source: branches/vendor/trolltech/qt/current/tools/assistant/lib/qhelp_global.h @ 2

Last change on this file since 2 was 2, checked in by Dmitry A. Kuminov, 13 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.

File size: 4.2 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information (qt-info@nokia.com)
5**
6** This file is part of the Qt Assistant of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial Usage
10** Licensees holding valid Qt Commercial licenses may use this file in
11** accordance with the Qt Commercial License Agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and Nokia.
14**
15** GNU Lesser General Public License Usage
16** Alternatively, this file may be used under the terms of the GNU Lesser
17** General Public License version 2.1 as published by the Free Software
18** Foundation and appearing in the file LICENSE.LGPL included in the
19** packaging of this file.  Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
21** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
22**
23** In addition, as a special exception, Nokia gives you certain
24** additional rights. These rights are described in the Nokia Qt LGPL
25** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
26** package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file.  Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you are unsure which license is appropriate for your use, please
37** contact the sales department at qt-sales@nokia.com.
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#ifndef QHELP_GLOBAL_H
43#define QHELP_GLOBAL_H
44
45#include <QtCore/qglobal.h>
46#include <QtCore/QString>
47#include <QtCore/QObject>
48#include <QtCore/QRegExp>
49#include <QtCore/QMutexLocker>
50#include <QtGui/QTextDocument>
51
52QT_BEGIN_HEADER
53
54QT_BEGIN_NAMESPACE
55
56QT_MODULE(Help)
57
58#if !defined(QT_SHARED) && !defined(QT_DLL)
59#   define QHELP_EXPORT
60#elif defined(QHELP_LIB)
61#   define QHELP_EXPORT Q_DECL_EXPORT
62#else
63#   define QHELP_EXPORT Q_DECL_IMPORT
64#endif
65
66class QHelpGlobal {
67public:
68    static QString uniquifyConnectionName(const QString &name, void *pointer)
69    {
70        static int counter = 0;
71        static QMutex mutex;
72
73        QMutexLocker locker(&mutex);
74        if (++counter > 1000)
75            counter = 0;
76       
77        return QString::fromLatin1("%1-%2-%3")
78            .arg(name).arg(long(pointer)).arg(counter);
79    };
80
81    static QString documentTitle(const QString &content)
82    {
83        QString title = QObject::tr("Untitled");
84        if (!content.isEmpty()) {
85            int start = content.indexOf(QLatin1String("<title>"), 0, Qt::CaseInsensitive) + 7;
86            int end = content.indexOf(QLatin1String("</title>"), 0, Qt::CaseInsensitive);
87            if ((end - start) > 0) {
88                title = content.mid(start, end - start);
89                if (Qt::mightBeRichText(title) || title.contains(QLatin1Char('&'))) {
90                    QTextDocument doc;
91                    doc.setHtml(title);
92                    title = doc.toPlainText();
93                }
94            }
95        }
96        return title;
97    };
98
99    static QString charsetFromData(const QByteArray &data)
100    {
101        QString content = QString::fromUtf8(data.constData(), data.size());
102        int start =
103            content.indexOf(QLatin1String("<meta"), 0, Qt::CaseInsensitive);
104        if (start > 0) {
105            int end;
106            QRegExp r(QLatin1String("charset=([^\"\\s]+)"));
107            while (start != -1) {
108                end = content.indexOf(QLatin1Char('>'), start) + 1;
109                const QString &meta = content.mid(start, end - start).toLower();
110                if (r.indexIn(meta) != -1)
111                    return r.cap(1);
112                start = content.indexOf(QLatin1String("<meta"), end,
113                    Qt::CaseInsensitive);
114            }
115        }
116        return QLatin1String("utf-8");
117    }
118};
119
120QT_END_NAMESPACE
121
122QT_END_HEADER
123
124#endif // QHELP_GLOBAL_H
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