57 lines
1.5 KiB
C#
57 lines
1.5 KiB
C#
// Copyright (c) 2012-2024 Wojciech Figat. All rights reserved.
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using System;
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using System.Collections.Generic;
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using FlaxEditor.SceneGraph;
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namespace FlaxEditor.Utilities
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{
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/// <summary>
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/// Helper utility object that caches the selection of the editor and can restore it later. Works only for objects of <see cref="FlaxEngine.Object"/> type.
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/// </summary>
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public sealed class SelectionCache
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{
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private readonly List<Guid> _objects = new List<Guid>();
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/// <summary>
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/// Caches selection.
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/// </summary>
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public void Cache()
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{
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_objects.Clear();
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var selection = Editor.Instance.SceneEditing.Selection;
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for (int i = 0; i < selection.Count; i++)
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{
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_objects.Add(selection[i].ID);
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}
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}
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/// <summary>
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/// Restores selection.
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/// </summary>
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public void Restore()
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{
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if (_objects.Count == 0)
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{
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Editor.Instance.SceneEditing.Deselect();
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return;
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}
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var selection = new List<SceneGraph.SceneGraphNode>(_objects.Count);
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for (int i = 0; i < _objects.Count; i++)
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{
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var id = _objects[i];
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var node = SceneGraphFactory.FindNode(id);
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if (node != null)
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selection.Add(node);
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}
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_objects.Clear();
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Editor.Instance.SceneEditing.Select(selection);
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}
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}
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}
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