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.

1 files changed, 0 insertions, 998 deletions

diff --git a/gtk2_ardour/gtk_pianokeyboard.cc b/gtk2_ardour/gtk_pianokeyboard.cc
deleted file mode 100644
index 9646e774a2..0000000000
--- a/gtk2_ardour/gtk_pianokeyboard.cc
+++ /dev/null
@@ -1,998 +0,0 @@
-/*-
- * Copyright (c) 2007, 2008 Edward Tomasz Napierała <trasz@FreeBSD.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/*
- * This is piano_keyboard, piano keyboard-like GTK+ widget.  It contains
- * no MIDI-specific code.
- *
- * For questions and comments, contact Edward Tomasz Napierala <trasz@FreeBSD.org>.
- */
-
-#include <assert.h>
-#include <math.h>
-#include <stdint.h>
-#include <string.h>
-
-#include <cairo/cairo.h>
-#include <pango/pango.h>
-#include <pango/pangocairo.h>
-
-#include <gdk/gdkkeysyms.h>
-#include <gtk/gtk.h>
-
-#include "gtk_pianokeyboard.h"
-
-#ifndef M_PI
-#  define M_PI 3.14159265358979323846
-#endif
-
-#ifndef MIN
-#  define MIN(A, B) ((A) < (B)) ? (A) : (B)
-#endif
-
-#ifndef MAX
-#  define MAX(A, B) ((A) > (B)) ? (A) : (B)
-#endif
-
-#define PIANO_KEYBOARD_DEFAULT_WIDTH 730
-#define PIANO_KEYBOARD_DEFAULT_HEIGHT 70
-
-#define PIANO_MIN_NOTE 21
-#define PIANO_MAX_NOTE 108
-#define OCTAVE_MIN (-1)
-#define OCTAVE_MAX (7)
-
-void
-PianoKeyboard::annotate_layout (cairo_t* cr, int note) const
-{
-	int nkey = note - _octave * 12;
-
-	if (nkey < 0 || nkey >= NNOTES) {
-		return;
-	}
-	if (_note_bindings.find (nkey) == _note_bindings.end ()) {
-		return;
-	}
-
-	int x = _notes[note].x;
-	int w = _notes[note].w;
-	int h = _notes[note].h;
-
-	int  tw, th;
-	char buf[32];
-	snprintf (buf, 16, "%lc",
-			gdk_keyval_to_unicode (gdk_keyval_to_upper (gdk_keyval_from_name (_note_bindings.at(nkey).c_str ()))));
-	PangoLayout* pl = pango_cairo_create_layout (cr);
-	pango_layout_set_font_description (pl, _font_cue);
-	pango_layout_set_text (pl, buf, -1);
-	pango_layout_set_alignment (pl, PANGO_ALIGN_LEFT);
-	pango_layout_get_pixel_size (pl, &tw, &th);
-
-	if (_notes[note].white) {
-		cairo_set_source_rgba (cr, 0.0, 0.0, 0.5, 1.0);
-	} else {
-		cairo_set_source_rgba (cr, 1.0, 1.0, 0.5, 1.0);
-	}
-
-	if (tw < w) {
-		cairo_save (cr);
-		if (_notes[note].white) {
-			cairo_move_to (cr, x + (w - tw) / 2, h * 2 / 3 + 3);
-		} else {
-			cairo_move_to (cr, x + (w - tw) / 2, h - th - 3);
-		}
-		pango_cairo_show_layout (cr, pl);
-		cairo_restore (cr);
-	}
-	g_object_unref (pl);
-}
-
-void
-PianoKeyboard::annotate_note (cairo_t* cr, int note) const
-{
-	assert ((note % 12) == 0);
-
-	int x = _notes[note].x;
-	int w = _notes[note].w;
-	int h = _notes[note].h;
-
-	int  tw, th;
-	char buf[32];
-	sprintf (buf, "C%2d", (note / 12) - 1);
-	PangoLayout* pl = pango_cairo_create_layout (cr);
-	pango_layout_set_font_description (pl, _font_octave);
-	pango_layout_set_text (pl, buf, -1);
-	pango_layout_set_alignment (pl, PANGO_ALIGN_LEFT);
-	pango_layout_get_pixel_size (pl, &tw, &th);
-
-	if (th < w && tw < h * .3) {
-		cairo_save (cr);
