protected override void OnMouseUp(MouseButtonEventArgs e)
{
if (HitConnector != null)
{
Connector sourceConnector = this.sourceConnector;
Connector sinkConnector = this.HitConnector;
Connection newConnection = new Connection(sourceConnector, sinkConnector);
Canvas.SetZIndex(newConnection, designerCanvas.Children.Count);
this.designerCanvas.Children.Add(newConnection);
}
if (HitDesignerItem != null)
{
this.HitDesignerItem.IsDragConnectionOver = false;
}
if (this.IsMouseCaptured) this.ReleaseMouseCapture();
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(this.designerCanvas);
if (adornerLayer != null)
{
adornerLayer.Remove(this);
}
}
public static Connection add_Connection(this DesignerCanvas designerCanvas, DesignerItem designerItem1, DesignerItem designerItem2, string position1, string position2)
{
return((Connection)designerCanvas.wpfInvoke(
() => {
var connector1 = designerItem1.connector(position1);
var connector2 = designerItem2.connector(position2);
var connection = new DiagramDesigner.Connection(connector1, connector2);
designerCanvas.Children.Add(connection);
return connection;
}));
}
public ConnectionAdorner(DesignerCanvas 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;
}
protected override void OnMouseUp(MouseButtonEventArgs e)
{
if (HitConnector != null)
{
Connector sourceConnector = this.sourceConnector;
Connector sinkConnector = this.HitConnector;
Connection newConnection = new Connection(sourceConnector, sinkConnector);
// connections are added with z-index of zero
this.designerCanvas.Children.Insert(0, newConnection);
}
if (HitDesignerItem != null)
{
this.HitDesignerItem.IsDragConnectionOver = false;
}
if (this.IsMouseCaptured) this.ReleaseMouseCapture();
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(this.designerCanvas);
if (adornerLayer != null)
{
adornerLayer.Remove(this);
}
}
private void Open_Executed(object sender, ExecutedRoutedEventArgs e)
{
XElement root = LoadSerializedDataFromFile();
if (root == null)
return;
this.Children.Clear();
this.SelectionService.ClearSelection();
IEnumerable<XElement> itemsXML = root.Elements("DesignerItems").Elements("DesignerItem");
foreach (XElement itemXML in itemsXML)
{
Guid id = new Guid(itemXML.Element("ID").Value);
DesignerItem item = DeserializeDesignerItem(itemXML, id, 0, 0);
this.Children.Add(item);
SetConnectorDecoratorTemplate(item);
}
this.InvalidateVisual();
IEnumerable<XElement> connectionsXML = root.Elements("Connections").Elements("Connection");
foreach (XElement connectionXML in connectionsXML)
{
Guid sourceID = new Guid(connectionXML.Element("SourceID").Value);
Guid sinkID = new Guid(connectionXML.Element("SinkID").Value);
String sourceConnectorName = connectionXML.Element("SourceConnectorName").Value;
String sinkConnectorName = connectionXML.Element("SinkConnectorName").Value;
Connector sourceConnector = GetConnector(sourceID, sourceConnectorName);
Connector sinkConnector = GetConnector(sinkID, sinkConnectorName);
Connection connection = new Connection(sourceConnector, sinkConnector);
Canvas.SetZIndex(connection, Int32.Parse(connectionXML.Element("zIndex").Value));
this.Children.Add(connection);
}
}
private void Paste_Executed(object sender, ExecutedRoutedEventArgs e)
{
XElement root = LoadSerializedDataFromClipBoard();
if (root == null)
return;
// create DesignerItems
Dictionary<Guid, Guid> mappingOldToNewIDs = new Dictionary<Guid, Guid>();
List<ISelectable> newItems = new List<ISelectable>();
IEnumerable<XElement> itemsXML = root.Elements("DesignerItems").Elements("DesignerItem");
double offsetX = Double.Parse(root.Attribute("OffsetX").Value, CultureInfo.InvariantCulture);
double offsetY = Double.Parse(root.Attribute("OffsetY").Value, CultureInfo.InvariantCulture);
foreach (XElement itemXML in itemsXML)
{
Guid oldID = new Guid(itemXML.Element("ID").Value);
Guid newID = Guid.NewGuid();
mappingOldToNewIDs.Add(oldID, newID);
DesignerItem item = DeserializeDesignerItem(itemXML, newID, offsetX, offsetY);
this.Children.Add(item);
SetConnectorDecoratorTemplate(item);
newItems.Add(item);
}
// update group hierarchy
SelectionService.ClearSelection();
foreach (DesignerItem el in newItems)
{
if (el.ParentID != Guid.Empty)
el.ParentID = mappingOldToNewIDs[el.ParentID];
}
foreach (DesignerItem item in newItems)
{
if (item.ParentID == Guid.Empty)
{
SelectionService.AddToSelection(item);
}
}
// create Connections
IEnumerable<XElement> connectionsXML = root.Elements("Connections").Elements("Connection");
foreach (XElement connectionXML in connectionsXML)
{
