Rx3/jack-keyboard
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Use hardware keycodes to avoid having to implement custom keymaps.

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Submitted by:	Marien Zwart


git-svn-id: svn://svn.code.sf.net/p/jack-keyboard/code/trunk@28 1fa2bf75-7d80-4145-9e94-f9b4e25a1cb2
This commit is contained in:
hselasky 2016-09-05 16:32:53 +00:00
parent 16cff1365c
commit 4d57549bbb
3 changed files with 59 additions and 265 deletions
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4
src/jack-keyboard.c
View File

@ -1701,7 +1701,7 @@ usage(void)
fprintf(stderr, " where <channel> is MIDI channel to use for output, from 1 to 16,\n"); fprintf(stderr, " where <channel> is MIDI channel to use for output, from 1 to 16,\n");
fprintf(stderr, " <bank> is MIDI bank to use, from 0 to 16383,\n"); fprintf(stderr, " <bank> is MIDI bank to use, from 0 to 16383,\n");
fprintf(stderr, " <program> is MIDI program to use, from 0 to 127,\n"); fprintf(stderr, " <program> is MIDI program to use, from 0 to 127,\n");
fprintf(stderr, " and <layout> is QWERTY, QWERTY_REV, QWERTY_UK, QWERTY_UK_REV, QWERTZ, AZERTY or DVORAK.\n"); fprintf(stderr, " and <layout> is QWERTY.\n");
fprintf(stderr, "See manual page for details.\n"); fprintf(stderr, "See manual page for details.\n");
exit(EX_USAGE); exit(EX_USAGE);
@ -1846,7 +1846,7 @@ main(int argc, char *argv[])
int ret = piano_keyboard_set_keyboard_layout(keyboard, keyboard_layout); int ret = piano_keyboard_set_keyboard_layout(keyboard, keyboard_layout);
if (ret) { if (ret) {
g_critical("Invalid layout, proper choices are QWERTY, QWERTY_REV, QWERTY_UK, QWERTY_UK_REV, QWERTZ, AZERTY and DVORAK."); g_critical("Invalid layout, proper choices are QWERTY.");
exit(EX_USAGE); exit(EX_USAGE);
} }
} }

