/// <summary>
/// 执行命令
/// </summary>
/// <param name="o">命令的参数</param>
/// <returns>是否执行成功</returns>
public override bool Execute(object o)
{
bool success = true;
Point currentPoint = (Point)o;
Size moveSize = Size.Empty;
// 保存命令执行前的数据
if (firstCommand) // 只有第一条命令保存执行前的数据
{
SaveBeforeExecute(flowChartManager.GetArguments());
}
description = "粘贴图元";
Hashtable table = CopyGraphElement(documentManager.CopyTable);
// 计算图元粘贴位置偏移
List <GraphElement> graphElementList = new List <GraphElement>();
foreach (object key in table.Keys)
{
graphElementList.Add(key as GraphElement);
}
moveSize = InitMoveSize(graphElementList, currentPoint);
// 加入到绘图容器中
foreach (object key in table.Keys)
{
if (key is SlotContainer) // 插槽容器
{
SlotContainer slotContainer = key as SlotContainer;
slotContainer.Move(moveSize);
graphManager.SlotContainerList.Add(slotContainer);
// 分配新的图元ID
slotContainer.ID = graphManager.AllocateGraphElementID();
// 复制数据
dataManager.AddDataElement(slotContainer);
dataManager.SetData(slotContainer, table[key]);
dataManager.ReloadData(slotContainer);
}
else if (key is ConnectorContainer) // 连接线
{
ConnectorContainer line = key as ConnectorContainer;
foreach (ConnectorGraphElement connector in line.GetConnectorList()) // 移动连接线控制点
{
if (!connector.Binded) // 连接线控制点不是连接线的头结点和尾结点
{
connector.Move(moveSize);
}
}
graphManager.ConnectorContainerList.Add(line);
// 分配新的图元ID
line.ID = graphManager.AllocateGraphElementID();
// 复制数据
dataManager.AddDataElement(line);
dataManager.SetData(line, table[key]);
dataManager.ReloadData(line);
}
}
// 检查事件结点是否有效
foreach (object key in table.Keys)
{
if (key is SlotContainer) // 插槽容器
{
SlotContainer slotContainer = key as SlotContainer;
slotContainer.Enable = dataManager.IsConnectEventNode(slotContainer);
}
else if (key is ConnectorContainer) // 连接线
{
ConnectorContainer line = key as ConnectorContainer;
line.Enable = dataManager.IsConnectEventNode(line);
}
}
flowChartManager.PasteTable = table;
if (success) // 保存命令执行后的数据
{
flowChartManager.ContentChanged = true;
SaveAfterExecute(flowChartManager.GetArguments());
}
return(success);
}
