Clean up sequence widget 'clone' functions.

Timeline/Annotation_Point.H

@@ -64,6 +64,7 @@ public:
 
     /* for loggable */
     LOG_CREATE_FUNC( Annotation_Point );
+    SEQUENCE_WIDGET_CLONE_FUNC( Annotation_Point );
 
     Annotation_Point ( Sequence *sequence, nframes_t when, const char *name )
         {
@@ -82,11 +83,6 @@ public:
             _label = strdup( rhs._label );
         }
 
-    Sequence_Widget *clone ( const Sequence_Widget *r )
-        {
-            return new Annotation_Point( *(Annotation_Point*)r );
-        }
-
     ~Annotation_Point ( )
         {
             log_destroy();

Timeline/Annotation_Region.H

@@ -53,6 +53,7 @@ public:
 
     /* for loggable */
     LOG_CREATE_FUNC( Annotation_Region );
+    SEQUENCE_WIDGET_CLONE_FUNC( Annotation_Region );
 
     Annotation_Region ( Sequence *track, nframes_t when, const char *name );
     Annotation_Region ( const Annotation_Region &rhs );
@@ -62,9 +63,4 @@ public:
     void draw ( void );
     int handle ( int m );
 
-    Sequence_Widget *clone ( const Sequence_Widget *r )
-        {
-            return new Annotation_Region( *(Annotation_Region*)r );
-        }
-
 };

Timeline/Audio_Region.C

@@ -140,12 +140,6 @@ Audio_Region::Audio_Region ( const Audio_Region & rhs )
     log_create();
 }
 
-Sequence_Widget *
-Audio_Region::clone ( const Sequence_Widget *r )
-{
-    return new Audio_Region( *(Audio_Region*)r );
-}
-
 /*  */
 Audio_Region::Audio_Region ( Audio_File *c )
 {
@@ -383,7 +377,7 @@ Audio_Region::handle ( int m )
                 int d = (ox + X) - x();
                 long td = timeline->x_to_ts( d );
 
-                if ( td > 0 && os < td )
+                if ( td > 0 && os < (nframes_t)td )
                     _r->offset = 0;
                 else
                     _r->offset = os - td;

Timeline/Audio_Region.H

@@ -127,7 +127,7 @@ public:
 
     LOG_CREATE_FUNC( Audio_Region );
 
-    Sequence_Widget *clone ( const Sequence_Widget *r );
+    SEQUENCE_WIDGET_CLONE_FUNC( Audio_Region );
 
     ~Audio_Region ( )
         {

Timeline/Control_Point.H

@@ -41,12 +41,7 @@ public:
 
     /* for loggable */
     LOG_CREATE_FUNC( Control_Point );
-
-
-    Sequence_Widget *clone ( const Sequence_Widget *r )
-        {
-            return new Control_Point( *(Control_Point*)r );
-        }
+    SEQUENCE_WIDGET_CLONE_FUNC( Control_Point );
 
     Control_Point ( Sequence *t, nframes_t when, float y );
     Control_Point ( const Control_Point &rhs );

Timeline/Sequence_Widget.H

@@ -128,7 +128,14 @@ public:
 /*             *this = rhs; */
 /*         } */
 
-    virtual Sequence_Widget *clone ( const Sequence_Widget *r ) = 0;
+#define SEQUENCE_WIDGET_CLONE_FUNC(class)                               \
+    virtual Sequence_Widget *clone ( void ) const                       \
+        {                                                               \
+            return new class ( *this );                                 \
+        }                                                               \
+                                                                        \
+//    virtual Sequence_Widget *clone ( const Sequence_Widget *r ) = 0;
+    virtual Sequence_Widget *clone ( void ) const = 0;
 
     bool selected ( void ) const
         {

Timeline/Tempo_Point.H

@@ -46,9 +46,10 @@ protected:
 
 public:
 
-    static bool edit ( float *tempo );
-
     LOG_CREATE_FUNC( Tempo_Point );
+    SEQUENCE_WIDGET_CLONE_FUNC( Tempo_Point );
+
+    static bool edit ( float *tempo );
 
     Tempo_Point ( nframes_t when, float bpm );
 
@@ -60,11 +61,6 @@ public:
             _tempo = rhs._tempo;
         }
 
-    Sequence_Widget *clone ( const Sequence_Widget *r )
-        {
-            return new Tempo_Point( *(Tempo_Point*)r );
-        }
-
 
     float tempo ( void ) const
         { return _tempo; }

Timeline/Time_Point.H

@@ -69,6 +69,7 @@ protected:
 public:
 
     LOG_CREATE_FUNC( Time_Point );
+    SEQUENCE_WIDGET_CLONE_FUNC( Time_Point );
 
     Time_Point ( nframes_t when, int bpb, int note );
     Time_Point ( const Time_Point &rhs );
@@ -78,10 +79,6 @@ public:
             log_destroy();
         }
 
-    Sequence_Widget *clone ( const Sequence_Widget *r )
-        {
-            return new Time_Point( *(Time_Point*)r );
-        }
 
     void time ( int bpb, int note ) { _time.beats_per_bar = bpb; _time.beat_type = note; }
     time_sig time ( void ) const { return _time; }