qabstracttextdocumentlayout_p.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 QABSTRACTTEXTDOCUMENTLAYOUT_P_H
#define QABSTRACTTEXTDOCUMENTLAYOUT_P_H
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
 
#include <QtGui/private/qtguiglobal_p.h>
#include "private/qobject_p.h"
#include "qtextdocument_p.h"
#include "qabstracttextdocumentlayout.h"
#include "QtCore/qhash.h"
 
QT_BEGIN_NAMESPACE
 
struct QTextObjectHandler
{
    QTextObjectHandler() : iface(nullptr) {}
    QTextObjectInterface *iface;
    QPointer<QObject> component;
};
typedef QHash<int, QTextObjectHandler> HandlerHash;
 
class Q_GUI_EXPORT QAbstractTextDocumentLayoutPrivate : public QObjectPrivate
{
public:
    Q_DECLARE_PUBLIC(QAbstractTextDocumentLayout)
 
    inline QAbstractTextDocumentLayoutPrivate()
        : paintDevice(nullptr) {}
    ~QAbstractTextDocumentLayoutPrivate();
 
    inline void setDocument(QTextDocument *doc) {
        document = doc;
        docPrivate = nullptr;
        if (doc)
            docPrivate = QTextDocumentPrivate::get(doc);
    }
 
    static QAbstractTextDocumentLayoutPrivate *get(QAbstractTextDocumentLayout *layout)
    {
        return layout->d_func();
    }
 
    bool hasHandlers() const
    {
        return !handlers.isEmpty();
    }
 
    inline int _q_dynamicPageCountSlot() const
    { return q_func()->pageCount(); }
    inline QSizeF _q_dynamicDocumentSizeSlot() const
    { return q_func()->documentSize(); }
 
    HandlerHash handlers;
 
    void _q_handlerDestroyed(QObject *obj);
    QPaintDevice *paintDevice;
 
    QTextDocument *document;
    QTextDocumentPrivate *docPrivate;
};
 
QT_END_NAMESPACE
 
#endif // QABSTRACTTEXTDOCUMENTLAYOUT_P_H