private void AssignEdgesOfNodeToEdgeDragSets(GeomNode node)
{
foreach (GeomEdge edge in node.SelfEdges)
{
objectsToDrag.Insert(edge);
}
foreach (GeomEdge edge in node.InEdges)
{
if (objectsToDrag.Contains(edge.Source))
{
objectsToDrag.Insert(edge);
}
else
{
this.edgesDraggedForTheTarget.Insert(edge);
}
}
foreach (GeomEdge edge in node.OutEdges)
{
if (objectsToDrag.Contains(edge.Target))
{
objectsToDrag.Insert(edge);
}
else
{
this.edgesDraggedForTheSource.Insert(edge);
}
}
}
private static void ProcessPhyloEdges(Graph graph, Microsoft.Msagl.GeometryGraph msaglGraph)
{
foreach (Edge e in graph.Edges)
{
Microsoft.Msagl.Node sourceNode = msaglGraph.FindNode(e.Source);
Microsoft.Msagl.Node targetNode = msaglGraph.FindNode(e.Target);
if (sourceNode == null)
{
sourceNode = CreateGeometryNode(msaglGraph, graph.FindNode(e.Source) as Node, Connection.Connected);
}
if (targetNode == null)
{
targetNode = CreateGeometryNode(msaglGraph, graph.FindNode(e.Target) as Node, Connection.Connected);
}
Microsoft.Msagl.Edge msaglEdge = new Microsoft.Msagl.PhyloEdge(sourceNode, targetNode);
msaglEdge.Weight = e.Attr.Weight;
msaglEdge.Separation = e.Attr.Separation;
msaglEdge.ArrowheadAtSource = e.Attr.ArrowAtSource;
msaglEdge.ArrowheadAtTarget = e.Attr.ArrowAtTarget;
msaglGraph.AddEdge(msaglEdge);
msaglEdge.UserData = e;
msaglEdge.ArrowheadLength = e.Attr.ArrowheadLength;
msaglEdge.LineWidth = e.Attr.LineWidth;
}
}
private static void ProcessEdges(Graph graph, Microsoft.Msagl.GeometryGraph msaglGraph)
{
foreach (Edge drawingEdge in graph.Edges)
{
Microsoft.Msagl.Node sourceNode = msaglGraph.FindNode(drawingEdge.Source);
Microsoft.Msagl.Node targetNode = msaglGraph.FindNode(drawingEdge.Target);
if (sourceNode == null)
{
sourceNode = CreateGeometryNode(msaglGraph, graph.FindNode(drawingEdge.Source) as Node, Connection.Connected);
}
if (targetNode == null)
{
targetNode = CreateGeometryNode(msaglGraph, graph.FindNode(drawingEdge.Target) as Node, Connection.Connected);
}
Microsoft.Msagl.Edge msaglEdge = new Microsoft.Msagl.Edge(sourceNode, targetNode);
if (drawingEdge.Label != null && graph.LayoutAlgorithmSettings is SugiyamaLayoutSettings)
{
msaglEdge.Label = drawingEdge.Label.GeometryLabel;
msaglEdge.Label.Parent = msaglEdge;
}
msaglEdge.Weight = drawingEdge.Attr.Weight;
msaglEdge.Length = drawingEdge.Attr.Length;
msaglEdge.Separation = drawingEdge.Attr.Separation;
msaglEdge.ArrowheadAtSource = drawingEdge.Attr.ArrowAtSource;
msaglEdge.ArrowheadAtTarget = drawingEdge.Attr.ArrowAtTarget;
msaglGraph.AddEdge(msaglEdge);
msaglEdge.UserData = drawingEdge;
msaglEdge.ArrowheadLength = drawingEdge.Attr.ArrowheadLength;
msaglEdge.LineWidth = drawingEdge.Attr.LineWidth;
}
}
private void CalculateDragSetsForEdges()
{
foreach (GeometryObject geomObj in objectsToDrag.Clone())
{
GeomNode node = geomObj as GeomNode;
if (node != null)
{
AssignEdgesOfNodeToEdgeDragSets(node);
}
}
}
private static void ProcessNodes(Graph graph, Microsoft.Msagl.GeometryGraph msaglGraph)
{
foreach (Node n in graph.NodeMap.Values)
{
Microsoft.Msagl.Node msaglNode = msaglGraph.FindNode(n.Id);
if (msaglNode == null)
{
msaglNode = CreateGeometryNode(msaglGraph, n, Connection.Connected);
}
else
{
msaglGraph.NodeMap[msaglNode.Id] = msaglNode;
}
}
}
/// <summary>
/// drags elements by the delta
/// </summary>
/// <param name="delta"></param>
public void Drag(Point delta)
{
GraphBoundingBoxGetsExtended = false;
if (delta.X != 0 || delta.Y != 0)
{
if (EditedEdge == null)
{
foreach (GeometryObject geomObj in objectsToDrag)
