8f66a1e813
This adds an unbuildColrV1 which does the inverse of colorLib.builder.buildColrV1. Takes a LayerV1List and BaseGlypV1List and returns a map of base glyphs to raw data structures (list, dict, float, str, etc.). Useful not only for debugging purpose, but also for implementing COLRv1 subsetting (where we need to drop whole chunks of paints which may be reused by multiple glyphs).
142 lines
4.7 KiB
Python
142 lines
4.7 KiB
Python
from fontTools.ttLib.tables import otTables as ot
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from fontTools.colorLib.builder import buildColrV1
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from fontTools.colorLib.unbuilder import unbuildColrV1
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import pytest
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TEST_COLOR_GLYPHS = {
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"glyph00010": [
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{
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"format": int(ot.Paint.Format.PaintGlyph),
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"glyph": "glyph00011",
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"paint": {
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"format": int(ot.Paint.Format.PaintSolid),
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"paletteIndex": 2,
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"alpha": 0.5,
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},
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},
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{
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"format": int(ot.Paint.Format.PaintGlyph),
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"glyph": "glyph00012",
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"paint": {
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"format": int(ot.Paint.Format.PaintLinearGradient),
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"colorLine": {
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"stops": [
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{"offset": 0.0, "paletteIndex": 3, "alpha": 1.0},
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{"offset": 0.5, "paletteIndex": 4, "alpha": 1.0},
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{"offset": 1.0, "paletteIndex": 5, "alpha": 1.0},
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],
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"extend": "repeat",
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},
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"p0": (1, 2),
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"p1": (-3, -4),
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"p2": (5, 6),
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},
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},
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{
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"format": int(ot.Paint.Format.PaintGlyph),
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"glyph": "glyph00013",
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"paint": {
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"format": int(ot.Paint.Format.PaintTransform),
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"transform": (-13.0, 14.0, 15.0, -17.0, 18.0, 19.0),
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"paint": {
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"format": int(ot.Paint.Format.PaintRadialGradient),
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"colorLine": {
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"stops": [
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{"offset": 0.0, "paletteIndex": 6, "alpha": 1.0},
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{
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"offset": 1.0,
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"paletteIndex": 7,
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"alpha": 0.4,
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},
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],
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"extend": "pad",
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},
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"c0": (7, 8),
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"r0": 9,
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"c1": (10, 11),
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"r1": 12,
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},
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},
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},
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{
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"format": int(ot.Paint.Format.PaintTranslate),
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"dx": 257.0,
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"dy": 258.0,
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"paint": {
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"format": int(ot.Paint.Format.PaintRotate),
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"angle": 45.0,
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"centerX": 255.0,
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"centerY": 256.0,
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"paint": {
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"format": int(ot.Paint.Format.PaintSkew),
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"xSkewAngle": -11.0,
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"ySkewAngle": 5.0,
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"centerX": 253.0,
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"centerY": 254.0,
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"paint": {
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"format": int(ot.Paint.Format.PaintGlyph),
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"glyph": "glyph00011",
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"paint": {
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"format": int(ot.Paint.Format.PaintSolid),
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"paletteIndex": 2,
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"alpha": 0.5,
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},
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},
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},
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},
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},
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],
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"glyph00014": {
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"format": int(ot.Paint.Format.PaintComposite),
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"mode": "src_over",
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"source": {
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"format": int(ot.Paint.Format.PaintColrGlyph),
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"glyph": "glyph00010",
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},
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"backdrop": {
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"format": int(ot.Paint.Format.PaintTransform),
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"transform": (1.0, 0.0, 0.0, 1.0, 300.0, 0.0),
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"paint": {
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"format": int(ot.Paint.Format.PaintColrGlyph),
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"glyph": "glyph00010",
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},
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},
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},
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"glyph00015": [
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{
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"format": int(ot.Paint.Format.PaintGlyph),
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"glyph": "glyph00011",
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"paint": {
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"format": int(ot.Paint.Format.PaintSolid),
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"paletteIndex": 2,
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"alpha": 0.5,
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},
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},
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{
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"format": int(ot.Paint.Format.PaintGlyph),
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"glyph": "glyph00012",
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"paint": {
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"format": int(ot.Paint.Format.PaintLinearGradient),
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"colorLine": {
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"stops": [
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{"offset": 0.0, "paletteIndex": 3, "alpha": 1.0},
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{"offset": 0.5, "paletteIndex": 4, "alpha": 1.0},
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{"offset": 1.0, "paletteIndex": 5, "alpha": 1.0},
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],
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"extend": "repeat",
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},
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"p0": (1, 2),
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"p1": (-3, -4),
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"p2": (5, 6),
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},
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},
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],
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}
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def test_unbuildColrV1():
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layersV1, baseGlyphsV1 = buildColrV1(TEST_COLOR_GLYPHS)
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colorGlyphs = unbuildColrV1(layersV1, baseGlyphsV1, ignoreVarIdx=True)
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assert colorGlyphs == TEST_COLOR_GLYPHS
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