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test_pens.py
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import unittest
from random import Random
from coldtype.geometry import Rect, Point
from coldtype.runon.path import P
from coldtype.color import hsl, rgb
from coldtype.pens.drawablepen import DrawablePenMixin
from coldtype.renderer.reader import SourceReader
from coldtype.text.composer import StSt, Font
from coldtype.fx.chainable import Chainable
co = Font.Cacheable("assets/ColdtypeObviously-VF.ttf")
mutator = Font.Cacheable("assets/MutatorSans.ttf")
class TestPens(unittest.TestCase):
def test_gs(self):
r = Rect(0, 0, 100, 100)
dps = P()
dp = (P()
.declare(r:=r)
.m(r.pnw).l(r.pne).bxc(r.psw, "se")
.ep())
self.assertEqual(len(dp.v.value), 4)
self.assertEqual(dp.v.value[-2][-1][0], Point(100, 35))
self.assertEqual(dp.v.value[-1][0], "endPath")
self.assertEqual(dp.unended(), False)
dps.append(P([dp]))
self.assertEqual(len(dps.tree().splitlines()), 4)
self.assertEqual(dps.tree().splitlines()[-1],
" | - <®:P:RecordingPen(4mvs)>")
def test_gs_arrowcluster(self):
r = Rect(100, 100)
dp = (P().m(r.pnw).l(r.pne).l(r.pse).ep())
self.assertEqual(len(dp.v.value), 4)
self.assertEqual(dp.v.value[0][-1][0], Point(0, 100).xy())
self.assertEqual(dp.v.value[1][-1][0], Point(100, 100).xy())
self.assertEqual(dp.v.value[2][-1][0], Point(100, 0).xy())
def test_gs_relative_moves(self):
r = Rect(100, 100)
dp = (P().m(r.pnw).l(r.pnw.o(50,-50)).l(r.pnw.o(0,-50)).ep())
self.assertEqual(len(dp.v.value), 4)
self.assertEqual(dp.v.value[0][-1][0], Point(0, 100).xy())
self.assertEqual(dp.v.value[1][-1][0], Point(50, 50).xy())
self.assertEqual(dp.v.value[2][-1][0], Point(0, 50).xy())
def test_reverse(self):
r = Rect(100, 100)
dp = (P().m(r.pnw).l(r.pne).l(r.pse).ep())
p1 = dp.v.value[0][-1]
p2 = dp.reverse().v.value[-2][-1]
self.assertEqual(p1, p2)
def test_transforms(self):
dp = (P(Rect(100, 100))
.data(frame=Rect(100, 100))
.align(Rect(200, 200)))
self.assertEqual(dp.data("frame").mxx, 150)
self.assertEqual(dp.v.value[-2][-1][-1][0], 50)
self.assertEqual(
dp.copy().rotate(45).round().v.value,
dp.copy().rotate(360+45).round().v.value)
self.assertEqual(dp.copy().scale(2).ambit().w, 200)
def test_pens_ambit(self):
dps = (P([
P(Rect(50, 50)),
P(Rect(100, 100, 100, 100))])
#.print(lambda x: x.tree())
)
ram = dps.ambit()
self.assertEqual(ram, Rect(0, 0, 200, 200))
moves = []
dps.walk(lambda p, pos, _: moves.append([p, pos]))
self.assertEqual(moves[0][0], dps)
self.assertEqual(moves[0][1], -1)
self.assertEqual(moves[1][1], 0)
def test_remove_blanks(self):
dps = (P([
P(Rect(50, 50)),
P()
]))
self.assertEqual(len(dps), 2)
dps.deblank()
self.assertEqual(len(dps), 1)
def test_collapse(self):
rr = Rect(100, 100)
r = P([
P([P([P().rect(rr)])]),
P([P().rect(rr)]),
])
self.assertIsInstance(r[0], P)
self.assertIsInstance(r[0][0], P)
r.collapse()
self.assertIsInstance(r[0], P)
self.assertIsInstance(r[1], P)
r = P([
P([P([P().rect(rr)])]),
P([P().rect(rr)]),
])
r2 = r.copy().collapse()
self.assertEqual(len(r), 2)
self.assertIsInstance(r[0], P)
self.assertIsInstance(r[0][0], P)
self.assertIsInstance(r2[0], P)
self.assertIsInstance(r2[1], P)
r = P([
P([P([P()])]),
P([P()]),
])
r2 = r.copy().collapse()
self.assertEqual(len(r), 2)
self.assertEqual(len(r2), 0)
r = P([
P([P([P()])]),
P([P()]),
])
r2 = r.copy().collapse(deblank=False)
self.assertEqual(len(r), 2)
