summaryrefslogtreecommitdiffstats
path: root/src/plugins/platforms/windows/qwindowsinputcontext.h
blob: 2c683ee4e7728679435d03e5d738686e484aca4e (plain)
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
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the plugins 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.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QWINDOWSINPUTCONTEXT_H
#define QWINDOWSINPUTCONTEXT_H

#include "qtwindows_additional.h"

#include <QtGui/QPlatformInputContext>

QT_BEGIN_NAMESPACE

class QInputMethodEvent;

class QWindowsInputContext : public QPlatformInputContext
{
    struct CompositionContext
    {
        CompositionContext();

        HWND hwnd;
        bool haveCaret;
        QString composition;
        int position;
        bool isComposing;
    };
public:
    explicit QWindowsInputContext();
    ~QWindowsInputContext();

    virtual void reset();
    virtual void update(Qt::InputMethodQueries);

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

    static QWindowsInputContext *instance();

    bool startComposition(HWND hwnd);
    bool composition(HWND hwnd, LPARAM lParam);
    bool endComposition(HWND hwnd);

    int reconvertString(RECONVERTSTRING *reconv);

    bool handleIME_Request(WPARAM wparam, LPARAM lparam, LRESULT *result);

private:
    void initContext(HWND hwnd);
    void doneContext();
    void startContextComposition();
    void endContextComposition();

    const DWORD m_WM_MSIME_MOUSE;
    CompositionContext m_compositionContext;
    bool m_endCompositionRecursionGuard;
};

QT_END_NAMESPACE

#endif // QWINDOWSINPUTCONTEXT_H