X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-studio%2Ftrunk%2Fsrc%2Fgtkmm%2Fworkarea.cpp;h=54216f3a38dff4ded1ccb82a41ee1d5c0053c1ec;hb=e10333c5709c495f1cb1f10d06aab3012b0dbc17;hp=e7c800d8f858e0c5c7015a752440d0a1211c226c;hpb=37600b4b217caa5e316984ec0b035c5e8f9698af;p=synfig.git

diff --git a/synfig-studio/trunk/src/gtkmm/workarea.cpp b/synfig-studio/trunk/src/gtkmm/workarea.cpp
index e7c800d..54216f3 100644
--- a/synfig-studio/trunk/src/gtkmm/workarea.cpp
+++ b/synfig-studio/trunk/src/gtkmm/workarea.cpp
@@ -2174,6 +2174,12 @@ public:
 bool
 studio::WorkArea::async_update_preview()
 {
+	if (single_threaded() && async_renderer && async_renderer->updating == true)
+	{
+		async_renderer->stop();
+		return false;
+	}
+
 	async_renderer=0;
 
 	queued=false;