void KeypadController::start()
{
enum KeypadButton pincode[4] = { KEY_NONE, KEY_NONE, KEY_NONE, KEY_NONE };
int lastCol = -1;
bool pressed = false;
enum segChar writeChar;
if (setup() != 0)
{
emit keypadFinished();
return;
}
// flash 7 segs a few times to show its ready
selectCol(0xF);
for (int i=0; i < 3; i++)
{
write7seg(SEG_EIGHT);
usleep(500000);
write7seg(SEG_BLANK);
usleep(200000);
}
// main loop
for (col = 0; col < 4; col++, col %= 4)
{
QCoreApplication::processEvents();
write7seg(SEG_BLANK);
selectCol(col);
enum KeypadButton button = buttonPressed(col);
if (button == KEY_NONE)
{
if (lastCol == col)
{
pressed = false;
}
// qDebug() << "nothing";
}
else
{
if (pressed)
{
// ignore button held down
// qDebug() << "held\n";
}
else if (buttonIsNumeric(button))
{
// a new button was pressed
if (needPincode)
{
// add it to pincode
pincode[count] = button;
count++;
qDebug() << "Button is" << getRealNumber(button) << "count is " << count;
}
else
{
// forward to main thread
qDebug() << "Button is" << getRealNumber(button);
emit forwardButton(button);
}
pressed = true;
lastCol = col;
}
}
if (count == 4)
{
QString pin = QString("%1%2%3%4").arg(getRealNumber(pincode[0]))
.arg(getRealNumber(pincode[1]))
.arg(getRealNumber(pincode[2]))
.arg(getRealNumber(pincode[3]));
if (needPincode)
{
emit forwardPincode(pin);
}
needPincode = false;
}
writeChar = getHexRepresentation(pincode[col]);
write7seg(writeChar);
usleep(1000);
}
}
int distinctCol(const char *choose)
{
dau.srm.hint="DISTINCT";
return selectCol(choose);
}