751 lines
17 KiB
C
751 lines
17 KiB
C
/*-
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* Copyright (c) 2007, 2008 Edward Tomasz Napiera<72>Å‚a <trasz@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* This is piano_keyboard, piano keyboard-like GTK+ widget. It contains
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* no MIDI-specific code.
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*
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* For questions and comments, contact Edward Tomasz Napierala <trasz@FreeBSD.org>.
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*/
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#include <assert.h>
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#include <string.h>
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#include <stdint.h>
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#include <cairo/cairo.h>
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#include <gtk/gtk.h>
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#include <gdk/gdkkeysyms.h>
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#include "gtk_pianokeyboard.h"
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#define PIANO_KEYBOARD_DEFAULT_WIDTH 730
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#define PIANO_KEYBOARD_DEFAULT_HEIGHT 70
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enum {
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NOTE_ON_SIGNAL,
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NOTE_OFF_SIGNAL,
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REST_SIGNAL,
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LAST_SIGNAL
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};
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static guint piano_keyboard_signals[LAST_SIGNAL] = { 0 };
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static void
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draw_keyboard_cue(PianoKeyboard *pk, cairo_t* cr)
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{
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int w = pk->notes[0].w;
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int h = pk->notes[0].h;
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int first_note_in_lower_row = (pk->octave + 5) * 12;
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int last_note_in_lower_row = (pk->octave + 6) * 12 - 1;
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int first_note_in_higher_row = (pk->octave + 6) * 12;
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int last_note_in_higher_row = (pk->octave + 7) * 12 + 4;
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cairo_set_source_rgb (cr, 1.0f, 0.0f, 0.0f);
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cairo_move_to (cr, pk->notes[first_note_in_lower_row].x + 3, h - 6);
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cairo_line_to (cr, pk->notes[last_note_in_lower_row].x + w - 3, h - 6);
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cairo_stroke (cr);
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cairo_set_source_rgb (cr, 0.0f, 0.0f, 1.0f);
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cairo_move_to (cr, pk->notes[first_note_in_higher_row].x + 3, h - 9);
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cairo_line_to (cr, pk->notes[last_note_in_higher_row].x + w - 3, h - 9);
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cairo_stroke (cr);
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}
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static void
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queue_note_draw (PianoKeyboard* pk, int note)
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{
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GdkWindow* w = GTK_WIDGET(pk)->window;
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if (w) {
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GdkRectangle r;
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r.x = pk->notes[note].x;
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r.y = 0;
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r.width = pk->notes[note].w;
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r.height = pk->notes[note].h;
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gdk_window_invalidate_rect (w, &r, TRUE);
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}
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}
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static void
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draw_note(PianoKeyboard *pk, cairo_t* cr, int note)
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{
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int is_white = pk->notes[note].white;
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int x = pk->notes[note].x;
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int w = pk->notes[note].w;
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int h = pk->notes[note].h;
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if (pk->notes[note].pressed || pk->notes[note].sustained) {
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if (is_white) {
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cairo_set_source_rgb (cr, 0.60f, 0.60f, 0.60f);
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} else {
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cairo_set_source_rgb (cr, 0.50f, 0.50f, 0.50f);
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}
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} else {
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if (is_white) {
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cairo_set_source_rgb (cr, 1.0f, 1.0f, 1.0f);
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} else {
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cairo_set_source_rgb (cr, 0.0f, 0.0f, 0.0f);
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}
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}
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cairo_set_line_width (cr, 1.0);
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cairo_rectangle (cr, x, 0, w, h);
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cairo_fill (cr);
