2bb6cd3506
git-svn-id: svn://svn.code.sf.net/p/fonttools/code/trunk@412 4cde692c-a291-49d1-8350-778aa11640f8
56 lines
1.4 KiB
Python
56 lines
1.4 KiB
Python
from fontTools.pens.basePen import AbstractPen
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__all__ = ["TransformPen"]
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class TransformPen(AbstractPen):
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"""Pen that passes transforms all coordinates, and passes them
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to another pen.
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"""
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def __init__(self, outPen, transformation):
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if not hasattr(transformation, "transformPoint"):
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from fontTools.misc.transform import Transform
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transformation = Transform(*transformation)
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self._transformation = transformation
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self._transformPoint = transformation.transformPoint
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self._outPen = outPen
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self._stack = []
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def moveTo(self, pt):
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self._outPen.moveTo(self._transformPoint(pt))
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def lineTo(self, pt):
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self._outPen.lineTo(self._transformPoint(pt))
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def curveTo(self, *points):
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self._outPen.curveTo(*self._transformPoints(points))
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def qCurveTo(self, *points):
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self._outPen.qCurveTo(*self._transformPoints(points))
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def _transformPoints(self, points):
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new = []
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transformPoint = self._transformPoint
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for pt in points:
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new.append(transformPoint(pt))
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return new
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def closePath(self):
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self._outPen.closePath()
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def addComponent(self, glyphName, transformation):
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transformation = self._transformation.transform(transformation)
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self._outPen.addComponent(glyphName, transformation)
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if __name__ == "__main__":
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from fontTools.pens.basePen import _TestPen
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pen = TransformPen(_TestPen(None), (2, 0, 0.5, 2, -10, 0))
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pen.moveTo((0, 0))
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pen.lineTo((0, 100))
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pen.curveTo((50, 75), (60, 50), (50, 25), (0, 0))
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pen.closePath()
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