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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the Qt Assistant of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QHELP_GLOBAL_H
#define QHELP_GLOBAL_H
#include <QtCore/qglobal.h>
#include <QtCore/QString>
#include <QtCore/QObject>
#include <QtCore/QRegExp>
#include <QtCore/QMutexLocker>
#include <QtGui/QTextDocument>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Help)
#if !defined(QT_SHARED) && !defined(QT_DLL)
# define QHELP_EXPORT
#elif defined(QHELP_LIB)
# define QHELP_EXPORT Q_DECL_EXPORT
#else
# define QHELP_EXPORT Q_DECL_IMPORT
#endif
class QHelpGlobal {
public:
static QString uniquifyConnectionName(const QString &name, void *pointer)
{
static int counter = 0;
static QMutex mutex;
QMutexLocker locker(&mutex);
if (++counter > 1000)
counter = 0;
return QString::fromLatin1("%1-%2-%3")
.arg(name).arg(long(pointer)).arg(counter);
};
static QString documentTitle(const QString &content)
{
QString title = QObject::tr("Untitled");
if (!content.isEmpty()) {
int start = content.indexOf(QLatin1String("<title>"), 0, Qt::CaseInsensitive) + 7;
int end = content.indexOf(QLatin1String("</title>"), 0, Qt::CaseInsensitive);
if ((end - start) > 0) {
title = content.mid(start, end - start);
if (Qt::mightBeRichText(title) || title.contains(QLatin1Char('&'))) {
QTextDocument doc;
doc.setHtml(title);
title = doc.toPlainText();
}
}
}
return title;
};
static QString charsetFromData(const QByteArray &data)
{
QString content = QString::fromUtf8(data.constData(), data.size());
int start =
content.indexOf(QLatin1String("<meta"), 0, Qt::CaseInsensitive);
if (start > 0) {
int end;
QRegExp r(QLatin1String("charset=([^\"\\s]+)"));
while (start != -1) {
end = content.indexOf(QLatin1Char('>'), start) + 1;
const QString &meta = content.mid(start, end - start).toLower();
if (r.indexIn(meta) != -1)
return r.cap(1);
start = content.indexOf(QLatin1String("<meta"), end,
Qt::CaseInsensitive);
}
}
return QLatin1String("utf-8");
}
};
QT_END_NAMESPACE
QT_END_HEADER
#endif // QHELP_GLOBAL_H
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