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cairo_set_source_rgb(cr, 0.0f, 0.0f, 0.0f); /* black outline */
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cairo_rectangle (cr, x, 0, w, h);
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cairo_stroke (cr);
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if (pk->enable_keyboard_cue) {
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draw_keyboard_cue (pk, cr);
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}
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/* We need to redraw black keys that partially obscure the white one. */
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if (note < NNOTES - 2 && !pk->notes[note + 1].white) {
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draw_note(pk, cr, note + 1);
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}
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if (note > 0 && !pk->notes[note - 1].white) {
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draw_note(pk, cr, note - 1);
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}
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}
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static int
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press_key(PianoKeyboard *pk, int key)
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{
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assert(key >= 0);
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assert(key < NNOTES);
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pk->maybe_stop_sustained_notes = 0;
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/* This is for keyboard autorepeat protection. */
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if (pk->notes[key].pressed)
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return 0;
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if (pk->sustain_new_notes)
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pk->notes[key].sustained = 1;
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else
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pk->notes[key].sustained = 0;
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pk->notes[key].pressed = 1;
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g_signal_emit_by_name(GTK_WIDGET(pk), "note-on", key);
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queue_note_draw(pk, key);
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return 1;
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}
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static int
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release_key(PianoKeyboard *pk, int key)
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{
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assert(key >= 0);
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assert(key < NNOTES);
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pk->maybe_stop_sustained_notes = 0;
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if (!pk->notes[key].pressed)
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return 0;
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if (pk->sustain_new_notes)
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pk->notes[key].sustained = 1;
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pk->notes[key].pressed = 0;
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if (pk->notes[key].sustained)
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return 0;
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g_signal_emit_by_name(GTK_WIDGET(pk), "note-off", key);
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queue_note_draw(pk, key);
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return 1;
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}
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static void
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rest (PianoKeyboard* pk)
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{
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g_signal_emit_by_name(GTK_WIDGET(pk), "rest");
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}
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static void
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stop_unsustained_notes(PianoKeyboard *pk)
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{
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int i;
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for (i = 0; i < NNOTES; i++) {
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if (pk->notes[i].pressed && !pk->notes[i].sustained) {
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pk->notes[i].pressed = 0;
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g_signal_emit_by_name(GTK_WIDGET(pk), "note-off", i);
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queue_note_draw(pk, i);
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}
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}
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}
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static void
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stop_sustained_notes(PianoKeyboard *pk)
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{
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int i;
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for (i = 0; i < NNOTES; i++) {
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if (pk->notes[i].sustained) {
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pk->notes[i].pressed = 0;
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pk->notes[i].sustained = 0;
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g_signal_emit_by_name(GTK_WIDGET(pk), "note-off", i);
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queue_note_draw(pk, i);
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}
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}
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}
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static int
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key_binding(PianoKeyboard *pk, const char *key)
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{
