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Wojtek Figat
244
Source/Editor/Tools/Foliage/EditTab.cs
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244
Source/Editor/Tools/Foliage/EditTab.cs
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// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
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using System;
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using FlaxEditor.CustomEditors;
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using FlaxEditor.CustomEditors.Editors;
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using FlaxEditor.GUI.Tabs;
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using FlaxEditor.Tools.Foliage.Undo;
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using FlaxEngine;
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using FlaxEngine.GUI;
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// ReSharper disable UnusedMember.Local
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namespace FlaxEditor.Tools.Foliage
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{
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/// <summary>
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/// Foliage instances editor tab. Allows to pick and edit a single foliage instance properties.
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/// </summary>
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/// <seealso cref="GUI.Tabs.Tab" />
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public class EditTab : Tab
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{
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/// <summary>
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/// The object for foliage settings adjusting via Custom Editor.
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/// </summary>
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[CustomEditor(typeof(ProxyObjectEditor))]
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private sealed class ProxyObject
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{
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/// <summary>
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/// The gizmo mode.
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/// </summary>
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[HideInEditor]
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public readonly EditFoliageGizmoMode Mode;
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/// <summary>
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/// The selected foliage actor.
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/// </summary>
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[HideInEditor]
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public FlaxEngine.Foliage Foliage;
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/// <summary>
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/// The selected foliage instance index.
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/// </summary>
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[HideInEditor]
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public int InstanceIndex;
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/// <summary>
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/// Initializes a new instance of the <see cref="ProxyObject"/> class.
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/// </summary>
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/// <param name="mode">The foliage editing gizmo mode.</param>
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public ProxyObject(EditFoliageGizmoMode mode)
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{
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Mode = mode;
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InstanceIndex = -1;
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}
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private FoliageInstance _instance;
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public void SyncOptions()
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{
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if (Foliage != null && InstanceIndex > -1 && InstanceIndex < Foliage.InstancesCount)
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{
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_instance = Foliage.GetInstance(InstanceIndex);
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}
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}
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public void SetOptions()
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{
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if (Foliage != null && InstanceIndex > -1 && InstanceIndex < Foliage.InstancesCount)
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{
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Foliage.SetInstanceTransform(InstanceIndex, ref _instance.Transform);
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Foliage.RebuildClusters();
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}
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}
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//
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[EditorOrder(-10), EditorDisplay("Instance"), ReadOnly, Tooltip("The foliage instance zero-based index (read-only).")]
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public int Index
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{
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get => InstanceIndex;
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set => throw new Exception();
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}
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[EditorOrder(0), EditorDisplay("Instance"), ReadOnly, Tooltip("The foliage instance model (read-only).")]
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public Model Model
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{
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get => _instance.Type >= 0 && _instance.Type < Foliage.InstancesCount ? Foliage.GetFoliageType(_instance.Type).Model : null;
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set => throw new Exception();
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}
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[EditorOrder(10), EditorDisplay("Instance"), Tooltip("The local-space position of the mesh relative to the foliage actor.")]
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public Vector3 Position
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{
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get => _instance.Transform.Translation;
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set
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{
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_instance.Transform.Translation = value;
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SetOptions();
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}
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}
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[EditorOrder(20), EditorDisplay("Instance"), Tooltip("The local-space rotation of the mesh relative to the foliage actor.")]
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public Quaternion Rotation
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{
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get => _instance.Transform.Orientation;
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set
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{
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_instance.Transform.Orientation = value;
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SetOptions();
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}
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}
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[EditorOrder(30), EditorDisplay("Instance"), Tooltip("The local-space scale of the mesh relative to the foliage actor.")]
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public Vector3 Scale
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{
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get => _instance.Transform.Scale;
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set
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{
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_instance.Transform.Scale = value;
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SetOptions();
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}
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}
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}
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/// <summary>
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/// The custom editor for <see cref="ProxyObject"/>.
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/// </summary>
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/// <seealso cref="FlaxEditor.CustomEditors.Editors.GenericEditor" />
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private sealed class ProxyObjectEditor : GenericEditor
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{
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/// <inheritdoc />
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public override void Initialize(LayoutElementsContainer layout)
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{
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base.Initialize(layout);
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var proxyObject = (ProxyObject)Values[0];
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if (proxyObject.InstanceIndex != -1)
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{
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var area = layout.Space(32);
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var button = new Button(4, 6, 100)
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{
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Text = "Delete",
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TooltipText = "Removes the selected foliage instance",
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Parent = area.ContainerControl
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};
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button.Clicked += OnDeleteButtonClicked;
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}
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}
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private void OnDeleteButtonClicked()
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{
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var proxyObject = (ProxyObject)Values[0];
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var mode = proxyObject.Mode;
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var foliage = mode.SelectedFoliage;
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if (!foliage)
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throw new InvalidOperationException("No foliage selected.");
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var instanceIndex = mode.SelectedInstanceIndex;
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if (instanceIndex < 0 || instanceIndex >= foliage.InstancesCount)
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throw new InvalidOperationException("No foliage instance selected.");
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// Delete instance and deselect it
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var action = new DeleteInstanceAction(foliage, instanceIndex);
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action.Do();
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Editor.Instance.Undo?.AddAction(new MultiUndoAction(action, new EditSelectedInstanceIndexAction(instanceIndex, -1)));
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mode.SelectedInstanceIndex = -1;
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}
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/// <inheritdoc />
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public override void Refresh()
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{
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// Sync selected foliage options once before update to prevent too many data copies when fetching data from UI properties accessors
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var proxyObject = (ProxyObject)Values[0];
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proxyObject.SyncOptions();
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base.Refresh();
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}
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}
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private readonly ProxyObject _proxy;
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private readonly CustomEditorPresenter _presenter;
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/// <summary>
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/// The parent foliage tab.
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/// </summary>
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public readonly FoliageTab Tab;
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/// <summary>
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/// The related gizmo mode.
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/// </summary>
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public readonly EditFoliageGizmoMode Mode;
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/// <summary>
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/// Initializes a new instance of the <see cref="EditTab"/> class.
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/// </summary>
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/// <param name="tab">The parent tab.</param>
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/// <param name="mode">The related gizmo mode.</param>
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public EditTab(FoliageTab tab, EditFoliageGizmoMode mode)
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: base("Edit")
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{
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Mode = mode;
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Tab = tab;
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Tab.SelectedFoliageChanged += OnSelectedFoliageChanged;
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mode.SelectedInstanceIndexChanged += OnSelectedInstanceIndexChanged;
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_proxy = new ProxyObject(mode);
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// Main panel
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var panel = new Panel(ScrollBars.Vertical)
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{
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AnchorPreset = AnchorPresets.StretchAll,
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Offsets = Margin.Zero,
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Parent = this
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};
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// Options editor
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var editor = new CustomEditorPresenter(tab.Editor.Undo, "No foliage instance selected");
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editor.Panel.Parent = panel;
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editor.Modified += OnModified;
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_presenter = editor;
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}
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private void OnSelectedInstanceIndexChanged()
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{
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_proxy.InstanceIndex = Mode.SelectedInstanceIndex;
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if (_proxy.InstanceIndex == -1)
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{
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_presenter.Deselect();
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}
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else
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{
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_presenter.Select(_proxy);
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}
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}
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private void OnModified()
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{
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Editor.Instance.Scene.MarkSceneEdited(_proxy.Foliage?.Scene);
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}
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private void OnSelectedFoliageChanged()
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{
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Mode.SelectedInstanceIndex = -1;
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_proxy.Foliage = Tab.SelectedFoliage;
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}
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}
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}
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