"请做一个长寿的程序员"

using System;

using System.Collections.Generic;

using System.Reflection;

using UnityEditor;

using UnityEngine;

namespace UKit.Utility.Editor

{

  public class GUIStyleSampleWindow : EditorWindow

  {

    private Vector2 m_ScrollViewPosition = Vector2.zero;

    private List<GUIStyle> m_AllGUIStyleList;

    private List<GUIStyle> m_ShowingGUIStyleList;

    private bool m_IsShowText = true;

    private Vector2 m_CellSize = new Vector2(200, 100);

    private string m_SearchString;

    private bool m_HasInit;

    [MenuItem("UKit/GUIStyleSamples")]

    private static void ShowWindow()

    {

      var window = GetWindow<GUIStyleSampleWindow>();

      window.titleContent = new GUIContent("GUIStyleSamples");

      window.Show();

    }

    private void TryInit()

    {

      if (m_HasInit)

        return;

      m_AllGUIStyleList = new List<GUIStyle>(700);

      m_ShowingGUIStyleList = new List<GUIStyle>(700);

       

      var pp = GUI.skin.GetType().GetProperties();

      for (int i = 0; i < pp.Length; i++)

      {

        if (pp[i].GetValue(GUI.skin) is GUIStyle style)

        {

          m_AllGUIStyleList.Add(style);

          m_ShowingGUIStyleList.Add(style);

        }

      }

      var styles = GUI.skin.GetType().GetField("m_CustomStyles", BindingFlags.Instance | BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic).GetValue(GUI.skin) as GUIStyle[];

      if (styles != null)

      {

        for (int i = 0; i < styles.Length; i++)

        {

          var style = styles[i];

          m_AllGUIStyleList.Add(style);

          m_ShowingGUIStyleList.Add(style);

        }

      }

      this.m_HasInit = true;

    }

    private void UpdateShowingGUIStyleList()

    {

      this.m_ShowingGUIStyleList.Clear();

      var isShowAll = string.IsNullOrEmpty(this.m_SearchString);

      var lowerSearchString = isShowAll ? "" : this.m_SearchString.ToLower();

      for (int i = 0; i < m_AllGUIStyleList.Count; i++)

      {

        var style = m_AllGUIStyleList[i];

        if (style.name.ToLower().Contains(lowerSearchString))

        {

          this.m_ShowingGUIStyleList.Add(style);

        }

      }

       

    }

    private void OnGUI()

    {

      this.TryInit();

      this.DrawHeader();

      var column = Math.Max((int)(this.position.width / m_CellSize.x), 6);

      this.m_ScrollViewPosition = GUILayout.BeginScrollView(this.m_ScrollViewPosition);

      this.DrawStyles(column);

      GUILayout.EndScrollView();

    }

    private void DrawHeader()

    {

      GUILayout.BeginHorizontal(GUI.skin.GetStyle("PreBackground"), GUILayout.Height(24));

      this.m_IsShowText = GUILayout.Toggle(this.m_IsShowText, "Show text", GUILayout.Width(120));

      GUILayout.Label("Search", GUILayout.Width(50));

      var newSearchString = GUILayout.TextField(this.m_SearchString, GUILayout.Width(200));

      if (newSearchString != this.m_SearchString)

      {

        this.m_SearchString = newSearchString;

        this.UpdateShowingGUIStyleList();

      }

      GUILayout.EndHorizontal();

    }

     

    private void DrawStyles(int column)

    {

      GUILayout.BeginVertical();

      for (int i = 0; i < m_ShowingGUIStyleList.Count; i++)

      {

        if (i % column == 0)

        {

          GUILayout.Space(2);

          GUILayout.BeginHorizontal();

        }

        GUILayout.Space(4);

        GUILayout.BeginVertical(GUI.skin.window, GUILayout.Width(m_CellSize.x), GUILayout.Height(m_CellSize.y));

        var style = this.m_ShowingGUIStyleList[i];

        GUILayout.Space(-18);

        GUILayout.TextField($"{(i + 1).ToString("D3")}:{style.name}");

        if (GUILayout.Button(this.m_IsShowText ? "Text" : "  ", style))

        {

          GUIUtility.systemCopyBuffer = $"GUI.skin.GetStyle(\"{style.name}\")";

          Debug.Log($"复制到剪切板:{GUIUtility.systemCopyBuffer}");

        }

        GUILayout.EndVertical();

        if (i % column == column - 1 || i == m_ShowingGUIStyleList.Count - 1)

        {

          GUILayout.EndHorizontal();

          GUILayout.Space(2);

        }

      }

      GUILayout.EndVertical();

    }

  }

}