private void SetupRequest(string collectionId)
{
Session.LocalSpace.GetAll("Frame", typeof(int), typeof(FramePayload));
_lastCollection = collectionId;
SlideShower.NewCollection(NumberOfPages);
foreach (var page in Enumerable.Range(1, NumberOfPages))
{
Space.Put("FramePayloadRequest", collectionId, Session.Username, page);
}
}
private void AssumeControl()
{
var tuple = ConcealedSpace.Get("ControlLock", typeof(string), typeof(int));
CollectionIdentifier = tuple.Get <string>(1);
NumberOfPages = tuple.Get <int>(2);
_controlling = true;
SlideShower.InControl = true;
SlideShower.NewCollection(NumberOfPages);
}
public SlideShowerViewModel()
{
SlideShower = new SlideShower(new DirectoryInfo(defaultDir));
SlideShower.Shuffle();
InitCommands();
SlideShower.ImageChanged += () =>
{
OnPropertyChanged("CurrentFilePath");
OnPropertyChanged("Placement");
};
SlideShower.StatusChanged += () => OnPropertyChanged("CurrentStatus");
}
private void SetupSlides(IEnumerable <byte[]> imageBitstreams)
{
FlushFrames();
CollectionIdentifier = Guid.NewGuid().ToString();
ConcealedSpace.Put("ControlLock", CollectionIdentifier, imageBitstreams.Count());
ConcealedSpace.Put("ActiveCollection", CollectionIdentifier, imageBitstreams.Count());
SlideShower.NewCollection(imageBitstreams.Count());
var i = 1;
foreach (var bs in imageBitstreams)
{
ConcealedSpace.Put("Frame", i, new FramePayload {
PageNumber = i++, Bitstream = bs
});
}
Running = true;
}
private void SyncWithHost()
{
SendToken();
//("SlideSync", collectionId, rtoken.ResponseToken, identifier, _lastPage, pages)
var tuple = Space.Get("SlideSync", typeof(string), _lastToken.ResponseToken, Session.Username, typeof(int), typeof(int));
NumberOfPages = tuple.Get <int>(5);
var page = tuple.Get <int>(4);
var collectionId = tuple.Get <string>(1);
if (string.IsNullOrEmpty(_lastCollection) || collectionId != _lastCollection)
{
SetupRequest(collectionId);
}
var ftuple = Session.LocalSpace.Query("Frame", page, typeof(FramePayload));
var payload = ftuple.Get <FramePayload>(2);
SlideShower.UpdateSlide(payload);
}
private void Consumer()
{
SyncWithHost();
while (true)
{
SendToken();
var tuple = Space.Get("SlideChange", typeof(string), _lastToken.ResponseToken, Session.Username, typeof(int), typeof(int));
var page = tuple.Get <int>(4);
NumberOfPages = tuple.Get <int>(5);
var collectionId = tuple.Get <string>(1);
if (_lastCollection != collectionId)
{
SetupRequest(collectionId);
}
var ftuple = Session.LocalSpace.Query("Frame", page, typeof(FramePayload));
var payload = ftuple.Get <FramePayload>(2);
SlideShower.UpdateSlide(payload);
}
}
