step_editor.h

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/*
 * Copyright (C) 2010-2018 Paul Davis <paul@linuxaudiosystems.com>
 * Copyright (C) 2011-2015 David Robillard <d@drobilla.net>
 *
 * 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 __gtk2_ardour_step_editor_h__
#define __gtk2_ardour_step_editor_h__
 
#include <string>
 
#include <ydk/gdk.h>
#include <sigc++/trackable.h>
 
#include "pbd/signals.h"
 
#include "temporal/beats.h"
#include "temporal/timeline.h"
 
#include "ardour/midi_state_tracker.h"
 
namespace ARDOUR {
class MidiTrack;
class MidiRegion;
class Region;
}
 
class MidiRegionView;
class MidiTimeAxisView;
class PublicEditor;
class StepEntry;
 
class StepEditor : public PBD::ScopedConnectionList, public sigc::trackable
{
public:
        StepEditor (PublicEditor&, std::shared_ptr<ARDOUR::MidiTrack>, MidiTimeAxisView&);
        virtual ~StepEditor ();
 
        void step_entry_done ();
 
        void check_step_edit ();
        void step_edit_rest (Temporal::Beats beats);
        void step_edit_beat_sync ();
        void step_edit_bar_sync ();
        int  step_add_bank_change (uint8_t channel, uint8_t bank);
        int  step_add_program_change (uint8_t channel, uint8_t program);
        int  step_add_note (uint8_t channel, uint8_t pitch, uint8_t velocity,
                            Temporal::Beats beat_duration);
        void step_to_next_chord ();
        void step_edit_sustain (Temporal::Beats beats);
        bool step_edit_within_triplet () const;
        void step_edit_toggle_triplet ();
        bool step_edit_within_chord () const;
        void step_edit_toggle_chord ();
        void reset_step_edit_beat_pos ();
        void resync_step_edit_to_edit_point ();
        void move_step_edit_beat_pos (Temporal::Beats beats);
        void set_step_edit_cursor_width (Temporal::Beats beats);
 
        std::string name () const;
 
        void start_step_editing ();
        void stop_step_editing ();
 
private:
        Temporal::timepos_t                    step_edit_insert_position;
        Temporal::Beats                        step_edit_beat_pos;
        std::shared_ptr<ARDOUR::MidiRegion>  step_edit_region;
        MidiRegionView*                        step_edit_region_view;
        uint8_t                               _step_edit_triplet_countdown;
        bool                                  _step_edit_within_chord;
        Temporal::Beats                       _step_edit_chord_duration;
        PBD::ScopedConnection                  step_edit_region_connection;
        PublicEditor&                         _editor;
        std::shared_ptr<ARDOUR::MidiTrack>    _track;
        MidiTimeAxisView&                     _mtv;
        Temporal::Beats                       _last_added_beat;
        ARDOUR::MidiNoteTracker               _tracker;
        ARDOUR::MidiNoteTracker               _chord_tracker;
 
        sigc::connection delete_connection;
        sigc::connection hide_connection;
 
        void region_removed (std::weak_ptr<ARDOUR::Region>);
        void playlist_changed ();
        bool step_entry_hidden (GdkEventAny*);
        void resync_step_edit_position ();
        void prepare_step_edit_region ();
};
 
#endif /* __gtk2_ardour_step_editor_h__ */