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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QORGANIZERITEMDETAIL_P_H
#define QORGANIZERITEMDETAIL_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qorganizeritemdetail.h"
#include <QSharedData>
#include <QString>
#include <QHash>
QTM_BEGIN_NAMESPACE
/*
Yet another string class
Mostly a wrapper around char *, where we do pointer equality checks before
a strcmp, given our common use case of equivalent pointers.
Also handles when things get passed in as a QString, by converting to Latin1
and caching the result, and caching conversions to QString (hit by definitionName a lot)
*/
class QOrganizerItemStringHolder
{
public:
QOrganizerItemStringHolder()
: m_str(0)
{
}
~QOrganizerItemStringHolder()
{
}
QOrganizerItemStringHolder(const QOrganizerItemStringHolder& other)
: m_str(other.m_str)
{
}
QOrganizerItemStringHolder& operator=(const QOrganizerItemStringHolder& other)
{
m_str = other.m_str; // checking for ==this is not worth the effort
return *this;
}
QOrganizerItemStringHolder(const char *str)
: m_str(str)
{
}
QOrganizerItemStringHolder& operator=(const char *str)
{
m_str = str;
return *this;
}
explicit QOrganizerItemStringHolder(const QString& str)
{
*this = str;
}
QOrganizerItemStringHolder& operator=(const QString& str)
{
m_str = s_allocated.value(str, 0);
if (!m_str) {
m_str = qstrdup(str.toLatin1().constData());
s_allocated.insert(str, const_cast<char*>(m_str)); // it's my pointer
}
return *this;
}
bool operator==(const char* other) const
{
return other == m_str || (qstrcmp(other, m_str) == 0);
}
bool operator==(const QString& other) const
{
return (s_allocated.value(other, 0) == m_str) || (other == QLatin1String(m_str));
}
bool operator==(const QOrganizerItemStringHolder& other) const
{
return (other.m_str == m_str) || (qstrcmp(other.m_str, m_str) == 0);
}
QString toQString() const
{
QString s = s_qstrings.value(m_str);
if (!s.isEmpty())
return s;
s = QString::fromLatin1(m_str);
s_qstrings.insert(m_str, s);
return s;
}
public:
// The only data we have
const char* m_str;
static QHash<QString, char*> s_allocated;
static QHash<const char *, QString> s_qstrings;
};
uint qHash(const QOrganizerItemStringHolder& key);
bool compareOrganizerItemDetail(const QOrganizerItemDetail &one, const QOrganizerItemDetail &other);
class QOrganizerItemDetailPrivate : public QSharedData
{
public:
QOrganizerItemDetailPrivate()
: QSharedData(),
m_id(lastDetailKey.fetchAndAddOrdered(1)),
m_access(QOrganizerItemDetail::NoConstraint)
{
}
QOrganizerItemDetailPrivate(const QOrganizerItemDetailPrivate& other)
: QSharedData(other),
m_id(other.m_id),
m_definitionName(other.m_definitionName),
m_values(other.m_values),
m_access(other.m_access)
{
}
~QOrganizerItemDetailPrivate()
{
}
int m_id; // internal, unique id.
QOrganizerItemStringHolder m_definitionName;
QHash<QOrganizerItemStringHolder, QVariant> m_values;
QOrganizerItemDetail::AccessConstraints m_access;
static QAtomicInt lastDetailKey;
static void setAccessConstraints(QOrganizerItemDetail *d, QOrganizerItemDetail::AccessConstraints constraint)
{
d->d->m_access = constraint;
}
static const QOrganizerItemDetailPrivate* detailPrivate(const QOrganizerItemDetail& detail)
{
return detail.d.constData();
}
};
QTM_END_NAMESPACE
Q_DECLARE_TYPEINFO(QTM_PREPEND_NAMESPACE(QOrganizerItemStringHolder), Q_MOVABLE_TYPE);
#endif
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