GHZLangChao/Assets/Scripts/Mail/Mail_ImageItem.cs

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

public class Mail_ImageItem : MonoBehaviour
{
    public RawImage mainImage;
    public RectTransform rectTransform;

    public void SetImageData( string imageData)
    {
        Debug.Log(imageData);
        UILogManager.Instance.text1.text = imageData;
        imageData = imageData.Trim().Replace("%", "").Replace(",", "").Replace(" ", "+");
        if (imageData.Length % 4 > 0)
        {
            imageData = imageData.PadRight(imageData.Length + 4 - imageData.Length % 4, '=');
        }

        Texture2D pic = new Texture2D(190, 190, TextureFormat.RGBA32, false);
        byte[] data = System.Convert.FromBase64String(imageData.Trim('\0'));
        pic.LoadImage(data);

        Adaption(pic);
        mainImage.texture = pic;
    }

    public void SetImageData(Texture imgSprite)
    {
        Adaption(imgSprite);
        mainImage.texture = imgSprite;
    }

    public void Adaption(Texture tex)
    {
        float standard_width = 150f;
        float standard_height = 84f;
        float video_width = tex.width;
        float video_height = tex.height;
        //Debug.Log(tex.width + "***" + tex.height);
        if (standard_width < video_width && standard_height > video_height)
        {
            float video_aspect = standard_width / video_width;
            rectTransform.sizeDelta = new Vector2(standard_width, video_height * video_aspect);
        }
        else if (standard_width > video_width && standard_height < video_height)
        {
            float video_aspect = standard_height / video_height;
            rectTransform.sizeDelta = new Vector2(video_width * video_aspect, standard_height);
        }
        else if (standard_width > video_width && standard_height > video_height)
        {
            if (standard_width / video_width > standard_height / video_height)
            {
                float video_aspect = standard_height / video_height;
                rectTransform.sizeDelta = new Vector2(video_width * video_aspect, video_height * video_aspect);
            }
            else
            {
                float video_aspect = standard_width / video_width;
                rectTransform.sizeDelta = new Vector2(video_width * video_aspect, video_height * video_aspect);
            }
        }
        else
        {
            if (standard_width / video_width > standard_height / video_height)
            {
                float video_aspect = standard_height / video_height;
                rectTransform.sizeDelta = new Vector2(video_width * video_aspect, video_height * video_aspect);
            }
            else
            {
                float video_aspect = standard_width / video_width;
                rectTransform.sizeDelta = new Vector2(video_width * video_aspect, video_height * video_aspect);
            }
        }
    }
}