318
src/pianokeyboard.c
View File

@ -209,27 +209,24 @@ stop_sustained_notes(PianoKeyboard *pk)
} }
static int static int
key_binding(PianoKeyboard *pk, const char *key) key_binding(PianoKeyboard *pk, guint16 key)
{ {
gpointer notused, note;
gboolean found;
assert(pk->key_bindings != NULL); assert(pk->key_bindings != NULL);
found = g_hash_table_lookup_extended(pk->key_bindings, key, &notused, &note); if (key >= pk->key_bindings->len)
return (0);
if (!found) return (g_array_index(pk->key_bindings, int, key));
return (-1);
return ((long)note);
} }
static void static void
bind_key(PianoKeyboard *pk, const char *key, long note) bind_key(PianoKeyboard *pk, guint key, int note)
{ {
assert(pk->key_bindings != NULL); assert(pk->key_bindings != NULL);
g_hash_table_insert(pk->key_bindings, (gpointer)key, (gpointer)note); if (key >= pk->key_bindings->len)
g_array_set_size(pk->key_bindings, key + 1);
g_array_index(pk->key_bindings, int, key) = note;
} }
static void static void
@ -237,7 +234,7 @@ clear_notes(PianoKeyboard *pk)
{ {
assert(pk->key_bindings != NULL); assert(pk->key_bindings != NULL);
g_hash_table_remove_all(pk->key_bindings); g_array_set_size(pk->key_bindings, 0);
} }
static void static void
@ -245,250 +242,64 @@ bind_keys_qwerty(PianoKeyboard *pk)
{ {
clear_notes(pk); clear_notes(pk);
/* Lower keyboard row - "zxcvbnm". */ /* Lower keyboard row - "zxcvbnm". 52 is z, 38 is a. */
bind_key(pk, "z", 12); /* C0 */ bind_key(pk, 52, 12); /* C0 */
bind_key(pk, "s", 13); bind_key(pk, 39, 13);
bind_key(pk, "x", 14); bind_key(pk, 53, 14);
bind_key(pk, "d", 15); bind_key(pk, 40, 15);
bind_key(pk, "c", 16); bind_key(pk, 54, 16);
bind_key(pk, "v", 17); bind_key(pk, 55, 17);
bind_key(pk, "g", 18); bind_key(pk, 42, 18);
bind_key(pk, "b", 19); bind_key(pk, 56, 19);
bind_key(pk, "h", 20); bind_key(pk, 43, 20);
bind_key(pk, "n", 21); bind_key(pk, 57, 21);
bind_key(pk, "j", 22); bind_key(pk, 44, 22);
bind_key(pk, "m", 23); bind_key(pk, 58, 23);
/* Upper keyboard row, first octave - "qwertyu". */ /* Map the remaining keys. This overlaps with qwe. */
bind_key(pk, "q", 24); /* C1 */ bind_key(pk, 59, 24);
bind_key(pk, "2", 25); bind_key(pk, 46, 25);
bind_key(pk, "w", 26); bind_key(pk, 60, 26);
bind_key(pk, "3", 27); bind_key(pk, 47, 27);
bind_key(pk, "e", 28); bind_key(pk, 61, 28);
bind_key(pk, "r", 29);
bind_key(pk, "5", 30); /* Upper keyboard row, first octave - "qwertyu". 24 is q, 10 is 1. */
bind_key(pk, "t", 31); bind_key(pk, 24, 24);
bind_key(pk, "6", 32); bind_key(pk, 11, 25);
bind_key(pk, "y", 33); bind_key(pk, 25, 26);
bind_key(pk, "7", 34); bind_key(pk, 12, 27);
bind_key(pk, "u", 35); bind_key(pk, 26, 28);
bind_key(pk, 27, 29);
bind_key(pk, 14, 30);
bind_key(pk, 28, 31);
bind_key(pk, 15, 32);
bind_key(pk, 29, 33);
bind_key(pk, 16, 34);
bind_key(pk, 30, 35);
/* Upper keyboard row, the rest - "iop". */ /* Upper keyboard row, the rest - "iop". */
bind_key(pk, "i", 36); /* C2 */ bind_key(pk, 31, 36);
bind_key(pk, "9", 37); bind_key(pk, 18, 37);
bind_key(pk, "o", 38); bind_key(pk, 32, 38);
bind_key(pk, "0", 39); bind_key(pk, 19, 39);
bind_key(pk, "p", 40); bind_key(pk, 33, 40);
}
static void
bind_keys_qwerty_uk(PianoKeyboard *pk)
{
bind_keys_qwerty(pk);
/* Lower keyboard row - "zxcvbnm". */
bind_key(pk, "backslash", 11); /* B0 */
/* ... */
bind_key(pk, "comma", 24); /* C1 */
bind_key(pk, "l", 25);
