public static ZoomOut IsZoomOut(Leap.Frame frame)
{
if (frame.IsValid)
{
Leap.HandList hands = frame.Hands;
if ((hands[0].IsValid && hands[1].IsValid) && handsTogether(hands[0], hands[1]))
{
if ((hands.Leftmost.PalmVelocity.x < 500) && (hands.Rightmost.PalmVelocity.x > -500))
{
ZoomOut zoomOut = new ZoomOut(CustomGestureType.ZOOM_OUT, frame);
return(zoomOut);
}
else if (other != null)
{
if (other.State.Equals(GestureState.END) || other.State.Equals(GestureState.NA))
{
other._state = GestureState.NA;
return(other);
}
else
{
other._state = GestureState.END;
return(other);
}
}
}
}
return(null);
}
public ZoomOut(CustomGestureType type, Leap.Frame frame)
: base(type, frame)
{
if (other != null)
{
if (other.State.Equals(GestureState.NA))
{
_state = GestureState.START;
}
else if (other.State.Equals(GestureState.END))
{
_state = GestureState.NA;
}
else
{
_state = GestureState.MIDDLE;
}
}
other = this;
}
public override void OnFrame(Leap.Controller controller)
{
Leap.Frame frame = controller.Frame();
Leap.InteractionBox interactionBox = frame.InteractionBox;
_pointerPosition =
interactionBox.NormalizePoint(frame.Pointables.Frontmost.TipPosition);
_standardGestures = frame.Gestures();
foreach (Leap.Gesture gesture in _standardGestures)
{
if (gesture.State.Equals(Leap.Gesture.GestureState.STATESTOP))
{
if (gesture.Type.Equals(Leap.Gesture.GestureType.TYPESWIPE))
{
Print("Finger Swipe Detected");
Leap.SwipeGesture swipe = new Leap.SwipeGesture(gesture);
Events.FingerSwipeEvent swipeEvent = new Events.FingerSwipeEvent(swipe);
OnFingerSwipeDetected(swipeEvent);
}
if (gesture.Type.Equals(Leap.Gesture.GestureType.TYPE_CIRCLE))
{
Print("Circle Gesture Detected");
Leap.CircleGesture circle = new Leap.CircleGesture(gesture);
Events.CircleEvent circleEvent = new Events.CircleEvent(circle);
OnCircleDetected(circleEvent);
}
if (gesture.Type.Equals(Leap.Gesture.GestureType.TYPE_SCREEN_TAP))
{
Print("Screen Tap Detected");
Leap.ScreenTapGesture screenTap = new Leap.ScreenTapGesture(gesture);
Events.ScreenTapEvent screenTapEvent = new Events.ScreenTapEvent(screenTap);
OnScreenTapDetected(screenTapEvent);
}
}
}
Gestures.HandSwipe handSwipe = Gestures.HandSwipe.IsHandSwipe(frame);
if (handSwipe != null)
{
if (handSwipe.State.Equals(Gestures.GestureState.END))
{
Print("Hand Swipe Detected");
Events.HandSwipeEvent swipeEvent = new Events.HandSwipeEvent(handSwipe);
OnHandSwipeDetected(swipeEvent);
}
}
Gestures.ZoomIn zoomIn = Gestures.ZoomIn.IsZoomIn(frame);
if (zoomIn != null)
{
if (zoomIn.State.Equals(Gestures.GestureState.END))
{
Print("ZoomIn Detected");
Events.ZoomInEvent zoomInEvent = new Events.ZoomInEvent(zoomIn);
OnZoomInDetected(zoomInEvent);
}
}
Gestures.ZoomOut zoomOut = Gestures.ZoomOut.IsZoomOut(frame);
if (zoomOut != null)
{
if (zoomOut.State.Equals(Gestures.GestureState.END))
{
Print("ZoomOut Detected");
Events.ZoomOutEvent zoomOutEvent = new Events.ZoomOutEvent(zoomOut);
OnZoomOutDetected(zoomOutEvent);
}
}
}