/// <summary>
/// Determines whether the specified ev has scroll.
/// </summary>
/// <param name="ev">The ev.</param>
/// <returns><c>true</c> if the specified ev has scroll; otherwise, <c>false</c>.</returns>
public bool HasScroll(ParsedDeviceEvent ev)
{
foreach (var val in ev.Valuators)
{
if (Scrollers.Any(s => s.Number == val.Key))
{
return(true);
}
}
return(false);
}
/// <summary>
/// Called when [device event].
/// </summary>
/// <param name="client">The client.</param>
/// <param name="ev">The ev.</param>
private void OnDeviceEvent(IXI2Client client, ParsedDeviceEvent ev)
{
if (ev.Type == XiEventType.XI_TouchBegin ||
ev.Type == XiEventType.XI_TouchUpdate ||
ev.Type == XiEventType.XI_TouchEnd)
{
var type = ev.Type == XiEventType.XI_TouchBegin ?
RawPointerEventType.TouchBegin :
(ev.Type == XiEventType.XI_TouchUpdate ?
RawPointerEventType.TouchUpdate :
RawPointerEventType.TouchEnd);
client.ScheduleXI2Input(new RawTouchEventArgs(client.TouchDevice,
ev.Timestamp, client.InputRoot, type, ev.Position, ev.Modifiers, ev.Detail));
return;
}
if (_multitouch && ev.Emulated)
{
return;
}
if (ev.Type == XiEventType.XI_Motion)
{
Vector scrollDelta = default;
foreach (var v in ev.Valuators)
{
foreach (var scroller in _pointerDevice.Scrollers)
{
if (scroller.Number == v.Key)
{
var old = _pointerDevice.Valuators[scroller.Number].Value;
// Value was zero after reset, ignore the event and use it as a reference next time
if (old == 0)
{
continue;
}
var diff = (old - v.Value) / scroller.Increment;
if (scroller.ScrollType == XiScrollType.Horizontal)
{
scrollDelta = scrollDelta.WithX(scrollDelta.X + diff);
}
else
{
scrollDelta = scrollDelta.WithY(scrollDelta.Y + diff);
}
}
}
}
if (scrollDelta != default)
{
client.ScheduleXI2Input(new RawMouseWheelEventArgs(client.MouseDevice, ev.Timestamp,
client.InputRoot, ev.Position, scrollDelta, ev.Modifiers));
}
if (_pointerDevice.HasMotion(ev))
{
client.ScheduleXI2Input(new RawPointerEventArgs(client.MouseDevice, ev.Timestamp, client.InputRoot,
RawPointerEventType.Move, ev.Position, ev.Modifiers));
}
}
if (ev.Type == XiEventType.XI_ButtonPress || ev.Type == XiEventType.XI_ButtonRelease)
{
var down = ev.Type == XiEventType.XI_ButtonPress;
var type =
ev.Button == 1 ? (down ? RawPointerEventType.LeftButtonDown : RawPointerEventType.LeftButtonUp)
: ev.Button == 2 ? (down ? RawPointerEventType.MiddleButtonDown : RawPointerEventType.MiddleButtonUp)
: ev.Button == 3 ? (down ? RawPointerEventType.RightButtonDown : RawPointerEventType.RightButtonUp)
: (RawPointerEventType?)null;
if (type.HasValue)
{
client.ScheduleXI2Input(new RawPointerEventArgs(client.MouseDevice, ev.Timestamp, client.InputRoot,
type.Value, ev.Position, ev.Modifiers));
}
}
_pointerDevice.UpdateValuators(ev.Valuators);
}