bool Window::waitEvent(WindowEvent &event) {
if (mBase && mBase->popEvent(event, true)) {
return filterEvent(event);
} else {
return false;
}
}
bool Window::pollEvent(WindowEvent &event) {
if (mBase && mBase->popEvent(event, false)) {
return filterEvent(event);
} else {
return false;
}
}
void KisToolDyna::continuePrimaryAction(KoPointerEvent *event)
{
setMousePosition(event->point);
if (applyFilter(m_mousePos.x(), m_mousePos.y())) {
KoPointerEvent newEvent = filterEvent(event);
KisToolFreehand::continuePrimaryAction(&newEvent);
}
}
bool Window::waitEvent(Event& event)
{
if (m_impl && m_impl->popEvent(event, true))
{
return filterEvent(event);
}
else
{
return false;
}
}
bool Window::pollEvent(Event& event)
{
if (m_impl && m_impl->popEvent(event, false))
{
return filterEvent(event);
}
else
{
return false;
}
}
bool QEventDispatcherQWS::processEvents(QEventLoop::ProcessEventsFlags flags)
{
Q_D(QEventDispatcherQWS);
// process events from the QWS server
int nevents = 0;
// handle gui and posted events
d->interrupt = false;
QApplication::sendPostedEvents();
while (!d->interrupt) { // also flushes output buffer ###can be optimized
QWSEvent *event;
if (!(flags & QEventLoop::ExcludeUserInputEvents)
&& !d->queuedUserInputEvents.isEmpty()) {
// process a pending user input event
event = d->queuedUserInputEvents.takeFirst();
} else if (qt_fbdpy->eventPending()) {
event = qt_fbdpy->getEvent(); // get next event
if (flags & QEventLoop::ExcludeUserInputEvents) {
// queue user input events
if (event->type == QWSEvent::Mouse || event->type == QWSEvent::Key) {
d->queuedUserInputEvents.append(event);
continue;
}
}
} else {
break;
}
if (filterEvent(event)) {
delete event;
continue;
}
nevents++;
bool ret = qApp->qwsProcessEvent(event) == 1;
delete event;
if (ret) {
return true;
}
}
if (!d->interrupt) {
extern QList<QWSCommand*> *qt_get_server_queue();
if (!qt_get_server_queue()->isEmpty()) {
QWSServer::processEventQueue();
}
if (QEventDispatcherUNIX::processEvents(flags))
return true;
}
return (nevents > 0);
}
void KisToolDyna::mouseMoveEvent(KoPointerEvent *e)
{
if(!MOVE_CONDITION(event, KisTool::PAINT_MODE)) {
KisToolFreehand::mouseMoveEvent(e);
return;
}
setMousePosition(e->point);
if (applyFilter(m_mousePos.x(), m_mousePos.y())) {
KoPointerEvent newEvent = filterEvent(e);
KisToolFreehand::mouseMoveEvent(&newEvent);
}
if (m_painter && m_painter->paintOp() && currentPaintOpPreset()->settings()->isAirbrushing()) {
m_timer->start(m_rate);
}
}
void MidiJackDevice::recordEvent(MidiRecordEvent& event)/*{{{*/
{
if (audio->isPlaying())
event.setLoopNum(audio->loopCount());
if (midiInputTrace)
{
printf("Jack MidiInput: ");
event.dump();
}
int typ = event.type();
if (_port != -1)
{
//call our midimonitor with the data, it can then decide what to do
monitorEvent(event);
}
//
// process midi event input filtering and
// transformation
//
processMidiInputTransformPlugins(event);
if (filterEvent(event, midiRecordType, false))
return;
if (!applyMidiInputTransformation(event))
{
if (midiInputTrace)
printf(" midi input transformation: event filtered\n");
return;
}
//
// transfer noteOn events to gui for step recording and keyboard
// remote control
//
if (typ == ME_NOTEON)
{
int pv = ((event.dataA() & 0xff) << 8) + (event.dataB() & 0xff);
song->putEvent(pv);
}
//This was not sending noteoff events at all sometimes causing strange endless note in step rec
else if(typ == ME_NOTEOFF)
{
int pv = ((event.dataA() & 0xff) << 8) + (0x00);
song->putEvent(pv);
}
// Do not bother recording if it is NOT actually being used by a port.
