128 lines
3.2 KiB
C++
128 lines
3.2 KiB
C++
/*
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Copyright (C) 2014 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __gtk2_ardour_ardour_knob_h__
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#define __gtk2_ardour_ardour_knob_h__
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#include <list>
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#include <stdint.h>
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#include <gtkmm/action.h>
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#include "pbd/signals.h"
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#include "gtkmm2ext/binding_proxy.h"
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#include "gtkmm2ext/activatable.h"
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#include "gtkmm2ext/cairo_widget.h"
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#include "gtkmm2ext/persistent_tooltip.h"
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class KnobPersistentTooltip : public Gtkmm2ext::PersistentTooltip
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{
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public:
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KnobPersistentTooltip (Gtk::Widget* w);
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void start_drag ();
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void stop_drag ();
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bool dragging () const;
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private:
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bool _dragging;
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};
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class ArdourKnob : public CairoWidget , public Gtkmm2ext::Activatable
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{
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public:
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enum Element {
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Arc = 0x1,
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Bevel = 0x2,
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unused2 = 0x4,
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unused3 = 0x8,
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unused4 = 0x10,
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unused5 = 0x20,
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};
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enum Flags {
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NoFlags = 0,
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Detent = 0x1,
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ArcToZero = 0x2,
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};
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ArdourKnob (Element e = default_elements, Flags flags = NoFlags);
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virtual ~ArdourKnob ();
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void set_active_state (Gtkmm2ext::ActiveState);
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void set_visual_state (Gtkmm2ext::VisualState);
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Element elements() const { return _elements; }
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void set_elements (Element);
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void add_elements (Element);
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static Element default_elements;
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void set_tooltip_prefix (std::string pfx) { _tooltip_prefix = pfx; }
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boost::shared_ptr<PBD::Controllable> get_controllable() { return binding_proxy.get_controllable(); }
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void set_controllable (boost::shared_ptr<PBD::Controllable> c);
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bool on_button_press_event (GdkEventButton*);
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bool on_button_release_event (GdkEventButton*);
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bool on_scroll_event (GdkEventScroll* ev);
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bool on_motion_notify_event (GdkEventMotion *ev) ;
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void color_handler ();
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protected:
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void render (cairo_t *, cairo_rectangle_t *);
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void on_size_request (Gtk::Requisition* req);
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void on_size_allocate (Gtk::Allocation&);
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void on_style_changed (const Glib::RefPtr<Gtk::Style>&);
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void on_name_changed ();
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bool on_enter_notify_event (GdkEventCrossing*);
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bool on_leave_notify_event (GdkEventCrossing*);
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bool on_focus_in_event (GdkEventFocus*);
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bool on_focus_out_event (GdkEventFocus*);
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void controllable_changed ();
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PBD::ScopedConnection watch_connection;
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private:
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Element _elements;
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BindingProxy binding_proxy;
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bool _hovering;
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float _grabbed_x;
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float _grabbed_y;
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float _val; // current value [0..1]
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float _normal; // default value, arc
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float _dead_zone_delta;
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Flags _flags;
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void action_sensitivity_changed ();
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void action_visibility_changed ();
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void action_tooltip_changed ();
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std::string _tooltip_prefix;
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KnobPersistentTooltip _tooltip;
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};
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#endif /* __gtk2_ardour_ardour_knob_h__ */
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