show node labels in preview not persisting

[johngsandiford]

Hi,

When I set SHOW_NODE_LABELS to true on the preview model, it is not persisted when saved to a gephi file and then opened in the UI. If I export to pdf if works, but not when I save to a gephi file.

Please advise what I am doing wrong, or if this is a bug. Many thanks

var pc = Lookup.getDefault().lookup(ProjectController.class);
        pc.newProject();
        Workspace workspace = pc.getCurrentWorkspace();

        var graphModel = Lookup.getDefault().lookup(GraphController.class).getGraphModel(workspace);

        var n0 = graphModel.factory().newNode("n0");
        n0.setLabel("Node 0");
        var n1 = graphModel.factory().newNode("n1");
        n1.setLabel("Node 1");

        var e1 = graphModel.factory().newEdge(n1, n0, 1, true);

        var directedGraph = graphModel.getDirectedGraph();
        directedGraph.addNode(n0);
        directedGraph.addNode(n1);
        directedGraph.addEdge(e1);

        System.out.println("Nodes " + directedGraph.getNodeCount());

        var appearanceController = Lookup.getDefault().lookup(AppearanceController.class);
        var appearanceModel = appearanceController.getModel();

        // Rank color by Degree
        Function degreeRanking = appearanceModel.getNodeFunction(graphModel.defaultColumns()
                .degree(), RankingElementColorTransformer.class);
        RankingElementColorTransformer degreeTransformer = degreeRanking.getTransformer();
        degreeTransformer.setColors(new Color[]{new Color(0xFEF0D9), new Color(0xB30000)});
        degreeTransformer.setColorPositions(new float[]{0f, 1f});
        appearanceController.transform(degreeRanking);

        // Get Centrality
        GraphDistance distance = new GraphDistance();
        distance.setDirected(true);
        distance.execute(graphModel);

        // Rank size by centrality
        Column centralityColumn = graphModel.getNodeTable().getColumn(GraphDistance.BETWEENNESS);
        Function centralityRanking = appearanceModel.getNodeFunction(centralityColumn, RankingNodeSizeTransformer.class);
        RankingNodeSizeTransformer centralityTransformer = (RankingNodeSizeTransformer) centralityRanking.getTransformer();
        centralityTransformer.setMinSize(3);
        centralityTransformer.setMaxSize(10);
        appearanceController.transform(centralityRanking);

        // Rank label size - set a multiplier size
        Function centralityRanking2 = appearanceModel.getNodeFunction(centralityColumn, RankingLabelSizeTransformer.class);
        RankingLabelSizeTransformer labelSizeTransformer = (RankingLabelSizeTransformer) centralityRanking2.getTransformer();
        labelSizeTransformer.setMinSize(1);
        labelSizeTransformer.setMaxSize(3);
        appearanceController.transform(centralityRanking2);

        var previewController = Lookup.getDefault().lookup(PreviewController.class);
        var previewModel = previewController.getModel();
        previewModel.getProperties().putValue(PreviewProperty.SHOW_NODE_LABELS, Boolean.TRUE);
        previewController.refreshPreview();

        var file = new File("preview-issue.gephi");

        file.createNewFile();   // to get around a bug in 0.10.1
        pc.saveProject(pc.getCurrentProject(), file);