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

//文字按钮控制类 设置文字时动态改变按钮高度 确保显示所有文字 
public class TextButtonCtrl : MonoBehaviour
{
    [SerializeField]
    Text text_msg =null;
    [SerializeField]
    RectTransform button_trans=null;
    TextGenerator generator = new TextGenerator();
    TextGenerationSettings settings;
    [SerializeField]
    float pading=5;//按钮与文字之间预留的空白区域  默认文字居中 上下一致
 
    public void SetStr(string str)
    {
        if(settings.font==null)
            settings = text_msg.GetGenerationSettings(text_msg.rectTransform.rect.size);//获取Text 的实际尺寸
        if (settings.horizontalOverflow == HorizontalWrapMode.Overflow)//不能设置为横向扩展 否则无法正确计算高度
            settings.horizontalOverflow = HorizontalWrapMode.Wrap;
        float value = generator.GetPreferredHeight(str, settings);
        Vector2 size = button_trans.sizeDelta;
        size.y = value+ pading*2;
        //Debug.Log(size.y);
        button_trans.sizeDelta = size;
        text_msg.text = str;
    }
    
}