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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qwsevent_qws.h"
QT_BEGIN_NAMESPACE
QWSEvent *QWSEvent::factory(int type)
{
QWSEvent *event = 0;
switch (type) {
case QWSEvent::Connected:
event = new QWSConnectedEvent;
break;
case QWSEvent::MaxWindowRect:
event = new QWSMaxWindowRectEvent;
break;
case QWSEvent::Mouse:
event = new QWSMouseEvent;
break;
case QWSEvent::Focus:
event = new QWSFocusEvent;
break;
case QWSEvent::Key:
event = new QWSKeyEvent;
break;
case QWSEvent::Region:
event = new QWSRegionEvent;
break;
case QWSEvent::Creation:
event = new QWSCreationEvent;
break;
#ifndef QT_NO_QWS_PROPERTIES
case QWSEvent::PropertyNotify:
event = new QWSPropertyNotifyEvent;
break;
case QWSEvent::PropertyReply:
event = new QWSPropertyReplyEvent;
break;
#endif // QT_NO_QWS_PROPERTIES
case QWSEvent::SelectionClear:
event = new QWSSelectionClearEvent;
break;
case QWSEvent::SelectionRequest:
event = new QWSSelectionRequestEvent;
break;
case QWSEvent::SelectionNotify:
event = new QWSSelectionNotifyEvent;
break;
#ifndef QT_NO_COP
case QWSEvent::QCopMessage:
event = new QWSQCopMessageEvent;
break;
#endif
case QWSEvent::WindowOperation:
event = new QWSWindowOperationEvent;
break;
#ifndef QT_NO_QWS_INPUTMETHODS
case QWSEvent::IMEvent:
event = new QWSIMEvent;
break;
case QWSEvent::IMQuery:
event = new QWSIMQueryEvent;
break;
case QWSEvent::IMInit:
event = new QWSIMInitEvent;
break;
#endif
#ifndef QT_NO_QWSEMBEDWIDGET
case QWSEvent::Embed:
event = new QWSEmbedEvent;
break;
#endif
case QWSEvent::Font:
event = new QWSFontEvent;
break;
case QWSEvent::ScreenTransformation:
event = new QWSScreenTransformationEvent;
break;
default:
qCritical("QWSEvent::factory() : Unknown event type %08x!", type);
}
return event;
}
/*!
\class QWSEvent
\ingroup qws
\brief The QWSEvent class encapsulates an event in Qt for Embedded Linux.
When running a \l{Qt for Embedded Linux} application, it either runs as a
server or connects to an existing server. All system generated
events are passed to the server application which then propagates
the event to the appropriate client.
Whenever the server receives an event, it queries its stack of
top-level windows to find the window containing the event's
position. Each window can identify the client application that
created it, and returns its ID to the server upon
request. Finally, the server forwards the event, encapsulated by
an instance of the QWSEvent class, to the appropriate client.
\image qt-embedded-client.png
The server communicates with the client applications over the UNIX
domain socket. You can retrieve direct access to all the events a
client receives from the server, by reimplementing QApplication's
\l {QApplication::}{qwsEventFilter()} function.
QWSEvent provides the \l Type enum specifying the origin of the
event. Internally, each type is represented by a QWSEvent
subclass, e.g., \c QWSKeyEvent.
\sa QWSServer, QWSClient, {Qt for Embedded Linux Architecture}
*/
/*!
\enum QWSEvent::Type
This enum describes the origin of the event.
\value NoEvent No event has occurred.
\value Connected An application has connected to the server.
\value Mouse A mouse button is pressed or released, or the mouse cursor is moved.
See also \l{Qt for Embedded Linux Pointer Handling}.
\value Focus A window has lost or received focus.
\value Key A key is pressed or released. See also \l{Qt for Embedded Linux Character Input}.
\value Region A region has changed.
\value Creation The server has created an ID, typically for a window.
\value PropertyNotify A property has changed.
\value PropertyReply The server is responding to a request for a property's value.
\value SelectionClear A selection is deleted.
\value SelectionRequest The server has queried for a selection.
\value SelectionNotify A new selection has been created.
\value MaxWindowRect The server has changed the maximum window for an application.
\value QCopMessage A new Qt Cop message has appeared. See also QCopChannel
\value WindowOperation A window operation, e.g. resizing, has occurred.
\value IMEvent An input method has been used to enter text for languages with
non-Latin alphabets. See also QWSInputMethod.
\value IMQuery An input method query for a specified property has occurred.
See also QWSInputMethod.
\value NEvent The number of events has changed.
\value Embed An event used internally to implement embedded windows. See also
QWSEmbedWidget.
\value ScreenTransformation An event used internally to notify the client processes
that the screen has changed for example, rotation, etc.
\omitvalue Font
\omitvalue IMInit
*/
/*!
\fn QWSMouseEvent *QWSEvent::asMouse()
\internal
*/
/*!
\fn int QWSEvent::window()
\internal
*/
/*!
\fn int QWSEvent::window() const
\internal
*/
/*!
\fn QWSEvent *QWSEvent::factory(int type)
\internal
*/
/*!
\fn QWSEvent::QWSEvent( int t, int len, char * ptr)
\internal
*/
QT_END_NAMESPACE
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