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gpointer notused, note;
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gboolean found;
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assert(pk->key_bindings != NULL);
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found = g_hash_table_lookup_extended(pk->key_bindings, key, ¬used, ¬e);
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if (!found)
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return -1;
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return (intptr_t)note;
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}
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static void
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bind_key(PianoKeyboard *pk, const char *key, int note)
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{
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assert(pk->key_bindings != NULL);
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g_hash_table_insert(pk->key_bindings, (gpointer)key, (gpointer)((intptr_t)note));
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}
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static void
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clear_notes(PianoKeyboard *pk)
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{
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assert(pk->key_bindings != NULL);
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g_hash_table_remove_all(pk->key_bindings);
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}
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static void
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bind_keys_qwerty(PianoKeyboard *pk)
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{
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clear_notes(pk);
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bind_key(pk, "space", 128);
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/* Lower keyboard row - "zxcvbnm". */
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bind_key(pk, "z", 12); /* C0 */
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bind_key(pk, "s", 13);
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bind_key(pk, "x", 14);
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bind_key(pk, "d", 15);
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bind_key(pk, "c", 16);
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bind_key(pk, "v", 17);
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bind_key(pk, "g", 18);
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bind_key(pk, "b", 19);
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bind_key(pk, "h", 20);
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bind_key(pk, "n", 21);
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bind_key(pk, "j", 22);
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bind_key(pk, "m", 23);
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/* Upper keyboard row, first octave - "qwertyu". */
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bind_key(pk, "q", 24);
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bind_key(pk, "2", 25);
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bind_key(pk, "w", 26);
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bind_key(pk, "3", 27);
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bind_key(pk, "e", 28);
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bind_key(pk, "r", 29);
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bind_key(pk, "5", 30);
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bind_key(pk, "t", 31);
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bind_key(pk, "6", 32);
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bind_key(pk, "y", 33);
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bind_key(pk, "7", 34);
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bind_key(pk, "u", 35);
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/* Upper keyboard row, the rest - "iop". */
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bind_key(pk, "i", 36);
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bind_key(pk, "9", 37);
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bind_key(pk, "o", 38);
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bind_key(pk, "0", 39);
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bind_key(pk, "p", 40);
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}
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static void
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bind_keys_qwertz(PianoKeyboard *pk)
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{
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bind_keys_qwerty(pk);
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/* The only difference between QWERTY and QWERTZ is that the "y" and "z" are swapped together. */
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bind_key(pk, "y", 12);
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bind_key(pk, "z", 33);
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}
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static void
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bind_keys_azerty(PianoKeyboard *pk)
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{
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clear_notes(pk);
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bind_key(pk, "space", 128);
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/* Lower keyboard row - "wxcvbn,". */
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bind_key(pk, "w", 12); /* C0 */
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bind_key(pk, "s", 13);
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bind_key(pk, "x", 14);
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bind_key(pk, "d", 15);
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bind_key(pk, "c", 16);
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bind_key(pk, "v", 17);
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bind_key(pk, "g", 18);
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bind_key(pk, "b", 19);
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bind_key(pk, "h", 20);
