Examples with ElkNode org.eclipse.elk.graph.ElkNode used on opensource projects

Example 11 with ElkNode

use of org.eclipse.elk.graph.ElkNode in project osate2 by osate.

the class ElkGraphBuilder method createElkLabels.

private void createElkLabels(final DiagramElement parentElement, final ElkGraphElement parentLayoutElement, final LayoutMapping mapping) {
    // Don't create labels for ElkPort. The bounds of the port contain their labels.
    if (parentLayoutElement instanceof ElkPort) {
        return;
    }
    final boolean isConnection = parentElement.getGraphic() instanceof AgeConnection;
    final Style style = styleProvider.getStyle(parentElement);
    if (style.getPrimaryLabelVisible()) {
        // Create Primary Label
        if (parentElement.getLabelName() != null) {
            final ElkLabel elkLabel = createElkLabel(parentLayoutElement, parentElement.getLabelName(), layoutInfoProvider.getPrimaryLabelSize(parentElement));
            if (isConnection) {
                if (!layoutConnectionLabels) {
                    elkLabel.setProperty(CoreOptions.NO_LAYOUT, true);
                }
                mapping.getGraphMap().put(elkLabel, new PrimaryConnectionLabelReference(parentElement));
            }
        }
    }
    // Create label for annotations which are part of the graphic configuration. These are only supported by non-connections.
    if (!isConnection && parentElement.getGraphicalConfiguration().getAnnotation() != null) {
        createElkLabel(parentLayoutElement, parentElement.getGraphicalConfiguration().getAnnotation(), layoutInfoProvider.getAnnotationLabelSize(parentElement));
    }
    // Create Secondary Labels
    parentElement.getChildren().stream().filter(c -> c.getGraphic() instanceof Label).forEachOrdered(labelElement -> {
        final ElkLabel elkLabel = createElkLabel(parentLayoutElement, labelElement.getLabelName(), layoutInfoProvider.getPrimaryLabelSize(labelElement));
        if (isConnection) {
            if (!layoutConnectionLabels) {
                elkLabel.setProperty(CoreOptions.NO_LAYOUT, true);
            }
            mapping.getGraphMap().put(elkLabel, new SecondaryConnectionLabelReference(labelElement));
        }
    });
    if (parentLayoutElement instanceof ElkNode) {
        parentLayoutElement.setProperty(CoreOptions.NODE_LABELS_PLACEMENT, getNodeLabelPlacement(style));
    }
}

Example 12 with ElkNode

use of org.eclipse.elk.graph.ElkNode in project osate2 by osate.

the class ElkGraphBuilder method createElkPortsForElements.

