Long live Qt 4.5!

1 files changed, 253 insertions, 0 deletions

diff --git a/src/corelib/io/qiodevice.h b/src/corelib/io/qiodevice.h
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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 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 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 QIODEVICE_H
+#define QIODEVICE_H
+
+#ifndef QT_NO_QOBJECT
+#include <QtCore/qobject.h>
+#else
+#include <QtCore/qobjectdefs.h>
+#endif
+#include <QtCore/qstring.h>
+
+#ifdef open
+#error qiodevice.h must be included before any header file that defines open
+#endif
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Core)
+
+class QByteArray;
+class QIODevicePrivate;
+
+class Q_CORE_EXPORT QIODevice
+#ifndef QT_NO_QOBJECT
+    : public QObject
+#endif
+{
+#ifndef QT_NO_QOBJECT
+    Q_OBJECT
+#endif
+public:
+    enum OpenModeFlag {
+        NotOpen = 0x0000,
+        ReadOnly = 0x0001,
+        WriteOnly = 0x0002,
+        ReadWrite = ReadOnly | WriteOnly,
+        Append = 0x0004,
+        Truncate = 0x0008,
+        Text = 0x0010,
+        Unbuffered = 0x0020
+    };
+    Q_DECLARE_FLAGS(OpenMode, OpenModeFlag)
+
+    QIODevice();
+#ifndef QT_NO_QOBJECT
+    explicit QIODevice(QObject *parent);
+#endif
+    virtual ~QIODevice();
+
+    OpenMode openMode() const;
+
+    void setTextModeEnabled(bool enabled);
+    bool isTextModeEnabled() const;
+
+    bool isOpen() const;
+    bool isReadable() const;
+    bool isWritable() const;
+    virtual bool isSequential() const;
+
+    virtual bool open(OpenMode mode);
+    virtual void close();
+
+    // ### Qt 5: pos() and seek() should not be virtual, and
+    // ### seek() should call a virtual seekData() function.
+    virtual qint64 pos() const;
+    virtual qint64 size() const;
+    virtual bool seek(qint64 pos);
+    virtual bool atEnd() const;
+    virtual bool reset();
+
+    virtual qint64 bytesAvailable() const;
+    virtual qint64 bytesToWrite() const;
+
+    qint64 read(char *data, qint64 maxlen);
+    QByteArray read(qint64 maxlen);
+    QByteArray readAll();
+    qint64 readLine(char *data, qint64 maxlen);
+    QByteArray readLine(qint64 maxlen = 0);
+    virtual bool canReadLine() const;
+
+    qint64 write(const char *data, qint64 len);
+    qint64 write(const char *data);
+    inline qint64 write(const QByteArray &data)
+    { return write(data.constData(), data.size()); }
+
+    qint64 peek(char *data, qint64 maxlen);
+    QByteArray peek(qint64 maxlen);
+
+    virtual bool waitForReadyRead(int msecs);
+    virtual bool waitForBytesWritten(int msecs);
+
+    void ungetChar(char c);
+    bool putChar(char c);
+    bool getChar(char *c);
+
+    QString errorString() const;
+
+#ifndef QT_NO_QOBJECT
+Q_SIGNALS:
+    void readyRead();
+    void bytesWritten(qint64 bytes);
+    void aboutToClose();
+    void readChannelFinished();
+#endif
+
+protected:
+#ifdef QT_NO_QOBJECT
+    QIODevice(QIODevicePrivate &dd);
+#else
+    QIODevice(QIODevicePrivate &dd, QObject *parent = 0);
+#endif
+    virtual qint64 readData(char *data, qint64 maxlen) = 0;
+    virtual qint64 readLineData(char *data, qint64 maxlen);
+    virtual qint64 writeData(const char *data, qint64 len) = 0;
+
+    void setOpenMode(OpenMode openMode);
+
+    void setErrorString(const QString &errorString);
+
+#ifdef QT_NO_QOBJECT
+    QIODevicePrivate *d_ptr;
+#endif
+
+private:
+    Q_DECLARE_PRIVATE(QIODevice)
+    Q_DISABLE_COPY(QIODevice)
+
