151 lines
4.0 KiB
C#
151 lines
4.0 KiB
C#
#nullable enable
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using System;
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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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/// Enum 선택 드롭다운 컴포넌트.
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/// Unity EnumField를 래핑하여 커스텀 스타일을 적용합니다.
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/// </summary>
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/// <example>
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/// <para><b>C# 코드에서 사용:</b></para>
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/// <code>
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/// // Enum 정의
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/// public enum MyOption { Option1, Option2, Option3 }
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///
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/// // 기본 Enum 드롭다운
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/// var enumDropdown = new UTKEnumDropDown();
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/// enumDropdown.label = "옵션 선택";
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/// enumDropdown.Init(MyOption.Option1);
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///
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/// // 값 변경 이벤트
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/// enumDropdown.OnValueChanged += (value) => {
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/// Debug.Log($"선택됨: {value}");
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/// };
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///
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/// // 현재 값 가져오기
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/// var current = (MyOption)enumDropdown.Value;
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/// </code>
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/// <para><b>UXML에서 사용:</b></para>
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/// <code>
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/// <ui:UXML xmlns:utk="UVC.UIToolkit">
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/// <!-- UXML에서는 C#에서 Init() 호출 필요 -->
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/// <utk:UTKEnumDropDown name="my-enum" label="옵션" />
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/// </ui:UXML>
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/// </code>
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/// <para><b>UXML 로드 후 초기화:</b></para>
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/// <code>
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/// var enumField = root.Q<UTKEnumDropDown>("my-enum");
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/// enumField.Init(MyOption.Option1);
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/// </code>
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/// </example>
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[UxmlElement]
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public partial class UTKEnumDropDown : EnumField, IDisposable
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{
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#region Constants
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private const string USS_PATH = "UIToolkit/Dropdown/UTKEnumDropDown";
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#endregion
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#region Fields
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private bool _disposed;
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private bool _isEnabled = true;
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#endregion
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#region Events
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/// <summary>값 변경 이벤트</summary>
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public event Action<Enum?>? OnValueChanged;
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#endregion
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#region Properties
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/// <summary>현재 값</summary>
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public Enum? Value
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{
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get => value;
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set => this.value = value;
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}
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/// <summary>활성화 상태</summary>
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[UxmlAttribute]
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public bool IsEnabled
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{
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get => _isEnabled;
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set
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{
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_isEnabled = value;
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SetEnabled(value);
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EnableInClassList("utk-enum-dropdown--disabled", !value);
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}
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}
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#endregion
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#region Constructor
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public UTKEnumDropDown() : 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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public UTKEnumDropDown(string label, Enum defaultValue) : this()
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{
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this.label = label;
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Init(defaultValue);
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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-enum-dropdown");
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}
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private void SetupEvents()
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{
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this.RegisterValueChangedCallback(OnFieldValueChanged);
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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<DetachFromPanelEvent>(_ =>
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{
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UTKThemeManager.Instance.OnThemeChanged -= OnThemeChanged;
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});
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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 OnFieldValueChanged(ChangeEvent<Enum> evt)
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{
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OnValueChanged?.Invoke(evt.newValue);
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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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UTKThemeManager.Instance.OnThemeChanged -= OnThemeChanged;
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OnValueChanged = null;
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}
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#endregion
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}
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}
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