add begin/end undo/redo signals so that playlist can freeze/thaw itself around potentially NxM region property changes; clean up debug output; don't connect streamview to Playlist::ContentsChanged because there appears to be no need for it - we catch add/remove region, and region property changes are handled by RegionView

git-svn-id: svn://localhost/ardour2/branches/3.0@6702 d708f5d6-7413-0410-9779-e7cbd77b26cf

gtk2_ardour/audio_streamview.cc

@@ -254,19 +254,13 @@ AudioStreamView::playlist_layered (boost::weak_ptr<Diskstream> wds)
 		return;
 	}
 
-	cerr << "AS, call SV::modified @ " << get_microseconds() << endl;
-
 	StreamView::playlist_layered (wds);
 
-	cerr << "AS, done with SV::modified @ " << get_microseconds() << endl;
-
 	/* make sure xfades are on top and all the regionviews are stacked correctly. */
 
-	cerr << "AS, raise xfades @ " << get_microseconds() << endl;
 	for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 		i->second->get_canvas_group()->raise_to_top();
 	}
-	cerr << "AS, done with xfades @ " << get_microseconds() << endl;
 }
 
 void

gtk2_ardour/streamview.cc

@@ -336,7 +336,7 @@ StreamView::playlist_switched (boost::weak_ptr<Diskstream> wds)
 	ds->playlist()->LayeringChanged.connect (playlist_connections, boost::bind (&StreamView::playlist_layered, this, boost::weak_ptr<Diskstream>(ds)), gui_context());
 	ds->playlist()->RegionAdded.connect (playlist_connections, ui_bind (&StreamView::add_region_view, this, _1), gui_context());
 	ds->playlist()->RegionRemoved.connect (playlist_connections, ui_bind (&StreamView::remove_region_view, this, _1), gui_context());
-	ds->playlist()->ContentsChanged.connect (playlist_connections, boost::bind (&StreamView::redisplay_diskstream, this), gui_context());
+	// ds->playlist()->ContentsChanged.connect (playlist_connections, boost::bind (&StreamView::redisplay_diskstream, this), gui_context());
 }
 
 void

libs/ardour/ardour/playlist.h

@@ -296,6 +296,8 @@ class Playlist : public SessionObject
 	int move_region_to_layer (layer_t, boost::shared_ptr<Region> r, int dir);
 	void relayer ();
 
+	void begin_undo ();
+	void end_undo ();
 	void unset_freeze_parent (Playlist*);
 	void unset_freeze_child (Playlist*);
 

libs/ardour/audioregion.cc

@@ -625,8 +625,6 @@ AudioRegion::_set_state (const XMLNode& node, int version, PropertyChange& what_
 			_envelope->set_max_xval (_length);
 			_envelope->truncate_end (_length);
 
-			cerr << _name << " envelope changd\n";
-		
 
 		} else if (child->name() == "FadeIn") {
 
@@ -648,7 +646,6 @@ AudioRegion::_set_state (const XMLNode& node, int version, PropertyChange& what_
 					set_fade_in_active (false);
 				}
 			}
-			cerr << _name << " fadein changd\n";
 
 		} else if (child->name() == "FadeOut") {
 
@@ -670,7 +667,6 @@ AudioRegion::_set_state (const XMLNode& node, int version, PropertyChange& what_
 					set_fade_out_active (false);
 				}
 			}
-			cerr << _name << " fadeout changd\n";
 
 		}
 	}

libs/ardour/playlist.cc

@@ -278,6 +278,9 @@ Playlist::init (bool hide)
 	freeze_length = 0;
 	_explicit_relayering = false;
 
+	_session.history().BeginUndoRedo.connect_same_thread (*this, boost::bind (&Playlist::begin_undo, this));
+	_session.history().EndUndoRedo.connect_same_thread (*this, boost::bind (&Playlist::end_undo, this));
+	
 	ContentsChanged.connect_same_thread (*this, boost::bind (&Playlist::mark_session_dirty, this));
 }
 
@@ -320,6 +323,18 @@ Playlist::set_name (const string& str)
  the lock (e.g. to read from the playlist).
  ***********************************************************************/
 
+void
+Playlist::begin_undo ()
+{
+	freeze ();
+}
+
+void
+Playlist::end_undo ()
+{
+	thaw ();
+}
+
 void
 Playlist::freeze ()
 {
@@ -357,9 +372,7 @@ Playlist::notify_contents_changed ()
 		pending_contents_change = true;
 	} else {
 		pending_contents_change = false;
-		cerr << _name << "send contents change @ " << get_microseconds() << endl;
 		ContentsChanged(); /* EMIT SIGNAL */
-		cerr << _name << "done with cc @ " << get_microseconds() << endl;
 	}
 }
 
