from fontTools.ttLib import newTable from fontTools.ttLib.tables import otTables as ot from fontTools.colorLib import builder from fontTools.colorLib.geometry import round_start_circle_stable_containment, Circle from fontTools.colorLib.builder import LayerV1ListBuilder, _build_n_ary_tree from fontTools.colorLib.errors import ColorLibError import pytest from typing import List def test_buildCOLR_v0(): color_layer_lists = { "a": [("a.color0", 0), ("a.color1", 1)], "b": [("b.color1", 1), ("b.color0", 0)], } colr = builder.buildCOLR(color_layer_lists) assert colr.tableTag == "COLR" assert colr.version == 0 assert colr.ColorLayers["a"][0].name == "a.color0" assert colr.ColorLayers["a"][0].colorID == 0 assert colr.ColorLayers["a"][1].name == "a.color1" assert colr.ColorLayers["a"][1].colorID == 1 assert colr.ColorLayers["b"][0].name == "b.color1" assert colr.ColorLayers["b"][0].colorID == 1 assert colr.ColorLayers["b"][1].name == "b.color0" assert colr.ColorLayers["b"][1].colorID == 0 def test_buildCOLR_v0_layer_as_list(): # when COLRv0 layers are encoded as plist in UFO lib, both python tuples and # lists are encoded as plist array elements; but the latter are always decoded # as python lists, thus after roundtripping a plist tuples become lists. # Before FontTools 4.17.0 we were treating tuples and lists as equivalent; # with 4.17.0, a paint of type list is used to identify a PaintColrLayers. # This broke backward compatibility as ufo2ft is simply passing through the # color layers as read from the UFO lib plist, and as such the latter use lists # instead of tuples for COLRv0 layers (layerGlyph, paletteIndex) combo. # We restore backward compat by accepting either tuples or lists (of length 2 # and only containing a str and an int) as individual top-level layers. # https://github.com/googlefonts/ufo2ft/issues/426 color_layer_lists = { "a": [["a.color0", 0], ["a.color1", 1]], "b": [["b.color1", 1], ["b.color0", 0]], } colr = builder.buildCOLR(color_layer_lists) assert colr.tableTag == "COLR" assert colr.version == 0 assert colr.ColorLayers["a"][0].name == "a.color0" assert colr.ColorLayers["a"][0].colorID == 0 assert colr.ColorLayers["a"][1].name == "a.color1" assert colr.ColorLayers["a"][1].colorID == 1 assert colr.ColorLayers["b"][0].name == "b.color1" assert colr.ColorLayers["b"][0].colorID == 1 assert colr.ColorLayers["b"][1].name == "b.color0" assert colr.ColorLayers["b"][1].colorID == 0 def test_buildCPAL_v0(): palettes = [ [(0.68, 0.20, 0.32, 1.0), (0.45, 0.68, 0.21, 1.0)], [(0.68, 0.20, 0.32, 0.6), (0.45, 0.68, 0.21, 0.6)], [(0.68, 0.20, 0.32, 0.3), (0.45, 0.68, 0.21, 0.3)], ] cpal = builder.buildCPAL(palettes) assert cpal.tableTag == "CPAL" assert cpal.version == 0 assert cpal.numPaletteEntries == 2 assert len(cpal.palettes) == 3 assert [tuple(c) for c in cpal.palettes[0]] == [ (82, 51, 173, 255), (54, 173, 115, 255), ] assert [tuple(c) for c in cpal.palettes[1]] == [ (82, 51, 173, 153), (54, 173, 115, 153), ] assert [tuple(c) for c in cpal.palettes[2]] == [ (82, 51, 173, 76), (54, 173, 115, 76), ] def test_buildCPAL_palettes_different_lengths(): with pytest.raises(ColorLibError, match="have different lengths"): builder.buildCPAL([[(1, 1, 1, 1)], [(0, 0, 0, 1), (0.5, 0.5, 0.5, 1)]]) def test_buildPaletteLabels(): name_table = newTable("name") name_table.names = [] name_ids = builder.buildPaletteLabels( [None, "hi", {"en": "hello", "de": "hallo"}], name_table ) assert name_ids == [0xFFFF, 256, 257] assert len(name_table.names) == 3 assert str(name_table.names[0]) == "hi" assert name_table.names[0].nameID == 256 assert str(name_table.names[1]) == "hallo" assert name_table.names[1].nameID == 257 assert str(name_table.names[2]) == "hello" assert name_table.names[2].nameID == 257 def test_build_CPAL_v1_types_no_labels(): palettes = [ [(0.1, 0.2, 0.3, 1.0), (0.4, 0.5, 0.6, 1.0)], [(0.1, 0.2, 0.3, 0.6), (0.4, 0.5, 0.6, 0.6)], [(0.1, 0.2, 0.3, 0.3), (0.4, 0.5, 0.6, 0.3)], ] paletteTypes = [ builder.ColorPaletteType.USABLE_WITH_LIGHT_BACKGROUND, builder.ColorPaletteType.USABLE_WITH_DARK_BACKGROUND, builder.ColorPaletteType.USABLE_WITH_LIGHT_BACKGROUND | builder.ColorPaletteType.USABLE_WITH_DARK_BACKGROUND, ] cpal = builder.buildCPAL(palettes, paletteTypes=paletteTypes) assert