qplatforminputcontext.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QPLATFORMINPUTCONTEXT_H
#define QPLATFORMINPUTCONTEXT_H
 
//
//  W A R N I N G
//  -------------
//
// This file is part of the QPA API and is not meant to be used
// in applications. Usage of this API may make your code
// source and binary incompatible with future versions of Qt.
//
 
#include <QtGui/qtguiglobal.h>
#include <QtGui/qinputmethod.h>
 
QT_BEGIN_NAMESPACE
 
class QPlatformInputContextPrivate;
 
class Q_GUI_EXPORT QPlatformInputContext : public QObject
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QPlatformInputContext)
 
public:
    enum Capability {
        HiddenTextCapability = 0x1
    };
 
    QPlatformInputContext();
    ~QPlatformInputContext();
 
    virtual bool isValid() const;
    virtual bool hasCapability(Capability capability) const;
 
    virtual void reset();
    virtual void commit();
    virtual void update(Qt::InputMethodQueries);
    virtual void invokeAction(QInputMethod::Action, int cursorPosition);
    virtual bool filterEvent(const QEvent *event);
    virtual QRectF keyboardRect() const;
    void emitKeyboardRectChanged();
 
    virtual bool isAnimating() const;
    void emitAnimatingChanged();
 
    virtual void showInputPanel();
    virtual void hideInputPanel();
    virtual bool isInputPanelVisible() const;
    void emitInputPanelVisibleChanged();
 
    virtual QLocale locale() const;
    void emitLocaleChanged();
    virtual Qt::LayoutDirection inputDirection() const;
    void emitInputDirectionChanged(Qt::LayoutDirection newDirection);
 
    virtual void setFocusObject(QObject *object);
    bool inputMethodAccepted() const;
 
    static void setSelectionOnFocusObject(const QPointF &anchorPos, const QPointF &cursorPos);
    static QVariant queryFocusObject(Qt::InputMethodQuery query, QPointF position);
    static QRectF inputItemRectangle();
    static QRectF inputItemClipRectangle();
    static QRectF cursorRectangle();
    static QRectF anchorRectangle();
    static QRectF keyboardRectangle();
 
private:
    friend class QGuiApplication;
    friend class QGuiApplicationPrivate;
    friend class QInputMethod;
 
    Qt::LayoutDirection m_inputDirection;
};
 
QT_END_NAMESPACE
 
#endif // QPLATFORMINPUTCONTEXT_H