+#ifdef QT3_SUPPORT
+public:
+    typedef qint64 Offset;
+
+    inline QT3_SUPPORT int flags() const { return static_cast<int>(openMode()); }
+    inline QT3_SUPPORT int mode() const { return static_cast<int>(openMode()); }
+    inline QT3_SUPPORT int state() const;
+
+    inline QT3_SUPPORT bool isDirectAccess() const { return !isSequential(); }
+    inline QT3_SUPPORT bool isSequentialAccess() const { return isSequential(); }
+    inline QT3_SUPPORT bool isCombinedAccess() const { return false; }
+    inline QT3_SUPPORT bool isBuffered() const { return true; }
+    inline QT3_SUPPORT bool isRaw() const { return false; }
+    inline QT3_SUPPORT bool isSynchronous() const { return true; }
+    inline QT3_SUPPORT bool isAsynchronous() const { return false; }
+    inline QT3_SUPPORT bool isTranslated() const { return (openMode() & Text) != 0; }
+    inline QT3_SUPPORT bool isInactive() const { return !isOpen(); }
+
+    typedef int Status;
+    QT3_SUPPORT Status status() const;
+    QT3_SUPPORT void resetStatus();
+
+    inline QT3_SUPPORT Offset at() const { return pos(); }
+    inline QT3_SUPPORT bool at(Offset offset) { return seek(offset); }
+
+    inline QT3_SUPPORT qint64 readBlock(char *data, quint64 maxlen) { return read(data, maxlen); }
+    inline QT3_SUPPORT qint64 writeBlock(const char *data, quint64 len) { return write(data, len); }
+    inline QT3_SUPPORT qint64 writeBlock(const QByteArray &data) { return write(data); }
+
+    inline QT3_SUPPORT int getch() { char c; return getChar(&c) ? int(uchar(c)) : -1; }
+    inline QT3_SUPPORT int putch(int c) { return putChar(c) ? int(uchar(c)) : -1; }
+    inline QT3_SUPPORT int ungetch(int c) { ungetChar(uchar(c)); return c; }
+#endif
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QIODevice::OpenMode)
+
+#ifdef QT3_SUPPORT
+static QT3_SUPPORT_VARIABLE const uint IO_Direct = 0x0100;
+static QT3_SUPPORT_VARIABLE const uint IO_Sequential = 0x0200;
+static QT3_SUPPORT_VARIABLE const uint IO_Combined = 0x0300;
+static QT3_SUPPORT_VARIABLE const uint IO_TypeMask = 0x0300;
+
+static QT3_SUPPORT_VARIABLE const uint IO_Raw = 0x0000;
+static QT3_SUPPORT_VARIABLE const uint IO_Async = 0x0000;
+
+#define IO_ReadOnly QIODevice::ReadOnly
+#define IO_WriteOnly QIODevice::WriteOnly
+#define IO_ReadWrite QIODevice::ReadWrite
+#define IO_Append QIODevice::Append
+#define IO_Truncate QIODevice::Truncate
+#define IO_Translate QIODevice::Text
+#define IO_ModeMask 0x00ff
+
+static QT3_SUPPORT_VARIABLE const uint IO_Open = 0x1000;
+static QT3_SUPPORT_VARIABLE const uint IO_StateMask = 0xf000;
+
+static QT3_SUPPORT_VARIABLE const uint IO_Ok = 0;
+static QT3_SUPPORT_VARIABLE const uint IO_ReadError = 1;
+static QT3_SUPPORT_VARIABLE const uint IO_WriteError = 2;
+static QT3_SUPPORT_VARIABLE const uint IO_FatalError = 3;
+static QT3_SUPPORT_VARIABLE const uint IO_ResourceError = 4;
+static QT3_SUPPORT_VARIABLE const uint IO_OpenError = 5;
+static QT3_SUPPORT_VARIABLE const uint IO_ConnectError = 5;
+static QT3_SUPPORT_VARIABLE const uint IO_AbortError = 6;
+static QT3_SUPPORT_VARIABLE const uint IO_TimeOutError = 7;
+static QT3_SUPPORT_VARIABLE const uint IO_UnspecifiedError	= 8;
+
+inline QT3_SUPPORT int QIODevice::state() const
+{
+    return isOpen() ? 0x1000 : 0;
+}
+#endif
+
+#if !defined(QT_NO_DEBUG_STREAM)
+class QDebug;
+Q_CORE_EXPORT QDebug operator<<(QDebug debug, QIODevice::OpenMode modes);
+#endif
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QIODEVICE_H