@@ -370,9 +383,7 @@ Playlist::notify_layering_changed ()
 		pending_layering = true;
 	} else {
 		pending_layering = false;
-		cerr << _name << "send layering @ " << get_microseconds() << endl;
 		LayeringChanged(); /* EMIT SIGNAL */
-		cerr << _name << "done with layering @ " << get_microseconds() << endl;
 	}
 }
 
@@ -429,9 +440,7 @@ Playlist::notify_region_added (boost::shared_ptr<Region> r)
 		LengthChanged (); /* EMIT SIGNAL */
 		pending_contents_change = false;
 		RegionAdded (boost::weak_ptr<Region> (r)); /* EMIT SIGNAL */
-		cerr << _name << "send3 contents changed @ " << get_microseconds() << endl;
 		ContentsChanged (); /* EMIT SIGNAL */
-		cerr << _name << "done contents changed @ " << get_microseconds() << endl;
 	}
 }
 
@@ -444,9 +453,7 @@ Playlist::notify_length_changed ()
 		pending_length = false;
 		LengthChanged(); /* EMIT SIGNAL */
 		pending_contents_change = false;
-		cerr << _name << "send4 contents change @ " << get_microseconds() << endl;
 		ContentsChanged (); /* EMIT SIGNAL */
-		cerr << _name << "done contents change @ " << get_microseconds() << endl;
 	}
 }
 
@@ -491,12 +498,12 @@ Playlist::flush_notifications ()
 
 	for (s = pending_removes.begin(); s != pending_removes.end(); ++s) {
 		remove_dependents (*s);
-		cerr << _name << " sends RegionRemoved\n";
+		// cerr << _name << " sends RegionRemoved\n";
 		RegionRemoved (boost::weak_ptr<Region> (*s)); /* EMIT SIGNAL */
 	}
 
 	for (s = pending_adds.begin(); s != pending_adds.end(); ++s) {
-		cerr << _name << " sends RegionAdded\n";
+		// cerr << _name << " sends RegionAdded\n";
 		RegionAdded (boost::weak_ptr<Region> (*s)); /* EMIT SIGNAL */
 		dependent_checks_needed.insert (*s);
 	}
@@ -504,13 +511,13 @@ Playlist::flush_notifications ()
 	if (check_length) {
 		if (old_length != _get_maximum_extent()) {
 			pending_length = true;
-			cerr << _name << " length has changed\n";
+			// cerr << _name << " length has changed\n";
 		}
 	}
 
 	if (pending_length || (freeze_length != _get_maximum_extent())) {
 		pending_length = false;
-		cerr << _name << " sends LengthChanged\n";
+		// cerr << _name << " sends LengthChanged\n";
 		LengthChanged(); /* EMIT SIGNAL */
 	}
 
@@ -519,9 +526,9 @@ Playlist::flush_notifications ()
 			relayer ();
 		}
 		pending_contents_change = false;
-		cerr << _name << " sends 5 contents change @ " << get_microseconds() << endl;
+		// cerr << _name << " sends 5 contents change @ " << get_microseconds() << endl;
 		ContentsChanged (); /* EMIT SIGNAL */
-		cerr << _name << "done contents change @ " << get_microseconds() << endl;
+		// cerr << _name << "done contents change @ " << get_microseconds() << endl;
 	}
 
 	for (s = dependent_checks_needed.begin(); s != dependent_checks_needed.end(); ++s) {
@@ -529,7 +536,7 @@ Playlist::flush_notifications ()
 	}
 
 	if (!pending_range_moves.empty ()) {
-		cerr << _name << " sends RangesMoved\n";
+		// cerr << _name << " sends RangesMoved\n";
 		RangesMoved (pending_range_moves);
 	}
 	
@@ -1530,9 +1537,7 @@ Playlist::clear (bool with_signals)
 		pending_length = false;
 		LengthChanged ();
 		pending_contents_change = false;
-		cerr << _name << "send2 contents change @ " << get_microseconds() << endl;
 		ContentsChanged ();
-		cerr << _name << "done with contents changed @ " << get_microseconds() << endl;
 	}
 
