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54 lines
1.3 KiB
54 lines
1.3 KiB
#! /usr/bin/env python3
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# Example script to decompose the composite glyphs in a TTF into
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# non-composite outlines.
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import sys
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from fontTools.ttLib import TTFont
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from fontTools.pens.recordingPen import DecomposingRecordingPen
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from fontTools.pens.ttGlyphPen import TTGlyphPen
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try:
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import pathops
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except ImportError:
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sys.exit(
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"This script requires the skia-pathops module. "
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"`pip install skia-pathops` and then retry."
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)
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if len(sys.argv) != 3:
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print("usage: decompose-ttf.py fontfile.ttf outfile.ttf")
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sys.exit(1)
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src = sys.argv[1]
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dst = sys.argv[2]
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with TTFont(src) as f:
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glyfTable = f["glyf"]
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glyphSet = f.getGlyphSet()
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for glyphName in glyphSet.keys():
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if not glyfTable[glyphName].isComposite():
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continue
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# record TTGlyph outlines without components
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dcPen = DecomposingRecordingPen(glyphSet)
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glyphSet[glyphName].draw(dcPen)
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# replay recording onto a skia-pathops Path
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path = pathops.Path()
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pathPen = path.getPen()
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dcPen.replay(pathPen)
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# remove overlaps
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path.simplify()
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# create new TTGlyph from Path
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ttPen = TTGlyphPen(None)
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path.draw(ttPen)
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glyfTable[glyphName] = ttPen.glyph()
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f.save(dst)
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