/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
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** 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
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** 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
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****************************************************************************/

#ifndef QWININPUTCONTEXT_P_H
#define QWININPUTCONTEXT_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of qinputcontext.cpp.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <qconfig.h>
#ifndef QT_NO_IM

#include "QtGui/qinputcontext.h"
#include "QtCore/qt_windows.h"

#if !defined(IMR_RECONVERTSTRING)
typedef struct tagRECONVERTSTRING {
    DWORD dwSize;
    DWORD dwVersion;
    DWORD dwStrLen;
    DWORD dwStrOffset;
    DWORD dwCompStrLen;
    DWORD dwCompStrOffset;
    DWORD dwTargetStrLen;
    DWORD dwTargetStrOffset;
} RECONVERTSTRING, *PRECONVERTSTRING;
#endif

QT_BEGIN_NAMESPACE

class QWinInputContext : public QInputContext
{
    Q_OBJECT
public:
    explicit QWinInputContext(QObject* parent = 0);
    virtual ~QWinInputContext();

    virtual QString identifierName() { return QLatin1String("win"); }
    virtual QString language();

    virtual void reset();
    virtual void update();

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

    virtual void setFocusWidget(QWidget *w);

    bool startComposition();
    bool endComposition();
    bool composition(LPARAM lparam);
    int reconvertString(RECONVERTSTRING *reconv);

    static void TranslateMessage(const MSG *msg);
    static LRESULT DefWindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);

    static void updateImeStatus(QWidget *w, bool hasFocus);
    static void enablePopupChild(QWidget *w, bool e);
    static void enable(QWidget *w, bool e);

private:
    void init();
    bool recursionGuard;
};

QT_END_NAMESPACE
#endif // QT_NO_IM
#endif // QWININPUTCONTEXT_P_H
