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colorLib: allow color stops to be built from list of dicts as well as tuples

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This commit is contained in:
Cosimo Lupo 2020-03-12 16:03:11 +00:00
parent b7f9d8d564
commit 971bcbff6f
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GPG Key ID: 179A8F0895A02F4F
2 changed files with 35 additions and 40 deletions
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24
Lib/fontTools/colorLib/builder.py
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@ -25,9 +25,9 @@ _ColorGlyphsDict = Dict[str, _LayersList]
_ColorGlyphsV0Dict = Dict[str, Sequence[Tuple[str, int]]] _ColorGlyphsV0Dict = Dict[str, Sequence[Tuple[str, int]]]
_Number = Union[int, float] _Number = Union[int, float]
_ScalarInput = Union[_Number, VariableValue, Tuple[_Number, int]] _ScalarInput = Union[_Number, VariableValue, Tuple[_Number, int]]
_ColorInput = Union[int, _Kwargs, ot.Color] _ColorStopTuple = Tuple[_ScalarInput, int]
_ColorStopTuple = Tuple[_ScalarInput, _ColorInput] _ColorStopInput = Union[_ColorStopTuple, _Kwargs, ot.ColorStop]
_ColorStopsList = Sequence[Union[_ColorStopTuple, ot.ColorStop]] _ColorStopsList = Sequence[_ColorStopInput]
_ExtendInput = Union[int, str, ExtendMode] _ExtendInput = Union[int, str, ExtendMode]
_ColorLineInput = Union[_Kwargs, ot.ColorLine] _ColorLineInput = Union[_Kwargs, ot.ColorLine]
_PointTuple = Tuple[_ScalarInput, _ScalarInput] _PointTuple = Tuple[_ScalarInput, _ScalarInput]
@ -337,16 +337,14 @@ def buildSolidColorPaint(
return self return self
def buildColorStop(offset: _ScalarInput, color: _ColorInput) -> ot.ColorStop: def buildColorStop(
offset: _ScalarInput,
paletteIndex: int,
transparency: _ScalarInput = _DEFAULT_TRANSPARENCY,
) -> ot.ColorStop:
self = ot.ColorStop() self = ot.ColorStop()
self.StopOffset = _to_variable_float(offset) self.StopOffset = _to_variable_float(offset)
self.Color = buildColor(paletteIndex, transparency)
if isinstance(color, int):
color = buildColor(paletteIndex=color)
elif not isinstance(color, ot.Color):
color = buildColor(**color)
self.Color = color
return self return self
@ -370,7 +368,9 @@ def buildColorLine(
self.ColorStop = [ self.ColorStop = [
stop stop
if isinstance(stop, ot.ColorStop) if isinstance(stop, ot.ColorStop)
else buildColorStop(offset=stop[0], color=stop[1]) else buildColorStop(**stop)
if isinstance(stop, collections.abc.Mapping)
else buildColorStop(*stop)
for stop in stops for stop in stops
] ]
return self return self

