Initial import from the monolithic Qt.

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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 316 insertions, 0 deletions

diff --git a/src/corelib/io/qsettings_p.h b/src/corelib/io/qsettings_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtCore module 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 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 QSETTINGS_P_H
+#define QSETTINGS_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 "QtCore/qdatetime.h"
+#include "QtCore/qmap.h"
+#include "QtCore/qmutex.h"
+#include "QtCore/qiodevice.h"
+#include "QtCore/qstack.h"
+#include "QtCore/qstringlist.h"
+#ifndef QT_NO_QOBJECT
+#include "private/qobject_p.h"
+#endif
+#include "private/qscopedpointer_p.h"
+
+#ifdef Q_OS_WIN
+#include "QtCore/qt_windows.h"
+#endif
+
+QT_BEGIN_NAMESPACE
+
+#if defined(Q_WS_QWS) || defined(Q_WS_QPA)
+#define QT_QSETTINGS_ALWAYS_CASE_SENSITIVE_AND_FORGET_ORIGINAL_KEY_ORDER
+#endif
+
+// used in testing framework
+#define QSETTINGS_P_H_VERSION 3
+
+#ifdef QT_QSETTINGS_ALWAYS_CASE_SENSITIVE_AND_FORGET_ORIGINAL_KEY_ORDER
+static const Qt::CaseSensitivity IniCaseSensitivity = Qt::CaseSensitive;
+
+class QSettingsKey : public QString
+{
+public:
+    inline QSettingsKey(const QString &key, Qt::CaseSensitivity cs, int /* position */ = -1)
+        : QString(key) { Q_ASSERT(cs == Qt::CaseSensitive); Q_UNUSED(cs); }
+
+    inline QString originalCaseKey() const { return *this; }
+    inline int originalKeyPosition() const { return -1; }
+};
+#else
+static const Qt::CaseSensitivity IniCaseSensitivity = Qt::CaseInsensitive;
+
+class QSettingsKey : public QString
+{
+public:
+    inline QSettingsKey(const QString &key, Qt::CaseSensitivity cs, int position = -1)
+         : QString(key), theOriginalKey(key), theOriginalKeyPosition(position)
+    {
+        if (cs == Qt::CaseInsensitive)
+            QString::operator=(toLower());
+    }
+
+    inline QString originalCaseKey() const { return theOriginalKey; }
+    inline int originalKeyPosition() const { return theOriginalKeyPosition; }
+
+private:
+    QString theOriginalKey;
+    int theOriginalKeyPosition;
+};
+#endif
+
+typedef QMap<QSettingsKey, QByteArray> UnparsedSettingsMap;
+typedef QMap<QSettingsKey, QVariant> ParsedSettingsMap;
+
+class QSettingsGroup
+{
+public:
+    inline QSettingsGroup()
+        : num(-1), maxNum(-1) {}
+    inline QSettingsGroup(const QString &s)
+        : str(s), num(-1), maxNum(-1) {}
+    inline QSettingsGroup(const QString &s, bool guessArraySize)
+        : str(s), num(0), maxNum(guessArraySize ? 0 : -1) {}
+
+    inline QString name() const { return str; }
+    inline QString toString() const;
+    inline bool isArray() const { return num != -1; }
+    inline int arraySizeGuess() const { return maxNum; }
+    inline void setArrayIndex(int i)
+    { num = i + 1; if (maxNum != -1 && num > maxNum) maxNum = num; }
+
+    QString str;
+    int num;
+    int maxNum;
+};
+
+inline QString QSettingsGroup::toString() const
+{
+    QString result;
+    result = str;
+    if (num > 0) {
+        result += QLatin1Char('/');
+        result += QString::number(num);
+    }
+    return result;
+}
+
+class Q_AUTOTEST_EXPORT QConfFile
+{
+public:
+    ~QConfFile();
+
+    ParsedSettingsMap mergedKeyMap() const;
+    bool isWritable() const;
+
+    static QConfFile *fromName(const QString &name, bool _userPerms);
+    static void clearCache();
+
+    QString name;
+    QDateTime timeStamp;
+    qint64 size;
+    UnparsedSettingsMap unparsedIniSections;
+    ParsedSettingsMap originalKeys;
+    ParsedSettingsMap addedKeys;
+    ParsedSettingsMap removedKeys;
+    QAtomicInt ref;
+    QMutex mutex;
+    bool userPerms;
+
+private:
+#ifdef Q_DISABLE_COPY
+    QConfFile(const QConfFile &);
+    QConfFile &operator=(const QConfFile &);
+#endif
+    QConfFile(const QString &name, bool _userPerms);
+
+    friend class QConfFile_createsItself; // silences compiler warning
+};
+
+class Q_AUTOTEST_EXPORT QSettingsPrivate
+#ifndef QT_NO_QOBJECT
+    : public QObjectPrivate
+#endif
+{
+#ifdef QT_NO_QOBJECT
+    QSettings *q_ptr;
+#endif
+    Q_DECLARE_PUBLIC(QSettings)
+
+public:
+    QSettingsPrivate(QSettings::Format format);
+    QSettingsPrivate(QSettings::Format format, QSettings::Scope scope,
+                     const QString &organization, const QString &application);
+    virtual ~QSettingsPrivate();
+
+    virtual void remove(const QString &key) = 0;
+    virtual void set(const QString &key, const QVariant &value) = 0;
