org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/handlers/ParallelPerspectiveHandler.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.handlers;
  13
  14 import java.util.HashMap;
  15 import java.util.Map;
  16
  17 import javax.vecmath.Vector3d;
  18
  19 import org.eclipse.core.commands.AbstractHandler;
  20 import org.eclipse.core.commands.Command;
  21 import org.eclipse.core.commands.ExecutionEvent;
  22 import org.eclipse.core.commands.ExecutionException;
  23 import org.eclipse.ui.IWorkbenchPart;
  24 import org.eclipse.ui.handlers.HandlerUtil;
  25 import org.simantics.g3d.vtk.common.VtkView;
  26 import org.simantics.utils.threads.AWTThread;
  27 import org.simantics.utils.threads.ThreadUtils;
  28
  29 public class ParallelPerspectiveHandler extends AbstractHandler {
  30
  31
  32         private Map<VtkView,Vector3d> cameraPos = new HashMap<VtkView, Vector3d>();
  33
  34         @Override
  35         public Object execute(ExecutionEvent event) throws ExecutionException {
  36                 Command command = event.getCommand();
  37                 boolean oldValue = HandlerUtil.toggleCommandState(command);
  38                 final boolean activate = !oldValue;
  39
  40                 final IWorkbenchPart ap = HandlerUtil.getActiveEditor(event);
  41                 final VtkView panel = (VtkView)ap.getAdapter(VtkView.class);
  42
  43                 ThreadUtils.asyncExec(AWTThread.getThreadAccess(), new Runnable() {
  44
  45                         @Override
  46                         public void run() {
  47                                 if (activate){
  48                                         Vector3d focal = new Vector3d(panel.getRenderer().GetActiveCamera().GetFocalPoint());
  49                                         Vector3d pos = new Vector3d(panel.getRenderer().GetActiveCamera().GetPosition());
  50                                         cameraPos.put(panel, pos);
  51                                         Vector3d dir = new Vector3d(pos);
  52                                         dir.sub(focal);
  53                                         dir.normalize();
  54                                         dir.scale(100);
  55                                         dir.add(focal);
  56                                         panel.getRenderer().GetActiveCamera().SetPosition(dir.x, dir.y, dir.z);
  57
  58
  59                                         panel.getRenderer().GetActiveCamera().SetParallelProjection(1);
  60                                         panel.getRenderer().ResetCameraClippingRange();
  61                                 } else {
  62                                         panel.getRenderer().GetActiveCamera().SetParallelProjection(0);
  63                                         Vector3d pos = cameraPos.get(panel);
  64                                         if (pos != null) {
  65                                                 panel.getRenderer().GetActiveCamera().SetPosition(pos.x, pos.y, pos.z);
  66                                         }
  67                                         panel.getRenderer().ResetCameraClippingRange();
  68
  69                                 }
  70                                 //                              panel.UpdateLight();
  71                                 panel.refresh();
  72
  73                         }
  74                 });
  75
  76                 return null;
  77
  78         }
  79
  80
  81
  82 }