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Krzysztof kuhy Rudnicki
68ec316b28
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LockConfig was one 35-field record: the lock's behaviour, the grab policy, nine colours, a type scale and a spacing scale, flat. It is now the seven behavioural knobs plus four nested records -- GrabPolicy(kind, disable_vt, retry_ms, log_every, preempt_weaker_holder), LockPalette, LockTypography and LockSpacing -- each overridden as a unit. Breaking for every constructor that passed grab=/disable_vt=/ grab_retry_ms=/preempt_weaker_holder= or a colour, and for every read of config.<colour>; hence the minor bump. screen-locker, leetcode-guard and diet-guard follow in their own commits. The two fail-open guards in the recovery loop carry per-line suppressions: catching everything is the property they exist for, and the check stays live for the next careless except. That was the last finding, so the gate now says 10. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HHCbkJWXHjtTUaqvnHRAqA
49 lines
1.9 KiB
Python
49 lines
1.9 KiB
Python
# Copyright (c) 2026 Krzysztof Rudnicki
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"""Colour derivation for the shared widgets: hover blends and variant fills.
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Split from ``widgets.py`` (250-line cap). The seam is deliberate rather than
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arbitrary: everything here is pure colour arithmetic over ``LockConfig``, with
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no ``tkinter`` import and no widget construction, so it is testable without a
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display. ``widgets.py`` keeps the Tk-facing half and re-exports these names,
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because :mod:`gatelock.widgets` is the public surface the gate apps import.
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"""
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from __future__ import annotations
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from typing import TYPE_CHECKING, Literal
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if TYPE_CHECKING:
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from gatelock._window import LockConfig
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ButtonVariant = Literal["primary", "secondary", "danger"]
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"""Emphasis role for :func:`gatelock.widgets.make_button`, not a colour."""
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# Blend fraction toward white for a button's hover/active fill.
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_HOVER_LIGHTEN = 0.12
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_HEX_CHANNEL_OFFSETS = (1, 3, 5)
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_RGB_MAX = 255
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def _lighten(hex_color: str, amount: float = _HOVER_LIGHTEN) -> str:
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"""Blend ``hex_color`` toward white by ``amount``, for a hover state."""
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channels = (
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int(hex_color[offset : offset + 2], 16) for offset in _HEX_CHANNEL_OFFSETS
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)
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return "#" + "".join(
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f"{round(channel + (_RGB_MAX - channel) * amount):02x}" for channel in channels
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)
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def _button_fills(config: LockConfig) -> dict[ButtonVariant, tuple[str, str]]:
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"""Return the fill/text pair for each variant, read from the palette.
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All three pairs use ``on_fill`` (never ``fg``) for text drawn on a filled
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surface, per tokens.md -- which is the whole point of keying off a
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variant instead of letting each call site invent its own hex pair.
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"""
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return {
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"primary": (config.palette.accent, config.palette.on_fill),
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"secondary": (config.palette.field_bg, config.palette.fg),
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"danger": (config.palette.danger, config.palette.on_fill),
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}
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