private void OnTouchEvent(TouchActivityEvent ev)
{
for (int i = 0; i < ev.Pointers.Count; ++i)
{
TouchActivityEvent.PointerInfo pointer = ev.Pointers[i];
switch (ev.Action)
{
case MotionEventActions.Down:
case MotionEventActions.PointerDown:
{
TouchDown?.Invoke(this, pointer.X, pointer.Y, pointer.Id);
break;
}
case MotionEventActions.Up:
case MotionEventActions.PointerUp:
{
TouchUp?.Invoke(this, pointer.X, pointer.Y, pointer.Id);
break;
}
case MotionEventActions.Move:
{
TouchMove?.Invoke(this, pointer.X, pointer.Y, pointer.Id);
break;
}
}
}
}
private void OnTouchUp(int touchId, Direction side, Vector2 point)
{
if (null != TouchUp)
{
TouchUp.Invoke(touchId, side, point);
}
}
public void InvokeTouchUp(double Pos)
{
TouchUp.Invoke(this, new SeekBarUpdateArgs()
{
Position = Pos
});
}
public override void TouchesCancelled(NSSet touches, UIEvent?evt)
{
base.TouchesCancelled(touches, evt);
var viewPoints = this.GetPointsInView(evt);
PointF viewPoint = viewPoints.Length > 0 ? viewPoints[0] : PointF.Zero;
var point = new Point(viewPoint.X, viewPoint.Y);
TouchUp?.Invoke(this, new TouchEventArgs(point));
}
public PlatformSlider()
{
TouchDownEvent = delegate
{
TouchDown?.Invoke(this, EventArgs.Empty);
};
TouchUpEvent = delegate
{
TouchUp?.Invoke(this, EventArgs.Empty);
};
}
public Seeker()
{
TouchDownEvent = delegate
{
TouchDown?.Invoke(this, EventArgs.Empty);
};
TouchUpEvent = delegate
{
TouchUp?.Invoke(this, EventArgs.Empty);
};
}
internal void Internal_OnTouchUp(ref Vector2 pointerPosition, int pointerId)
{
Vector2 pos = pointerPosition / _dpiScale;
bool handled = false;
TouchUp?.Invoke(ref pos, pointerId, ref handled);
if (handled)
{
return;
}
GUI.OnTouchUp(pos, pointerId);
}
public MySlider()
{
TouchDownEvent = delegate
{
TouchDown?.Invoke(this, EventArgs.Empty);
};
TouchUpEvent = delegate
{
TouchUp?.Invoke(this, EventArgs.Empty);
};
TouchProgressChanged = delegate
{
TouchProgress?.Invoke(this, EventArgs.Empty);
};
TouchUp = delegate
{
TouchProgress?.Invoke(this, EventArgs.Empty);
};
}
internal void OnTouchUp(TouchEventArgs args)
{
_longPressTimer.Stop();
if (TouchState == TouchStates.Touched)
{
TouchState = TouchStates.Released;
TouchUp?.Invoke(this, args);
ChangeVisualState();
if (Click != null)
{
OnClick();
args.Handled = true;
}
}
else
{
TouchUp?.Invoke(this, args);
}
}
internal void ProcessUp(int id, Vector2 position, DateTime time)
{
TouchElement element;
if (!_elements.TryGetValue(id, out element))
{
return;
}
Vector2 move = position - element.Position;
element.Position = position;
element.LockedListener = null;
_elements.Remove(id);
_gesture.GestureType = GestureType.Up;
_gesture.Origin = element.Origin;
_gesture.Position = position;
_gesture.PointerCapturedBy = element.LockedListener;
_gesture.TouchId = id;
_gesture.Offset = move;
_gesture.Time = time;
OnGesture();
if (element.LockedGesture == GestureType.HoldStart)
{
_gesture.GestureType = GestureType.HoldCancel;
OnGesture();
}
if (!_gesture.Handled)
{
if (element.LockedGesture == GestureType.None)
{
if ((element.Origin - element.Position).Length() < MinDragSize && (DateTime.Now - element.DownTime).TotalMilliseconds < HoldStartTimeInMs)
{
bool doubleTap = false;
if (_lastTap.HasValue)
{
if ((element.Position - _lastTap.Value.Position).Length() < DoubleTapSize)
{
_gesture.GestureType = GestureType.DoubleTap;
OnGesture();
doubleTap = true;
if (_gesture.Handled)
{
_lastTap = null;
return;
}
}
}
_gesture.GestureType = GestureType.Tap;
OnGesture();
Tap?.Invoke(_gesture.TouchId, _gesture.Position);
if (!_gesture.Handled)
{
if (doubleTap)
{
_lastTap = null;
}
else
{
_lastTap = new LastTap()
{
Position = _gesture.Position,
Time = 0
};
}
}
}
}
}
TouchUp?.Invoke(id, position);
}
public virtual void OnTouchUp()
{
IsTouchInside = false;
TouchUp.Invoke(this);
}
private void OnTouchUp(float x, float y, ulong id)
{
TouchUp?.Invoke(this, (int)(x * _width), (int)(y * _height), id);
}
private void ProcessTouches(SensorDataEventArgs eventArgs)
{
List <EchoPoint> currPts = new List <EchoPoint>();
// first: calculate the new points
for (int i = 0; i < eventArgs.Peaks.Length; i++)
{
double distance = GetDistance(eventArgs.Peaks[i]);
double pressure = eventArgs.Amplitudes[i] / 1000.0;
pressure = Math.Min(Math.Max(0.0, pressure), 1.0);
