track_record_axis.h

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/*
 * Copyright (C) 2020 Robin Gareus <robin@gareus.org>
 *
 * 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
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#ifndef __gtkardour_track_record_axis_h_
#define __gtkardour_track_record_axis_h_
 
#include <cmath>
#include <vector>
 
#include <ytkmm/alignment.h>
#include <ytkmm/box.h>
#include <ytkmm/drawingarea.h>
#include <ytkmm/entry.h>
#include <ytkmm/eventbox.h>
#include <ytkmm/separator.h>
#include <ytkmm/sizegroup.h>
 
#include "pbd/stateful.h"
 
#include "ardour/ardour.h"
#include "ardour/types.h"
 
#include "widgets/ardour_button.h"
#include "widgets/ardour_spacer.h"
#include "widgets/frame.h"
 
#include "io_button.h"
#include "level_meter.h"
#include "route_ui.h"
 
namespace ARDOUR
{
        class Region;
        class Route;
        class RouteGroup;
        class Session;
        class Track;
}
 
class LevelMeterVBox;
class RouteGroupMenu;
 
class TrackRecordAxis : public Gtk::VBox, public AxisView, public RouteUI
{
public:
        TrackRecordAxis (ARDOUR::Session*, std::shared_ptr<ARDOUR::Route>);
        ~TrackRecordAxis ();
 
        /* AxisView */
        std::string name () const;
        Gdk::Color  color () const;
 
        std::shared_ptr<ARDOUR::Stripable> stripable() const {
                return RouteUI::stripable();
        }
 
        void set_session (ARDOUR::Session* s);
 
        void fast_update ();
        bool start_rename ();
        void set_gui_extents (samplepos_t, samplepos_t);
 
        bool rec_extent (samplepos_t&, samplepos_t&) const;
        int  summary_xpos () const;
        int  summary_width () const;
 
        static PBD::Signal<void(TrackRecordAxis*)> CatchDeletion;
        static PBD::Signal<void(TrackRecordAxis*, bool)> EditNextName;
 
protected:
        void self_delete ();
 
        void on_size_allocate (Gtk::Allocation&);
        void on_size_request (Gtk::Requisition*);
 
        /* AxisView */
        std::string state_id () const;
 
        /* route UI */
        void set_button_names ();
        void route_rec_enable_changed ();
        void blink_rec_display (bool onoff);
        void route_active_changed ();
        void map_frozen ();
 
private:
        void on_theme_changed ();
        void parameter_changed (std::string const& p);
 
        void set_name_label ();
 
        void reset_peak_display ();
        void reset_route_peak_display (ARDOUR::Route*);
        void reset_group_peak_display (ARDOUR::RouteGroup*);
        bool namebox_button_press (GdkEventButton*);
 
        bool playlist_click (GdkEventButton*);
        bool route_ops_click (GdkEventButton*);
        void build_route_ops_menu ();
 
        /* name editing */
        void end_rename (bool);
        void entry_changed ();
        void entry_activated ();
        bool entry_focus_in (GdkEventFocus*);
        bool entry_focus_out (GdkEventFocus*);
        bool entry_key_press (GdkEventKey*);
        bool entry_key_release (GdkEventKey*);
        bool entry_button_press (GdkEventButton*);
        void entry_populate_popup (Gtk::Menu*);
        void disconnect_entry_signals ();
 
        /* RouteUI */
        void route_property_changed (const PBD::PropertyChange&);
        void route_color_changed ();
        void update_sensitivity ();
 
        bool _clear_meters;
 
        Gtk::Table _ctrls;
        Gtk::Menu* _route_ops_menu;
 
        bool          _renaming;
        Gtk::EventBox _namebox;
        Gtk::Entry    _nameentry;
        bool          _nameentry_ctx;
 
        LevelMeterVBox*              _level_meter;
        IOButton                     _input_button;
        ArdourWidgets::ArdourButton  _number_label;
        ArdourWidgets::ArdourButton  _playlist_button;
        ArdourWidgets::Frame         _name_frame;
        ArdourWidgets::ArdourVSpacer _vseparator;
 
        Glib::RefPtr<Gtk::SizeGroup> _ctrls_button_size_group;
        Glib::RefPtr<Gtk::SizeGroup> _monitor_ctrl_size_group;
 
        static bool                         _size_group_initialized;
        static Glib::RefPtr<Gtk::SizeGroup> _track_number_size_group;
 
        PBD::ScopedConnectionList   _route_connections;
        std::list<sigc::connection> _entry_connections;
 
        struct RecInfo {
                RecInfo (samplepos_t s, samplepos_t e)
                        : capture_start (s)
                        , capture_end (e)
                {}
                samplepos_t capture_start;
                samplepos_t capture_end;
        };
 
        class TrackSummary : public CairoWidget
        {
                public:
                        TrackSummary (std::shared_ptr<ARDOUR::Route>);
                        ~TrackSummary ();
 
                        void playhead_position_changed (samplepos_t p);
                        void set_gui_extents (samplepos_t, samplepos_t);
                        bool rec_extent (samplepos_t&, samplepos_t&) const;
 
                protected:
                        void render (Cairo::RefPtr<Cairo::Context> const&, cairo_rectangle_t*);
                        void on_size_request (Gtk::Requisition*);
                        void on_size_allocate (Gtk::Allocation&);
                        bool on_button_press_event (GdkEventButton*);
 
                private:
                        void render_region (std::shared_ptr<ARDOUR::Region>, Cairo::RefPtr<Cairo::Context> const&, double);
                        void playlist_changed ();
                        void playlist_contents_changed ();
                        void property_changed (PBD::PropertyChange const&);
                        void maybe_setup_rec_box ();
                        void update_rec_box ();
 
                        double sample_to_xpos (samplepos_t p) const
                        {
                                return (p - _start) * _xscale;
                        }
 
                        std::shared_ptr<ARDOUR::Track> _track;
                        samplepos_t _start;
                        samplepos_t _end;
                        double      _xscale;
                        double      _last_playhead;
                        bool        _rec_updating;
                        bool        _rec_active;
 
                        std::vector<RecInfo>      _rec_rects;
                        PBD::ScopedConnection     _playlist_connections;
                        PBD::ScopedConnectionList _connections;
                        sigc::connection          _screen_update_connection;
        };
 
        TrackSummary _track_summary;
 
};
 
#endif