2 Copyright (C) 2014 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 #ifndef __gtk2_ardour_ardour_knob_h__
20 #define __gtk2_ardour_ardour_knob_h__
25 #include <gtkmm/action.h>
27 #include "pbd/signals.h"
28 #include "gtkmm2ext/binding_proxy.h"
29 #include "gtkmm2ext/activatable.h"
30 #include "gtkmm2ext/cairo_widget.h"
32 class ArdourKnob : public CairoWidget , public Gtkmm2ext::Activatable
45 ArdourKnob (Element e = default_elements);
46 virtual ~ArdourKnob ();
48 void set_active_state (Gtkmm2ext::ActiveState);
49 void set_visual_state (Gtkmm2ext::VisualState);
51 Element elements() const { return _elements; }
52 void set_elements (Element);
53 void add_elements (Element);
54 static Element default_elements;
56 boost::shared_ptr<PBD::Controllable> get_controllable() { return binding_proxy.get_controllable(); }
57 void set_controllable (boost::shared_ptr<PBD::Controllable> c);
59 bool on_button_press_event (GdkEventButton*);
60 bool on_button_release_event (GdkEventButton*);
61 bool on_scroll_event (GdkEventScroll* ev);
62 bool on_motion_notify_event (GdkEventMotion *ev) ;
64 void color_handler ();
67 void render (cairo_t *, cairo_rectangle_t *);
68 void on_size_request (Gtk::Requisition* req);
69 void on_size_allocate (Gtk::Allocation&);
70 void on_style_changed (const Glib::RefPtr<Gtk::Style>&);
71 void on_name_changed ();
72 bool on_enter_notify_event (GdkEventCrossing*);
73 bool on_leave_notify_event (GdkEventCrossing*);
74 bool on_focus_in_event (GdkEventFocus*);
75 bool on_focus_out_event (GdkEventFocus*);
77 void controllable_changed ();
78 PBD::ScopedConnection watch_connection;
84 BindingProxy binding_proxy;
89 float _val; //percent of knob travel
91 void action_sensitivity_changed ();
92 void action_visibility_changed ();
93 void action_tooltip_changed ();
96 #endif /* __gtk2_ardour_ardour_knob_h__ */