#ifndef MSP_GL_VIEW_H_
#define MSP_GL_VIEW_H_
-#include <sigc++/trackable.h>
#include "framebuffer.h"
namespace Msp {
/**
Manages the presentation of rendering results on the screen.
*/
-class View: public sigc::trackable
+class View
{
protected:
Framebuffer ⌖
#ifndef MSP_GL_WINDOWVIEW_H_
#define MSP_GL_WINDOWVIEW_H_
+#include <sigc++/trackable.h>
#include <msp/graphics/glcontext.h>
#include <msp/graphics/window.h>
#include "view.h"
namespace Msp {
namespace GL {
-class WindowView: public View
+class WindowView: public View, public sigc::trackable
{
private:
Graphics::Window &window;