/// <summary>
/// Registers a handler for a gesture event. The GR will be configured with the given configuration.
/// </summary>
/// <param name="grType">Type of the gesture recognizer.</param>
/// <param name="grConf">The GR's configuration.</param>
/// <param name="e">The event as string.</param>
/// <param name="handler">The listener's function that will be called when the event is raised.</param>
public static void RegisterHandler(Type grType, GRConfiguration grConf, string ev, GestureEventHandler handler)
{
lock (s_lock)
{
GestureEventRegistry.RegisterHandler(grType, grConf, ev, handler);
}
}
internal static void RegisterHandler(Type grType, GRConfiguration grConf, string ev, GestureEventHandler handler)
{
System.Diagnostics.Debug.Assert(handler.Target is IGestureListener,
"Attempting to register a handler for an instance of class " +
handler.Target.GetType().ToString() +
" which doesn't implement the interface IGestureListener.");
int priorityNumber;
if (!s_priorityNumbersTable.ContainsKeys(grType, grConf))
{
priorityNumber = 0;
s_priorityNumbersTable[grType, grConf] = priorityNumber;
}
else
priorityNumber = s_priorityNumbersTable[grType, grConf];
RegistrationInfo grInfo = new RegistrationInfo(grType, grConf, priorityNumber, ev, handler);
if (grType.IsSubclassOf(typeof(GlobalGestureRecognizer)))
{
s_ggrRegistry.Add(grInfo);
// update subscribed GRManagers
foreach (GroupGRManager grManager in s_subscribedGRManagers)
grManager.UpdateGGR(grInfo);
}
else
{
s_lgrRegistry.Add(grInfo);
// TODO: if LGRs are associated to the group's FINAL target list then dynamic update should be done
}
}
public GlobalGestureRecognizer(GRConfiguration configuration)
: base(configuration)
{
m_handlerTable = new DoubleDictionary<EventInfo, object, List<GestureEventHandler>>();
m_temporaryHandlerTable = new DoubleDictionary<TargetList, EventInfo, List<GestureEventHandler>>();
m_temporaryTargetSingletonList = new List<IGestureListener>(1);
}
public RemovingLinkGR(GRConfiguration configuration)
: base(configuration)
{
RemovingLinkGRConfiguration conf = (RemovingLinkGRConfiguration)Configuration;
m_demoObjectManager = conf.DemoObjectManager;
DefaultEvents = new string[] { "RemoveLinks" };
m_linksToRemove = new List<DemoObjectLink>();
}
public LazoGR(GRConfiguration configuration)
: base(configuration)
{
LazoGRConfiguration conf = (LazoGRConfiguration)Configuration;
m_currentTuioObjects = conf.CurrentTuioObjects;
m_threshold = conf.Threshold;
DefaultEvents = new string[] { "Lazo" };
}
public CircleGR(GRConfiguration configuration)
: base(configuration)
{
if (!(configuration is CircleGRConfiguration))
Configuration = CircleGRConfiguration.DEFAULT_Configuration;
m_configuration = (CircleGRConfiguration)Configuration;
m_threshold = m_configuration.Threshold;
m_startingTime = -1;
DefaultEvents = new string[] { "Circle" };
m_left = Settings.InputDevResolutionRatio;
m_right = 0;
m_top = 1;
m_bottom = 0;
}
/// <summary>
/// Sets the priority number to associate with the given gesture recognizer class and the
/// given configuration.
/// Note that once a priority number is set it can't be changed.
