import com.leapmotion.leap.GestureList; //导入依赖的package包/类
public void onFrame(Controller controller)
{
  Frame frame = controller.frame();

  GestureList gestures = frame.gestures();

  for (Gesture gesture : gestures)
  {
    processGestureEvent(gesture);
  }

  if (frame.hands().isEmpty())
  {
    processNoDetectionEvent();
  } else
  {
    Hand hand = frame.hands().get(0);
    processDetectionEvent(hand);
  }
}
 

import com.leapmotion.leap.GestureList; //导入依赖的package包/类
public GestureListObj(GestureList list, FrameObj frame, ControllerObj controller) {
	this.controller = controller;
	gestures = new ArrayList<GestureObj>();
	
	for (Gesture g : list) {
		gestures.add(new GestureObj(g, frame, controller));
	}
}
 

import com.leapmotion.leap.GestureList; //导入依赖的package包/类
private void processGestures(Controller controller) {
    GestureList list = controller.frame().gestures();
    //TODO: Hmm, this if isn't actually needed, is it? list.count() == 0 will skip the loop anyway
    if (!list.isEmpty()) {
        for (int i = 0; i < list.count(); i++) {
            Gesture gesture = list.get(i);
            invokeCallback(gesture);
            printGestureDetails(gesture, controller);
        }
    }
}
 

import com.leapmotion.leap.GestureList; //导入依赖的package包/类
@Override
public void onFrame(Controller controller) {
    Frame frame = controller.frame();
    if (!frame.hands().isEmpty()) {
        numHands.set(frame.hands().count());
        Screen screen = controller.locatedScreens().get(0);
        if (screen != null && screen.isValid()){
            Hand hand;
            if(numHands.get()>1){
                hand=frame.hands().leftmost();
            } else {
                hand=frame.hands().get(0);
            }
            z1.set(hand.palmPosition().getZ());
            pitchLeftAverage.add(new Double(hand.direction().pitch()));
            rollLeftAverage.add(new Double(hand.palmNormal().roll()));
            yawLeftAverage.add(new Double(hand.direction().yaw()));                   
            pitchLeft.set(dAverage(pitchLeftAverage));
            rollLeft.set(dAverage(rollLeftAverage));
            yawLeft.set(dAverage(yawLeftAverage));

            Vector intersect = screen.intersect(hand.palmPosition(),hand.direction(), true);
            posLeftAverage.add(intersect);
            Vector avIntersect=vAverage(posLeftAverage);
            posHandLeft.setValue(new Point3D(screen.widthPixels()*Math.min(1d,Math.max(0d,avIntersect.getX())),
                    screen.heightPixels()*Math.min(1d,Math.max(0d,(1d-avIntersect.getY()))),
                    hand.palmPosition().getZ()));
        }               
    }
    
    GestureList gestures = frame.gestures();
    for (int i = 0; i < gestures.count(); i++) {
        Gesture gesture = gestures.get(i);
        if(gesture.type()==Type.TYPE_CIRCLE){
            CircleGesture cGesture = new CircleGesture(gesture);
            if(numHands.get()>1){
                for(Hand h:cGesture.hands()){
                    if(h.equals(frame.hands().rightmost())){
                        circle.set(cGesture);
                        break;
                    }
                }
            }
            break;
        }
    }
}
 

import com.leapmotion.leap.GestureList; //导入依赖的package包/类
public void onFrame(Controller controller) {
    // Get the most recent frame and report some basic information
    Frame frame = controller.frame();
    /*System.out.println("Frame id: " + frame.id()
                     + ", timestamp: " + frame.timestamp()
                     + ", hands: " + frame.hands().count()
                     + ", fingers: " + frame.fingers().count()
                     + ", tools: " + frame.tools().count()
                     + ", gestures " + frame.gestures().count());
    //*/
    
    if (frame.hands().count() == 1 && frame.fingers().count() == 0) {
    	// One hand, closed fist = set volume.
    	//System.out.println(frame.hands().get(0).palmPosition().getY());
    	
    	this.pushVolumeSample(frame.hands().get(0).palmPosition().getY());
    }

    GestureList gestures = frame.gestures();
    for (int i = 0; i < gestures.count(); i++) {
        Gesture gesture = gestures.get(i);

        switch (gesture.type()) {
            case TYPE_SWIPE:
                SwipeGesture swipe = new SwipeGesture(gesture);
                //System.out.println("Swipe id: " + swipe.id()
                //           + ", " + swipe.state()
                //           + ", position: " + swipe.position()
                //           + ", direction: " + swipe.direction()
                //           + ", speed: " + swipe.speed());
                if (swipe.state().toString().equals("STATE_STOP")) {
                	// Only listen to the end of the swipe, as a quick and dirty proxy for a swipe.
                	if (swipe.speed() > SWIPE_SPEED_MINIMUM) {
                		if (swipe.direction().getX() > SWIPE_DIRECTEDNESS_THRESHOLD) {
                			// Swipe to the right is to pause.
                			this.updateCommand(CMD_PAUSE, 0.0f);
                		}
                		else if (swipe.direction().getX() < -SWIPE_DIRECTEDNESS_THRESHOLD) {
                			// Swipe to the left is to play.
                			this.updateCommand(CMD_PLAY, 0.0f);
                		}
                	}
                }
                break;
            default:
                break;
        }
    }
}