private void ConnectShapes(NExpandableShape fromShape, NExpandableShape toShape)
{
NLineShape connector = new NLineShape();
connector.StyleSheetName = NDR.NameConnectorsStyleSheet;
document.ActiveLayer.AddChild(connector);
connector.FromShape = fromShape;
connector.ToShape = toShape;
}
protected NExpandableShape CreateVertex(string text)
{
NExpandableShape vertex = new NExpandableShape();
vertex.Width = 75;
vertex.Height = 75;
vertex.Text = text;
document.ActiveLayer.AddChild(vertex);
return(vertex);
}
/// <summary>
///
/// </summary>
/// <param name="expandState"></param>
public void Expand(bool expandState)
{
// expand or collapse in a single transation
StartTransaction(expandState? "Expand Tree": "Collapse Tree");
// mark shape as expanded
Expanded = expandState;
// show/hide the plus or minus
NExpandCollapseCheck check = GetExpandCollapseCheck();
((NPathPrimitive)check.Primitives.GetChildAt(1)).Visible = !expandState;
((NPathPrimitive)check.Primitives.GetChildAt(2)).Visible = expandState;
// show/hide all outgoing shapes
NNodeList nodes = GetOutgoingShapes();
for (int i = 0; i < nodes.Count; i++)
{
NShape shape = (nodes[i] as NShape);
shape.Visible = expandState;
}
// show/hide all destination shapes
nodes = GetDestinationShapes();
for (int i = 0; i < nodes.Count; i++)
{
NShape shape = (nodes[i] as NShape);
shape.Visible = expandState;
}
// expand/collapse the destination shapes
for (int i = 0; i < nodes.Count; i++)
{
NExpandableShape expandableShape = (nodes[i] as NExpandableShape);
if (expandableShape != null)
{
expandableShape.Expand(expandState);
}
}
// commit the transaction
Commit();
}
private void InitDocument()
{
// all shapes will have shadow dropped below document content
document.Style.ShadowStyle.Type = ShadowType.GaussianBlur;
document.Style.ShadowStyle.Offset = new NPointL(5, 5);
document.Style.ShadowStyle.FadeLength = new NLength(5);
document.ShadowsZOrder = ShadowsZOrder.BehindDocument;
// root
NExpandableShape company = CreateVertex("The Company");
// products branch
NExpandableShape products = CreateVertex("Products and Services");
ConnectShapes(company, products);
NExpandableShape product1 = this.CreateVertex("Product1");
ConnectShapes(products, product1);
NExpandableShape product2 = this.CreateVertex("Product2");
ConnectShapes(products, product2);
// how to reach
NExpandableShape reach = CreateVertex("How to reach");
ConnectShapes(company, reach);
NExpandableShape phone = this.CreateVertex("Phone");
ConnectShapes(reach, phone);
NExpandableShape fax = this.CreateVertex("Fax");
ConnectShapes(reach, fax);
NExpandableShape website = this.CreateVertex("Website");
ConnectShapes(reach, website);
// research
NExpandableShape research = CreateVertex("Research");
ConnectShapes(company, research);
NExpandableShape tech = this.CreateVertex("Techinical");
ConnectShapes(research, tech);
NExpandableShape marketing = this.CreateVertex("Marketing");
ConnectShapes(research, marketing);
NExpandableShape newTech = this.CreateVertex("New Tech");
ConnectShapes(research, newTech);
NNodeList nodes = new NNodeList();
nodes.Add(company);
// create a layout context
NLayoutContext layoutContext = new NLayoutContext();
layoutContext.BodyAdapter = new NShapeBodyAdapter(document);
layoutContext.BodyContainerAdapter = new NDrawingBodyContainerAdapter(document);
layoutContext.GraphAdapter = new NShapeGraphAdapter();
// first apply a layered tree layout
// to set a start position of the shapes as a simple tree
NTreeLayout treeLayout = new NLayeredTreeLayout();
treeLayout.Layout(nodes, layoutContext);
// then apply a symmetrical layout to layout them in a ring fasion
NSymmetricalLayout symmetricalLayout = new NSymmetricalLayout();
symmetricalLayout.DesiredDistanceForce.DesiredDistance = 100;
symmetricalLayout.Layout(nodes, layoutContext);
// size the document to the content (note that we use irregular margins)
document.SizeToContent(new NSizeF(100, 100), new Nevron.Diagram.NMargins(20, 20, 50, 20));
// add title spanning the entire document width
NTextShape text = new NTextShape("Company Structure", new NRectangleF(document.Bounds.X + 5, document.Bounds.Y + 5, document.Width - 10, 50));
text.Style.TextStyle = new NTextStyle(new Font("Times New Roman", 23, FontStyle.Bold));
document.ActiveLayer.AddChild(text);
}