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bind_key(pk, "n", 21);
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bind_key(pk, "j", 22);
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bind_key(pk, "comma", 23);
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/* Upper keyboard row, first octave - "azertyu". */
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bind_key(pk, "a", 24);
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bind_key(pk, "eacute", 25);
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bind_key(pk, "z", 26);
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bind_key(pk, "quotedbl", 27);
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bind_key(pk, "e", 28);
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bind_key(pk, "r", 29);
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bind_key(pk, "parenleft", 30);
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bind_key(pk, "t", 31);
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bind_key(pk, "minus", 32);
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bind_key(pk, "y", 33);
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bind_key(pk, "egrave", 34);
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bind_key(pk, "u", 35);
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/* Upper keyboard row, the rest - "iop". */
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bind_key(pk, "i", 36);
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bind_key(pk, "ccedilla", 37);
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bind_key(pk, "o", 38);
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bind_key(pk, "agrave", 39);
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bind_key(pk, "p", 40);
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}
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static gint
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keyboard_event_handler(GtkWidget *mk, GdkEventKey *event, gpointer ignored)
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{
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int note;
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char *key;
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guint keyval;
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GdkKeymapKey kk;
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PianoKeyboard *pk = PIANO_KEYBOARD(mk);
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/* We're not using event->keyval, because we need keyval with level set to 0.
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E.g. if user holds Shift and presses '7', we want to get a '7', not '&'. */
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kk.keycode = event->hardware_keycode;
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kk.level = 0;
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kk.group = 0;
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keyval = gdk_keymap_lookup_key(NULL, &kk);
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key = gdk_keyval_name(gdk_keyval_to_lower(keyval));
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if (key == NULL) {
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g_message("gtk_keyval_name() returned NULL; please report this.");
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return FALSE;
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}
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note = key_binding(pk, key);
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if (note < 0) {
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/* Key was not bound. Maybe it's one of the keys handled in jack-keyboard.c. */
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return FALSE;
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}
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if (note == 128) {
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if (event->type == GDK_KEY_RELEASE) {
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rest (pk);
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}
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return TRUE;
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}
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note += pk->octave * 12;
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assert(note >= 0);
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assert(note < NNOTES);
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if (event->type == GDK_KEY_PRESS) {
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press_key(pk, note);
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} else if (event->type == GDK_KEY_RELEASE) {
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release_key(pk, note);
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}
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return TRUE;
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}
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static int
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get_note_for_xy(PianoKeyboard *pk, int x, int y)
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{
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int height = GTK_WIDGET(pk)->allocation.height;
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int note;
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if (y <= height / 2) {
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for (note = 0; note < NNOTES - 1; note++) {
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if (pk->notes[note].white)
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continue;
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if (x >= pk->notes[note].x && x <= pk->notes[note].x + pk->notes[note].w)
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return note;
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}
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}
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for (note = 0; note < NNOTES - 1; note++) {
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if (!pk->notes[note].white)
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continue;