cpal.tableTag == "CPAL" assert cpal.version == 1 assert cpal.numPaletteEntries == 2 assert len(cpal.palettes) == 3 assert cpal.paletteTypes == paletteTypes assert cpal.paletteLabels == [cpal.NO_NAME_ID] * len(palettes) assert cpal.paletteEntryLabels == [cpal.NO_NAME_ID] * cpal.numPaletteEntries def test_build_CPAL_v1_labels(): palettes = [ [(0.1, 0.2, 0.3, 1.0), (0.4, 0.5, 0.6, 1.0)], [(0.1, 0.2, 0.3, 0.6), (0.4, 0.5, 0.6, 0.6)], [(0.1, 0.2, 0.3, 0.3), (0.4, 0.5, 0.6, 0.3)], ] paletteLabels = ["First", {"en": "Second", "it": "Seconda"}, None] paletteEntryLabels = ["Foo", "Bar"] with pytest.raises(TypeError, match="nameTable is required"): builder.buildCPAL(palettes, paletteLabels=paletteLabels) with pytest.raises(TypeError, match="nameTable is required"): builder.buildCPAL(palettes, paletteEntryLabels=paletteEntryLabels) name_table = newTable("name") name_table.names = [] cpal = builder.buildCPAL( palettes, paletteLabels=paletteLabels, paletteEntryLabels=paletteEntryLabels, nameTable=name_table, ) assert cpal.tableTag == "CPAL" assert cpal.version == 1 assert cpal.numPaletteEntries == 2 assert len(cpal.palettes) == 3 assert cpal.paletteTypes == [cpal.DEFAULT_PALETTE_TYPE] * len(palettes) assert cpal.paletteLabels == [256, 257, cpal.NO_NAME_ID] assert cpal.paletteEntryLabels == [258, 259] assert name_table.getDebugName(256) == "First" assert name_table.getDebugName(257) == "Second" assert name_table.getDebugName(258) == "Foo" assert name_table.getDebugName(259) == "Bar" def test_invalid_ColorPaletteType(): with pytest.raises(ValueError, match="not a valid ColorPaletteType"): builder.ColorPaletteType(-1) with pytest.raises(ValueError, match="not a valid ColorPaletteType"): builder.ColorPaletteType(4) with pytest.raises(ValueError, match="not a valid ColorPaletteType"): builder.ColorPaletteType("abc") def test_buildCPAL_v1_invalid_args_length(): with pytest.raises(ColorLibError, match="Expected 2 paletteTypes, got 1"): builder.buildCPAL([[(0, 0, 0, 0)], [(1, 1, 1, 1)]], paletteTypes=[1]) with pytest.raises(ColorLibError, match="Expected 2 paletteLabels, got 1"): builder.buildCPAL( [[(0, 0, 0, 0)], [(1, 1, 1, 1)]], paletteLabels=["foo"], nameTable=newTable("name"), ) with pytest.raises(ColorLibError, match="Expected 1 paletteEntryLabels, got 0"): cpal = builder.buildCPAL( [[(0, 0, 0, 0)], [(1, 1, 1, 1)]], paletteEntryLabels=[], nameTable=newTable("name"), ) def test_buildCPAL_invalid_color(): with pytest.raises( ColorLibError, match=r"In palette\[0\]\[1\]: expected \(R, G, B, A\) tuple, got \(1, 1, 1\)", ): builder.buildCPAL([[(1, 1, 1, 1), (1, 1, 1)]]) with pytest.raises( ColorLibError, match=( r"palette\[1\]\[0\] has invalid out-of-range " r"\[0..1\] color: \(1, 1, -1, 2\)" ), ): builder.buildCPAL([[(0, 0, 0, 0)], [(1, 1, -1, 2)]]) def test_buildColorIndex(): c = builder.buildColorIndex(0) assert c.PaletteIndex == 0 assert c.Alpha.value == 1.0 assert c.Alpha.varIdx == 0 c = builder.buildColorIndex(1, alpha=0.5) assert c.PaletteIndex == 1 assert c.Alpha.value == 0.5 assert c.Alpha.varIdx == 0 c = builder.buildColorIndex(3, alpha=builder.VariableFloat(0.5, varIdx=2)) assert c.PaletteIndex == 3 assert c.Alpha.value == 0.5 assert c.Alpha.varIdx == 2 def test_buildPaintSolid(): p = LayerV1ListBuilder().buildPaintSolid(0) assert p.Format == ot.Paint.Format.PaintSolid assert p.Color.PaletteIndex == 0 assert p.Color.Alpha.value == 1.0 assert p.Color.Alpha.varIdx == 0 p = LayerV1ListBuilder().buildPaintSolid(1, alpha=0.5) assert p.Format == ot.Paint.Format.PaintSolid assert p.Color.PaletteIndex == 1 assert p.Color.Alpha.value == 0.5 assert p.Color.Alpha.varIdx == 0 p = LayerV1ListBuilder().buildPaintSolid( 3, alpha=builder.VariableFloat(0.5, varIdx=2) ) assert p.Format == ot.Paint.Format.PaintSolid assert p.Color.PaletteIndex == 3 assert p.Color.Alpha.value == 0.5 assert p.Color.Alpha.varIdx == 2 def test_buildColorStop(): s = builder.buildColorStop(0.1, 2) assert s.StopOffset == builder.VariableFloat(0.1) assert s.Color.PaletteIndex == 2 assert s.Color.Alpha == builder._DEFAULT_ALPHA s = builder.buildColorStop(offset=0.2, paletteIndex=3, alpha=0.4) assert s.StopOffset == builder.VariableFloat(0.2) assert s.Color == builder.buildColorIndex(3, alpha=0.4) s = builder.buildColorStop( offset=builder.VariableFloat(0.0, varIdx=1), paletteIndex=0, alpha=builder.VariableFloat(0.3, varIdx=2), ) assert s.StopOffset == builder.VariableFloat(0.0, varIdx=1) assert s.Color.PaletteIndex == 0 assert s.Color.Alpha == builder.VariableFloat(0.3, varIdx=2) def test_buildColorLine(): stops = [(0.0, 0), (0.5, 1), (1.0, 2)] cline = builder.buildColorLine(stops) assert cline.Extend == builder.ExtendMode.PAD assert cline.StopCount == 3 assert [ (cs.StopOffset.value, cs.Color.PaletteIndex) for cs in cline.ColorStop ] == stops cline = builder.buildColorLine(stops, extend="pad") assert cline.Extend == builder.ExtendMode.PAD cline = builder.buildColorLine(stops, extend=builder.ExtendMode.REPEAT) assert cline.Extend == builder.ExtendMode.REPEAT cline = builder.buildColorLine(stops, extend=builder.ExtendMode.REFLECT) assert cline.Extend == builder.ExtendMode.REFLECT cline = builder.buildColorLine([builder.buildColorStop(*s) for s in stops]) assert [ (cs.StopOffset.value, cs.Color.PaletteIndex) for cs in cline.ColorStop ] == stops stops = [ {"offset": (0.0, 1), "paletteIndex": 0, "alpha": (0.5, 2)}, {"offset": (1.0, 3), "paletteIndex": 1, "alpha": (0.3, 4)}, ] cline = builder.buildColorLine(stops) assert [ { "offset": cs.StopOffset, "paletteIndex": cs.Color.PaletteIndex, "alpha": cs.Color.Alpha, } for cs in cline.ColorStop ] == stops def test_buildAffine2x3(): matrix = builder.buildAffine2x3((1.5, 0, 0.5, 2.0, 1.0, -3.0)) assert matrix.xx == builder.VariableFloat(1.5) assert matrix.yx == builder.VariableFloat(0.0) assert matrix.xy == builder.VariableFloat(0.5) assert matrix.yy == builder.VariableFloat(2.0) assert matrix.dx == builder.VariableFloat(1.0) assert matrix.dy == builder.VariableFloat(-3.0) def test_buildPaintLinearGradient(): layerBuilder = LayerV1ListBuilder() color_stops = [ builder.buildColorStop(0.0, 0), builder.buildColorStop(0.5, 1), builder.buildColorStop(1.0, 2, alpha=0.8), ] color_line = builder.buildColorLine(color_stops, extend=builder.ExtendMode.REPEAT) p0 = (builder.VariableInt(100), builder.VariableInt(200)) p1 = (builder.VariableInt(150), builder.VariableInt(250)) gradient = layerBuilder.buildPaintLinearGradient(color_line, p0, p1) assert gradient.Format == 3 assert gradient.ColorLine == color_line assert (gradient.x0, gradient.y0) == p0 assert (gradient.x1, gradient.y1) == p1 assert (gradient.x2, gradient.y2) == p1 gradient = layerBuilder.buildPaintLinearGradient({"stops": color_stops}, p0, p1) assert gradient.ColorLine.Extend == builder.ExtendMode.PAD assert gradient.ColorLine.ColorStop == color_stops gradient = layerBuilder.buildPaintLinearGradient(color_line, p0, p1, p2=(150, 230)) assert (gradient.x2.value, gradient.y2.value) == (150, 230) assert (gradient.x2, gradient.y2) != (gradient.x1, gradient.y1) def test_buildPaintRadialGradient(): layerBuilder = LayerV1ListBuilder() color_stops = [ builder.buildColorStop(0.0, 0), builder.buildColorStop(0.5, 1), builder.buildColorStop(1.0, 2, alpha=0.8), ] color_line = builder.buildColorLine(color_stops, extend=builder.ExtendMode.REPEAT) c0 = (builder.VariableInt(100), builder.VariableInt(200)) c1 = (builder.VariableInt(150), builder.VariableInt(250)) r0 = builder.VariableInt(10) r1 = builder.VariableInt(5) gradient = layerBuilder.buildPaintRadialGradient(color_line, c0, c1, r0, r1) assert gradient.Format == ot.Paint.Format.PaintRadialGradient assert gradient.ColorLine == color_line assert (gradient.x0, gradient.y0) == c0 assert (gradient.x1, gradient.y1) == c1 assert gradient.r0 == r0 assert gradient.r1 == r1 gradient = layerBuilder.buildPaintRadialGradient( {"stops": color_stops}, c0, c1, r0, r1 ) assert gradient.ColorLine.Extend == builder.ExtendMode.PAD assert gradient.ColorLine.ColorStop == color_stops def test_buildPaintSweepGradient(): layerBuilder = LayerV1ListBuilder() paint = layerBuilder.buildPaintSweepGradient( colorLine=builder.buildColorLine( stops=[ builder.buildColorStop(0.0, 0), builder.buildColorStop(0.5, 1), builder.buildColorStop(1.0, 2, alpha=0.8), ], ), centerX=127, centerY=129, startAngle=15, endAngle=42, ) assert paint.Format == ot.Paint.Format.PaintSweepGradient assert paint.centerX.value == 127 assert paint.centerY.value == 129 assert paint.startAngle.value == 15 assert paint.endAngle.value == 42 def test_buildPaintGlyph_Solid(): layerBuilder = LayerV1ListBuilder() layer = layerBuilder.buildPaintGlyph("a", 2) assert layer.Glyph == "a" assert layer.Paint.Format == ot.Paint.Format.PaintSolid assert layer.Paint.Color.PaletteIndex == 2 layer = layerBuilder.buildPaintGlyph("a", layerBuilder.buildPaintSolid(3, 0.9)) assert layer.Paint.Format == ot.Paint.Format.PaintSolid assert layer.Paint.Color.PaletteIndex == 3 assert layer.Paint.Color.Alpha.value == 0.9 def test_buildPaintGlyph_LinearGradient(): layerBuilder = LayerV1ListBuilder() layer = layerBuilder.buildPaintGlyph( "a", layerBuilder.buildPaintLinearGradient( {"stops": [(0.0, 3), (1.0, 4)]}, (100, 200), (150, 250) ), ) assert layer.Paint.Format == ot.Paint.Format.PaintLinearGradient assert layer.Paint.ColorLine.ColorStop[0].StopOffset.value == 0.0 assert layer.Paint.ColorLine.ColorStop[0].Color.PaletteIndex == 3 assert layer.Paint.ColorLine.ColorStop[1].StopOffset.value == 1.0 assert layer.Paint.ColorLine.ColorStop[1].Color.PaletteIndex == 4 assert layer.Paint.x0.value == 100 assert layer.Paint.y0.value == 200 assert layer.Paint.x1.value == 150 assert layer.Paint.y1.value == 250 def test_buildPaintGlyph_RadialGradient(): layerBuilder = LayerV1ListBuilder() layer = layerBuilder.buildPaintGlyph( "a", layerBuilder.buildPaintRadialGradient( { "stops": [ (0.0, 5), {"offset": 0.5, "paletteIndex": 6, "alpha": 0.8}, (1.0, 7), ] }, (50, 50), (75, 75), 30, 10, ), ) assert layer.Paint.Format == ot.Paint.Format.PaintRadialGradient assert layer.Paint.ColorLine.ColorStop[0].StopOffset.value == 0.0 assert layer.Paint.ColorLine.ColorStop[0].Color.PaletteIndex == 5 assert layer.Paint.ColorLine.ColorStop[1].StopOffset.value == 0.5 assert layer.Paint.ColorLine.ColorStop[1].Color.PaletteIndex == 6 assert layer.Paint.ColorLine.ColorStop[1].Color.Alpha.value == 0.8 assert layer.Paint.ColorLine.ColorStop[2].StopOffset.value == 1.0 assert layer.Paint.ColorLine.ColorStop[2].Color.PaletteIndex == 7 assert layer.Paint.x0.value == 50 assert layer.Paint.y0.value == 50 assert layer.Paint.r0.value == 30 assert layer.Paint.x1.value == 75 assert layer.Paint.y1.value == 75 assert layer.Paint.r1.value == 10 def test_buildPaintGlyph_Dict_Solid(): layerBuilder = LayerV1ListBuilder() layer = layerBuilder.buildPaintGlyph("a", {"format": 2, "paletteIndex": 0}) assert layer.Glyph == "a" assert layer.Paint.Format == ot.Paint.Format.PaintSolid assert layer.Paint.Color.PaletteIndex == 0 def test_buildPaintGlyph_Dict_LinearGradient(): layerBuilder = LayerV1ListBuilder() layer = layerBuilder.buildPaintGlyph( "a", { "format": 3, "colorLine": {"stops": [(0.0, 0), (1.0, 1)]}, "p0": (0, 0), "p1": (10, 10), }, ) assert layer.Paint.Format == ot.Paint.Format.PaintLinearGradient assert layer.Paint.ColorLine.ColorStop[0].StopOffset.value == 0.0 def test_buildPaintGlyph_Dict_RadialGradient(): layerBuilder = LayerV1ListBuilder() layer = layerBuilder.buildPaintGlyph( "a", { "format": 4, "colorLine": {"stops": [(0.0, 0), (1.0, 1)]}, "c0": (0, 0), "c1": (10, 10), "r0": 4, "r1": 0, }, ) assert layer.Paint.Format == ot.Paint.Format.PaintRadialGradient assert layer.Paint.r0.value == 4 def test_buildPaintColrGlyph(): paint = LayerV1ListBuilder().buildPaintColrGlyph("a") assert paint.Format == ot.Paint.Format.PaintColrGlyph assert paint.Glyph == "a" def test_buildPaintTransform(): layerBuilder = LayerV1ListBuilder() paint = layerBuilder.buildPaintTransform( transform=builder.buildAffine2x3((1, 2, 3, 4, 5, 6)), paint=layerBuilder.buildPaintGlyph( glyph="a", paint=layerBuilder.buildPaintSolid(paletteIndex=0, alpha=1.0), ), ) assert paint.Format == ot.Paint.Format.PaintTransform assert paint.Paint.Format == ot.Paint.Format.PaintGlyph assert paint.Paint.Paint.Format == ot.Paint.Format.PaintSolid assert paint.Transform.xx.value == 1.0 assert paint.Transform.yx.value == 2.0 assert paint.Transform.xy.value == 3.0 assert paint.Transform.yy.value == 4.0 assert paint.Transform.dx.value == 5.0 assert paint.Transform.dy.value == 6.0 paint = layerBuilder.buildPaintTransform( (1, 0, 0, 0.3333, 10, 10), { "format": 4, "colorLine": {"stops": [(0.0, 0), (1.0, 1)]}, "c0": (100, 100), "c1": (100, 100), "r0": 0, "r1": 50, }, ) assert