self.assertEqual(len(r2), 2)
def test_find(self):
dps = P([
P([P([P().tag("find-me").f(hsl(0.9))])]),
P().tag("not-me"),
P([P().tag("find-me").f(hsl(0.3))])])
self.assertEqual(dps.find("find-me")[0].f().h/360, 0.9)
self.assertAlmostEqual(dps.find("find-me")[1].f().h/360, 0.3)
def test_cond(self):
dps = (P([
(P().cond(True,
lambda p: p.f(rgb(1, 0, 0))))]))
self.assertEqual(dps[0].f().r, 1)
def _build(condition):
return (P([
(P().cond(condition,
lambda p: p.f(rgb(0, 0, 1)),
lambda p: p.f(rgb(1, 0, 0))))]))
self.assertEqual(_build(True)[0].f().b, 1)
self.assertEqual(_build(False)[0].f().r, 1)
def test_alpha(self):
dps = (P([
(P([
(P().alpha(0.5))
]).alpha(0.5))
]).alpha(0.25))
def walker(p, pos, data):
if pos == 0:
self.assertEqual(data["alpha"], 0.0625)
elif pos == 1 and data["depth"] == 0:
self.assertEqual(data["alpha"], 0.25)
elif pos == 1 and data["depth"] == 1:
self.assertEqual(data["alpha"], 0.125)
dps.walk(walker)
def test_visibility(self):
dps = (P([
(P([
(P().visible(1).tag("visible")),
(P().visible(0).tag("invisible"))
]))
]))
def walker(p, pos, data):
nonlocal visible_pen_count
if pos == 0:
visible_pen_count += 1
visible_pen_count = 0
dps.walk(walker, visible_only=True)
self.assertEqual(visible_pen_count, 1)
visible_pen_count = 0
dps.walk(walker, visible_only=False)
self.assertEqual(visible_pen_count, 2)
visible_pen_count = 0
dps[0][0].visible(0)
dps.walk(walker, visible_only=True)
self.assertEqual(visible_pen_count, 0)
def test_style(self):
src = """
from coldtype import *
def two_styles(r):
return (P()
.oval(r.inset(50).square())
.f(hsl(0.8))
.attr("alt", fill=hsl(0.3)))
@renderable()
def no_style_set(r):
return two_styles(r)
@renderable(style="alt")
def style_set(r):
return two_styles(r)
def lattr_styles(r):
return (P()
.oval(r.inset(50).square())
.f(hsl(0.5)).s(hsl(0.7)).sw(5)
.lattr("alt", lambda p: p.f(hsl(0.7)).s(hsl(0.5)).sw(15)))
@renderable()
def lattr_no_style(r):
return lattr_styles(r)
@renderable(style="alt")
def lattr_style_set(r):
return lattr_styles(r)
"""
sr = SourceReader(None, code=src)
rs = sr.frame_results(0)
sr.unlink()
self.assertNotEqual(
rs[0][-1].attr(rs[0][0].style, "fill"),
rs[1][-1].attr(rs[1][0].style, "fill"))
self.assertNotEqual(
rs[2][-1].attr(rs[2][0].style, "fill"),
rs[3][-1].attr(rs[3][0].style, "fill"))
self.assertEqual(rs[2][-1].attr(rs[2][0].style, "strokeWidth"), 5)
self.assertEqual(rs[3][-1].attr(rs[3][0].style, "strokeWidth"), 15)
dpm = DrawablePenMixin()
dpm.dat = rs[3][-1]
attrs = [x for _, x in list(dpm.findStyledAttrs(rs[3][0].style))]
self.assertEqual(len(attrs), 2)
self.assertEqual(attrs[1][1].get("weight"), 15)
def test_subsegmenting(self):
f1 = Font.Cacheable("assets/ColdtypeObviously_BlackItalic.ufo")
shape = (StSt("C", f1, 1000, wght=0.5)[0]
.explode()[0])
self.assertAlmostEqual(
shape.length()/2,
shape.copy().subsegment(0, 0.5).length(),
delta=1)
self.assertAlmostEqual(
shape.length(),
shape.copy().subsegment(0, 1).length(),
delta=1)
shape1 = (StSt("D", f1, 1000, wght=0.5)[0]
.explode()[0])
shape2 = shape1.copy().fully_close_path()
self.assertLess(shape1.length(), shape2.length())
self.assertAlmostEqual(
shape2.length()/2,
shape2.copy().subsegment(0, 0.5).length(),
delta=1)
def test_explode(self):
r = Rect(1000, 500)
o1 = (StSt("O", co, 500, wdth=1).pen())
o2 = (StSt("O", co, 500, wdth=1)
.pen()
.explode()
.index(1, lambda p: p.rotate(90))
.implode().f(hsl(0.3)).align(r))
