public StreamThumbnailViewModel(FilteredPhotoModel photo)
{
Model = new FilteredPhotoModel(photo);
Model.FilteredThumbnailChanged += Model_FilteredThumbnailChanged;
UpdateFilteredThumbnailBitmap();
}
private static async Task <StorageFile> SavePhotoAsync(FilteredPhotoModel photo, StorageFile file)
{
CachedFileManager.DeferUpdates(file);
using (var fileStream = await file.OpenAsync(Windows.Storage.FileAccessMode.ReadWrite))
using (var photoStream = await photo.GetFilteredPhotoAsync())
using (var reader = new DataReader(photoStream))
using (var writer = new DataWriter(fileStream))
{
await reader.LoadAsync((uint)photoStream.Size);
var buffer = reader.ReadBuffer((uint)photoStream.Size);
writer.WriteBuffer(buffer);
await writer.StoreAsync();
await writer.FlushAsync();
}
var status = await CachedFileManager.CompleteUpdatesAsync(file);
if (status == Windows.Storage.Provider.FileUpdateStatus.Complete)
{
return(file);
}
else
{
return(null);
}
}
public PreviewViewModel(FilteredPhotoModel model)
{
Model = model;
Model.FilteredPhotoChanged += Model_FilteredPhotoChanged;
UpdateResolution();
UpdatePreview();
}
public ThumbnailViewModel(FilteredPhotoModel model, Filter filter, bool highlight = false)
{
Model = new FilteredPhotoModel(model);
Highlight = highlight;
_filter = filter;
Title = _filter != null ? _filter.Name : string.Empty;
Model.Filters.Add(_filter);
}
private async Task <StorageFile> SaveTemporaryPhotoAsync(FilteredPhotoModel photo)
{
var filename = Application.Current.Resources["PhotoSaveTemporaryFilename"] as string;
var folder = ApplicationData.Current.TemporaryFolder;
if (filename != null)
{
var task = folder.CreateFileAsync(filename, Windows.Storage.CreationCollisionOption.ReplaceExisting).AsTask();
task.Wait();
var file = task.Result;
CachedFileManager.DeferUpdates(file);
using (var fileStream = await file.OpenAsync(Windows.Storage.FileAccessMode.ReadWrite))
using (var photoStream = await photo.GetFilteredPhotoAsync())
using (var reader = new DataReader(photoStream))
using (var writer = new DataWriter(fileStream))
{
await reader.LoadAsync((uint)photoStream.Size);
var buffer = reader.ReadBuffer((uint)photoStream.Size);
writer.WriteBuffer(buffer);
await writer.StoreAsync();
await writer.FlushAsync();
}
var status = await CachedFileManager.CompleteUpdatesAsync(file);
if (status == Windows.Storage.Provider.FileUpdateStatus.Complete)
{
return(file);
}
else
{
return(null);
}
}
return(null);
}
public static async Task <StorageFile> SavePhotoAsync(FilteredPhotoModel photo)
{
var filenameFormat = new Windows.ApplicationModel.Resources.ResourceLoader().GetString("PhotoSaveFilenameFormat");
var filename = String.Format(filenameFormat, DateTime.Now.ToString("yyyyMMddHHmmss"));
var picker = new FileSavePicker();
picker.SuggestedFileName = filename;
picker.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
picker.FileTypeChoices.Add(".jpg", new List <string>()
{
".jpg"
});
var file = await picker.PickSaveFileAsync();
if (file != null)
{
file = await SavePhotoAsync(photo, file);
}
return(file);
}
public StreamPageViewModel(HighlightStrategy highlightStrategy)
{
HighlightStrategy = highlightStrategy;
Thumbnails = new ThumbnailCollection();
GoBackCommand = CommandFactory.CreateGoBackCommand();
SelectPhotoCommand = new DelegateCommand((parameter) =>
{
var viewModel = (ThumbnailViewModel)parameter;
try
{
var copy = new FilteredPhotoModel(viewModel.Model);
SessionModel.Instance.Photo = copy;
var frame = (Frame)Window.Current.Content;
frame.Navigate(typeof(PhotoPage));
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("SelectPhotoCommand failed: " + ex.Message + '\n' + ex.StackTrace);
}
});
#if WINDOWS_PHONE_APP
OpenPhotoCommand = new DelegateCommand(
(parameter) =>
{
StartOpenPhotoFile();
});
#else
OpenPhotoCommand = new DelegateCommand(
async(parameter) =>
{
var file = await PickPhotoFileAsync();
if (file != null)
{
SessionModel.Instance.Photo = new FilteredPhotoModel(file);
var frame = (Frame)Window.Current.Content;
frame.Navigate(typeof(PhotoPage));
}
});
#endif
#if WINDOWS_PHONE_APP
OpenFolderCommand = new DelegateCommand(
(parameter) =>
{
StartOpenPhotoFolder();
});
#else
OpenFolderCommand = new DelegateCommand(
async(parameter) =>
{
var folder = await PickPhotoFolderAsync();
if (folder != null && (SessionModel.Instance.Folder == null || folder.Path != SessionModel.Instance.Folder.Path))
{
SessionModel.Instance.Folder = folder;
await Refresh();
}
});
#endif
#if !WINDOWS_PHONE_APP
CapturePhotoCommand = new DelegateCommand(
async(parameter) =>
{
var file = await CapturePhotoFileAsync();
if (file != null)
{
SessionModel.Instance.Photo = new FilteredPhotoModel(file);
var frame = (Frame)Window.Current.Content;
frame.Navigate(typeof(PhotoPage));
}
});
#endif
#if WINDOWS_PHONE_APP
ShowAboutCommand = new DelegateCommand((parameter) =>
{
var frame = (Frame)Window.Current.Content;
frame.Navigate(typeof(AboutPage));
});
#endif
RefreshPhotosCommand = new DelegateCommand(
async(parameter) =>
{
await Refresh();
},
() =>
{
return(!Processing);
});
RefreshSomePhotosCommand = new DelegateCommand(
(parameter) =>
{
RefreshSome();
},
() =>
{
return(!Processing);
});
ChangeHighlightStrategyCommand = new DelegateCommand(
async(parameter) =>
{
HighlightStrategy = parameter as HighlightStrategy;
await Refresh();
},
() =>
{
return(!Processing);
});
}