org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/handlers/ParallelPerspectiveHandler.java

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