Examples with DCDirection org.eclipse.elk.alg.disco.graph.DCDirection used on opensource projects

Example 1 with DCDirection

use of org.eclipse.elk.alg.disco.graph.DCDirection in project elk by eclipse.

the class DCPolyomino method addExtensionsToPoly.

/**
 * Adds extenstions to this polyomino taken from a {@link DCElement} of the component it represents.
 *
 * @param elem
 *            an element of the component this polyomino represents
 */
private void addExtensionsToPoly(final DCElement elem) {
    List<DCExtension> extensions = elem.getExtensions();
    KVector compCorner = representee.getMinCorner();
    KVector polyoOffset = getOffset();
    double baseX = compCorner.x - polyoOffset.x;
    double baseY = compCorner.y - polyoOffset.y;
    ElkRectangle elemPos = elem.getBounds();
    baseX = elemPos.x - baseX;
    baseY = elemPos.y - baseY;
    for (DCExtension extension : extensions) {
        KVector pos = extension.getOffset();
        double xe = baseX + pos.x;
        double ye = baseY + pos.y;
        int xp = (int) (xe / cellSizeX);
        int yp = (int) (ye / cellSizeY);
        DCDirection dir = extension.getDirection();
        Direction polyDir;
        switch(dir) {
            case NORTH:
                polyDir = Direction.NORTH;
                break;
            case EAST:
                polyDir = Direction.EAST;
                break;
            case SOUTH:
                polyDir = Direction.SOUTH;
                break;
            default:
                polyDir = Direction.WEST;
        }
        if (dir.isHorizontal()) {
            int ypPlusWidth = (int) ((ye + extension.getWidth()) / cellSizeY);
            addExtension(polyDir, yp, ypPlusWidth);
            if (dir.equals(DCDirection.WEST)) {
                weaklyBlockArea(0, yp, xp, ypPlusWidth);
            } else {
                // direction is EAST
                weaklyBlockArea(xp, yp, pWidth - 1, ypPlusWidth);
            }
        } else {
            // direction is vertical
            int xpPlusWidth = (int) ((xe + extension.getWidth()) / cellSizeX);
            addExtension(polyDir, xp, xpPlusWidth);
            if (dir.equals(DCDirection.NORTH)) {
                weaklyBlockArea(xp, 0, xpPlusWidth, yp);
            } else {
                // direction is SOUTH
                weaklyBlockArea(xp, yp, xpPlusWidth, pHeight - 1);
            }
        }
    }
}

Example 2 with DCDirection

use of org.eclipse.elk.alg.disco.graph.DCDirection in project elk by eclipse.

the class ElkGraphTransformer method nearestSide.

/**
 * Computes for a given {@link KVector} relative to the upper left corner of a given node, which of its four sides
 * is closest to the point the vector describes.
 *
 * @param point
 *            vector to compare
 * @param node
 *            node as reference to the vector
 * @return side of the node which is closest to the point
 */
private DCDirection nearestSide(final KVector point, final ElkNode node) {
    double distance;
    double shortestDistance = Double.MAX_VALUE;
    DCDirection result = DCDirection.NORTH;
    // NORTHVALUE
    shortestDistance = Math.abs(point.y);
    // SOUTHVALUE
    distance = Math.abs(node.getHeight() - point.y);
    if (distance < shortestDistance) {
        shortestDistance = distance;
        result = DCDirection.SOUTH;
    }
    // WESTVALUE
    distance = Math.abs(point.x);
    if (distance < shortestDistance) {
        shortestDistance = distance;
        result = DCDirection.WEST;
    }
    // EASTVALUE
    distance = Math.abs(node.getWidth() - point.x);
    if (distance < shortestDistance) {
        shortestDistance = distance;
        result = DCDirection.EAST;
    }
    return result;
}

Example 3 with DCDirection

use of org.eclipse.elk.alg.disco.graph.DCDirection in project elk by eclipse.

the class ElkGraphTransformer method applyLayout.