paint.Format == ot.Paint.Format.PaintTransform assert paint.Transform.xx.value == 1.0 assert paint.Transform.yx.value == 0.0 assert paint.Transform.xy.value == 0.0 assert paint.Transform.yy.value == 0.3333 assert paint.Transform.dx.value == 10 assert paint.Transform.dy.value == 10 assert paint.Paint.Format == ot.Paint.Format.PaintRadialGradient def test_buildPaintComposite(): layerBuilder = LayerV1ListBuilder() composite = layerBuilder.buildPaintComposite( mode=ot.CompositeMode.SRC_OVER, source={ "format": 12, "mode": "src_over", "source": {"format": 6, "glyph": "c", "paint": 2}, "backdrop": {"format": 6, "glyph": "b", "paint": 1}, }, backdrop=layerBuilder.buildPaintGlyph( "a", layerBuilder.buildPaintSolid(paletteIndex=0, alpha=1.0) ), ) assert composite.Format == ot.Paint.Format.PaintComposite assert composite.SourcePaint.Format == ot.Paint.Format.PaintComposite assert composite.SourcePaint.SourcePaint.Format == ot.Paint.Format.PaintGlyph assert composite.SourcePaint.SourcePaint.Glyph == "c" assert composite.SourcePaint.SourcePaint.Paint.Format == ot.Paint.Format.PaintSolid assert composite.SourcePaint.SourcePaint.Paint.Color.PaletteIndex == 2 assert composite.SourcePaint.CompositeMode == ot.CompositeMode.SRC_OVER assert composite.SourcePaint.BackdropPaint.Format == ot.Paint.Format.PaintGlyph assert composite.SourcePaint.BackdropPaint.Glyph == "b" assert ( composite.SourcePaint.BackdropPaint.Paint.Format == ot.Paint.Format.PaintSolid ) assert composite.SourcePaint.BackdropPaint.Paint.Color.PaletteIndex == 1 assert composite.CompositeMode == ot.CompositeMode.SRC_OVER assert composite.BackdropPaint.Format == ot.Paint.Format.PaintGlyph assert composite.BackdropPaint.Glyph == "a" assert composite.BackdropPaint.Paint.Format == ot.Paint.Format.PaintSolid assert composite.BackdropPaint.Paint.Color.PaletteIndex == 0 def test_buildPaintTranslate(): layerBuilder = LayerV1ListBuilder() paint = layerBuilder.buildPaintTranslate( paint=layerBuilder.buildPaintGlyph( "a", layerBuilder.buildPaintSolid(paletteIndex=0, alpha=1.0) ), dx=123, dy=-345, ) assert paint.Format == ot.Paint.Format.PaintTranslate assert paint.Paint.Format == ot.Paint.Format.PaintGlyph assert paint.dx.value == 123 assert paint.dy.value == -345 def test_buildPaintRotate(): layerBuilder = LayerV1ListBuilder() paint = layerBuilder.buildPaintRotate( paint=layerBuilder.buildPaintGlyph( "a", layerBuilder.buildPaintSolid(paletteIndex=0, alpha=1.0) ), angle=15, centerX=127, centerY=129, ) assert paint.Format == ot.Paint.Format.PaintRotate assert paint.Paint.Format == ot.Paint.Format.PaintGlyph assert paint.angle.value == 15 assert paint.centerX.value == 127 assert paint.centerY.value == 129 def test_buildPaintSkew(): layerBuilder = LayerV1ListBuilder() paint = layerBuilder.buildPaintSkew( paint=layerBuilder.buildPaintGlyph( "a", layerBuilder.buildPaintSolid(paletteIndex=0, alpha=1.0) ), xSkewAngle=15, ySkewAngle=42, centerX=127, centerY=129, ) assert paint.Format == ot.Paint.Format.PaintSkew assert paint.Paint.Format == ot.Paint.Format.PaintGlyph assert paint.xSkewAngle.value == 15 assert paint.ySkewAngle.value == 42 assert paint.centerX.value == 127 assert paint.centerY.value == 129 def test_buildColrV1(): colorGlyphs = { "a": [("b", 0), ("c", 1)], "d": [ ("e", {"format": 2, "paletteIndex": 2, "alpha": 0.8}), ( "f", { "format": 4, "colorLine": {"stops": [(0.0, 3), (1.0, 4)], "extend": "reflect"}, "c0": (0, 0), "c1": (0, 0), "r0": 10, "r1": 0, }, ), ], "g": [("h", 5)], } glyphMap = { ".notdef": 0, "a": 4, "b": 3, "c": 2, "d": 1, "e": 5, "f": 6, "g": 7, "h": 8, } # TODO(anthrotype) should we split into two tests? - seems two distinct validations layers, baseGlyphs = builder.buildColrV1(colorGlyphs, glyphMap) assert baseGlyphs.BaseGlyphCount == len(colorGlyphs) assert baseGlyphs.BaseGlyphV1Record[0].BaseGlyph == "d" assert baseGlyphs.BaseGlyphV1Record[1].BaseGlyph == "a" assert baseGlyphs.BaseGlyphV1Record[2].BaseGlyph == "g" layers, baseGlyphs = builder.buildColrV1(colorGlyphs) assert baseGlyphs.BaseGlyphCount == len(colorGlyphs) assert baseGlyphs.BaseGlyphV1Record[0].BaseGlyph == "a" assert baseGlyphs.BaseGlyphV1Record[1].BaseGlyph == "d" assert baseGlyphs.BaseGlyphV1Record[2].BaseGlyph == "g" def