/// <summary>
/// 创建指定自定义块类型对应的视图。
/// </summary>
/// <param name="evm"></param>
/// <param name="customBlockType"></param>
/// <returns></returns>
private LogicalView CreateCustomBlockView(EntityViewMeta evm, BlockType customBlockType)
{
ICustomViewFactory factory = null;
if (!this._factories.TryGetValue(customBlockType, out factory)) throw new InvalidOperationException("还没有注册对应块类型 ｛" + customBlockType + "｝ 的视图构造器。请使用 RegisterBlockType 方法注册。");
var view = factory.CreateView(evm);
this.OnViewCreated(view);
return view;
}
/// <summary>
/// 注册一个新的块类型。
/// </summary>
/// <param name="blockType">新的块类型</param>
/// <param name="factory">该块类型对应的视图构造工厂。</param>
public void RegisterCustomBlock(BlockType blockType, ICustomViewFactory factory)
{
if (blockType.Id <= 10) throw new InvalidOperationException("自定义块的类型值，需要大于 10。（10 以内的值是 Rafy 系统预留块）。");
this._factories[blockType] = factory;
}