UNITY__EDITORWINDOW 编辑器初探_unity editorwindow

前言：

在开发游戏的过程中我们一般都会开发一些便利的开发工具，大部分时候我们都是借助unity自带编辑器去写一些常用工具。然后 有什么错误的理解或者使用的，也欢迎各位指正哈！就当是相互学习了。
EditorWindow
窗口基类，基本上我们需要开发的窗口工具都是继承自EditorWindow。包括unity自身的一些窗口（Hierarchy,Inspector,Scene,Game,Project,Console）等等！

/// <summary>
/// 编辑器基类，方便后期管理拓展
/// </summary>
public class EditorWindowBase<T> : EditorWindow where T : EditorWindow
{
    private static T _instance;
    public static T Instance
    {
        get
        {
            if (_instance == null)
            {
                _instance = GetWindow<T>();
            }
            return _instance;
        }
    }
    /// <summary>
    /// 窗口优先级
    /// </summary>
    public int Priority { get; set; }
    
}
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EditorWindow的 GetWindow()方法可以返回一个模板窗口，然后我们就基于此窗口，进行拓展。

绘制窗口控件

绘制窗口控件有 几个常用的类： EditorGUI，EditorGUILayout，GUILayout，GUI。这几个类都可以创建常用控件，不同的也是互补的，基本能满足我们的需要！
EditorGUI 和 GUI 是基于我们设置的基准点生成的，无法自动排列！
EditorGUILayout 和 GUILayout 是自动排列的！

GUI 我一般很少用来绘制控件，用的比较多的是修改一些基本属性，比如控件颜色，文本颜色，控件层级什么的！

ToolBar 工具栏
常用的工具栏，就是下拉菜单，按钮，搜索框什么的！废话咱就不多说了，直接看效果！

private void TopToolBar()
    {
        GUI.color = Color.cyan;

        GUILayout.BeginHorizontal(EditorStyles.toolbar);
        if (GUILayout.Button("Clear All",EditorStyles.toolbarButton,GUILayout.MaxWidth(100f)))
        {
            
        }
        if (GUILayout.Button("下拉列表",EditorStyles.toolbarPopup,GUILayout.MaxWidth(200f)))
        {
            
        }
        CreateDropdown();
        SearchField();
        GUILayout.EndHorizontal();
        GUI.color = Color.white;
    }
    private void CreateDropdown()
    {
        Rect rect = GUILayoutUtility.GetRect(m_Styles.m_CreateDropdownContent, EditorStyles.toolbarDropDown,GUILayout.MaxWidth(240f),GUILayout.MinWidth(120f));
        if (EditorGUI.DropdownButton(rect,m_Styles.m_CreateDropdownContent,FocusType.Passive,EditorStyles.toolbarDropDown))
        {
            GUIUtility.hotControl = 0;
            EditorUtility.DisplayPopupMenu(rect,"Assets/Create",null);
        }
    }

    private void SearchField()
    {
        Rect rect = GUILayoutUtility.GetRect(120f, 300f, 18f, 20f, EditorStyles.toolbarSearchField,GUILayout.MinWidth(120f),GUILayout.MaxWidth(300f));
        m_lastSearchFilter = EditorGUI.TextField(rect, m_SearchFieldText, EditorStyles.toolbarSearchField);
        if (m_lastSearchFilter != m_SearchFieldText)
        {
            m_SearchFieldText = m_lastSearchFilter;
        }
    }
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	private void LoadFiles()
    {
        EditorGUILayout.BeginHorizontal();
        EditorGUILayout.TextField("文件路径:",m_FilePath );
        if (GUILayout.Button("打开文件夹",GUILayout.MaxWidth(200f)))
        {
            m_FilePath = EditorUtility.OpenFilePanel("选择文件", m_FilePath, "");
        }
        EditorGUILayout.EndHorizontal();
    }

