Examples with DirectionCongruency org.eclipse.elk.alg.layered.options.DirectionCongruency used on opensource projects

Example 1 with DirectionCongruency

use of org.eclipse.elk.alg.layered.options.DirectionCongruency in project elk by eclipse.

the class GraphTransformer method process.

@Override
public void process(final LGraph layeredGraph, final IElkProgressMonitor monitor) {
    monitor.begin("Graph transformation (" + mode + ")", 1);
    // We need to add all layerless nodes as well as all nodes in layers since this processor
    // is run twice -- once before layering, and once afterwards
    List<LNode> nodes = Lists.newArrayList(layeredGraph.getLayerlessNodes());
    for (Layer layer : layeredGraph.getLayers()) {
        nodes.addAll(layer.getNodes());
    }
    // graph transformations for unusual layout directions
    DirectionCongruency congruency = layeredGraph.getProperty(LayeredOptions.DIRECTION_CONGRUENCY);
    if (congruency == DirectionCongruency.READING_DIRECTION) {
        // --------------------------------------------------------------
        switch(layeredGraph.getProperty(LayeredOptions.DIRECTION)) {
            case LEFT:
                mirrorAllX(layeredGraph, nodes);
                break;
            case DOWN:
                transposeAll(layeredGraph, nodes);
                break;
            case UP:
                if (mode == Mode.TO_INTERNAL_LTR) {
                    transposeAll(layeredGraph, nodes);
                    mirrorAllY(layeredGraph, nodes);
                } else {
                    mirrorAllY(layeredGraph, nodes);
                    transposeAll(layeredGraph, nodes);
                }
                break;
        }
    } else {
        if (mode == Mode.TO_INTERNAL_LTR) {
            // --------------------------------------------------------------
            switch(layeredGraph.getProperty(LayeredOptions.DIRECTION)) {
                case LEFT:
                    mirrorAllX(layeredGraph, nodes);
                    mirrorAllY(layeredGraph, nodes);
                    break;
                case DOWN:
                    rotate90Clockwise(layeredGraph, nodes);
                    break;
                case UP:
                    rotate90CounterClockwise(layeredGraph, nodes);
                    break;
            }
        } else {
            // --------------------------------------------------------------
            switch(layeredGraph.getProperty(LayeredOptions.DIRECTION)) {
                case LEFT:
                    mirrorAllX(layeredGraph, nodes);
                    mirrorAllY(layeredGraph, nodes);
                    break;
                case DOWN:
                    rotate90CounterClockwise(layeredGraph, nodes);
                    break;
                case UP:
                    rotate90Clockwise(layeredGraph, nodes);
                    break;
            }
        }
    }
    monitor.done();
}