-		cairo_move_to (cr, x + (w - th) / 2, h - 3);
-		cairo_rotate (cr, M_PI / -2.0);
-
-		cairo_set_line_width (cr, 1.0);
-		cairo_set_source_rgba (cr, 0, 0, 0, 1.0);
-		pango_cairo_show_layout (cr, pl);
-
-#if 0
-		cairo_rel_move_to (cr, -.5, -.5);
-		pango_cairo_update_layout (cr, pl);
-		cairo_set_source_rgba (cr, 1, 1, 1, 0.3);
-		pango_cairo_layout_path (cr, pl);
-		cairo_set_line_width (cr, 1.5);
-		cairo_stroke (cr);
-#endif
-
-		cairo_restore (cr);
-	}
-	g_object_unref (pl);
-}
-
-void
-PianoKeyboard::draw_note (cairo_t* cr, int note) const
-{
-	if (note < _min_note || note > _max_note) {
-		return;
-	}
-
-	int is_white = _notes[note].white;
-	int x        = _notes[note].x;
-	int w        = _notes[note].w;
-	int h        = _notes[note].h;
-
-	if (_notes[note].pressed || _notes[note].sustained) {
-		if (is_white) {
-			cairo_set_source_rgb (cr, 0.7, 0.5, 0.5);
-		} else {
-			cairo_set_source_rgb (cr, 0.6, 0.4, 0.4);
-		}
-	} else if (_highlight_grand_piano_range && (note < PIANO_MIN_NOTE || note > PIANO_MAX_NOTE)) {
-		if (is_white) {
-			cairo_set_source_rgb (cr, 0.7, 0.7, 0.7);
-		} else {
-			cairo_set_source_rgb (cr, 0.3, 0.3, 0.3);
-		}
-	} else {
-		if (is_white) {
-			cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
-		} else {
-			cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
-		}
-	}
-
-	cairo_set_line_width (cr, 1.0);
-
-	cairo_rectangle (cr, x, 0, w, h);
-	cairo_fill (cr);
-
-	cairo_set_source_rgb (cr, 0.0f, 0.0f, 0.0f); /* black outline */
-	cairo_rectangle (cr, x, 0, w, h);
-	cairo_stroke (cr);
-
-	if (_print_note_label && (note % 12) == 0) {
-		annotate_note (cr, note);
-	}
-
-	if (_enable_keyboard_cue) {
-		annotate_layout (cr, note);
-	}
-
-	/* We need to redraw black keys that partially obscure the white one. */
-	if (note < NNOTES - 2 && !_notes[note + 1].white) {
-		draw_note (cr, note + 1);
-	}
-
-	if (note > 0 && !_notes[note - 1].white) {
-		draw_note (cr, note - 1);
-	}
-}
-
-void
-PianoKeyboard::queue_note_draw (int note)
-{
-	queue_draw_area (_notes[note].x, 0, _notes[note].w, _notes[note].h);
-}
-
-void
-PianoKeyboard::press_key (int key, int vel)
-{
-	assert (key >= 0);
-	assert (key < NNOTES);
-
-	_maybe_stop_sustained_notes = false;
-
-	/* This is for keyboard autorepeat protection. */
-	if (_notes[key].pressed) {
-		return;
-	}
-
-	if (_sustain_new_notes) {
-		_notes[key].sustained = true;
-	} else {
-		_notes[key].sustained = false;
-	}
-
-	if (_monophonic && _last_key != key) {
-		bool signal_off = _notes[_last_key].pressed || _notes[_last_key].sustained;
-		_notes[_last_key].pressed = false;
-		_notes[_last_key].sustained = false;
-		if (signal_off) {
-			NoteOff (_last_key); /* EMIT SIGNAL */
-		}
-		queue_note_draw (_last_key);
-	}
-	_last_key = key;
-
-	_notes[key].pressed = true;
-
-	NoteOn (key, vel); /* EMIT SIGNAL */
-	queue_note_draw (key);
-}
-
-void
-PianoKeyboard::release_key (int key)
-{
-	assert (key >= 0);
-	assert (key < NNOTES);
-
-	_maybe_stop_sustained_notes = false;
-
-	if (!_notes[key].pressed) {