self.assertEqual(
o1.explode()[0].ambit().w,
o2.explode()[0].ambit().w)
self.assertAlmostEqual(
o1.explode()[1].ambit().h,
o2.explode()[1].ambit().w)
def test_scaleToRect(self):
r = Rect(1000, 500)
dps = P([
(StSt("SPACEFILLING", mutator, 50)
.align(r)
.f(hsl(0.8))
.scaleToRect(r.inset(100, 100), False)),
(StSt("SPACEFILLING", mutator, 50)
.align(r)
.f(hsl(0.5))
.scaleToWidth(r.w-20)),
(StSt("SPACEFILLING", mutator, 50)
.align(r)
.f(hsl(0.3))
.scaleToHeight(r.h-50))])
self.assertAlmostEqual(
dps[0].ambit(th=1).w, r.inset(100).w)
self.assertAlmostEqual(
dps[0].ambit(tv=1).h, r.inset(100).h)
self.assertAlmostEqual(
dps[1].ambit(th=1).w, r.w-20)
self.assertAlmostEqual(
dps[2].ambit(tv=1).h, r.h-50)
dps.picklejar(r)
def test_distribute_and_track(self):
dps = P()
rnd = Random(0)
r = Rect(1000, 500)
for _ in range(0, 11):
dps += (P()
.rect(Rect(100, 100))
.f(hsl(rnd.random(), s=0.6))
.rotate(rnd.randint(-45, 45)))
dps = (dps
.distribute()
.track(-50)
.reverse()
.understroke(s=0.2)
.align(r)
)
self.assertEqual(len(dps), 11)
self.assertEqual(dps.ambit(th=1).round().w, 830)
dps.picklejar(r)
def test_track_to_rect(self):
r = Rect(1000, 500)
text = (StSt("COLD", co, 300, wdth=0, r=1)
.align(r)
.track_to_rect(r.inset(50, 0), r=1))
self.assertEqual(text[0].glyphName, "D")
self.assertEqual(text[-1].ambit().round().x, 50)
self.assertEqual(text[0].ambit().round().x, 883)
def test_distribute_oval(self):
r = Rect(1000, 500)
txt = (StSt("COLDTYPE "*7, co, 64,
tu=-50, r=1, ro=1)
.distribute_on_path(P()
.oval(r.inset(50))
.reverse()
.repeat())
.understroke(s=0, sw=5))
txt.picklejar(r)
self.assertEqual(len(txt), 62)
x, y = txt[-1].ambit().xy()
self.assertAlmostEqual(x, 500, 0)
self.assertAlmostEqual(y, 50, 0)
def test_distribute_path_lines(self):
r = Rect(1080, 1080).inset(200)
p = (P()
.moveTo(r.psw)
.lineTo(r.pn)
.lineTo(r.pse)
.endPath())
lockup = (StSt("COLDTYPE",
Font.MutatorSans(), 220, wght=.4, wdth=0.5)
.distribute_on_path(p)
.align(r, tv=1, th=1)
.f(0))
lockup.picklejar(Rect(1080, 1080))
x, y = lockup[3].ambit().xy()
self.assertEqual(lockup[3].glyphName, "D")
self.assertAlmostEqual(x, 454, 0)
self.assertAlmostEqual(y, 690, 0)
x, y = lockup[-1].ambit().xy()
self.assertEqual(lockup[-1].glyphName, "E")
self.assertAlmostEqual(x, 792, 0)
self.assertAlmostEqual(y, 312, 0)
def test_stack(self):
r = Rect(540, 540)
sr = Rect(100, 100)
res = (P([
(P().oval(sr)
.f(hsl(0.5))
.tag("A")),
(P().oval(sr)
.f(hsl(0.7))
.tag("B")),
(P().oval(sr)
.f(hsl(0.9))
.tag("C"))])
.stack(10))
res.picklejar(r)
self.assertEqual(res.find_("C").ambit().y, 0)
self.assertEqual(res.find_("B").ambit().y, 110)
self.assertEqual(res.find_("A").ambit().y, 220)
def test_stack_and_lead(self):
r = Rect(540, 540)
sr = Rect(100, 100)
res = (P([
(P().oval(sr)
.f(hsl(0.5))
.tag("A")),
(P().oval(sr)
.f(hsl(0.7))
.tag("B")),
(P().oval(sr)
.f(hsl(0.9))
.tag("C"))])
.stack(10)
.lead(10))
res.picklejar(r)
self.assertEqual(res.find_("C").ambit().y, 0)
self.assertEqual(res.find_("B").ambit().y, 120)
self.assertEqual(res.find_("A").ambit().y, 240)
def test_chain(self):
def c1(a):
def _c1(p:P):
return [a]
return Chainable(_c1)
def c2(a):
def _c2(p:P):
p.data(hello=a)
return None
return Chainable(_c2)
p1 = P() | c1(1)
self.assertEqual(p1, [1])
p2 = P() | c2("chain")
self.assertTrue(isinstance(p2, P))
self.assertEqual(p2.data("hello"), "chain")
if __name__ == "__main__":
unittest.main()