comparison data/model/Model.h @ 297:c022976d18e8

* Merge from sv-match-alignment branch (excluding alignment-specific document).
  - add aggregate wave model (not yet complete enough to be added as a true
    model in a layer, but there's potential)
  - add play solo mode
  - add alignment model -- unused in plain SV
  - fix two plugin leaks
  - add m3u playlist support (opens all files at once, potentially hazardous)
  - fix retrieval of pre-encoded URLs
  - add ability to resample audio files on import, so as to match rates with
    other files previously loaded; add preference for same
  - add preliminary support in transform code for range and rate of transform
    input
  - reorganise preferences dialog, move dark-background option to preferences,
    add option for temporary directory location

      * Return the frame rate in frames per second.
      */
     virtual size_t getSampleRate() const = 0;
 
     /**
+     * Return the frame rate of the underlying material, if the model
+     * itself has already been resampled.
+     */
+    virtual size_t getNativeRate() const { return getSampleRate(); }
+
+    /**
      * Return a copy of this model.
      *
      * If the model is not editable, this may be effectively a shallow
      * copy.  If the model is editable, however, this operation must
      * properly copy all of the model's editable data.

      */
     virtual const ZoomConstraint *getZoomConstraint() const {
         return 0;
     }
 
+    /**
+     * If this model was derived from another, return the model it was
+     * derived from.  The assumption is that the source model's
+     * alignment will also apply to this model, unless some other
+     * property indicates otherwise.
+     */
+    virtual Model *getSourceModel() const {
+        return m_sourceModel;
+    }
+
+    /**
+     * Set the source model for this model.
+     */
+     //!!! No way to handle source model deletion &c yet
+    virtual void setSourceModel(Model *model) {
+        m_sourceModel = model;
+    }
+
     virtual void toXml(QTextStream &stream,
                        QString indent = "",
                        QString extraAttributes = "") const;
 
     virtual QString toXmlString(QString indent = "",

      * refreshing the actual view.
      */
     void completionChanged();
 
 protected:
-    Model() { }
+    Model() : m_sourceModel(0) { }
 
     // Not provided.
     Model(const Model &);
     Model &operator=(const Model &); 
+
+    Model *m_sourceModel;
 };
 
 #endif