1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
from materialyoucolor.blend import Blend
from materialyoucolor.dynamiccolor.material_dynamic_colors import (
DynamicScheme,
MaterialDynamicColors,
)
from materialyoucolor.hct import Hct
from materialyoucolor.hct.cam16 import Cam16
from materialyoucolor.scheme.scheme_content import SchemeContent
from materialyoucolor.scheme.scheme_expressive import SchemeExpressive
from materialyoucolor.scheme.scheme_fidelity import SchemeFidelity
from materialyoucolor.scheme.scheme_fruit_salad import SchemeFruitSalad
from materialyoucolor.scheme.scheme_monochrome import SchemeMonochrome
from materialyoucolor.scheme.scheme_neutral import SchemeNeutral
from materialyoucolor.scheme.scheme_rainbow import SchemeRainbow
from materialyoucolor.scheme.scheme_tonal_spot import SchemeTonalSpot
from materialyoucolor.scheme.scheme_vibrant import SchemeVibrant
def hex_to_hct(hex: str) -> Hct:
return Hct.from_int(int(f"0xFF{hex}", 16))
light_colours = [
hex_to_hct("dc8a78"),
hex_to_hct("dd7878"),
hex_to_hct("ea76cb"),
hex_to_hct("8839ef"),
hex_to_hct("d20f39"),
hex_to_hct("e64553"),
hex_to_hct("fe640b"),
hex_to_hct("df8e1d"),
hex_to_hct("40a02b"),
hex_to_hct("179299"),
hex_to_hct("04a5e5"),
hex_to_hct("209fb5"),
hex_to_hct("1e66f5"),
hex_to_hct("7287fd"),
]
dark_colours = [
hex_to_hct("f5e0dc"),
hex_to_hct("f2cdcd"),
hex_to_hct("f5c2e7"),
hex_to_hct("cba6f7"),
hex_to_hct("f38ba8"),
hex_to_hct("eba0ac"),
hex_to_hct("fab387"),
hex_to_hct("f9e2af"),
hex_to_hct("a6e3a1"),
hex_to_hct("94e2d5"),
hex_to_hct("89dceb"),
hex_to_hct("74c7ec"),
hex_to_hct("89b4fa"),
hex_to_hct("b4befe"),
]
colour_names = [
"rosewater",
"flamingo",
"pink",
"mauve",
"red",
"maroon",
"peach",
"yellow",
"green",
"teal",
"sky",
"sapphire",
"blue",
"lavender",
"success",
"error",
]
def grayscale(colour: Hct, light: bool) -> Hct:
colour = darken(colour, 0.35) if light else lighten(colour, 0.65)
colour.chroma = 0
return colour
def mix(a: Hct, b: Hct, w: float) -> Hct:
return Hct.from_int(Blend.cam16_ucs(a.to_int(), b.to_int(), w))
def harmonize(a: Hct, b: Hct) -> Hct:
return Hct.from_int(Blend.harmonize(a.to_int(), b.to_int()))
def lighten(colour: Hct, amount: float) -> Hct:
diff = (100 - colour.tone) * amount
return Hct.from_hct(colour.hue, colour.chroma + diff / 5, colour.tone + diff)
def darken(colour: Hct, amount: float) -> Hct:
diff = colour.tone * amount
return Hct.from_hct(colour.hue, colour.chroma + diff / 5, colour.tone - diff)
def distance(colour: Cam16, base: Cam16) -> float:
return colour.distance(base)
def smart_sort(colours: list[Hct], base: list[Hct]) -> dict[str, Hct]:
sorted_colours = [None] * len(colours)
distances = {}
cams = [(c, Cam16.from_int(c.to_int())) for c in colours]
base_cams = [Cam16.from_int(c.to_int()) for c in base]
for colour, cam in cams:
dist = [(i, distance(cam, b)) for i, b in enumerate(base_cams)]
dist.sort(key=lambda x: x[1])
distances[colour] = dist
for colour in colours:
while len(distances[colour]) > 0:
i, dist = distances[colour][0]
if sorted_colours[i] is None:
sorted_colours[i] = colour, dist
break
elif sorted_colours[i][1] > dist:
old = sorted_colours[i][0]
sorted_colours[i] = colour, dist
colour = old
distances[colour].pop(0)
return {colour_names[i]: c[0] for i, c in enumerate(sorted_colours)}
def get_scheme(scheme: str) -> DynamicScheme:
if scheme == "content":
return SchemeContent
if scheme == "expressive":
return SchemeExpressive
if scheme == "fidelity":
return SchemeFidelity
if scheme == "fruitsalad":
return SchemeFruitSalad
if scheme == "monochrome":
return SchemeMonochrome
if scheme == "neutral":
return SchemeNeutral
if scheme == "rainbow":
return SchemeRainbow
if scheme == "tonalspot":
return SchemeTonalSpot
return SchemeVibrant
def gen_scheme(scheme, primary: Hct, colours: list[Hct]) -> dict[str, str]:
light = scheme.mode == "light"
base = light_colours if light else dark_colours
# Sort colours and turn into dict
colours = smart_sort(colours, base)
# Harmonize colours
for name, hct in colours.items():
if scheme.variant == "monochrome":
colours[name] = grayscale(hct, light)
else:
harmonized = harmonize(hct, primary)
colours[name] = darken(harmonized, 0.35) if light else lighten(harmonized, 0.65)
# Material colours
primary_scheme = get_scheme(scheme.variant)(primary, not light, 0)
for colour in vars(MaterialDynamicColors).keys():
colour_name = getattr(MaterialDynamicColors, colour)
if hasattr(colour_name, "get_hct"):
colours[colour] = colour_name.get_hct(primary_scheme)
# FIXME: deprecated stuff
colours["text"] = colours["onBackground"]
colours["subtext1"] = colours["onSurfaceVariant"]
colours["subtext0"] = colours["outline"]
colours["overlay2"] = mix(colours["surface"], colours["outline"], 0.86)
colours["overlay1"] = mix(colours["surface"], colours["outline"], 0.71)
colours["overlay0"] = mix(colours["surface"], colours["outline"], 0.57)
colours["surface2"] = mix(colours["surface"], colours["outline"], 0.43)
colours["surface1"] = mix(colours["surface"], colours["outline"], 0.29)
colours["surface0"] = mix(colours["surface"], colours["outline"], 0.14)
colours["base"] = colours["surface"]
colours["mantle"] = darken(colours["surface"], 0.03)
colours["crust"] = darken(colours["surface"], 0.05)
colours["success"] = harmonize(base[8], primary)
# For debugging
# print("\n".join(["{}: \x1b[48;2;{};{};{}m \x1b[0m".format(n, *c.to_rgba()[:3]) for n, c in colours.items()]))
return {k: hex(v.to_int())[4:] for k, v in colours.items()}
|
