/// <summary>
/// Pass touch gesture events to the children.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void TouchGestureEvent(object sender, TouchGestureEventArgs e)
{
if (_handleEvents)
OnTouchGesture(e);
}
/// <summary>
/// Handles touch gesture events.
/// </summary>
/// <param name="e">Touch event arguments.</param>
/// <returns>Touch event arguments.</returns>
public virtual TouchGestureEventArgs OnTouchGesture(TouchGestureEventArgs e)
{
return e;
}
/// <summary>
/// Triggers a gesture event.
/// </summary>
/// <param name="sender">Object associated with the event.</param>
/// <param name="args">Touch gesture event arguments.</param>
public void TriggerGestureEvent(object sender, TouchGestureEventArgs args)
{
if (GestureEvent != null)
GestureEvent(sender, args);
}
bool IEventListener.OnEvent(BaseEvent ev)
{
/// Process known events, otherwise forward as generic to MainWindow.
///
TouchEvent touchEvent = ev as TouchEvent;
if (touchEvent != null)
{
// dispatch only when the event is in the active area
for(int i = 0; i < _activeRegions.Length; ++i)
{
ActiveRectangle ar = _activeRegions[i];
// only check the first
if(ar.Contains(touchEvent.Touches[0]))
{
TouchScreenEventArgs tea = new TouchScreenEventArgs(touchEvent.Time, touchEvent.Touches, ar.Target);
switch((TouchMessages)touchEvent.EventMessage)
{
case TouchMessages.Down:
if(OnTouchDown != null)
{
OnTouchDown(this, tea);
}
break;
case TouchMessages.Up:
if(OnTouchUp != null)
{
OnTouchUp(this, tea);
}
break;
case TouchMessages.Move:
if(OnTouchMove != null)
{
OnTouchMove(this, tea);
}
break;
}
}
}
return true;
}
else if(ev is GenericEvent)
{
GenericEvent genericEvent = (GenericEvent)ev;
switch (genericEvent.EventCategory)
{
case (byte)EventCategory.Gesture:
{
TouchGestureEventArgs ge = new TouchGestureEventArgs();
ge.Gesture = (TouchGesture)genericEvent.EventMessage;
ge.X = genericEvent.X;
ge.Y = genericEvent.Y;
ge.Arguments = (ushort)genericEvent.EventData;
if (ge.Gesture == TouchGesture.Begin && OnGestureStarted != null)
{
OnGestureStarted(this, ge);
}
else if (ge.Gesture == TouchGesture.End && OnGestureEnded!= null)
{
OnGestureEnded(this, ge);
}
else if(OnGestureChanged != null)
{
OnGestureChanged(this, ge);
}
break;
}
default:
break;
}
}
return false;
}