1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** 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:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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
|
