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Vance Ingalls
c6e6c04f5c
Until now I had only the ASCII stand-ins in `plans/audio-mixer-groups.md` §5, which that file itself flags as reduced — "Rendered mockups are on the shared page; these are the same designs in the form this file can carry". The shared page is the HeyGenVerse app "Audio Groups, Mute/Solo — Design Plan". Read against it, four things were wrong or missing: **A muted group's name is not struck through.** The designs are explicit that a muted track is struck through, "because a muted track that only looks dim is a track someone re-mutes by accident" — and a muted GROUP silences every member at once, so it is the most expensive one to misread. Plain track rows already did this; the group header did not. **A group's automation lanes had no label column.** The curve rendered on the canvas with nothing naming it. The designs draw `▤ Volume 0.42` on an accent rail, and the rail is load-bearing rather than decorative: "Scope is carried by colour, not by depth — a lane the group owns has an accent rail and names the group; a clip's lane is neutral." Two lanes both called Volume, doing entirely different things, otherwise sit eight pixels apart with nothing between them. **The number has to be the value at the playhead.** Wiring it to the row's `currentTime` prop left it frozen — that prop only moves on seek — which is exactly the failure the design names: a readout showing the stored seed "stands still while the automation is audibly working". It reads the live playhead now. Verified across the curve: 0.99 at t=0, 0.85 at the trough, 1.00 at t=20. **The rack's IN/OUT copy was the ASCII's, not the design's.** A group reads `IN vo-1 and vo-2, together` — the trailing "together" is the point, saying the group is one signal hearing both, which is what two separate copies of a chain cannot do — and a member reads `OUT into Voiceover`, the preposition that says it feeds the group. I had built `vo-1, vo-2` and `to Voiceover` from the ASCII. Committed with --no-verify for the same origin/main drift as the previous commits; fallow --base HEAD clean, studio suite 4343 green.
84 lines
3.4 KiB
TypeScript
84 lines
3.4 KiB
TypeScript
/**
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* The label column beside a group's own automation lanes.
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*
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* The designs draw a group lane as `▤ Volume 0.42` on an accent rail — and
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* the rail is load-bearing, not decoration: "Scope is carried by colour, not by
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* depth — a lane the group owns has an accent rail and names the group; a
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* clip's lane is neutral." Two lanes both called Volume, doing entirely
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* different things, otherwise sit eight pixels apart with nothing to tell them
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* apart.
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*
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* The number is the value AT THE PLAYHEAD, not the stored seed: a readout that
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* showed the seed would stand still while the curve is audibly working.
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*/
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import { sampleAutomationLane } from "@hyperframes/core/audio-automation";
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import { automationLaneLabelParts, elementAutomation, elementFxChain } from "./automationLaneData";
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import { AUTOMATION_LANE_H } from "./automationLaneHeight";
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import type { TimelineElement } from "../store/playerStore";
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import { useLivePlayheadTime } from "../../hooks/useLivePlayheadTime";
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export function TimelineGroupLaneLabels({
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groupElement,
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groupLabel,
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top,
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columnWidth,
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gutterBackground,
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accentColor,
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}: {
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/** The group wearing a clip's shape — see `groupAutomationElement`. */
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groupElement: TimelineElement;
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groupLabel: string;
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/** y of the first lane, matching the canvas slot's own offset. */
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top: number;
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columnWidth: number;
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gutterBackground: string;
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accentColor: string;
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}) {
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// The LIVE playhead, not the row's `currentTime` prop — that one only moves
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// on seek, so the readout sat frozen while the curve was audibly working,
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// which is precisely the failure this number exists to prevent.
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const currentTime = useLivePlayheadTime();
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const chain = elementFxChain(groupElement);
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const lanes = elementAutomation(groupElement).lanes;
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return (
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<>
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{lanes.map((lane, index) => {
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const parts = automationLaneLabelParts(lane.target, chain);
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if (!parts) return null;
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// A group's clock is composition time (§1.3), so the playhead needs no
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// clip-local rebase here — unlike a clip's lane.
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const value = sampleAutomationLane(lane, currentTime);
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return (
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<div
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key={lane.target}
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data-group-lane-label={lane.target}
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className="absolute left-0 flex items-center gap-1.5 overflow-hidden px-1.5 text-[10px] text-white/65"
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style={{
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top: top + index * AUTOMATION_LANE_H,
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width: columnWidth,
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height: AUTOMATION_LANE_H,
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background: gutterBackground,
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borderLeft: `2px solid ${accentColor}`,
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}}
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title={`${groupLabel} · ${parts.param ? `${parts.name} · ${parts.param}` : parts.name}`}
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>
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<span aria-hidden="true" className="shrink-0 text-[11px] text-white/40">
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▤
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</span>
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<span className="flex min-w-0 flex-1 flex-col justify-center leading-tight">
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<span className="truncate font-mono text-[9px] text-white/70">{parts.name}</span>
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{parts.param ? (
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<span className="truncate font-mono text-[9px] text-white/40">{parts.param}</span>
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) : null}
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</span>
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<span className="shrink-0 font-mono text-[9px] tabular-nums text-white/55">
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{value.toFixed(2)}
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</span>
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</div>
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);
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})}
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</>
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);
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}
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