public ConnectionAdorner(MyCanvas designer, Connection connection)
: base(designer)
{
this.designerCanvas = designer;
adornerCanvas = new Canvas();
this.visualChildren = new VisualCollection(this);
this.visualChildren.Add(adornerCanvas);
this.connection = connection;
this.connection.PropertyChanged += new PropertyChangedEventHandler(AnchorPositionChanged);
InitializeDragThumbs();
drawingPen = new Pen(Brushes.LightSlateGray, 1);
drawingPen.LineJoin = PenLineJoin.Round;
}
/// <summary>
/// 鼠标谈起事件
/// </summary>
/// <param name="e"></param>
protected override void OnMouseUp(MouseButtonEventArgs e)
{
bool IsExitConnections = true;
if (HitConnector != null)
{
Connector sourceConnector = this.sourceConnector; //原组件
Connector sinkConnector = this.HitConnector;//目标组件
foreach (var item in this.designerCanvas.Children)
{
if (item is Connection)
{
var sinkItem = item as Connection;
if (sinkItem.Sink.ParentDesignerItem == sinkConnector.ParentDesignerItem)
{
if (sinkItem.Sink.Name == sinkConnector.Name)
{
IsExitConnections = false;
MessageBox.Show("这两点之间已经存在线条，请换其他节点！", "提示框");
break;
}
}
}
}
bool _existParentElement = TraversalParentElement(sourceConnector.ParentDesignerItem, sinkConnector.ParentDesignerItem);
if (_existParentElement)
{
IsExitConnections = false;
MessageBox.Show("该操作违反流程配置原则", "提示框");
}
if (IsExitConnections)
{
var tmp = sourceConnector.FindVisualTreeAncestor(x => x is DesignerItem) as DesignerItem;
Connection newConnection = new Connection(sourceConnector, sinkConnector,tmp.ConditionList);//在原组件和目标组件之间画一条线
this.designerCanvas.Children.Add(newConnection);
Canvas.SetZIndex(newConnection, 2);
if (sinkConnector.ParentDesignerItem != null)
{
if (sinkConnector.ParentDesignerItem.IsDragConnectionOver == true)
{
sinkConnector.ParentDesignerItem.ParentSerialNumber = sourceConnector.ParentDesignerItem.CurrentSerialNumber;
}
}
}
}
if (HitDesignerItem != null)
{
this.HitDesignerItem.IsDragConnectionOver = false;
}
if (this.IsMouseCaptured) this.ReleaseMouseCapture();
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(this.designerCanvas);
if (adornerLayer != null)
{
adornerLayer.Remove(this);
}
}
/// <summary>
/// 打开流程
/// </summary>
/// <param name="tradeFlowListEntity">交易流程实体层</param>
/// <param name="typeList">组件类型列表</param>
/// <param name="subRelListEntity">映射关系实体层</param>
public void Open(List<T_plt_tradeFlowEntity> tradeFlowListEntity, List<Label> typeList, List<T_plt_subrelEntity> subRelListEntity)
{
#region 初始化
flowList = new List<TradeFlow>(); //流程实例列表
var sublist = new List<SubRel>();//参数关系列表
//List<string> connectionOverList = new List<string>();//零时序号列表
if (SerialNumber != null)
{
SerialNumber.Clear(); //清空序号
}
Children.Clear();//清空画布
SelectService.ClearSelection();//清空画布引用关系
#endregion
#region 实体转换
if (tradeFlowListEntity != null)
{
if (tradeFlowListEntity.Count() > 0)
{
tradeFlowListEntity.ForEach(x5 =>
{
var flow = new TradeFlow();
flow.TradeCode = x5.TxCode.Trim();
flow.CompCode = x5.CompCode.Trim();
flow.Trade_Flow = x5.TradeFlow.Trim();
flow.FlowCode = x5.FlowCode.Trim();
flowList.Add(flow);
});
}
}
if (subRelListEntity != null)
{
if (subRelListEntity.Count() > 0)
{
subRelListEntity.ForEach(x =>
{
var rel = new SubRel();
rel.TradeCode = x.tx_code.Trim();
rel.CompCode = x.comp_code.Trim();
rel.OutData = x.out_data.Trim();
rel.InType = x.in_data_type.Trim()=="1"?TypeOpt.常量:TypeOpt.表达式;
rel.InData = x.in_data.Trim();
rel.Memo = x.memo.Trim();
rel.SerialNumber = x.flow_no.Trim();
sublist.Add(rel);
});
}
}
#endregion
if (flowList.Count() < 1) return; //如果不存在交易流程，返回
#region item和线的处理
LayOut();//对容器的元素进行布局
var i = 0;
foreach (Tx_Node node in m_LstNodes)
{
SerialNumber.Add(Convert.ToInt32(node.Flow_code)); //组件
var lbl = typeList.Where(z => z.Tag.ToString().Trim() == node.Component_code.Trim()).FirstOrDefault();
if (lbl != null)
{
var tmp=new List<SubRel>();
sublist.ForEach(x =>
{
if (x.SerialNumber == node.Flow_code) tmp.Add(x);
});
var item = DeserializeDesignerItem(TradeCode,node.Flow_code, node.X, node.Y, lbl, m_Connection[node.Component_code], tmp);
if (!string.IsNullOrWhiteSpace(node.Sub_tx_code.Trim()))
item.IsDragConnectionOver = true;
Canvas.SetZIndex(item, 1);
this.Children.Add(item);
ControlTemplate template = DesignerItem.GetConnectorDecoratorTemplate(item) as ControlTemplate;
DesignerItem.SetConnectorDecoratorTemplate(item, template);
}
i++;
}
this.InvalidateVisual();//使元素的呈现无效，并强制执行完整的新布局处理过程。布局循环完成后
if (m_LstEntrys == null)
{
return;
}
foreach (Tx_Entry entry in m_LstEntrys)
{
string sourceID = entry.StartNode;
string sinkID = entry.EndNode;
if (!string.IsNullOrEmpty(sinkID) && !string.IsNullOrEmpty(sourceID))
{
var sourceConnector = GetConnector(sourceID, 6);
var sinkConnector = GetConnector(sinkID, 2);
var connection = new Connection(sourceConnector, sinkConnector, entry.Condition, entry.ConditionList);
Canvas.SetZIndex(connection, 2);
this.Children.Add(connection);
}
}
#endregion
//value = SerialNumber.OrderByDescending(x2 => x2).FirstOrDefault() + 1;//出
UpdateZIndex();
}
