wehub-resource-sync
140 lines
4.2 KiB
C#
140 lines
4.2 KiB
C#
#nullable enable
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using T3.Core.Animation;
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using T3.Core.Operator;
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using T3.Editor.UiModel.ProjectHandling;
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using T3.Editor.UiModel.Selection;
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namespace T3.Editor.Gui.Windows.TimeLine.TimeClips;
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/// <summary>
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/// Maps selection of <see cref="TimeClip"/>s
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/// to <see cref="NodeSelection"/> with <see cref="ISelectableCanvasObject"/>s.
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/// </summary>
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internal sealed class ClipSelection
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{
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public ClipSelection(NodeSelection nodeSelection)
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{
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_nodeSelection = nodeSelection;
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}
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public HashSet<Guid> SelectedClipsIds { get; } = new(100);
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public int Count => SelectedClipsIds.Count;
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public IReadOnlyCollection<Guid> AllOrSelectedClipIds => SelectedClipsIds.Count > 0 ? SelectedClipsIds : AllClipIds;
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public IReadOnlyCollection<Guid> AllClipIds => CompositionTimeClips.Keys;
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public IEnumerable<TimeClip> GetAllOrSelectedClips()
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{
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if (SelectedClipsIds.Count == 0)
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{
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foreach (var clip in CompositionTimeClips.Values)
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{
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yield return clip;
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}
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yield break;
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}
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foreach (var id in SelectedClipsIds)
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{
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// A selected id can briefly outlive its clip (e.g. right after a cut replaces it), so skip
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// stale selections rather than throwing KeyNotFoundException.
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if (CompositionTimeClips.TryGetValue(id, out var clip))
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yield return clip;
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}
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}
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public IEnumerable<TimeClip> GetSelectedClips()
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{
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foreach (var id in SelectedClipsIds)
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{
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// A selected id can briefly outlive its clip (e.g. right after a cut replaces it), so skip
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// stale selections rather than throwing KeyNotFoundException.
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if (CompositionTimeClips.TryGetValue(id, out var clip))
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yield return clip;
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}
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}
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public void UpdateForComposition(Instance compositionOp)
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{
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_compositionOp = compositionOp;
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CompositionTimeClips.Clear();
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foreach (var s2 in Structure.GetAllTimeClips(compositionOp))
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{
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CompositionTimeClips[s2.Id] = s2;
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}
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// TODO: It's unfortunate that Selection is a list makes access slow
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SelectedClipsIds.Clear();
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foreach (var selectedGraphNode in _nodeSelection.Selection)
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{
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if (CompositionTimeClips.TryGetValue(selectedGraphNode.Id, out var selectedTimeClip))
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{
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if (!SelectedClipsIds.Add(selectedTimeClip.Id))
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{
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Log.Warning($"Clip {selectedTimeClip.Id} selected twice?");
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}
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}
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}
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}
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public void Clear()
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{
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if (_compositionOp == null)
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return;
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foreach (var id in SelectedClipsIds)
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{
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_nodeSelection.DeselectCompositionChild(_compositionOp, id);
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}
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SelectedClipsIds.Clear();
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}
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public void Select(TimeClip timeClip)
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{
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if (_compositionOp == null)
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return;
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_nodeSelection.Clear();
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_nodeSelection.TrySelectCompositionChild(_compositionOp, timeClip.Id);
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SelectedClipsIds.Clear();
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SelectedClipsIds.Add(timeClip.Id);
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}
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public void Deselect(TimeClip timeClip)
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{
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if (_compositionOp == null)
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return;
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_nodeSelection.DeselectCompositionChild(_compositionOp, timeClip.Id);
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SelectedClipsIds.Remove(timeClip.Id);
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}
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public void AddSelection(TimeClip matchingClip)
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{
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if (_compositionOp == null)
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return;
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_nodeSelection.TrySelectCompositionChild(_compositionOp, matchingClip.Id);
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SelectedClipsIds.Add(matchingClip.Id);
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}
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public bool Contains(TimeClip clip)
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{
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return SelectedClipsIds.Contains(clip.Id);
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}
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/// <summary>
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/// Reusing static collections to avoid GC leaks
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/// </summary>
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internal readonly Dictionary<Guid, TimeClip> CompositionTimeClips = new(100);
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private Instance? _compositionOp;
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private readonly NodeSelection _nodeSelection;
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} |