public HierarchicLayout ConfigureHierarchicLayout(bool fromSketchMode)
{
var hierarchicLayout = new HierarchicLayout
{
LayoutOrientation = LayoutOrientation.LeftToRight,
LayoutMode = fromSketchMode ? LayoutMode.Incremental : LayoutMode.FromScratch,
NodeToNodeDistance = 30,
BackLoopRouting = true,
EdgeLayoutDescriptor =
{
MinimumFirstSegmentLength = 120,
MinimumLastSegmentLength = 120,
},
};
// a port border gap ratio of zero means that ports can be placed directly on the corners of the nodes
var portBorderRatio = 1;
hierarchicLayout.NodeLayoutDescriptor.PortBorderGapRatios = portBorderRatio;
// configures the generic labeling algorithm which produces more compact results, here
var genericLabeling = (GenericLabeling)hierarchicLayout.Labeling;
genericLabeling.ReduceAmbiguity = false;
genericLabeling.PlaceNodeLabels = false;
genericLabeling.PlaceEdgeLabels = true;
hierarchicLayout.LabelingEnabled = true;
// for Sankey diagrams, the nodes should be adjusted to the incoming/outgoing flow (enlarged if necessary)
// -> use NodeResizingStage for that purpose
var nodeResizingStage = new NodeResizingStage(hierarchicLayout);
nodeResizingStage.LayoutOrientation = hierarchicLayout.LayoutOrientation;
nodeResizingStage.PortBorderGapRatio = portBorderRatio;
hierarchicLayout.PrependStage(nodeResizingStage);
return(hierarchicLayout);
}
///<inheritdoc/>
protected override void ConfigureLayout()
{
LayoutGraph graph = CurrentLayoutGraph;
HierarchicLayout hl = new HierarchicLayout();
LayoutAlgorithm = hl;
// mark incremental elements if required
IDataMap incrementalElements;
OptionGroup generalGroup = (OptionGroup)Handler.GetGroupByName(GENERAL);
OptionGroup currentGroup = (OptionGroup)generalGroup.GetGroupByName(INTERACTION);
OptionGroup groupingGroup = (OptionGroup)Handler.GetGroupByName(GROUPING);
bool fromSketch = (bool)currentGroup[USE_DRAWING_AS_SKETCH].Value;
bool incrementalLayout = (bool)currentGroup[SELECTED_ELEMENTS_INCREMENTALLY].Value;
bool selectedElements = !IsEdgeSelectionEmpty() || !IsNodeSelectionEmpty();
if (incrementalLayout && selectedElements)
{
// create storage for both nodes and edges
incrementalElements = Maps.CreateHashedDataMap();
// configure the mode
hl.LayoutMode = LayoutMode.Incremental;
IIncrementalHintsFactory ihf = hl.CreateIncrementalHintsFactory();
foreach (Node node in graph.Nodes)
{
if (IsSelected(node))
{
incrementalElements.Set(node, ihf.CreateLayerIncrementallyHint(node));
}
}
foreach (Edge edge in graph.Edges)
{
if (IsSelected(edge))
{
incrementalElements.Set(edge, ihf.CreateSequenceIncrementallyHint(edge));
}
}
graph.AddDataProvider(HierarchicLayout.IncrementalHintsDpKey, incrementalElements);
}
else if (fromSketch)
{
hl.LayoutMode = LayoutMode.Incremental;
}
else
{
hl.LayoutMode = LayoutMode.FromScratch;
}
// cast to implementation simplex
var np = (SimplexNodePlacer)hl.NodePlacer;
np.BarycenterMode = (bool)generalGroup[SYMMETRIC_PLACEMENT].Value;
np.StraightenEdges = (bool)Handler.GetValue(EDGE_SETTINGS, EDGE_STRAIGHTENING_OPTIMIZATION_ENABLED);
hl.ComponentLayoutEnabled = (bool)generalGroup[LAYOUT_COMPONENTS_SEPARATELY].Value;
