def test_scaled_component_bounds(self):
glyphSet = {}
pen = TTGlyphPointPen(glyphSet)
pen.beginPath()
pen.addPoint((-231, 939), "line")
pen.addPoint((-55, 939), "line")
pen.addPoint((-55, 745), "line")
pen.addPoint((-231, 745), "line")
pen.endPath()
glyphSet["gravecomb"] = pen.glyph()
pen = TTGlyphPointPen(glyphSet)
pen.beginPath()
pen.addPoint((-278, 939), "line")
pen.addPoint((8, 939), "line")
pen.addPoint((8, 745), "line")
pen.addPoint((-278, 745), "line")
pen.endPath()
glyphSet["circumflexcomb"] = pen.glyph()
pen = TTGlyphPointPen(glyphSet)
pen.addComponent("circumflexcomb", (1, 0, 0, 1, 0, 0))
pen.addComponent("gravecomb", (0.9, 0, 0, 0.9, 198, 180))
glyphSet["uni0302_uni0300"] = uni0302_uni0300 = pen.glyph()
uni0302_uni0300.recalcBounds(glyphSet)
self.assertGlyphBoundsEqual(uni0302_uni0300, (-278, 745, 148, 1025))
def test_open_path_starting_with_move(self):
# when a contour starts with a 'move' point, it signifies the beginnig
# of an open contour.
# https://unifiedfontobject.org/versions/ufo3/glyphs/glif/#point-types
pen1 = TTGlyphPointPen(None)
pen1.beginPath()
pen1.addPoint((0, 0), "move") # contour is open
pen1.addPoint((10, 10), "line")
pen1.addPoint((20, 20))
pen1.addPoint((20, 0), "qcurve")
pen1.endPath()
pen2 = TTGlyphPointPen(None)
pen2.beginPath()
pen2.addPoint((0, 0), "line") # contour is closed
pen2.addPoint((10, 10), "line")
pen2.addPoint((20, 20))
pen2.addPoint((20, 0), "qcurve")
pen2.endPath()
# Since TrueType contours are always implicitly closed, the pen will
# interpret both these paths as equivalent
assert pen1.points == pen2.points == [(0, 0), (10, 10), (20, 20),
(20, 0)]
assert pen1.types == pen2.types == [1, 1, 0, 1]
def test_clamp_to_almost_2_component_transform(self):
componentName = "a"
glyphSet = {}
pen = TTGlyphPointPen(glyphSet)
pen.beginPath()
pen.addPoint((0, 0), "line")
pen.addPoint((0, 1), "line")
pen.addPoint((1, 0), "line")
pen.endPath()
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()
assert expectedGlyph == compositeGlyph
def test_glyph_simple(self):
pen = TTGlyphPointPen(None)
pen.beginPath()
pen.addPoint((50, 0), "line")
pen.addPoint((450, 0), "line")
pen.addPoint((450, 700), "line")
pen.addPoint((50, 700), "line")
pen.endPath()
glyph = pen.glyph()
assert glyph.numberOfContours == 1
assert glyph.endPtsOfContours == [3]
def test_keep_duplicate_end_point(self):
pen = TTGlyphPointPen(None)
pen.beginPath()
pen.addPoint((0, 0), "line")
pen.addPoint((100, 0), "line")
pen.addPoint((100, 50))
pen.addPoint((50, 100))
pen.addPoint((0, 0), "qcurve")
pen.addPoint((0, 0), "line") # the duplicate point is not removed
pen.endPath()
assert len(pen.points) == 6
assert pen.points[0] == (0, 0)
def test_out_of_range_transform_decomposed(self):
componentName = "a"
glyphSet = {}
pen = TTGlyphPointPen(glyphSet)
pen.beginPath()
pen.addPoint((0, 0), "line")
pen.addPoint((0, 1), "line")
pen.addPoint((1, 0), "line")
pen.endPath()
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.beginPath()
pen.addPoint((0, 0), "line")
pen.addPoint((0, 2), "line")
pen.addPoint((3, 0), "line")
pen.endPath()
pen.beginPath()
pen.addPoint((-1, 2), "line")
pen.addPoint((-1, 3), "line")
pen.addPoint((0, 2), "line")
pen.endPath()
pen.beginPath()
pen.addPoint((0, 0), "line")
pen.addPoint((0, -3), "line")
pen.addPoint((2, 0), "line")
pen.endPath()
expectedGlyph = pen.glyph()
assert expectedGlyph == compositeGlyph
def test_glyph_decomposes(self):
componentName = "a"
glyphSet = {}
pen = TTGlyphPointPen(glyphSet)
pen.beginPath()
pen.addPoint((0, 0), "line")
pen.addPoint((0, 1), "line")
pen.addPoint((1, 0), "line")
pen.endPath()
glyphSet[componentName] = _TestGlyph(pen.glyph())
pen.beginPath()
pen.addPoint((0, 0), "line")
pen.addPoint((0, 1), "line")
pen.addPoint((1, 0), "line")
pen.endPath()
