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colorLib: add type annotations

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Cosimo Lupo 2020-02-17 12:11:32 +00:00
parent acfae6721b
commit 7a2f68a317
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1 changed files with 12 additions and 13 deletions
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25
Lib/fontTools/colorLib/builder.py
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@ -1,46 +1,45 @@
from fontTools.ttLib import newTable from typing import Dict, List, Tuple
from fontTools.ttLib.tables.C_O_L_R_ import LayerRecord, table_C_O_L_R_
from fontTools.ttLib.tables.C_P_A_L_ import Color, table_C_P_A_L_
from .errors import ColorLibError from .errors import ColorLibError
def buildCOLR(colorLayers): def buildCOLR(colorLayers: Dict[str, List[Tuple[str, int]]]) -> table_C_O_L_R_:
"""Build COLR table from color layers mapping. """Build COLR table from color layers mapping.
Args: Args:
colorLayers: Dict[str, List[Tuple[str, int]]]: map of base glyph names (str) colorLayers: : map of base glyph names to lists of (layer glyph names,
to lists of layer glyph names (str) and palette indices (int) tuples. palette indices) tuples.
Return: Return:
A new COLRv0 table. A new COLRv0 table.
""" """
from fontTools.ttLib.tables.C_O_L_R_ import LayerRecord
colorLayerLists = {} colorLayerLists = {}
for baseGlyphName, layers in colorLayers.items(): for baseGlyphName, layers in colorLayers.items():
colorLayerLists[baseGlyphName] = [ colorLayerLists[baseGlyphName] = [
LayerRecord(layerGlyphName, colorID) for layerGlyphName, colorID in layers LayerRecord(layerGlyphName, colorID) for layerGlyphName, colorID in layers
] ]
colr = newTable("COLR") colr = table_C_O_L_R_()
colr.version = 0 colr.version = 0
colr.ColorLayers = colorLayerLists colr.ColorLayers = colorLayerLists
return colr return colr
def buildCPAL(palettes): def buildCPAL(
palettes: List[List[Tuple[float, float, float, float]]]
) -> table_C_P_A_L_:
"""Build CPAL table from list of color palettes. """Build CPAL table from list of color palettes.
Args: Args:
palettes: List[List[Tuple[float, float, float, float]]]: list of lists palettes: : list of lists of colors encoded as tuples of (R, G, B, A) floats.
colors encoded as tuples of (R, G, B, A) floats.
Return: Return:
A new CPALv0 table. A new CPALv0 table.
""" """
from fontTools.ttLib.tables.C_P_A_L_ import Color
if len({len(p) for p in palettes}) != 1: if len({len(p) for p in palettes}) != 1:
raise ColorLibError("color palettes have different lengths") raise ColorLibError("color palettes have different lengths")
cpal = newTable("CPAL") cpal = table_C_P_A_L_()
# TODO(anthotype): Support version 1 with palette types, labels and entry labels. # TODO(anthotype): Support version 1 with palette types, labels and entry labels.
cpal.version = 0 cpal.version = 0
cpal.numPaletteEntries = len(palettes[0]) cpal.numPaletteEntries = len(palettes[0])