/****************************************************************************

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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** Contact: Nokia Corporation (qt-info@nokia.com)

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** This file is part of the QtGui module of the Qt Toolkit.

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** 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 Technology Preview License Agreement accompanying

** this package.

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** 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

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****************************************************************************/

/****************************************************************************

**

** Definition of QInputContext class

**

** Copyright (C) 2003-2004 immodule for Qt Project.  All rights reserved.

**

** This file is written to contribute to Nokia Corporation and/or its subsidiary(-ies) under their own

** license. You may use this file under your Qt license. Following

** description is copied from their original file headers. Contact

** immodule-qt@freedesktop.org if any conditions of this licensing are

** not clear to you.

**

****************************************************************************/

#ifndef QINPUTCONTEXT_H

#define QINPUTCONTEXT_H

#include <QtCore/qobject.h>

#include <QtCore/qglobal.h>

#include <QtGui/qevent.h>

#include <QtCore/qstring.h>

#include <QtCore/qlist.h>

#include <QtGui/qaction.h>

#ifndef QT_NO_IM

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

class QWidget;

class QFont;

class QPopupMenu;

class QInputContextPrivate;

#ifdef Q_OS_SYMBIAN

class QSymbianEvent;

#endif

class Q_GUI_EXPORT QInputContext : public QObject

{

    Q_OBJECT

    Q_DECLARE_PRIVATE(QInputContext)

public:

    explicit QInputContext(QObject* parent = 0);

    virtual ~QInputContext();

    virtual QString identifierName() = 0;

    virtual QString language() = 0;

    virtual void reset() = 0;

    virtual void update();

    virtual void mouseHandler( int x, QMouseEvent *event);

    virtual QFont font() const;

    virtual bool isComposing() const = 0;

    QWidget *focusWidget() const;

    virtual void setFocusWidget( QWidget *w );

    virtual void widgetDestroyed(QWidget *w);

    virtual QList<QAction *> actions();

#if defined(Q_WS_X11)

    virtual bool x11FilterEvent( QWidget *keywidget, XEvent *event );

#endif // Q_WS_X11

#if defined(Q_OS_SYMBIAN)

    virtual bool symbianFilterEvent( QWidget *keywidget, const QSymbianEvent *event );

#endif // Q_OS_SYMBIAN

    virtual bool filterEvent( const QEvent *event );

    void sendEvent(const QInputMethodEvent &event);

    enum StandardFormat {

        PreeditFormat,

        SelectionFormat

    };

    QTextFormat standardFormat(StandardFormat s) const;

private:

    friend class QWidget;

    friend class QWidgetPrivate;

    friend class QInputContextFactory;

    friend class QApplication;

private:   // Disabled copy constructor and operator=

    QInputContext( const QInputContext & );

    QInputContext &operator=( const QInputContext & );

};

QT_END_NAMESPACE

QT_END_HEADER

#endif //Q_NO_IM

#endif // QINPUTCONTEXT_H