org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/common/SelectionHighlighter.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012, 2013 Association for Decentralized Information Management in
   3  * Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.g3d.vtk.common;
  13
  14 import java.util.ArrayList;
  15 import java.util.Collection;
  16 import java.util.List;
  17
  18 import org.eclipse.jface.viewers.ISelection;
  19 import org.eclipse.jface.viewers.ISelectionChangedListener;
  20 import org.eclipse.jface.viewers.SelectionChangedEvent;
  21 import org.simantics.g3d.scenegraph.IG3DNode;
  22 import org.simantics.g3d.scenegraph.NodeHighlighter;
  23 import org.simantics.g3d.scenegraph.NodeHighlighter.HighlightEventType;
  24 import org.simantics.g3d.scenegraph.NodeHighlighter.HighlightObjectType;
  25 import org.simantics.g3d.scenegraph.base.INode;
  26 import org.simantics.g3d.tools.AdaptationUtils;
  27 import org.simantics.utils.threads.AWTThread;
  28 import org.simantics.utils.threads.ThreadUtils;
  29
  30 import vtk.vtkActor;
  31 import vtk.vtkAlgorithm;
  32 import vtk.vtkAlgorithmOutput;
  33 import vtk.vtkFeatureEdges;
  34 import vtk.vtkMapper;
  35 import vtk.vtkProp;
  36 import vtk.vtkProperty;
  37
  38 public class SelectionHighlighter<DBObject> implements ISelectionChangedListener {
  39
  40         protected VtkView panel;
  41         protected VTKNodeMap<DBObject,?> nodeMap;
  42
  43         protected List<IG3DNode> selectedNodes = new ArrayList<IG3DNode>();
  44         protected List<vtkActor> selectedActors = new ArrayList<vtkActor>();
  45
  46         protected HighlightObjectType type = HighlightObjectType.Node;
  47
  48         public SelectionHighlighter(VtkView panel, VTKNodeMap<DBObject,?> nodeMap) {
  49                 this.panel = panel;
  50                 this.nodeMap = nodeMap;
  51         }
  52
  53         @Override
  54         public void selectionChanged(SelectionChangedEvent event) {
  55                 final ISelection s = event.getSelection();
  56
  57                 if (Thread.currentThread().equals(panel.getThreadQueue().getThread()))
  58                         highlight(s);
  59                 else {
  60                         ThreadUtils.asyncExec(AWTThread.getThreadAccess(), new Runnable() {
  61                                 @Override
  62                                 public void run() {
  63                                         highlight(s);
  64                                         //System.out.println(this.getClass().getName() + " highlight ");
  65                                         //panel.Render();
  66                                         panel.refresh();
  67                                 }
  68                         });
  69                 }
  70
  71         }
  72
  73         protected void hilight(INode node, HighlightEventType type) {
  74                 if (node instanceof NodeHighlighter) {
  75                         ((NodeHighlighter)node).highlight(type);
  76                         return;
  77                 }
  78                 if (type == HighlightEventType.Selection) {
  79                         setSelectedColor(node);
  80                 } else if (type == HighlightEventType.ClearSelection) {
  81                         setDefaultColor(node);
  82                 }
  83         }
  84
  85         protected void hilight(vtkActor actor, HighlightEventType type) {
  86                 if (type == HighlightEventType.Selection) {
  87                         setColor(actor,false,new double[]{1,0,0});
  88                         setColor(actor,true,new double[]{1,0,1});
  89                 } else if (type == HighlightEventType.ClearSelection) {
  90                         setColor(actor,false,new double[]{1,1,0});
  91                         setColor(actor,true,new double[]{0,0,0});
  92                 }
  93         }
  94
  95         protected void highlight(ISelection s) {
  96                 highlight(s, HighlightEventType.Selection, HighlightEventType.ClearSelection);
  97         }
  98
  99         protected void highlight(ISelection s, HighlightEventType apply, HighlightEventType clear) {
 100
 101                 boolean changed = false;
 102                 if (type == HighlightObjectType.Node) {
 103                         Collection<IG3DNode> currentSelectedNodes = AdaptationUtils.adaptToCollection(s,IG3DNode.class);//getSelectedNodes(currentSelectedActors);
 104                         if (currentSelectedNodes.size() == 0) {
