114 lines
2.8 KiB
C#
114 lines
2.8 KiB
C#
|
//
|
|||
|
|
// Copyright (c) 2017 Anthony Marmont. All rights reserved.
|
|||
|
|
// Licensed for use under the Unity Asset Store EULA. See https://unity3d.com/legal/as_terms for full license information.
|
|||
|
|
//
|
|||
|
|
|
|||
|
|
#if UNITY_EDITOR
|
|||
|
|
#pragma warning disable
|
|||
|
|
|
|||
|
|
using System;
|
|||
|
|
using System.Collections.Generic;
|
|||
|
|
using System.Diagnostics;
|
|||
|
|
using UnityEngine;
|
|||
|
|
|
|||
|
|
namespace AssetIcons.Editors.Preferences
|
|||
|
|
{
|
|||
|
|
/// <summary>
|
|||
|
|
/// <para>A base-class for the generic wrapper object that fires events whenever its value changes.</para>
|
|||
|
|
/// </summary>
|
|||
|
|
public abstract class EventField
|
|||
|
|
{
|
|||
|
|
/// <summary>
|
|||
|
|
/// <para>Event that is fired whenever the value of this <see cref="EventField"/> changes.</para>
|
|||
|
|
/// </summary>
|
|||
|
|
public event Action OnChanged;
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// <para>Invokes the <see cref="OnChanged"/> event.</para>
|
|||
|
|
/// </summary>
|
|||
|
|
/// <event cref="OnChanged">Fired upon calling this method.</event>
|
|||
|
|
protected void InvokeChanged()
|
|||
|
|
{
|
|||
|
|
if (OnChanged != null)
|
|||
|
|
{
|
|||
|
|
OnChanged();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// <para>A generic wrapper object that fires events whenever its value changes.</para>
|
|||
|
|
/// </summary>
|
|||
|
|
/// <seealso cref="BoolEventField"/>
|
|||
|
|
/// <seealso cref="IntEventField"/>
|
|||
|
|
public class EventField<T> : EventField, ISerializationCallbackReceiver
|
|||
|
|
{
|
|||
|
|
[SerializeField]
|
|||
|
|
[DebuggerBrowsable(DebuggerBrowsableState.Never)]
|
|||
|
|
private T internalValue;
|
|||
|
|
|
|||
|
|
[SerializeField]
|
|||
|
|
[DebuggerBrowsable(DebuggerBrowsableState.Never)]
|
|||
|
|
private T beforeSerialization;
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// <para>The value that this wrapper currently represents.</para>
|
|||
|
|
/// </summary>
|
|||
|
|
/// <event cref="EventField.OnChanged">Fired whenever the value of this property change.</event>
|
|||
|
|
public T Value
|
|||
|
|
{
|
|||
|
|
get
|
|||
|
|
{
|
|||
|
|
return internalValue;
|
|||
|
|
}
|
|||
|
|
set
|
|||
|
|
{
|
|||
|
|
if (!EqualityComparer<T>.Default.Equals(internalValue, value))
|
|||
|
|
{
|
|||
|
|
internalValue = value;
|
|||
|
|
|
|||
|
|
InvokeChanged();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// <para>Constructs a new instance of this <see cref="EventField"/>.</para>
|
|||
|
|
/// </summary>
|
|||
|
|
public EventField()
|
|||
|
|
{
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// <para>Constructs a new instance of this <see cref="EventField"/> with a default value.</para>
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="defaultValue">The default value for this <see cref="BoolEventField"/>.</param>
|
|||
|
|
public EventField(T defaultValue)
|
|||
|
|
{
|
|||
|
|
internalValue = defaultValue;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// <para>Implements the Unity <see cref="ISerializationCallbackReceiver"/> interface.</para>
|
|||
|
|
/// </summary>
|
|||
|
|
public void OnAfterDeserialize()
|
|||
|
|
{
|
|||
|
|
if (!EqualityComparer<T>.Default.Equals(internalValue, beforeSerialization))
|
|||
|
|
{
|
|||
|
|
InvokeChanged();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// <para>Implements the Unity <see cref="ISerializationCallbackReceiver"/> interface.</para>
|
|||
|
|
/// </summary>
|
|||
|
|
public void OnBeforeSerialize()
|
|||
|
|
{
|
|||
|
|
beforeSerialization = internalValue;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
#pragma warning restore
|
|||
|
|
#endif
|