X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fview.h;h=81d7e051de0ec22d4757d61fcb31160cd269cd3c;hp=0dd638959693f6c052494892a09a723b273a95a5;hb=d886d08441f45448ba98166f7dd15d35baf24905;hpb=661073576254a203fa497fb4c2f550dc269cd5de

diff --git a/source/view.h b/source/view.h
index 0dd63895..81d7e051 100644
--- a/source/view.h
+++ b/source/view.h
@@ -2,6 +2,7 @@
 #define MSP_GL_VIEW_H_
 
 #include <list>
+#include <sigc++/trackable.h>
 #include <msp/graphics/glcontext.h>
 #include <msp/graphics/window.h>
 
@@ -15,7 +16,7 @@ class Renderable;
 /**
 Manages the presentation of rendering results on the screen.
 */
-class View
+class View: public sigc::trackable
 {
 private:
 	Graphics::Window &window;