org.simantics.district.network.ui/src/org/simantics/district/network/ui/participants/DNPointerInteractor.java

   1 package org.simantics.district.network.ui.participants;
   2
   3 import java.awt.geom.Point2D;
   4 import java.util.Collections;
   5 import java.util.List;
   6 import java.util.Set;
   7
   8 import org.simantics.district.network.ui.adapters.DistrictNetworkEdgeElement;
   9 import org.simantics.district.network.ui.adapters.DistrictNetworkVertexElement;
  10 import org.simantics.g2d.canvas.ICanvasParticipant;
  11 import org.simantics.g2d.diagram.handler.PickRequest.PickSorter;
  12 import org.simantics.g2d.diagram.participant.pointertool.PointerInteractor;
  13 import org.simantics.g2d.diagram.participant.pointertool.TerminalUtil.TerminalInfo;
  14 import org.simantics.g2d.element.ElementHints;
  15 import org.simantics.g2d.element.IElement;
  16 import org.simantics.scenegraph.g2d.IG2DNode;
  17 import org.simantics.scenegraph.g2d.nodes.SingleElementNode;
  18
  19 public class DNPointerInteractor extends PointerInteractor {
  20
  21     private static class DNPickSorter implements PickSorter {
  22
  23         @Override
  24         public void sort(List<IElement> elements) {
  25             Collections.sort(elements, (e1, e2) -> {
  26                 IG2DNode e1node = getNode(e1);
  27                 IG2DNode e2node = getNode(e2);
  28                 if (e1node.getZIndex() < e2node.getZIndex())
  29                     return -1;
  30                 else if (e1node.getZIndex() > e2node.getZIndex())
  31                     return 1;
  32                 return 0;
  33             });
  34         }
  35
  36         private static IG2DNode getNode(IElement element) {
  37             IG2DNode node = element.getHint(DistrictNetworkEdgeElement.KEY_DN_EDGE_NODE);
  38             if (node == null)
  39                 node = element.getHint(DistrictNetworkVertexElement.KEY_DN_VERTEX_NODE);
  40             if (node == null) {
  41                 node = element.getHint(ElementHints.KEY_SG_NODE);
  42                 if (node instanceof SingleElementNode) {
  43                     SingleElementNode snode = (SingleElementNode) node;
  44                     node = snode.getNodes().iterator().next();
  45                 }
  46             }
  47             return node;
  48         }
  49     }
  50
  51     public DNPointerInteractor() {
  52         super(new DNPickSorter());
  53     }
  54
  55     @Override
  56     protected ICanvasParticipant createConnectTool(TerminalInfo ti, int mouseId, Point2D startCanvasPos) {
  57         return super.createConnectTool(ti, mouseId, startCanvasPos);
  58     }
  59
  60     @Override
  61     protected ICanvasParticipant createTranslateTool(int mouseId, Point2D startCanvasPos, Point2D curCanvasPos,
  62             Set<IElement> elementsToDrag) {
  63         return new DNTranslateMode(startCanvasPos, curCanvasPos, mouseId, elementsToDrag);
  64     }
  65 }