void QvkShowkeyGetkey::run()
{
const timespec sleeptime = { 0, 1000000 };
/*
* open the display
*/
if (! ( display = XOpenDisplay( NULL ) ) )
{
std::cerr << "Can't open display NULL" << '\n';
std::exit(1);
}
/*
* fill up keyboard mapping
*/
//fill_mappings();
// keys aus eigene Routine ermitteln
QStringList keyList = PrintKeyTable();
/*
* fill relevant key buffers
*/
char keys[32]; // buffer for reading keys in
char lastkeys[32]; // previous keys state
std::fill(lastkeys, lastkeys + sizeof(lastkeys), 0);
/*
* query keyboard in loop
*/
bool last_is_nav = false; // navigation key indicator
// bool last_is_char = false; // spaces adjustment
while (cont) {
nanosleep(&sleeptime, 0); // avoid busy waiting
XQueryKeymap( display, keys );
// read modifiers (caps lock is ignored)
bool shift = false;
bool ctrl = false;
bool alt = false;
bool meta = false;
for (unsigned i = 0; i < sizeof(keys); ++i)
for (unsigned j = 0, test = 1; j < 8; ++j, test *= 2)
if (keys[i] & test)
{
const int code = i*8+j;
if (shift_set.find(code) != shift_set.end())
{
shift = true;
qDebug() << "Shift = true";
}
if (ctrl_set.find(code) != ctrl_set.end())
ctrl = true;
if (alt_set.find(code) != alt_set.end())
alt = true;
if (meta_set.find(code) != meta_set.end())
meta = true;
}
// print changed keys
for (unsigned i = 0; i < sizeof(keys); ++i)
if (keys[i] != lastkeys[i]) {
// check which key got changed
for (unsigned j = 0, test = 1; j < 8; ++j, test *= 2)
// if the key was pressed, and it wasn't before, print this
if ((keys[i] & test) && ((keys[i] & test) != (lastkeys[i] & test)))
{
const int code = i*8+j;
QString key = getKey( keyList, code );
const bool key_is_nav = ( key == "Nav" );
// only print navigation keys once
if ( ! (last_is_nav && key_is_nav) && key.size() > 0 )
{
// change key according to modifiers
if ( ! key_is_nav)
{
if ( meta )
key = " Meta-" + key + " ";
if ( alt )
key = " Alt-" + key + " ";
if ( ctrl )
key = " Ctrl-" + key + " ";
if ( ( not shift ) )
{
emit pressedKey( key );
}
// shift
if ( shift )
{
emit pressedKey( getKeyShift( keyList, code ) );
}
}
last_is_nav = key_is_nav;
}
}
lastkeys[i] = keys[i];
}
}
XCloseDisplay(display);
}
void
print_key_table(Bool exprs)
{
PrintKeyTable (exprs, stdout);
return;
}
