public CanvasContent Deserialize()
{
var root = XElement.Load( myReader );
double offsetX = Double.Parse( root.Attribute( "OffsetX" ).Value, CultureInfo.InvariantCulture );
double offsetY = Double.Parse( root.Attribute( "OffsetY" ).Value, CultureInfo.InvariantCulture );
var items = new List<DesignerItem>();
var itemsXML = root.Elements( "DesignerItems" ).Elements( "DesignerItem" );
foreach( var itemXML in itemsXML )
{
var id = new Guid( itemXML.Element( "ID" ).Value );
var item = DeserializeDesignerItem( itemXML, id );
item.SetConnectorDecoratorTemplate();
items.Add( item );
}
var connections = new List<Connection>();
var connectionsXML = root.Elements( "Connections" ).Elements( "Connection" );
foreach( var connectionXML in connectionsXML )
{
var sourceID = new Guid( connectionXML.Element( "SourceID" ).Value );
var sinkID = new Guid( connectionXML.Element( "SinkID" ).Value );
var sourceConnectorName = connectionXML.Element( "SourceConnectorName" ).Value;
var sinkConnectorName = connectionXML.Element( "SinkConnectorName" ).Value;
var sourceConnector = GetConnector( items, sourceID, sourceConnectorName );
var sinkConnector = GetConnector( items, sinkID, sinkConnectorName );
var connection = new Connection( sourceConnector, sinkConnector );
connection.SourceArrowSymbol = ( ArrowSymbol )Enum.Parse( typeof( ArrowSymbol ), connectionXML.Element( "SourceArrowSymbol" ).Value );
connection.SinkArrowSymbol = ( ArrowSymbol )Enum.Parse( typeof( ArrowSymbol ), connectionXML.Element( "SinkArrowSymbol" ).Value );
connection.IsDotted = connectionXML.Element( "IsDotted" ) != null ? bool.Parse( connectionXML.Element( "IsDotted" ).Value ) : false;
Canvas.SetZIndex( connection, Int32.Parse( connectionXML.Element( "zIndex" ).Value ) );
var propertiesContent = ConvertBladeNamespaces(connectionXML.Element("Properties").Value);
using (var reader = XmlReader.Create(new StringReader(propertiesContent)))
{
var properties = (ItemPropertyCollection)XamlReader.Load(reader);
connection.Properties = properties;
}
connection.Caption = connectionXML.Element( "Caption" ).Value;
connections.Add( connection );
}
var canvas = new CanvasContent( items, connections );
canvas.AddOffset( offsetX, offsetY );
return canvas;
}
protected override void OnMouseUp( MouseButtonEventArgs e )
{
if ( HitConnector != null )
{
var newConnection = new Connection( mySourceConnector, HitConnector );
newConnection.SinkArrowSymbol = myDesignerCanvas.ArrowStyle;
Canvas.SetZIndex( newConnection, myDesignerCanvas.Children.Count );
myDesignerCanvas.Children.Add( newConnection );
}
if ( HitDesignerItem != null )
{
HitDesignerItem.IsDragConnectionOver = false;
}
if ( IsMouseCaptured )
{
ReleaseMouseCapture();
}
var adornerLayer = AdornerLayer.GetAdornerLayer( myDesignerCanvas );
if ( adornerLayer != null )
{
adornerLayer.Remove( this );
}
}
public ConnectionAdorner( DesignerCanvas designer, Connection connection )
: base( designer )
{
myDesignerCanvas = designer;
myAdornerCanvas = new Canvas();
myAdornerCanvas.Focusable = true;
myAdornerCanvas.IsEnabled = true;
myVisualChildren = new VisualCollection( this );
myVisualChildren.Add( myAdornerCanvas );
myConnection = connection;
myConnection.PropertyChanged += AnchorPositionChanged;
InitializeDragThumbs();
myDrawingPen = new Pen( Brushes.LightSlateGray, 1 );
myDrawingPen.LineJoin = PenLineJoin.Round;
Unloaded += OnUnload;
}
private XElement Serialize( Connection connection )
{
var propertiesXaml = XamlWriter.Save( connection.Properties );
Contract.Invariant(!string.IsNullOrEmpty(connection.Source.Name), "Source connector name required for serialization");
Contract.Invariant(!string.IsNullOrEmpty(connection.Sink.Name), "Sink connector name required for serialization");
return new XElement( "Connection",
new XElement( "SourceID", myIdTransformation.GetId( connection.Source.ParentDesignerItem.ID ) ),
new XElement( "SinkID", myIdTransformation.GetId( connection.Sink.ParentDesignerItem.ID ) ),
new XElement( "SourceConnectorName", connection.Source.Name ),
new XElement( "SinkConnectorName", connection.Sink.Name ),
new XElement( "SourceArrowSymbol", connection.SourceArrowSymbol ),
new XElement( "SinkArrowSymbol", connection.SinkArrowSymbol ),
new XElement( "IsDotted", connection.IsDotted ),
new XElement( "zIndex", Canvas.GetZIndex( connection ) ),
new XElement( "Properties", propertiesXaml ),
new XElement( "Caption", connection.Caption )
);
}
