/// <summary>
/// Set the area that the mouse cursor is constrained to.
/// </summary>
/// <param name="area">
/// Pointer to a URect object that describes the area of the display that the mouse is allowed to occupy.
/// The given area will be clipped to the current Renderer screen area - it is never possible for the mouse
/// to leave this area. If this parameter is NULL, the constraint is set to the size of the current Renderer
/// screen area.
/// </param>
public void SetUnifiedConstraintArea(URect?area)
{
var rendererArea = new Rectf(Lunatics.Mathematics.Vector2.Zero,
System.GetSingleton().GetRenderer().GetDisplaySize());
if (area.HasValue)
{
d_constraints = area.Value;
}
else
{
d_constraints.d_min.d_x = UDim.Relative(rendererArea.d_min.X / rendererArea.Width);
d_constraints.d_min.d_y = UDim.Relative(rendererArea.d_min.Y / rendererArea.Height);
d_constraints.d_max.d_x = UDim.Relative(rendererArea.d_max.X / rendererArea.Width);
d_constraints.d_max.d_y = UDim.Relative(rendererArea.d_max.Y / rendererArea.Height);
}
ConstrainPosition();
}
/// <summary>
/// Set the area that the mouse cursor is constrained to.
/// </summary>
/// <param name="area">
/// Pointer to a Rect object that describes the area of the display that the mouse is allowed to occupy.
/// The given area will be clipped to the current Renderer screen area - it is never possible for the
/// mouse to leave this area. If this parameter is NULL, the constraint is set to the size of the current
/// Renderer screen area.
/// </param>
public void SetConstraintArea(Rectf?area)
{
var rendererArea = new Rectf(Vector2f.Zero, System.GetSingleton().GetRenderer().GetDisplaySize());
if (!area.HasValue)
{
d_constraints.d_min.d_x = UDim.Relative(rendererArea.d_min.d_x / rendererArea.Width);
d_constraints.d_min.d_y = UDim.Relative(rendererArea.d_min.d_y / rendererArea.Height);
d_constraints.d_max.d_x = UDim.Relative(rendererArea.d_max.d_x / rendererArea.Width);
d_constraints.d_max.d_y = UDim.Relative(rendererArea.d_max.d_y / rendererArea.Height);
}
else
{
var finalArea = area.Value.GetIntersection(rendererArea);
d_constraints.d_min.d_x = UDim.Relative(finalArea.d_min.d_x / rendererArea.Width);
d_constraints.d_min.d_y = UDim.Relative(finalArea.d_min.d_y / rendererArea.Height);
d_constraints.d_max.d_x = UDim.Relative(finalArea.d_max.d_x / rendererArea.Width);
d_constraints.d_max.d_y = UDim.Relative(finalArea.d_max.d_y / rendererArea.Height);
}
ConstrainPosition();
}
