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#!/usr/bin/env python3
'''Creates duplicate versions of glyphs that are scaled and shifted.
Input is a csv with three fields: original,new,unicode'''
__url__ = 'http://github.com/silnrsi/pysilfont'
__copyright__ = 'Copyright (c) 2019 SIL International (http://www.sil.org)'
__license__ = 'Released under the MIT License (http://opensource.org/licenses/MIT)'
__author__ = 'Victor Gaultney'
from silfont.core import execute
from silfont.util import parsecolors
from ast import literal_eval as make_tuple
argspec = [
('ifont', {'help': 'Input font filename'}, {'type': 'infont'}),
('ofont',{'help': 'Output font file','nargs': '?' }, {'type': 'outfont'}),
('-i','--input',{'help': 'Input csv file', 'required': True}, {'type': 'incsv', 'def': 'scaledshifted.csv'}),
('-c', '--colorcells', {'help': 'Color cells of generated glyphs', 'action': 'store_true'}, {}),
('--color', {'help': 'Color to use when marking generated glyphs'},{}),
('-t','--transform',{'help': 'Transform matrix or type', 'required': True}, {}),
('-l','--log',{'help': 'Set log file name'}, {'type': 'outfile', 'def': '_scaledshifted.log'})]
def doit(args) :
font = args.ifont
logger = args.logger
transform = args.transform
if transform[1] == "(":
# Set transform from matrix - example: "(0.72, 0, 0, 0.6, 10, 806)"
# (xx, xy, yx, yy, x, y)
trans = make_tuple(args.transform)
else:
# Set transformation specs from UFO lib.plist org.sil.lcg.transforms
# Will need to be enhanced to support adjustMetrics, boldX, boldY parameters for smallcaps
try:
trns = font.lib["org.sil.lcg.transforms"][transform]
except KeyError:
logger.log("Error: transform type not found in lib.plist org.sil.lcg.transforms", "S")
else:
try:
adjM = trns["adjustMetrics"]
except KeyError:
adjM = 0
try:
skew = trns["skew"]
except KeyError:
skew = 0
try:
shiftX = trns["shiftX"]
except KeyError:
shiftX = 0
try:
shiftY = trns["shiftY"]
except KeyError:
shiftY = 0
trans = (trns["scaleX"], 0, skew, trns["scaleY"], shiftX+adjM, shiftY)
# Process csv list into a dictionary structure
args.input.numfields = 3
deps = {}
for (source, newname, newuni) in args.input :
if source in deps:
deps[source].append({"newname": newname, "newuni": newuni})
else:
deps[source] = [({"newname": newname, "newuni": newuni})]
# Iterate through dictionary (unsorted)
for source in deps:
# Check if source glyph is in font
if source in font.keys() :
for target in deps[source]:
# Give warning if target is already in font, but overwrite anyway
targetname = target["newname"]
if targetname in font.keys() :
logger.log("Warning: " + targetname + " already in font and will be replaced")
# Make a copy of source into a new glyph object
sourceglyph = font[source]
newglyph = sourceglyph.copy()
newglyph.transformBy(trans)
# Set width because transformBy does not seems to properly adjust width
newglyph.width = (int(newglyph.width * trans[0])) + (adjM * 2)
# Set unicode
newglyph.unicodes = []
if target["newuni"]:
newglyph.unicode = int(target["newuni"], 16)
# mark glyphs as being generated by setting cell mark color (defaults to blue if args.color not set)
if args.colorcells or args.color:
if args.color:
(color, name, logcolor, splitcolor) = parsecolors(args.color, single=True)
if color is None: logger.log(logcolor, "S") # If color not parsed, parsecolors() puts error in logcolor
color = color.split(",") # Need to convert string to tuple
color = (float(color[0]), float(color[1]), float(color[2]), float(color[3]))
else:
color = (0.18, 0.16, 0.78, 1)
newglyph.markColor = color
# Add the new glyph object to the font with name target
font.__setitem__(targetname, newglyph)
# Decompose glyph in case there may be components
# It seems you can't decompose a glyph has hasn't yet been added to a font
font[targetname].decompose()
# Correct path direction
font[targetname].correctDirection()
logger.log(source + " duplicated to " + targetname)
else :
logger.log("Warning: " + source + " not in font")
return font
def cmd() : execute("FP",doit,argspec)
if __name__ == "__main__": cmd()
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