private void OnMouseInputEvent(Vector2 pixelPosition, MouseButton button, InputEventType type, float value = 0)
{
// The mouse wheel event are still received even when the mouse cursor is out of the control boundaries. Discard the event in this case.
if (type == InputEventType.Wheel && !uiControl.ClientRectangle.Contains(uiControl.PointToClient(Control.MousePosition)))
{
return;
}
// the mouse events series has been interrupted because out of the window.
if (type == InputEventType.Up && !MouseButtonCurrentlyDown[(int)button])
{
return;
}
CurrentMousePosition = NormalizeScreenPosition(pixelPosition);
var mouseInputEvent = new MouseInputEvent {
Type = type, MouseButton = button, Value = value
};
lock (MouseInputEvents)
MouseInputEvents.Add(mouseInputEvent);
if (type != InputEventType.Wheel)
{
var buttonId = (int)button;
MouseButtonCurrentlyDown[buttonId] = type == InputEventType.Down;
HandlePointerEvents(buttonId, CurrentMousePosition, InputEventTypeToPointerState(type), PointerType.Mouse);
}
}
void Mouse_ButtonDown(object sender, MouseButtonEventArgs e)
{
var button = ConvertMouseButtonFromOpenTK(e.Button);
var buttonId = (int)button;
CurrentMousePosition = new Vector2(e.X / ControlWidth, e.Y / ControlHeight);
var mouseInputEvent = new MouseInputEvent {
Type = InputEventType.Down, MouseButton = button
};
lock (MouseInputEvents)
MouseInputEvents.Add(mouseInputEvent);
MouseButtonCurrentlyDown[buttonId] = true;
HandlePointerEvents(buttonId, CurrentMousePosition, PointerState.Down, PointerType.Mouse);
}
void Mouse_ButtonUp(object sender, MouseButtonEventArgs e)
{
var button = ConvertMouseButtonFromOpenTK(e.Button);
var buttonId = (int)button;
// the mouse events series has been interrupted because out of the window.
if (!MouseButtonCurrentlyDown[buttonId])
{
return;
}
CurrentMousePosition = new Vector2(e.X / ControlWidth, e.Y / ControlHeight);
var mouseInputEvent = new MouseInputEvent {
Type = InputEventType.Up, MouseButton = button
};
lock (MouseInputEvents)
MouseInputEvents.Add(mouseInputEvent);
MouseButtonCurrentlyDown[buttonId] = false;
HandlePointerEvents(buttonId, CurrentMousePosition, PointerState.Up, PointerType.Mouse);
}
void HandlePointerEvent(WinRTPointerPoint p, PointerState ptrState)
{
var pointerType = ConvertPointerDeviceType(p.PointerDevice.PointerDeviceType);
var isMouse = pointerType == PointerType.Mouse;
var position = NormalizeScreenPosition(PointToVector2(p.Position));
if (isMouse)
{
if (ptrState == PointerState.Cancel || ptrState == PointerState.Out)
{
// invalidate mouse and current pointers
LostFocus = true;
for (int i = 0; i < MouseButtonCurrentlyDown.Length; i++)
{
if (MouseButtonCurrentlyDown[i])
{
HandlePointerEvents(i, position, PointerState.Out, pointerType);
MouseButtonCurrentlyDown[i] = false;
}
}
}
else // down/up/move
{
// Note: The problem here is that the PointerPressed event is not triggered twice when two button are pressed together.
// That is why we are forced to continuously keep the state of all buttons of the mouse.
MouseInputEvent mouseEvent;
// Trigger mouse button and pointer Down events for newly pressed buttons.
foreach (MouseButton button in Enum.GetValues(typeof(MouseButton)))
{
var buttonId = (int)button;
if (!MouseButtonCurrentlyDown[buttonId] && MouseButtonIsPressed(p.Properties, button))
{
lock (MouseInputEvents)
{
mouseEvent = new MouseInputEvent {
Type = InputEventType.Down, MouseButton = button
};
MouseInputEvents.Add(mouseEvent);
}
HandlePointerEvents(buttonId, position, PointerState.Down, pointerType);
MouseButtonCurrentlyDown[buttonId] = true;
}
}
// Trigger Move events to pointer that have changed position
if (CurrentMousePosition != position)
{
foreach (MouseButton button in Enum.GetValues(typeof(MouseButton)))
{
var buttonId = (int)button;
if (MouseButtonCurrentlyDown[buttonId])
{
HandlePointerEvents(buttonId, position, PointerState.Move, pointerType);
}
}
}
// Trigger mouse button and pointer Up events for newly released buttons.
foreach (MouseButton button in Enum.GetValues(typeof(MouseButton)))
{
var buttonId = (int)button;
if (MouseButtonCurrentlyDown[buttonId] && !MouseButtonIsPressed(p.Properties, button))
{
lock (MouseInputEvents)
{
mouseEvent = new MouseInputEvent {
Type = InputEventType.Up, MouseButton = button
};
MouseInputEvents.Add(mouseEvent);
}
HandlePointerEvents(buttonId, position, PointerState.Up, pointerType);
MouseButtonCurrentlyDown[buttonId] = false;
}
}
// Trigger mouse wheel events
if (Math.Abs(p.Properties.MouseWheelDelta) > MathUtil.ZeroTolerance)
{
lock (MouseInputEvents)
{
mouseEvent = new MouseInputEvent {
Type = InputEventType.Wheel, MouseButton = MouseButton.Middle, Value = p.Properties.MouseWheelDelta
};
MouseInputEvents.Add(mouseEvent);
}
}
}
// Update mouse cursor position
CurrentMousePosition = position;
}
else
{
HandlePointerEvents((int)p.PointerId, position, ptrState, pointerType);
}
}