public async Task SaveImageDialog(ICanvasDataService canvasData, InkStrokeContainer container)
{
var picker = new FileSavePicker();
picker.FileTypeChoices.Add("JPEG images", new List <string>()
{
".jpg"
});
picker.FileTypeChoices.Add("PNG images", new List <string>()
{
".png"
});
picker.DefaultFileExtension = ".jpg";
picker.SuggestedFileName = canvasData.Name;
picker.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
var storageFile = await picker.PickSaveFileAsync();
if (storageFile != null)
{
canvasData.FullPath = storageFile.Path;
canvasData.FutureAccessToken = StorageApplicationPermissions.FutureAccessList.Add(storageFile);
var softwareBitmap = await canvasData.SaveToBitmap(container);
await ImageWriterService.WriteSoftwareBitmapToFile(storageFile, softwareBitmap);
}
}
public async Task Save(ICanvasDataService canvasData, InkStrokeContainer container)
{
if (canvasData.FullPath == null)
{
await SaveImageDialog(canvasData, container);
}
else
{
var softwareBitmap = await canvasData.SaveToBitmap(container);
var file = await StorageApplicationPermissions.FutureAccessList.GetFileAsync(canvasData.FutureAccessToken);
await ImageWriterService.WriteSoftwareBitmapToFile(file, softwareBitmap);
}
}