def test_gradient_transformer_with_repeat_truncate_generates_wrapper_receiving_propper_channel(
):
from inspect import signature
sc, sh, sp, gr = screen_shape_sprite()
tr = GradientTransformer(gr, size=10, repeat="truncate", channel="char")
assert "char" in signature(tr.char).parameters
def test_gradient_transformer_works_on_vertical_direction():
sc, sh, sp, gr = screen_shape_sprite()
tr = GradientTransformer(gr, direction=TM.Directions.DOWN)
sp.transformers.append(tr)
sh.draw.line((12, 0), (12, 10))
sc.update()
yield None
assert sc.data[12, 0].foreground == Color((0, 0, 0))
assert sc.data[12, 5].foreground.isclose(Color((.5, .5, .5)), abs_tol=15)
assert sc.data[12, 9].foreground == Color((255, 255, 255))
def test_gradient_transformer_works():
sc, sh, sp, gr = screen_shape_sprite()
tr = GradientTransformer(gr)
sp.transformers.append(tr)
sh.draw.line((0, 5), (26, 5))
sc.update()
yield None
assert sc.data[0, 5].foreground == Color((0, 0, 0))
assert sc.data[12, 5].foreground.isclose(Color((.5, .5, .5)), abs_tol=10)
assert sc.data[25, 5].foreground == Color((255, 255, 255))
def test_gradient_transformer_with_horizontal_size_and_direction_left():
sc, sh, sp, gr = screen_shape_sprite()
tr = GradientTransformer(gr, direction=TM.Directions.LEFT, size=10)
sp.transformers.append(tr)
sh.draw.line((0, 5), (26, 5))
sc.update()
yield None
assert sc.data[0, 5].foreground == Color((255, 255, 255))
assert sc.data[5, 5].foreground.isclose(Color((.5, .5, .5)), abs_tol=15)
assert sc.data[9, 5].foreground == Color((0, 0, 0))
assert sc.data[10, 5].foreground == Color((255, 255, 255))
def test_gradient_transformer_with_horizontal_size_with_repeat_none_and_offset():
sc, sh, sp, gr = screen_shape_sprite()
tr = GradientTransformer(gr, size=10, repeat="none", offset=5)
sp.transformers.append(tr)
sh.draw.line((0,5), (26, 5))
sc.update()
yield None
assert sc.data[0, 5].foreground == Color((0, 0, 0))
assert sc.data[4, 5].foreground == Color((0, 0, 0))
assert sc.data[14,5].foreground == Color((255, 255, 255))
assert sc.data[19, 5].foreground == Color((255, 255, 255))
def test_gradient_transformer_with_horizontal_size_and_repeat_triangle():
sc, sh, sp, gr = screen_shape_sprite()
tr = GradientTransformer(gr, size=10, repeat="triangle")
sp.transformers.append(tr)
sh.draw.line((0, 5), (26, 5))
sc.update()
yield None
assert sc.data[0, 5].foreground == Color((0, 0, 0))
assert sc.data[5, 5].foreground.isclose(Color((.5, .5, .5)), abs_tol=15)
assert sc.data[9, 5].foreground == Color((255, 255, 255))
assert sc.data[10, 5].foreground == Color((255, 255, 255))
assert sc.data[19, 5].foreground == Color((0, 0, 0))
assert sc.data[25, 5].foreground.isclose(Color((.5, .5, .5)), abs_tol=15)
def test_gradient_transformer_works_with_text_channel():
sc, sh, sp, gr = screen_shape_sprite()
class CharGradient:
def __getitem__(self, pos):
pos = int(pos * 25)
return string.ascii_uppercase[pos]
tr = GradientTransformer(CharGradient(), channel="char")
sp.transformers.append(tr)
sh.draw.line((0, 5), (26, 5), char="*", color=(255, 0, 0))
sc.update()
yield None
assert sc.data[0, 5].foreground == Color((255, 0, 0))
assert sc.data[0, 5].value == "A"
assert sc.data[12, 5].value == "M"
assert sc.data[25, 5].value == "Z"
import terminedia as TM
from terminedia.transformers import GradientTransformer
sc = TM.Screen()
a = TM.shape((40, 4))
a.text[4].at((0, 0), "terminedia")
b = TM.Sprite(a)
b.active = True
sc.data.sprites.append(b)
b.pos = (5, 5)
a.context.transformers.append(
GradientTransformer(
TM.Gradient([(0, "blue"), (0.5, "white"), (1, "blue")]),
TM.Directions.LEFT))
sc.update()
