (0, 0))
pen.closePath()
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