// Because from this point on, process handles things, by selected port.
if (_port == -1)
return;
// Split the events up into channel fifos. Special 'channel' number 17 for sysex events.
unsigned int ch = (typ == ME_SYSEX) ? kMaxMidiChannels : event.channel();
if (_recordFifo[ch].put(MidiPlayEvent(event)))
printf("MidiJackDevice::recordEvent: fifo channel %d overflow\n", ch);
}/*}}}*/
void
CStreamFilter::handleUpstreamEvent(const CEvent& event, void*)
{
filterEvent(event);
}
int QEventDispatcherBlackberry::select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
timeval *timeout)
{
Q_UNUSED(nfds);
// prepare file sets for bps callback
Q_D(QEventDispatcherBlackberry);
d->ioData->count = 0;
d->ioData->readfds = readfds;
d->ioData->writefds = writefds;
d->ioData->exceptfds = exceptfds;
// \TODO Remove this when bps is fixed
//
// Work around a bug in BPS with which if we register the thread_pipe[0] fd with bps in the
// private class' ctor once only then we get spurious notifications that thread_pipe[0] is
// ready for reading. The first time the notification is correct and the pipe is emptied in
// the calling doSelect() function. The 2nd notification is an error and the resulting attempt
// to read and call to wakeUps.testAndSetRelease(1, 0) fails as there has been no intervening
// call to QEventDispatcherUNIX::wakeUp().
//
// Registering thread_pipe[0] here and unregistering it at the end of this call works around
// this issue.
int io_events = BPS_IO_INPUT;
int result = bps_add_fd(d->thread_pipe[0], io_events, &bpsIOHandler, d->ioData.data());
if (result != BPS_SUCCESS)
qWarning() << Q_FUNC_INFO << "bps_add_fd() failed";
// reset all file sets
if (readfds)
FD_ZERO(readfds);
if (writefds)
FD_ZERO(writefds);
if (exceptfds)
FD_ZERO(exceptfds);
// convert timeout to milliseconds
int timeout_ms = -1;
if (timeout)
timeout_ms = (timeout->tv_sec * 1000) + (timeout->tv_usec / 1000);
QElapsedTimer timer;
timer.start();
do {
// wait for event or file to be ready
bps_event_t *event = NULL;
// \TODO Remove this when bps is fixed
// BPS has problems respecting timeouts.
// Replace the bps_get_event statement
// with the following commented version
// once bps is fixed.
// result = bps_get_event(&event, timeout_ms);
result = bps_get_event(&event, 0);
if (result != BPS_SUCCESS)
qWarning("QEventDispatcherBlackberry::select: bps_get_event() failed");
if (!event)
break;
// pass all received events through filter - except IO ready events
if (event && bps_event_get_domain(event) != bpsIOReadyDomain)
filterEvent((void*)event);
} while (timer.elapsed() < timeout_ms);
// \TODO Remove this when bps is fixed (see comment above)
result = bps_remove_fd(d->thread_pipe[0]);
if (result != BPS_SUCCESS)
qWarning() << Q_FUNC_INFO << "bps_remove_fd() failed";
// the number of bits set in the file sets
return d->ioData->count;
}
void MidiDevice::recordEvent(MidiRecordEvent& event)
{
if(MusEGlobal::audio->isPlaying())
event.setLoopNum(MusEGlobal::audio->loopCount());
if (MusEGlobal::midiInputTrace) {
fprintf(stderr, "MidiInput: ");
dumpMPEvent(&event);
}
int typ = event.type();
if(_port != -1)
{
int idin = MusEGlobal::midiPorts[_port].syncInfo().idIn();
//---------------------------------------------------
// filter some SYSEX events
//---------------------------------------------------
if (typ == ME_SYSEX) {
const unsigned char* p = event.data();
int n = event.len();
if (n >= 4) {
if ((p[0] == 0x7f)
&& ((p[1] == 0x7f) || (idin == 0x7f) || (p[1] == idin))) {
if (p[2] == 0x06) {
MusEGlobal::midiSyncContainer.mmcInput(_port, p, n);
return;
}
if (p[2] == 0x01) {
MusEGlobal::midiSyncContainer.mtcInputFull(_port, p, n);
return;
}
}
else if (p[0] == 0x7e) {
MusEGlobal::midiSyncContainer.nonRealtimeSystemSysex(_port, p, n);
return;
}
}
}
else
// Trigger general activity indicator detector. Sysex has no channel, don't trigger.
