/// <summary>
/// Save the primitive image and thumbnail image and return the Photo model with local url
/// </summary>
/// <param name="imageBuffer"></param>
/// <returns></returns>
public static async Task<Photo> SaveImage(IBuffer imageBuffer)
{
try
{
Photo photo = new Photo
{
CreatedTime = DateTime.UtcNow
};
AutoResizeConfiguration tbRC = null;
AutoResizeConfiguration pvRC = null;
Rect thumbnailRect;
Size pvSize;
using (var source = new BufferImageSource(imageBuffer))
{
var info = await source.GetInfoAsync();
//var thumbnailSize = ImageHelper.CalculateSize(info.ImageSize);
thumbnailRect = CalculateRect(info.ImageSize);
pvSize = CalculateSize(info.ImageSize);
tbRC = new AutoResizeConfiguration(ImageHelper.thumbnailMaxBytes, thumbnailMaxSize, new Size(0, 0), AutoResizeMode.Automatic, 0, ColorSpace.Yuv420);
pvRC = new AutoResizeConfiguration(ImageHelper.pvMaxBytes, pvSize, new Size(0, 0), AutoResizeMode.Automatic, 0, ColorSpace.Yuv420);
}
using (var store = IsolatedStorageFile.GetUserStoreForApplication())
{
//Get LocalPath
var localPath = AppResources.LocalImagePath;
if (!store.DirectoryExists(localPath))
{
store.CreateDirectory(localPath);
}
//Save the primitive bitmap file
using (var file = store.CreateFile(photo.LocalUri = localPath + @"\" + photo.Tag + @"_Raw"))
{
using (var localImage = imageBuffer.AsStream())
{
localImage.CopyTo(file);
file.Flush();
localImage.Close();
}
}
//Save Preview Image
if (pvRC != null)
{
//Resize the Image to priview image
var pvBuffer = await Nokia.Graphics.Imaging.JpegTools.AutoResizeAsync(imageBuffer, pvRC);
//Save Preview Image
using (var file = store.CreateFile(localPath + @"\" + photo.Tag + @"_Preview.jpg"))
{
photo.PreviewDetailUri = file.Name;
;
using (var localImage = pvBuffer.AsStream())
{
localImage.CopyTo(file);
file.Flush();
localImage.Close();
}
}
}
//Save thumbnail Image
if(tbRC != null)
{
//Crop to the square
var rb = await Reframe(imageBuffer, thumbnailRect);
//Resize the Image to thumbnail
var tb = await Nokia.Graphics.Imaging.JpegTools.AutoResizeAsync(rb, tbRC);
//Save thumbnail
using (var file = store.CreateFile(photo.LocalThumbnailUri = localPath + @"\" + photo.Tag + @"_Thumbnail.jpg"))
{
photo.ThumbnailDetailUri = file.Name;
using (var localImage = tb.AsStream())
{
localImage.CopyTo(file);
file.Flush();
localImage.Close();
}
}
}
}
return photo;
}
catch (Exception ex)
{
throw ex;
}
}
public bool RemovePhoto(Photo p)
{
return _imageList.Remove(p);
}
public void AddPhoto(Photo p)
{
_imageList.Add(p);
}
/// <summary>
/// 将拍摄的照片添加到照片列表中
/// </summary>
/// <param name="photo"></param>
public void AddPhotoToList(Photo photo)
{
photo.ExtensionField1 = _photoType;
_imageDataDic[_photoListIndex].AddPhoto(photo);
}
