98 lines
2.7 KiB
C#
98 lines
2.7 KiB
C#
// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
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using System.IO;
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using FlaxEngine;
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namespace FlaxEditor.GUI.Timeline.Undo
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{
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class AddRemoveTrackAction : IUndoAction
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{
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private Timeline _timeline;
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private bool _isAdd;
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private TrackCreateOptions _options;
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private Color _color;
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private byte[] _data;
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private string _name;
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private string _parentName;
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private int _order;
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private bool _expanded;
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public AddRemoveTrackAction(Timeline timeline, Track track, bool isAdd)
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{
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_timeline = timeline;
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_isAdd = isAdd;
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_options = new TrackCreateOptions
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{
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Archetype = track.Archetype,
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Loop = track.Loop,
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Mute = track.Mute,
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};
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_color = track.Color;
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_name = track.Name;
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_parentName = track.ParentTrack?.Name;
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_order = track.TrackIndex;
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_expanded = track.IsExpanded;
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using (var memory = new MemoryStream(512))
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using (var stream = new BinaryWriter(memory))
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{
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_options.Archetype.Save(track, stream);
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_data = memory.ToArray();
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}
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}
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private void Add()
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{
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var track = _timeline.FindTrack(_name);
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if (track != null)
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return;
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track = _options.Archetype.Create(_options);
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track.Name = _name;
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track.Color = _color;
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track.IsExpanded = _expanded;
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using (var memory = new MemoryStream(_data))
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using (var stream = new BinaryReader(memory))
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{
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track.Archetype.Load(Timeline.FormatVersion, track, stream);
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}
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if (_parentName != null)
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track.ParentTrack = _timeline.FindTrack(_parentName);
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_timeline.AddTrack(track, false);
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track.TrackIndex = _order;
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_timeline.OnTracksOrderChanged();
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}
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private void Remove()
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{
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var track = _timeline.FindTrack(_name);
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_timeline.Delete(track, false);
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}
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public string ActionString => _isAdd ? "Add track" : "Remove track";
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public void Do()
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{
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if (_isAdd)
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Add();
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else
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Remove();
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}
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public void Undo()
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{
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if (_isAdd)
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Remove();
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else
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Add();
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}
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public void Dispose()
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{
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_options = new TrackCreateOptions();
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_timeline = null;
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_data = null;
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_name = null;
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_parentName = null;
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}
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}
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}
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