MusEGlobal::midiPorts[_port].syncInfo().trigActDetect(event.channel());
}
//
// process midi event input filtering and
// transformation
//
processMidiInputTransformPlugins(event);
if (filterEvent(event, MusEGlobal::midiRecordType, false))
return;
if (!applyMidiInputTransformation(event)) {
if (MusEGlobal::midiInputTrace)
fprintf(stderr, " midi input transformation: event filtered\n");
return;
}
//
// transfer noteOn and Off events to gui for step recording and keyboard
// remote control (changed by flo93: added noteOff-events)
//
if (typ == ME_NOTEON) {
int pv = ((event.dataA() & 0xff)<<8) + (event.dataB() & 0xff);
MusEGlobal::song->putEvent(pv);
}
else if (typ == ME_NOTEOFF) {
int pv = ((event.dataA() & 0xff)<<8) + (0x00); //send an event with velo=0
MusEGlobal::song->putEvent(pv);
}
// Do not bother recording if it is NOT actually being used by a port.
// Because from this point on, process handles things, by selected port.
if(_port == -1)
return;
// Split the events up into channel fifos. Special 'channel' number 17 for sysex events.
unsigned int ch = (typ == ME_SYSEX)? MusECore::MUSE_MIDI_CHANNELS : event.channel();
if(_recordFifo[ch].put(event))
fprintf(stderr, "MidiDevice::recordEvent: fifo channel %d overflow\n", ch);
}
bool QEventDispatcherGix::processEvents(QEventLoop::ProcessEventsFlags flags)
{
Q_D(QEventDispatcherGix);
int rv = 0;
d->interrupt = false;
QApplication::sendPostedEvents();
int nevents = 0;
do {
while (!d->interrupt) {
gi_msg_t event;
if (!(flags & QEventLoop::ExcludeUserInputEvents)
&& !d->queuedUserInputEvents.isEmpty()) {
// process a pending user input event
event = d->queuedUserInputEvents.takeFirst();
} else if (gi_peek_message(&event) > 0) {
// process events from the X server
gi_next_message( &event);
if (flags & QEventLoop::ExcludeUserInputEvents) {
// queue user input events
switch (event.type) {
case GI_MSG_BUTTON_DOWN:
case GI_MSG_BUTTON_UP:
case GI_MSG_MOUSE_MOVE:
case GI_MSG_KEY_DOWN:
case GI_MSG_KEY_UP:
case GI_MSG_MOUSE_ENTER:
case GI_MSG_MOUSE_EXIT:
d->queuedUserInputEvents.append(event);
continue;
case GI_MSG_CLIENT_MSG:
d->queuedUserInputEvents.append(event);
continue;
default:
break;
}
}
} else {
// no event to process
break;
}
// send through event filter
if (filterEvent(&event))
continue;
nevents++;
rv = qApp->pfProcessEvent(&event);
//if (rv == 1)
{
// return true;
}
}
} while (!d->interrupt && gi_get_event_cached(FALSE) > 0);
out:
if (!d->interrupt) {
//QEventLoop::GixExcludeTimers
const uint exclude_all =
QEventLoop::ExcludeSocketNotifiers | QEventLoop::WaitForMoreEvents;
if (nevents > 0 && ((uint)flags & exclude_all) == exclude_all) {
QApplication::sendPostedEvents();
return nevents > 0;
}
// return true if we handled events, false otherwise
return QEventDispatcherUNIX::processEvents(flags) || (nevents > 0);
}
if (configRequests ) // any pending configs?
qWinProcessConfigRequests();
return nevents > 0;
}
int QEventDispatcherBlackberry::select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
timeval *timeout)
{
Q_UNUSED(nfds);
Q_D(QEventDispatcherBlackberry);
const BBScopedLoopLevelCounter bbLoopCounter(d);
BpsChannelScopeSwitcher channelSwitcher(d->bps_channel);
// prepare file sets for bps callback
d->ioData->count = 0;
d->ioData->readfds = readfds;
d->ioData->writefds = writefds;
d->ioData->exceptfds = exceptfds;
// reset all file sets
if (readfds)
FD_ZERO(readfds);
if (writefds)
FD_ZERO(writefds);
if (exceptfds)
FD_ZERO(exceptfds);
bps_event_t *event = 0;
unsigned int eventCount = 0;
// If an event handler called through filterEvent() starts a nested event loop by creating a
// new QEventLoop, we will recursively enter this function again. However, each time
// bps_get_event() is called, it destroys the last event it handed out before returning the
// next event. We don't want it to destroy the event that triggered the nested event loop,
// since there may still be more handlers that need to get that event, once the nested event
// loop is done and control returns to the outer event loop.