/**
 * Before calling this method, all labels for the parent node should have already been created and the node labels placement property must be set for the parent.
 * @param elements
 * @param parent
 * @param mapping
 */
private void createElkPortsForElements(final Collection<DiagramElement> elements, final ElkNode parent, final LayoutMapping mapping) {
    final EnumSet<NodeLabelPlacement> nodeLabelPlacement = parent.getProperty(CoreOptions.NODE_LABELS_PLACEMENT);
    final boolean labelsAtTop = nodeLabelPlacement != null && nodeLabelPlacement.contains(NodeLabelPlacement.V_TOP);
    final double topPadding = labelsAtTop ? parent.getLabels().stream().mapToDouble(l -> l.getY() + l.getHeight()).sum() : 0.0;
    // Group children by the port side to which they should be assigned.
    final List<DiagramElement> dockedShapes = elements.stream().filter(dockedShapeFilter).collect(Collectors.toList());
    final boolean diagramElementIncludesNestedPorts = dockedShapes.stream().flatMap(de -> de.getChildren().stream()).anyMatch(dockedShapeFilter);
    // Set the flag to indicate that there are nested ports which will not be included in the final layout graph
    if (omitNestedPorts && diagramElementIncludesNestedPorts) {
        mapping.getLayoutGraph().setProperty(AgeLayoutOptions.NESTED_PORTS_WERE_OMITTED, true);
    }
    // Set port constraints and graph hierarchy handling of the parent based on whether the diagram element actually has nested ports.
    final boolean hasNestedPorts = !omitNestedPorts && diagramElementIncludesNestedPorts;
    PortConstraints portConstraints;
    if (dockedShapes.size() == 0) {
        // Don't constrain ports if there aren't any. As of 2017-10-11, some other values can affect the layout even if the node does not contain ports.
        portConstraints = PortConstraints.FREE;
    } else {
        if (hasNestedPorts || options.layoutPortsOnDefaultSides) {
            portConstraints = PortConstraints.FIXED_POS;
        } else {
            portConstraints = PortConstraints.FREE;
        }
    }
    parent.setProperty(CoreOptions.PORT_CONSTRAINTS, portConstraints);
    final Map<PortSide, List<DiagramElement>> groupedDockedElements = dockedShapes.stream().collect(Collectors.groupingBy(de -> getPortSide(de, hasNestedPorts), HashMap::new, Collectors.toCollection(ArrayList::new)));
    // Determine padding
    // Need to pad both left and right sides equally if ELK is determining the side of ports. Otherwise, the space for the
    // port may overlap with shapes. This is likely caused by adjusting the border offset of ports
    // to lay out ports within the bounds of the containing shape
    final boolean padOppositeSides = !portConstraints.isSideFixed();
    final ElkPadding parentPadding = new ElkPadding(parent.getParent() == null || parent.getParent().getParent() == null ? 0.0 : portAndContentsPadding);
    for (final Entry<PortSide, List<DiagramElement>> entry : groupedDockedElements.entrySet()) {
        final PortSide side = entry.getKey();
        double maxSize = 0;
        for (final DiagramElement de : entry.getValue()) {
            maxSize = Math.max(maxSize, getOrthogonalSize(de, side));
        }
        // Update padding for the side
        final double sidePadding = maxSize + portAndContentsPadding;
        switch(side) {
            case NORTH:
                parentPadding.top = Math.max(parentPadding.top, sidePadding);
                break;
            case SOUTH:
                parentPadding.bottom = Math.max(parentPadding.bottom, sidePadding);
                break;
            case EAST:
                parentPadding.right = Math.max(parentPadding.right, sidePadding);
                if (padOppositeSides) {
                    parentPadding.left = Math.max(parentPadding.left, sidePadding);
                }
                break;
            case WEST:
                parentPadding.left = Math.max(parentPadding.left, sidePadding);
                if (padOppositeSides) {
                    parentPadding.right = Math.max(parentPadding.right, sidePadding);
                }
                break;
            default:
                // Ignore
                break;
        }
    }
    // Create and position the ports
    for (final Entry<PortSide, List<DiagramElement>> portSideToElementsEntry : groupedDockedElements.entrySet()) {
        final PortSide side = portSideToElementsEntry.getKey();
        final double additionalPadding;
        if (PortSide.SIDES_NORTH_SOUTH.contains(side)) {
            additionalPadding = Math.max(parentPadding.left, parentPadding.right);
        } else {
            additionalPadding = topPadding;
        }
        createAndPositionPorts(parent, portSideToElementsEntry.getValue(), portSideToElementsEntry.getKey(), additionalPadding, mapping, hasNestedPorts);
    }
    // Set the padding
    parent.setProperty(CoreOptions.PADDING, parentPadding);
}

Example 13 with ElkNode

use of org.eclipse.elk.graph.ElkNode in project elk by eclipse.

the class NGraph method writeDebugGraph.

