Improve single-threaded operation. It's now safe(r?) to close a canvas while it...

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

diff --git a/synfig-studio/trunk/src/gtkmm/workarea.cpp b/synfig-studio/trunk/src/gtkmm/workarea.cpp
index 54216f3..abdf30c 100644 (file)
--- a/synfig-studio/trunk/src/gtkmm/workarea.cpp
+++ b/synfig-studio/trunk/src/gtkmm/workarea.cpp
@@ -810,6 +810,19 @@ WorkArea::~WorkArea()
                render_idle_func_id=0;
 }
 
+bool
+WorkArea::get_updating()const
+{
+       return App::single_threaded && async_renderer && async_renderer->updating == true;
+}
+
+void
+WorkArea::stop_updating(bool cancel)
+{
+       async_renderer->stop();
+       if (cancel) canceled_=true;
+}
+
 void
 WorkArea::save_meta_data()
 {
@@ -2174,9 +2187,9 @@ public:
 bool
 studio::WorkArea::async_update_preview()
 {
-       if (single_threaded() && async_renderer && async_renderer->updating == true)
+       if (get_updating())
        {
-               async_renderer->stop();
+               stop_updating();
                return false;
        }