comparison layer/Layer.h @ 359:020c485aa7e0

* More work on aligning copy/paste between layers.  It's a surprisingly
  complicated business.

 
     virtual void moveSelection(Selection, size_t /* newStartFrame */) { }
     virtual void resizeSelection(Selection, Selection /* newSize */) { }
     virtual void deleteSelection(Selection) { }
 
-    virtual void copy(Selection, Clipboard & /* to */) { }
+    virtual void copy(View *, Selection, Clipboard & /* to */) { }
 
     /**
      * Paste from the given clipboard onto the layer at the given
      * frame offset.  If interactive is true, the layer may ask the
      * user about paste options through a dialog if desired, and may
      * return false if the user cancelled the paste operation.  This
      * function should return true if a paste actually occurred.
      */
-    virtual bool paste(const Clipboard & /* from */,
+    virtual bool paste(View *,
+                       const Clipboard & /* from */,
                        int /* frameOffset */,
                        bool /* interactive */) { return false; }
 
     // Text mode:
     //

     void verticalZoomChanged();
 
 protected:
     void connectSignals(const Model *);
 
+    virtual size_t alignToReference(View *v, size_t frame) const;
+    virtual size_t alignFromReference(View *v, size_t frame) const;
+
     struct MeasureRect {
 
         mutable QRect pixrect;
         bool haveFrames;
         long startFrame; // only valid if haveFrames