add StartTouch and EndTouch signals to Plugin class; make PluginInsert handle these signals and mark the start end of touch/gestures for a given AutomationControl; net result is that touch automation now works for AudioUnit plugins, at least those whose GUIs send kAudioUnitEvent_{Begin,End}ParameterGesture events

git-svn-id: svn://localhost/ardour2/branches/3.0@13028 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 23 insertions, 0 deletions

diff --git a/libs/ardour/plugin_insert.cc b/libs/ardour/plugin_insert.cc
index baaa632d2b..6e7cfe373f 100644
--- a/libs/ardour/plugin_insert.cc
+++ b/libs/ardour/plugin_insert.cc
@@ -1263,7 +1263,12 @@ PluginInsert::add_plugin (boost::shared_ptr<Plugin> plugin)
 	plugin->set_insert_info (this);
 	
 	if (_plugins.empty()) {
+                /* first (and probably only) plugin instance - connect to relevant signals 
+                 */
+
 		plugin->ParameterChanged.connect_same_thread (*this, boost::bind (&PluginInsert::parameter_changed, this, _1, _2));
+                plugin->StartTouch.connect_same_thread (*this, boost::bind (&PluginInsert::start_touch, this, _1));
+                plugin->EndTouch.connect_same_thread (*this, boost::bind (&PluginInsert::end_touch, this, _1));
 	}
 
 	_plugins.push_back (plugin);
@@ -1292,3 +1297,21 @@ PluginInsert::monitoring_changed ()
 		(*i)->monitoring_changed ();
 	}
 }
+
+void
+PluginInsert::start_touch (uint32_t param_id)
+{
+        boost::shared_ptr<AutomationControl> ac = automation_control (Evoral::Parameter (PluginAutomation, 0, param_id));
+        if (ac) {
+                ac->start_touch (session().audible_frame());
+        }
+}
+
+void
+PluginInsert::end_touch (uint32_t param_id)
+{
+        boost::shared_ptr<AutomationControl> ac = automation_control (Evoral::Parameter (PluginAutomation, 0, param_id));
+        if (ac) {
+                ac->stop_touch (true, session().audible_frame());
+        }
+}