小结：

1、TextArea、TextField等文本输入框不能复制，TextArea可以换行，可以自适应宽。

2、参数可以传GUIContent的都可以显示图片或文字。

3、 GUILayout.Window需要调用BeginWindows、 EndWindows才能显示窗口。

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

/// <summary>
/// Unity 5.6
/// GUILayoutOption参数：
/// GUILayout.Width, GUILayout.Height, GUILayout.MinWidth, GUILayout.MaxWidth, GUILayout.MinHeight, GUILayout.MaxHeight, GUILayout.ExpandWidth, GUILayout.ExpandHeight
/// </summary>
public class GUILayoutControlExample : EditorWindow
{

    [MenuItem("Examples/GUILayoutControlExample")]
    static void Init()
    {
        GUILayoutControlExample window = (GUILayoutControlExample)EditorWindow.GetWindow(typeof(GUILayoutControlExample));
        window.Show();
    }

    void OnEnable()
    {
        #region Box
        m_boxTexture = Resources.Load("Textures/EquipIcon/12001") as Texture;
        m_boxLable = "GUILayout的Box控件！改变窗口大小后文本可以自适应";
        #endregion
    }
    // Box
    Texture m_boxTexture;
    string m_boxLable ;

    //Label
    string m_lableText = "GUILayout的Label控件！改变窗口大小后文本不能自适应";

    //PasswordField
    string m_passwordFieldText = "";

    //  SelectionGrid
    int selGridInt = 0;
    string[] selStrings = new string[] { "radio1", "radio2", "radio3", "radio4" };
    int selectIndex = -1;

    //BeginScrollView
    public Vector2 scrollPosition;
    public string longString = "This is a long-ish string";
    //BeginArea
    Rect area = new Rect(500, 20, 200, 200);
    //GUILayout.Window
    Rect windowRect = new Rect(200, 50, 200, 50);

    //Scrollbar
    public float vSbarValue;
    public float hSbarValue;
    //Slider
    public float vSliderValue;
    public float hSliderValue;
    //TextArea
    string m_textAtea = "TextArea 文本框";
    //TextField
    string m_textField = "TextField 输入框";
    //Toggle
    bool m_toggle = true;
    //ToolBar
    int toolbarInt = 0;
    int toolbarIndex = -1;
    string[] toolbarStrings = new string[] { "Toolbar1", "Toolbar2", "Toolbar3" };

    void OnGUI()
    {
        //参数可以传GUIContent的都可以显示图片或文字
        #region Box 
        //显示的图片大小就是资源大小，文本可以自适应
        if (m_boxTexture != null)
        {
            GUILayout.Box(m_boxTexture);
           //GUILayout.Box(new GUIContent(m_boxLable, m_boxTexture));
        }

        GUILayout.Box(m_boxLable);
        #endregion

        #region Button 自动布局按钮
        //Button：鼠标按下抬起是一次有效点击，按下抬起才返回True。
        //RepeatButton:鼠标按下后会一直返回True。（如果没有调用Repaint函数，按下、抬起返回True）
        if (GUILayout.Button("Button"))
        {
            Debug.Log("点击按钮");
            Repaint();
        }
        if (GUILayout.RepeatButton("RepeatButton"))
        {
            Debug.Log("点击RepeatButton按钮");
            Repaint();
        }
        #endregion

        //FlexibleSpace  自适应间距
        GUILayout.FlexibleSpace();

        GUILayout.Label("Lable:"+ m_lableText);
        //PasswordField  传入的string需要先初始化一个默认值，不然会报空异常
        m_passwordFieldText = GUILayout.PasswordField(m_passwordFieldText, '*');
        GUI.color = Color.red;
        GUILayout.Label("PasswordField:" + m_passwordFieldText);
        GUI.color = Color.white;
        #region  SelectionGrid
        //感觉就跟UGUI的GridLayoutGroup一样
        selGridInt = GUILayout.SelectionGrid(selGridInt, selStrings, 2);
        if (selectIndex!= selGridInt)
        {
            Debug.Log("选择了： " + selStrings[selGridInt]);
            selectIndex = selGridInt;
        }

        #endregion
        GUILayout.Space(20);
        //可以自适应宽，可以换行
        m_textAtea = GUILayout.TextArea(m_textAtea);
        //不能自适应，只有一行
        m_textField = GUILayout.TextField(m_textField);
        m_toggle = GUILayout.Toggle(m_toggle, "Toggle:");

        toolbarInt = GUILayout.Toolbar(toolbarInt, toolbarStrings);
        if (toolbarIndex!=toolbarInt)
        {
            Debug.Log("点击了：" + toolbarStrings[toolbarInt]);
            toolbarIndex = toolbarInt;
        }
        //滚动条
        vSbarValue = GUILayout.VerticalScrollbar(vSbarValue, 1.0F, 10.0F, 0.0F);
        hSbarValue = GUILayout.HorizontalScrollbar(hSbarValue, 1.0F, 0.0F, 10.0F);
        //滑动条
        vSliderValue = GUILayout.VerticalSlider(vSliderValue, 10.0F, 0.0F);
        hSliderValue = GUILayout.HorizontalSlider(hSliderValue, 0.0F, 10.0F);

        //创建一个GUI的区域，区域内的控件只受区域影响
        GUILayout.BeginArea(area);
        GUILayout.BeginHorizontal();

        #region Vertical A
        GUILayout.BeginVertical();
        GUILayout.Box("Text1");
        //控件与控件之间空隙一个距离
        GUILayout.Space(20f);
        GUILayout.Box("Text1");
        GUILayout.Space(20f);
        GUILayout.Button("Button");
        GUILayout.EndVertical();
        #endregion

        #region Vertical B
        GUILayout.BeginVertical();
        GUILayout.Box("Text3");
        //自动测算空隙距离
        GUILayout.FlexibleSpace();
        GUILayout.Box("Text4");
        GUILayout.FlexibleSpace();
        GUILayout.Button("Button");
        GUILayout.EndVertical();

        #endregion

        GUILayout.EndHorizontal();
        GUILayout.EndArea();
        //
        scrollPosition = GUILayout.BeginScrollView(scrollPosition, GUILayout.Width(300), GUILayout.Height(100));
        GUILayout.Label(longString);
        if (GUILayout.Button("Clear"))
            longString = "";

        //
        GUILayout.EndScrollView();
        if (GUILayout.Button("Add More Text"))
            longString += "\nHere is another line";

        //
        BeginWindows();
        windowRect = GUILayout.Window(0, windowRect, DoMyWindow, "GUILayout的Window");
        EndWindows();

    }

    void DoMyWindow(int windowID)
    {
        if (GUILayout.Button("Button"))
            Debug.Log("点击按钮！");
        GUI.DragWindow();
    }

}

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