/// <summary>
/// Create a new tooltip from passed prefab, with text as
/// content, and the trigger as the bounds to appear near.
/// </summary>
/// <param name="prefab">The `Tooltip` prefab</param>
/// <param name="text">The text to display in the tooltip</param>
/// <param name="trigger">The RectTransform that triggered
/// this tooltip. Will dictate where the tooltip will display
/// on the canvas</param>
/// <returns>The `Tooltip` that is created</returns>
public static Tooltip Create(GameObject prefab, string text, RectTransform trigger)
{
Canvas canvas = CanvasHelper.GetCanvas();
GameObject tooltipObject = GameObject.Instantiate(prefab, Vector3.zero, Quaternion.identity) as GameObject;
tooltipObject.transform.SetParent(canvas.transform);
// TODO: if the tooltip is off the screen, reposition
// should this be moved elsewhere? In the tooltip itself?
Vector3 newPosition = trigger.position;
newPosition.x += (trigger.rect.width * canvas.scaleFactor) / 2;
newPosition.y += (trigger.rect.height * canvas.scaleFactor) / 2;
tooltipObject.transform.position = newPosition;
Tooltip t = tooltipObject.GetComponent <Tooltip>();
t.Display(text);
return(t);
}