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


public class ChangeTextAndImage : EditorWindow {


    [MenuItem("程序/替换层次视图中预制体的文本或图片")]
    public static void Open()
    {
        EditorWindow.GetWindow(typeof(ChangeTextAndImage));
    }

    static GameObject tagetObj;

    void OnGUI()
    {
        GUILayout.Label("Hierarchy 层次视图中的预制体");
        if (GUILayout.Button("将Text更换为TextEx"))
        {
            ChangeText();
        }

        if (GUILayout.Button("将Image更换为ImageEx"))
        {
            ChangeImage();
        }

    }

    
    void ChangeText()
    {
        //将指定的tagetObj预制体中的所有Text更换为TextEx
        //Selection.activeObject;
        tagetObj = Selection.activeObject as GameObject;

        if (tagetObj == null)
        {
            Debug.LogError("请将预制体拖到Hierarchy 层次视图 并选中");
            return;
        }
        Text[] texts = tagetObj.GetComponentsInChildren<Text>(true);

        //将Text[]转成 List<GameObject>
        List<GameObject> golist = new List<GameObject>();
        foreach (var item in texts)
        {
            golist.Add(item.gameObject);
        }


        for (int i = 0; i < golist.Count; i++)
        {
            var go = golist[i];
            Text text = go.GetComponent<Text>();

            if (text as TextEx != null)
            {
                continue;
            }

            var textContent = text.text;
            var textFontSize = text.fontSize;

            //删除Text
            DestroyImmediate(text);

            TextEx textEx = go.AddMissingComponent<TextEx>();
            textEx.text = textContent;
            textEx.font = FontUtility.preferred;
            textEx.fontSize = textFontSize;
            textEx.raycastTarget = false;
            textEx.alignment = TextAnchor.MiddleCenter;
            textEx.horizontalOverflow = HorizontalWrapMode.Wrap;
            textEx.verticalOverflow = VerticalWrapMode.Truncate;
            textEx.resizeTextForBestFit = true;
            textEx.resizeTextMinSize = 10;
            textEx.resizeTextMaxSize = textFontSize;

        }


        
    }


    void ChangeImage()
    {
        //将指定的tagetObj预制体中的所有Image更换为ImageEx
        //Selection.activeObject;
        tagetObj = Selection.activeObject as GameObject;

        if (tagetObj == null)
        {
            Debug.LogError("请将预制体拖到Hierarchy 层次视图 并选中");
            return;
        }
        Image[] images = tagetObj.GetComponentsInChildren<Image>(true);

        //将Image[]转成 List<GameObject>
        List<GameObject> golist = new List<GameObject>();
        foreach (var item in images)
        {
            golist.Add(item.gameObject);
        }

        for (int i = 0; i < golist.Count; i++)
        {
            var go = golist[i];
            Image image = go.GetComponent<Image>();

            if (image as ImageEx != null)
            {
                continue;
            }

            var imageSprite = image.sprite;
            var imageColor = image.color;

            //删除Image
            DestroyImmediate(image);

            ImageEx imageEx = go.AddMissingComponent<ImageEx>();
            imageEx.sprite = imageSprite;
            imageEx.raycastTarget = false;
        }   
    }
}