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Diffstat (limited to 'Tests/subset/subset_test.py')
| -rw-r--r-- | Tests/subset/subset_test.py | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/Tests/subset/subset_test.py b/Tests/subset/subset_test.py index d37634f1..370f9b62 100644 --- a/Tests/subset/subset_test.py +++ b/Tests/subset/subset_test.py @@ -3,7 +3,9 @@ from fontTools.misc.py23 import * from fontTools.misc.testTools import getXML from fontTools import subset from fontTools.fontBuilder import FontBuilder +from fontTools.pens.ttGlyphPen import TTGlyphPen from fontTools.ttLib import TTFont, newTable +from fontTools.ttLib.tables import otTables as ot from fontTools.misc.loggingTools import CapturingLogHandler import difflib import logging @@ -930,5 +932,256 @@ def test_subset_empty_glyf(tmp_path, ttf_path): assert all(loc == 0 for loc in loca) +@pytest.fixture +def colrv1_path(tmp_path): + base_glyph_names = ["uni%04X" % i for i in range(0xE000, 0xE000 + 10)] + layer_glyph_names = ["glyph%05d" % i for i in range(10, 20)] + glyph_order = [".notdef"] + base_glyph_names + layer_glyph_names + + pen = TTGlyphPen(glyphSet=None) + pen.moveTo((0, 0)) + pen.lineTo((0, 500)) + pen.lineTo((500, 500)) + pen.lineTo((500, 0)) + pen.closePath() + glyph = pen.glyph() + glyphs = {g: glyph for g in glyph_order} + + fb = FontBuilder(unitsPerEm=1024, isTTF=True) + fb.setupGlyphOrder(glyph_order) + fb.setupCharacterMap({int(name[3:], 16): name for name in base_glyph_names}) + fb.setupGlyf(glyphs) + fb.setupHorizontalMetrics({g: (500, 0) for g in glyph_order}) + fb.setupHorizontalHeader() + fb.setupOS2() + fb.setupPost() + fb.setupNameTable({"familyName": "TestCOLRv1", "styleName": "Regular"}) + + fb.setupCOLR( + { + "uniE000": ( + ot.PaintFormat.PaintColrLayers, + [ + { + "Format": ot.PaintFormat.PaintGlyph, + "Paint": (ot.PaintFormat.PaintSolid, 0), + "Glyph": "glyph00010", + }, + { + "Format": ot.PaintFormat.PaintGlyph, + "Paint": (ot.PaintFormat.PaintSolid, (2, 0.3)), + "Glyph": "glyph00011", + }, + ], + ), + "uniE001": ( + ot.PaintFormat.PaintColrLayers, + [ + { + "Format": ot.PaintFormat.PaintTransform, + "Paint": { + "Format": ot.PaintFormat.PaintGlyph, + "Paint": { + "Format": ot.PaintFormat.PaintRadialGradient, + "x0": 250, + "y0": 250, + "r0": 250, + "x1": 200, + "y1": 200, + "r1": 0, + "ColorLine": { + "ColorStop": [(0.0, 1), (1.0, 2)], + "Extend": "repeat", + }, + }, + "Glyph": "glyph00012", + }, + "Transform": (0.7071, 0.7071, -0.7071, 0.7071, 0, 0), + }, + { + "Format": ot.PaintFormat.PaintGlyph, + "Paint": (ot.PaintFormat.PaintSolid, (1, 0.5)), + "Glyph": "glyph00013", + }, + ], + ), + "uniE002": ( + ot.PaintFormat.PaintColrLayers, + [ + { + "Format": ot.PaintFormat.PaintGlyph, + "Paint": { + "Format": ot.PaintFormat.PaintLinearGradient, + "x0": 0, + "y0": 0, + "x1": 500, + "y1": 500, + "x2": -500, + "y2": 500, + "ColorLine": {"ColorStop": [(0.0, 1), (1.0, 2)]}, + }, + "Glyph": "glyph00014", + }, + { + "Format": ot.PaintFormat.PaintTransform, + "Paint": { + "Format": ot.PaintFormat.PaintGlyph, + "Paint": (ot.PaintFormat.PaintSolid, 1), + "Glyph": "glyph00015", + }, + "Transform": (1, 0, 0, 1, 400, 400), + }, + ], + ), + "uniE003": { + "Format": ot.PaintFormat.PaintRotate, + "Paint": { + "Format": ot.PaintFormat.PaintColrGlyph, + "Glyph": "uniE001", + }, + "angle": 45, + "centerX": 250, + "centerY": 250, + }, + "uniE004": [ + ("glyph00016", 1), + ("glyph00017", 