protected void NDrawingView1_AsyncClick(object sender, EventArgs e)
{
NCallbackMouseEventArgs args = e as NCallbackMouseEventArgs;
NNodeList nodes = NDrawingView1.HitTest(args);
NNodeList shapes = nodes.Filter(Nevron.Diagram.Filters.NFilters.Shape2D);
NExpandCollapseCheck check = null;
int length = shapes.Count;
for (int i = 0; i < length; i++)
{
if (shapes[i] is NExpandCollapseCheck)
{
check = shapes[i] as NExpandCollapseCheck;
break;
}
}
if (check == null)
{
return;
}
NExpandableShape shape = check.ParentNode.ParentNode as NExpandableShape;
shape.Expand(!shape.Expanded);
}
protected NExpandableShape CreateVertex(string text)
{
NExpandableShape vertex = new NExpandableShape();
vertex.Text = text;
NDrawingView1.Document.ActiveLayer.AddChild(vertex);
return(vertex);
}
protected void ConnectShapes(NExpandableShape fromShape, NExpandableShape toShape)
{
NLineShape connector = new NLineShape();
connector.StyleSheetName = NDR.NameConnectorsStyleSheet;
NDrawingView1.Document.ActiveLayer.AddChild(connector);
connector.FromShape = fromShape;
connector.ToShape = toShape;
}
/// <summary>
///
/// </summary>
/// <param name="expandShape"></param>
public void Expand(bool expandShape)
{
// expand or collapse in a single transation
StartTransaction(expandShape ? "Expand Tree" : "Collapse Tree");
// mark shape as expanded
Expanded = expandShape;
// show/hide the plus or minus
NExpandCollapseCheck check = GetExpandCollapseCheck();
NPathPrimitive pathPrimitive;
pathPrimitive = check.Primitives.GetChildAt(1) as NPathPrimitive;
pathPrimitive.Visible = !expandShape;
pathPrimitive = check.Primitives.GetChildAt(2) as NPathPrimitive;
pathPrimitive.Visible = expandShape;
// show/hide all outgoing shapes
NNodeList nodes = GetOutgoingShapes();
for (int i = 0; i < nodes.Count; i++)
{
NShape shape = (nodes[i] as NShape);
shape.Visible = expandShape;
}
// show/hide all destination shapes
nodes = GetDestinationShapes();
for (int i = 0; i < nodes.Count; i++)
{
NShape shape = (nodes[i] as NShape);
shape.Visible = expandShape;
}
// expand/collapse the destination shapes
for (int i = 0; i < nodes.Count; i++)
{
NExpandableShape expandableShape = (nodes[i] as NExpandableShape);
if (expandableShape != null)
{
expandableShape.Expand(expandShape);
}
}
// commit the transaction
Commit();
}
protected void InitDocument()
{
NDrawingView1.Document.GraphicsSettings.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
NDrawingView1.Document.GraphicsSettings.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed;
NDrawingView1.Document.GraphicsSettings.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
// set up visual formatting
NDrawingView1.Document.Style.FillStyle = new NColorFillStyle(Color.Linen);
NDrawingView1.Document.BackgroundStyle.FrameStyle.Visible = false;
// all shapes will have shadow dropped below document content
NDrawingView1.Document.Style.ShadowStyle.Type = ShadowType.GaussianBlur;
NDrawingView1.Document.Style.ShadowStyle.Offset = new NPointL(5, 5);
NDrawingView1.Document.Style.ShadowStyle.FadeLength = new NLength(5);
NDrawingView1.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(NDrawingView1.Document);
layoutContext.BodyContainerAdapter = new NDrawingBodyContainerAdapter(NDrawingView1.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)
NDrawingView1.Document.SizeToContent(new NSizeF(100, 100), new Nevron.Diagram.NMargins(20, 20, 100, 20));
// add title spanning the entire document width
NTextShape text = new NTextShape("Company Structure", new NRectangleF(5, -50, NDrawingView1.Document.Width - 5, 50));
text.Style.TextStyle = new NTextStyle(new Font("Times New Roman", 23, FontStyle.Bold));
text.Style.TextStyle.StringFormatStyle.HorzAlign = HorzAlign.Center;
NDrawingView1.Document.ActiveLayer.AddChild(text);
}
