public static bool UpdatePerson(Person person)
{
if (person == null)
{
return(false);
}
using (MyPhotosContainer context = new MyPhotosContainer())
{
IUnitOfWork unitOfWork = new UnitOfWork.UnitOfWork(context);
Person oldPerson = unitOfWork.People.GetById(person.Id);
if (oldPerson == null)
{
return(false);
}
if (person.Photo != null)
{
if (oldPerson.Photo != null)
{
PhotoFactory.Update(oldPerson.Photo, person.Photo);
}
else
{
oldPerson.Photo = PhotoFactory.Create(person.Photo);
}
}
PersonFactory.Update(oldPerson, person);
unitOfWork.Save();
return(true);
}
}
/// <summary>
/// 加载图片
/// </summary>
/// <param name="key"></param>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="release"></param>
/// <returns></returns>
public Stream LoadByImage(string key, int width, int height, int cutType)
{
var sourceFileName = ParsePath(key);
if (width <= 0 && height <= 0)//输出原始图片
{
return(new FileStream(sourceFileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
}
else
{
var thumbKey = GetThumbKey(key, width, height, cutType);
var f = new FileInfo(sourceFileName);
var dir = f.Directory.FullName;
string thumbFolder = Path.Combine(dir, "thumb");
if (!Directory.Exists(thumbFolder))
{
Directory.CreateDirectory(thumbFolder);
}
string fileName = Path.Combine(thumbFolder, thumbKey);
if (System.IO.File.Exists(fileName))
{
return(new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
}
else
{
//一次只处理1个图片的缩略请求
lock (_lockObject)
{
if (System.IO.File.Exists(fileName))
{
return(new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
}
else
{
//读取原图片，处理
var photo = PhotoFactory.Create(PathUtil.GetExtension(sourceFileName));
var format = sourceFileName.GetImageFormat();
using (MemoryStream ms = new MemoryStream())
{
using (var source = new FileStream(sourceFileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
switch (cutType)
{
case 1:
if (format == ImageFormat.Jpeg)
{
using (var image = source.ToImage())
{
using (var bitmap = image.Scale(width, height, ImageQuality.Height, Color.White))
{
bitmap.SaveAs(ms, format, 75);
}
}
}
else
{
photo.ThumbByFill(source, ms, width, height, true);
}
break;
case 2:
photo.ThumbByCut(source, ms, width, height, true);
break;
case 3:
photo.ThumbByFull(source, ms, width, height, true);
break;
case 4:
photo.ThumbByPart(source, ms, width, height, true);
break;
}
}
ms.Seek(0, SeekOrigin.Begin);
var bytes = ms.GetBuffer();
using (FileStream fs = new FileStream(fileName, FileMode.Create, FileAccess.Write, FileShare.None))
{
fs.Write(bytes, 0, bytes.Length);
}
}
//输出文件
return(new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
}
}
}
}
}