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if (x >= pk->notes[note].x && x <= pk->notes[note].x + pk->notes[note].w)
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return note;
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}
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return -1;
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}
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static gboolean
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mouse_button_event_handler(PianoKeyboard *pk, GdkEventButton *event, gpointer ignored)
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{
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int x = event->x;
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int y = event->y;
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int note = get_note_for_xy(pk, x, y);
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if (event->button != 1)
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return TRUE;
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if (event->type == GDK_BUTTON_PRESS) {
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/* This is possible when you make the window a little wider and then click
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on the grey area. */
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if (note < 0) {
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return TRUE;
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}
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if (pk->note_being_pressed_using_mouse >= 0)
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release_key(pk, pk->note_being_pressed_using_mouse);
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press_key(pk, note);
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pk->note_being_pressed_using_mouse = note;
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} else if (event->type == GDK_BUTTON_RELEASE) {
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if (note >= 0) {
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release_key(pk, note);
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} else {
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if (pk->note_being_pressed_using_mouse >= 0)
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release_key(pk, pk->note_being_pressed_using_mouse);
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}
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pk->note_being_pressed_using_mouse = -1;
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}
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return TRUE;
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}
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static gboolean
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mouse_motion_event_handler(PianoKeyboard *pk, GdkEventMotion *event, gpointer ignored)
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{
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int note;
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if ((event->state & GDK_BUTTON1_MASK) == 0)
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return TRUE;
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note = get_note_for_xy(pk, event->x, event->y);
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if (note != pk->note_being_pressed_using_mouse && note >= 0) {
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if (pk->note_being_pressed_using_mouse >= 0)
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release_key(pk, pk->note_being_pressed_using_mouse);
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press_key(pk, note);
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pk->note_being_pressed_using_mouse = note;
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}
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return TRUE;
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}
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static gboolean
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piano_keyboard_expose(GtkWidget *widget, GdkEventExpose *event)
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{
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int i;
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PianoKeyboard *pk = PIANO_KEYBOARD(widget);
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cairo_t* cr = gdk_cairo_create (GDK_DRAWABLE (GTK_WIDGET(pk)->window));
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gdk_cairo_region (cr, event->region);
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cairo_clip (cr);
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for (i = 0; i < NNOTES; i++) {
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GdkRectangle r;
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r.x = pk->notes[i].x;
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r.y = 0;
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r.width = pk->notes[i].w;
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r.height = pk->notes[i].h;
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switch (gdk_region_rect_in (event->region, &r)) {
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case GDK_OVERLAP_RECTANGLE_PART:
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case GDK_OVERLAP_RECTANGLE_IN:
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draw_note (pk, cr, i);
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break;
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default:
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break;
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}
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}
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||
|
||
cairo_destroy (cr);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static void
|
||
piano_keyboard_size_request(GtkWidget* w, GtkRequisition *requisition)
|
||
{
|
||
requisition->width = PIANO_KEYBOARD_DEFAULT_WIDTH;
|
||
requisition->height = PIANO_KEYBOARD_DEFAULT_HEIGHT;
|
||
}
|
||
|
||
static void
|
||
recompute_dimensions(PianoKeyboard *pk)
|
||
{
|
||
int number_of_white_keys = (NNOTES - 1) * (7.0 / 12.0);
|
||
|
||
int key_width;
|
||
