Large commit for implementation of load&save of MixingGroups

MixingGroup.h

@@ -4,6 +4,7 @@
 #include <map>
 
 #include "View.h"
+#include "SourceList.h"
 
 class LineLoop;
 class Symbol;
@@ -15,29 +16,34 @@ public:
     MixingGroup (SourceList sources);
     ~MixingGroup ();
 
+    // actions for update
     typedef enum {
         ACTION_NONE = 0,
         ACTION_GRAB_ONE = 1,
         ACTION_GRAB_ALL = 2,
         ACTION_ROTATE_ALL = 3
     } Action;
-
-    // actions for update
     inline void setAction (Action a) { update_action_ = a; }
     inline Action action () { return update_action_; }
     inline void follow (Source *s) { updated_source_ = s; }
 
-    // get node to draw
+    // node to draw
     inline Group *group () { return root_; }
 
+    // accept all kind of visitors
+    virtual void accept (Visitor& v);
+
     // to update in Mixing View
     void update (float dt);
     inline  bool active () const { return active_; }
     void setActive (bool on);
 
-    // individual change of a source in the group
+    // Source list manipulation
+    SourceList::iterator begin ();
+    SourceList::iterator end ();
+    uint size ();
+    bool contains (Source *s);
     void detach (Source *s);
-    void move   (Source *s);
 
 private:
 
@@ -46,10 +52,11 @@ private:
     LineLoop *lines_;
     Symbol *center_;
     void createLineStrip();
+    void move (Source *s);
 
     // properties linked to sources
-    glm::vec2 center_pos_;
-    std::vector<Source *> sources_;
+    glm::vec2  center_pos_;
+    SourceList sources_;
     std::map< Source *, uint> index_points_;
 
     // status and actions