bind_key(pk, "period", 26);
bind_key(pk, "semicolon", 27);
bind_key(pk, "slash", 28);
/* Upper keyboard row, the rest - "iop". */
bind_key(pk, "bracketleft", 41); /* F6 */
bind_key(pk, "equal", 42);
bind_key(pk, "bracketright", 43);
}
static void
bind_keys_qwerty_rev(PianoKeyboard *pk)
{
clear_notes(pk);
/* Lower keyboard row - "zxcvbnm". */
bind_key(pk, "z", 24); /* C1 */
bind_key(pk, "s", 25);
bind_key(pk, "x", 26);
bind_key(pk, "d", 27);
bind_key(pk, "c", 28);
bind_key(pk, "v", 29);
bind_key(pk, "g", 30);
bind_key(pk, "b", 31);
bind_key(pk, "h", 32);
bind_key(pk, "n", 33);
bind_key(pk, "j", 34);
bind_key(pk, "m", 35);
/* Upper keyboard row, first octave - "qwertyu". */
bind_key(pk, "q", 12); /* C0 */
bind_key(pk, "2", 13);
bind_key(pk, "w", 14);
bind_key(pk, "3", 15);
bind_key(pk, "e", 16);
bind_key(pk, "r", 17);
bind_key(pk, "5", 18);
bind_key(pk, "t", 19);
bind_key(pk, "6", 20);
bind_key(pk, "y", 21);
bind_key(pk, "7", 22);
bind_key(pk, "u", 23);
/* Upper keyboard row, the rest - "iop". */
bind_key(pk, "i", 24); /* C1 */
bind_key(pk, "9", 25);
bind_key(pk, "o", 26);
bind_key(pk, "0", 27);
bind_key(pk, "p", 28);
}
static void
bind_keys_qwerty_uk_rev(PianoKeyboard *pk)
{
bind_keys_qwerty_rev(pk);
/* Lower keyboard row - "zxcvbnm". */
bind_key(pk, "backslash", 23); /* B-1 */
/* ... */
bind_key(pk, "comma", 36); /* C2 */
bind_key(pk, "l", 37);
bind_key(pk, "period", 38);
bind_key(pk, "semicolon", 39);
bind_key(pk, "slash", 40);
/* Upper keyboard row, the rest - "iop". */
bind_key(pk, "bracketleft", 29);
bind_key(pk, "equal", 30);
bind_key(pk, "bracketright", 31);
}
static void
bind_keys_qwertz(PianoKeyboard *pk)
{
bind_keys_qwerty(pk);
/* The only difference between QWERTY and QWERTZ is that the "y" and "z" are swapped together. */
bind_key(pk, "y", 12);
bind_key(pk, "z", 33);
}
static void
bind_keys_azerty(PianoKeyboard *pk)
{
clear_notes(pk);
/* Lower keyboard row - "wxcvbn,". */
bind_key(pk, "w", 12); /* C0 */
bind_key(pk, "s", 13);
bind_key(pk, "x", 14);
bind_key(pk, "d", 15);
bind_key(pk, "c", 16);
bind_key(pk, "v", 17);
bind_key(pk, "g", 18);
bind_key(pk, "b", 19);
bind_key(pk, "h", 20);
bind_key(pk, "n", 21);
bind_key(pk, "j", 22);
bind_key(pk, "comma", 23);
/* Upper keyboard row, first octave - "azertyu". */
bind_key(pk, "a", 24);
bind_key(pk, "eacute", 25);
bind_key(pk, "z", 26);
bind_key(pk, "quotedbl", 27);
bind_key(pk, "e", 28);
bind_key(pk, "r", 29);
bind_key(pk, "parenleft", 30);
bind_key(pk, "t", 31);
bind_key(pk, "minus", 32);
bind_key(pk, "y", 33);
bind_key(pk, "egrave", 34);
bind_key(pk, "u", 35);
/* Upper keyboard row, the rest - "iop". */
bind_key(pk, "i", 36);
bind_key(pk, "ccedilla", 37);
bind_key(pk, "o", 38);
bind_key(pk, "agrave", 39);
bind_key(pk, "p", 40);
}
static void
bind_keys_dvorak(PianoKeyboard *pk)
{
clear_notes(pk);
/* Lower keyboard row - ";qjkxbm". */
bind_key(pk, "semicolon", 12); /* C0 */
bind_key(pk, "o", 13);
bind_key(pk, "q", 14);
bind_key(pk, "e", 15);
bind_key(pk, "j", 16);
bind_key(pk, "k", 17);
bind_key(pk, "i", 18);
bind_key(pk, "x", 19);
bind_key(pk, "d", 20);
bind_key(pk, "b", 21);
bind_key(pk, "h", 22);
bind_key(pk, "m", 23);
bind_key(pk, "w", 24); /* overlaps with upper row */
bind_key(pk, "n", 25);
bind_key(pk, "v", 26);
bind_key(pk, "s", 27);
bind_key(pk, "z", 28);
/* Upper keyboard row, first octave - "',.pyfg". */
