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from fontTools.pens.basePen import \
AbstractPen, BasePen, decomposeSuperBezierSegment, decomposeQuadraticSegment
from fontTools.pens.pointPen import AbstractPointPen
from fontTools.misc.loggingTools import CapturingLogHandler
import unittest
class _TestPen(BasePen):
def __init__(self):
BasePen.__init__(self, glyphSet={})
self._commands = []
def __repr__(self):
return " ".join(self._commands)
def getCurrentPoint(self):
return self._getCurrentPoint()
def _moveTo(self, pt):
self._commands.append("%s %s moveto" % (pt[0], pt[1]))
def _lineTo(self, pt):
self._commands.append("%s %s lineto" % (pt[0], pt[1]))
def _curveToOne(self, bcp1, bcp2, pt):
self._commands.append("%s %s %s %s %s %s curveto" %
(bcp1[0], bcp1[1],
bcp2[0], bcp2[1],
pt[0], pt[1]))
def _closePath(self):
self._commands.append("closepath")
def _endPath(self):
self._commands.append("endpath")
class _TestGlyph:
def draw(self, pen):
pen.moveTo((0.0, 0.0))
pen.lineTo((0.0, 100.0))
pen.curveTo((50.0, 75.0), (60.0, 50.0), (50.0, 25.0), (0.0, 0.0))
pen.closePath()
class BasePenTest(unittest.TestCase):
def test_moveTo(self):
pen = _TestPen()
pen.moveTo((0.5, -4.3))
self.assertEqual("0.5 -4.3 moveto", repr(pen))
self.assertEqual((0.5, -4.3), pen.getCurrentPoint())
def test_lineTo(self):
pen = _TestPen()
pen.moveTo((4, 5))
pen.lineTo((7, 8))
self.assertEqual("4 5 moveto 7 8 lineto", repr(pen))
self.assertEqual((7, 8), pen.getCurrentPoint())
def test_curveTo_zeroPoints(self):
pen = _TestPen()
pen.moveTo((0.0, 0.0))
self.assertRaises(AssertionError, pen.curveTo)
def test_curveTo_onePoint(self):
pen = _TestPen()
pen.moveTo((0.0, 0.0))
pen.curveTo((1.0, 1.1))
self.assertEqual("0.0 0.0 moveto 1.0 1.1 lineto", repr(pen))
self.assertEqual((1.0, 1.1), pen.getCurrentPoint())
def test_curveTo_twoPoints(self):
pen = _TestPen()
pen.moveTo((0.0, 0.0))
pen.curveTo((6.0, 3.0), (3.0, 6.0))
self.assertEqual("0.0 0.0 moveto 4.0 2.0 5.0 4.0 3.0 6.0 curveto",
repr(pen))
self.assertEqual((3.0, 6.0), pen.getCurrentPoint())
def test_curveTo_manyPoints(self):
pen = _TestPen()
pen.moveTo((0.0, 0.0))
pen.curveTo((1.0, 1.1), (2.0, 2.1), (3.0, 3.1), (4.0, 4.1))
self.assertEqual("0.0 0.0 moveto "
"1.0 1.1 1.5 1.6 2.0 2.1 curveto "
"2.5 2.6 3.0 3.1 4.0 4.1 curveto", repr(pen))
self.assertEqual((4.0, 4.1), pen.getCurrentPoint())
def test_qCurveTo_zeroPoints(self):
pen = _TestPen()
pen.moveTo((0.0, 0.0))
self.assertRaises(AssertionError, pen.qCurveTo)
def test_qCurveTo_onePoint(self):
pen = _TestPen()
pen.moveTo((0.0, 0.0))
pen.qCurveTo((77.7, 99.9))
self.assertEqual("0.0 0.0 moveto 77.7 99.9 lineto", repr(pen))
self.assertEqual((77.7, 99.9), pen.getCurrentPoint())
def test_qCurveTo_manyPoints(self):
pen = _TestPen()
pen.moveTo((0.0, 0.0))
pen.qCurveTo((6.0, 3.0), (3.0, 6.0))
self.assertEqual("0.0 0.0 moveto 4.0 2.0 5.0 4.0 3.0 6.0 curveto",
repr(pen))
self.assertEqual((3.0, 6.0), pen.getCurrentPoint())
def test_qCurveTo_onlyOffCurvePoints(self):
pen = _TestPen()
pen.moveTo((0.0, 0.0))
pen.qCurveTo((6.0, -6.0), (12.0, 12.0), (18.0, -18.0), None)
self.assertEqual("0.0 0.0 moveto "
"12.0 -12.0 moveto "
"8.0 -8.0 7.0 -3.0 9.0 3.0 curveto "
"11.0 9.0 13.0 7.0 15.0 -3.0 curveto "
"17.0 -13.0 16.0 -16.0 12.0 -12.0 curveto", repr(pen))
self.assertEqual((12.0, -12.0), pen.getCurrentPoint())
def test_closePath(self):
pen = _TestPen()
pen.lineTo((3, 4))
pen.closePath()
self.assertEqual("3 4 lineto closepath", repr(pen))
self.assertEqual(None, pen.getCurrentPoint())
def test_endPath(self):
pen = _TestPen()
pen.lineTo((3, 4))
pen.endPath()
self.assertEqual("3 4 lineto endpath", repr(pen))
self.assertEqual(None, pen.getCurrentPoint())
def test_addComponent(self):
pen = _TestPen()
pen.glyphSet["oslash"] = _TestGlyph()
pen.addComponent("oslash", (2, 3, 0.5, 2, -10, 0))
self.assertEqual("-10.0 0.0 moveto "
"40.0 200.0 lineto "
"127.5 300.0 131.25 290.0 125.0 265.0 curveto "
"118.75 240.0 102.5 200.0 -10.0 0.0 curveto "
"closepath", repr(pen))
self.assertEqual(None, pen.getCurrentPoint())
def test_addComponent_skip_missing(self):
pen = _TestPen()
with CapturingLogHandler(pen.log, "WARNING") as captor:
pen.addComponent("nonexistent", (1, 0, 0, 1, 0, 0))
captor.assertRegex("glyph '.*' is missing from glyphSet; skipped")
class DecomposeSegmentTest(unittest.TestCase):
def test_decomposeSuperBezierSegment(self):
decompose = decomposeSuperBezierSegment
self.assertRaises(AssertionError, decompose, [])
self.assertRaises(AssertionError, decompose, [(0, 0)])
self.assertRaises(AssertionError, decompose, [(0, 0), (1, 1)])
self.assertEqual([((0, 0), (1, 1), (2, 2))],
decompose([(0, 0), (1, 1), (2, 2)]))
self.assertEqual(
[((0, 0), (2, -2), (4, 0)), ((6, 2), (8, 8), (12, -12))],
decompose([(0, 0), (4, -4), (8, 8), (12, -12)]))
def test_decomposeQuadraticSegment(self):
decompose = decomposeQuadraticSegment
self.assertRaises(AssertionError, decompose, [])
self.assertRaises(AssertionError, decompose, [(0, 0)])
self.assertEqual([((0,0), (4, 8))], decompose([(0, 0), (4, 8)]))
self.assertEqual([((0,0), (2, 4)), ((4, 8), (9, -9))],
decompose([(0, 0), (4, 8), (9, -9)]))
self.assertEqual(
[((0, 0), (2.0, 4.0)), ((4, 8), (6.5, -0.5)), ((9, -9), (10, 10))],
decompose([(0, 0), (4, 8), (9, -9), (10, 10)]))
if __name__ == '__main__':
import sys
sys.exit(unittest.main())
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