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SizedFoldoutGroup Attribute for Odin Inspector
namespace Sirenix.OdinInspector
{
#pragma warning disable
using System;
[AttributeUsage(AttributeTargets.All, AllowMultiple = true, Inherited = true)]
[System.Diagnostics.Conditional("UNITY_EDITOR")]
public class SizedFoldoutGroupAttribute : PropertyGroupAttribute
{
private bool expanded;
public bool Expanded
{
get { return this.expanded; }
set
{
this.expanded = value;
this.HasDefinedExpanded = true;
}
}
public bool HasDefinedExpanded { get; private set; }
public bool HasDefinedColor = false;
public float R, G, B, A;
public SizedFoldoutGroupAttribute(string groupName, float order = 0)
: base(groupName, order)
{
}
public SizedFoldoutGroupAttribute(string groupName, float r, float g, float b, float a = 1f, float order = 0)
: base(groupName, order)
{
this.R = r;
this.G = g;
this.B = b;
this.A = a;
HasDefinedColor = true;
}
public SizedFoldoutGroupAttribute(string groupName, bool expanded, float order = 0)
: base(groupName, order)
{
this.expanded = expanded;
this.HasDefinedExpanded = true;
}
protected override void CombineValuesWith(PropertyGroupAttribute other)
{
var attr = other as SizedFoldoutGroupAttribute;
if (attr.HasDefinedExpanded)
{
this.HasDefinedExpanded = true;
this.Expanded = attr.Expanded;
}
if (this.HasDefinedExpanded)
{
attr.HasDefinedExpanded = true;
attr.Expanded = this.Expanded;
}
this.R = Math.Max(attr.R, this.R);
this.G = Math.Max(attr.G, this.G);
this.B = Math.Max(attr.B, this.B);
this.A = Math.Max(attr.A, this.A);
}
}
}
#if UNITY_EDITOR
namespace Sirenix.OdinInspector.Editor.Drawers
{
#pragma warning disable
using Utilities.Editor;
using UnityEngine;
using Sirenix.OdinInspector.Editor.ValueResolvers;
public class SizedFoldoutGroupAttributeDrawer : OdinGroupDrawer<SizedFoldoutGroupAttribute>
{
private ValueResolver<string> titleGetter;
private ValueResolver<Color> colorGetter;
protected override void Initialize()
{
this.titleGetter = ValueResolver.GetForString(this.Property, this.Attribute.GroupName);
if (this.Attribute.HasDefinedExpanded)
{
this.Property.State.Expanded = this.Attribute.Expanded;
}
}
protected override void DrawPropertyLayout(GUIContent label)
{
var property = this.Property;
var attribute = this.Attribute;
if (this.titleGetter.HasError)
{
SirenixEditorGUI.ErrorMessageBox(this.titleGetter.ErrorMessage);
}
if (this.Attribute.HasDefinedColor)
{
GUIHelper.PushColor(new Color(this.Attribute.R, this.Attribute.G, this.Attribute.B, this.Attribute.A));
}
SirenixEditorGUI.BeginBox();
SirenixEditorGUI.BeginBoxHeader();
if (this.Attribute.HasDefinedColor)
{
GUIHelper.PopColor();
}
GUIStyle s = new GUIStyle(SirenixGUIStyles.Foldout);
s.richText = true;
var content = GUIHelper.TempContent(this.titleGetter.HasError ? property.Label.text : this.titleGetter.GetValue());
s.fixedWidth = 450;
s.wordWrap = true;
s.alignment = TextAnchor.UpperLeft;
var height = s.CalcHeight(content, 450);
GUILayout.BeginVertical();
switch(height)
{
default:
GUILayout.Space((height / 2) - 10);
break;
case 45:
GUILayout.Space((height / 2) - 18);
break;
case 15:
GUILayout.Space((height / 2));
break;
}
this.Property.State.Expanded = SirenixEditorGUI.Foldout(this.Property.State.Expanded, content, s);
switch (height)
{
default:
GUILayout.Space((height / 2));
break;
case 45:
GUILayout.Space((height / 2) + 8);
break;
}
GUILayout.EndVertical();
SirenixEditorGUI.EndBoxHeader();
if (SirenixEditorGUI.BeginFadeGroup(this, this.Property.State.Expanded))
{
for (int i = 0; i < property.Children.Count; i++)
{
var child = property.Children[i];
child.Draw(child.Label);
}
}
SirenixEditorGUI.EndFadeGroup();
SirenixEditorGUI.EndBox();
}
}
}
#endif
@digiwombat
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digiwombat commented Feb 12, 2021

Example

Example Usage:

public class SomeScriptableObject : ScriptableObject
{
    // A SizedFoldoutGroup with color
    [SizedFoldoutGroup("$SomeString", 0.87f, 0f, 0.97f)]
    public int SomeInt;

    // A Default color sized foldout group.
    [SizedFoldoutGroup("This String is a Good Boy\nPlease believe me.")]
    public int SomeOtherInt;

    public string SomeString = "<b>MultiLine is Okay</b>\nDon't believe me? You can ask my wife.";
}

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