/// <summary>
/// 获取连入的图元链表
/// </summary>
/// <param name="graphElement">当前图元</param>
/// <returns>连入的图元链表</returns>
public List <GraphElement> GetPreviousGraphElements(GraphElement graphElement)
{
List <GraphElement> list = new List <GraphElement>();
if (graphElement is SlotContainer) // 当前图元是插槽容器
{
SlotContainer slotContaienr = graphElement as SlotContainer;
foreach (SlotGraphElement slot in slotContaienr.GetInSlotList())
{
if (slot.Binded)
{
list.Add(slot.BindingConnector.Line);
}
}
}
else if (graphElement is ConnectorContainer) // 当前图元是连接线控制点容器
{
ConnectorContainer line = graphElement as ConnectorContainer;
if (line.InSlotContainer != null)
{
list.Add(line.InSlotContainer);
}
}
return(list);
}
/// <summary>
/// 获取连入的所有插槽容器的链表（辅助函数）
/// </summary>
/// <param name="slotContainer">当前插槽容器</param>
/// <param name="list">当前搜索的所有插槽容器的练表</param>
public void GetAllPreviousSlotContainers(SlotContainer slotContainer, List <SlotContainer> list)
{
if (!list.Contains(slotContainer)) // 避免出现死循环
{
list.Add(slotContainer);
foreach (SlotGraphElement slot in slotContainer.GetInSlotList())
{
if (slot.Binded && slot.BindingConnector.Line.InSlotContainer != null)
{
GetAllPreviousSlotContainers(slot.BindingConnector.Line.InSlotContainer, list);
}
}
}
}