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-rwxr-xr-xscheme/autoadjust.py98
1 files changed, 69 insertions, 29 deletions
diff --git a/scheme/autoadjust.py b/scheme/autoadjust.py
index 0da2f0b..73deb88 100755
--- a/scheme/autoadjust.py
+++ b/scheme/autoadjust.py
@@ -72,6 +72,8 @@ colour_names = [
"error",
]
+HLS = tuple[float, float, float]
+
def hex_to_rgb(hex: str) -> tuple[float, float, float]:
"""Convert a hex string to an RGB tuple in the range [0, 1]."""
@@ -91,23 +93,29 @@ def hls_to_hex(h: str, l: str, s: str) -> str:
return rgb_to_hex(hls_to_rgb(h, l, s))
-def adjust(hex: str, light: float = 0, sat: float = 0) -> str:
- h, l, s = hex_to_hls(hex)
- return hls_to_hex(h, max(0, min(1, l + light)), max(0, min(1, s + sat)))
+def grayscale(hls: HLS, light: bool) -> HLS:
+ h, l, s = hls
+ return h, 0.5 - l / 2 if light else l / 2 + 0.5, 0
+
+def mix(a: HLS, b: HLS, w: float) -> HLS:
+ h1, l1, s1 = a
+ h2, l2, s2 = b
+ return h1 * (1 - w) + h2 * w, l1 * (1 - w) + l2 * w, s1 * (1 - w) + s2 * w
-def grayscale(hex: str, light: bool) -> str:
- h, l, s = hex_to_hls(hex)
- return hls_to_hex(h, 0.5 - l / 2 if light else l / 2 + 0.5, 0)
+def darken(colour: HLS, amount: float) -> HLS:
+ h, l, s = colour
+ return h, max(0, l - amount), s
-def distance(colour: str, base: str) -> float:
- h1, l1, s1 = hex_to_hls(colour)
+
+def distance(colour: HLS, base: str) -> float:
+ h1, l1, s1 = colour
h2, l2, s2 = hex_to_hls(base)
return abs(h1 - h2) * 0.4 + abs(l1 - l2) * 0.3 + abs(s1 - s2) * 0.3
-def smart_sort(colours: list[str], base: list[str]) -> list[str]:
+def smart_sort(colours: list[HLS], base: list[str]) -> dict[str, HLS]:
sorted_colours = [None] * len(colours)
distances = {}
@@ -130,15 +138,7 @@ def smart_sort(colours: list[str], base: list[str]) -> list[str]:
distances[colour].pop(0)
- return [i[0] for i in sorted_colours]
-
-
-def mix(a: str, b: str, w: float) -> str:
- r1, g1, b1 = hex_to_rgb(a)
- r2, g2, b2 = hex_to_rgb(b)
- return rgb_to_hex(
- (r1 * (1 - w) + r2 * w, g1 * (1 - w) + g2 * w, b1 * (1 - w) + b2 * w)
- )
+ return {colour_names[i]: c[0] for i, c in enumerate(sorted_colours)}
def get_scheme(scheme: str) -> DynamicScheme:
@@ -167,21 +167,61 @@ if __name__ == "__main__":
colours_in = sys.argv[3]
base = light_colours if light else dark_colours
- MatScheme = get_scheme(scheme)
+ chroma_mult = 1.5 if light else 1.2
+
+ # Convert to HLS
+ colours = [hex_to_hls(c) for c in colours_in.split(" ")]
+
+ # Sort colours and turn into dict
+ colours = smart_sort(colours, base)
- colours = smart_sort(colours_in.split(" "), base)
- for i, hex in enumerate(colours):
+ # Adjust colours
+ MatScheme = get_scheme(scheme)
+ for name, hls in colours.items():
if scheme == "monochrome":
- colours[i] = grayscale(hex, light)
+ colours[name] = grayscale(hls, light)
else:
- argb = argb_from_rgb(int(hex[:2], 16), int(hex[2:4], 16), int(hex[4:], 16))
+ argb = int(f"0xFF{hls_to_hex(*hls)}", 16)
mat_scheme = MatScheme(Hct.from_int(argb), not light, 0)
- primary = MaterialDynamicColors.primary.get_hct(mat_scheme)
- colours[i] = "{:02X}{:02X}{:02X}".format(*primary.to_rgba()[:3])
+
+ colour = MaterialDynamicColors.primary.get_hct(mat_scheme)
+
+ # Boost neutral scheme colours
+ if scheme == "neutral":
+ colour.chroma += 10
+
+ colour.chroma *= chroma_mult
+
+ colours[name] = hex_to_hls("{:02X}{:02X}{:02X}".format(*colour.to_rgba()[:3]))
# Success and error colours
- colours.append(mix(colours[8], base[8], 0.8)) # Success (green)
- colours.append(mix(colours[4], base[4], 0.8)) # Error (red)
+ colours["success"] = mix(colours["green"], hex_to_hls(base[8]), 0.8)
+ colours["error"] = mix(colours["red"], hex_to_hls(base[4]), 0.8)
+
+ # Layers and accents
+ material = {}
+ primary_scheme = MatScheme(Hct.from_int(int(f"0xFF{colours_in.split(" ")[0]}", 16)), not light, 0)
+ for colour in vars(MaterialDynamicColors).keys():
+ colour_name = getattr(MaterialDynamicColors, colour)
+ if hasattr(colour_name, "get_hct"):
+ rgb = colour_name.get_hct(primary_scheme).to_rgba()[:3]
+ material[colour] = hex_to_hls("{:02X}{:02X}{:02X}".format(*rgb))
+
+ colours["primary"] = material["primary"]
+ colours["secondary"] = material["secondary"]
+ colours["tertiary"] = material["tertiary"]
+ colours["text"] = material["onBackground"]
+ colours["subtext1"] = material["onSurfaceVariant"]
+ colours["subtext0"] = material["outline"]
+ colours["overlay2"] = mix(material["surface"], material["outline"], 0.86)
+ colours["overlay1"] = mix(material["surface"], material["outline"], 0.71)
+ colours["overlay0"] = mix(material["surface"], material["outline"], 0.57)
+ colours["surface2"] = mix(material["surface"], material["outline"], 0.43)
+ colours["surface1"] = mix(material["surface"], material["outline"], 0.29)
+ colours["surface0"] = mix(material["surface"], material["outline"], 0.14)
+ colours["base"] = material["surface"]
+ colours["mantle"] = darken(material["surface"], 0.03)
+ colours["crust"] = darken(material["surface"], 0.05)
- for i, colour in enumerate(colours):
- print(f"{colour_names[i]} {colour}")
+ for name, colour in colours.items():
+ print(f"{name} {hls_to_hex(*colour)}")