private string LayoutShapes()
{
string result = String.Empty;
try
{
this.Cursor = Cursors.WaitCursor;
document.BeginInit();
NNodeList nodes = document.ActiveLayer.Children(NFilters.Shape2D);
NLayoutContext layoutContext = new NDrawingLayoutContext(document);
NLayout layout = (NLayout)cbLayout.SelectedItem;
layout.Layout(nodes, layoutContext);
document.SizeToContent();
document.EndInit();
result = layout.PerformanceInfo;
}
finally
{
this.Cursor = Cursors.Default;
}
return(result);
}
protected override void InitDiagram()
{
base.InitDiagram();
// Create a group
NGroup group = new NGroup();
m_DrawingDocument.Content.ActivePage.Items.Add(group);
group.PinX = 300;
group.PinY = 300;
// Create some shapes and add them to the group
NBasicShapeFactory factory = new NBasicShapeFactory();
NShape root = factory.CreateShape(ENBasicShape.Rectangle);
root.Text = "Root";
group.Shapes.Add(root);
NShape shape1 = factory.CreateShape(ENBasicShape.Circle);
shape1.Text = "Circle 1";
group.Shapes.Add(shape1);
NShape shape2 = factory.CreateShape(ENBasicShape.Circle);
shape2.Text = "Circle 2";
group.Shapes.Add(shape2);
NShape shape3 = factory.CreateShape(ENBasicShape.Circle);
shape3.Text = "Circle 3";
group.Shapes.Add(shape3);
// Connect the shapes
ConnectShapes(root, shape1);
ConnectShapes(root, shape2);
ConnectShapes(root, shape3);
// Update group bounds
group.UpdateBounds();
// Create a layout context and configure the area you want the group to be arranged in.
// The layout area is in page coordinates
NDrawingLayoutContext layoutContext = new NDrawingLayoutContext(m_DrawingDocument, group);
layoutContext.LayoutArea = new NRectangle(100, 100, 200, 200);
// Layout the shapes in the group
NRadialGraphLayout layout = new NRadialGraphLayout();
layout.Arrange(group.Shapes.ToArray(), layoutContext);
// Update the group bounds
group.UpdateBounds();
}
/// <summary>
/// Arranges the shapes in the active page.
/// </summary>
protected virtual void ArrangeDiagram()
{
// get all top-level shapes that reside in the active page
NPage activePage = m_DrawingDocument.Content.ActivePage;
NList <NShape> shapes = activePage.GetShapes(false);
// create a layout context and use it to arrange the shapes using the current layout
NDrawingLayoutContext layoutContext = new NDrawingLayoutContext(m_DrawingDocument, activePage);
m_Layout.Arrange(shapes.CastAll <object>(), layoutContext);
// size the page to the content size
activePage.SizeToContent();
}
protected override void InitDiagram()
{
base.InitDiagram();
m_DrawingDocument.HistoryService.Pause();
try
{
NDrawing drawing = m_DrawingDocument.Content;
NPage activePage = drawing.ActivePage;
activePage.BackgroundFill = new NColorFill(NColor.LightGray);
// Hide grid and ports
drawing.ScreenVisibility.ShowGrid = false;
drawing.ScreenVisibility.ShowPorts = false;
// Create all shapes
NFlagShapeFactory factory = new NFlagShapeFactory();
factory.DefaultSize = new NSize(60, 60);
for (int i = 0; i < factory.ShapeCount; i++)
{
NShape shape = factory.CreateShape(i);
shape.HorizontalPlacement = ENHorizontalPlacement.Center;
shape.VerticalPlacement = ENVerticalPlacement.Center;
shape.Text = factory.GetShapeInfo(i).Name;
MoveTextBelowShape(shape);
activePage.Items.Add(shape);
}
// Arrange them
NList <NShape> shapes = activePage.GetShapes(false);
NLayoutContext layoutContext = new NDrawingLayoutContext(m_DrawingDocument, activePage);
NTableFlowLayout tableLayout = new NTableFlowLayout();
tableLayout.HorizontalSpacing = 70;
tableLayout.VerticalSpacing = 50;
tableLayout.Direction = ENHVDirection.LeftToRight;
tableLayout.MaxOrdinal = 5;
tableLayout.Arrange(shapes.CastAll <object>(), layoutContext);
// size page to content
activePage.Layout.ContentPadding = new NMargins(50);
activePage.SizeToContent();
}
finally
{
m_DrawingDocument.HistoryService.Resume();
}
}
/// <summary>
/// Arranges the shapes in the active page.
