115 lines
3.6 KiB
Python
115 lines
3.6 KiB
Python
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from __future__ import print_function, division, absolute_import
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from fontTools.misc.py23 import *
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from fontTools.pens.t2CharStringPen import T2CharStringPen
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import unittest
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class T2CharStringPenTest(unittest.TestCase):
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def assertAlmostEqualProgram(self, expected, actual):
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self.assertEqual(len(expected), len(actual))
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for i1, i2 in zip(expected, actual):
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if isinstance(i1, basestring):
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self.assertIsInstance(i2, basestring)
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self.assertEqual(i1, i2)
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else:
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self.assertAlmostEqual(i1, i2)
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def test_draw_lines(self):
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pen = T2CharStringPen(100, {})
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pen.moveTo((0, 0))
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pen.lineTo((10, 0))
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pen.lineTo((10, 10))
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pen.lineTo((0, 10))
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pen.closePath() # no-op
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charstring = pen.getCharString(None, None)
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self.assertEqual(
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[100,
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0, 0, 'rmoveto',
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10, 0, 'rlineto',
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0, 10, 'rlineto',
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-10, 0, 'rlineto',
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'endchar'],
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charstring.program)
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def test_draw_curves(self):
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pen = T2CharStringPen(100, {})
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pen.moveTo((0, 0))
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pen.curveTo((10, 0), (20, 10), (20, 20))
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pen.curveTo((20, 30), (10, 40), (0, 40))
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pen.endPath() # no-op
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charstring = pen.getCharString(None, None)
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self.assertEqual(
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[100,
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0, 0, 'rmoveto',
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10, 0, 10, 10, 0, 10, 'rrcurveto',
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0, 10, -10, 10, -10, 0, 'rrcurveto',
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'endchar'],
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charstring.program)
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def test_default_width(self):
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pen = T2CharStringPen(None, {})
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charstring = pen.getCharString(None, None)
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self.assertEqual(['endchar'], charstring.program)
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def test_no_round(self):
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# no rounding is the default
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pen = T2CharStringPen(100.1, {}, roundTolerance=0.0)
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pen.moveTo((0, 0))
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pen.curveTo((10.1, 0.1), (19.9, 9.9), (20.49, 20.49))
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pen.curveTo((20.49, 30.49), (9.9, 39.9), (0.1, 40.1))
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pen.closePath()
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charstring = pen.getCharString(None, None)
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self.assertAlmostEqualProgram(
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[100.1,
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0, 0, 'rmoveto',
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10.1, 0.1, 9.8, 9.8, 0.59, 10.59, 'rrcurveto',
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0, 10, -10.59, 9.41, -9.8, 0.2, 'rrcurveto',
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'endchar'],
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charstring.program)
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def test_round_all(self):
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# 1.0 rounds everything
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pen = T2CharStringPen(100.1, {}, roundTolerance=1.0)
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pen.moveTo((0, 0))
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pen.curveTo((10.1, 0.1), (19.9, 9.9), (20.49, 20.49))
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pen.curveTo((20.49, 30.49), (9.9, 39.9), (0.1, 40.1))
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pen.closePath()
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charstring = pen.getCharString(None, None)
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self.assertEqual(
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[100,
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0, 0, 'rmoveto',
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10, 0, 10, 10, 0, 10, 'rrcurveto',
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0, 10, -10, 10, -10, 0, 'rrcurveto',
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'endchar'],
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charstring.program)
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def test_round_some(self):
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pen = T2CharStringPen(100, {}, roundTolerance=0.2)
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pen.moveTo((0, 0))
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# the following two are rounded as within the tolerance
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pen.lineTo((10.1, 0.1))
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pen.lineTo((19.9, 9.9))
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# this one is not rounded as it exceeds the tolerance
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pen.lineTo((20.49, 20.49))
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pen.closePath()
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charstring = pen.getCharString(None, None)
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self.assertAlmostEqualProgram(
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[100,
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0, 0, 'rmoveto',
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10, 0, 'rlineto',
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10, 10, 'rlineto',
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0.49, 10.49, 'rlineto',
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'endchar'],
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charstring.program)
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if __name__ == '__main__':
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import sys
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sys.exit(unittest.main())
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