{
GeomNode node = geomObj as GeomNode;
if (node != null)
{
DragNode(node, delta, CurrentUndoAction.GetRestoreData(node) as NodeRestoreData);
}
else
{
GeomEdge edge = geomObj as GeomEdge;
if (edge != null)
{
TranslateEdge(edge, delta, CurrentUndoAction.GetRestoreData(edge) as EdgeRestoreData);
}
else
{
GeomLabel label = geomObj as GeomLabel;
if (label != null)
{
DragLabel(label, delta, (CurrentUndoAction.GetRestoreData(label) as LabelRestoreData).Center);
}
else
{
throw new NotImplementedException();
}
}
}
UpdateGraphBoundingBoxWithCheck(geomObj);
}
DragEdgesWithSource(delta);
DragEdgesWithTarget(delta);
}
else if (EditedEdge != null)
{
DragEdgeEdit(delta);
UpdateGraphBoundingBoxWithCheck(EditedEdge);
}
}
}
/// <summary>
/// redoes the editing
/// </summary>
public override void Redo()
{
base.Redo();
foreach (GeometryObject geomObj in movedObjects)
{
GeomNode node = geomObj as GeomNode;
if (node != null)
{
GeometryGraphEditor.DragNode(node, Delta, GetRestoreData(node) as NodeRestoreData);
foreach (GeomEdge edge in node.OutEdges)
{
GeometryGraphEditor.DragEdgeWithSource(Delta, edge, GetRestoreData(edge) as EdgeRestoreData);
}
foreach (GeomEdge edge in node.InEdges)
{
GeometryGraphEditor.DragEdgeWithTarget(Delta, edge, GetRestoreData(edge) as EdgeRestoreData);
}
foreach (GeomEdge edge in node.SelfEdges)
{
GeometryGraphEditor.DragEdge(Delta, edge, GetRestoreData(edge) as EdgeRestoreData, movedObjects);
}
}
else
{
GeomEdge edge = geomObj as GeomEdge;
if (edge != null)
{
GeometryGraphEditor.DragEdge(Delta, edge, GetRestoreData(edge) as EdgeRestoreData, movedObjects);
}
else
{
GeomLabel label = geomObj as GeomLabel;
if (label != null)
{
GeometryGraphEditor.DragLabel(label, Delta, (GetRestoreData(label) as LabelRestoreData).Center);
}
else
{
throw new System.NotImplementedException();
}
}
}
}
}
/// <summary>
/// a helper function creating a geometry node
/// </summary>
/// <param name="graph"></param>
/// <param name="node"></param>
/// <param name="connection">controls if the node is connected to the graph</param>
/// <returns></returns>
public static Microsoft.Msagl.Node CreateGeometryNode(Microsoft.Msagl.GeometryGraph graph, Node node, Connection connection)
{
Microsoft.Msagl.Node geomNode = new Microsoft.Msagl.Node(node.Id, null);
if (connection == Connection.Connected)
{
graph.AddNode(geomNode);
}
if (node.Label != null)
{
geomNode.Label = node.Label.GeometryLabel;
if (geomNode.Label != null)
{
geomNode.Label.Parent = geomNode;
}
}
geomNode.UserData = node;
geomNode.Padding = node.Attr.Padding;
return(geomNode);
}
/// <summary>
/// Undoes the editing
/// </summary>
public override void Undo()
{
base.Undo();
Point point = new Point();
foreach (GeometryObject geomObj in movedObjects)
{
GeomNode node = geomObj as GeomNode;
if (node != null)
{
GeometryGraphEditor.DragNode(node, point, GetRestoreData(node) as NodeRestoreData);
foreach (GeomEdge edge in node.Edges)
{
RestoreEdge(edge);
}
}
else
{
GeomEdge edge = geomObj as GeomEdge;
if (edge != null)
{
GeometryGraphEditor.DragEdge(point, edge, GetRestoreData(edge) as EdgeRestoreData, movedObjects);
}
else
{
GeomLabel label = geomObj as GeomLabel;
if (label != null)
{
GeometryGraphEditor.DragLabel(label, point, (GetRestoreData(label) as LabelRestoreData).Center);
}
else
{
throw new System.NotImplementedException();
}
}
}
}
}
static internal void DragNode(GeomNode node, Point delta, NodeRestoreData restoreData)
{
node.BoundaryCurve = restoreData.BoundaryCurve.Translate(delta);
