protected MouseState GetMousePointerEventDataForMrtkPointer(PointerData pointerData)
{
IMixedRealityPointer pointer = pointerData.pointer;
// Reset the RaycastCamera for projecting (used in calculating deltas)
Debug.Assert(pointer.Rays != null && pointer.Rays.Length > 0);
RaycastCamera.transform.position = pointer.Rays[0].Origin;
RaycastCamera.transform.rotation = Quaternion.LookRotation(pointer.Rays[0].Direction);
// Populate eventDataLeft
pointerData.eventDataLeft.Reset();
// The RayCastCamera is placed so that the current cursor position is in the center of the camera's view space.
Vector3 viewportPos = new Vector3(0.5f, 0.5f, 1.0f);
Vector2 newPos = RaycastCamera.ViewportToScreenPoint(viewportPos);
// Populate initial data or drag data
Vector2 lastPosition;
if (pointerData.lastMousePoint3d == null)
{
// For the first event, use the same position for 'last' and 'new'.
lastPosition = newPos;
}
else
{
// Otherwise, re-project the last pointer position.
lastPosition = RaycastCamera.WorldToScreenPoint(pointerData.lastMousePoint3d.Value);
}
// Save off the 3D position of the cursor.
pointerData.lastMousePoint3d = RaycastCamera.ViewportToWorldPoint(viewportPos);
// Calculate delta
pointerData.eventDataLeft.delta = newPos - lastPosition;
pointerData.eventDataLeft.position = newPos;
// Move the press position to allow dragging
pointerData.eventDataLeft.pressPosition += pointerData.eventDataLeft.delta;
// Populate raycast data
pointerData.eventDataLeft.pointerCurrentRaycast = (pointer.Result?.Details.Object != null) ? pointer.Result.Details.LastGraphicsRaycastResult : new RaycastResult();
// TODO: Simulate raycast for 3D objects?
// Populate the data for the buttons
pointerData.eventDataLeft.button = PointerEventData.InputButton.Left;
pointerData.mouseState.SetButtonState(PointerEventData.InputButton.Left, StateForPointer(pointerData), pointerData.eventDataLeft);
// Need to provide data for middle and right button for MouseState, although not used by MRTK pointers.
CopyFromTo(pointerData.eventDataLeft, pointerData.eventDataRight);
pointerData.eventDataRight.button = PointerEventData.InputButton.Right;
pointerData.mouseState.SetButtonState(PointerEventData.InputButton.Right, PointerEventData.FramePressState.NotChanged, pointerData.eventDataRight);
CopyFromTo(pointerData.eventDataLeft, pointerData.eventDataMiddle);
pointerData.eventDataMiddle.button = PointerEventData.InputButton.Middle;
pointerData.mouseState.SetButtonState(PointerEventData.InputButton.Middle, PointerEventData.FramePressState.NotChanged, pointerData.eventDataMiddle);
return(pointerData.mouseState);
}
protected void UpdateMousePointerEventData(PointerData pointerData)
{
using (UpdateMousePointerEventDataPerfMarker.Auto())
{
IMixedRealityPointer pointer = pointerData.pointer;
// Reset the RaycastCamera for projecting (used in calculating deltas)
Debug.Assert(pointer.Rays != null && pointer.Rays.Length > 0);
if (pointer.Controller != null && pointer.Controller.IsRotationAvailable)
{
RaycastCamera.transform.SetPositionAndRotation(pointer.Rays[0].Origin, Quaternion.LookRotation(pointer.Rays[0].Direction));
}
else
{
// The pointer.Controller does not provide rotation, for example on HoloLens 1 hands.
// In this case pointer.Rays[0].Origin will be the head position, but we want the
// hand to do drag operations, not the head.
// pointer.Position gives the position of the hand, use that to compute drag deltas.
RaycastCamera.transform.SetPositionAndRotation(pointer.Position, Quaternion.LookRotation(pointer.Rays[0].Direction));
}
// Populate eventDataLeft
pointerData.eventDataLeft.Reset();
// The RayCastCamera is placed so that the current cursor position is in the center of the camera's view space.
Vector3 viewportPos = new Vector3(0.5f, 0.5f, 1.0f);
Vector2 newPos = RaycastCamera.ViewportToScreenPoint(viewportPos);
// Populate initial data or drag data
Vector2 lastPosition;
if (pointerData.lastMousePoint3d == null)
{
// For the first event, use the same position for 'last' and 'new'.
lastPosition = newPos;
}
else
{
// Otherwise, re-project the last pointer position.
lastPosition = RaycastCamera.WorldToScreenPoint(pointerData.lastMousePoint3d.Value);
}
// Save off the 3D position of the cursor.
pointerData.lastMousePoint3d = RaycastCamera.ViewportToWorldPoint(viewportPos);
// Calculate delta
pointerData.eventDataLeft.delta = newPos - lastPosition;
pointerData.eventDataLeft.position = newPos;
// Move the press position to allow dragging
pointerData.eventDataLeft.pressPosition += pointerData.eventDataLeft.delta;
// Populate raycast data
pointerData.eventDataLeft.pointerCurrentRaycast = pointer.Result != null ? pointer.Result.Details.LastGraphicsRaycastResult : new RaycastResult();
// TODO: Simulate raycast for 3D objects?
// Populate the data for the buttons
pointerData.eventDataLeft.button = PointerEventData.InputButton.Left;
pointerData.mouseState.SetButtonState(PointerEventData.InputButton.Left, StateForPointer(pointerData), pointerData.eventDataLeft);
// Need to provide data for middle and right button for MouseState, although not used by MRTK pointers.
CopyFromTo(pointerData.eventDataLeft, pointerData.eventDataRight);
pointerData.eventDataRight.button = PointerEventData.InputButton.Right;
pointerData.mouseState.SetButtonState(PointerEventData.InputButton.Right, PointerEventData.FramePressState.NotChanged, pointerData.eventDataRight);
CopyFromTo(pointerData.eventDataLeft, pointerData.eventDataMiddle);
pointerData.eventDataMiddle.button = PointerEventData.InputButton.Middle;
pointerData.mouseState.SetButtonState(PointerEventData.InputButton.Middle, PointerEventData.FramePressState.NotChanged, pointerData.eventDataMiddle);
}
}
