From d6a814242bf12a2dd247a4a817745a76dd079219 Mon Sep 17 00:00:00 2001
From: Reino Ruusu <reino.ruusu@semantum.fi>
Date: Mon, 25 May 2020 13:06:52 +0300
Subject: [PATCH] Eliminated NullPointerException in vtkGizmo.deattachActors().

gitlab #130

Change-Id: I6e4f4e526af083a99d87197fd2c9b90cf119b593
---
 .../src/org/simantics/g3d/vtk/gizmo/vtkGizmo.java           | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/gizmo/vtkGizmo.java b/org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/gizmo/vtkGizmo.java
index 47ee62b4..2c70a68e 100644
--- a/org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/gizmo/vtkGizmo.java
+++ b/org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/gizmo/vtkGizmo.java
@@ -74,8 +74,10 @@ public abstract class vtkGizmo implements Gizmo<vtkProp, VtkView> {
 	protected void deattachActors() {
 		view.lock();
 		vtkRenderer ren1 = view.getRenderer();
-		for (vtkProp p : gizmo) {
-			ren1.RemoveActor(p);
+		if (ren1 != null) {
+			for (vtkProp p : gizmo) {
+				ren1.RemoveActor(p);
+			}
 		}
 		view.unlock();
 	}
-- 
2.45.2