From 8d3a8ca9136c3fb8a8bd24dd5d99c8e2e76699bd Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Wed, 21 Oct 2015 22:31:30 -0400
Subject: Add AutomationControl::set_value_unchecked() and
 AutomationControl::writable() and use them.

Classes derived from AutomationControl now check ::writable() in their ::set_value() methods to ensure that they
do not attempt to overwrite data sent to them while automation playback is underway.
---
 libs/ardour/pan_controllable.cc | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'libs/ardour/pan_controllable.cc')

diff --git a/libs/ardour/pan_controllable.cc b/libs/ardour/pan_controllable.cc
index ecffa17440..71c8a9f62f 100644
--- a/libs/ardour/pan_controllable.cc
+++ b/libs/ardour/pan_controllable.cc
@@ -37,7 +37,15 @@ PanControllable::lower () const
 void
 PanControllable::set_value (double v)
 {
-        boost::shared_ptr<Panner> p = owner->panner();
+	if (writable()) {
+		set_value_unchecked (v);
+	}
+}
+
+void
+PanControllable::set_value_unchecked (double v)
+{
+	boost::shared_ptr<Panner> p = owner->panner();
 
         if (!p) {
                 /* no panner: just do it */
-- 
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