X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=gtk2_ardour%2Flevel_meter.cc;h=f7b44d1b0861778bb57a9834f45a086200486900;hb=bed58e9f372a6c2671e9f072c19a4c77d06c4292;hp=f6e3731aac1130546759fcf9a59ce038cd1c13db;hpb=68e943265edf04e63a8e8b8f62bab20f99d9c637;p=ardour.git

diff --git a/gtk2_ardour/level_meter.cc b/gtk2_ardour/level_meter.cc
index f6e3731aac..f7b44d1b08 100644
--- a/gtk2_ardour/level_meter.cc
+++ b/gtk2_ardour/level_meter.cc
@@ -58,9 +58,8 @@ using namespace std;
 //sigc::signal<void,RouteGroup*> LevelMeter::ResetGroupPeakDisplays;
 
 
-LevelMeter::LevelMeter (boost::shared_ptr<IO> io, Session& s)
-	: _io (io),
-	  _session (s)
+LevelMeter::LevelMeter (Session& s)
+	: _session (s)
 	
 {
 	set_spacing (1);
@@ -79,12 +78,16 @@ LevelMeter::on_theme_changed()
 LevelMeter::~LevelMeter ()
 {
 	for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
-		if ((*i).meter) {
-			delete (*i).meter;
-		}
+		delete (*i).meter;
 	}
 }
 
+void
+LevelMeter::set_io (boost::shared_ptr<IO> io)
+{
+	_io = io;
+}
+
 float
 LevelMeter::update_meters ()
 {
@@ -144,6 +147,10 @@ LevelMeter::hide_all_meters ()
 void
 LevelMeter::setup_meters (int len, int initial_width)
 {
+ 	if (!_io) {
+ 		return; /* do it later */
+ 	}
+ 
 	uint32_t nmeters = _io->n_outputs().n_total();
 	regular_meter_width = initial_width;