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59 lines
1.7 KiB
59 lines
1.7 KiB
import unittest
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try:
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from fontTools.pens.cocoaPen import CocoaPen
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from AppKit import NSBezierPathElementMoveTo, NSBezierPathElementLineTo
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from AppKit import NSBezierPathElementCurveTo, NSBezierPathElementClosePath
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PATH_ELEMENTS = {
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# NSBezierPathElement key desc
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NSBezierPathElementMoveTo: 'moveto',
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NSBezierPathElementLineTo: 'lineto',
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NSBezierPathElementCurveTo: 'curveto',
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NSBezierPathElementClosePath: 'close',
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}
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PYOBJC_AVAILABLE = True
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except ImportError:
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PYOBJC_AVAILABLE = False
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def draw(pen):
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pen.moveTo((50, 0))
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pen.lineTo((50, 500))
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pen.lineTo((200, 500))
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pen.curveTo((350, 500), (450, 400), (450, 250))
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pen.curveTo((450, 100), (350, 0), (200, 0))
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pen.closePath()
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def cocoaPathToString(path):
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num_elements = path.elementCount()
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output = []
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for i in range(num_elements - 1):
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elem_type, elem_points = path.elementAtIndex_associatedPoints_(i)
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elem_type = PATH_ELEMENTS[elem_type]
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path_points = " ".join([f"{p.x} {p.y}" for p in elem_points])
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output.append(f"{elem_type} {path_points}")
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return " ".join(output)
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@unittest.skipUnless(PYOBJC_AVAILABLE, "pyobjc not installed")
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class CocoaPenTest(unittest.TestCase):
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def test_draw(self):
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pen = CocoaPen(None)
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draw(pen)
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self.assertEqual(
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"moveto 50.0 0.0 lineto 50.0 500.0 lineto 200.0 500.0 curveto 350.0 500.0 450.0 400.0 450.0 250.0 curveto 450.0 100.0 350.0 0.0 200.0 0.0 close ",
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cocoaPathToString(pen.path)
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)
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def test_empty(self):
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pen = CocoaPen(None)
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self.assertEqual("", cocoaPathToString(pen.path))
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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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