1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#ifndef QABSTRACTTEXTDOCUMENTLAYOUT_P_H
5#define QABSTRACTTEXTDOCUMENTLAYOUT_P_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists purely as an
12// implementation detail. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include <QtGui/private/qtguiglobal_p.h>
19#include "private/qobject_p.h"
20#include "qtextdocument_p.h"
21#include "qabstracttextdocumentlayout.h"
22
23#include "QtCore/qhash.h"
24#include <QtCore/qpointer.h>
25
26QT_BEGIN_NAMESPACE
27
28struct QTextObjectHandler
29{
30 QTextObjectHandler() : iface(nullptr) {}
31 QTextObjectInterface *iface;
32 QPointer<QObject> component;
33};
34typedef QHash<int, QTextObjectHandler> HandlerHash;
35
36class Q_GUI_EXPORT QAbstractTextDocumentLayoutPrivate : public QObjectPrivate
37{
38public:
39 Q_DECLARE_PUBLIC(QAbstractTextDocumentLayout)
40
41 inline QAbstractTextDocumentLayoutPrivate()
42 : paintDevice(nullptr) {}
43 ~QAbstractTextDocumentLayoutPrivate();
44
45 inline void setDocument(QTextDocument *doc) {
46 document = doc;
47 docPrivate = nullptr;
48 if (doc)
49 docPrivate = QTextDocumentPrivate::get(document: doc);
50 }
51
52 static QAbstractTextDocumentLayoutPrivate *get(QAbstractTextDocumentLayout *layout)
53 {
54 return layout->d_func();
55 }
56
57 bool hasHandlers() const
58 {
59 return !handlers.isEmpty();
60 }
61
62 inline int _q_dynamicPageCountSlot() const
63 { return q_func()->pageCount(); }
64 inline QSizeF _q_dynamicDocumentSizeSlot() const
65 { return q_func()->documentSize(); }
66
67 HandlerHash handlers;
68
69 void _q_handlerDestroyed(QObject *obj);
70 QPaintDevice *paintDevice;
71
72 QTextDocument *document;
73 QTextDocumentPrivate *docPrivate;
74};
75
76QT_END_NAMESPACE
77
78#endif // QABSTRACTTEXTDOCUMENTLAYOUT_P_H
79

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source code of qtbase/src/gui/text/qabstracttextdocumentlayout_p.h