public void Update(Control cursor)
{
bool intersects = cursor.IntersectsWith(this);
if (intersects && !_hasIntersected)
{
// Cursor just hovered.
_hasIntersected = true;
BeginUpdateUI();
}
else if (!intersects && _hasIntersected)
{
// Cursor just left.
_hasIntersected = false;
EndUpdateUI();
}
}