org.simantics.district.network.ui/src/org/simantics/district/network/ui/adapters/DistrictNetworkEdgeElement.java

   1 package org.simantics.district.network.ui.adapters;
   2
   3 import java.awt.Color;
   4 import java.awt.geom.Rectangle2D;
   5 import java.util.Collection;
   6 import java.util.Collections;
   7
   8 import org.simantics.district.network.ui.DistrictNetworkEdge;
   9 import org.simantics.district.network.ui.nodes.DistrictNetworkEdgeNode;
  10 import org.simantics.g2d.connection.handler.ConnectionHandler;
  11 import org.simantics.g2d.diagram.handler.Topology.Connection;
  12 import org.simantics.g2d.element.ElementClass;
  13 import org.simantics.g2d.element.ElementUtils;
  14 import org.simantics.g2d.element.IElement;
  15 import org.simantics.g2d.element.SceneGraphNodeKey;
  16 import org.simantics.g2d.element.handler.InternalSize;
  17 import org.simantics.g2d.element.handler.SceneGraph;
  18 import org.simantics.g2d.element.handler.impl.DefaultTransform;
  19 import org.simantics.g2d.element.handler.impl.SimpleElementLayers;
  20 import org.simantics.scenegraph.g2d.G2DParentNode;
  21 import org.simantics.utils.datastructures.hints.IHintContext.Key;
  22 import org.simantics.utils.datastructures.hints.IHintContext.KeyOf;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25
  26 public class DistrictNetworkEdgeElement {
  27
  28     public static final Key KEY_DN_EDGE = new KeyOf(DistrictNetworkEdge.class, "DN_EDGE");
  29     public static final Key KEY_DN_EDGE_NODE = new SceneGraphNodeKey(DistrictNetworkEdgeNode.class, "DN_EDGE_NODE");
  30
  31     public static final ElementClass CLASS =
  32             ElementClass.compile(
  33                     DefaultTransform.INSTANCE,
  34                     DNEdgeInternalSize.INSTANCE,
  35                     DNEdgeSceneGraph.INSTANCE,
  36                     DNEdgeConnectionHandler.INSTANCE,
  37                     SimpleElementLayers.INSTANCE,
  38                     DistrictNetworkAdditionalColor.INSTANCE
  39             ).setId(DistrictNetworkEdgeElement.class.getSimpleName());
  40
  41     static final class DNEdgeSceneGraph implements SceneGraph {
  42
  43         public static final DNEdgeSceneGraph INSTANCE = new DNEdgeSceneGraph();
  44
  45         private static final long serialVersionUID = 8894367073815556871L;
  46
  47         @Override
  48         public void init(IElement edgeElement, G2DParentNode parent) {
  49             DistrictNetworkEdge edge = edgeElement.getHint(KEY_DN_EDGE);
  50             if (edge == null) {
  51                 cleanup(edgeElement);
  52             } else {
  53                 DistrictNetworkEdgeNode node = edgeElement.getHint(KEY_DN_EDGE_NODE);
  54                 if (node == null) {
  55                     node = parent.addNode(ElementUtils.generateNodeId(edgeElement), DistrictNetworkEdgeNode.class);
  56                     edgeElement.setHint(KEY_DN_EDGE_NODE, node);
  57                 }
  58
  59                 node.setColor(ElementUtils.getAdditionalColor(edgeElement, Color.BLUE));
  60
  61                 node.setDNEdge(edge);
  62             }
  63         }
  64
  65         @Override
  66         public void cleanup(IElement edge) {
  67             ElementUtils.removePossibleNode(edge, KEY_DN_EDGE_NODE);
  68             edge.removeHint(KEY_DN_EDGE_NODE);
  69         }
  70     }
  71
  72     static final class DNEdgeInternalSize implements InternalSize {
  73
  74         private static final Logger LOGGER = LoggerFactory.getLogger(DNEdgeInternalSize.class);
  75
  76         private static final long serialVersionUID = -2725017034692179676L;
  77
  78         public static final DNEdgeInternalSize INSTANCE = new DNEdgeInternalSize();
  79
  80         @Override
  81         public Rectangle2D getBounds(IElement e, Rectangle2D size) {
  82             DistrictNetworkEdge edge = e.getHint(KEY_DN_EDGE);
  83             if (size == null)
  84                 size = new Rectangle2D.Double();
  85             if (edge != null)
  86                 edge.getBounds(size);
  87             else
  88                 LOGGER.debug("Element {} does not have edge!", e);
  89
  90             return size;
  91         }
  92
  93     }
  94
  95     static class DNEdgeConnectionHandler implements ConnectionHandler {
  96
  97         private static final long serialVersionUID = -410377314637446238L;
  98
  99         public static final DNEdgeConnectionHandler INSTANCE = new DNEdgeConnectionHandler();
 100
 101         @Override
 102         public Collection<IElement> getChildren(IElement connection, Collection<IElement> result) {
 103             return Collections.emptyList();
 104         }
 105
 106         @Override
 107         public Collection<IElement> getBranchPoints(IElement connection, Collection<IElement> result) {
 108             return Collections.emptyList();
 109         }
 110
 111         @Override
 112         public Collection<IElement> getSegments(IElement connection, Collection<IElement> result) {
 113             return Collections.emptyList();
 114         }
 115
 116         @Override
 117         public Collection<Connection> getTerminalConnections(IElement connection, Collection<Connection> result) {
 118             return Collections.emptyList();
 119         }
 120     }
 121 }