3dtours
b42190e6bc
- PianoRollTabService: getParentTrackByItemId, buildActiveScope, getTrackMidiChannel helpers - parent_track_id on all MIDI items for reverse track lookup - handleSwitchMidiItem uses active_scope pattern - Toolbar shows parent track context labels - Channel assignment simplified to trackIndex % 16 - All playNote calls use unified getTrackMidiChannel
44 lines
1.7 KiB
JavaScript
44 lines
1.7 KiB
JavaScript
(function () {
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'use strict';
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window.SonicPianoRoll = {
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getParentTrackByItemId: function (itemId, tracks) {
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if (!tracks || !itemId) return null;
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for (var i = 0; i < tracks.length; i++) {
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var items = tracks[i].midiItems || [];
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for (var j = 0; j < items.length; j++) {
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if (items[j].id === itemId) return tracks[i];
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}
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}
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return null;
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},
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getParentTrackIdByItemId: function (itemId, tracks) {
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var trk = this.getParentTrackByItemId(itemId, tracks);
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return trk ? trk.id : null;
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},
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buildActiveScope: function (itemId, tracks) {
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var parentTrack = this.getParentTrackByItemId(itemId, tracks);
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if (!parentTrack) return null;
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var trackIndex = -1;
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for (var i = 0; i < tracks.length; i++) {
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if (tracks[i].id === parentTrack.id) { trackIndex = i; break; }
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}
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return {
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item_id: itemId,
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parent_track_id: parentTrack.id,
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midi_channel: trackIndex >= 0 ? trackIndex % 16 : 0,
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current_synth_engine: parentTrack.synth_engine || null,
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instrument_program: parentTrack.instrumentProgram,
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instrument_name: parentTrack.instrumentName
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};
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},
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getTrackMidiChannel: function (track, tracks) {
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if (track && track.midiChannel !== undefined) return track.midiChannel;
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if (!track || !tracks) return 0;
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for (var i = 0; i < tracks.length; i++) {
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if (tracks[i].id === track.id) return i % 16;
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}
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return 0;
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}
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};
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})();
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