3.0 version of rev 5564 from 2.x - basic boolean plugin parameter automation (no graphical editing intended). this involved adding a new "toggled" property to Evoral::Parameter

git-svn-id: svn://localhost/ardour2/branches/3.0@7670 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 9 insertions, 1 deletions

diff --git a/libs/ardour/automation_control.cc b/libs/ardour/automation_control.cc
index a4e0a7bbc0..2989d82818 100644
--- a/libs/ardour/automation_control.cc
+++ b/libs/ardour/automation_control.cc
@@ -52,8 +52,16 @@ AutomationControl::set_value(double value)
 {
 	bool to_list = _list && _session.transport_stopped()
 		&& ((AutomationList*)_list.get())->automation_write();
+ 
+        if (to_list && parameter().toggled()) {
 
-	Control::set_double(value, to_list, _session.transport_frame());
+                //store the previous value just before this so any 
+                // interpolation works right
+                
+                _list->add (get_double(), _session.transport_frame()-1);
+        }
+
+	Control::set_double (value, to_list, _session.transport_frame());
 
 	Changed(); /* EMIT SIGNAL */
 }