-		return;
-	}
-
-	if (_sustain_new_notes) {
-		_notes[key].sustained = true;
-	}
-
-	_notes[key].pressed = false;
-
-	if (_notes[key].sustained) {
-		return;
-	}
-
-	NoteOff (key); /* EMIT SIGNAL */
-	queue_note_draw (key);
-}
-
-void
-PianoKeyboard::stop_unsustained_notes ()
-{
-	for (int i = 0; i < NNOTES; ++i) {
-		if (_notes[i].pressed && !_notes[i].sustained) {
-			_notes[i].pressed = false;
-			NoteOff (i); /* EMIT SIGNAL */
-			queue_note_draw (i);
-		}
-	}
-}
-
-void
-PianoKeyboard::stop_sustained_notes ()
-{
-	for (int i = 0; i < NNOTES; ++i) {
-		if (_notes[i].sustained) {
-			_notes[i].pressed   = false;
-			_notes[i].sustained = false;
-			NoteOff (i); /* EMIT SIGNAL */
-			queue_note_draw (i);
-		}
-	}
-}
-
-int
-PianoKeyboard::key_binding (const char* key) const
-{
-	if (_key_bindings.find (key) != _key_bindings.end ()) {
-		return _key_bindings.at (key);
-	}
-	return -1;
-}
-
-void
-PianoKeyboard::bind_key (const char* key, int note)
-{
-	_key_bindings[key]   = note;
-	_note_bindings[note] = key;
-}
-
-void
-PianoKeyboard::clear_notes ()
-{
-	_key_bindings.clear ();
-	_note_bindings.clear ();
-}
-
-void
-PianoKeyboard::bind_keys_qwerty ()
-{
-	clear_notes ();
-
-	bind_key ("space", 128);
-
-	/* Lower keyboard row - "zxcvbnm". */
-	bind_key ("z", 12); /* C0 */
-	bind_key ("s", 13);
-	bind_key ("x", 14);
-	bind_key ("d", 15);
-	bind_key ("c", 16);
-	bind_key ("v", 17);
-	bind_key ("g", 18);
-	bind_key ("b", 19);
-	bind_key ("h", 20);
-	bind_key ("n", 21);
-	bind_key ("j", 22);
-	bind_key ("m", 23);
-
-	/* Upper keyboard row, first octave - "qwertyu". */
-	bind_key ("q", 24);
-	bind_key ("2", 25);
-	bind_key ("w", 26);
-	bind_key ("3", 27);
-	bind_key ("e", 28);
-	bind_key ("r", 29);
-	bind_key ("5", 30);
-	bind_key ("t", 31);
-	bind_key ("6", 32);
-	bind_key ("y", 33);
-	bind_key ("7", 34);
-	bind_key ("u", 35);
-
-	/* Upper keyboard row, the rest - "iop". */
-	bind_key ("i", 36);
-	bind_key ("9", 37);
-	bind_key ("o", 38);
-	bind_key ("0", 39);
-	bind_key ("p", 40);
-}
-
-void
-PianoKeyboard::bind_keys_qwertz ()
-{
-	bind_keys_qwerty ();
-
-	/* The only difference between QWERTY and QWERTZ is that the "y" and "z" are swapped together. */
-	bind_key ("y", 12);
-	bind_key ("z", 33);
-}
-
-void
-PianoKeyboard::bind_keys_azerty ()
-{
-	clear_notes ();
-
-	bind_key ("space", 128);
-
-	/* Lower keyboard row - "wxcvbn,". */
-	bind_key ("w", 12); /* C0 */
-	bind_key ("s", 13);
-	bind_key ("x", 14);
-	bind_key ("d", 15);
-	bind_key ("c", 16);
-	bind_key ("v", 17);
-	bind_key ("g", 18);
-	bind_key ("b", 19);
-	bind_key ("h", 20);
-	bind_key ("n", 21);
-	bind_key ("j", 22);
-	bind_key ("comma", 23);
-
-	/* Upper keyboard row, first octave - "azertyu". */
-	bind_key ("a", 24);
-	bind_key ("eacute", 25);
-	bind_key ("z", 26);
-	bind_key ("quotedbl", 27);
-	bind_key ("e", 28);
-	bind_key ("r", 29);
-	bind_key ("parenleft", 30);
-	bind_key ("t", 31);
-	bind_key ("minus", 32);
-	bind_key ("y", 33);
-	bind_key ("egrave", 34);
