fonttools/Lib/robofab/pens/digestPen.py
Just van Rossum feb0046176 Moved Data, Lib and install.py one level down the tree
git-svn-id: http://svn.robofab.com/trunk@67 b5fa9d6c-a76f-4ffd-b3cb-f825fc41095c
2008-03-11 09:18:32 +00:00

69 lines
1.6 KiB
Python
Executable File

"""A couple of point pens which return the glyph as a list of basic values."""
from robofab.pens.pointPen import AbstractPointPen
class DigestPointPen(AbstractPointPen):
"""Calculate a digest of all points
AND coordinates
AND components
in a glyph.
"""
def __init__(self, ignoreSmoothAndName=False):
self._data = []
self.ignoreSmoothAndName = ignoreSmoothAndName
def beginPath(self):
self._data.append('beginPath')
def endPath(self):
self._data.append('endPath')
def addPoint(self, pt, segmentType=None, smooth=False, name=None, **kwargs):
if self.ignoreSmoothAndName:
self._data.append((pt, segmentType))
else:
self._data.append((pt, segmentType, smooth, name))
def addComponent(self, baseGlyphName, transformation):
t = []
for v in transformation:
if int(v) == v:
t.append(int(v))
else:
t.append(v)
self._data.append((baseGlyphName, tuple(t)))
def getDigest(self):
return tuple(self._data)
def getDigestPointsOnly(self):
"""Return a tuple with all coordinates of all points,
but without smooth info or drawing instructions.
For instance if you want to compare 2 glyphs in shape,
but not interpolatability.
"""
points = []
for item in self._data:
points.append(item[0])
points.sort()
return tuple(points)
class DigestPointStructurePen(DigestPointPen):
"""Calculate a digest of the structure of the glyph
NOT coordinates
NOT values.
"""
def addPoint(self, pt, segmentType=None, smooth=False, name=None, **kwargs):
self._data.append(segmentType)
def addComponent(self, baseGlyphName, transformation):
self._data.append(baseGlyphName)