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peng-zhihui
100 lines
2.2 KiB
C#
100 lines
2.2 KiB
C#
namespace UIWidgets.Examples
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{
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using System;
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using UIWidgets;
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using UnityEngine;
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using UnityEngine.Serialization;
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using UnityEngine.UI;
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/// <summary>
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/// CenteredSlider with label.
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/// </summary>
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[RequireComponent(typeof(CenteredSlider))]
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public class CenteredSliderLabel : MonoBehaviour, IUpgradeable
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{
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/// <summary>
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/// Label to display slider value.
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/// </summary>
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[SerializeField]
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[FormerlySerializedAs("label")]
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[HideInInspector]
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[Obsolete("Replaced with LabelAdapter.")]
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protected Text Label;
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/// <summary>
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/// Label to display slider value.
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/// </summary>
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[SerializeField]
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protected TextAdapter LabelAdapter;
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/// <summary>
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/// Current slider.
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/// </summary>
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[HideInInspector]
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[NonSerialized]
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protected CenteredSlider Slider;
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/// <summary>
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/// Start this instance.
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/// </summary>
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protected virtual void Start()
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{
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Init();
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}
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/// <summary>
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/// Init and adds listeners.
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/// </summary>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Performance", "HAA0603:Delegate allocation from a method group", Justification = "Required")]
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protected virtual void Init()
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{
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Slider = GetComponent<CenteredSlider>();
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if (Slider != null)
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{
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Slider.OnValueChanged.AddListener(ValueChanged);
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ValueChanged(Slider.Value);
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}
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}
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/// <summary>
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/// Callback when slider value changed.
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/// </summary>
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/// <param name="value">Value.</param>
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protected virtual void ValueChanged(int value)
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{
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LabelAdapter.text = value.ToString();
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}
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/// <summary>
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/// Remove listeners.
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/// </summary>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Performance", "HAA0603:Delegate allocation from a method group", Justification = "Required")]
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protected virtual void OnDestroy()
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{
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if (Slider != null)
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{
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Slider.OnValueChanged.RemoveListener(ValueChanged);
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}
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}
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/// <summary>
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/// Upgrade this instance.
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/// </summary>
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public virtual void Upgrade()
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{
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#pragma warning disable 0612, 0618
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Utilities.GetOrAddComponent(Label, ref LabelAdapter);
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#pragma warning restore 0612, 0618
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}
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#if UNITY_EDITOR
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/// <summary>
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/// Validate this instance.
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/// </summary>
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protected virtual void OnValidate()
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{
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Compatibility.Upgrade(this);
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}
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#endif
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}
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} |