From c0c1fd8b604d396cd6c1cd1a709597607e2625ce Mon Sep 17 00:00:00 2001 From: Robin Gareus Date: Fri, 25 Oct 2019 18:01:08 +0200 Subject: Rename PianoKeyboard class, avoid ambiguities A C++ class "PianoKeyboard" in the global namespace may cause issues with some plugins that export and use an identically named symbol. --- gtk2_ardour/pianokeyboard.h | 145 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 145 insertions(+) create mode 100644 gtk2_ardour/pianokeyboard.h (limited to 'gtk2_ardour/pianokeyboard.h') diff --git a/gtk2_ardour/pianokeyboard.h b/gtk2_ardour/pianokeyboard.h new file mode 100644 index 0000000000..bcf9c0e1b4 --- /dev/null +++ b/gtk2_ardour/pianokeyboard.h @@ -0,0 +1,145 @@ +/* + * Copyright (C) 2010-2016 Paul Davis + * Copyright (C) 2014-2019 Robin Gareus + * + * 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 _PIANO_KEYBOARD_H_ +#define _PIANO_KEYBOARD_H_ + +#include +#include + +#define NNOTES (128) + +class APianoKeyboard : public Gtk::DrawingArea +{ +public: + APianoKeyboard (); + ~APianoKeyboard (); + + sigc::signal NoteOn; + sigc::signal NoteOff; + sigc::signal Rest; + + enum Layout { + QWERTY, + QWERTZ, + AZERTY, + DVORAK + }; + + void sustain_press (); + void sustain_release (); + + void set_note_on (int note); + void set_note_off (int note); + + void set_keyboard_cue (bool enabled); + void set_grand_piano_highlight (bool enabled); + void show_note_label (bool enabled); + + void set_monophonic (bool monophonic); + void set_octave (int octave); + void set_octave_range (int octave_range); + void set_keyboard_layout (Layout layout); + void set_velocities (int min_vel, int max_vel, int key_vel); + +protected: + bool on_key_press_event (GdkEventKey*); + bool on_key_release_event (GdkEventKey*); + bool on_button_press_event (GdkEventButton*); + bool on_button_release_event (GdkEventButton*); + bool on_motion_notify_event (GdkEventMotion*); + bool on_expose_event (GdkEventExpose*); + + void on_size_request (Gtk::Requisition*); + void on_size_allocate (Gtk::Allocation&); + +private: + void annotate_layout (cairo_t* cr, int note) const; + void annotate_note (cairo_t* cr, int note) const; + void draw_note (cairo_t* cr, int note) const; + + void queue_note_draw (int note); + + void press_key (int key, int vel); + void release_key (int key); + void stop_sustained_notes (); + void stop_unsustained_notes (); + + int key_binding (const char* key) const; + void bind_key (const char* key, int note); + void clear_notes (); + + void bind_keys_qwerty (); + void bind_keys_qwertz (); + void bind_keys_azerty (); + void bind_keys_dvorak (); + + int get_note_for_xy (int x, int y) const; + int get_velocity_for_note_at_y (int note, int y) const; + + int is_black (int key) const; + double black_key_left_shift (int key) const; + + void recompute_dimensions (); + + struct PKNote { + PKNote () + : pressed (false) + , sustained (false) + , white (false) + , x (0) + , w (0) + , h (0) + {} + + bool pressed; /* true if key is in pressed down state. */ + bool sustained; /* true if note is sustained. */ + bool white; /* true if key is white; 0 otherwise. */ + int x; /* Distance between the left edge of the key and the left edge of the widget, in pixels. */ + int w; /* Width of the key, in pixels. */ + int h; /* Height of the key, in pixels. */ + }; + + bool _maybe_stop_sustained_notes; + bool _sustain_new_notes; + bool _enable_keyboard_cue; + bool _highlight_grand_piano_range; + bool _print_note_label; + int _octave; + int _octave_range; + int _note_being_pressed_using_mouse; + int _min_note; + int _max_note; + int _last_key; + bool _monophonic; + int _min_velocity; + int _max_velocity; + int _key_velocity; + + PKNote _notes[NNOTES]; + + std::map _key_bindings; /**< Table used to translate from PC keyboard character to MIDI note number. */ + std::map _note_bindings; /**< Table to translate from MIDI note number to PC keyboard character. */ + + /* these are only valid during expose/draw */ + PangoFontDescription* _font_cue; + PangoFontDescription* _font_octave; +}; + +#endif -- cgit v1.2.3