/**
 * Converts this {@link NGraph} to a KGraph and writes it to the specified filed.
 *
 * @param filePath a path to a file on the filesystem
 */
public void writeDebugGraph(final String filePath) {
    ElkNode elkGraph = ElkGraphUtil.createGraph();
    elkGraph.setProperty(CoreOptions.DIRECTION, Direction.DOWN);
    Map<NNode, ElkNode> nodeMap = Maps.newHashMap();
    for (NNode nNode : nodes) {
        ElkNode elkNode = ElkGraphUtil.createNode(elkGraph);
        nodeMap.put(nNode, elkNode);
        ElkGraphUtil.createLabel(nNode.type + " " + nNode.layer, elkNode);
    }
    for (NNode nNode : nodes) {
        for (NEdge nEdge : nNode.getOutgoingEdges()) {
            ElkEdge elkEdge = ElkGraphUtil.createSimpleEdge(nodeMap.get(nEdge.source), nodeMap.get(nEdge.target));
            ElkGraphUtil.createLabel(nEdge.weight + " " + nEdge.delta, elkEdge);
        }
    }
    ResourceSet rs = new ResourceSetImpl();
    Resource r = rs.createResource(URI.createFileURI(filePath));
    r.getContents().add(elkGraph);
    try {
        r.save(Collections.emptyMap());
    } catch (IOException e) {
        e.printStackTrace();
    }
}

Example 14 with ElkNode

use of org.eclipse.elk.graph.ElkNode in project elk by eclipse.

the class GmfDiagramLayoutConnector method processConnections.

/**
 * Creates new edges and takes care of the labels for each connection identified in the
 * {@code buildLayoutGraphRecursively} method.
 *
 * @param mapping
 *            the layout mapping
 */
protected void processConnections(final LayoutMapping mapping) {
    Map<EReference, ElkEdge> reference2EdgeMap = new HashMap<>();
    for (ConnectionEditPart connection : mapping.getProperty(CONNECTIONS)) {
        boolean isOppositeEdge = false;
        Optional<EdgeLabelPlacement> edgeLabelPlacement = Optional.empty();
        ElkEdge edge;
        // Check whether the edge belongs to an Ecore reference, which may have opposites.
        // This is required for the layout of Ecore diagrams, since the bend points of
        // opposite references are kept synchronized by the editor.
        EObject modelObject = connection.getNotationView().getElement();
        if (modelObject instanceof EReference) {
            EReference reference = (EReference) modelObject;
            edge = reference2EdgeMap.get(reference.getEOpposite());
            if (edge != null) {
                edgeLabelPlacement = Optional.of(EdgeLabelPlacement.TAIL);
                isOppositeEdge = true;
            } else {
                edge = ElkGraphUtil.createEdge(null);
                reference2EdgeMap.put(reference, edge);
            }
        } else {
            edge = ElkGraphUtil.createEdge(null);
        }
        BiMap<Object, ElkGraphElement> inverseGraphMap = mapping.getGraphMap().inverse();
        // find a proper source node and source port
        ElkGraphElement sourceElem;
        EditPart sourceObj = connection.getSource();
        if (sourceObj instanceof ConnectionEditPart) {
            sourceElem = inverseGraphMap.get(((ConnectionEditPart) sourceObj).getSource());
            if (sourceElem == null) {
                sourceElem = inverseGraphMap.get(((ConnectionEditPart) sourceObj).getTarget());
            }
        } else {
            sourceElem = inverseGraphMap.get(sourceObj);
        }
        ElkConnectableShape sourceShape = null;
        ElkPort sourcePort = null;
        ElkNode sourceNode = null;
        if (sourceElem instanceof ElkNode) {
            sourceNode = (ElkNode) sourceElem;
            sourceShape = sourceNode;
        } else if (sourceElem instanceof ElkPort) {
            sourcePort = (ElkPort) sourceElem;
            sourceNode = sourcePort.getParent();
            sourceShape = sourcePort;
        } else {
            continue;
        }
        // find a proper target node and target port
        ElkGraphElement targetElem;
        EditPart targetObj = connection.getTarget();
        if (targetObj instanceof ConnectionEditPart) {
            targetElem = inverseGraphMap.get(((ConnectionEditPart) targetObj).getTarget());
            if (targetElem == null) {
                targetElem = inverseGraphMap.get(((ConnectionEditPart) targetObj).getSource());
            }
        } else {
            targetElem = inverseGraphMap.get(targetObj);
        }
        ElkConnectableShape targetShape = null;
        ElkNode targetNode = null;
        ElkPort targetPort = null;
        if (targetElem instanceof ElkNode) {
            targetNode = (ElkNode) targetElem;
            targetShape = targetNode;
        } else if (targetElem instanceof ElkPort) {
            targetPort = (ElkPort) targetElem;
            targetNode = targetPort.getParent();
            targetShape = targetPort;
        } else {
            continue;
        }
        // calculate offset for edge and label coordinates
        ElkNode edgeContainment = ElkGraphUtil.findLowestCommonAncestor(sourceNode, targetNode);
        KVector offset = new KVector();
        ElkUtil.toAbsolute(offset, edgeContainment);
        if (!isOppositeEdge) {
            // set source and target
            edge.getSources().add(sourceShape);
            edge.getTargets().add(targetShape);
            // now that source and target are set, put the edge into the graph
            edgeContainment.getContainedEdges().add(edge);
            mapping.getGraphMap().put(edge, connection);
            // store the current coordinates of the edge
            setEdgeLayout(edge, connection, offset);
        }
        // process edge labels
        processEdgeLabels(mapping, connection, edge, edgeLabelPlacement, offset);
    }
}