test_buildColrV1_more_than_255_paints(): num_paints = 364 colorGlyphs = { "a": [ { "format": 6, # PaintGlyph "paint": 0, "glyph": name, } for name in (f"glyph{i}" for i in range(num_paints)) ], } layers, baseGlyphs = builder.buildColrV1(colorGlyphs) paints = layers.Paint assert len(paints) == num_paints + 1 assert all(paints[i].Format == ot.Paint.Format.PaintGlyph for i in range(255)) assert paints[255].Format == ot.Paint.Format.PaintColrLayers assert paints[255].FirstLayerIndex == 0 assert paints[255].NumLayers == 255 assert all( paints[i].Format == ot.Paint.Format.PaintGlyph for i in range(256, num_paints + 1) ) assert baseGlyphs.BaseGlyphCount == len(colorGlyphs) assert baseGlyphs.BaseGlyphV1Record[0].BaseGlyph == "a" assert ( baseGlyphs.BaseGlyphV1Record[0].Paint.Format == ot.Paint.Format.PaintColrLayers ) assert baseGlyphs.BaseGlyphV1Record[0].Paint.FirstLayerIndex == 255 assert baseGlyphs.BaseGlyphV1Record[0].Paint.NumLayers == num_paints + 1 - 255 def test_split_color_glyphs_by_version(): layerBuilder = LayerV1ListBuilder() colorGlyphs = { "a": [ ("b", 0), ("c", 1), ("d", 2), ("e", 3), ] } colorGlyphsV0, colorGlyphsV1 = builder._split_color_glyphs_by_version(colorGlyphs) assert colorGlyphsV0 == {"a": [("b", 0), ("c", 1), ("d", 2), ("e", 3)]} assert not colorGlyphsV1 colorGlyphs = { "a": [("b", layerBuilder.buildPaintSolid(paletteIndex=0, alpha=0.0))] } colorGlyphsV0, colorGlyphsV1 = builder._split_color_glyphs_by_version(colorGlyphs) assert not colorGlyphsV0 assert colorGlyphsV1 == colorGlyphs colorGlyphs = { "a": [("b", 0)], "c": [ ("d", 1), ( "e", { "format": 3, "colorLine": {"stops": [(0.0, 2), (1.0, 3)]}, "p0": (0, 0), "p1": (10, 10), }, ), ], } colorGlyphsV0, colorGlyphsV1 = builder._split_color_glyphs_by_version(colorGlyphs) assert colorGlyphsV0 == {"a": [("b", 0)]} assert "a" not in colorGlyphsV1 assert "c" in colorGlyphsV1 assert len(colorGlyphsV1["c"]) == 2 def assertIsColrV1(colr): assert colr.version == 1 assert not hasattr(colr, "ColorLayers") assert hasattr(colr, "table") assert isinstance(colr.table, ot.COLR) def assertNoV0Content(colr): assert colr.table.BaseGlyphRecordCount == 0 assert colr.table.BaseGlyphRecordArray is None assert colr.table.LayerRecordCount == 0 assert colr.table.LayerRecordArray is None def test_build_layerv1list_empty(): # Nobody uses PaintColrLayers (format 1), no layerlist colr = builder.buildCOLR( { "a": { "format": 6, # PaintGlyph "paint": {"format": 2, "paletteIndex": 2, "alpha": 0.8}, "glyph": "b", }, # A list of 1 shouldn't become a PaintColrLayers "b": [ { "format": 6, # PaintGlyph "paint": { "format": 3, "colorLine": { "stops": [(0.0, 2), (1.0, 3)], "extend": "reflect", }, "p0": (1, 2), "p1": (3, 4), "p2": (2, 2), }, "glyph": "bb", } ], } ) assertIsColrV1(colr) assertNoV0Content(colr) # 2 v1 glyphs, none in LayerV1List assert colr.table.BaseGlyphV1List.BaseGlyphCount == 2 assert len(colr.table.BaseGlyphV1List.BaseGlyphV1Record) == 2 assert colr.table.LayerV1List.LayerCount == 0 assert len(colr.table.LayerV1List.Paint) == 0 def _paint_names(paints) -> List[str]: # prints a predictable string from a paint list to enable # semi-readable assertions on a LayerV1List order. result = [] for paint in paints: if paint.Format == int(ot.Paint.Format.PaintGlyph): result.append(paint.Glyph) elif paint.Format == int(ot.Paint.Format.PaintColrLayers): result.append( f"Layers[{paint.FirstLayerIndex}:{paint.FirstLayerIndex+paint.NumLayers}]" ) return result def test_build_layerv1list_simple(): # Two colr glyphs, each with two layers the first of which is common # All layers use the same solid paint solid_paint = {"format": 2, "paletteIndex": 2, "alpha": 0.8} backdrop = { "format": 6, # PaintGlyph "paint": solid_paint, "glyph": "back", } a_foreground = { "format": 6, # PaintGlyph "paint": solid_paint, "glyph": "a_fore", } b_foreground = { "format": 6, # PaintGlyph "paint": solid_paint, "glyph": "b_fore", } # list => PaintColrLayers, which means contents should be in LayerV1List colr = builder.buildCOLR( { "a": [ backdrop, a_foreground, ], "b": [ backdrop, b_foreground, ], } ) assertIsColrV1(colr) assertNoV0Content(colr) # 2 v1 glyphs, 4 paints in LayerV1List # A single shared backdrop isn't worth accessing by slice assert colr.table.BaseGlyphV1List.BaseGlyphCount == 2 assert len(colr.table.BaseGlyphV1List.BaseGlyphV1Record) == 2 assert colr.table.LayerV1List.LayerCount == 4 assert _paint_names(colr.table.LayerV1List.Paint) == [ "back", "a_fore", "back", "b_fore", ] def test_build_layerv1list_with_sharing(): # Three colr glyphs, each with two layers in common solid_paint = {"format": 2, "paletteIndex": 2, "alpha": 0.8} backdrop = [ { "format": 6, # PaintGlyph "paint": solid_paint, "glyph": "back1", }, { "format": 6, # PaintGlyph "paint": solid_paint, "glyph": "back2", }, ] a_foreground = { "format": 6, # PaintGlyph "paint": solid_paint, "glyph": "a_fore", } b_background = { "format": 6, # PaintGlyph "paint": solid_paint, "glyph": "b_back", } b_foreground = { "format": 6, # PaintGlyph "paint": solid_paint, "glyph": "b_fore", } c_background = { "format": 6, # PaintGlyph "paint": solid_paint, "glyph": "c_back", } # list => PaintColrLayers, which means contents should be in LayerV1List colr = builder.buildCOLR( { "a": backdrop + [a_foreground], "b": [b_background] + backdrop + [b_foreground], "c": [c_background] + backdrop, } ) assertIsColrV1(colr) assertNoV0Content(colr) # 2 v1 glyphs, 4 paints in LayerV1List # A single shared backdrop isn't worth accessing by slice baseGlyphs = colr.table.BaseGlyphV1List.BaseGlyphV1Record assert colr.table.BaseGlyphV1List.BaseGlyphCount == 3 assert len(baseGlyphs) == 3 assert _paint_names([b.Paint for b in baseGlyphs]) == [ "Layers[0:3]", "Layers[3:6]", "Layers[6:8]", ] assert _paint_names(colr.table.LayerV1List.Paint) == [ "back1", "back2", "a_fore", "b_back", "Layers[0:2]", "b_fore", "c_back", "Layers[0:2]", ] assert colr.table.LayerV1List.LayerCount == 8 def test_build_layerv1list_with_overlaps(): paints = [ { "format": 6, # PaintGlyph "paint": {"format": 2, "paletteIndex": 2, "alpha": 0.8}, "glyph": c, } for c in "abcdefghi" ] # list => PaintColrLayers, which means contents should be in LayerV1List colr = builder.buildCOLR( { "a": paints[0:4], "b": paints[0:6], "c": paints[2:8], } ) assertIsColrV1(colr) assertNoV0Content(colr) baseGlyphs = colr.table.BaseGlyphV1List.BaseGlyphV1Record # assert colr.table.BaseGlyphV1List.BaseGlyphCount == 2 assert _paint_names(colr.table.LayerV1List.Paint) == [ "a", "b", "c", "d", "Layers[0:4]", "e", "f", "Layers[2:4]", "Layers[5:7]", "g", "h", ] assert _paint_names([b.Paint for b in baseGlyphs]) == [ "Layers[0:4]", "Layers[4:7]", "Layers[7:11]", ] assert colr.table.LayerV1List.LayerCount == 11 class BuildCOLRTest(object): def test_automatic_version_all_solid_color_glyphs(self): colr = builder.buildCOLR({"a": [("b", 0), ("c", 1)]}) assert colr.version == 0 assert hasattr(colr, "ColorLayers") assert colr.ColorLayers["a"][0].name == "b" assert colr.ColorLayers["a"][1].name == "c" def test_automatic_version_no_solid_color_glyphs(self): colr = builder.buildCOLR( { "a": [ ( "b", { "format": 4, "colorLine": { "stops": [(0.0, 0), (1.0, 1)], "extend": "repeat", }, "c0": (1, 0), "c1": (10, 0), "r0": 4, "r1": 2, }, ), ("c", {"format": 2, "paletteIndex": 2, "alpha": 0.8}), ], "d": [ ( "e", { "format": 3, "colorLine": { "stops": [(0.0, 2), (1.0, 3)], "extend": "reflect", }, "p0": (1, 2), "p1": (3, 4), "p2": (2, 2), }, ), ], } ) assertIsColrV1(colr) assert colr.table.BaseGlyphRecordCount == 0 assert colr.table.BaseGlyphRecordArray is None assert colr.table.LayerRecordCount == 0 assert colr.table.LayerRecordArray is None def test_automatic_version_mixed_solid_and_gradient_glyphs(self): colr = builder.buildCOLR( { "a": [("b", 0), ("c", 1)], "d": [ ( "e", { "format": 3, "colorLine": {"stops": [(0.0, 2), (1.0, 3)]}, "p0": (1, 2), "p1": (3, 4), "p2": (2, 2), }, ), ("f", {"format": 2, "paletteIndex": 2, "alpha": 0.8}), ], } ) assertIsColrV1(colr) assert colr.table.VarStore is None assert colr.table.BaseGlyphRecordCount == 1 assert isinstance(colr.table.BaseGlyphRecordArray, ot.BaseGlyphRecordArray) assert colr.table.LayerRecordCount == 2 assert isinstance(colr.table.LayerRecordArray, ot.LayerRecordArray) assert isinstance(colr.table.BaseGlyphV1List, ot.BaseGlyphV1List) assert colr.table.BaseGlyphV1List.BaseGlyphCount == 1 assert isinstance( colr.table.BaseGlyphV1List.BaseGlyphV1Record[0], ot.BaseGlyphV1Record ) assert colr.table.BaseGlyphV1List.BaseGlyphV1Record[0].BaseGlyph == "d" assert isinstance(colr.table.LayerV1List, ot.LayerV1List) assert colr.table.LayerV1List.Paint[0].Glyph == "e" def test_explicit_version_0(self): colr = builder.buildCOLR({"a": [("b", 0), ("c", 1)]}, version=0) assert colr.version == 0 assert hasattr(colr, "ColorLayers") def test_explicit_version_1(self): colr = builder.buildCOLR({"a": [("b", 0), ("c", 1)]}, version=1) assert colr.version == 1 assert not hasattr(colr, "ColorLayers") assert hasattr(colr, "table") assert isinstance(colr.table, ot.COLR) assert colr.table.VarStore is None class TrickyRadialGradientTest: @staticmethod def circle_inside_circle(c0, r0, c1, r1, rounded=False): if rounded: return Circle(c0, r0).round().inside(Circle(c1, r1).round()) else: return Circle(c0, r0).inside(Circle(c1, r1)) def round_start_circle(self, c0, r0, c1, r1, inside=True): assert self.circle_inside_circle(c0, r0, c1, r1) is inside assert self.circle_inside_circle(c0, r0, c1, r1, rounded=True) is not inside r = round_start_circle_stable_containment(c0, r0, c1, r1) assert ( self.circle_inside_circle(r.centre, r.radius, c1, r1, rounded=True) is inside ) return r.centre, r.radius def test_noto_emoji_mosquito_u1f99f(self): # https://github.com/googlefonts/picosvg/issues/158 c0 = (385.23508, 70.56727999999998) r0 = 0 c1 = (642.99108, 104.70327999999995) r1 = 260.0072 assert self.round_start_circle(c0, r0, c1, r1, inside=True) == ((386, 71), 0) @pytest.mark.parametrize( "c0, r0, c1, r1, inside, expected", [ # inside before round, outside after round ((1.4, 0), 0, (2.6, 0), 1.3, True, ((2, 0), 0)), ((1, 0), 0.6, (2.8, 0), 2.45, True, ((2, 0), 1)), ((6.49, 6.49), 0, (0.49, 0.49), 8.49, True, ((5, 5), 0)), # outside before round, inside after round ((0, 0), 0, (2, 0), 1.5, False, ((-1, 0), 0)), ((0, -0.5), 0, (0, -2.5), 1.5, False, ((0, 1), 0)), # the following ones require two nudges to round correctly ((0.5, 0), 0, (9.4, 0), 8.8, False, ((-1, 0), 0)), ((1.5, 1.5), 0, (0.49, 0.49), 1.49, True, ((0, 0), 0)), # limit case when circle almost exactly overlap ((0.5000001, 0), 0.5000001, (0.499999, 0), 0.4999999, True, ((0, 0), 0)), # concentrical circles, r0 > r1 ((0, 0), 1.49, (0, 0), 1, False, ((0, 0), 2)), ], ) def test_nudge_start_circle_position(self, c0, r0, c1, r1, inside, expected): assert self.round_start_circle(c0, r0, c1, r1, inside) == expected @pytest.mark.parametrize( "lst, n, expected", [ ([0], 2, [0]), ([0, 1], 2, [0, 1]), ([0, 1, 2], 2, [[0, 1], 2]), ([0, 1, 2], 3, [0, 1, 2]), ([0, 1, 2, 3], 2, [[0, 1], [2, 3]]), ([0, 1, 2, 3], 3, [[0, 1, 2], 3]), ([0, 1, 2, 3, 4], 3, [[0, 1, 2], 3, 4]), ([0, 1, 2, 3, 4, 5], 3, [[0, 1, 2], [3, 4, 5]]), (list(range(7)), 3, [[0, 1, 2], [3, 4, 5], 6]), (list(range(8)), 3, [[0, 1, 2], [3, 4, 5], [6, 7]]), (list(range(9)), 3, [[0, 1, 2], [3, 4, 5], [6, 7, 8]]), (list(range(10)), 3, [[[0, 1, 2], [3, 4, 5], [6, 7, 8]], 9]), (list(range(11)), 3, [[[0, 1, 2], [3, 4, 5], [6, 7, 8]], 9, 10]), (list(range(12)), 3, [[[0, 1, 2], [3, 4, 5], [6, 7, 8]], [9, 10, 11]]), (list(range(13)), 3, [[[0, 1, 2], [3, 4, 5], [6, 7, 8]], [9, 10, 11], 12]), ( list(range(14)), 3, [[[0, 1, 2], [3, 4, 5], [6, 7, 8]], [[9, 10, 11], 12, 13]], ), ( list(range(15)), 3, [[[0, 1, 2], [3, 4, 5], [6, 7, 8]], [9, 10, 11], [12, 13, 14]], ), ( list(range(16)), 3, [[[0, 1, 2], [3, 4, 5], [6, 7, 8]], [[9, 10, 11], [12, 13, 14], 15]], ), ( list(range(23)), 3, [ [[0, 1, 2], [3, 4, 5], [6, 7, 8]], [[9, 10, 11], [12, 13, 14], [15, 16, 17]], [[18, 19, 20], 21, 22], ], ), ( list(range(27)), 3, [ [[0, 1, 2], [3, 4, 5], [6, 7, 8]], [[9, 10, 11], [12, 13, 14], [15, 16, 17]], [[18, 19, 20], [21, 22, 23], [24, 25, 26]], ], ), ( list(range(28)), 3, [ [ [[0, 1, 2], [3, 4, 5], [6, 7, 8]], [[9, 10, 11], [12, 13, 14], [15, 16, 17]], [[18, 19, 20], [21, 22, 23], [24, 25, 26]], ], 27, ], ), (list(range(257)), 256, [list(range(256)), 256]), (list(range(258)), 256, [list(range(256)), 256, 257]), (list(range(512)), 256, [list(range(256)), list(range(256, 512))]), (list(range(512 + 1)), 256, [list(range(256)), list(range(256, 512)), 512]), ( list(range(256 ** 2)), 256, [list(range(k * 256, k * 256 + 256)) for k in range(256)], ), ], ) def test_build_n_ary_tree(lst, n, expected): assert _build_n_ary_tree(lst, n) == expected