45
Tests/colorLib/builder_test.py
View File

@ -228,20 +228,19 @@ def test_buildSolidColorPaint():
def test_buildColorStop(): def test_buildColorStop():
s = builder.buildColorStop(offset=0.1, color=2) s = builder.buildColorStop(0.1, 2)
assert s.StopOffset == builder.VariableFloat(0.1) assert s.StopOffset == builder.VariableFloat(0.1)
assert s.Color.PaletteIndex == 2 assert s.Color.PaletteIndex == 2
assert s.Color.Transparency == builder._DEFAULT_TRANSPARENCY assert s.Color.Transparency == builder._DEFAULT_TRANSPARENCY
c = builder.buildColor(3, transparency=0.4) s = builder.buildColorStop(offset=0.2, paletteIndex=3, transparency=0.4)
s = builder.buildColorStop(offset=0.2, color=c)
assert s.StopOffset == builder.VariableFloat(0.2) assert s.StopOffset == builder.VariableFloat(0.2)
assert s.Color.PaletteIndex == 3 assert s.Color == builder.buildColor(3, transparency=0.4)
assert s.Color.Transparency == builder.VariableFloat(0.4)
s = builder.buildColorStop( s = builder.buildColorStop(
offset=builder.VariableFloat(0.0, varIdx=1), offset=builder.VariableFloat(0.0, varIdx=1),
color=builder.buildColor(0, transparency=builder.VariableFloat(0.3, varIdx=2)), paletteIndex=0,
transparency=builder.VariableFloat(0.3, varIdx=2),
) )
assert s.StopOffset == builder.VariableFloat(0.0, varIdx=1) assert s.StopOffset == builder.VariableFloat(0.0, varIdx=1)
assert s.Color.PaletteIndex == 0 assert s.Color.PaletteIndex == 0
@ -267,26 +266,22 @@ def test_buildColorLine():
cline = builder.buildColorLine(stops, extend=builder.ExtendMode.REFLECT) cline = builder.buildColorLine(stops, extend=builder.ExtendMode.REFLECT)
assert cline.Extend == builder.ExtendMode.REFLECT assert cline.Extend == builder.ExtendMode.REFLECT
cline = builder.buildColorLine( cline = builder.buildColorLine([builder.buildColorStop(*s) for s in stops])
[builder.buildColorStop(offset=s[0], color=s[1]) for s in stops]
)
assert [ assert [
(cs.StopOffset.value, cs.Color.PaletteIndex) for cs in cline.ColorStop (cs.StopOffset.value, cs.Color.PaletteIndex) for cs in cline.ColorStop
] == stops ] == stops
stops = [ stops = [
((0.0, 1), {"paletteIndex": 0, "transparency": (0.5, 2)}), {"offset": (0.0, 1), "paletteIndex": 0, "transparency": (0.5, 2)},
((1.0, 3), {"paletteIndex": 1, "transparency": (0.3, 4)}), {"offset": (1.0, 3), "paletteIndex": 1, "transparency": (0.3, 4)},
] ]
cline = builder.buildColorLine(stops) cline = builder.buildColorLine(stops)
assert [ assert [
(
cs.StopOffset,
{ {
"offset": cs.StopOffset,
"paletteIndex": cs.Color.PaletteIndex, "paletteIndex": cs.Color.PaletteIndex,
"transparency": cs.Color.Transparency, "transparency": cs.Color.Transparency,
}, }
)
for cs in cline.ColorStop for cs in cline.ColorStop
] == stops ] == stops
@ -323,9 +318,9 @@ def test_buildAffine2x2():
def test_buildLinearGradientPaint(): def test_buildLinearGradientPaint():
color_stops = [ color_stops = [
builder.buildColorStop(0.0, builder.buildColor(0)), builder.buildColorStop(0.0, 0),
builder.buildColorStop(0.5, builder.buildColor(1)), builder.buildColorStop(0.5, 1),
builder.buildColorStop(1.0, builder.buildColor(2, transparency=0.8)), builder.buildColorStop(1.0, 2, transparency=0.8),
] ]
color_line = builder.buildColorLine(color_stops, extend=builder.ExtendMode.REPEAT) color_line = builder.buildColorLine(color_stops, extend=builder.ExtendMode.REPEAT)
p0 = builder.buildPoint(x=100, y=200) p0 = builder.buildPoint(x=100, y=200)
@ -350,9 +345,9 @@ def test_buildLinearGradientPaint():
def test_buildRadialGradientPaint(): def test_buildRadialGradientPaint():
color_stops = [ color_stops = [
builder.buildColorStop(0.0, builder.buildColor(0)), builder.buildColorStop(0.0, 0),
builder.buildColorStop(0.5, builder.buildColor(1)), builder.buildColorStop(0.5, 1),
builder.buildColorStop(1.0, builder.buildColor(2, transparency=0.8)), builder.buildColorStop(1.0, 2, transparency=0.8),
] ]
color_line = builder.buildColorLine(color_stops, extend=builder.ExtendMode.REPEAT) color_line = builder.buildColorLine(color_stops, extend=builder.ExtendMode.REPEAT)
c0 = builder.buildPoint(x=100, y=200) c0 = builder.buildPoint(x=100, y=200)
@ -418,7 +413,7 @@ def test_buildLayerV1Record():
{ {
"stops": [ "stops": [
(0.0, 5), (0.0, 5),
(0.5, {"paletteIndex": 6, "transparency": 0.8}), {"offset": 0.5, "paletteIndex": 6, "transparency": 0.8},
(1.0, 7), (1.0, 7),
] ]
}, },
@ -496,9 +491,9 @@ def test_buildLayerV1Array():
"format": 3, "format": 3,
"colorLine": { "colorLine": {
"stops": [ "stops": [
(0.0, 5), {"offset": 0.0, "paletteIndex": 5},
(0.5, {"paletteIndex": 6, "transparency": 0.8}), {"offset": 0.5, "paletteIndex": 6, "transparency": 0.8},
(1.0, 7), {"offset": 1.0, "paletteIndex": 7},
] ]
}, },
"c0": (50, 50), "c0": (50, 50),