/// <summary>
/// Reveal header.
/// </summary>
/// <param name="position">Current ScrollRect.content position.</param>
protected void Reveal(Vector2 position)
{
var header_pos = Utilites.GetTopLeftCorner(Header);
var diff = IsHorizontal
? -position.x - (-LastPosition.x)
: position.y - LastPosition.y;
if (IsHorizontal)
{
header_pos.x = Mathf.Clamp(header_pos.x - diff, -HeaderSize.x, 0f);
}
else
{
header_pos.y = Mathf.Clamp(header_pos.y + diff, 0f, HeaderSize.y);
}
Utilites.SetTopLeftCorner(Header, header_pos);
}