diff --git a/Source/Editor/GUI/Timeline/Timeline.cs b/Source/Editor/GUI/Timeline/Timeline.cs index 1fb19e9ec..861bd7e44 100644 --- a/Source/Editor/GUI/Timeline/Timeline.cs +++ b/Source/Editor/GUI/Timeline/Timeline.cs @@ -229,6 +229,7 @@ namespace FlaxEditor.GUI.Timeline private List _mediaMoveStartTracks; private byte[][] _mediaMoveStartData; private float _zoom = 1.0f; + private float _tracksVScrollTarget; private bool _isMovingPositionHandle; private bool _canPlayPause = true, _canStop = true; private List _batchedUndoActions; @@ -1301,10 +1302,13 @@ namespace FlaxEditor.GUI.Timeline if (track.ParentTrack != null) OnTracksOrderChanged(); track.OnSpawned(); - _tracksPanelArea.ScrollViewTo(track); MarkAsEdited(); if (withUndo) Undo?.AddAction(new AddRemoveTrackAction(this, track, true)); + + // Scroll to track + _tracksPanelArea.ScrollViewTo(track); + _tracksVScrollTarget = _tracksPanelArea.VScrollBar.TargetValue; } /// @@ -2033,12 +2037,24 @@ namespace FlaxEditor.GUI.Timeline base.Update(deltaTime); // Synchronize scroll vertical bars for tracks and media panels to keep the view in sync - var scroll1 = _tracksPanelArea.VScrollBar; - var scroll2 = _backgroundArea.VScrollBar; - if (scroll1.IsThumbClicked || _tracksPanelArea.IsMouseOver) - scroll2.TargetValue = scroll1.Value; + var tracksVScroll = _tracksPanelArea.VScrollBar; + var backgroundVScroll = _backgroundArea.VScrollBar; + bool forceBackgroundToTracksScroll = _tracksVScrollTarget > 0; + if (forceBackgroundToTracksScroll) + { + backgroundVScroll.TargetValue = tracksVScroll.Value; + + if (Mathf.Abs(tracksVScroll.Value - _tracksVScrollTarget) < 0.5f) + _tracksVScrollTarget = 0f; + } + else if (tracksVScroll.IsThumbClicked || _tracksPanelArea.IsMouseOver) + { + backgroundVScroll.TargetValue = tracksVScroll.Value; + } else - scroll1.TargetValue = scroll2.Value; + { + tracksVScroll.TargetValue = backgroundVScroll.Value; + } // Batch undo actions if (_batchedUndoActions != null && _batchedUndoActions.Count != 0)