X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-studio%2Ftrunk%2Fsrc%2Fgtkmm%2Fpreview.cpp;h=78f8749eed7294313dd7dfac0d444d27ca56d66a;hb=6784db1651239a30b80f9b798663a55c1450242f;hp=7c9e95e682bcfac8041742fc2c64343d12887adf;hpb=40e340bcdda689cca6f5ec7f67bdec8c476a25f9;p=synfig.git

diff --git a/synfig-studio/trunk/src/gtkmm/preview.cpp b/synfig-studio/trunk/src/gtkmm/preview.cpp
index 7c9e95e..78f8749 100644
--- 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()