use new syntax for connecting to backend signals that enforces explicit connection...
[ardour.git] / gtk2_ardour / automation_controller.h
1 /*
2     Copyright (C) 2007 Paul Davis
3     Author: Dave Robillard
4
5     This program is free software; you can redistribute it and/or modify
6     it under the terms of the GNU General Public License as published by
7     the Free Software Foundation; either version 2 of the License, or
8     (at your option) any later version.
9
10     This program is distributed in the hope that it will be useful,
11     but WITHOUT ANY WARRANTY; without even the implied warranty of
12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13     GNU General Public License for more details.
14
15     You should have received a copy of the GNU General Public License
16     along with this program; if not, write to the Free Software
17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18
19 */
20
21 #ifndef __ardour_gtk_automation_controller_h__
22 #define __ardour_gtk_automation_controller_h__
23
24 #include <boost/shared_ptr.hpp>
25 #include <gtkmm.h>
26
27 #include "gtkmm2ext/barcontroller.h"
28 #include "pbd/signals.h"
29
30 namespace ARDOUR {
31         class Session;
32         class AutomationList;
33         class AutomationControl;
34         class Automatable;
35 }
36
37
38 class AutomationController : public Gtkmm2ext::BarController {
39 public:
40         static boost::shared_ptr<AutomationController> create(
41                         boost::shared_ptr<ARDOUR::Automatable> parent,
42                         const Evoral::Parameter& param,
43                         boost::shared_ptr<ARDOUR::AutomationControl> ac);
44
45         ~AutomationController();
46
47         boost::shared_ptr<ARDOUR::AutomationControl> controllable() { return _controllable; }
48
49         Gtk::Adjustment* adjustment() { return _adjustment; }
50
51         void display_effective_value();
52         void value_adjusted();
53
54 private:
55         AutomationController (boost::shared_ptr<ARDOUR::AutomationControl> ac, Gtk::Adjustment* adj);
56         std::string get_label (int&);
57
58         void start_touch();
59         void end_touch();
60
61         void value_changed();
62         void automation_state_changed();
63
64         bool                                         _ignore_change;
65         boost::shared_ptr<ARDOUR::AutomationControl> _controllable;
66         Gtk::Adjustment*                             _adjustment;
67         sigc::connection                             _screen_update_connection;
68         PBD::ScopedConnection                        _changed_connection;
69 };
70
71
72 #endif /* __ardour_gtk_automation_controller_h__ */