/// <summary>
/// 下载图片
/// </summary>
/// <param name="url"></param>
/// <returns></returns>
private string DownloadImage(string url)
{
string localFile = Path.GetTempPath() + Guid.NewGuid().ToString("N");
// 下载
bool isSuccessed = StorageUtils.DownloadImage(url, localFile);
if (isSuccessed)
{
try
{
string md5 = Hash.GetMD5HashFromFile(localFile);
if (File.Exists(localFile))
{
string destFile = $"{StorageManager.GetHeader()}/{md5}";
try
{
File.Delete(destFile);
}
catch { }
// 移动到指定位置
File.Move(localFile, destFile);
return(md5);
}
else
{
return(null);
}
}
catch (Exception e)
{
Utils.Debugging.Console.PrintLine("DownloadImage()发生异常: {0}", e);
LogManager.Error("StorageHeader", e);
return(null);
}
}
return(null);
}
/// <summary>
/// 获取用户头像缩略图
/// </summary>
/// <param name="header"></param>
/// <param name="width"></param>
/// <param name="height"></param>
/// <returns></returns>
public BitmapImage GetHeaderThumbnail(string header, int width, int height)
{
if (header == null)
{
return(null);
}
try
{
Bitmap bitmap = new Bitmap(header);
Image thumbnail = bitmap.GetThumbnailImage(width, height, null, IntPtr.Zero);
return(StorageUtils.BitmapToBitmapImage(new Bitmap(thumbnail)));
}
catch (ArgumentException)
{
try
{
SimpleDecoder simpleDecoder = new SimpleDecoder(header);
Bitmap bitmap = simpleDecoder.WebPtoBitmap();
Image thumbnail = bitmap.GetThumbnailImage(width, height, null, IntPtr.Zero);
return(StorageUtils.BitmapToBitmapImage(new Bitmap(thumbnail)));
}
catch (Exception ex)
{
Utils.Debugging.Console.PrintLine("GetHeaderThumbnail()发生异常: {0}", ex);
LogManager.Error("StorageHeader.GetHeaderThumbnail()", ex);
return(null);
}
}
catch (Exception e)
{
Utils.Debugging.Console.PrintLine("GetHeaderThumbnail()发生异常: {0}", e);
LogManager.Error("StorageHeader.GetHeaderThumbnail()", e);
return(null);
}
}