private async Task DoPickImageFile()
{
try
{
var picker = new FileOpenPicker
{
ViewMode = PickerViewMode.Thumbnail,
SuggestedStartLocation = PickerLocationId.PicturesLibrary
};
picker.FileTypeFilter.Add(".jpg");
picker.FileTypeFilter.Add(".jpeg");
picker.FileTypeFilter.Add(".png");
picker.FileTypeFilter.Add(".bmp");
picker.FileTypeFilter.Add(".gif");
var file = await picker.PickSingleFileAsync();
if (file != null)
{
var stream = await file.OpenAsync(FileAccessMode.Read);
var bitmapImage = new BitmapImage();
await bitmapImage.SetSourceAsync(stream);
CurrentImageSource = bitmapImage;
ImagePixelHeight = bitmapImage.PixelHeight;
ImagePixelWidth = bitmapImage.PixelWidth;
RaisePropertyChanged(nameof(ImageResolution));
var tempFolder = ApplicationData.Current.TemporaryFolder;
var copiedFile = await file.CopyAsync(tempFolder, $"Tracing_Temp{file.FileType}", NameCollisionOption.ReplaceExisting);
InkOperator.ApplyImageFile(copiedFile);
}
}
catch (Exception ex)
{
var msg = $"{nameof(DoPickImageFile)}(): {ex.Message}";
await DialogService.ShowMessageBox(msg,
Utils.GetResource("Resources/MessageDialogTitle-Error"));
}
}
public MainViewModel(IDialogService dialogService)
{
DialogService = dialogService;
CommandToggleFullScreen = new RelayCommand(ToggleFullScreenMode);
CommandPrint = new RelayCommand(async() => await DoPrintAsync());
CommandExportInkToImage = new RelayCommand <ImageSavingOptions>(async opt => await SaveImageAsync(opt));
CommandSaveAsInkFile =
new RelayCommand(async() => await SaveAsInkFileAsync(_defaultInkFilePickerLocation));
CommandSaveAsGifFile =
new RelayCommand(async() => await SaveAsGifFileAsync(_defaultInkFilePickerLocation));
CommandSaveCurrent = new RelayCommand(async() => await SaveCurrentSessionAsync());
CommandUndo = new RelayCommand(() => { InkOperator?.UndoLastStorke(); });
CommandRedo = new RelayCommand(() => { InkOperator?.RedoLastStorke(); });
CommandLoadInkFile = new RelayCommand(async() => await OpenInkFile(_defaultInkFilePickerLocation));
ClearImageSource = new RelayCommand(() => { CurrentImageSource = null; });
CommandClearAll = new RelayCommand(async() => await DoClearAll());
CommandPickImageFile = new RelayCommand(async() => await DoPickImageFile());
CommandApplySampleImageSelection = new RelayCommand(async() => await ApplySampleImageSelection());
CommandPickRecentColor = new RelayCommand <SolidColorBrush>(DoPickRecentColor);
IsFullScreen = false;
Document = new TracingDocument
{
Type = DocumentType.TempOrNew,
Status = DocumentStatus.Saved
};
RecentColors = new Queue <Color>();
CurrentCanvasBackgroundBrush = new SolidColorBrush(Colors.White);
SampleImages = new ObservableCollection <ImageSource>(new List <ImageSource>());
for (var i = 1; i <= 2; i++)
{
SampleImages.Add(new BitmapImage(new Uri($"ms-appx:///Assets/Samples/{i}.jpg")));
}
}
