1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the QtQuick module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** GNU Lesser General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU Lesser
19** General Public License version 3 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL3 included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 3 requirements
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
24**
25** GNU General Public License Usage
26** Alternatively, this file may be used under the terms of the GNU
27** General Public License version 2.0 or (at your option) the GNU General
28** Public license version 3 or any later version approved by the KDE Free
29** Qt Foundation. The licenses are as published by the Free Software
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
31** included in the packaging of this file. Please review the following
32** information to ensure the GNU General Public License requirements will
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and
34** https://www.gnu.org/licenses/gpl-3.0.html.
35**
36** $QT_END_LICENSE$
37**
38****************************************************************************/
39
40#ifndef QQUICKTEXTDOCUMENT_P_H
41#define QQUICKTEXTDOCUMENT_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtCore/qhash.h>
55#include <QtCore/qvariant.h>
56#include <QtGui/qimage.h>
57#include <QtGui/qtextdocument.h>
58#include <QtGui/qabstracttextdocumentlayout.h>
59#include <QtGui/qtextlayout.h>
60
61QT_BEGIN_NAMESPACE
62
63class QQuickItem;
64class QQuickPixmap;
65class QQmlContext;
66
67class Q_AUTOTEST_EXPORT QQuickTextDocumentWithImageResources : public QTextDocument, public QTextObjectInterface
68{
69 Q_OBJECT
70 Q_INTERFACES(QTextObjectInterface)
71public:
72 QQuickTextDocumentWithImageResources(QQuickItem *parent);
73 virtual ~QQuickTextDocumentWithImageResources();
74
75 void setText(const QString &);
76#if QT_CONFIG(textmarkdownreader)
77 void setMarkdownText(const QString &);
78#endif
79 int resourcesLoading() const { return outstanding; }
80
81 QSizeF intrinsicSize(QTextDocument *doc, int posInDocument, const QTextFormat &format) override;
82 void drawObject(QPainter *p, const QRectF &rect, QTextDocument *doc, int posInDocument, const QTextFormat &format) override;
83
84 QImage image(const QTextImageFormat &format) const;
85
86public Q_SLOTS:
87 void clearResources();
88
89Q_SIGNALS:
90 void imagesLoaded();
91
92protected:
93 QVariant loadResource(int type, const QUrl &name) override;
94
95 QQuickPixmap *loadPixmap(QQmlContext *context, const QUrl &name);
96
97private Q_SLOTS:
98 void reset();
99 void requestFinished();
100
101private:
102 QHash<QUrl, QQuickPixmap *> m_resources;
103
104 int outstanding;
105 static QSet<QUrl> errors;
106};
107
108QT_END_NAMESPACE
109
110#endif // QQUICKDOCUMENT_P_H
111

source code of qtdeclarative/src/quick/items/qquicktextdocument_p.h