bind_key(pk, "apostrophe", 24);
bind_key(pk, "2", 25);
bind_key(pk, "comma", 26);
bind_key(pk, "3", 27);
bind_key(pk, "period", 28);
bind_key(pk, "p", 29);
bind_key(pk, "5", 30);
bind_key(pk, "y", 31);
bind_key(pk, "6", 32);
bind_key(pk, "f", 33);
bind_key(pk, "7", 34);
bind_key(pk, "g", 35);
/* Upper keyboard row, the rest - "crl". */
bind_key(pk, "c", 36);
bind_key(pk, "9", 37);
bind_key(pk, "r", 38);
bind_key(pk, "0", 39);
bind_key(pk, "l", 40);
bind_key(pk, "slash", 41); /* extra F */
bind_key(pk, "bracketright", 42);
bind_key(pk, "equal", 43);
/* We might as well bind these too: "[=]\" */
bind_key(pk, 34, 41);
bind_key(pk, 21, 42);
bind_key(pk, 35, 43);
bind_key(pk, 51, 45); /* yes, really, at least here... */
} }
static gint static gint
keyboard_event_handler(GtkWidget *mk, GdkEventKey *event, gpointer notused) keyboard_event_handler(GtkWidget *mk, GdkEventKey *event, gpointer notused)
{ {
int note; int note;
char *key;
guint keyval;
GdkKeymapKey kk;
PianoKeyboard *pk = PIANO_KEYBOARD(mk); PianoKeyboard *pk = PIANO_KEYBOARD(mk);
/* We're not using event->keyval, because we need keyval with level set to 0. note = key_binding(pk, event->hardware_keycode);
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); if (note <= 0) {
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(pk, key);
if (note < 0) {
/* Key was not bound. Maybe it's one of the keys handled in jack-keyboard.c. */ /* Key was not bound. Maybe it's one of the keys handled in jack-keyboard.c. */
return (FALSE); return (FALSE);
} }
@ -778,7 +589,8 @@ piano_keyboard_new(void)
pk->octave = 4; pk->octave = 4;
pk->note_being_pressed_using_mouse = -1; pk->note_being_pressed_using_mouse = -1;
memset((void *)pk->notes, 0, sizeof(struct Note) * NNOTES); memset((void *)pk->notes, 0, sizeof(struct Note) * NNOTES);
pk->key_bindings = g_hash_table_new(g_str_hash, g_str_equal); /* 255 here is a random value larger than the highest key we bind. */
pk->key_bindings = g_array_sized_new(FALSE, TRUE, sizeof(int), 255);
pk->min_note = PIANO_MIN_NOTE; pk->min_note = PIANO_MIN_NOTE;
pk->max_note = PIANO_MAX_NOTE; pk->max_note = PIANO_MAX_NOTE;
bind_keys_qwerty(pk); bind_keys_qwerty(pk);
@ -845,24 +657,6 @@ piano_keyboard_set_keyboard_layout(PianoKeyboard *pk, const char *layout)
if (!strcasecmp(layout, "QWERTY")) { if (!strcasecmp(layout, "QWERTY")) {
bind_keys_qwerty(pk); bind_keys_qwerty(pk);
} else if (!strcasecmp(layout, "QWERTY_REV")) {
bind_keys_qwerty_rev(pk);
} else if (!strcasecmp(layout, "QWERTY_UK")) {
bind_keys_qwerty_uk(pk);
} else if (!strcasecmp(layout, "QWERTY_UK_REV")) {
bind_keys_qwerty_uk_rev(pk);
} else if (!strcasecmp(layout, "QWERTZ")) {
bind_keys_qwertz(pk);
} else if (!strcasecmp(layout, "AZERTY")) {
bind_keys_azerty(pk);
} else if (!strcasecmp(layout, "DVORAK")) {
bind_keys_dvorak(pk);
} else { } else {
/* Unknown layout name. */ /* Unknown layout name. */
return (TRUE); return (TRUE);

2
src/pianokeyboard.h
View File

@ -80,7 +80,7 @@ struct _PianoKeyboard
int max_note; int max_note;
volatile struct Note notes[NNOTES]; volatile struct Note notes[NNOTES];
/* Table used to translate from PC keyboard character to MIDI note number. */ /* Table used to translate from PC keyboard character to MIDI note number. */
GHashTable *key_bindings; GArray *key_bindings;
}; };
struct _PianoKeyboardClass struct _PianoKeyboardClass