/**************************************************************************** | |
** | |
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). | |
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** This file is part of the QtGui module of the Qt Toolkit. | |
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** $QT_BEGIN_LICENSE:LGPL$ | |
** GNU Lesser General Public License Usage | |
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** rights. These rights are described in the Nokia Qt LGPL Exception | |
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. | |
** | |
** GNU General Public License Usage | |
** Alternatively, this file may be used under the terms of the GNU General | |
** Public License version 3.0 as published by the Free Software Foundation | |
** and appearing in the file LICENSE.GPL included in the packaging of this | |
** file. Please review the following information to ensure the GNU General | |
** Public License version 3.0 requirements will be met: | |
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** $QT_END_LICENSE$ | |
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****************************************************************************/ | |
#include "qplatformdefs.h" | |
#include "qapplication.h" | |
#include "private/qwscommand_qws_p.h" | |
#include "qwsdisplay_qws.h" | |
#include "qwsevent_qws.h" | |
#include "qwindowsystem_qws.h" | |
#include "qeventdispatcher_qws_p.h" | |
#include "private/qeventdispatcher_unix_p.h" | |
#ifndef QT_NO_THREAD | |
# include "qmutex.h" | |
#endif | |
#include <errno.h> | |
QT_BEGIN_NAMESPACE | |
QT_USE_NAMESPACE | |
class QEventDispatcherQWSPrivate : public QEventDispatcherUNIXPrivate | |
{ | |
Q_DECLARE_PUBLIC(QEventDispatcherQWS) | |
public: | |
inline QEventDispatcherQWSPrivate() | |
{ } | |
QList<QWSEvent*> queuedUserInputEvents; | |
}; | |
QEventDispatcherQWS::QEventDispatcherQWS(QObject *parent) | |
: QEventDispatcherUNIX(*new QEventDispatcherQWSPrivate, parent) | |
{ } | |
QEventDispatcherQWS::~QEventDispatcherQWS() | |
{ } | |
// from qapplication_qws.cpp | |
extern QWSDisplay* qt_fbdpy; // QWS `display' | |
//#define ZERO_FOR_THE_MOMENT | |
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); | |
} | |
bool QEventDispatcherQWS::hasPendingEvents() | |
{ | |
extern uint qGlobalPostedEventsCount(); // from qapplication.cpp | |
return qGlobalPostedEventsCount() || qt_fbdpy->eventPending(); | |
} | |
void QEventDispatcherQWS::startingUp() | |
{ | |
} | |
void QEventDispatcherQWS::closingDown() | |
{ | |
} | |
void QEventDispatcherQWS::flush() | |
{ | |
if(qApp) | |
qApp->sendPostedEvents(); | |
(void)qt_fbdpy->eventPending(); // flush | |
} | |
int QEventDispatcherQWS::select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, | |
timeval *timeout) | |
{ | |
return QEventDispatcherUNIX::select(nfds, readfds, writefds, exceptfds, timeout); | |
} | |
QT_END_NAMESPACE |