From 58b325de319ab1d807511783f55a7fe3748e8614 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Sun, 7 Jul 2013 13:34:36 +0200
Subject: prepare meter type unification

---
 gtk2_ardour/level_meter.cc | 14 ++++++++++----
 gtk2_ardour/level_meter.h  |  3 +++
 libs/ardour/ardour/meter.h | 10 ++--------
 libs/ardour/meter.cc       |  7 ++++++-
 4 files changed, 21 insertions(+), 13 deletions(-)

diff --git a/gtk2_ardour/level_meter.cc b/gtk2_ardour/level_meter.cc
index 36a469f35c..3d91b75878 100644
--- a/gtk2_ardour/level_meter.cc
+++ b/gtk2_ardour/level_meter.cc
@@ -44,10 +44,6 @@ using namespace Gtkmm2ext;
 using namespace Gtk;
 using namespace std;
 
-//sigc::signal<void> LevelMeter::ResetAllPeakDisplays;
-//sigc::signal<void,RouteGroup*> LevelMeter::ResetGroupPeakDisplays;
-
-
 LevelMeter::LevelMeter (Session* s)
 	: _meter (0)
 	, meter_length (0)
@@ -79,10 +75,13 @@ void
 LevelMeter::set_meter (PeakMeter* meter)
 {
 	_configuration_connection.disconnect();
+	_meter_type_connection.disconnect();
+
 	_meter = meter;
 
 	if (_meter) {
 		_meter->ConfigurationChanged.connect (_configuration_connection, invalidator (*this), boost::bind (&LevelMeter::configuration_changed, this, _1, _2), gui_context());
+		_meter->TypeChanged.connect (_meter_type_connection, invalidator (*this), boost::bind (&LevelMeter::meter_type_changed, this, _1), gui_context());
 	}
 }
 
@@ -155,6 +154,13 @@ LevelMeter::configuration_changed (ChanCount /*in*/, ChanCount /*out*/)
 	setup_meters (meter_length, regular_meter_width, thin_meter_width);
 }
 
+void
+LevelMeter::meter_type_changed (MeterType t)
+{
+	meter_type = t;
+	MeterTypeChanged(t);
+}
+
 void
 LevelMeter::hide_all_meters ()
 {
diff --git a/gtk2_ardour/level_meter.h b/gtk2_ardour/level_meter.h
index 0da8ed2a8b..ead63aa50b 100644
--- a/gtk2_ardour/level_meter.h
+++ b/gtk2_ardour/level_meter.h
@@ -72,6 +72,7 @@ class LevelMeter : public Gtk::HBox, public ARDOUR::SessionHandlePtr
 
 	/** Emitted in the GUI thread when a button is pressed over the meter */
 	PBD::Signal1<bool, GdkEventButton *> ButtonPress;
+	PBD::Signal1<void, ARDOUR::MeterType> MeterTypeChanged;
 
   private:
 	ARDOUR::PeakMeter* _meter;
@@ -102,6 +103,7 @@ class LevelMeter : public Gtk::HBox, public ARDOUR::SessionHandlePtr
 	ARDOUR::MeterType      meter_type;
 
 	PBD::ScopedConnection _configuration_connection;
+	PBD::ScopedConnection _meter_type_connection;
 	PBD::ScopedConnection _parameter_connection;
 
 	void hide_all_meters ();
@@ -110,6 +112,7 @@ class LevelMeter : public Gtk::HBox, public ARDOUR::SessionHandlePtr
 
 	void parameter_changed (std::string);
 	void configuration_changed (ARDOUR::ChanCount in, ARDOUR::ChanCount out);
+	void meter_type_changed (ARDOUR::MeterType);
 
 	void on_theme_changed ();
 	bool style_changed;
diff --git a/libs/ardour/ardour/meter.h b/libs/ardour/ardour/meter.h
index 001178a226..31ebc76179 100644
--- a/libs/ardour/ardour/meter.h
+++ b/libs/ardour/ardour/meter.h
@@ -82,14 +82,6 @@ public:
 		}
 	}
 
-	float max_peak_power (uint32_t n) {
-		if (n < _max_peak_power.size()) {
-			return _max_peak_power[n];
-		} else {
-			return minus_infinity();
-		}
-	}
-
 	float meter_level (uint32_t n, MeterType type);
 
 	void set_type(MeterType t);
@@ -97,6 +89,8 @@ public:
 
 	XMLNode& state (bool full);
 
+	PBD::Signal1<void, MeterType> TypeChanged;
+
 private:
 	friend class IO;
 
diff --git a/libs/ardour/meter.cc b/libs/ardour/meter.cc
index a3390f9d05..c332143324 100644
--- a/libs/ardour/meter.cc
+++ b/libs/ardour/meter.cc
@@ -297,7 +297,11 @@ PeakMeter::meter_level(uint32_t n, MeterType type) {
 			}
 		default:
 		case MeterMaxPeak:
-			return max_peak_power(n);
+			if (n < _max_peak_power.size()) {
+				return _max_peak_power[n];
+			} else {
+				return minus_infinity();
+			}
 	}
 }
 void
@@ -311,6 +315,7 @@ PeakMeter::set_type(MeterType t)
 			_kmeter[n]->reset();
 		}
 	}
+	TypeChanged(t);
 }
 
 XMLNode&
-- 
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