private void ApplyOptions(CompactOrthogonalLayout layout)
{
OptionGroup topLevelGroup = Handler.GetGroupByName(TOP_LEVEL);
IOptionItem gridItem = topLevelGroup.GetItemByName(GRID);
layout.GridSpacing = (int)gridItem.Value;
double ar = (double)topLevelGroup.GetItemByName(ASPECT_RATIO).Value;
// this needs to be done as a final step since it will reconfigure
// layout stages which support aspect ratio accordingly
layout.AspectRatio = ar;
}
/// <summary>
/// configures the layout algorithm according to the settings of the option handler.
/// </summary>
protected override void ConfigureLayout()
{
CompactOrthogonalLayout compactOrthogonal = new CompactOrthogonalLayout();
compactOrthogonal.InterEdgeRouter = ConfigureInterEdgeRouter();
compactOrthogonal.PartitionPlacer = ConfigurePartitionPlacer();
ApplyOptions((OrthogonalLayout)compactOrthogonal.CoreLayout);
ApplyOptions(compactOrthogonal);
LayoutAlgorithm = new HideGroupsStage(compactOrthogonal)
{
HidingEmptyGroupNodes = false
};
}
/// <summary>
/// Creates the core layouts and populates the layouts box
/// </summary>
private void InitializeCoreLayouts()
{
coreLayouts = new Dictionary <string, ILayoutAlgorithm>();
coreLayouts["Hierarchic"] = new HierarchicLayout {
ConsiderNodeLabels = true, IntegratedEdgeLabeling = true, OrthogonalRouting = true
};
coreLayouts["Circular"] = new CircularLayout();
coreLayouts["Compact Orthogonal"] = new CompactOrthogonalLayout();
coreLayouts["Organic"] = new OrganicLayout {
MinimumNodeDistance = 10, Deterministic = true
};
coreLayouts["Orthogonal"] = new OrthogonalLayout();
coreLayoutComboBox.ItemsSource = coreLayouts.Keys;
coreLayoutComboBox.SelectedIndex = 0;
}
/// <summary>
/// sets up the option handler for specifying the layout parameters.
/// </summary>
protected override void SetupHandler()
{
// use an instance of the layout as a defaults provider
CompactOrthogonalLayout layout = new CompactOrthogonalLayout();
var topLevelGroup = Handler.AddGroup(TOP_LEVEL);
topLevelGroup.SetAttribute(TableEditorFactory.RENDERING_HINTS_ATTRIBUTE,
(int)TableEditorFactory.RenderingHints.Invisible);
topLevelGroup.SetAttribute(DefaultEditorFactory.RENDERING_HINTS_ATTRIBUTE,
(int)DefaultEditorFactory.RenderingHints.Invisible);
OrthogonalLayout cl = (OrthogonalLayout)layout.CoreLayout;
topLevelGroup.AddList(ORTHOGONAL_LAYOUT_STYLE, new [] { NORMAL, NORMAL_TREE, FIXED_BOX_NODES, FIXED_MIXED }, str2styles[cl.LayoutStyle]);
topLevelGroup.AddList(PLACEMENT_STRATEGY, new[] { STYLE_ROWS, STYLE_PACKED_COMPACT_RECTANGLE }, str2componentStyles[ComponentArrangementStyles.PackedCompactRectangle]);
topLevelGroup.AddDouble(ASPECT_RATIO, layout.AspectRatio);
topLevelGroup.AddInt(GRID, layout.GridSpacing, 1, int.MaxValue);
OrthogonalPatternEdgeRouter oper = new OrthogonalPatternEdgeRouter();
IOptionItem bendCostOptionItem = topLevelGroup.AddDouble(BEND_COST, oper.BendCost);
IOptionItem nodeCrossingCostOptionItem = topLevelGroup.AddDouble(NODE_CROSSING_COST, oper.NodeCrossingCost);
IOptionItem edgeCrossingCostOptionItem = topLevelGroup.AddDouble(EDGE_CROSSING_COST, oper.EdgeCrossingCost);
IOptionItem minimumDistanceOptionItem = topLevelGroup.AddDouble(MINIMUM_DISTANCE, oper.MinimumDistance);
IOptionItem pathFinderOptionItem = topLevelGroup.AddList(PATH_FINDER, PATH_FINDER_ENUM, ORTHOGONAL_SHORTESTPATH_PATH_FINDER);
ConstraintManager cm = new ConstraintManager(Handler);
cm.SetEnabledOnValueEquals(pathFinderOptionItem, ORTHOGONAL_PATTERN_PATH_FINDER, bendCostOptionItem);
cm.SetEnabledOnValueEquals(pathFinderOptionItem, ORTHOGONAL_PATTERN_PATH_FINDER, nodeCrossingCostOptionItem);
cm.SetEnabledOnValueEquals(pathFinderOptionItem, ORTHOGONAL_PATTERN_PATH_FINDER, edgeCrossingCostOptionItem);
cm.SetEnabledOnValueEquals(pathFinderOptionItem, ORTHOGONAL_PATTERN_PATH_FINDER, minimumDistanceOptionItem);
topLevelGroup.AddBool(ROUTE_ALL_EDGES, !layout.InterEdgeRouter.RouteInterEdgesOnly);
}