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.vtkPanel;
  36 import vtk.vtkProp;
  37 import vtk.vtkProperty;
  38
  39 public class SelectionHighlighter<E extends IG3DNode> implements ISelectionChangedListener{
  40
  41
  42
  43         vtkPanel panel;
  44         VTKNodeMap<E> nodeMap;
  45
  46         List<IG3DNode> selectedNodes = new ArrayList<IG3DNode>();
  47         List<vtkActor> selectedActors = new ArrayList<vtkActor>();
  48
  49         HighlightObjectType type = HighlightObjectType.Node;
  50
  51         public SelectionHighlighter(vtkPanel panel, VTKNodeMap<E> nodeMap) {
  52                 this.panel = panel;
  53                 this.nodeMap = nodeMap;
  54         }
  55
  56         @Override
  57         public void selectionChanged(SelectionChangedEvent event) {
  58                 final ISelection s = event.getSelection();
  59
  60                 if (Thread.currentThread().equals(AWTThread.getThreadAccess().getThread()))
  61                         highlight(s);
  62                 else {
  63                         ThreadUtils.asyncExec(AWTThread.getThreadAccess(), new Runnable() {
  64                                 @Override
  65                                 public void run() {
  66                                         highlight(s);
  67                                         //System.out.println(this.getClass().getName() + " highlight ");
  68                                         panel.Render();
  69                                         //panel.repaint();
  70                                 }
  71                         });
  72                 }
  73
  74         }
  75
  76         protected void hilight(E node, HighlightEventType type) {
  77                 if (node instanceof NodeHighlighter) {
  78                         ((NodeHighlighter)node).highlight(type);
  79                         return;
  80                 }
  81                 if (type == HighlightEventType.Selection) {
  82                         setSelectedColor(node);
  83                 } else if (type == HighlightEventType.ClearSelection) {
  84                         setDefaultColor(node);
  85                 }
  86         }
  87
  88         protected void hilight(vtkActor actor, HighlightEventType type) {
  89                 if (type == HighlightEventType.Selection) {
  90                         setColor(actor,false,new double[]{1,0,0});
  91                         setColor(actor,true,new double[]{1,0,1});
  92                 } else if (type == HighlightEventType.ClearSelection) {
  93                         setColor(actor,false,new double[]{1,1,0});
  94                         setColor(actor,true,new double[]{0,0,0});
  95                 }
  96         }
  97
  98         protected void highlight(ISelection s) {
  99                 highlight(s, HighlightEventType.Selection, HighlightEventType.ClearSelection);
 100         }
 101
 102         protected void highlight(ISelection s, HighlightEventType apply, HighlightEventType clear) {
 103
 104                 boolean changed = false;
 105                 if (type == HighlightObjectType.Node) {
 106                         Collection<IG3DNode> currentSelectedNodes = AdaptationUtils.adaptToCollection(s,IG3DNode.class);//getSelectedNodes(currentSelectedActors);
 107                         if (currentSelectedNodes.size() == 0) {
 108                                 Collection<vtkProp> currentSelectedActors = AdaptationUtils.adaptToCollection(s, vtkProp.class);
 109                                 currentSelectedNodes = getSelectedNodes(currentSelectedActors);
 110                         }
 111                         for (IG3DNode node : selectedNodes) {
 112                                 if (!currentSelectedNodes.contains(node)) {
 113                                         hilight((E)node, clear);
 114                                         changed = true;
 115                                 }
 116                         }
 117                         for (IG3DNode node : currentSelectedNodes) {
 118                                 if (!selectedNodes.contains(node)) {
 119                                         hilight((E)node, apply);
 120                                         changed = true;
 121                                 }
 122                         }
 123                         selectedNodes.clear();
 124                         selectedNodes.addAll(currentSelectedNodes);
 125                         //selectedNodes = currentSelectedNodes;
 126
 127                 } else {
 128
 129                         Collection<vtkActor> currentSelectedActors = AdaptationUtils.adaptToCollection(s, vtkActor.class);
 130
 131                         for (vtkActor act : selectedActors) {
 132                                 if (!currentSelectedActors.contains(act)) {
 133                                         hilight(act,clear);
 134                                         changed = true;
 135                                 }
 136                         }
 137                         for (vtkActor act : currentSelectedActors) {
 138                                 if (!selectedActors.contains(act)) {
 139                                         hilight(act,apply);
 140                                         changed = true;
 141                                 }
 142                         }
 143                         selectedActors.clear();
 144                         selectedActors.addAll(currentSelectedActors);
 145                 }
 146                 if (changed) {
 147                         panel.repaint();
 148                 }
 149         }
 150
 151         protected List<IG3DNode> getSelectedNodes(Collection<vtkProp> selectedActors) {
 152                 List<IG3DNode> currentSelectedNodes = new ArrayList<IG3DNode>();
 153
 154                 for (vtkProp a : selectedActors) {
 155                         INode node = nodeMap.getNode((vtkProp)a);
 156                         if (node == null || !(node instanceof IG3DNode))
 157                                 continue;
 158                         if (!currentSelectedNodes.contains(node))
 159                                 currentSelectedNodes.add((IG3DNode)node);
 160                 }
 161                 return currentSelectedNodes;
 162         }
 163
 164         protected void setDefaultColor(E node) {
 165                 double color[] = new double[]{1,1,0};
 166                 setColor(node, false, color);
 167         }
 168
 169         protected void setSelectedColor(E node) {
 170                 double color[] = new double[]{1,0,0};
 171                 setColor(node, false, color);
 172         }
 173
 174
 175         protected void setColor(E node, boolean edge, double color[]) {
 176                 for (vtkProp prop : nodeMap.getRenderObjects(node)) {
 177                         if (prop instanceof vtkActor) {
 178                                 vtkActor act = (vtkActor)prop;
 179                                 setColor(act, edge, color);
 180                         }
 181                 }
 182         }
 183
 184         protected void setColor(vtkActor act, boolean edge, double color[]) {
 185
 186                 vtkMapper mapper = act.GetMapper();
 187                 vtkAlgorithmOutput out = mapper.GetInputConnection(0, 0);
 188                 vtkAlgorithm producer = out.GetProducer();
 189                 boolean isEdge = (producer instanceof vtkFeatureEdges);
 190                 producer.Delete();
 191                 if (isEdge == edge) {
 192                         vtkProperty property = act.GetProperty();
 193                         property.SetColor(color);
 194                         property.Delete();
 195                 }
 196                 out.Delete();
 197                 mapper.Delete();
 198         }
 199 }