/// <summary>
/// 复制图元及其信息
/// </summary>
/// <param name="dataTable">保存图元信息的哈希表</param>
/// <returns>复制的数据</returns>
protected Hashtable CopyGraphElement(Hashtable dataTable)
{
GraphManager graphManager = data as GraphManager;
FlowChartManager flowChartManager = graphManager.CurrentFlowChartManager;
DataManager dataManager = flowChartManager.CurrentDataManager;
Hashtable copyTable = new Hashtable();
Hashtable graphTable = new Hashtable();
List <ConnectorContainer> lineList = new List <ConnectorContainer>();
List <GraphElement> graphElementList = new List <GraphElement>();
if (dataTable.Keys.Count > 1) // 复制多个图元
{
SlotContainer slotContainer;
SlotContainer newSlotContainer;
ConnectorContainer line;
ConnectorContainer newLine;
SlotGraphElement slot;
ICloneable cloneData;
EventGraphElement newEventNode;
List <EventGraphElement> eventList = new List <EventGraphElement>();
foreach (object o in dataTable.Keys)
{
GraphElement graphElement = o as GraphElement;
if (graphElement is SlotContainer) // 插槽容器
{
slotContainer = graphElement as SlotContainer;
newSlotContainer = slotContainer.Clone();
graphTable[slotContainer] = newSlotContainer;
cloneData = dataTable[slotContainer] as ICloneable;
if (slotContainer is EventGraphElement)
{
eventList.Add(slotContainer as EventGraphElement);
}
if (cloneData != null)
{
copyTable[newSlotContainer] = cloneData.Clone();
}
else
{
copyTable[newSlotContainer] = null;
}
graphElementList.Add(slotContainer);
}
else if (graphElement is ConnectorContainer) // 连接线
{
line = graphElement as ConnectorContainer;
newLine = line.Clone();
graphTable[line] = newLine;
lineList.Add(line);
cloneData = dataTable[line] as ICloneable;
if (cloneData != null)
{
copyTable[newLine] = cloneData.Clone();
}
else
{
copyTable[newLine] = null;
}
graphElementList.Add(line);
}
}
// 重新构建复制图元的连接关系
foreach (ConnectorContainer connectorContainer in lineList)
{
if (connectorContainer.InSlotContainer != null &&
graphElementList.Contains(connectorContainer.InSlotContainer))
{
newSlotContainer = graphTable[connectorContainer.InSlotContainer] as SlotContainer;
newLine = graphTable[connectorContainer] as ConnectorContainer;
slot = newSlotContainer.GetOutSlot();
slot.Bind(newLine.TailConnector);
}
if (connectorContainer.OutSlotContainer != null &&
graphElementList.Contains(connectorContainer.OutSlotContainer))
{
newSlotContainer = graphTable[connectorContainer.OutSlotContainer] as SlotContainer;
newLine = graphTable[connectorContainer] as ConnectorContainer;
slot = newSlotContainer.GetInSlot();
slot.Bind(newLine.HeadConnector);
}
}
// 重设图元对应的事件结点
if (eventList.Count > 0)
{
foreach (object o in dataTable.Keys)
{
GraphElement graphElement = o as GraphElement;
if (graphElement is SlotContainer) // 插槽容器
{
slotContainer = graphElement as SlotContainer;
if (slotContainer.EventNode != null)
{
newSlotContainer = graphTable[slotContainer] as SlotContainer;
if (eventList.Contains(slotContainer.EventNode))
{
newEventNode = graphTable[slotContainer.EventNode] as EventGraphElement;
newSlotContainer.EventNode = newEventNode;
}
else
{
newSlotContainer.EventNode = slotContainer.EventNode;
}
}
}
else if (graphElement is ConnectorContainer) // 连接线
{
line = graphElement as ConnectorContainer;
if (line.EventNode != null)
{
newLine = graphTable[line] as ConnectorContainer;
if (eventList.Contains(line.EventNode))
{
newEventNode = graphTable[line.EventNode] as EventGraphElement;
newLine.EventNode = newEventNode;
}
else
{
newLine.EventNode = line.EventNode;
}
}
}
}
}
}
else // 复制单个图元
{
GraphElement graphElement = null;
foreach (object o in dataTable.Keys)
{
graphElement = o as GraphElement;
}
ICloneable cloneData;
if (graphElement is SlotContainer) // 插槽容器
{
SlotContainer slotContainer = graphElement as SlotContainer;
SlotContainer newSlotContainer = slotContainer.Clone();
cloneData = dataTable[slotContainer] as ICloneable;
if (cloneData != null)
{
copyTable[newSlotContainer] = cloneData.Clone();
}
else
{
copyTable[newSlotContainer] = null;
}
}
else if (graphElement is ConnectorContainer) // 连接线
{
ConnectorContainer line = graphElement as ConnectorContainer;
ConnectorContainer newLine = line.Clone();
cloneData = dataTable[line] as ICloneable;
if (cloneData != null)
{
copyTable[newLine] = cloneData.Clone();
}
else
{
copyTable[newLine] = null;
}
}
}
return(copyTable);
}