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XRLib/Assets/Scripts/UVC/UIToolkit/Input/UTKIntegerField.cs

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#nullable enable
using System;
using UnityEngine;
using UnityEngine.UIElements;
namespace UVC.UIToolkit
{
/// <summary>
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/// 정수(int) 입력 필드 컴포넌트.
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/// Unity IntegerField를 래핑하여 커스텀 스타일을 적용합니다.
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/// -2,147,483,648 ~ 2,147,483,647 범위의 정수를 입력받습니다.
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/// </summary>
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/// <remarks>
/// <para><b>int(정수)란?</b></para>
/// <para>int는 32비트 부호 있는 정수 타입으로, 소수점이 없는 숫자를 저장합니다.</para>
/// <list type="bullet">
/// <item><description>개수, 수량, 인덱스 등 정수 값에 사용</description></item>
/// <item><description>큰 숫자가 필요하면 UTKLongField 사용</description></item>
/// <item><description>소수점이 필요하면 UTKFloatField 사용</description></item>
/// </list>
/// </remarks>
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/// <example>
/// <para><b>C# 코드에서 사용:</b></para>
/// <code>
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/// // 기본 정수 필드 생성
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/// var intField = new UTKIntegerField();
/// intField.label = "수량";
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/// intField.Value = 10;
///
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/// // 값 변경 이벤트
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/// intField.OnValueChanged += (value) => {
/// Debug.Log($"수량: {value}");
/// };
///
/// // 라벨과 기본값을 지정하는 생성자
/// var countField = new UTKIntegerField("아이템 개수", 5);
///
/// // 현재 값 읽기/쓰기
/// int currentValue = intField.Value;
/// intField.Value = 20;
///
/// // 비활성화
/// intField.IsEnabled = false;
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/// </code>
/// <para><b>UXML에서 사용:</b></para>
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/// <code><![CDATA[
/// <!-- 기본 정수 필드 -->
/// <utk:UTKIntegerField label="수량" value="10" />
///
/// <!-- 비활성화 상태 -->
/// <utk:UTKIntegerField label="고정 값" value="100" is-enabled="false" />
/// ]]></code>
/// <para><b>실제 활용 예시 (인벤토리 수량):</b></para>
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/// <code>
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/// // 인벤토리 아이템 수량 편집
/// var quantityField = new UTKIntegerField("보유 수량", item.Quantity);
/// quantityField.OnValueChanged += (newQty) => {
/// item.Quantity = Mathf.Max(0, newQty); // 음수 방지
/// UpdateInventoryUI();
/// };
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/// </code>
/// </example>
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[UxmlElement]
public partial class UTKIntegerField : IntegerField, IDisposable
{
#region Constants
private const string USS_PATH = "UIToolkit/Input/UTKIntegerField";
#endregion
#region Fields
private bool _disposed;
private bool _isEnabled = true;
#endregion
#region Events
/// <summary>값 변경 이벤트</summary>
public event Action<int>? OnValueChanged;
#endregion
#region Properties
/// <summary>현재 값</summary>
public int Value
{
get => value;
set => this.value = value;
}
/// <summary>활성화 상태</summary>
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[UxmlAttribute("is-enabled")]
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public bool IsEnabled
{
get => _isEnabled;
set
{
_isEnabled = value;
SetEnabled(value);
EnableInClassList("utk-integer-field--disabled", !value);
}
}
#endregion
#region Constructor
public UTKIntegerField() : base()
{
UTKThemeManager.Instance.ApplyThemeToElement(this);
var uss = Resources.Load<StyleSheet>(USS_PATH);
if (uss != null)
{
styleSheets.Add(uss);
}
SetupStyles();
SetupEvents();
SubscribeToThemeChanges();
}
public UTKIntegerField(string label, int defaultValue = 0) : this()
{
this.label = label;
value = defaultValue;
}
#endregion
#region Setup
private void SetupStyles()
{
AddToClassList("utk-integer-field");
}
private void SetupEvents()
{
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RegisterCallback<ChangeEvent<int>>(OnFieldValueChanged);
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}
private void SubscribeToThemeChanges()
{
UTKThemeManager.Instance.OnThemeChanged += OnThemeChanged;
RegisterCallback<DetachFromPanelEvent>(_ =>
{
UTKThemeManager.Instance.OnThemeChanged -= OnThemeChanged;
});
}
private void OnThemeChanged(UTKTheme theme)
{
UTKThemeManager.Instance.ApplyThemeToElement(this);
}
#endregion
#region Event Handlers
private void OnFieldValueChanged(ChangeEvent<int> evt)
{
OnValueChanged?.Invoke(evt.newValue);
}
#endregion
#region IDisposable
public void Dispose()
{
if (_disposed) return;
_disposed = true;
UTKThemeManager.Instance.OnThemeChanged -= OnThemeChanged;
OnValueChanged = null;
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UnregisterCallback<ChangeEvent<int>>(OnFieldValueChanged);
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}
#endregion
}
}