From 413b996a2c4a94e3b4d685f5433d31d386ec6ff8 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Sat, 6 Jul 2013 16:32:36 +0200
Subject: [PATCH] highlight meter-background of a port that has peaked
 (experiment)

---
 gtk2_ardour/level_meter.cc | 18 +++++++++++-------
 gtk2_ardour/level_meter.h  |  2 ++
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/gtk2_ardour/level_meter.cc b/gtk2_ardour/level_meter.cc
index cf16107147..d0f46f0597 100644
--- a/gtk2_ardour/level_meter.cc
+++ b/gtk2_ardour/level_meter.cc
@@ -100,19 +100,21 @@ LevelMeter::update_meters ()
 
 	for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 		if ((*i).packed) {
+			mpeak = _meter->max_peak_power(n);
+			if (mpeak > (*i).max_peak) {
+				(*i).max_peak = mpeak;
+				(*i).meter->set_highlight(mpeak > Config->get_meter_peak());
+			}
+			if (mpeak > max_peak) {
+				max_peak = mpeak;
+			}
+
 			peak = _meter->peak_power (n);
 			if (n < nmidi) {
 				(*i).meter->set (peak);
 			} else {
 				(*i).meter->set (log_meter (peak));
 			}
-			mpeak = _meter->max_peak_power(n);
-			if (mpeak > max_peak) {
-				max_peak = mpeak;
-			}
-			if (mpeak > max_peak) {
-				max_peak = mpeak;
-			}
 		}
 	}
 	return max_peak;
@@ -293,6 +295,8 @@ void LevelMeter::clear_meters ()
 {
 	for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
 		(*i).meter->clear();
+		(*i).max_peak = minus_infinity();
+		(*i).meter->set_highlight(false);
 	}
 	max_peak = minus_infinity();
 }
diff --git a/gtk2_ardour/level_meter.h b/gtk2_ardour/level_meter.h
index bf9f42a528..0792872755 100644
--- a/gtk2_ardour/level_meter.h
+++ b/gtk2_ardour/level_meter.h
@@ -80,12 +80,14 @@ class LevelMeter : public Gtk::HBox, public ARDOUR::SessionHandlePtr
 	    gint16                width;
             int			  length;
 	    bool                  packed;
+	    float                 max_peak;
 
 	    MeterInfo() {
 		    meter = 0;
 		    width = 0;
                     length = 0;
 		    packed = false;
+		    max_peak = -INFINITY;
 	    }
 	};