int black_key_width;
|
||
int useful_width;
|
||
|
||
int note;
|
||
int white_key = 0;
|
||
int note_in_octave;
|
||
|
||
int width = GTK_WIDGET(pk)->allocation.width;
|
||
int height = GTK_WIDGET(pk)->allocation.height;
|
||
|
||
key_width = width / number_of_white_keys;
|
||
black_key_width = key_width * 0.8;
|
||
useful_width = number_of_white_keys * key_width;
|
||
pk->widget_margin = (width - useful_width) / 2;
|
||
|
||
for (note = 0, white_key = 0; note < NNOTES - 2; note++) {
|
||
note_in_octave = note % 12;
|
||
|
||
if (note_in_octave == 1 || note_in_octave == 3 || note_in_octave == 6 ||
|
||
note_in_octave == 8 || note_in_octave == 10) {
|
||
|
||
/* This note is black key. */
|
||
pk->notes[note].x = pk->widget_margin + white_key * key_width - black_key_width / 2;
|
||
pk->notes[note].w = black_key_width;
|
||
pk->notes[note].h = height / 2;
|
||
pk->notes[note].white = 0;
|
||
|
||
continue;
|
||
}
|
||
|
||
/* This note is white key. */
|
||
pk->notes[note].x = pk->widget_margin + white_key * key_width;
|
||
pk->notes[note].w = key_width;
|
||
pk->notes[note].h = height;
|
||
pk->notes[note].white = 1;
|
||
|
||
white_key++;
|
||
}
|
||
}
|
||
|
||
static void
|
||
piano_keyboard_size_allocate(GtkWidget *widget, GtkAllocation *allocation)
|
||
{
|
||
/* XXX: Are these two needed? */
|
||
g_return_if_fail(widget != NULL);
|
||
g_return_if_fail(allocation != NULL);
|
||
|
||
widget->allocation = *allocation;
|
||
|
||
recompute_dimensions(PIANO_KEYBOARD(widget));
|
||
|
||
if (GTK_WIDGET_REALIZED(widget)) {
|
||
gdk_window_move_resize (widget->window, allocation->x, allocation->y, allocation->width, allocation->height);
|
||
}
|
||
}
|
||
|
||
static void
|
||
piano_keyboard_class_init(PianoKeyboardClass *klass)
|
||
{
|
||
GtkWidgetClass *widget_klass;
|
||
|
||
/* Set up signals. */
|
||
piano_keyboard_signals[NOTE_ON_SIGNAL] = g_signal_new ("note-on",
|
||
G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
|
||
0, NULL, NULL, g_cclosure_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
|
||
|
||
piano_keyboard_signals[NOTE_OFF_SIGNAL] = g_signal_new ("note-off",
|
||
G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
|
||
0, NULL, NULL, g_cclosure_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
|
||
|
||
piano_keyboard_signals[REST_SIGNAL] = g_signal_new ("rest",
|
||
G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
|
||
0, NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
|
||
|
||
widget_klass = (GtkWidgetClass*) klass;
|
||
|
||
widget_klass->expose_event = piano_keyboard_expose;
|
||
widget_klass->size_request = piano_keyboard_size_request;
|
||
widget_klass->size_allocate = piano_keyboard_size_allocate;
|
||
}
|
||
|
||
static void
|
||
piano_keyboard_init(GtkWidget *mk)
|
||
{
|
||
gtk_widget_add_events(mk, GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK);
|
||
|
||
g_signal_connect(G_OBJECT(mk), "button-press-event", G_CALLBACK(mouse_button_event_handler), NULL);
|
||
g_signal_connect(G_OBJECT(mk), "button-release-event", G_CALLBACK(mouse_button_event_handler), NULL);
|
||
g_signal_connect(G_OBJECT(mk), "motion-notify-event", G_CALLBACK(mouse_motion_event_handler), NULL);
|
||
g_signal_connect(G_OBJECT(mk), "key-press-event", G_CALLBACK(keyboard_event_handler), NULL);
|
||
g_signal_connect(G_OBJECT(mk), "key-release-event", G_CALLBACK(keyboard_event_handler), NULL);
|
||
}
|
||
|
||
GType
|
||
piano_keyboard_get_type(void)
|
||
{
|
||
static GType mk_type = 0;
|
||
|
||
if (!mk_type) {
|
||
static const GTypeInfo mk_info = {
|
||
sizeof(PianoKeyboardClass),
|
||
NULL, /* base_init */
|
||
NULL, /* base_finalize */
|
||
(GClassInitFunc) piano_keyboard_class_init,
|
||
NULL, /* class_finalize */
|
||
NULL, /* class_data */
|
||
sizeof (PianoKeyboard),
|
||
0, /* n_preallocs */
|
||
(GInstanceInitFunc) piano_keyboard_init,
|
||
0, /* value_table */
|
||
};
|
||
|
||
mk_type = g_type_register_static(GTK_TYPE_DRAWING_AREA, "PianoKeyboard", &mk_info, 0);
|
||
}
|
||
|
||
return mk_type;
|
||
}
|
||
|
||
GtkWidget *
|
||
piano_keyboard_new(void)
|
||
{
|
||
GtkWidget *widget = gtk_type_new(piano_keyboard_get_type());
|
||
|
||
PianoKeyboard *pk = PIANO_KEYBOARD(widget);
|
||
|
||
pk->maybe_stop_sustained_notes = 0;
|
||
pk->sustain_new_notes = 0;
|
||
pk->enable_keyboard_cue = 0;
|
||
pk->octave = 4;
|
||
pk->note_being_pressed_using_mouse = -1;
|
||
memset((void *)pk->notes, 0, sizeof(struct Note) * NNOTES);
|
||
pk->key_bindings = g_hash_table_new(g_str_hash, g_str_equal);
|
||
bind_keys_qwerty(pk);
|
||
|
||
return widget;
|
||
}
|
||
|
||
void
|
||
piano_keyboard_set_keyboard_cue(PianoKeyboard *pk, int enabled)
|
||
{
|
||
pk->enable_keyboard_cue = enabled;
|
||
}
|
||
|
||
void
|
||
piano_keyboard_sustain_press(PianoKeyboard *pk)
|
||
{
|
||
if (!pk->sustain_new_notes) {
|
||
pk->sustain_new_notes = 1;
|
||
pk->maybe_stop_sustained_notes = 1;
|
||
}
|
||
}
|
||
|
||
void
|
||
piano_keyboard_sustain_release(PianoKeyboard *pk)
|
||
{
|
||
if (pk->maybe_stop_sustained_notes)
|
||
stop_sustained_notes(pk);
|
||
|
||
pk->sustain_new_notes = 0;
|
||
}
|
||
|
||
void
|
||
piano_keyboard_set_note_on(PianoKeyboard *pk, int note)
|
||
{
|
||
if (pk->notes[note].pressed == 0) {
|
||
pk->notes[note].pressed = 1;
|
||
queue_note_draw (pk, note);
|
||
}
|
||
}
|
||
|
||
void
|
||
piano_keyboard_set_note_off(PianoKeyboard *pk, int note)
|
||
{
|
||
if (pk->notes[note].pressed || pk->notes[note].sustained) {
|
||
pk->notes[note].pressed = 0;
|
||
pk->notes[note].sustained = 0;
|
||
queue_note_draw (pk, note);
|
||
}
|
||
}
|
||
|
||
void
|
||
piano_keyboard_set_octave(PianoKeyboard *pk, int octave)
|
||
{
|
||
stop_unsustained_notes(pk);
|
||
pk->octave = octave;
|
||
gtk_widget_queue_draw(GTK_WIDGET(pk));
|
||
}
|
||
|
||
gboolean
|
||
piano_keyboard_set_keyboard_layout(PianoKeyboard *pk, const char *layout)
|
||
{
|
||
assert(layout);
|
||
|
||
if (!g_ascii_strcasecmp(layout, "QWERTY")) {
|
||
bind_keys_qwerty(pk);
|
||
|
||
} else if (!g_ascii_strcasecmp(layout, "QWERTZ")) {
|
||
bind_keys_qwertz(pk);
|
||
|
||
} else if (!g_ascii_strcasecmp(layout, "AZERTY")) {
|
||
bind_keys_azerty(pk);
|
||
|
||
} else {
|
||
/* Unknown layout name. */
|
||
return TRUE;
|
||
}
|
||
|
||
return FALSE;
|
||
}
|