+    virtual bool get(const QString &key, QVariant *value) const = 0;
+
+    enum ChildSpec { AllKeys, ChildKeys, ChildGroups };
+    virtual QStringList children(const QString &prefix, ChildSpec spec) const = 0;
+
+    virtual void clear() = 0;
+    virtual void sync() = 0;
+    virtual void flush() = 0;
+    virtual bool isWritable() const = 0;
+    virtual QString fileName() const = 0;
+
+    QString actualKey(const QString &key) const;
+    void beginGroupOrArray(const QSettingsGroup &group);
+    void setStatus(QSettings::Status status) const;
+    void requestUpdate();
+    void update();
+
+    static QString normalizedKey(const QString &key);
+    static QSettingsPrivate *create(QSettings::Format format, QSettings::Scope scope,
+                                        const QString &organization, const QString &application);
+    static QSettingsPrivate *create(const QString &fileName, QSettings::Format format);
+
+    static void processChild(QString key, ChildSpec spec, QMap<QString, QString> &result);
+
+    // Variant streaming functions
+    static QStringList variantListToStringList(const QVariantList &l);
+    static QVariant stringListToVariantList(const QStringList &l);
+
+    // parser functions
+    static QString variantToString(const QVariant &v);
+    static QVariant stringToVariant(const QString &s);
+    static void iniEscapedKey(const QString &key, QByteArray &result);
+    static bool iniUnescapedKey(const QByteArray &key, int from, int to, QString &result);
+    static void iniEscapedString(const QString &str, QByteArray &result, QTextCodec *codec);
+    static void iniEscapedStringList(const QStringList &strs, QByteArray &result, QTextCodec *codec);
+    static bool iniUnescapedStringList(const QByteArray &str, int from, int to,
+                                       QString &stringResult, QStringList &stringListResult,
+                                       QTextCodec *codec);
+    static QStringList splitArgs(const QString &s, int idx);
+
+    /*
+    The numeric values of these enums define their search order. For example,
+    F_User | F_Organization is searched before F_System | F_Application,
+    because their values are respectively 1 and 2.
+    */
+    enum {
+       F_Application = 0x0,
+       F_Organization = 0x1,
+       F_User = 0x0,
+       F_System = 0x2,
+       NumConfFiles = 4
+    };
+
+    QSettings::Format format;
+    QSettings::Scope scope;
+    QString organizationName;
+    QString applicationName;
+    QTextCodec *iniCodec;
+
+protected:
+    QStack<QSettingsGroup> groupStack;
+    QString groupPrefix;
+    int spec;
+    bool fallbacks;
+    bool pendingChanges;
+    mutable QSettings::Status status;
+};
+
+class QConfFileSettingsPrivate : public QSettingsPrivate
+{
+public:
+    QConfFileSettingsPrivate(QSettings::Format format, QSettings::Scope scope,
+                             const QString &organization, const QString &application);
+    QConfFileSettingsPrivate(const QString &fileName, QSettings::Format format);
+    ~QConfFileSettingsPrivate();
+
+    void remove(const QString &key);
+    void set(const QString &key, const QVariant &value);
+    bool get(const QString &key, QVariant *value) const;
+
+    QStringList children(const QString &prefix, ChildSpec spec) const;
+
+    void clear();
+    void sync();
+    void flush();
+    bool isWritable() const;
+    QString fileName() const;
+
+    static bool readIniFile(const QByteArray &data, UnparsedSettingsMap *unparsedIniSections);
+    static bool readIniSection(const QSettingsKey &section, const QByteArray &data,
+                               ParsedSettingsMap *settingsMap, QTextCodec *codec);
+    static bool readIniLine(const QByteArray &data, int &dataPos, int &lineStart, int &lineLen,
+                            int &equalsPos);
+
+private:
+    void initFormat();
+    void initAccess();
+    void syncConfFile(int confFileNo);
+    bool writeIniFile(QIODevice &device, const ParsedSettingsMap &map);
+#ifdef Q_OS_MAC
+    bool readPlistFile(const QString &fileName, ParsedSettingsMap *map) const;
+    bool writePlistFile(const QString &fileName, const ParsedSettingsMap &map) const;
+#endif
+    void ensureAllSectionsParsed(QConfFile *confFile) const;
+    void ensureSectionParsed(QConfFile *confFile, const QSettingsKey &key) const;
+
+    QScopedSharedPointer<QConfFile> confFiles[NumConfFiles];
+    QSettings::ReadFunc readFunc;
+    QSettings::WriteFunc writeFunc;
+    QString extension;
+    Qt::CaseSensitivity caseSensitivity;
+    int nextPosition;
+};
+
+QT_END_NAMESPACE
+
+#endif // QSETTINGS_P_H