2), + ], + }, + ) + fb.setupCPAL( + [ + [ + (1.0, 0.0, 0.0, 1.0), # red + (0.0, 1.0, 0.0, 1.0), # green + (0.0, 0.0, 1.0, 1.0), # blue + ], + ], + ) + + output_path = tmp_path / "TestCOLRv1.ttf" + fb.save(output_path) + + return output_path + + +def test_subset_COLRv1_and_CPAL(colrv1_path): + subset_path = colrv1_path.parent / (colrv1_path.name + ".subset") + + subset.main( + [ + str(colrv1_path), + "--glyph-names", + f"--output-file={subset_path}", + "--unicodes=E002,E003,E004", + ] + ) + subset_font = TTFont(subset_path) + + glyph_set = set(subset_font.getGlyphOrder()) + + # uniE000 and its children are excluded from subset + assert "uniE000" not in glyph_set + assert "glyph00010" not in glyph_set + assert "glyph00011" not in glyph_set + + # uniE001 and children are pulled in indirectly as PaintColrGlyph by uniE003 + assert "uniE001" in glyph_set + assert "glyph00012" in glyph_set + assert "glyph00013" in glyph_set + + assert "uniE002" in glyph_set + assert "glyph00014" in glyph_set + assert "glyph00015" in glyph_set + + assert "uniE003" in glyph_set + + assert "uniE004" in glyph_set + assert "glyph00016" in glyph_set + assert "glyph00017" in glyph_set + + assert "COLR" in subset_font + colr = subset_font["COLR"].table + assert colr.Version == 1 + assert len(colr.BaseGlyphRecordArray.BaseGlyphRecord) == 1 + assert len(colr.BaseGlyphV1List.BaseGlyphV1Record) == 3 # was 4 + + base = colr.BaseGlyphV1List.BaseGlyphV1Record[0] + assert base.BaseGlyph == "uniE001" + layers = colr.LayerV1List.Paint[ + base.Paint.FirstLayerIndex: base.Paint.FirstLayerIndex + base.Paint.NumLayers + ] + assert len(layers) == 2 + # check v1 palette indices were remapped + assert layers[0].Paint.Paint.ColorLine.ColorStop[0].Color.PaletteIndex == 0 + assert layers[0].Paint.Paint.ColorLine.ColorStop[1].Color.PaletteIndex == 1 + assert layers[1].Paint.Color.PaletteIndex == 0 + + baseRecV0 = colr.BaseGlyphRecordArray.BaseGlyphRecord[0] + assert baseRecV0.BaseGlyph == "uniE004" + layersV0 = colr.LayerRecordArray.LayerRecord + assert len(layersV0) == 2 + # check v0 palette indices were remapped + assert layersV0[0].PaletteIndex == 0 + assert layersV0[1].PaletteIndex == 1 + + assert "CPAL" in subset_font + cpal = subset_font["CPAL"] + assert [ + tuple(v / 255 for v in (c.red, c.green, c.blue, c.alpha)) + for c in cpal.palettes[0] + ] == [ + # the first color 'red' was pruned + (0.0, 1.0, 0.0, 1.0), # green + (0.0, 0.0, 1.0, 1.0), # blue + ] + + +def test_subset_COLRv1_and_CPAL_drop_empty(colrv1_path): + subset_path = colrv1_path.parent / (colrv1_path.name + ".subset") + + subset.main( + [ + str(colrv1_path), + "--glyph-names", + f"--output-file={subset_path}", + "--glyphs=glyph00010", + ] + ) + subset_font = TTFont(subset_path) + + glyph_set = set(subset_font.getGlyphOrder()) + + assert "glyph00010" in glyph_set + assert "uniE000" not in glyph_set + + assert "COLR" not in subset_font + assert "CPAL" not in subset_font + + +def test_subset_COLRv1_downgrade_version(colrv1_path): + subset_path = colrv1_path.parent / (colrv1_path.name + ".subset") + + subset.main( + [ + str(colrv1_path), + "--glyph-names", + f"--output-file={subset_path}", + "--unicodes=E004", + ] + ) + subset_font = TTFont(subset_path) + + assert set(subset_font.getGlyphOrder()) == { + ".notdef", + "uniE004", + "glyph00016", + "glyph00017", + } + + assert "COLR" in subset_font + assert subset_font["COLR"].version == 0 + + if __name__ == "__main__": sys.exit(unittest.main()) |