/// <summary>
/// Comparison implementation
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public int CompareTo(object obj)
{
if (obj is DisplayLayer)
{
DisplayLayer other = (DisplayLayer)obj;
return(DisplayOrdering.CompareTo(other.DisplayOrdering));
}
return(0);
}
/// <summary>
/// Draw all visible layers
/// </summary>
/// <param name="parameters"></param>
public void Draw(RenderingParameters parameters)
{
for (int i = 0; i < Layers.Count; i++)
{
DisplayLayer layer = Layers[i];
if (layer.Visible)
{
layer.Draw(parameters);
}
}
}
/// <summary>
/// Load the specified layer type into the layer table.
/// </summary>
/// <param name="layerType">The type of layer to load. Must derive from DisplayLayer.</param>
/// <returns></returns>
public bool LoadLayer(Type layerType)
{
if (typeof(DisplayLayer).IsAssignableFrom(layerType) && !layerType.IsAbstract)
{
if (!Layers.ContainsType(layerType))
{
DisplayLayer dLayer = (DisplayLayer)Activator.CreateInstance(layerType);
Layers.Add(dLayer);
return(true);
}
}
return(false);
}