currentGroup = (OptionGroup)generalGroup.GetGroupByName(MINIMUM_DISTANCES);
hl.MinimumLayerDistance = (double)currentGroup[MINIMUM_LAYER_DISTANCE].Value;
hl.NodeToEdgeDistance = (double)currentGroup[NODE_TO_EDGE_DISTANCE].Value;
hl.NodeToNodeDistance = (double)currentGroup[NODE_TO_NODE_DISTANCE].Value;
hl.EdgeToEdgeDistance = (double)currentGroup[EDGE_TO_EDGE_DISTANCE].Value;
NodeLayoutDescriptor nld = hl.NodeLayoutDescriptor;
EdgeLayoutDescriptor eld = hl.EdgeLayoutDescriptor;
currentGroup = (OptionGroup)Handler.GetGroupByName(EDGE_SETTINGS);
hl.AutomaticEdgeGrouping = (bool)currentGroup[AUTOMATIC_EDGE_GROUPING_ENABLED].Value;
string edgeRoutingChoice = (string)currentGroup[EDGE_ROUTING].Value;
eld.RoutingStyle = edgeRoutingEnum[edgeRoutingChoice];
eld.MinimumFirstSegmentLength = (double)currentGroup[MINIMUM_FIRST_SEGMENT_LENGTH].Value;
eld.MinimumLastSegmentLength = (double)currentGroup[MINIMUM_LAST_SEGMENT_LENGTH].Value;
eld.MinimumDistance = (double)currentGroup[MINIMUM_EDGE_DISTANCE].Value;
eld.MinimumLength = (double)currentGroup[MINIMUM_EDGE_LENGTH].Value;
eld.MinimumSlope = (double)currentGroup[MINIMUM_SLOPE].Value;
eld.SourcePortOptimization = (bool)currentGroup[PC_OPTIMIZATION_ENABLED].Value;
eld.TargetPortOptimization = (bool)currentGroup[PC_OPTIMIZATION_ENABLED].Value;
var isIncrementalModeEnabled = (fromSketch || (incrementalLayout && selectedElements));
var recursiveRoutingMode = Handler.GetValue(EDGE_SETTINGS, RECURSIVE_EDGE_ROUTING);
if (!isIncrementalModeEnabled && recursiveRoutingMode == RECURSIVE_EDGE_ROUTING_DIRECTED)
{
eld.RecursiveEdgeStyle = RecursiveEdgeStyle.Directed;
}
else if (!isIncrementalModeEnabled && recursiveRoutingMode == RECURSIVE_EDGE_ROUTING_UNDIRECTED)
{
eld.RecursiveEdgeStyle = RecursiveEdgeStyle.Undirected;
}
else
{
eld.RecursiveEdgeStyle = RecursiveEdgeStyle.Off;
}
nld.MinimumDistance = Math.Min(hl.NodeToNodeDistance, hl.NodeToEdgeDistance);
nld.MinimumLayerHeight = 0;
OptionGroup rankGroup = (OptionGroup)Handler.GetGroupByName(RANKS);
string layerAlignmentChoice = (string)rankGroup[LAYER_ALIGNMENT].Value;
nld.LayerAlignment = alignmentEnum[layerAlignmentChoice];
ol = (OrientationLayout)hl.OrientationLayout;
string orientationChoice = (string)generalGroup[ORIENTATION].Value;
ol.Orientation = orientEnum[orientationChoice];
OptionGroup labelingGroup = (OptionGroup)Handler.GetGroupByName(LABELING);
currentGroup = (OptionGroup)labelingGroup.GetGroupByName(LABELING_EDGE_PROPERTIES);
string el = (string)currentGroup[EDGE_LABELING].Value;
if (!el.Equals(EDGE_LABELING_NONE))
{
if (el.Equals(EDGE_LABELING_GENERIC))
{
var la = new GenericLabeling();
la.MaximumDuration = 0;
la.PlaceNodeLabels = false;
la.PlaceEdgeLabels = true;
la.AutoFlipping = true;
la.ProfitModel = new SimpleProfitModel();
hl.PrependStage(la);
}
else if (el.Equals(EDGE_LABELING_HIERARCHIC))
{
bool copactEdgeLabelPlacement = (bool)currentGroup[COMPACT_EDGE_LABEL_PLACEMENT].Value;
if (hl.NodePlacer is SimplexNodePlacer)
{
np.LabelCompaction = copactEdgeLabelPlacement;
}