//
// So we move an event to a holding channel, which takes ownership of the event. Putting
// the event on our own channel allows us to manage when it is destroyed, keeping it alive
// until we know we are done with it. Each recursive call of this function needs to have
// it's own holding channel, since a channel is a queue, not a stack.
//
// However, a recursive call into this function happens very rarely compared to the many
// times this function is called. We don't want to create a holding channel for each time
// this function is called, only when it is called recursively. Thus we have the instance
// variable d->holding_channel to use in the common case. We keep track of recursive calls
// with d->loop_level. If we are in a recursive call, then we create a new holding channel
// for this run.
int holding_channel = d->holding_channel;
if ((d->loop_level > 1) &&
Q_UNLIKELY(bps_channel_create(&holding_channel, 0) != BPS_SUCCESS)) {
qWarning("QEventDispatcherBlackberry: bps_channel_create failed");
holding_channel = -1;
}
// Convert timeout to milliseconds
int timeoutTotal = -1;
if (timeout)
timeoutTotal = timevalToMillisecs(*timeout);
int timeoutLeft = timeoutTotal;
timeval startTime = qt_gettime();
// This loop exists such that we can drain the bps event queue of all native events
// more efficiently than if we were to return control to Qt after each event. This
// is important for handling touch events which can come in rapidly.
forever {
// Only emit the awake() and aboutToBlock() signals in the second iteration. For the
// first iteration, the UNIX event dispatcher will have taken care of that already.
// Also native events are actually processed one loop iteration after they were
// retrieved with bps_get_event().
// Filtering the native event should happen between the awake() and aboutToBlock()
// signal emissions. The calls awake() - filterNativeEvent() - aboutToBlock() -
// bps_get_event() need not to be interrupted by a break or return statement.
if (eventCount > 0) {
if (event) {
emit awake();
filterEvent(static_cast<void*>(event));
emit aboutToBlock();
if (Q_LIKELY(holding_channel != -1)) {
// We are now done with this BPS event. Destroy it.
destroyHeldBpsEvent(holding_channel);
}
}
// Update the timeout
// Clock source is monotonic, so we can recalculate how much timeout is left
if (timeoutTotal != -1) {
timeval t2 = qt_gettime();
timeoutLeft = timeoutTotal
- (timevalToMillisecs(t2) - timevalToMillisecs(startTime));
if (timeoutLeft < 0)
timeoutLeft = 0;
}
timeval tnext;
if (d->timerList.timerWait(tnext)) {
int timeoutNext = timevalToMillisecs(tnext);
if (timeoutNext < timeoutLeft || timeoutTotal == -1) {
timeoutTotal = timeoutLeft = timeoutNext;
startTime = qt_gettime();
}
}
}
event = 0;
{ // We need to increase loop level in this scope,
// because bps_get_event can also invoke callbacks
QScopedLoopLevelCounter loopLevelCounter(d->threadData);
// Wait for event or file to be ready
const int result = bps_get_event(&event, timeoutLeft);
if (Q_UNLIKELY(result != BPS_SUCCESS))
qWarning("QEventDispatcherBlackberry: bps_get_event failed");
}
if (!event) // In case of !event, we break out of the loop to let Qt process the timers
break; // (since timeout has expired) and socket notifiers that are now ready.
if (bps_event_get_domain(event) == bpsUnblockDomain) {
timeoutTotal = 0; // in order to immediately drain the event queue of native events
event = 0; // (especially touch move events) we don't break out here
} else {
// Move the event to our holding channel so we can manage when it is destroyed.
if (Q_LIKELY(holding_channel != 1) &&
Q_UNLIKELY(bps_channel_push_event(holding_channel, event) != BPS_SUCCESS)) {
qWarning("QEventDispatcherBlackberry: bps_channel_push_event failed");
}
}
++eventCount;
// Make sure we are not trapped in this loop due to continuous native events
// also we cannot recalculate the timeout without a monotonic clock as the time may have changed
const unsigned int maximumEventCount = 12;
if (Q_UNLIKELY((eventCount > maximumEventCount && timeoutLeft == 0)
|| !QElapsedTimer::isMonotonic())) {
if (event) {
filterEvent(static_cast<void*>(event));
if (Q_LIKELY(holding_channel != -1)) {
// We are now done with this BPS event. Destroy it.
