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"
31 #include "gtkmm2ext/persistent_tooltip.h"
33 class KnobPersistentTooltip : public Gtkmm2ext::PersistentTooltip
36 KnobPersistentTooltip (Gtk::Widget* w);
40 bool dragging () const;
47 class ArdourKnob : public CairoWidget , public Gtkmm2ext::Activatable
66 ArdourKnob (Element e = default_elements, Flags flags = NoFlags);
67 virtual ~ArdourKnob ();
69 void set_active_state (Gtkmm2ext::ActiveState);
70 void set_visual_state (Gtkmm2ext::VisualState);
72 Element elements() const { return _elements; }
73 void set_elements (Element);
74 void add_elements (Element);
75 static Element default_elements;
77 void set_tooltip_prefix (std::string pfx) { _tooltip_prefix = pfx; }
79 boost::shared_ptr<PBD::Controllable> get_controllable() { return binding_proxy.get_controllable(); }
80 void set_controllable (boost::shared_ptr<PBD::Controllable> c);
82 bool on_button_press_event (GdkEventButton*);
83 bool on_button_release_event (GdkEventButton*);
84 bool on_scroll_event (GdkEventScroll* ev);
85 bool on_motion_notify_event (GdkEventMotion *ev) ;
87 void color_handler ();
90 void render (cairo_t *, cairo_rectangle_t *);
91 void on_size_request (Gtk::Requisition* req);
92 void on_size_allocate (Gtk::Allocation&);
93 void on_style_changed (const Glib::RefPtr<Gtk::Style>&);
94 void on_name_changed ();
95 bool on_enter_notify_event (GdkEventCrossing*);
96 bool on_leave_notify_event (GdkEventCrossing*);
97 bool on_focus_in_event (GdkEventFocus*);
98 bool on_focus_out_event (GdkEventFocus*);
100 void controllable_changed ();
101 PBD::ScopedConnection watch_connection;
107 BindingProxy binding_proxy;
113 float _val; // current value [0..1]
114 float _normal; // default value, arc
115 float _dead_zone_delta;
119 void action_sensitivity_changed ();
120 void action_visibility_changed ();
121 void action_tooltip_changed ();
123 std::string _tooltip_prefix;
124 KnobPersistentTooltip _tooltip;
127 #endif /* __gtk2_ardour_ardour_knob_h__ */