MaiDXR/Assets/uWindowCapture/Editor/UwcEditorUtils.cs

using UnityEngine;
using UnityEditor;

namespace uWindowCapture
{

public static class EditorUtils
{
    public static bool Foldout(string title, bool display)
    {
        var style = new GUIStyle("ShurikenModuleTitle");
        style.font = new GUIStyle(EditorStyles.label).font;
        style.border = new RectOffset(15, 7, 4, 4);
        style.fixedHeight = 22;
        style.contentOffset = new Vector2(20f, -2f);

        var rect = GUILayoutUtility.GetRect(16f, 22f, style);
        GUI.Box(rect, title, style);

        var e = Event.current;

        var toggleRect = new Rect(rect.x + 4f, rect.y + 2f, 13f, 13f);
        if (e.type == EventType.Repaint)
        {
            EditorStyles.foldout.Draw(toggleRect, false, false, display, false);
        }

        if (e.type == EventType.MouseDown && rect.Contains(e.mousePosition))
        {
            display = !display;
            e.Use();
        }

        return display;
    }

    public static void Fold(string name, ref bool folded, System.Action func)
    {
        folded = Foldout(name, folded);
        if (folded)
        {
            ++EditorGUI.indentLevel;
            func();
            --EditorGUI.indentLevel;
        }
    }
}

}