make sure that rec-enable changes get to do their non-RT stuff before being queued...
[ardour.git] / libs / ardour / ardour / automation_control.h
index d9e7a232afc50bac200b6d7d0caba6eb67e629c3..e15abbec46ce58f0594b526d696b9b557c169b2c 100644 (file)
@@ -1,6 +1,6 @@
 /*
     Copyright (C) 2007 Paul Davis
-       Author: Dave Robillard
+    Author: David Robillard
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
 #ifndef __ardour_automation_control_h__
 #define __ardour_automation_control_h__
 
-#include <boost/shared_ptr.hpp>
-#include <pbd/controllable.h>
+#include <map>
 
-namespace ARDOUR {
+#include <glibmm/threads.h>
 
-class AutomationList;
-class Session;
+#include <boost/shared_ptr.hpp>
+#include <boost/enable_shared_from_this.hpp>
 
+#include "pbd/controllable.h"
 
-/** A PBD:Controllable with associated automation data (AutomationList)
- */
-class AutomationControl : public PBD::Controllable
-{
-public:
-       AutomationControl(ARDOUR::Session&, boost::shared_ptr<ARDOUR::AutomationList>,
-                       std::string name="unnamed controllable");
+#include "evoral/types.hpp"
+#include "evoral/Control.hpp"
 
-       void set_value(float val);
-       float get_value() const;
-       float user_value() const;
+#include "ardour/automation_list.h"
+#include "ardour/control_group_member.h"
+#include "ardour/parameter_descriptor.h"
 
-       void set_list(boost::shared_ptr<ARDOUR::AutomationList>);
+#include "ardour/libardour_visibility.h"
 
-       boost::shared_ptr<ARDOUR::AutomationList>       list()       { return _list; }
-       boost::shared_ptr<const ARDOUR::AutomationList> list() const { return _list; }
+namespace ARDOUR {
+
+class Session;
+class Automatable;
+class ControlGroup;
 
-protected:
-       ARDOUR::Session&                          _session;
-       boost::shared_ptr<ARDOUR::AutomationList> _list;
-       float                                     _user_value;
+/** A PBD::Controllable with associated automation data (AutomationList)
+ */
+class LIBARDOUR_API AutomationControl
+       : public PBD::Controllable
+       , public Evoral::Control
+       , public boost::enable_shared_from_this<AutomationControl>
+       , public ControlGroupMember
+{
+    public:
+       AutomationControl(ARDOUR::Session&,
+                         const Evoral::Parameter&                  parameter,
+                         const ParameterDescriptor&                desc,
+                         boost::shared_ptr<ARDOUR::AutomationList> l=boost::shared_ptr<ARDOUR::AutomationList>(),
+                         const std::string&                        name="");
+
+       ~AutomationControl ();
+
+       boost::shared_ptr<AutomationList> alist() const {
+               return boost::dynamic_pointer_cast<AutomationList>(_list);
+       }
+
+       void set_list (boost::shared_ptr<Evoral::ControlList>);
+
+       inline bool automation_playback() const {
+               return alist() ? alist()->automation_playback() : false;
+       }
+
+       inline bool automation_write() const {
+               return alist() ? alist()->automation_write() : false;
+       }
+
+       inline AutoState automation_state() const {
+               return alist() ? alist()->automation_state() : Off;
+       }
+
+       inline AutoStyle automation_style() const {
+               return alist() ? alist()->automation_style() : Absolute;
+       }
+
+       void set_automation_state(AutoState as);
+       void set_automation_style(AutoStyle as);
+       void start_touch(double when);
+       void stop_touch(bool mark, double when);
+
+       /* inherited from PBD::Controllable.
+        */
+       double get_value () const;
+       /* inherited from PBD::Controllable.
+        * Derived classes MUST call ::writable() to verify
+        * that writing to the parameter is legal at that time.
+        */
+       void set_value (double value, PBD::Controllable::GroupControlDisposition group_override);
+       /* automation related value setting */
+       virtual bool writable () const;
+       /* Call to ::set_value() with no test for writable() because
+        * this is only used by automation playback.
+        */
+       void set_value_unchecked (double val) {
+               actually_set_value (val, PBD::Controllable::NoGroup);
+       }
+
+       double lower()   const { return _desc.lower; }
+       double upper()   const { return _desc.upper; }
+       double normal()  const { return _desc.normal; }
+       bool   toggled() const { return _desc.toggled; }
+
+       double internal_to_interface (double i) const;
+       double interface_to_internal (double i) const;
+
+       const ParameterDescriptor& desc() const { return _desc; }
+
+       const ARDOUR::Session& session() const { return _session; }
+       void commit_transaction (bool did_write);
+
+  protected:
+       ARDOUR::Session& _session;
+       boost::shared_ptr<ControlGroup> _group;
+
+       const ParameterDescriptor _desc;
+
+       bool check_rt (double val, Controllable::GroupControlDisposition gcd);
+
+       /* derived classes may reimplement this, but should either
+          call this explicitly inside their version OR make sure that the
+          Controllable::Changed signal is emitted when necessary.
+       */
+
+       virtual void actually_set_value (double value, PBD::Controllable::GroupControlDisposition);
+
+       /* Session needs to call this method before it queues up the real
+          change for execution in a realtime context. C++ access control sucks.
+       */
+       friend class Session;
+       virtual void do_pre_realtime_queue_stuff (double new_value) {}
+
+  private:
+       /* I am unclear on why we have to make ControlGroup a friend in order
+          to get access to the ::set_group() method when it is already
+          declared to be a friend in ControlGroupMember. Oh well.
+       */
+       friend class ControlGroup;
+       void set_group (boost::shared_ptr<ControlGroup>);
 };