-	bind_key ("u", 35);
-
-	/* Upper keyboard row, the rest - "iop". */
-	bind_key ("i", 36);
-	bind_key ("ccedilla", 37);
-	bind_key ("o", 38);
-	bind_key ("agrave", 39);
-	bind_key ("p", 40);
-}
-
-void
-PianoKeyboard::bind_keys_dvorak ()
-{
-	clear_notes ();
-
-	bind_key ("space", 128);
-
-	/* Lower keyboard row - ";qjkxbm". */
-	bind_key ("semicolon", 12); /* C0 */
-	bind_key ("o", 13);
-	bind_key ("q", 14);
-	bind_key ("e", 15);
-	bind_key ("j", 16);
-	bind_key ("k", 17);
-	bind_key ("i", 18);
-	bind_key ("x", 19);
-	bind_key ("d", 20);
-	bind_key ("b", 21);
-	bind_key ("h", 22);
-	bind_key ("m", 23);
-	bind_key ("w", 24); /* overlaps with upper row */
-	bind_key ("n", 25);
-	bind_key ("v", 26);
-	bind_key ("s", 27);
-	bind_key ("z", 28);
-
-	/* Upper keyboard row, first octave - "',.pyfg". */
-	bind_key ("apostrophe", 24);
-	bind_key ("2", 25);
-	bind_key ("comma", 26);
-	bind_key ("3", 27);
-	bind_key ("period", 28);
-	bind_key ("p", 29);
-	bind_key ("5", 30);
-	bind_key ("y", 31);
-	bind_key ("6", 32);
-	bind_key ("f", 33);
-	bind_key ("7", 34);
-	bind_key ("g", 35);
-
-	/* Upper keyboard row, the rest - "crl". */
-	bind_key ("c", 36);
-	bind_key ("9", 37);
-	bind_key ("r", 38);
-	bind_key ("0", 39);
-	bind_key ("l", 40);
-#if 0
-	bind_key("slash", 41); /* extra F */
-	bind_key("bracketright", 42);
-	bind_key("equal", 43);
-#endif
-}
-
-bool
-PianoKeyboard::on_key_press_event (GdkEventKey* event)
-{
-	int   note;
-	char* key;
-	guint keyval;
-
-	GdkKeymapKey kk;
-
-	/* We're not using event->keyval, because we need keyval with level set to 0.
-	   E.g. if user holds Shift and presses '7', we want to get a '7', not '&'. */
-	kk.keycode = event->hardware_keycode;
-	kk.level   = 0;
-	kk.group   = 0;
-
-	keyval = gdk_keymap_lookup_key (NULL, &kk);
-
-	key = gdk_keyval_name (gdk_keyval_to_lower (keyval));
-
-	if (key == NULL) {
-		g_message ("gtk_keyval_name() returned NULL; please report this.");
-		return false;
-	}
-
-	note = key_binding (key);
-
-	if (note < 0) {
-		return false;
-	}
-
-	if (note == 128) {
-		if (event->type == GDK_KEY_RELEASE) {
-			Rest (); /* EMIT SIGNAL */
-		}
-
-		return true;
-	}
-
-	note += _octave * 12;
-
-	assert (note >= 0);
-	assert (note < NNOTES);
-
-	if (event->type == GDK_KEY_PRESS) {
-		press_key (note, _key_velocity);
-	} else if (event->type == GDK_KEY_RELEASE) {
-		release_key (note);
-	}
-
-	return true;
-}
-
-bool
-PianoKeyboard::on_key_release_event (GdkEventKey* event)
-{
-	return on_key_press_event (event);
-}
-
-int
-PianoKeyboard::get_note_for_xy (int x, int y) const
-{
-	int height = get_height ();
-	int note;
-
-	if (y <= ((height * 2) / 3)) { /* might be a black key */
-		for (note = 0; note <= _max_note; ++note) {
-			if (_notes[note].white) {
-				continue;
-			}
-
-			if (x >= _notes[note].x && x <= _notes[note].x + _notes[note].w) {
-				return note;
-			}
-		}
-	}
-
-	for (note = 0; note <= _max_note; ++note) {
-		if (!_notes[note].white) {
-			continue;
-		}
-
-		if (x >= _notes[note].x && x <= _notes[note].x + _notes[note].w) {