 }

libs/ardour/region.cc

@@ -1144,8 +1144,6 @@ Region::_set_state (const XMLNode& node, int version, PropertyChange& what_chang
 {
 	const XMLProperty* prop;
 
-	cerr << "about to call ::set_properties for an XMLNode\n";
-
 	what_changed = set_properties (node);
 
 	if ((prop = node.property (X_("id")))) {

libs/pbd/pbd/undo.h

@@ -107,6 +107,8 @@ class UndoHistory : public PBD::ScopedConnectionList
 	void set_depth (uint32_t);
 
 	PBD::Signal0<void> Changed;
+	PBD::Signal0<void> BeginUndoRedo;
+	PBD::Signal0<void> EndUndoRedo;
 	
   private:
 	bool _clearing;

libs/pbd/undo.cc

@@ -122,25 +122,15 @@ UndoTransaction::operator() ()
 void
 UndoTransaction::undo ()
 {
-	struct timeval start, end, diff;
-	gettimeofday (&start, 0);
 	for (list<Command*>::reverse_iterator i = actions.rbegin(); i != actions.rend(); ++i) {
 		(*i)->undo();
 	}
-	gettimeofday (&end, 0);
-	timersub (&end, &start, &diff);
-	cerr << "Undo took " << diff.tv_sec << '.' << diff.tv_usec << endl;
 }
 
 void
 UndoTransaction::redo ()
 {
-	struct timeval start, end, diff;
-	gettimeofday (&start, 0);
         (*this)();
-	gettimeofday (&end, 0);
-	timersub (&end, &start, &diff);
-	cerr << "Undo took " << diff.tv_sec << '.' << diff.tv_usec << endl;
 }
 
 XMLNode &UndoTransaction::get_state()
@@ -161,6 +151,20 @@ XMLNode &UndoTransaction::get_state()
     return *node;
 }
 
+class UndoRedoSignaller {
+public:
+    UndoRedoSignaller (UndoHistory& uh) 
+	    : _history (uh) { 
+	    _history.BeginUndoRedo(); 
+    }
+    ~UndoRedoSignaller() { 
+	    _history.EndUndoRedo(); 
+    }
+
+private:
+    UndoHistory& _history;
+};
+
 UndoHistory::UndoHistory ()
 {
 	_clearing = false;
@@ -242,6 +246,16 @@ UndoHistory::remove (UndoTransaction* const ut)
 void
 UndoHistory::undo (unsigned int n)
 {
+	if (n == 0) {
+		return;
+	}
+
+	struct timeval start, end, diff;
+	gettimeofday (&start, 0);
+
+	{
+		UndoRedoSignaller exception_safe_signaller (*this);
+
 		while (n--) {
 			if (UndoList.size() == 0) {
 				return;
@@ -251,6 +265,15 @@ UndoHistory::undo (unsigned int n)
 			ut->undo ();
 			RedoList.push_back (ut);
 		}
+		gettimeofday (&end, 0);
+		timersub (&end, &start, &diff);
+		cerr << "Undo-pre-signals took " << diff.tv_sec << '.' << diff.tv_usec << endl;
+
+	}
+
+	gettimeofday (&end, 0);
+	timersub (&end, &start, &diff);
+	cerr << "Undo took " << diff.tv_sec << '.' << diff.tv_usec << endl;
 
 	Changed (); /* EMIT SIGNAL */
 }
@@ -258,6 +281,16 @@ UndoHistory::undo (unsigned int n)
 void
 UndoHistory::redo (unsigned int n)
 {
+	if (n == 0) {
+		return;
+	}
+
+	struct timeval start, end, diff;
+	gettimeofday (&start, 0);
+
+	{
+		UndoRedoSignaller exception_safe_signaller (*this);
+		
 		while (n--) {
 			if (RedoList.size() == 0) {
 				return;
@@ -267,7 +300,16 @@ UndoHistory::redo (unsigned int n)
 			ut->redo ();
 			UndoList.push_back (ut);
 		}
+		gettimeofday (&end, 0);
+		timersub (&end, &start, &diff);
+		cerr << "Redo-pre-signals took " << diff.tv_sec << '.' << diff.tv_usec << endl;
+	}
 
+	gettimeofday (&end, 0);
+	timersub (&end, &start, &diff);
+	cerr << "Redo took " << diff.tv_sec << '.' << diff.tv_usec << endl;
+
+	EndUndoRedo (); /* EMIT SIGNAL */
 	Changed (); /* EMIT SIGNAL */
 }