comparison layer/TimeValueLayer.h @ 21:3a506d25d95a

* Add command history class, and basic undo/redo menus.  No actual commands
  to undo/redo yet.  Selecting the placeholders sometimes seems to cause
  a crash, so this looks a little uncertain so far.

* Add Rename Layer

* Remove models from playback when their layers are removed (and ref counts
  hit zero)

* Don't hang around waiting so much when there's work to be done in the audio
  buffer fill thread

* Put more sensible names on layers generated from transforms

* Add basic editing to time-value layer like existing editing in time-instants
  layer, and make both of them snap to the appropriate resolution during drag

 
     virtual int getNearestFeatureFrame(int frame, 
 				       size_t &resolution,
 				       bool snapRight = true) const;
 
+    virtual void drawStart(QMouseEvent *);
+    virtual void drawDrag(QMouseEvent *);
+    virtual void drawEnd(QMouseEvent *);
+
+    virtual void editStart(QMouseEvent *);
+    virtual void editDrag(QMouseEvent *);
+    virtual void editEnd(QMouseEvent *);
+
     virtual const Model *getModel() const { return m_model; }
     void setModel(SparseTimeValueModel *model);
 
     virtual PropertyList getProperties() const;
     virtual PropertyType getPropertyType(const PropertyName &) const;

 				QString extraAttributes = "") const;
 
     void setProperties(const QXmlAttributes &attributes);
 
 protected:
+    int getYForValue(float value) const;
+    float getValueForY(int y) const;
+
     SparseTimeValueModel::PointList getLocalPoints(int) const;
 
     SparseTimeValueModel *m_model;
+    bool m_editing;
+    SparseTimeValueModel::Point m_editingPoint;
     QColor m_colour;
     PlotStyle m_plotStyle;
 };
 
 #endif