/// </summary>
/// <param name="grType">Type of the gesture recognizer.</param>
/// <param name="configuration">Configuration of the gesture recognizer.</param>
/// <param name="priorityNumber">Priority number.</param>
public static void SetPriorityNumber(Type grType, GRConfiguration configuration, int priorityNumber)
{
lock (s_lock)
{
GestureEventRegistry.SetPriorityNumber(grType, configuration, priorityNumber);
}
}
public LocalGestureRecognizer(GRConfiguration configuration)
: base(configuration)
{
}
public BasicMultiFingerGR(GRConfiguration configuration)
: base(configuration)
{
if (!(configuration is BasicMultiFingerGRConfiguration))
Configuration = new BasicMultiFingerGRConfiguration();
BasicMultiFingerGRConfiguration conf = (BasicMultiFingerGRConfiguration)Configuration;
TAP_TIME = conf.TAP_TIME;
HOVER_SIZE = conf.HOVER_SIZE;
HOVER_TIME = conf.HOVER_TIME;
IS_TRIPLE_TAP_ENABLED = conf.IS_TRIPLE_TAP_ENABLED;
ClosestCurrentEvents = new string[] { "Down", "Up", "Tap", "DoubleTap", "TripleTap", "Hover", "EndHover", "Move" }; // add, remove?
ClosestEnteringEvents = new string[] { "Enter" };
ClosestLeavingEvents = new string[] { "Leave" };
UnionEvents = new string[] { "Removed", "Terminated" };
m_hoverThread = new Thread(new ThreadStart(HoverLoop));
m_hoverThread.Start();
m_tapSpatialConstraintsOk = true;
m_numberOfCurrentFingers = 0;
m_tapNumberOfFingers = 0;
}
private readonly int m_priorityNumber; // priority number of the GR
#endregion Fields
#region Constructors
internal RegistrationInfo(Type grType, GRConfiguration grConf, int pn, string ev, GestureEventHandler handler)
{
m_grType = grType;
m_grConf = grConf;
m_priorityNumber = pn;
m_event = ev;
m_handler = handler;
}
internal static void UnregisterHandler(Type grType, GRConfiguration grConf, string ev, GestureEventHandler handler)
{
List<RegistrationInfo> registry;
if (grType.IsSubclassOf(typeof(GlobalGestureRecognizer)))
registry = s_ggrRegistry;
else
registry = s_lgrRegistry;
bool removed = registry.Remove(registry.Find(delegate(RegistrationInfo ggrInfo)
{
return
ggrInfo.GRType == grType &&
ggrInfo.GRConfiguration == grConf &&
ggrInfo.Event == ev &&
ggrInfo.Handler == handler;
}));
System.Diagnostics.Debug.WriteLineIf(!removed, "Warning: GRRegistry.UnregisterHandler did not find the handler to remove.");
}
internal static void SetPriorityNumber(Type grType, GRConfiguration configuration, int priorityNumber)
{
if (!s_priorityNumbersTable.ContainsKeys(grType, configuration))
s_priorityNumbersTable[grType, configuration] = priorityNumber;
else
System.Diagnostics.Debug.Assert(s_priorityNumbersTable[grType, configuration] == priorityNumber,
"Attempting to reset a priority number to a different value than the one previously set.");
}
public MultiTraceGR(GRConfiguration configuration)
: base(configuration)
{
m_conf = (MultiTraceGRConfiguration)Configuration;
ClosestInitialEvents = new string[] { "MultiTraceStarted" };
ClosestEnteringEvents = new string[] { "MultiTraceEnter" };
ClosestLeavingEvents = new string[] { "MultiTraceLeave" };
ClosestCurrentEvents = new string[] { "MultiTraceDown", "MultiTraceMove", "MultiTraceUp" };
ClosestFinalEvents = new string[] { "MultiTraceEnd" };
DefaultEvents = new string[] { "MultiTraceFromTo" };
m_startingTime = -1;
m_startingTraces = new List<Trace>();
m_nOfFingers = 0;
}
public PinchingGR(GRConfiguration configuration)
: base(configuration)
{
PinchingGRConfiguration conf = (PinchingGRConfiguration)configuration;
m_clientWindow = conf.ClientWindow;
m_relativeScaling = conf.RelativeScaling;
}
public GestureRecognizer(GRConfiguration configuration)
{
m_configuration = configuration;
m_armed = false;
m_bufferedHandlers = new List<GestureEventHandler>();
m_bufferedArgs = new List<GestureEventArgs>();
m_recognizing = true;
m_successful = false;
m_confidence = 1;
m_processing = true;
}