Example 15 with ElkNode

use of org.eclipse.elk.graph.ElkNode in project elk by eclipse.

the class GmfDiagramLayoutConnector method applyLayout.

@Override
public void applyLayout(final LayoutMapping mapping, final IPropertyHolder settings) {
    boolean zoomToFit = settings.getProperty(CoreOptions.ZOOM_TO_FIT);
    IWorkbenchPart workbenchPart = mapping.getWorkbenchPart();
    int animationTime = calcAnimationTime(mapping, settings, workbenchPart != null && !workbenchPart.getSite().getPage().isPartVisible(workbenchPart));
    mapping.setProperty(ANIMATION_TIME, animationTime);
    Object layoutGraphObj = mapping.getParentElement();
    if (zoomToFit && layoutGraphObj instanceof EditPart) {
        // determine pre- or post-layout zoom
        DiagramEditPart diagramEditPart = GmfDiagramLayoutConnector.getDiagramEditPart((EditPart) layoutGraphObj);
        if (diagramEditPart == null) {
            applyLayout(mapping, animationTime);
            return;
        }
        ZoomManager zoomManager = ((RenderedDiagramRootEditPart) diagramEditPart.getRoot()).getZoomManager();
        ElkNode parentNode = mapping.getLayoutGraph();
        Dimension available = zoomManager.getViewport().getClientArea().getSize();
        double desiredWidth = parentNode.getWidth();
        double scaleX = Math.min(available.width / desiredWidth, zoomManager.getMaxZoom());
        double desiredHeight = parentNode.getHeight();
        double scaleY = Math.min(available.height / desiredHeight, zoomManager.getMaxZoom());
        final double scale = Math.min(scaleX, scaleY);
        final double oldScale = zoomManager.getZoom();
        if (scale < oldScale) {
            // we're zooming out, so do it before layout is applied
            zoomManager.setViewLocation(new Point(0, 0));
            zoomManager.setZoom(scale);
            zoomManager.setViewLocation(new Point(0, 0));
        }
        applyLayout(mapping, animationTime);
        if (scale > oldScale) {
            // we're zooming in, so do it after layout is applied
            zoomManager.setViewLocation(new Point(0, 0));
            zoomManager.setZoom(scale);
            zoomManager.setViewLocation(new Point(0, 0));
        }
    } else {
        applyLayout(mapping, animationTime);
    }
}