Tidying.

[synfig.git] / synfig-studio / trunk / src / gtkmm / preview.cpp

diff --git a/synfig-studio/trunk/src/gtkmm/preview.cpp b/synfig-studio/trunk/src/gtkmm/preview.cpp
index 7c9e95e..78f8749 100644 (file)
--- a/synfig-studio/trunk/src/gtkmm/preview.cpp
+++ b/synfig-studio/trunk/src/gtkmm/preview.cpp
@@ -858,10 +858,15 @@ void studio::Widget_Preview::repreview()
 
 void studio::Widget_Preview::stoprender()
 {
+       // don't crash if the render has already been stopped
+       if (!preview->renderer)
+               return;
+
        if(preview)
-       {
-               preview->renderer.detach();
-       }
+               if (preview->renderer->updating)
+                       preview->renderer->stop();
+               else
+                       preview->renderer.detach();
 }
 
 void studio::Widget_Preview::eraseall()