/// <summary>
/// Handles the touch down event.
/// </summary>
/// <param name="e">Touch event arguments.</param>
/// <returns>Touch event arguments.</returns>
protected override void OnTouchDown(TouchEventArgs e)
{
var x = e.Touches[0].X;
var y = e.Touches[0].Y;
//e.GetPosition(this.Parent, 0, out int x, out int y);
// Global coordinates to local coordinates
GHIElectronics.TinyCLR.UI.Glide.Geom.Point localPoint = new GHIElectronics.TinyCLR.UI.Glide.Geom.Point(x - Rect.X, y - Rect.Y);
if (_knob.Contains(localPoint))
{
_dragging = true;
Invalidate();
if (_touchThread == null || (_touchThread != null && !_touchThread.IsAlive))
{
//GlideTouch.IgnoreAllEvents = true;
_touchThread = new Thread(TouchThread);
_touchThread.Priority = ThreadPriority.Highest;
_touchThread.Start();
}
//e.StopPropagation();
return;
}
if (Rect.Contains(x, y))
{
_lastTouchX = x;
_lastTouchY = y;
RenderKnob(new Point(x, y));
//e.StopPropagation();
}
var evt = new RoutedEvent("TouchDownEvent", RoutingStrategy.Bubble, typeof(RoutedEventHandler));
var args = new RoutedEventArgs(evt, this);
//this.Click?.Invoke(this, args);
e.Handled = args.Handled;
if (this.Parent != null)
{
this.Invalidate();
}
//return e;
}
/// <summary>
/// Handles the touch up event.
/// </summary>
/// <param name="e">Touch event arguments.</param>
/// <returns>Touch event arguments.</returns>
protected override void OnTouchUp(TouchEventArgs e)
{
var x = e.Touches[0].X;
var y = e.Touches[0].Y;
//e.GetPosition(this.Parent, 0, out int x, out int y);
GHIElectronics.TinyCLR.UI.Glide.Geom.Point localPoint = new GHIElectronics.TinyCLR.UI.Glide.Geom.Point(x - Rect.X, y - Rect.Y);
if (_knob.Contains(localPoint))
{
if (_dragging)
{
_dragging = false;
Invalidate();
//e.StopPropagation();
}
}
else
{
if (_dragging)
{
_dragging = false;
Invalidate();
}
}
//return e;
var evt = new RoutedEvent("TouchUpEvent", RoutingStrategy.Bubble, typeof(RoutedEventHandler));
var args = new RoutedEventArgs(evt, this);
//this.Click?.Invoke(this, args);
e.Handled = args.Handled;
//this.isPressed = false;
if (this.Parent != null)
{
this.Invalidate();
}
}
