Initial integration of Mixer, Views and Source classes.

First tests with user interface and Mixing View

Mixer.h

@@ -0,0 +1,59 @@
+#ifndef MIXER_H
+#define MIXER_H
+
+#include <vector>
+
+//  GStreamer
+#include <gst/gst.h>
+
+
+#include "View.h"
+#include "Source.h"
+
+class Mixer
+{
+    // Private Constructor
+    Mixer();
+    Mixer(Rendering const& copy);            // Not Implemented
+    Mixer& operator=(Rendering const& copy); // Not Implemented
+
+public:
+
+    static Mixer& manager()
+    {
+        // The only instance
+        static Mixer _instance;
+        return _instance;
+    }
+
+    // update all sources and all views
+    void update();
+
+    // draw render view and current view
+    void draw();
+
+    // manangement of sources
+    void createSourceMedia(std::string uri);
+
+    void setCurrentSource(std::string namesource);
+    void setcurrentSource(Source *s);
+    Source *currentSource();
+
+    // management of view
+    typedef enum {RENDERING = 0, MIXING=1, GEOMETRY=2, LAYER=3, INVALID=4 } viewMode;
+    View *getView(viewMode m);
+    void setCurrentView(viewMode m);
+    View *currentView();
+
+    inline FrameBuffer *frame() const { return render_.frameBuffer(); }
+
+protected:
+    RenderView render_;
+    MixingView mixing_;
+    View *current_view_;
+    gint64 update_time_;
+
+    SourceList::iterator current_source_;
+};
+
+#endif // MIXER_H