/usr/include/QtGStreamer/QGlib/quark.h is in libqtgstreamer-dev 1.2.0-3.
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Copyright (C) 2009-2010 George Kiagiadakis <kiagiadakis.george@gmail.com>
Copyright (C) 2010 Collabora Ltd.
@author George Kiagiadakis <george.kiagiadakis@collabora.co.uk>
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef QGLIB_QUARK_H
#define QGLIB_QUARK_H
#include "global.h"
#include <QtCore/QString>
namespace QGlib {
/*! \headerfile quark.h <QGlib/Quark>
* \brief Wrapper class for GQuark
*
* Quarks are associations between strings and integer identifiers.
* Given either the string or the Quark identifier it is possible to retrieve the other.
*
* To create a new quark from a string, use fromString().
*
* To find the string corresponding to a given Quark, use toString().
*
* To find the Quark corresponding to a given string, use tryString().
*
* \note This class is a thin wrapper around a quint32. There is no overhead in copying
* it around, since it is just an integer.
*/
class QTGLIB_EXPORT Quark
{
public:
inline Quark(quint32 gquark = 0) : m_quark(gquark) {}
/*! Creates a new Quark given a string \a str. */
static Quark fromString(const char *str);
static inline Quark fromString(const QString & str); ///< \overload
/*! Finds an existing Quark that corresponds to the given string \a str.
* If the Quark is not found, an invalid quark (equal to 0) is returned. */
static Quark tryString(const char *str);
static inline Quark tryString(const QString & str); ///< \overload
/*! Retrieves the string that corresponds to this Quark. */
QString toString() const;
inline operator quint32() const { return m_quark; }
private:
quint32 m_quark;
};
//static
inline Quark Quark::fromString(const QString & str)
{
return fromString(str.toUtf8().constData());
}
//static
inline Quark Quark::tryString(const QString & str)
{
return tryString(str.toUtf8().constData());
}
} //namespace QGlib
#endif // QGLIB_QUARK_H
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