comparison data/model/Model.h @ 1731:601851995f4b by-id

Introduce Model to ById

 #define SV_MODEL_H
 
 #include <vector>
 #include <QObject>
 
+#include "base/ById.h"
 #include "base/XmlExportable.h"
 #include "base/Playable.h"
 #include "base/BaseTypes.h"
 #include "base/DataExportOptions.h"
 
 class ZoomConstraint;
 class AlignmentModel;
 
-typedef int ModelId;
-
 /** 
  * Model is the base class for all data models that represent any sort
  * of data on a time scale based on an audio frame rate.
  */
-
 class Model : public QObject,
+              public WithId<Model>,
               public XmlExportable,
               public Playable
 {
     Q_OBJECT
 

      * Return true if this is a sparse model.
      */
     virtual bool isSparse() const { return false; }
 
     /**
-     * Return an id for this model. The id is guaranteed to be a
-     * unique identifier for this model among all models that may ever
-     * exist within this single run of the application.
-     */
-    ModelId getId() const { return m_id; }
-    
-    /**
      * Mark the model as abandoning. This means that the application
      * no longer needs it, so it can stop doing any background
      * calculations it may be involved in. Note that as far as the
      * model API is concerned, this does nothing more than tell the
      * model to return true from isAbandoning().  The actual response

      */
     void aboutToBeDeleted();
 
 protected:
     Model() :
-        m_id(getNextId()),
         m_sourceModel(0), 
         m_alignment(0), 
         m_abandoning(false), 
         m_aboutToDelete(false),
         m_extendTo(0) { }
 
     // Not provided.
     Model(const Model &);
     Model &operator=(const Model &); 
 
-    const ModelId m_id;
     Model *m_sourceModel;
     AlignmentModel *m_alignment;
     QString m_typeUri;
     bool m_abandoning;
     bool m_aboutToDelete;
     sv_frame_t m_extendTo;
-    
-    int getNextId();
 };
 
+typedef Model::Id ModelId;
+typedef StaticById<Model, ModelId> ModelById;
+
 #endif