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livetrax/gtk2_ardour/step_editor.h

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3.7 KiB
C++

/*
Copyright (C) 2012 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __gtk2_ardour_step_editor_h__
#define __gtk2_ardour_step_editor_h__
#include <string>
#include <gdk/gdk.h>
#include <sigc++/trackable.h>
#include "pbd/signals.h"
#include "temporal/beats.h"
namespace ARDOUR {
class MidiTrack;
class MidiRegion;
}
class MidiRegionView;
class MidiTimeAxisView;
class PublicEditor;
class StepEntry;
/** A StepEditor is an object which understands how to interact with the
* MidiTrack and MidiTimeAxisView APIs to make the changes required during step
* editing. However, it defers all GUI matters to the StepEntry class, which
* presents an interface to the user, and then calls StepEditor methods to make
* changes.
*
* The StepEntry is a singleton, used over and over each time the user wants to
* step edit; the StepEditor is owned by a MidiTimeAxisView and re-used for any
* step editing in the MidiTrack for which the MidiTimeAxisView is a view.
*/
class StepEditor : public PBD::ScopedConnectionList, public sigc::trackable
{
public:
StepEditor (PublicEditor&, boost::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_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:
ARDOUR::samplepos_t step_edit_insert_position;
Temporal::Beats step_edit_beat_pos;
boost::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;
boost::shared_ptr<ARDOUR::MidiTrack> _track;
MidiTimeAxisView& _mtv;
int8_t last_added_pitch;
Temporal::Beats last_added_end;
sigc::connection delete_connection;
sigc::connection hide_connection;
void region_removed (boost::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__ */