-			return note;
-		}
-	}
-
-	return -1;
-}
-
-int
-PianoKeyboard::get_velocity_for_note_at_y (int note, int y) const
-{
-	if (note < 0) {
-		return 0;
-	}
-	int vel = _min_velocity + (_max_velocity - _min_velocity) * y / _notes[note].h;
-
-	if (vel < 1) {
-		return 1;
-	} else if (vel > 127) {
-		return 127;
-	}
-	return vel;
-}
-
-bool
-PianoKeyboard::on_button_press_event (GdkEventButton* event)
-{
-	int x = event->x;
-	int y = event->y;
-
-	int note = get_note_for_xy (x, y);
-
-	if (event->button != 1)
-		return true;
-
-	if (event->type == GDK_BUTTON_PRESS) {
-		if (note < 0) {
-			return true;
-		}
-
-		if (_note_being_pressed_using_mouse >= 0) {
-			release_key (_note_being_pressed_using_mouse);
-		}
-
-		press_key (note, get_velocity_for_note_at_y (note, y));
-		_note_being_pressed_using_mouse = note;
-
-	} else if (event->type == GDK_BUTTON_RELEASE) {
-		if (note >= 0) {
-			release_key (note);
-		} else {
-			if (_note_being_pressed_using_mouse >= 0) {
-				release_key (_note_being_pressed_using_mouse);
-			}
-		}
-		_note_being_pressed_using_mouse = -1;
-	}
-
-	return true;
-}
-
-bool
-PianoKeyboard::on_button_release_event (GdkEventButton* event)
-{
-	return on_button_press_event (event);
-}
-
-bool
-PianoKeyboard::on_motion_notify_event (GdkEventMotion* event)
-{
-	int note;
-
-	if ((event->state & GDK_BUTTON1_MASK) == 0)
-		return true;
-
-	int x = event->x;
-	int y = event->y;
-
-	note = get_note_for_xy (x, y);
-
-	if (note != _note_being_pressed_using_mouse && note >= 0) {
-		if (_note_being_pressed_using_mouse >= 0) {
-			release_key (_note_being_pressed_using_mouse);
-		}
-		press_key (note, get_velocity_for_note_at_y (note, y));
-		_note_being_pressed_using_mouse = note;
-	}
-
-	return true;
-}
-
-bool
-PianoKeyboard::on_expose_event (GdkEventExpose* event)
-{
-	cairo_t* cr = gdk_cairo_create (GDK_DRAWABLE (get_window ()->gobj ()));
-	cairo_rectangle (cr, event->area.x, event->area.y, event->area.width, event->area.height);
-	cairo_clip (cr);
-
-	char buf[32];
-	sprintf (buf, "ArdourMono %dpx", MAX (8, MIN (20, _notes[1].w / 2 + 3)));
-	_font_cue = pango_font_description_from_string (buf);
-	sprintf (buf, "ArdourMono %dpx", MAX (10, MIN (20, MIN (_notes[0].w / 2 + 3, _notes[0].h / 7))));
-	_font_octave = pango_font_description_from_string (buf);
-
-	for (int i = 0; i < NNOTES; ++i) {
-		GdkRectangle r;
-
-		r.x      = _notes[i].x;
-		r.y      = 0;
-		r.width  = _notes[i].w;
-		r.height = _notes[i].h;
-
-		switch (gdk_region_rect_in (event->region, &r)) {
-			case GDK_OVERLAP_RECTANGLE_PART:
-			case GDK_OVERLAP_RECTANGLE_IN:
-				draw_note (cr, i);
-				break;
-			default:
-				break;
-		}
-	}
-
-	pango_font_description_free (_font_cue);
-	pango_font_description_free (_font_octave);
-
-	cairo_destroy (cr);
-	return true;
-}
-
-void
-PianoKeyboard::on_size_request (Gtk::Requisition* requisition)
-{
-	requisition->width  = PIANO_KEYBOARD_DEFAULT_WIDTH;
-	requisition->height = PIANO_KEYBOARD_DEFAULT_HEIGHT;
