2 package org.simantics.district.network.ui;
4 import java.awt.geom.Point2D;
5 import java.util.ArrayList;
8 import org.simantics.district.network.ui.adapters.DistrictNetworkVertexElement;
9 import org.simantics.district.network.ui.nodes.DistrictNetworkVertexNode;
10 import org.simantics.district.network.ui.nodes.NetworkDrawingNode;
11 import org.simantics.g2d.canvas.impl.DependencyReflection.Dependency;
12 import org.simantics.g2d.canvas.impl.SGNodeReflection.SGInit;
13 import org.simantics.g2d.diagram.IDiagram;
14 import org.simantics.g2d.diagram.handler.PickContext;
15 import org.simantics.g2d.diagram.handler.PickRequest;
16 import org.simantics.g2d.diagram.participant.AbstractDiagramParticipant;
17 import org.simantics.g2d.element.IElement;
18 import org.simantics.scenegraph.g2d.G2DNode;
19 import org.simantics.scenegraph.g2d.G2DParentNode;
20 import org.simantics.utils.datastructures.hints.IHintContext.Key;
21 import org.simantics.utils.datastructures.hints.IHintContext.KeyOf;
23 public class NetworkDrawingParticipant extends AbstractDiagramParticipant {
29 * A hint key for terminal pick distance in control pixels.
32 public static final Key KEY_PICK_DISTANCE = new KeyOf(Double.class, "PICK_DISTANCE");
35 * Default terminal pick distance in control pixels.
36 * @see #DEFAULT_PICK_DISTANCE
38 public static final double PICK_DIST = 10;
40 private NetworkDrawingNode node;
43 public void initSG(G2DParentNode parent) {
44 node = parent.addNode("networkDrawingNode", NetworkDrawingNode.class);
45 node.setNetworkDrawingParticipant(this);
49 protected void onDiagramSet(IDiagram newDiagram, IDiagram oldDiagram) {
50 node.setDiagram(newDiagram);
53 public boolean pickHoveredElement(Point2D currentMousePos) {
54 PickRequest req = new PickRequest(currentMousePos.getX(), currentMousePos.getY());
55 List<IElement> pickables = new ArrayList<IElement>();
56 pick.pick(diagram, req, pickables);
58 List<IElement> snap = new ArrayList<>(diagram.getSnapshot());
60 snap.removeAll(pickables);
62 boolean changed = false;
63 for (IElement sn : snap) {
64 G2DNode node = sn.getHint(DistrictNetworkVertexElement.KEY_DN_VERTEX_NODE);
65 if (node instanceof DistrictNetworkVertexNode) {
66 if (((DistrictNetworkVertexNode) node).hover(false) && !changed) {
72 for (IElement elem : pickables) {
73 G2DNode node = elem.getHint(DistrictNetworkVertexElement.KEY_DN_VERTEX_NODE);
74 if (node instanceof DistrictNetworkVertexNode) {
75 if (((DistrictNetworkVertexNode) node).hover(true) && !changed) {