    private void FiledControls()
    {
        m_IntField = EditorGUILayout.IntField("InitField", m_IntField);
        m_BoundsField = EditorGUILayout.BoundsField("BoundsField", m_BoundsField);
        m_GameObjects = (GameObject)EditorGUILayout.ObjectField("ObjectField", m_GameObjects, typeof(GameObject));
        m_Colors = EditorGUILayout.ColorField("颜色框", m_Colors);
        m_Cuvrs = EditorGUILayout.CurveField("曲线框", m_Cuvrs);
    }
    private void EditorGuiLayOut()
    {
        EditorGUILayout.MinMaxSlider("MinMaxSlider",ref m_MinNum,ref m_MaxNum,0,1f);
        m_EnumFlagsFields = (EnumFlagsFields)EditorGUILayout.EnumFlagsField("多选：",m_EnumFlagsFields);
        m_EnumPopUps = (EnumFlagsFields) EditorGUILayout.EnumPopup("单选：",m_EnumPopUps);
    }

    private void SliderBar()
    {
        var num = EditorGUILayout.Slider(m_Styles.m_Slider, m_SliderNum, 0, 1f);
        if (num != m_SliderNum)
        {
            m_SliderNum = num;
        }
        m_ScrollBarNum = GUILayout.HorizontalScrollbar(m_ScrollBarNum, 1f, 0, 1f);
        //GUILayout.VerticalScrollbar(m_ScrollBarNum, 1f, 0, 1f,GUILayout.Height(600f));
        m_SelectionNum = GUILayout.SelectionGrid(m_SelectionNum, new[] {"1", "2", "3", "4", "5", "6"}, 6);
        GUILayout.Toolbar(0, new[] {"1", "2", "3"});
        
    }
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以下是全部代码：

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEditor;
using UnityEditor.EditorTools;
using UnityEditor.UIElements;
using UnityEngine;

public class GorgeousWindow : EditorWindowBase<GorgeousWindow>
{

    [MenuItem("窗口管理/奥利给",priority = 0)]
    public static void StartUp()
    {
        Instance.Priority = 1;
        Instance.Show();
        Instance.minSize = new Vector2(400,400);
    }

    internal void OnEnable()
    {
        Init();

    }
    //---------------------------------以下为窗口属性字段----------------------------------//
    private static Styles m_Styles;
    [NonSerialized]
    private string m_SearchFieldText = "";
    [NonSerialized]
    private string m_lastSearchFilter;
    [SerializeField] 
    private float m_SliderNum;
    [SerializeField] 
    private float m_ScrollBarNum;
    [SerializeField] 
    private int m_SelectionNum;
    [SerializeField] 
    private float m_MinNum;
    [SerializeField] 
    private float m_MaxNum;
    [SerializeField]
    private EnumFlagsFields m_EnumFlagsFields;
    [SerializeField]
    private EnumFlagsFields m_EnumPopUps;
    [SerializeField]
    private int m_IntField;
    [SerializeField]
    private Bounds m_BoundsField;
    [SerializeField] 
    private GameObject m_GameObjects = null;
    [SerializeField] 
    private Color m_Colors;
    [SerializeField] 
    private AnimationCurve m_Cuvrs = AnimationCurve.Linear(Single.Epsilon, 0f,2f,1f);
    [SerializeField]
    private string m_FilePath = String.Empty;

    private string m_NormalPath = "F:/UnityDemos/XluaGF_Pro";
    
    //----------------------------------以下为窗口所需数据类型------------------------------//
    private enum EnumFlagsFields
    {
        FIRST,
        SECOND,
        THIRD,
        FOURTH,
        FIFTH,
        SIXTH,
        MORE
    }
    
    void Init()
    {
        m_Styles = new Styles();
        m_FilePath = m_NormalPath;
    }
    internal void OnGUI()
    {
        TopToolBar();
        
