protected void NotifyUp(InputCompletedArgs args)
{
EventArgs e = EventArgs.Empty;
_dragLock = DragLock.Unset;
_dragging = false;
if (args.IsInertial)
{
double angle = GestureHelper.AngleFromVector(args.FinalLinearVelocity.X, args.FinalLinearVelocity.Y);
if (angle <= 45 || angle >= 315)
{
angle = 0;
}
else if (angle >= 135 && angle <= 225)
{
angle = 180;
}
FlickEventArgs flickEventArgs = new FlickEventArgs
{
Angle = angle
};
ReleaseMouseCaptureAtGestureOrigin();
RaiseFlick(flickEventArgs);
}
else if (args.TotalTranslation.X != 0 || args.TotalTranslation.Y != 0)
{
DragEventArgs dragEventArgs = new DragEventArgs
{
CumulativeDistance = args.TotalTranslation
};
dragEventArgs.MarkAsFinalTouchManipulation();
e = dragEventArgs;
}
RaiseGestureEnd(e);
}
protected void NotifyMove(InputDeltaArgs args)
{
if (Math.Abs(args.CumulativeTranslation.X) > DeadZoneInPixels.Width || Math.Abs(args.CumulativeTranslation.Y) > DeadZoneInPixels.Height)
{
if (!_dragging)
{
ReleaseMouseCaptureAtGestureOrigin();
}
_dragging = true;
if (_dragLock == DragLock.Unset)
{
double angle = GestureHelper.AngleFromVector(args.CumulativeTranslation.X, args.CumulativeTranslation.Y) % 180;
_dragLock = angle <= 45 || angle >= 135 ? DragLock.Horizontal : DragLock.Vertical;
}
}
if (_dragging)
{
RaiseDragEvents(args);
}
}