-}
-
-int
-PianoKeyboard::is_black (int key) const
-{
-	int note_in_octave = key % 12;
-	switch (note_in_octave) {
-		case 1:
-		case 3:
-		case 6:
-		case 8:
-		case 10:
-			return 1;
-		default:
-			return 0;
-	}
-	return 0;
-}
-
-double
-PianoKeyboard::black_key_left_shift (int key) const
-{
-	int note_in_octave = key % 12;
-	switch (note_in_octave) {
-		case 1:
-			return 2.0 / 3.0;
-		case 3:
-			return 1.0 / 3.0;
-		case 6:
-			return 2.0 / 3.0;
-		case 8:
-			return 0.5;
-		case 10:
-			return 1.0 / 3.0;
-		default:
-			return 0;
-	}
-	return 0;
-}
-
-void
-PianoKeyboard::recompute_dimensions ()
-{
-	int note;
-	int number_of_white_keys = 0;
-	int skipped_white_keys   = 0;
-
-	for (note = _min_note; note <= _max_note; ++note) {
-		if (!is_black (note)) {
-			++number_of_white_keys;
-		}
-	}
-	for (note = 0; note < _min_note; ++note) {
-		if (!is_black (note)) {
-			++skipped_white_keys;
-		}
-	}
-
-	int width  = get_width ();
-	int height = get_height ();
-
-	int key_width       = width / number_of_white_keys;
-	int black_key_width = key_width * 0.8;
-	int useful_width    = number_of_white_keys * key_width;
-
-	int widget_margin = (width - useful_width) / 2;
-
-	int white_key;
-	for (note = 0, white_key = -skipped_white_keys; note < NNOTES; ++note) {
-		if (is_black (note)) {
-			/* This note is black key. */
-			_notes[note].x = widget_margin +
-			                 (white_key * key_width) -
-			                 (black_key_width * black_key_left_shift (note));
-			_notes[note].w     = black_key_width;
-			_notes[note].h     = (height * 2) / 3;
-			_notes[note].white = 0;
-			continue;
-		}
-
-		/* This note is white key. */
-		_notes[note].x     = widget_margin + white_key * key_width;
-		_notes[note].w     = key_width;
-		_notes[note].h     = height;
-		_notes[note].white = 1;
-
-		white_key++;
-	}
-}
-
-void
-PianoKeyboard::on_size_allocate (Gtk::Allocation& allocation)
-{
-	DrawingArea::on_size_allocate (allocation);
-	recompute_dimensions ();
-}
-
-PianoKeyboard::PianoKeyboard ()
-{
-	using namespace Gdk;
-	add_events (KEY_PRESS_MASK | KEY_RELEASE_MASK | BUTTON_PRESS_MASK | BUTTON_RELEASE_MASK | POINTER_MOTION_MASK | POINTER_MOTION_HINT_MASK);
-
-	_maybe_stop_sustained_notes     = false;
-	_sustain_new_notes              = false;
-	_enable_keyboard_cue            = false;
-	_highlight_grand_piano_range    = false;
-	_print_note_label               = false;
-	_octave                         = 4;
-	_octave_range                   = 7;
-	_note_being_pressed_using_mouse = -1;
-	_min_note                       = 0;
-	_max_note                       = 127;
-	_last_key                       = 0;
-	_monophonic                     = false;
-
-	_min_velocity = 1;
-	_max_velocity = 127;
-	_key_velocity = 100;
-
-	bind_keys_qwerty ();
-}
-
-PianoKeyboard::~PianoKeyboard ()
-{
-}
-
-void
-PianoKeyboard::set_keyboard_cue (bool enabled)
-{
-	_enable_keyboard_cue = enabled;
-	queue_draw ();
-}
-
-void
-PianoKeyboard::set_grand_piano_highlight (bool enabled)
