private void SaveImageToCameraRoll(Stream stream, MemoryStream thumbStream)
{
string fileName = DateTime.Now.ToString("yyyy_MM_dd_HH_mm_ss_fff") + "#" + m_sequenceGuid.ToString();
ExifFile exif = ExifFile.ReadStream(stream);
string metadata = GetMetadata(fileName);
byte[] data = Encoding.UTF8.GetBytes(metadata);
uint length = (uint)data.Length;
ushort type = 2;
var imgDescProp = ExifPropertyFactory.Get(0x010e, type, length, data, BitConverterEx.ByteOrder.BigEndian, IFD.Zeroth);
exif.Properties.Add(ExifTag.ImageDescription, imgDescProp);
using (var ml = new MediaLibrary())
{
exif.SaveToCameraRoll("mapi_" + fileName + ".jpg", ml);
using (var memstream = new MemoryStream())
{
WriteableBitmap bmp = new WriteableBitmap(100, 75);
bmp = bmp.FromStream(thumbStream);
WriteableBitmap tBmp = bmp.Resize(100, 75, WriteableBitmapExtensions.Interpolation.NearestNeighbor);
tBmp.SaveJpeg(memstream, 100, 75, 0, 90);
memstream.Seek(0, SeekOrigin.Begin);
ml.SavePictureToCameraRoll("mapi_thumb_" + fileName + ".jpg", memstream);
}
}
stream.Close();
thumbStream.Close();
stream.Dispose();
thumbStream.Dispose();
}
private async Task ExifTest()
{
using (IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication())
{
var folder = await ApplicationData.Current.LocalFolder.GetFolderAsync("shared\\transfers");
var images = await folder.GetFilesAsync();
var first = images.FirstOrDefault();
if (first == null)
{
return;
}
using (IsolatedStorageFileStream stream = storage.OpenFile(@"shared\\transfers\" + first.Name, FileMode.Open))
{
ExifFile exif = ExifFile.ReadStream(stream);
}
}
}
private void SaveImageToIsoStore(Stream stream, MemoryStream thumbStream)
{
string fileName = DateTime.Now.ToString("yyyy_MM_dd_HH_mm_ss_fff") + "#" + m_sequenceGuid.ToString();
ExifFile exif = ExifFile.ReadStream(stream);
string metadata = GetMetadata(fileName);
byte[] data = Encoding.UTF8.GetBytes(metadata);
uint length = (uint)data.Length;
ushort type = 2;
var imgDescProp = ExifPropertyFactory.Get(0x010e, type, length, data, BitConverterEx.ByteOrder.BigEndian, IFD.Zeroth);
exif.Properties.Add(ExifTag.ImageDescription, imgDescProp);
using (IsolatedStorageFile isStore = IsolatedStorageFile.GetUserStoreForApplication())
{
if (!isStore.DirectoryExists("shared"))
{
isStore.CreateDirectory("shared");
}
if (!isStore.DirectoryExists("shared\\transfers"))
{
isStore.CreateDirectory("shared\\transfers");
}
using (IsolatedStorageFileStream targetStream = isStore.OpenFile(@"shared\\transfers\" + fileName + ".jpg", FileMode.Create, FileAccess.Write))
{
exif.SaveStream(targetStream);
}
using (IsolatedStorageFileStream thumbtargetStream = isStore.OpenFile(@"shared\\transfers\thumb_" + fileName + ".jpg", FileMode.Create, FileAccess.Write))
{
WriteableBitmap bmp = new WriteableBitmap(100, 75);
bmp = bmp.FromStream(thumbStream);
WriteableBitmap tBmp = bmp.Resize(100, 75, WriteableBitmapExtensions.Interpolation.NearestNeighbor);
tBmp.SaveJpeg(thumbtargetStream, 100, 75, 0, 90);
}
stream.Close();
thumbStream.Close();
stream.Dispose();
thumbStream.Dispose();
}
}
private void rotateBtn_Click(object sender, RoutedEventArgs e)
{
previewImage.Source = null;
if (m_selectedFile != null)
{
Dictionary <ExifTag, ExifProperty> exifProperties = new Dictionary <ExifTag, ExifProperty>();
using (IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication())
{
WriteableBitmap bmp = new WriteableBitmap(0, 0);
string exifData = null;
using (var fileStream = storage.OpenFile(m_selectedFile.Path, FileMode.Open, FileAccess.Read, FileShare.Read))
{
ExifFile exif = ExifFile.ReadStream(fileStream);
var data = exif.Properties[ExifTag.ImageDescription];
exifData = (string)data.Value;
fileStream.Close();
}
using (var fileStream = storage.OpenFile(m_selectedFile.Path, FileMode.Open, FileAccess.Read, FileShare.Read))
{
bmp = bmp.FromStream(fileStream);
bmp = bmp.Rotate(90);
fileStream.Close();
}
lock (readLock)
{
using (IsolatedStorageFileStream stream = storage.CreateFile(@"shared\\transfers\" + m_selectedFile.Name))
{
bmp.SaveJpeg(stream, bmp.PixelWidth, bmp.PixelHeight, 0, 98);
stream.Close();
}
}
ExifFile exifRotated;
using (var fileStream = storage.OpenFile(m_selectedFile.Path, FileMode.Open, FileAccess.Read, FileShare.Read))
{
exifRotated = ExifFile.ReadStream(fileStream);
fileStream.Close();
byte[] data = Encoding.UTF8.GetBytes(exifData);
uint length = (uint)data.Length;
ushort type = 2;
var imgDescProp = ExifPropertyFactory.Get(0x010e, type, length, data, BitConverterEx.ByteOrder.BigEndian, IFD.Zeroth);
exifRotated.Properties.Add(ExifTag.ImageDescription, imgDescProp);
}
lock (readLock)
{
using (IsolatedStorageFileStream targetStream = storage.OpenFile(m_selectedFile.Path, FileMode.Create, FileAccess.Write, FileShare.None))
{
exifRotated.SaveStream(targetStream);
targetStream.Close();
}
}
previewImage.Source = bmp;
}
}
if (m_selectedThumbFile != null)
{
using (IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication())
{
var bmp = new WriteableBitmap(0, 0);
bool exist = storage.FileExists(m_selectedThumbFile.Path);
if (exist)
{
using (var fileStream = storage.OpenFile(m_selectedThumbFile.Path, FileMode.Open, FileAccess.Read, FileShare.None))
{
bmp = bmp.FromStream(fileStream);
bmp = bmp.Rotate(90);
fileStream.Close();
}
lock (readLock)
{
using (IsolatedStorageFileStream stream = storage.CreateFile(@"shared\\transfers\" + m_selectedThumbFile.Name))
{
bmp.SaveJpeg(stream, bmp.PixelWidth, bmp.PixelHeight, 0, 98);
stream.Close();
}
}
viewModel.PhotoList[m_selectionIndex - 1].ImageSource = new BitmapImage(new Uri(m_selectedThumbFile.Path))
{
CreateOptions = BitmapCreateOptions.IgnoreImageCache
};
}
}
}
}