Guid oldSourceID = new Guid(connectionXML.Element("SourceID").Value);
Guid oldSinkID = new Guid(connectionXML.Element("SinkID").Value);
if (mappingOldToNewIDs.ContainsKey(oldSourceID) && mappingOldToNewIDs.ContainsKey(oldSinkID))
{
Guid newSourceID = mappingOldToNewIDs[oldSourceID];
Guid newSinkID = mappingOldToNewIDs[oldSinkID];
String sourceConnectorName = connectionXML.Element("SourceConnectorName").Value;
String sinkConnectorName = connectionXML.Element("SinkConnectorName").Value;
Connector sourceConnector = GetConnector(newSourceID, sourceConnectorName);
Connector sinkConnector = GetConnector(newSinkID, sinkConnectorName);
Connection connection = new Connection(sourceConnector, sinkConnector);
Canvas.SetZIndex(connection, Int32.Parse(connectionXML.Element("zIndex").Value));
this.Children.Add(connection);
SelectionService.AddToSelection(connection);
}
}
DesignerCanvas.BringToFront.Execute(null, this);
// update paste offset
root.Attribute("OffsetX").Value = (offsetX + 10).ToString();
root.Attribute("OffsetY").Value = (offsetY + 10).ToString();
Clipboard.Clear();
Clipboard.SetData(DataFormats.Xaml, root);
}
public void Open(XElement root) // splitted Open_Executed in two so that we can open an XElement directly
{
if (root == null)
return;
this.Children.Clear();
this.SelectionService.ClearSelection();
IEnumerable<XElement> itemsXML = root.Elements("DesignerItems").Elements("DesignerItem");
foreach (XElement itemXML in itemsXML)
{
Guid id = new Guid(itemXML.Element("ID").Value);
DesignerItem item = DeserializeDesignerItem(itemXML, id, 0, 0);
this.Children.Add(item);
SetConnectorDecoratorTemplate(item);
}
this.InvalidateVisual();
IEnumerable<XElement> connectionsXML = root.Elements("Connections").Elements("Connection");
foreach (XElement connectionXML in connectionsXML)
{
Guid sourceID = new Guid(connectionXML.Element("SourceID").Value);
Guid sinkID = new Guid(connectionXML.Element("SinkID").Value);
String sourceConnectorName = connectionXML.Element("SourceConnectorName").Value;
String sinkConnectorName = connectionXML.Element("SinkConnectorName").Value;
Connector sourceConnector = GetConnector(sourceID, sourceConnectorName);
Connector sinkConnector = GetConnector(sinkID, sinkConnectorName);
if (sourceConnector != null && sinkConnector != null) //DC
{
Connection connection = new Connection(sourceConnector, sinkConnector);
Canvas.SetZIndex(connection, Int32.Parse(connectionXML.Element("zIndex").Value));
this.Children.Add(connection);
}
}
}
/*设定连线颜色*/
void SetConnectionColor(Connection connection, Brush colorBrushes)
{
_diagramControl.UpdateLayout();
var path = connection.Template.FindName("PART_ConnectionPath", connection) as Path;
if (path != null)
{
path.Stroke = colorBrushes;
//path.StrokeThickness = 2;
}
}
public void CreateHelperConnection(DesignerItem newParent, DesignerItem dragItem)
{
RemoveHelperConnection();
if (newParent == null) return;
var source = GetItemConnector(newParent, PARENT_CONNECTOR);
var sink = GetItemConnector(dragItem, CHILD_CONNECTOR);
var connection = new Connection(source, sink);
connection.toNewParent = true;
source.Connections.Add(connection);
_diagramControl.DesignerCanvas.Children.Add(connection);
SetConnectionColor(connection, Brushes.Red);
BringToFront(connection);
}
void RemoveConnection(Connection connection)
{
connection.Source.Connections.Remove(connection);
connection.Sink.Connections.Remove(connection);
connection.Source = null;
connection.Sink = null;
_diagramControl.DesignerCanvas.Children.Remove(connection);
}
/*创建非根节点时，同时创建与父节点之间的连线*/
void DrawChild(DesignerItem parent, DesignerItem childItem)
{
if (parent == null) return;
DrawDesignerItem(childItem);/*创建子节点*/
var source = GetItemConnector(parent, PARENT_CONNECTOR);
var sink = GetItemConnector(childItem, "Left");
if (source == null || sink == null) return;
#region 创建连线
var connections = GetItemConnections(parent).Where(connection
=> connection.Source.Equals(source)
&& connection.Sink.Equals(sink)).ToList();
if (connections.Count == 0 || connections.FirstOrDefault() == null)
{
var conn = new Connection(source, sink); /*创建连线*/
_diagramControl.DesignerCanvas.Children.Add(conn); /*放到画布上*/
Panel.SetZIndex(conn, -10000);
}
#endregion
childItem.CanCollapsed = true;
}
void CreateConnection(DesignerItem newParent, DesignerItem designerItem)
{
var source = GetItemConnector(newParent, PARENT_CONNECTOR);
var sink = GetItemConnector(designerItem, CHILD_CONNECTOR);
var connection = new Connection(source, sink);
source.Connections.Add(connection);
_diagramControl.DesignerCanvas.Children.Add(connection);
}