hl.IntegratedEdgeLabeling = true;
}
}
else
{
hl.IntegratedEdgeLabeling = false;
}
currentGroup = (OptionGroup)labelingGroup.GetGroupByName(NODE_PROPERTIES);
if ((bool)currentGroup[CONSIDER_NODE_LABELS].Value)
{
hl.ConsiderNodeLabels = true;
hl.NodeLayoutDescriptor.NodeLabelMode = NodeLabelMode.ConsiderForDrawing;
}
else
{
hl.ConsiderNodeLabels = false;
}
string rp = (string)rankGroup[RANKING_POLICY].Value;
hl.FromScratchLayeringStrategy = rankingPolicies[rp];
if (rp.Equals(BFS_LAYERS))
{
CurrentLayoutGraph.AddDataProvider(BFSLayerer.CoreNodesDpKey, new SelectedNodesDP(this));
}
hl.ComponentArrangementPolicy = componentAlignmentEnum[(string)rankGroup[COMPONENT_ARRANGEMENT_POLICY].Value];
//configure AsIsLayerer
Object layerer = (hl.LayoutMode == LayoutMode.FromScratch)
? hl.FromScratchLayerer
: hl.FixedElementsLayerer;
// if (layerer is OldLayererWrapper) {
// layerer = ((OldLayererWrapper)layerer).OldLayerer;
// }
if (layerer is AsIsLayerer)
{
AsIsLayerer ail = (AsIsLayerer)layerer;
currentGroup = (OptionGroup)rankGroup.GetGroupByName(FROM_SKETCH_PROPERTIES);
ail.NodeHalo = (double)currentGroup[HALO].Value;
ail.NodeScalingFactor = (double)currentGroup[SCALE].Value;
ail.MinimumNodeSize = (double)currentGroup[MINIMUM_SIZE].Value;
ail.MaximumNodeSize = (double)currentGroup[MAXIMUM_SIZE].Value;
}
//configure grouping
np.GroupCompactionStrategy = groupHorizCompactionEnum[(string)groupingGroup[GROUP_HORIZONTAL_COMPACTION].Value];
if (!fromSketch && groupStrategyEnum[(string)groupingGroup[GROUP_LAYERING_STRATEGY].Value])
{
GroupAlignmentPolicy alignmentPolicy = groupAlignmentEnum[(string)groupingGroup[GROUP_ALIGNMENT].Value];
hl.GroupAlignmentPolicy = alignmentPolicy;
hl.CompactGroups = (bool)groupingGroup[GROUP_ENABLE_COMPACTION].Value;
hl.RecursiveGroupLayering = true;
}
else
{
hl.RecursiveGroupLayering = false;
}
OptionGroup swimGroup = (OptionGroup)Handler.GetGroupByName(SWIMLANES);
if ((bool)swimGroup[TREAT_ROOT_GROUPS_AS_SWIMLANES].Value)
{
TopLevelGroupToSwimlaneStage stage = new TopLevelGroupToSwimlaneStage();
stage.OrderSwimlanesFromSketch = (bool)swimGroup[USE_ORDER_FROM_SKETCH].Value;
stage.Spacing = (double)swimGroup[SWIMLANE_SPACING].Value;
hl.AppendStage(stage);
}
hl.BackLoopRouting = (bool)Handler.GetValue(EDGE_SETTINGS, BACKLOOP_ROUTING);
hl.MaximumDuration = ((int)Handler.GetValue(GENERAL, MAXIMUM_DURATION)) * 1000;
bool gridEnabled = (bool)Handler.GetValue(GRID, GRID_ENABLED);
if (gridEnabled)
{
hl.GridSpacing = (double)Handler.GetValue(GRID, GRID_SPACING);
String portAssignment = (string)Handler.GetValue(GRID, GRID_PORT_ASSIGNMENT);
PortAssignmentMode gridPortAssignment;
switch (portAssignment)
{
case GRID_PORT_ASSIGNMENT_ON_GRID:
gridPortAssignment = PortAssignmentMode.OnGrid;
break;
case GRID_PORT_ASSIGNMENT_ON_SUBGRID:
gridPortAssignment = PortAssignmentMode.OnSubgrid;
break;
default:
gridPortAssignment = PortAssignmentMode.Default;
break;
}
graph.AddDataProvider(HierarchicLayoutCore.NodeLayoutDescriptorDpKey,
new NodeLayoutDescriptorAdapter(hl.NodeLayoutDescriptor, graph, gridPortAssignment));
}
}