pen.addComponent(componentName, (1, 0, 0, 1, 2, 0))
pen.addComponent("missing", (1, 0, 0, 1, 0, 0)) # skipped
compositeGlyph = pen.glyph()
pen.beginPath()
pen.addPoint((0, 0), "line")
pen.addPoint((0, 1), "line")
pen.addPoint((1, 0), "line")
pen.endPath()
pen.beginPath()
pen.addPoint((2, 0), "line")
pen.addPoint((2, 1), "line")
pen.addPoint((3, 0), "line")
pen.endPath()
plainGlyph = pen.glyph()
assert plainGlyph == compositeGlyph
def estimateCOLRv1BoundingBoxes(vcFont, ttFont, neutralOnly):
from fontTools.pens.ttGlyphPen import TTGlyphPointPen
from fontTools.pens.boundsPen import ControlBoundsPen
locations = [{}]
if not neutralOnly:
for axis in ttFont["fvar"].axes:
if axis.flags & 0x0001:
# hidden axis
continue
values = {0}
if axis.minValue < axis.defaultValue:
values.add(-1)
if axis.defaultValue < axis.maxValue:
values.add(1)
locations = [
dictUpdate(loc, axis.axisTag, v) for loc in locations
for v in sorted(values)
]
glyfTable = ttFont["glyf"]
gvarTable = ttFont["gvar"]
hmtxTable = ttFont["hmtx"]
# TODO: fix tsb if we have "vmtx"
for glyphName in sorted(vcFont.keys()):
glyph = vcFont[glyphName]
if not glyph.components or not glyph.outline.isEmpty():
continue
# calculate the bounding box that would fit on all locations
bpen = ControlBoundsPen(None)
for loc in locations:
vcFont.drawGlyph(bpen, glyphName, loc)
gvarTable.variations.pop(glyphName, None)
pen = TTGlyphPointPen(None)
if bpen.bounds is not None:
bounds = intRect(bpen.bounds)
for pt in [bounds[:2], bounds[2:]]:
pen.beginPath()
pen.addPoint(pt, segmentType="line")
pen.endPath()
glyfTable[glyphName] = pen.glyph()
adv, lsb = hmtxTable.metrics[glyphName]
hmtxTable.metrics[glyphName] = adv, bounds[0]
def test_no_handle_overflowing_transform(self):
componentName = "a"
glyphSet = {}
pen = TTGlyphPointPen(glyphSet, handleOverflowingTransforms=False)
pen.beginPath()
pen.addPoint((0, 0), "line")
pen.addPoint((0, 1), "line")
pen.addPoint((1, 0), "line")
pen.endPath()
baseGlyph = pen.glyph()
glyphSet[componentName] = _TestGlyph(baseGlyph)
pen.addComponent(componentName, (3, 0, 0, 1, 0, 0))
compositeGlyph = pen.glyph()
assert compositeGlyph.components[0].transform == ((3, 0), (0, 1))
with pytest.raises(struct.error):
compositeGlyph.compile({"a": baseGlyph})
def test_within_range_component_transform(self):
componentName = "a"
glyphSet = {}
pen = TTGlyphPointPen(glyphSet)
pen.beginPath()
pen.addPoint((0, 0), "line")
pen.addPoint((0, 1), "line")
pen.addPoint((1, 0), "line")
pen.endPath()
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()
assert expectedGlyph == compositeGlyph
def test_round_float_coordinates_and_component_offsets(self):
glyphSet = {}
pen = TTGlyphPointPen(glyphSet)
pen.beginPath()
pen.addPoint((0, 0), "line")
pen.addPoint((0, 1), "line")
pen.addPoint((367.6, 0), "line")
pen.endPath()
simpleGlyph = pen.glyph()
simpleGlyph.recalcBounds(glyphSet)
self.assertGlyphBoundsEqual(simpleGlyph, (0, 0, 368, 1))
componentName = "a"
glyphSet[componentName] = simpleGlyph
pen.addComponent(componentName, (1, 0, 0, 1, -86.4, 0))
compositeGlyph = pen.glyph()
compositeGlyph.recalcBounds(glyphSet)
self.assertGlyphBoundsEqual(compositeGlyph, (-86, 0, 282, 1))
def test_glyph_errorOnEmptyContour(self):
pen = TTGlyphPointPen(None)
pen.beginPath()
with pytest.raises(PenError):
pen.endPath()
def test_glyph_errorOnUnendedContour(self):
pen = TTGlyphPointPen(None)
pen.beginPath()
pen.addPoint((0, 0))
with pytest.raises(PenError):
pen.glyph()
def test_beginPath_beginPathOnOpenPath(self):
pen = TTGlyphPointPen(None)
pen.beginPath()
pen.addPoint((0, 0))
with pytest.raises(PenError):
pen.beginPath()
def test_addPoint_errorOnCurve(self):
pen = TTGlyphPointPen(None)
pen.beginPath()
with pytest.raises(NotImplementedError):
pen.addPoint((0, 0), "curve")