-{
-	_highlight_grand_piano_range = enabled;
-	queue_draw ();
-}
-
-void
-PianoKeyboard::show_note_label (bool enabled)
-{
-	_print_note_label = enabled;
-	queue_draw ();
-}
-
-void
-PianoKeyboard::set_monophonic (bool monophonic)
-{
-
-	_monophonic = monophonic;
-}
-
-void
-PianoKeyboard::set_velocities (int min_vel, int max_vel, int key_vel)
-{
-	if (min_vel <= max_vel && min_vel > 0 && max_vel < 128) {
-		_min_velocity = min_vel;
-		_max_velocity = max_vel;
-	}
-
-	if (key_vel > 0 && key_vel < 128) {
-		_key_velocity = key_vel;
-	}
-}
-
-void
-PianoKeyboard::sustain_press ()
-{
-	if (!_sustain_new_notes) {
-		_sustain_new_notes          = true;
-		_maybe_stop_sustained_notes = true;
-	}
-}
-
-void
-PianoKeyboard::sustain_release ()
-{
-	if (_maybe_stop_sustained_notes) {
-		stop_sustained_notes ();
-	}
-	_sustain_new_notes = false;
-}
-
-void
-PianoKeyboard::set_note_on (int note)
-{
-	if (!_notes[note].pressed) {
-		_notes[note].pressed = true;
-		queue_note_draw (note);
-	}
-}
-
-void
-PianoKeyboard::set_note_off (int note)
-{
-	if (_notes[note].pressed || _notes[note].sustained) {
-		_notes[note].pressed   = false;
-		_notes[note].sustained = false;
-		queue_note_draw (note);
-	}
-}
-
-void
-PianoKeyboard::set_octave (int octave)
-{
-	stop_unsustained_notes ();
-
-	if (octave < -1) {
-		octave = -1;
-	} else if (octave > 7) {
-		octave = 7;
-	}
-
-	_octave = octave;
-	set_octave_range (_octave_range);
-}
-
-void
-PianoKeyboard::set_octave_range (int octave_range)
-{
-	stop_unsustained_notes ();
-
-	if (octave_range < 2) {
-		octave_range = 2;
-	}
-	if (octave_range > 11) {
-		octave_range = 11;
-	}
-
-	_octave_range = octave_range;
-
-	/* -1 <= _octave <= 7
-	 * key-bindings are at offset 12 .. 40
-	 * default piano range: _octave = 4, range = 7 -> note 21..108
-	 */
-
-	switch (_octave_range) {
-		default:
-			assert (0);
-			break;
-		case 2:
-		case 3:
-			_min_note = (_octave + 1) * 12;
-			break;
-		case 4:
-		case 5:
-			_min_note = (_octave + 0) * 12;
-			break;
-		case 6:
-			_min_note = (_octave - 1) * 12;
-			break;
-		case 7:
-		case 8:
-			_min_note = (_octave - 2) * 12;
-			break;
-		case 9:
-		case 10:
-			_min_note = (_octave - 3) * 12;
-			break;
-		case 11:
-			_min_note = (_octave - 4) * 12;
-			break;
-	}
-
-	int upper_offset = 0;
-
-	if (_min_note < 3) {
-		upper_offset = 0;
-		_min_note    = 0;
-	} else if (_octave_range > 5) {
-		/* extend down to A */
-		upper_offset = 3;
-		_min_note -= 3;
-	}
-
-	_max_note = MIN (127, upper_offset + _min_note + _octave_range * 12);
-
-	if (_max_note == 127) {
-		_min_note = MAX (0, _max_note - _octave_range * 12);
-	}
-
-	recompute_dimensions ();
-	queue_draw ();
-}
-
-void
-PianoKeyboard::set_keyboard_layout (Layout layout)
-{
-	switch (layout) {
-		case QWERTY:
-			bind_keys_qwerty ();
-			break;
-		case QWERTZ:
-			bind_keys_qwertz ();
-			break;
-		case AZERTY:
-			bind_keys_azerty ();
-			break;
-		case DVORAK:
-			bind_keys_dvorak ();
-			break;
-	}
-	queue_draw ();
-}