from __future__ import print_function, division, absolute_import from fontTools.misc.py23 import * import os import unittest import struct from fontTools import ttLib from fontTools.misc.testTools import TestCase from fontTools.pens.ttGlyphPen import TTGlyphPen, MAX_F2DOT14 class TTGlyphPenTest(TestCase): def runEndToEnd(self, filename): font = ttLib.TTFont() ttx_path = os.path.join( os.path.abspath(os.path.dirname(os.path.realpath(__file__))), '..', 'ttLib', 'data', filename) font.importXML(ttx_path) glyphSet = font.getGlyphSet() glyfTable = font['glyf'] pen = TTGlyphPen(font.getGlyphSet()) for name in font.getGlyphOrder(): oldGlyph = glyphSet[name] oldGlyph.draw(pen) oldGlyph = oldGlyph._glyph newGlyph = pen.glyph() if hasattr(oldGlyph, 'program'): newGlyph.program = oldGlyph.program self.assertEqual( oldGlyph.compile(glyfTable), newGlyph.compile(glyfTable)) def test_e2e_linesAndSimpleComponents(self): self.runEndToEnd('TestTTF-Regular.ttx') def test_e2e_curvesAndComponentTransforms(self): self.runEndToEnd('TestTTFComplex-Regular.ttx') def test_moveTo_errorWithinContour(self): pen = TTGlyphPen(None) pen.moveTo((0, 0)) with self.assertRaises(AssertionError): pen.moveTo((1, 0)) def test_closePath_ignoresAnchors(self): pen = TTGlyphPen(None) pen.moveTo((0, 0)) pen.closePath() self.assertFalse(pen.points) self.assertFalse(pen.types) self.assertFalse(pen.endPts) def test_endPath_sameAsClosePath(self): pen = TTGlyphPen(None) pen.moveTo((0, 0)) pen.lineTo((0, 1)) pen.lineTo((1, 0)) pen.closePath() closePathGlyph = pen.glyph() pen.moveTo((0, 0)) pen.lineTo((0, 1)) pen.lineTo((1, 0)) pen.endPath() endPathGlyph = pen.glyph() self.assertEqual(closePathGlyph, endPathGlyph) def test_glyph_errorOnUnendedContour(self): pen = TTGlyphPen(None) pen.moveTo((0, 0)) with self.assertRaises(AssertionError): pen.glyph() def test_glyph_decomposes(self): componentName = 'a' glyphSet = {} pen = TTGlyphPen(glyphSet) pen.moveTo((0, 0)) pen.lineTo((0, 1)) pen.lineTo((1, 0)) pen.closePath() glyphSet[componentName] = _TestGlyph(pen.glyph()) pen.moveTo((0, 0)) pen.lineTo((0, 1)) pen.lineTo((1, 0)) pen.closePath() pen.addComponent(componentName, (1, 0, 0, 1, 2, 0)) pen.addComponent("missing", (1, 0, 0, 1, 0, 0)) # skipped compositeGlyph = pen.glyph() pen.moveTo((0, 0)) pen.lineTo((0, 1)) pen.lineTo((1, 0)) pen.closePath() pen.moveTo((2, 0)) pen.lineTo((2, 1)) pen.lineTo((3, 0)) pen.closePath() plainGlyph = pen.glyph() self.assertEqual(plainGlyph, compositeGlyph) def test_remove_extra_move_points(self): pen = TTGlyphPen(None) pen.moveTo((0, 0)) pen.lineTo((100, 0)) pen.qCurveTo((100, 50), (50, 100), (0, 0)) pen.closePath() self.assertEqual(len(pen.points), 4) self.assertEqual(pen.points[0], (0, 0)) def test_keep_move_point(self): pen = TTGlyphPen(None) pen.moveTo((0, 0)) pen.lineTo((100, 0)) pen.qCurveTo((100, 50), (50, 100), (30, 30)) # when last and move pts are different, closePath() implies a lineTo pen.closePath() self.assertEqual(len(pen.points), 5) self.assertEqual(pen.points[0], (0, 0)) def test_keep_duplicate_end_point(self): pen = TTGlyphPen(None) pen.moveTo((0, 0)) pen.lineTo((100, 0)) pen.qCurveTo((100, 50), (50, 100), (0, 