node.Center = restoreData.Center + delta;
}
private IEnumerable <GeometryObject> ChangedElements()
{
if (this.EditedEdge == null)
{
foreach (GeometryObject obj in ObjectsToDrag)
{
GeomNode node = obj as GeomNode;
if (node != null)
{
yield return(node);
foreach (GeomEdge e in node.OutEdges)
{
yield return(e);
}
foreach (GeomEdge e in node.SelfEdges)
{
yield return(e);
}
foreach (GeomEdge e in node.InEdges)
{
yield return(e);
}
}
else
{
GeomEdge edge = obj as GeomEdge;
if (edge != null)
{
yield return(edge);
yield return(edge.Source);
foreach (GeomEdge e in edge.Source.Edges)
{
yield return(e);
}
yield return(edge.Target);
foreach (GeomEdge e in edge.Target.Edges)
{
yield return(e);
}
}
else
{
GeomLabel label = obj as GeomLabel;
if (label != null)
{
yield return(label);
}
else
{
throw new NotImplementedException();
}
}
}
}
}
else
{
yield return(this.EditedEdge);
}
}
private static bool CustomDrawNode(Microsoft.Msagl.Drawing.Node node, object graphics, NodeTypes nodeType)
{
try
{
double width = 110;
double height = 40;
Microsoft.Msagl.GeometryGraph geomGraph = new Microsoft.Msagl.GeometryGraph();
GeomNode geomCreek = new Microsoft.Msagl.Node(node.Id, Microsoft.Msagl.Splines.CurveFactory.CreateBox(width, height, 0, 0, node.Attr.GeometryNode.Center));
node.Attr.GeometryNode.BoundaryCurve = Microsoft.Msagl.Splines.CurveFactory.CreateBox(width, height, 0, 0,
node.Attr.GeometryNode.Center);
Graphics g = (Graphics)graphics;
MemoryStream ms = new MemoryStream();
switch (nodeType)
{
case NodeTypes.Normal:
CxViewerResources.NormalNode.Save(ms, ImageFormat.Png);
break;
case NodeTypes.NormalSelected:
CxViewerResources.NormalSelected.Save(ms, ImageFormat.Png);
break;
case NodeTypes.MultiRelaitions:
CxViewerResources.MultiRelaitions.Save(ms, ImageFormat.Png);
break;
case NodeTypes.MultiRelaitionsSelected:
CxViewerResources.MultiRelaitionsSelected.Save(ms, ImageFormat.Png);
break;
}
System.Drawing.Image image = System.Drawing.Image.FromStream(ms);
//flip the image around its center
using (System.Drawing.Drawing2D.Matrix m = g.Transform)
{
using (System.Drawing.Drawing2D.Matrix saveM = m.Clone())
{
float c = (float)node.Attr.GeometryNode.Center.Y;
using (System.Drawing.Drawing2D.Matrix m2 = new System.Drawing.Drawing2D.Matrix(1, 0, 0, -1, 0, 2 * c))
m.Multiply(m2);
g.Transform = m;
g.SetClip(FillTheGraphicsPath(node.Attr.GeometryNode.BoundaryCurve));
g.DrawImage(image, new PointF((float)(node.Attr.GeometryNode.Center.X - node.Attr.GeometryNode.Width / 2), (float)(node.Attr.GeometryNode.Center.Y - node.Attr.GeometryNode.Height / 2)));
Font myFont = new System.Drawing.Font("Helvetica", 10, System.Drawing.FontStyle.Italic);
System.Drawing.Brush myBrush = new SolidBrush(System.Drawing.Color.Blue);
Rectangle rectString = new Rectangle(Convert.ToInt32(node.Attr.GeometryNode.Center.X - node.Attr.GeometryNode.Width / 2), Convert.ToInt32(node.Attr.GeometryNode.Center.Y - node.Attr.GeometryNode.Height / 2), Convert.ToInt32(width), Convert.ToInt32(height));
StringFormat stringFormat = new StringFormat();
stringFormat.Alignment = StringAlignment.Center;
stringFormat.LineAlignment = StringAlignment.Center;
g.DrawString(node.Label.Text, myFont, myBrush,
rectString,
stringFormat
// new PointF((float)(node.Attr.GeometryNode.Center.X - node.Attr.GeometryNode.Width / 2), (float)(node.Attr.GeometryNode.Center.Y - 5))
);
g.Transform = saveM;
}
}
}
catch (Exception err)
{
Common.Logger.Create().Error(err.ToString());
}
return(true);//returning false would enable the default rendering
}
