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# SPDX-License-Identifier: CC0-1.0
from __future__ import print_function
import fontforge
from math import radians
from psMat import translate
from sys import argv
class Stroker(object):
def __init__(self, fontname):
self.fontname = fontname
self.dotwidth = max(0, 100 - self.nibwidth)
self.dotheight = max(0, 100 - self.nibheight)
def modify_font(self, f):
f.strokedfont = False
for g in f.glyphs():
for i, c in enumerate(list(g.layers[1])):
newc = self.adjust_contour(c)
if newc != None: g.layers[1] += newc
g.stroke(*self.nib)
g.removeOverlap()
g.addExtrema()
g.transform(translate(0, self.nibheight/2.0))
f.familyname = self.familyname
f.fontname = self.fontname
f.fullname = self.fullname
f.appendSFNTName('English (US)', 'Preferred Family', self.familyname)
f.private['StdHW'] = self.nibheight
f.private['StdVW'] = self.nibwidth
def adjustblue(y): return y - 100 + self.nibheight
bv = list(f.private['BlueValues'])
bv[1:] = map(adjustblue, bv[1:])
f.private['BlueValues'] = tuple(bv)
f.uwidth = self.nibheight
f.os2_weight = self.ttfweight
f.weight = self.weight
return f
def adjust_contour(self, c):
# This function just expands dots.
if len(c) != 1: return None
if self.dotwidth == 0 and self.dotheight == 0: return None
newc = fontforge.contour()
newc.moveTo(c[0].x + self.dotwidth/2, c[0].y)
newc.lineTo(c[0].x, c[0].y + self.dotheight/2)
newc.lineTo(c[0].x - self.dotwidth/2, c[0].y)
newc.lineTo(c[0].x, c[0].y - self.dotheight/2)
newc.closed = True
return newc
class Plotter(Stroker):
familyname = "Bedstead Plotter"
def __init__(self, penwidth, weight, ttfweight):
self.nib = ['circular', penwidth, 'round', 'round']
self.nibwidth = self.nibheight = penwidth
self.fontname = "BedsteadPlotter-" + weight
self.fullname = "%s %s" % (self.familyname, weight)
self.ttfweight = ttfweight
self.weight = weight
super(Plotter, self).__init__("BedsteadPlotter-" + weight)
class Chiseltip(Stroker):
familyname = "Bedstead Chiseltip"
fullname = "Bedstead Chiseltip"
weight = "Medium"
ttfweight = 500
def __init__(self):
chisel = fontforge.contour()
chisel.moveTo(-56, 7)
chisel.lineTo(39, 41)
chisel.lineTo(56, -7)
chisel.lineTo(-39, -41)
chisel.closed = True
self.nib = ['polygonal', chisel]
self.nibwidth = 112
self.nibheight = 82
super(Chiseltip, self).__init__("BedsteadChiseltip")
modes = {
'plotter-thin': Plotter(10, "Thin", 100),
'plotter-light': Plotter(50, "Light", 300),
'plotter-medium': Plotter(100, "Medium", 500),
'plotter-bold': Plotter(150, "Bold", 700),
'chiseltip': Chiseltip(),
}
mode = modes[argv[1]]
f = fontforge.open(argv[2])
mode.modify_font(f)
f.save(argv[3])
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