0)) pen.lineTo((0, 0)) # the duplicate point is not removed pen.closePath() self.assertEqual(len(pen.points), 5) self.assertEqual(pen.points[0], (0, 0)) def test_within_range_component_transform(self): componentName = 'a' glyphSet = {} pen = TTGlyphPen(glyphSet) pen.moveTo((0, 0)) pen.lineTo((0, 1)) pen.lineTo((1, 0)) pen.closePath() glyphSet[componentName] = _TestGlyph(pen.glyph()) pen.addComponent(componentName, (1.5, 0, 0, 1, 0, 0)) pen.addComponent(componentName, (1, 0, 0, -1.5, 0, 0)) compositeGlyph = pen.glyph() pen.addComponent(componentName, (1.5, 0, 0, 1, 0, 0)) pen.addComponent(componentName, (1, 0, 0, -1.5, 0, 0)) expectedGlyph = pen.glyph() self.assertEqual(expectedGlyph, compositeGlyph) def test_clamp_to_almost_2_component_transform(self): componentName = 'a' glyphSet = {} pen = TTGlyphPen(glyphSet) pen.moveTo((0, 0)) pen.lineTo((0, 1)) pen.lineTo((1, 0)) pen.closePath() glyphSet[componentName] = _TestGlyph(pen.glyph()) pen.addComponent(componentName, (1.99999, 0, 0, 1, 0, 0)) pen.addComponent(componentName, (1, 2, 0, 1, 0, 0)) pen.addComponent(componentName, (1, 0, 2, 1, 0, 0)) pen.addComponent(componentName, (1, 0, 0, 2, 0, 0)) pen.addComponent(componentName, (-2, 0, 0, -2, 0, 0)) compositeGlyph = pen.glyph() almost2 = MAX_F2DOT14 # 0b1.11111111111111 pen.addComponent(componentName, (almost2, 0, 0, 1, 0, 0)) pen.addComponent(componentName, (1, almost2, 0, 1, 0, 0)) pen.addComponent(componentName, (1, 0, almost2, 1, 0, 0)) pen.addComponent(componentName, (1, 0, 0, almost2, 0, 0)) pen.addComponent(componentName, (-2, 0, 0, -2, 0, 0)) expectedGlyph = pen.glyph() self.assertEqual(expectedGlyph, compositeGlyph) def test_out_of_range_transform_decomposed(self): componentName = 'a' glyphSet = {} pen = TTGlyphPen(glyphSet) pen.moveTo((0, 0)) pen.lineTo((0, 1)) pen.lineTo((1, 0)) pen.closePath() glyphSet[componentName] = _TestGlyph(pen.glyph()) pen.addComponent(componentName, (3, 0, 0, 2, 0, 0)) pen.addComponent(componentName, (1, 0, 0, 1, -1, 2)) pen.addComponent(componentName, (2, 0, 0, -3, 0, 0)) compositeGlyph = pen.glyph() pen.moveTo((0, 0)) pen.lineTo((0, 2)) pen.lineTo((3, 0)) pen.closePath() pen.moveTo((-1, 2)) pen.lineTo((-1, 3)) pen.lineTo((0, 2)) pen.closePath() pen.moveTo((0, 0)) pen.lineTo((0, -3)) pen.lineTo((2, 0)) pen.closePath() expectedGlyph = pen.glyph() self.assertEqual(expectedGlyph, compositeGlyph) def test_no_handle_overflowing_transform(self): componentName = 'a' glyphSet = {} pen = TTGlyphPen(glyphSet, handleOverflowingTransforms=False) pen.moveTo((0, 0)) pen.lineTo((0, 1)) pen.lineTo((1, 0)) pen.closePath() baseGlyph = pen.glyph() glyphSet[componentName] = _TestGlyph(baseGlyph) pen.addComponent(componentName, (3, 0, 0, 1, 0, 0)) compositeGlyph = pen.glyph() self.assertEqual(compositeGlyph.components[0].transform, ((3, 0), (0, 1))) with self.assertRaises(struct.error): compositeGlyph.compile({'a': baseGlyph}) class _TestGlyph(object): def __init__(self, glyph): self.coordinates = glyph.coordinates def draw(self, pen): pen.moveTo(self.coordinates[0]) for point in self.coordinates[1:]: pen.lineTo(point) pen.closePath() if __name__ == '__main__': import sys sys.exit(unittest.main())