destroyHeldBpsEvent(holding_channel);
}
}
break;
}
}
// If this was a recursive call into this function, a new holding channel was created for
// this run, so destroy it now.
if ((holding_channel != d->holding_channel) &&
Q_LIKELY(holding_channel != -1) &&
Q_UNLIKELY(bps_channel_destroy(holding_channel) != BPS_SUCCESS)) {
qWarning("QEventDispatcherBlackberry: bps_channel_destroy failed");
}
// the number of bits set in the file sets
return d->ioData->count;
}
void
StreamFilter::handleUpstreamEvent(const Event& event, void* /*unused*/)
{
filterEvent(event);
}
int main(int argc, char *argv[])
{
FILE *f;
//int start = 0, fc = 0, fo = 0, opt, i;
long long int res = 0, done = 0;
int first_param;
first_param = param(argc, argv);
if (argc - first_param < 1) {
help(argv[0]);
}
createPidsFilter(relevant_pids);
if (strcmp(argv[first_param], "-")) {
f = fopen(argv[first_param], "r");
} else {
f = stdin;
}
if (f == NULL) {
perror("Cannot open input file");
return -1;
}
while (!done) {
struct event *e;
switch (trace_type) {
case FTRACE:
res = ftrace_parse(f);
break;
case OFTRACE:
res = oftrace_parse(f);
break;
case JTRACE:
res = jtrace_read(f);
break;
case L4TRACE:
res = l4trace_parse(f);
break;
case TRCUTILS:
res = trace_read(f, 0);
break;
case XTRACE:
res = trace_read(f, 1);
break;
default:
fprintf(stderr,
"Unknown trace type: this shouldn't have happened...\n");
exit(-1);
}
while (e = evt_get()) {
filterEvent(e);
trc_write(e);
free(e);
}
done = feof(f) || (res < 0);
}
// endAllTask(time);
destroyPidsFilter();
return 0;
}
bool QEventDispatcherMac::processEvents(QEventLoop::ProcessEventsFlags flags)
{
Q_D(QEventDispatcherMac);
#if 0
//TrackDrag says you may not use the EventManager things..
if(qt_mac_in_drag) {
qWarning("Qt: Cannot process events whilst dragging!");
return false;
}
#endif
d->interrupt = false;
emit awake();
#ifndef QT_MAC_NO_QUICKDRAW
if(!qt_mac_safe_pdev) { //create an empty widget and this can be used for a port anytime
QWidget *tlw = new QWidget;
tlw->setAttribute(Qt::WA_DeleteOnClose);
tlw->setObjectName(QLatin1String("empty_widget"));
tlw->hide();
qt_mac_safe_pdev = tlw;
}
#endif
bool retVal = false;
for (;;) {
QApplicationPrivate::sendPostedEvents(0, 0, d->threadData);
if (d->activateTimers() > 0) //send null timers
retVal = true;
do {
EventRef event;
if (!(flags & QEventLoop::ExcludeUserInputEvents)
&& !d->queuedUserInputEvents.isEmpty()) {
// process a pending user input event
event = d->queuedUserInputEvents.takeFirst();
} else {
OSStatus err = ReceiveNextEvent(0,0, kEventDurationNoWait, true, &event);
if(err != noErr)
continue;
// else
if (flags & QEventLoop::ExcludeUserInputEvents) {
UInt32 ekind = GetEventKind(event),
eclass = GetEventClass(event);
switch(eclass) {
case kEventClassQt:
if(ekind != kEventQtRequestContext)
break;
// fall through
case kEventClassMouse:
case kEventClassKeyboard:
d->queuedUserInputEvents.append(event);
continue;
}
}
}
if (!filterEvent(&event) && qt_mac_send_event(flags, event))
retVal = true;
ReleaseEvent(event);
} while(!d->interrupt && GetNumEventsInQueue(GetMainEventQueue()) > 0);
bool canWait = (d->threadData->canWait
&& !retVal
&& !d->interrupt
&& (flags & QEventLoop::WaitForMoreEvents)
&& !d->zero_timer_count);
if (canWait) {
emit aboutToBlock();
while(CFRunLoopRunInMode(kCFRunLoopDefaultMode, 1.0e20, true) == kCFRunLoopRunTimedOut);
