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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
def buildCOLR(colorLayers):
def buildCOLR(colorLayers: Dict[str, List[Tuple[str, int]]]) -> table_C_O_L_R_:
"""Build COLR table from color layers mapping.
Args:
colorLayers: Dict[str, List[Tuple[str, int]]]: map of base glyph names (str)
to lists of layer glyph names (str) and palette indices (int) tuples.
colorLayers: : map of base glyph names to lists of (layer glyph names,
palette indices) tuples.
Return:
A new COLRv0 table.
"""
from fontTools.ttLib.tables.C_O_L_R_ import LayerRecord
colorLayerLists = {}
for baseGlyphName, layers in colorLayers.items():
colorLayerLists[baseGlyphName] = [
LayerRecord(layerGlyphName, colorID) for layerGlyphName, colorID in layers
]
colr = newTable("COLR")
colr = table_C_O_L_R_()
colr.version = 0
colr.ColorLayers = colorLayerLists
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.
Args:
palettes: List[List[Tuple[float, float, float, float]]]: list of lists
colors encoded as tuples of (R, G, B, A) floats.
palettes: : list of lists of colors encoded as tuples of (R, G, B, A) floats.
Return:
A new CPALv0 table.
"""
from fontTools.ttLib.tables.C_P_A_L_ import Color
if len({len(p) for p in palettes}) != 1:
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.
cpal.version = 0
cpal.numPaletteEntries = len(palettes[0])