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livetrax/gtk2_ardour/piano_roll_header.h

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/*
* Copyright (C) 2008-2009 David Robillard <d@drobilla.net>
* Copyright (C) 2010-2012 Paul Davis <paul@linuxaudiosystems.com>
*
* 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 __ardour_piano_roll_header_h__
#define __ardour_piano_roll_header_h__
#include "ardour/types.h"
#include <gtkmm/drawingarea.h>
namespace ARDOUR {
class MidiTrack;
}
class MidiTimeAxisView;
class MidiStreamView;
class PublicEditor;
class PianoRollHeader : public Gtk::DrawingArea {
public:
PianoRollHeader(MidiStreamView&);
bool on_expose_event (GdkEventExpose*);
bool on_motion_notify_event (GdkEventMotion*);
bool on_button_press_event (GdkEventButton*);
bool on_button_release_event (GdkEventButton*);
bool on_scroll_event (GdkEventScroll*);
bool on_enter_notify_event (GdkEventCrossing*);
bool on_leave_notify_event (GdkEventCrossing*);
void on_size_request(Gtk::Requisition*);
void instrument_info_change ();
void note_range_changed();
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void set_note_highlight (uint8_t note);
sigc::signal<void,uint8_t> SetNoteSelection;
sigc::signal<void,uint8_t> AddNoteSelection;
sigc::signal<void,uint8_t> ToggleNoteSelection;
sigc::signal<void,uint8_t> ExtendNoteSelection;
private:
struct NoteName {
std::string name;
bool from_midnam;
};
NoteName note_names[128];
bool have_note_names;
void set_min_page_size(double page_size);
void render_scroomer(Cairo::RefPtr<Cairo::Context>);
NoteName get_note_name (int note);
Gtk::Adjustment& _adj;
PianoRollHeader(const PianoRollHeader&);
enum ItemType {
BLACK_SEPARATOR,
BLACK_MIDDLE_SEPARATOR,
BLACK,
WHITE_SEPARATOR,
WHITE_RECT,
WHITE_CF,
WHITE_EB,
WHITE_DGA
};
void invalidate_note_range(int lowest, int highest);
void get_path(int note, double x[], double y[]);
void send_note_on(uint8_t note);
void send_note_off(uint8_t note);
void reset_clicked_note(uint8_t, bool invalidate = true);
MidiStreamView& _view;
uint8_t _event[3];
Glib::RefPtr<Pango::Layout> _layout;
Glib::RefPtr<Pango::Layout> _big_c_layout;
Glib::RefPtr<Pango::Layout> _midnam_layout;
Pango::FontDescription _font_descript;
Pango::FontDescription _font_descript_big_c;
Pango::FontDescription _font_descript_midnam;
bool _active_notes[128];
uint8_t _highlighted_note;
uint8_t _clicked_note;
double _grab_y;
bool _dragging;
double _scroomer_size;
bool _scroomer_drag;
double _old_y;
double _fract;
double _fract_top;
double _raw_note_height;
double _min_page_size;
enum scr_pos {TOP, BOTTOM, MOVE, NONE};
scr_pos _scroomer_state;
scr_pos _scroomer_button_state;
double _saved_top_val;
double _saved_bottom_val;
bool _mini_map_display;
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bool entered;
double _note_height;
double _old_av_note_height;
PublicEditor& editor() const;
bool show_scroomer () const;
};
#endif /* __ardour_piano_roll_header_h__ */