private async void BtnSave_Click(object sender, RoutedEventArgs e)
{
InkStrokeContainer container = new InkStrokeContainer();
foreach (var item in _inkStrokes)
{
container.AddStrokes(from stroke in item.GetStrokes() select stroke.Clone());
}
if (container.GetStrokes().Count > 0)
{
Windows.Storage.Pickers.FileSavePicker savePicker = new Windows.Storage.Pickers.FileSavePicker();
savePicker.SuggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.DocumentsLibrary;
savePicker.FileTypeChoices.Add("GIF with embedded ISF", new List <string>()
{
".gif"
});
savePicker.DefaultFileExtension = ".gif";
savePicker.SuggestedFileName = "PaperPencilPen001";
Windows.Storage.StorageFile file =
await savePicker.PickSaveFileAsync();
if (file != null)
{
Windows.Storage.CachedFileManager.DeferUpdates(file);
IRandomAccessStream stream = await file.OpenAsync(Windows.Storage.FileAccessMode.ReadWrite);
using (IOutputStream outputStream = stream.GetOutputStreamAt(0))
{
await container.SaveAsync(outputStream);
await outputStream.FlushAsync();
}
stream.Dispose();
Windows.Storage.Provider.FileUpdateStatus status =
await Windows.Storage.CachedFileManager.CompleteUpdatesAsync(file);
if (status == Windows.Storage.Provider.FileUpdateStatus.Complete)
{
//file saved
}
else
{
//not saved
}
}
else
{
//cancelled
}
}
}
private void InkPresenter_StrokesCollected(InkPresenter sender, InkStrokesCollectedEventArgs args)
{
var strokes = _inkSynchronizer.BeginDry();
var container = new InkStrokeContainer();
container.AddStrokes(from item in strokes
select item.Clone());
_inkStrokes.Add(container);
history.Push(_inkStrokes);
_inkSynchronizer.EndDry();
DrawingCanvas.Invalidate();
}
private void InkPresenter_StrokesCollected(InkPresenter sender, InkStrokesCollectedEventArgs args)
{
// Custom drying
var strokes = _inkSynchronizer.BeginDry();
var container = new InkStrokeContainer();
var clonedStrokes = from item in strokes select item.Clone();
container.AddStrokes(clonedStrokes);
viewModel.AddStroke(container);
_inkSynchronizer.EndDry();
drawingCanvas.Invalidate();
if (inkToShapeButton.IsChecked.Value) // Store a copy of the strokes for recognition if button is checked
{
viewModel.RecognizeStrokes(clonedStrokes);
}
else
{
viewModel.StopRecognizingStrokes();
}
}
