public void SaveImage(ImageStorageInfo storageInfo, int numberOfChunks, string thumbnail)
{
var recordPath = Path.Combine(Properties.Settings.Default.ImagesDir, "record.xml");
var record = new Record();
if (File.Exists(recordPath))
{
record = XmlFileSerializer.Deserialize <Record>(recordPath);
}
var images = record.Images?.ToList() ?? new List <Image>();
images.Add(new Image
{
CreatedAt = storageInfo.CreatedAt,
DirectoryName = storageInfo.DirectoryName,
NumberOfChunks = numberOfChunks,
Thumbnail = thumbnail
});
record.Images = images.ToArray();
XmlFileSerializer.Serialize(record, recordPath);
}
public ImageStorageInfo Initialize()
{
var storageInfo = new ImageStorageInfo();
var date = DateTime.Now;
var dirName = date.ToString("yyyy-MM-dd_HH-mm-ss");
var path = Path.Combine(Properties.Settings.Default.ImagesDir, dirName);
storageInfo.CreatedAt = date;
storageInfo.DirectoryName = dirName;
storageInfo.FullPath = path;
Directory.CreateDirectory(path);
return(storageInfo);
}
public string GetThumbnail(ImageStorageInfo storageInfo)
{
var files = Directory.GetFiles(storageInfo.FullPath, "*.jpg");
if (files.Length == 0)
{
return(null);
}
var index = (int)Math.Round((double)(files.Length / 2));
if (index < 0 || index > files.Length - 1)
{
index = 0;
}
string result;
using (var fs = File.Open(files[index], FileMode.Open, FileAccess.Read))
{
using (var img = System.Drawing.Image.FromStream(fs))
{
var destinationHeight = (int)(img.Height * 1.0 / (img.Width * 1.0) * 200);
using (var thumb = img.GetThumbnailImage(200, destinationHeight, () => false, IntPtr.Zero))
{
byte[] buff;
using (var ms = new MemoryStream())
{
thumb.Save(ms, ImageFormat.Jpeg);
buff = ms.ToArray();
}
result = Convert.ToBase64String(buff);
}
}
}
return(result);
}
