public virtual bool Arrange(FlowChart chart)
{
chart.UndoManager.onStartLayout("Anneal layout");
// Build the graph
FCGraph graph = new FCGraph(chart, _keepGroupLayout);
// Find the root adapter
Layout.INode rootNode = null;
if (_root != null)
{
foreach (FCNode node in graph.Nodes)
{
if (node.Node == _root)
{
rootNode = node;
break;
}
}
}
// Split graph to subgraphs
Layout.IGraph[] subgraphs = null;
if (_splitGraph)
{
subgraphs = Layout.GraphSplitter.Split(
graph, new FCGraphBuilder(chart, false));
}
else
{
subgraphs = new Layout.IGraph[] { graph };
}
// Create the layouter
Layout.AnnealLayout layout = new Layout.AnnealLayout();
Layout.LayoutProgress progress = null;
if (_progress != null)
progress = new Layout.LayoutProgress(this.OnLayoutProgress);
Layout.AnnealLayoutInfo info = new Layout.AnnealLayoutInfo();
info.DistributionFactor = this.DistributionFactor;
info.BoundaryFactor = this.BoundaryFactor;
info.EdgeLengthFactor = this.ArrowLengthFactor;
info.CrossingEdgesCost = this.CrossingArrowsCost;
info.NodeEdgeDistFactor = this.NodeArrowDistFactor;
info.IterationsPerStage = this.IterationsPerStage;
info.Stages = this.Stages;
info.Temperature = this.InitialTemperature;
info.TemperatureScale = this.TemperatureScale;
info.LayoutArea = this.LayoutArea;
info.WidthHeightRatio = this.WidthHeightRatio;
info.Randomize = this.Randomize;
float xOffset = 0;
foreach (FCGraph subgraph in subgraphs)
{
// If a root node is specified and the subgraph
// does not contain that node, do not arrange
// the subgraph
if (rootNode != null)
{
if (!subgraph.Nodes.Contains(rootNode))
continue;
}
layout.Arrange(subgraph, info, progress);
// Translate the whole subgraph
RectangleF graphBounds = subgraph.GetBounds(false);
float xToMove = xOffset - graphBounds.X;
float yToMove = -graphBounds.Y;
foreach (FCNode node in subgraph.Nodes)
{
RectangleF nodeBounds = node.Bounds;
RectangleF oldBounds = node.Node.BoundingRect;
nodeBounds.X += xToMove;
nodeBounds.Y += yToMove;
node.Bounds = nodeBounds;
if (_layoutNode != null)
_layoutNode(node.Node, oldBounds);
}
xOffset += graphBounds.Width;
// Update arrows
foreach (FCLink link in subgraph.Links)
{
Arrow arrow = link.Arrow;
if (arrow.IgnoreLayout)
continue;
// If the arrow being arranged is dynamic,
// ignore the anchoring flag?
if (arrow.Dynamic)
arrow.updatePosFromOrgAndDest(false);
arrow.arrangePoints(_anchoring);
if (_layoutLink != null)
_layoutLink(arrow);
}
}
chart.Invalidate();
chart.UndoManager.onEndLayout();
return true;
}
public virtual bool Arrange(FlowChart chart)
{
chart.UndoManager.onStartLayout("Grid layout");
// Build the graph
FCGraph graph = new FCGraph(chart, _keepGroupLayout);
// Find the root adapter
Layout.INode rootNode = null;
if (_root != null)
{
foreach (FCNode node in graph.Nodes)
{
if (node.Node == _root)
{
rootNode = node;
break;
}
}
}
// Split graph to subgraphs
Layout.IGraph[] subgraphs = null;
if (_splitGraph)
{
subgraphs = Layout.GraphSplitter.Split(
graph, new FCGraphBuilder(chart, false));
}
else
{
subgraphs = new Layout.IGraph[] { graph };
}
// Create the layouter
Layout.GridLayout layout = new Layout.GridLayout();
Layout.LayoutProgress progress = null;
if (_progress != null)
progress = new Layout.LayoutProgress(this.OnLayoutProgress);
Layout.GridLayoutInfo info = new Layout.GridLayoutInfo();
info.GridSize = this.GridSize;
info.Iterations = this.Iterations;
info.XGap = this.XGap;
info.YGap = this.YGap;
info.RndSeed = this.RndSeed;
float xOffset = XGap;
foreach (FCGraph subgraph in subgraphs)
{
// If a root node is specified and the subgraph
// does not contain that node, do not arrange
// the subgraph
if (rootNode != null)
{
if (!subgraph.Nodes.Contains(rootNode))
continue;
}
// Set the start and end nodes
info.StartNode = null;
info.EndNode = null;
foreach (FCNode node in subgraph.Nodes)
{
if (node.Node == _startNode)
info.StartNode = node;
if (node.Node == _endNode)
info.EndNode = node;
}
// Ensure both start and end nodes are set
if (info.StartNode == null || info.EndNode == null)
{
info.StartNode = null;
info.EndNode = null;
}
layout.Arrange(subgraph, info, progress);
// Translate the whole subgraph
RectangleF graphBounds = subgraph.GetBounds(false);
float xToMove = xOffset - graphBounds.X;
float yToMove = info.YGap - graphBounds.Y;
foreach (FCNode node in subgraph.Nodes)
{
RectangleF nodeBounds = node.Bounds;
RectangleF oldBounds = node.Node.BoundingRect;
nodeBounds.X += xToMove;
nodeBounds.Y += yToMove;
node.Bounds = nodeBounds;
if (_layoutNode != null)
_layoutNode(node.Node, oldBounds);
}
xOffset += graphBounds.Width + info.GridSize;
// Update arrows
foreach (FCLink link in subgraph.Links)
{
if (link.Arrow.IgnoreLayout)
continue;
link.Arrow.arrangePoints(_anchoring);
if (_layoutLink != null)
_layoutLink(link.Arrow);
}
}
chart.RouteAllArrows();
chart.Invalidate();
chart.UndoManager.onEndLayout();
return true;
}
