daniel
b2f6b3f1d0
Every opener ends the span first, so a tag fired mid-drain no longer hijacks the switch's point. One stated criterion governs both lane sites; no-op actions discard.
52 lines
2.5 KiB
C++
52 lines
2.5 KiB
C++
#pragma once
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// Managed fixed lanes, REAPER side: minting one lane per mode on a track whose own
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// content spans modes, driving the active mode's lane audible and every other
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// managed lane silent+hidden, and recovering ownership from the durable P_LANENAME
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// on project open. Manual lanes are never minted, driven, renamed or reassigned.
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#include <vector>
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#include "core/view/view_mode_model.h"
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#include "shell/view/view_tracks.h"
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// Forward-declared to keep this header SDK-free; the .cpp includes the real SDK header.
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class ReaProject;
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namespace reasampler {
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// `freeMode` alone decides whether UpdateTimeline is owed (SDK: required after an
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// I_FREEMODE change); `wrote` is a REAPER write, the reading ModeApplyResult
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// (view.h) carries through to the caller's undo-point decision.
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struct LaneApplyResult {
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bool freeMode = false;
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bool wrote = false;
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};
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// Reconciles each op's durable laneKey to the track's current ordinal (a
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// stale/renamed/deleted key is pruned, never mis-driven) and drives C_LANEPLAYS.
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//
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// Opens NO undo block, where mintManagedLanes below opens one over the same
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// parameters — the one criterion this directory's CLAUDE.md states, applied: this
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// re-asserts derived state the view model recomputes from membership on every apply,
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// so nothing here needs to survive as a point of its own; minting creates lanes and
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// re-homes items, which no re-derivation reproduces.
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LaneApplyResult applyLaneOps(const TrackByGuid& handleByGuid,
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const std::vector<LanePlayOp>& lanes);
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// Splits any track visible in more than one mode while carrying its own media into
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// fixed lanes (one managed lane per involved mode), assigns items, and records
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// ownership in `model`. Wraps the mutation in one Undo block when non-empty — see
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// applyLaneOps above for why this site opens one and that one does not — and ENDS THE
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// RECLAIM SPAN first, since REAPER's blocks are a depth counter and this is reachable
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// from a timer tick with a prior switch's span still open. Returns true if any lane
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// was minted (repaint hint). `proj` == nullptr means the current project.
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bool mintManagedLanes(ViewModeModel& model, ReaProject* proj);
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// Recovers managed-lane ownership from durable P_LANENAME on project open —
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// self-healing, without minting/reassigning anything and without touching
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// membership. A lane without the managed prefix is left untouched (manual).
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// `proj` == nullptr means the current project.
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void reconcileManagedLanes(ViewModeModel& model, ReaProject* proj);
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} // namespace reasampler
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