EchoPoint echoPt = new EchoPoint(i, distance, pressure,
eventArgs.Peaks[i], eventArgs.Amplitudes[i]);
currPts.Add(echoPt);
}
// match the points
if (m_prevPoints.Count == 0)
{
// we did not have previous points
if (currPts.Count != 0)
{
// match those points to new points
for (int i = 0; i < currPts.Count; i++)
{
m_prevPoints.Add(currPts[i]);
TouchDown?.Invoke(this, new EchoPointEventArgs(currPts[i]));
}
}
else
{
// nothing to do here
}
}
else if (m_prevPoints.Count == 1)
{
// there was one previous point
if (currPts.Count == 0)
{
// the point disappeared
TouchUp?.Invoke(this, new EchoPointEventArgs(m_prevPoints[0]));
m_prevPoints.RemoveAt(0);
}
else if (currPts.Count == 1)
{
// this is the same point (double-check distance)
m_prevPoints[0].Update(currPts[0]);
TouchMove?.Invoke(this, new EchoPointEventArgs(m_prevPoints[0]));
}
else if (currPts.Count == 2)
{
// we added a point
// find out which one was the original
double distance1 = Math.Abs(currPts[0].Distance - m_prevPoints[0].Distance);
double distance2 = Math.Abs(currPts[1].Distance - m_prevPoints[0].Distance);
int correctId = m_prevPoints[0].Id == 0 ? 1 : 0;
if (distance1 > distance2)
{
// the first point is new
currPts[0].Id = correctId;
m_prevPoints[0].Update(currPts[1]);
TouchMove?.Invoke(this, new EchoPointEventArgs(m_prevPoints[0]));
m_prevPoints.Add(currPts[0]);
TouchDown?.Invoke(this, new EchoPointEventArgs(currPts[0]));
}
else
{
// the other one is new
currPts[1].Id = correctId;
m_prevPoints[0].Update(currPts[0]);
TouchMove?.Invoke(this, new EchoPointEventArgs(m_prevPoints[0]));
m_prevPoints.Add(currPts[1]);
TouchDown?.Invoke(this, new EchoPointEventArgs(currPts[1]));
}
}
}
else if (m_prevPoints.Count == 2)
{
// there were two previous points
if (currPts.Count == 0)
{
// the points disappeared
TouchUp?.Invoke(this, new EchoPointEventArgs(m_prevPoints[0]));
TouchUp?.Invoke(this, new EchoPointEventArgs(m_prevPoints[1]));
m_prevPoints.Clear();
}
else if (currPts.Count == 1)
{
// we removed only one point
// find out which one
double distance1 = Math.Abs(currPts[0].Distance - m_prevPoints[0].Distance);
double distance2 = Math.Abs(currPts[0].Distance - m_prevPoints[1].Distance);
if (distance1 > distance2)
{
// the first previous is gone
m_prevPoints[1].Update(currPts[0]);
TouchMove?.Invoke(this, new EchoPointEventArgs(m_prevPoints[1]));
TouchUp?.Invoke(this, new EchoPointEventArgs(m_prevPoints[0]));
m_prevPoints.RemoveAt(0);
}
else
{
// the second previous is gone
m_prevPoints[0].Update(currPts[0]);
TouchMove?.Invoke(this, new EchoPointEventArgs(m_prevPoints[0]));
TouchUp?.Invoke(this, new EchoPointEventArgs(m_prevPoints[1]));
m_prevPoints.RemoveAt(1);
}
}
else
{
// both are still here -> update them
bool prevFlipped = m_prevPoints[0].Distance > m_prevPoints[1].Distance;
bool currFlipped = currPts[0].Distance > currPts[1].Distance;
if ((!prevFlipped && !currFlipped) ||
(prevFlipped && currFlipped))
{
m_prevPoints[0].Update(currPts[0]);
m_prevPoints[1].Update(currPts[1]);
TouchMove?.Invoke(this, new EchoPointEventArgs(m_prevPoints[0]));
TouchMove?.Invoke(this, new EchoPointEventArgs(m_prevPoints[1]));
}
else if ((!prevFlipped && currFlipped) ||
(prevFlipped && !currFlipped))
{
m_prevPoints[0].Update(currPts[1]);
m_prevPoints[1].Update(currPts[0]);
TouchMove?.Invoke(this, new EchoPointEventArgs(m_prevPoints[0]));
TouchMove?.Invoke(this, new EchoPointEventArgs(m_prevPoints[1]));
}
}
}
}
public void OnTouchUp() => TouchUp?.Invoke(this, null);
public virtual void OnTouchUp()
{
TouchUp.Invoke(this);
}
public TouchEventSlider()
{
TouchDownEvent = (sender, args) => TouchDown?.Invoke(this, args);
TouchUpEvent = (sender, args) => TouchUp?.Invoke(this, args);
}
/// <summary>
/// Raises the <see cref="TouchUp"/> event.
/// </summary>
/// <param name="touchID">The unique identifier of the touch input.</param>
/// <param name="fingerID">The unique identifier of the finger which caused the touch.</param>
protected virtual void OnTouchUp(Int64 touchID, Int64 fingerID)
{
TouchUp?.Invoke(this, touchID, fingerID);
}
public void OnTouchUp(int x, int y, ulong id)
{
TouchUp?.Invoke(this, x, y, id);
}
public virtual void OnTouchUp(Point point)
{
TouchUp?.Invoke(this, EventArgs.Empty);
}
public virtual void OnTouchUp()
{
_startPos = null;
IsTouchInside = false;
TouchUp.Invoke(this);
}