flags &= ~QEventLoop::WaitForMoreEvents;
emit awake();
} else {
CFRunLoopRunInMode(kCFRunLoopDefaultMode, kEventDurationNoWait, true);
break;
}
}
return retVal;
}
bool QEventDispatcherX11::processEvents(QEventLoop::ProcessEventsFlags flags)
{
Q_D(QEventDispatcherX11);
d->interrupt = false;
QApplication::sendPostedEvents();
ulong marker = XNextRequest(X11->display);
int nevents = 0;
do {
while (!d->interrupt) {
XEvent event;
if (!(flags & QEventLoop::ExcludeUserInputEvents)
&& !d->queuedUserInputEvents.isEmpty()) {
// process a pending user input event
event = d->queuedUserInputEvents.takeFirst();
} else if (XEventsQueued(X11->display, QueuedAlready)) {
// process events from the X server
XNextEvent(X11->display, &event);
if (flags & QEventLoop::ExcludeUserInputEvents) {
// queue user input events
switch (event.type) {
case ButtonPress:
case ButtonRelease:
case MotionNotify:
case XKeyPress:
case XKeyRelease:
case EnterNotify:
case LeaveNotify:
d->queuedUserInputEvents.append(event);
continue;
case ClientMessage:
// only keep the wm_take_focus and
// _qt_scrolldone protocols, queue all other
// client messages
if (event.xclient.format == 32) {
if (event.xclient.message_type == ATOM(WM_PROTOCOLS) &&
(Atom) event.xclient.data.l[0] == ATOM(WM_TAKE_FOCUS)) {
break;
} else if (event.xclient.message_type == ATOM(_QT_SCROLL_DONE)) {
break;
}
}
d->queuedUserInputEvents.append(event);
continue;
default:
break;
}
}
} else {
// no event to process
break;
}
// send through event filter
if (filterEvent(&event))
continue;
nevents++;
if (qApp->x11ProcessEvent(&event) == 1)
return true;
if (event.xany.serial >= marker) {
if (XEventsQueued(X11->display, QueuedAfterFlush))
flags &= ~QEventLoop::WaitForMoreEvents;
goto out;
}
}
} while (!d->interrupt && XEventsQueued(X11->display, QueuedAfterFlush));
out:
if (!d->interrupt) {
const uint exclude_all =
QEventLoop::ExcludeSocketNotifiers | QEventLoop::X11ExcludeTimers | QEventLoop::WaitForMoreEvents;
if (nevents > 0 && ((uint)flags & exclude_all) == exclude_all) {
QApplication::sendPostedEvents();
return nevents > 0;
}
// return true if we handled events, false otherwise
return QEventDispatcherUNIX::processEvents(flags) || (nevents > 0);
}
return nevents > 0;
}
bool QEventDispatcherWin32::processEvents(QEventLoop::ProcessEventsFlags flags)
{
Q_D(QEventDispatcherWin32);
if (!d->internalHwnd)
createInternalHwnd();
d->interrupt = false;
emit awake();
bool canWait;
bool retVal = false;
bool seenWM_QT_SENDPOSTEDEVENTS = false;
bool needWM_QT_SENDPOSTEDEVENTS = false;
do {
DWORD waitRet = 0;
HANDLE pHandles[MAXIMUM_WAIT_OBJECTS - 1];
QVarLengthArray<MSG> processedTimers;
while (!d->interrupt) {
DWORD nCount = d->winEventNotifierList.count();
Q_ASSERT(nCount < MAXIMUM_WAIT_OBJECTS - 1);
MSG msg;
bool haveMessage;
if (!(flags & QEventLoop::ExcludeUserInputEvents) && !d->queuedUserInputEvents.isEmpty()) {
// process queued user input events
haveMessage = true;
msg = d->queuedUserInputEvents.takeFirst();
} else if(!(flags & QEventLoop::ExcludeSocketNotifiers) && !d->queuedSocketEvents.isEmpty()) {
// process queued socket events
haveMessage = true;
msg = d->queuedSocketEvents.takeFirst();
} else {
haveMessage = PeekMessage(&msg, 0, 0, 0, PM_REMOVE);
if (haveMessage && (flags & QEventLoop::ExcludeUserInputEvents)