/// </summary>
private void ArrangeDiagram()
{
// Create and configure a layout
NLayeredGraphLayout layout = new NLayeredGraphLayout();
// Get all top-level shapes that reside in the active page
NPage activePage = m_DrawingDocument.Content.ActivePage;
NList <NShape> shapes = activePage.GetShapes(false);
// Create a layout context and use it to arrange the shapes using the current layout
NDrawingLayoutContext layoutContext = new NDrawingLayoutContext(m_DrawingDocument, activePage);
layout.Arrange(shapes.CastAll <object>(), layoutContext);
// Size the page to the content size
activePage.SizeToContent();
}
/// <summary>
/// Overriden to create the tree template
/// </summary>
/// <param name="document">document in which to create the template</param>
protected override void CreateTemplate(NDrawingDocument document)
{
// create the tree
NList <NShape> elements = CreateTree(document);
if (m_LayoutType == ENTreeLayoutType.None)
{
return;
}
// layout the tree
NLayeredTreeLayout layout = new NLayeredTreeLayout();
// sync measurement unit
layout.OrthogonalEdgeRouting = false;
switch (m_LayoutType)
{
case ENTreeLayoutType.Layered:
layout.VertexSpacing = m_fHorizontalSpacing;
layout.LayerSpacing = m_fVerticalSpacing;
break;
case ENTreeLayoutType.LayeredLeftAligned:
layout.VertexSpacing = m_fHorizontalSpacing;
layout.LayerSpacing = m_fVerticalSpacing;
layout.ParentPlacement.Anchor = ENParentAnchor.SubtreeNear;
layout.ParentPlacement.Alignment = ENRelativeAlignment.Near;
break;
case ENTreeLayoutType.LayeredRightAligned:
layout.VertexSpacing = m_fHorizontalSpacing;
layout.LayerSpacing = m_fVerticalSpacing;
layout.ParentPlacement.Anchor = ENParentAnchor.SubtreeFar;
layout.ParentPlacement.Alignment = ENRelativeAlignment.Far;
break;
}
// apply layout
NDrawingLayoutContext context = new NDrawingLayoutContext(document, new NRectangle(Origin, NSize.Zero));
layout.Arrange(elements.CastAll <object>(), context);
}
/// <summary>
/// Overriden to create a random graph template in the specified document.
/// </summary>
/// <param name="document">The document to create a graph in.</param>
protected override void CreateTemplate(NDrawingDocument document)
{
if (m_nEdgeCount < m_nVertexCount - 1)
{
throw new Exception("##The number of edges must be greater than or equal to the (number of vertices - 1) in order to generate a connected graph");
}
if (m_nEdgeCount > MaxEdgeCount(m_nVertexCount))
{
throw new Exception("##Too many edges wanted for the graph");
}
int i;
Random random = new Random();
NPage activePage = document.Content.ActivePage;
NShape[] vertices = new NShape[m_nVertexCount];
NList <NPointI> edges = GetRandomMST(m_nVertexCount);
NPointI edgeInfo;
NSizeI minSize = m_MinVerticesSize.Round();
NSizeI maxSize = m_MaxVerticesSize.Round();
maxSize.Width++;
maxSize.Height++;
// Create the vertices
for (i = 0; i < m_nVertexCount; i++)
{
vertices[i] = CreateVertex(m_VerticesShape);
double width = random.Next(minSize.Width, maxSize.Width);
double height = random.Next(minSize.Height, maxSize.Height);
vertices[i].SetBounds(new NRectangle(0, 0, width, height));
activePage.Items.AddChild(vertices[i]);
}
// Generate the edges
for (i = m_nVertexCount - 1; i < m_nEdgeCount; i++)
{
do
{ // Generate a new edge
edgeInfo = new NPointI(random.Next(m_nVertexCount), random.Next(m_nVertexCount));
}while (edgeInfo.X == edgeInfo.Y || edges.Contains(edgeInfo) || edges.Contains(new NPointI(edgeInfo.Y, edgeInfo.X)));
edges.Add(edgeInfo);
}
// Create the edges
for (i = 0; i < m_nEdgeCount; i++)
{
edgeInfo = edges[i];
NShape edge = CreateEdge(ENConnectorShape.RoutableConnector);
activePage.Items.AddChild(edge);
edge.GlueBeginToGeometryIntersection(vertices[edgeInfo.X]);
edge.GlueEndToShape(vertices[edgeInfo.Y]);
}
// Apply a table layout to the generated graph
NTableFlowLayout tableLayout = new NTableFlowLayout();
tableLayout.MaxOrdinal = (int)Math.Sqrt(m_nVertexCount) + 1;
tableLayout.HorizontalSpacing = m_VerticesSize.Width / 5;
tableLayout.VerticalSpacing = m_VerticesSize.Width / 5;
NDrawingLayoutContext context = new NDrawingLayoutContext(document, activePage);
tableLayout.Arrange(new NList <object>(NArrayHelpers <NShape> .CastAll <object>(vertices)), context);
}
