/// <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); }