&& ((msg.message >= WM_KEYFIRST
&& msg.message <= WM_KEYLAST)
|| (msg.message >= WM_MOUSEFIRST
&& msg.message <= WM_MOUSELAST)
|| msg.message == WM_MOUSEWHEEL
|| msg.message == WM_MOUSEHWHEEL
|| msg.message == WM_TOUCH
#ifndef QT_NO_GESTURES
|| msg.message == WM_GESTURE
|| msg.message == WM_GESTURENOTIFY
#endif
|| msg.message == WM_CLOSE)) {
// queue user input events for later processing
haveMessage = false;
d->queuedUserInputEvents.append(msg);
}
if (haveMessage && (flags & QEventLoop::ExcludeSocketNotifiers)
&& (msg.message == WM_QT_SOCKETNOTIFIER && msg.hwnd == d->internalHwnd)) {
// queue socket events for later processing
haveMessage = false;
d->queuedSocketEvents.append(msg);
}
}
if (!haveMessage) {
// no message - check for signalled objects
for (int i=0; i<(int)nCount; i++)
pHandles[i] = d->winEventNotifierList.at(i)->handle();
waitRet = MsgWaitForMultipleObjectsEx(nCount, pHandles, 0, QS_ALLINPUT, MWMO_ALERTABLE);
if ((haveMessage = (waitRet == WAIT_OBJECT_0 + nCount))) {
// a new message has arrived, process it
continue;
}
}
if (haveMessage) {
#ifdef Q_OS_WINCE
// WinCE doesn't support hooks at all, so we have to call this by hand :(
(void) qt_GetMessageHook(0, PM_REMOVE, (LPARAM) &msg);
#endif
if (d->internalHwnd == msg.hwnd && msg.message == WM_QT_SENDPOSTEDEVENTS) {
if (seenWM_QT_SENDPOSTEDEVENTS) {
// when calling processEvents() "manually", we only want to send posted
// events once
needWM_QT_SENDPOSTEDEVENTS = true;
continue;
}
seenWM_QT_SENDPOSTEDEVENTS = true;
} else if (msg.message == WM_TIMER) {
// avoid live-lock by keeping track of the timers we've already sent
bool found = false;
for (int i = 0; !found && i < processedTimers.count(); ++i) {
const MSG processed = processedTimers.constData()[i];
found = (processed.wParam == msg.wParam && processed.hwnd == msg.hwnd && processed.lParam == msg.lParam);
}
if (found)
continue;
processedTimers.append(msg);
} else if (msg.message == WM_QUIT) {
if (QCoreApplication::instance())
QCoreApplication::instance()->quit();
return false;
}
if (!filterEvent(&msg)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
} else if (waitRet >= WAIT_OBJECT_0 && waitRet < WAIT_OBJECT_0 + nCount) {
d->activateEventNotifier(d->winEventNotifierList.at(waitRet - WAIT_OBJECT_0));
} else {
// nothing todo so break
break;
}
retVal = true;
}
// still nothing - wait for message or signalled objects
canWait = (!retVal
&& !d->interrupt
&& (flags & QEventLoop::WaitForMoreEvents));
if (canWait) {
DWORD nCount = d->winEventNotifierList.count();
Q_ASSERT(nCount < MAXIMUM_WAIT_OBJECTS - 1);
for (int i=0; i<(int)nCount; i++)
pHandles[i] = d->winEventNotifierList.at(i)->handle();
emit aboutToBlock();
waitRet = MsgWaitForMultipleObjectsEx(nCount, pHandles, INFINITE, QS_ALLINPUT, MWMO_ALERTABLE | MWMO_INPUTAVAILABLE);
emit awake();
if (waitRet >= WAIT_OBJECT_0 && waitRet < WAIT_OBJECT_0 + nCount) {
d->activateEventNotifier(d->winEventNotifierList.at(waitRet - WAIT_OBJECT_0));
retVal = true;
}
}
} while (canWait);
if (!seenWM_QT_SENDPOSTEDEVENTS && (flags & QEventLoop::EventLoopExec) == 0) {
// when called "manually", always send posted events
QCoreApplicationPrivate::sendPostedEvents(0, 0, d->threadData);
}
if (needWM_QT_SENDPOSTEDEVENTS)
PostMessage(d->internalHwnd, WM_QT_SENDPOSTEDEVENTS, 0, 0);
return retVal;
}
