--- /dev/null
+package org.simantics.district.region;
+
+import java.awt.Shape;
+import java.awt.geom.FlatteningPathIterator;
+import java.awt.geom.Path2D;
+import java.awt.geom.PathIterator;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.UUID;
+
+import org.simantics.Simantics;
+import org.simantics.databoard.Bindings;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.request.UniqueRead;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.QueryIndexUtils;
+import org.simantics.db.layer0.request.PossibleActiveModel;
+import org.simantics.db.layer0.util.RemoverUtil;
+import org.simantics.diagram.stubs.DiagramResource;
+import org.simantics.district.region.ontology.DiagramRegionsResource;
+import org.simantics.layer0.Layer0;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public final class DiagramRegions {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(DiagramRegions.class);
+
+ public static Resource createRegionForDiagram(WriteGraph graph, Resource diagram, String label, double[] coordinates) throws DatabaseException {
+ if (coordinates == null || coordinates.length < 6 || coordinates.length % 2 != 0)
+ throw new IllegalArgumentException("Provided coordinates are not valid : " + Arrays.toString(coordinates));
+ Path2D path = new Path2D.Double();
+ double startX = coordinates[0];
+ double startY = coordinates[1];
+ path.moveTo(startX, startY);
+ for (int i = 2; i < coordinates.length; i++)
+ path.lineTo(coordinates[i], coordinates[++i]);
+
+ path.closePath(); // might not be needed
+ DiagramRegionsResource DRR = DiagramRegionsResource.getInstance(graph);
+ Layer0 L0 = Layer0.getInstance(graph);
+ Resource region = graph.newResource();
+ graph.claim(region, L0.InstanceOf, DRR.Region);
+ graph.claim(diagram, DRR.hasRegion, region);
+ graph.claim(region, DRR.regionOf, diagram);
+ graph.claimLiteral(region, L0.HasName, UUID.randomUUID().toString(), Bindings.STRING);
+ graph.claimLiteral(region, L0.HasLabel, label, Bindings.STRING);
+ graph.claimLiteral(region, DRR.Region_area, coordinates, Bindings.DOUBLE_ARRAY);
+ if (LOGGER.isDebugEnabled())
+ LOGGER.debug("Created region for diagram {} with label {} and area {}", diagram, label, Arrays.toString(coordinates));
+ return region;
+ }
+
+ public static void removeRegion(WriteGraph graph, Resource region) throws DatabaseException {
+ RemoverUtil.remove(graph, region);
+ }
+
+ public static class DiagramRegion {
+
+ private Resource resource;
+ private String label;
+ private Shape shape;
+
+ public DiagramRegion(Resource resource, String label, Shape coordinatesToShape) {
+ this.resource = resource;
+ this.label = label;
+ this.shape = coordinatesToShape;
+ }
+
+ public Resource getResource() {
+ return resource;
+ }
+
+ public String getLabel() {
+ return label;
+ }
+
+ public Shape getShape() {
+ return shape;
+ }
+ }
+
+ public static Collection<DiagramRegion> findRegions(ReadGraph graph, Resource model) throws DatabaseException {
+ List<Resource> diagrams = QueryIndexUtils.searchByType(graph, model, DiagramResource.getInstance(graph).Diagram);
+ Set<DiagramRegion> regions = new HashSet<>();
+
+ Layer0 L0 = Layer0.getInstance(graph);
+
+ for (Resource diagram : diagrams) {
+ Collection<Resource> region = graph.getObjects(diagram, DiagramRegionsResource.getInstance(graph).hasRegion);
+ for (Resource r : region) {
+ String label = graph.getRelatedValue(r, L0.HasLabel, Bindings.STRING);
+ Shape coordinatesToShape = DiagramRegions.coordinatesToShape(graph, r);
+ regions.add(new DiagramRegion(r, label, coordinatesToShape));
+ }
+ }
+ return regions;
+ }
+
+ public static class DiagramRegionsRequest extends UniqueRead<Collection<DiagramRegion>> {
+
+ @Override
+ public Collection<DiagramRegion> perform(ReadGraph graph) throws DatabaseException {
+ return findRegions(graph, graph.syncRequest(new PossibleActiveModel(Simantics.getProjectResource())));
+ }
+ }
+
+ public static Shape coordinatesToShape(ReadGraph graph, Resource region) throws DatabaseException {
+ DiagramRegionsResource DRR = DiagramRegionsResource.getInstance(graph);
+ double[] coordinates = graph.getRelatedValue(region, DRR.Region_area, Bindings.DOUBLE_ARRAY);
+ Path2D path = new Path2D.Double();
+ double startX = coordinates[0];
+ double startY = coordinates[1];
+ path.moveTo(startX, startY);
+ for (int i = 2; i < coordinates.length; i++)
+ path.lineTo(coordinates[i], coordinates[++i]);
+
+ path.closePath(); // might not be needed
+ return path;
+ }
+
+ public static double[] shapeToCoordinates(Shape shape) {
+ PathIterator it = new FlatteningPathIterator(shape.getPathIterator(null), 1);
+ double points[] = new double[6];
+ double moveX = 0, moveY = 0;
+ double thisX = 0, thisY = 0;
+ int type = 0;
+
+ List<Double> coords = new ArrayList<>();
+ // float factor = 1;
+
+ while (!it.isDone()) {
+ type = it.currentSegment(points);
+ switch (type) {
+ case PathIterator.SEG_MOVETO:
+ moveX = points[0];
+ moveY = points[1];
+ coords.add(moveX);
+ coords.add(moveY);
+ break;
+
+ case PathIterator.SEG_CLOSE:
+ points[0] = moveX;
+ points[1] = moveY;
+ // Fall into....
+
+ case PathIterator.SEG_LINETO:
+ thisX = points[0];
+ thisY = points[1];
+ coords.add(thisX);
+ coords.add(thisY);
+ break;
+ }
+ it.next();
+ }
+ double[] finalCoords = new double[coords.size()];
+ for (int i = 0; i < coords.size(); i++) {
+ double d = coords.get(i);
+ finalCoords[i] = d;
+ }
+ return finalCoords;
+ }
+
+ public static Resource getDiagramForRegion(ReadGraph graph, Resource region) throws DatabaseException {
+ DiagramRegionsResource DRR = DiagramRegionsResource.getInstance(graph);
+ Resource diagram = graph.getSingleObject(region, DRR.regionOf);
+ return diagram;
+ }
+}
Code Review / simantics / district.git / blobdiff