114 lines
3.3 KiB
C#
114 lines
3.3 KiB
C#
#nullable enable
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using System;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.UIElements;
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namespace UVC.UIToolkit
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{
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/// <summary>
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/// 멀티 컬럼 트리 뷰 컴포넌트.
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/// Unity MultiColumnTreeView를 래핑하여 커스텀 스타일을 적용합니다.
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/// </summary>
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[UxmlElement]
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public partial class UTKMultiColumnTreeView : MultiColumnTreeView, IDisposable
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{
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#region Constants
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private const string USS_PATH = "UIToolkit/List/UTKMultiColumnTreeView";
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#endregion
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#region Fields
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private bool _disposed;
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#endregion
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#region Events
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/// <summary>아이템 선택 이벤트</summary>
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public event Action<int>? OnItemSelected;
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/// <summary>아이템 더블클릭 이벤트</summary>
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public event Action<int>? OnItemDoubleClicked;
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#endregion
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#region Constructor
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public UTKMultiColumnTreeView() : base()
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{
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UTKThemeManager.Instance.ApplyThemeToElement(this);
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var uss = Resources.Load<StyleSheet>(USS_PATH);
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if (uss != null)
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{
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styleSheets.Add(uss);
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}
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SetupStyles();
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SetupEvents();
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SubscribeToThemeChanges();
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}
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#endregion
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#region Setup
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private void SetupStyles()
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{
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AddToClassList("utk-multicolumn-treeview");
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}
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private void SetupEvents()
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{
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selectionChanged += OnSelectionChanged;
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itemsChosen += OnItemsChosen;
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}
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private void SubscribeToThemeChanges()
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{
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UTKThemeManager.Instance.OnThemeChanged += OnThemeChanged;
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RegisterCallback<AttachToPanelEvent>(OnAttachToPanelForTheme);
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RegisterCallback<DetachFromPanelEvent>(OnDetachFromPanelForTheme);
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}
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private void OnAttachToPanelForTheme(AttachToPanelEvent evt)
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{
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UTKThemeManager.Instance.OnThemeChanged -= OnThemeChanged;
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UTKThemeManager.Instance.OnThemeChanged += OnThemeChanged;
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UTKThemeManager.Instance.ApplyThemeToElement(this);
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}
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private void OnDetachFromPanelForTheme(DetachFromPanelEvent evt)
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{
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UTKThemeManager.Instance.OnThemeChanged -= OnThemeChanged;
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}
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private void OnThemeChanged(UTKTheme theme)
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{
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UTKThemeManager.Instance.ApplyThemeToElement(this);
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}
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#endregion
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#region Event Handlers
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private void OnSelectionChanged(IEnumerable<object> items)
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{
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OnItemSelected?.Invoke(selectedIndex);
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}
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private void OnItemsChosen(IEnumerable<object> items)
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{
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OnItemDoubleClicked?.Invoke(selectedIndex);
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}
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#endregion
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#region IDisposable
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public void Dispose()
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{
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if (_disposed) return;
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_disposed = true;
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selectionChanged -= OnSelectionChanged;
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itemsChosen -= OnItemsChosen;
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UTKThemeManager.Instance.OnThemeChanged -= OnThemeChanged;
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UnregisterCallback<AttachToPanelEvent>(OnAttachToPanelForTheme);
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UnregisterCallback<DetachFromPanelEvent>(OnDetachFromPanelForTheme);
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OnItemSelected = null;
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OnItemDoubleClicked = null;
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}
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#endregion
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}
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}
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