        GUILayout.BeginVertical();
        GUILayout.BeginScrollView(new Vector2(0, 0));
        SliderBar();
        EditorGuiLayOut();
        FiledControls();
        LoadFiles();
        GUILayout.EndScrollView();
        GUILayout.EndVertical();
    }

    private void LoadFiles()
    {
        EditorGUILayout.BeginHorizontal();
        EditorGUILayout.TextField("文件路径:",m_FilePath );
        if (GUILayout.Button("打开文件夹",GUILayout.MaxWidth(200f)))
        {
            m_FilePath = EditorUtility.OpenFilePanel("选择文件", m_FilePath, "");
        }
        EditorGUILayout.EndHorizontal();
    }

    private void FiledControls()
    {
        m_IntField = EditorGUILayout.IntField("InitField", m_IntField);
        m_BoundsField = EditorGUILayout.BoundsField("BoundsField", m_BoundsField);
        m_GameObjects = (GameObject)EditorGUILayout.ObjectField("ObjectField", m_GameObjects, typeof(GameObject));
        m_Colors = EditorGUILayout.ColorField("颜色框", m_Colors);
        m_Cuvrs = EditorGUILayout.CurveField("曲线框", m_Cuvrs);
    }
    private void EditorGuiLayOut()
    {
        EditorGUILayout.MinMaxSlider("MinMaxSlider",ref m_MinNum,ref m_MaxNum,0,1f);
        m_EnumFlagsFields = (EnumFlagsFields)EditorGUILayout.EnumFlagsField("多选：",m_EnumFlagsFields);
        m_EnumPopUps = (EnumFlagsFields) EditorGUILayout.EnumPopup("单选：",m_EnumPopUps);
    }

    private void SliderBar()
    {
        var num = EditorGUILayout.Slider(m_Styles.m_Slider, m_SliderNum, 0, 1f);
        if (num != m_SliderNum)
        {
            m_SliderNum = num;
        }
        m_ScrollBarNum = GUILayout.HorizontalScrollbar(m_ScrollBarNum, 1f, 0, 1f);
        //GUILayout.VerticalScrollbar(m_ScrollBarNum, 1f, 0, 1f,GUILayout.Height(600f));
        m_SelectionNum = GUILayout.SelectionGrid(m_SelectionNum, new[] {"1", "2", "3", "4", "5", "6"}, 6);
        GUILayout.Toolbar(0, new[] {"1", "2", "3"});
        
    }
    private void TopToolBar()
    {
        GUI.color = Color.cyan;

        GUILayout.BeginHorizontal(EditorStyles.toolbar);
        if (GUILayout.Button("Clear All",EditorStyles.toolbarButton,GUILayout.MaxWidth(100f)))
        {
            
        }
        if (GUILayout.Button("下拉列表",EditorStyles.toolbarPopup,GUILayout.MaxWidth(200f)))
        {
            
        }
        CreateDropdown();
        SearchField();
        GUILayout.EndHorizontal();
        GUI.color = Color.white;
    }
    private void CreateDropdown()
    {
        Rect rect = GUILayoutUtility.GetRect(m_Styles.m_CreateDropdownContent, EditorStyles.toolbarDropDown,GUILayout.MaxWidth(240f),GUILayout.MinWidth(120f));
        if (EditorGUI.DropdownButton(rect,m_Styles.m_CreateDropdownContent,FocusType.Passive,EditorStyles.toolbarDropDown))
        {
            GUIUtility.hotControl = 0;
            EditorUtility.DisplayPopupMenu(rect,"Assets/Create",null);
        }
    }

    private void SearchField()
    {
        Rect rect = GUILayoutUtility.GetRect(120f, 300f, 18f, 20f, EditorStyles.toolbarSearchField,GUILayout.MinWidth(120f),GUILayout.MaxWidth(300f));
        m_lastSearchFilter = EditorGUI.TextField(rect, m_SearchFieldText, EditorStyles.toolbarSearchField);
        if (m_lastSearchFilter != m_SearchFieldText)
        {
            m_SearchFieldText = m_lastSearchFilter;
        }
    }
    
    private class Styles
    {
        public GUIContent m_CreateDropdownContent = EditorGUIUtility.IconContent("CreateAddNew");
        public GUIContent m_Slider = new GUIContent("Slider");
    }
}
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