@Override
public void applyLayout() {
    KVector graphDimensions = transformedGraph.getDimensions();
    double newWidth = graphDimensions.x;
    double newHeight = graphDimensions.y;
    double oldWidth = parent.getWidth();
    double oldHeight = parent.getHeight();
    // Adjust size of layout
    parent.setDimensions(graphDimensions.x, graphDimensions.y);
    double xFactor = newWidth / oldWidth;
    double yFactor = newHeight / oldHeight;
    for (ElkLabel label : parent.getLabels()) {
        label.setX(label.getX() * xFactor);
        label.setY(label.getY() * yFactor);
    }
    for (ElkPort port : parent.getPorts()) {
        double px = port.getX();
        double py = port.getY();
        if (px > 0) {
            port.setX(px * xFactor);
        }
        if (py > 0) {
            port.setY(py * yFactor);
        }
    }
    // Apply offsets, whenever necessary.
    elementMapping.forEach(new OffsetApplier());
    List<ElkPort> adjustedPorts = Lists.newArrayList();
    ElkPort portToAdjust;
    for (Entry<ElkEdge, DCExtension> inEntry : incomingExtensionsMapping.entrySet()) {
        ElkEdge edge = inEntry.getKey();
        DCDirection dir = inEntry.getValue().getDirection();
        ElkEdgeSection edgeSection = ElkGraphUtil.firstEdgeSection(edge, false, false);
        KVectorChain newPoints = adjustFirstSegment(ElkGraphUtil.getSourceNode(edge), ElkUtil.createVectorChain(edgeSection), dir);
        ElkUtil.applyVectorChain(newPoints, edgeSection);
        portToAdjust = ElkGraphUtil.getSourcePort(edge);
        if (portToAdjust != null && !adjustedPorts.contains(portToAdjust)) {
            adjustedPorts.add(portToAdjust);
            adjustRelatedPort(portToAdjust, newPoints.getFirst(), dir);
        }
    }
    for (Entry<ElkEdge, DCExtension> outEntry : outgoingExtensionsMapping.entrySet()) {
        ElkEdge edge = outEntry.getKey();
        DCDirection dir = outEntry.getValue().getDirection();
        ElkEdgeSection edgeSection = ElkGraphUtil.firstEdgeSection(edge, false, false);
        KVectorChain newPoints = adjustFirstSegment(ElkGraphUtil.getTargetNode(edge), KVectorChain.reverse(ElkUtil.createVectorChain(edgeSection)), dir);
        newPoints = KVectorChain.reverse(newPoints);
        ElkUtil.applyVectorChain(newPoints, edgeSection);
        portToAdjust = ElkGraphUtil.getTargetPort(edge);
        if (portToAdjust != null && !adjustedPorts.contains(portToAdjust)) {
            adjustedPorts.add(portToAdjust);
            adjustRelatedPort(portToAdjust, newPoints.getLast(), dir);
        }
    }
}

Example 4 with DCDirection

use of org.eclipse.elk.alg.disco.graph.DCDirection in project elk by eclipse.

the class ElkGraphTransformer method importExtension.

/**
 * Transforms a {@link ElkEdge} into a {@link DCElement} without destroying it. Edges can have their own
 * {@link ElkLabel ElkLabels}, so they will be transformed, too.
 *
 * @param edge
 *            Edge to be transformed into a {@link DCElement}
 * @param newComponent
 *            Collection representing the component the edge and its associated labels (if any) belong to. Newly
 *            generated {@link DCElement DCElements} will be added to it
 * @return {@link DCElement} resulting from the transformation
 */
/**
 * Transforms a short hierarchical {@link ElkEdge} into a {@link DCExtension} without destroying it. Edges can have
 * their own {@link ElkLabel ElkLabels}, so they will be transformed, too.
 *
 * @param edge
 *            Edge to be transformed into a {@link DCExtension}
 * @param newComponent
 *            component the extension will belong to
 * @param outgoingExtension
 *            true, if the edge should be handled as an outgoing extension; false, otherwise
 */
private void importExtension(final ElkEdge edge, final Collection<DCElement> newComponent, final boolean outgoingExtension) {
    ElkEdgeSection edgeSection = ElkGraphUtil.firstEdgeSection(edge, false, false);
    KVectorChain points = ElkUtil.createVectorChain(edgeSection);
    if (outgoingExtension) {
        points = KVectorChain.reverse(points);
    }
    // Is going to hold the extension
    DCElement shape;
    double thickness = edge.getProperty(DisCoOptions.EDGE_THICKNESS);
    KVector outerPoint = points.getFirst();
    KVector innerPoint = points.get(1);
    if (points.size() > 2) {
        List<KVector> fixedEdgePoints = Lists.newArrayList();
        fixedEdgePoints.addAll(points.subList(1, points.size()));
        KVectorChain contour = getContour(fixedEdgePoints, thickness + componentSpacing);
        shape = new DCElement(contour);
        shape.copyProperties(edge);
        newComponent.add(shape);
    } else {
        if (outgoingExtension) {
            shape = elementMapping.get(ElkGraphUtil.getSourceNode(edge));
        } else {
            shape = elementMapping.get(ElkGraphUtil.getTargetNode(edge));
        }
    }
    // Construct the extension and add to mapping
    ElkNode extParent = ElkGraphUtil.getSourceNode(edge);
    if (outgoingExtension) {
        extParent = ElkGraphUtil.getTargetNode(edge);
    }
    DCDirection dir = nearestSide(outerPoint, extParent);
    double extensionWidth = thickness + componentSpacing;
    KVector middlePos;
    if (dir.isHorizontal()) {
        // West or east extension
        extensionWidth += Math.abs(outerPoint.y - innerPoint.y);
        middlePos = new KVector(innerPoint.x, (innerPoint.y + outerPoint.y) / 2);
    } else {
        extensionWidth += Math.abs(outerPoint.x - innerPoint.x);
        middlePos = new KVector((innerPoint.x + outerPoint.x) / 2, innerPoint.y);
    }
    if (outgoingExtension) {
        outgoingExtensionsMapping.put(edge, new DCExtension(shape, dir, middlePos, extensionWidth));
    } else {
        incomingExtensionsMapping.put(edge, new DCExtension(shape, dir, middlePos, extensionWidth));
    }
    elementMapping.put(edge, shape);
    // ElkEdges can have labels, too!
    List<ElkLabel> labels = edge.getLabels();
    for (ElkLabel label : labels) {
        // "true" - ElkLabels belonging to an ElkEdge have absolute coordinates and have to be considered when
        // applying
        // changes to the DCGraph back to the original graph.
        DCElement componentLabel = importElkShape(label, true, 0.0f, 0.0f);
        newComponent.add(componentLabel);
    }
}