//---------------------------------------------------------------------------------------
void DlgMetronome::on_button(wxCommandEvent& event)
{
int button = event.GetId();
if (button == k_id_button_increment)
{
increment_tempo();
display_tempo();
}
else if (button == k_id_button_decrement)
{
decrement_tempo();
display_tempo();
}
else if (button == k_id_button_tap_tempo)
{
compute_tapped_tempo();
display_tempo();
}
else if (button == k_id_button_start)
{
if (m_pMtr->is_running())
{
m_pMtr->stop();
m_pStartButton->SetLabel(_("Start"));
}
else
{
m_pMtr->start();
m_pStartButton->SetLabel(_("Stop"));
}
}
return;
}
int main(int argc, char** argv) {
if (argc != 3) {
printf("usage: %s device key\n", argv[0]);
printf(" device: /dev/midi\n");
printf(" key: 36\n");
printf(" -1 for key means display mode\n");
exit(1);
}
int key = atoi(argv[2]);
int display_mode = key == -1;
if (!display_mode && (key < 0 || key > 127)) {
printf("key must be between 0 and 127. The dtx500 kick drum is 36\n");
exit(1);
}
int fd = open(argv[1], O_RDONLY);
if (fd == -1) {
perror("tempo: open");
exit(1);
}
int state = INITIAL;
double ts[SAMPLES];
int pos = 0;
unsigned char c;
while (1) {
read(fd, &c, 1);
if (state == INITIAL) {
if (c >= 0x90 && c < 0xA0) {
state = SAW_NOTE_ON;
}
} else if (state == SAW_NOTE_ON) {
if (display_mode) {
printf(" %d\n", c);
} else if (c == key) {
ts[pos % SAMPLES] = current_minute();
if (pos > SAMPLES) {
int tempo = (SAMPLES-1)/(
ts[pos % SAMPLES] -
ts[(pos+1) % SAMPLES]) + 0.5;
display_tempo(tempo);
}
pos++;
}
state = INITIAL;
}
}
}
//---------------------------------------------------------------------------------------
void DlgMetronome::on_update_number(wxCommandEvent& WXUNUSED(event))
{
wxString value = m_pTempoDisplay->GetValue();
long num = 0L;
if (value.ToLong(&num))
{
m_tempo = num;
if (m_tempo < 1)
m_tempo = 1;
else if (m_tempo > 300)
m_tempo = 300;
}
set_tempo(m_tempo);
display_tempo();
}
//---------------------------------------------------------------------------------------
void DlgMetronome::on_tempo_slider(wxCommandEvent& WXUNUSED(event))
{
set_tempo( m_pTempoSlider->GetValue() );
display_tempo();
}
//---------------------------------------------------------------------------------------
void DlgMetronome::on_tempo_choice(wxCommandEvent& event)
{
int i = m_pItalianTempo->GetSelection();
set_tempo( m_tempi[i].defaultTempo );
display_tempo();
}
