wehub-resource-sync
39 lines
1.3 KiB
C#
39 lines
1.3 KiB
C#
#nullable enable
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using T3.Editor.Gui.Windows.TimeLine;
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namespace T3.Editor.UiModel.Commands.Animation;
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/// <summary>
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/// Snapshots and restores the TimeWarp-handle positions held by a <see cref="TimeWarpHandleSet"/>
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/// so undo/redo of a drag interaction that moves handles also restores their locations.
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/// Creating or toggling handles is not captured (by design).
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/// </summary>
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internal sealed class SetTimeWarpHandlesCommand : ICommand
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{
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public string Name => "TimeWarp handles";
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public bool IsUndoable => true;
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private readonly TimeWarpHandleSet _handles;
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private readonly double[] _oldHandles;
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private double[] _newHandles;
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internal SetTimeWarpHandlesCommand(TimeWarpHandleSet handles, IReadOnlyList<double> initialHandles)
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{
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_handles = handles;
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_oldHandles = new double[initialHandles.Count];
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for (var i = 0; i < initialHandles.Count; i++)
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_oldHandles[i] = initialHandles[i];
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_newHandles = _oldHandles;
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}
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internal void StoreCurrentValues(TimeWarpHandleSet handles)
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{
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_newHandles = new double[handles.Count];
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for (var i = 0; i < handles.Count; i++)
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_newHandles[i] = handles[i];
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}
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public void Undo() => _handles.RestoreFromSnapshot(_oldHandles);
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public void Do() => _handles.RestoreFromSnapshot(_newHandles);
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}
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