private async Task <PictureViewModel> LoadPictureAsync(string path)
{
if (string.IsNullOrEmpty(path))
{
throw new ArgumentException("Path cannot be empty");
}
PictureViewModel newPicture = PictureViewModel.CreateNew();
newPicture.Path = path;
newPicture.IsThumbnailRequested = this.IsThumbnailRequested;
try
{
newPicture.Title = Path.GetFileName(path);
if (this.IsThumbnailRequested)
{
await newPicture.LoadThumbnailAsync();
}
else
{
await newPicture.LoadImageAsync();
}
}
catch (ArgumentException)
{
throw;
}
return(newPicture);
}
private static async Task <PictureViewModel> LoadPictureAsync(string filename)
{
return(await Task.Run(() =>
{
PictureViewModel newPicture = PictureViewModel.CreateNew();
newPicture.Title = Path.GetFileName(filename);
newPicture.Path = Path.GetFullPath(filename);
newPicture.LoadImage(filename);
newPicture.CreationDate = File.GetCreationTimeUtc(Path.GetFullPath(filename));
return newPicture;
}));
}
/// <summary>
/// Creates a new ViewModel.
/// </summary>
/// <returns></returns>
internal static PictureViewModel CreateNew()
{
PictureViewModel newViewModel = new PictureViewModel(new Picture());
return(newViewModel);
}