 105                                 Collection<vtkProp> currentSelectedActors = AdaptationUtils.adaptToCollection(s, vtkProp.class);
 106                                 currentSelectedNodes = getSelectedNodes(currentSelectedActors);
 107                         }
 108                         for (IG3DNode node : selectedNodes) {
 109                                 if (!currentSelectedNodes.contains(node)) {
 110                                         hilight((INode)node, clear);
 111                                         changed = true;
 112                                 }
 113                         }
 114                         for (IG3DNode node : currentSelectedNodes) {
 115                                 if (!selectedNodes.contains(node)) {
 116                                         hilight((INode)node, apply);
 117                                         changed = true;
 118                                 }
 119                         }
 120                         selectedNodes.clear();
 121                         selectedNodes.addAll(currentSelectedNodes);
 122                         //selectedNodes = currentSelectedNodes;
 123
 124                 } else {
 125
 126                         Collection<vtkActor> currentSelectedActors = AdaptationUtils.adaptToCollection(s, vtkActor.class);
 127
 128                         for (vtkActor act : selectedActors) {
 129                                 if (!currentSelectedActors.contains(act)) {
 130                                         hilight(act,clear);
 131                                         changed = true;
 132                                 }
 133                         }
 134                         for (vtkActor act : currentSelectedActors) {
 135                                 if (!selectedActors.contains(act)) {
 136                                         hilight(act,apply);
 137                                         changed = true;
 138                                 }
 139                         }
 140                         selectedActors.clear();
 141                         selectedActors.addAll(currentSelectedActors);
 142                 }
 143                 if (changed) {
 144                         panel.refresh();
 145                 }
 146         }
 147
 148         protected List<IG3DNode> getSelectedNodes(Collection<vtkProp> selectedActors) {
 149                 List<IG3DNode> currentSelectedNodes = new ArrayList<IG3DNode>();
 150
 151                 for (vtkProp a : selectedActors) {
 152                         INode node = nodeMap.getNode((vtkProp)a);
 153                         if (node == null || !(node instanceof IG3DNode))
 154                                 continue;
 155                         if (!currentSelectedNodes.contains(node))
 156                                 currentSelectedNodes.add((IG3DNode)node);
 157                 }
 158                 return currentSelectedNodes;
 159         }
 160
 161         protected void setDefaultColor(INode node) {
 162                 double color[] = new double[]{1,1,0};
 163                 setColor(node, false, color);
 164         }
 165
 166         protected void setSelectedColor(INode node) {
 167                 double color[] = new double[]{1,0,0};
 168                 setColor(node, false, color);
 169         }
 170
 171         public void setColor(INode node, boolean edge, double color[]) {
 172                 for (vtkProp prop : nodeMap.getRenderObjects(node)) {
 173                         if (prop instanceof vtkActor) {
 174                                 vtkActor act = (vtkActor)prop;
 175                                 setColor(act, edge, color);
 176                         }
 177                 }
 178         }
 179
 180         protected void setColor(vtkActor act, boolean edge, double color[]) {
 181
 182                 vtkMapper mapper = act.GetMapper();
 183                 vtkAlgorithmOutput out = mapper.GetInputConnection(0, 0);
 184                 vtkAlgorithm producer = out.GetProducer();
 185                 boolean isEdge = (producer instanceof vtkFeatureEdges);
 186                 producer.Delete();
 187                 if (isEdge == edge) {
 188                         vtkProperty property = act.GetProperty();
 189                         property.SetColor(color);
 190                         property.Delete();
 191                 }
 192                 out.Delete();
 193                 mapper.Delete();
 194         }
 195 }