src/messaging/win32wce/qmailcodec.h
changeset 0 876b1a06bc25
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/messaging/win32wce/qmailcodec.h	Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,162 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 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 QMAILCODEC_H
+#define QMAILCODEC_H
+
+#include "qmailglobal.h"
+#include <QByteArray>
+#include <QDataStream>
+#include <QString>
+#include <QTextStream>
+
+class QTOPIAMAIL_EXPORT QMailCodec
+{
+public:
+    enum { ChunkCharacters = 8192 };
+
+    virtual ~QMailCodec();
+
+    virtual QString name() const = 0;
+
+    // Stream conversion interface including character translation
+    virtual void encode(QDataStream& out, QTextStream& in, const QString& charset = "UTF-8");
+    virtual void decode(QTextStream& out, QDataStream& in, const QString& charset);
+
+    // Stream conversion interface
+    virtual void encode(QDataStream& out, QDataStream& in);
+    virtual void decode(QDataStream& out, QDataStream& in);
+
+    // Convenience functions to encapsulate stream processing
+    QByteArray encode(const QString& in, const QString& charset = "UTF-8");
+    QString decode(const QByteArray& in, const QString& charset);
+
+    QByteArray encode(const QByteArray& in);
+    QByteArray decode(const QByteArray& in);
+
+    // Static helper functions
+    static void copy(QDataStream& out, QDataStream& in);
+    static void copy(QTextStream& out, QTextStream& in);
+
+protected:
+    // Helper functions to convert stream chunks
+    virtual void encodeChunk(QDataStream& out, const unsigned char* in, int length, bool finalChunk) = 0;
+    virtual void decodeChunk(QDataStream& out, const char* in, int length, bool finalChunk) = 0;
+};
+
+class QTOPIAMAIL_EXPORT QMailBase64Codec : public QMailCodec
+{
+public:
+    enum ContentType { Text, Binary };
+
+    QMailBase64Codec(ContentType content, int maximumLineLength = -1);
+
+    virtual QString name() const;
+
+protected:
+    virtual void encodeChunk(QDataStream& out, const unsigned char* in, int length, bool finalChunk);
+    virtual void decodeChunk(QDataStream& out, const char* in, int length, bool finalChunk);
+
+private:
+    ContentType _content;
+    int _maximumLineLength;
+
+    unsigned char _encodeBuffer[3];
+    unsigned char* _encodeBufferOut;
+    int _encodeLineCharsRemaining;
+
+    unsigned char _decodeBuffer[4];
+    unsigned char* _decodeBufferOut;
+    int _decodePaddingCount;
+
+    unsigned char _lastChar;
+};
+
+class QTOPIAMAIL_EXPORT QMailQuotedPrintableCodec : public QMailCodec
+{
+public:
+    enum ContentType { Text, Binary };
+    enum ConformanceType { Rfc2045, Rfc2047 };
+
+    QMailQuotedPrintableCodec(ContentType content, ConformanceType conformance, int maximumLineLength = -1);
+
+    virtual QString name() const;
+
+protected:
+    virtual void encodeChunk(QDataStream& out, const unsigned char* in, int length, bool finalChunk);
+    virtual void decodeChunk(QDataStream& out, const char* in, int length, bool finalChunk);
+
+private:
+    ContentType _content;
+    ConformanceType _conformance;
+    int _maximumLineLength;
+
+    int _encodeLineCharsRemaining;
+    unsigned char _encodeLastChar;
+
+    char _decodePrecedingInput;
+    unsigned char _decodeLastChar;
+};
+
+class QTOPIAMAIL_EXPORT QMailPassThroughCodec : public QMailCodec
+{
+    virtual QString name() const;
+
+protected:
+    virtual void encodeChunk(QDataStream& out, const unsigned char* in, int length, bool finalChunk);
+    virtual void decodeChunk(QDataStream& out, const char* in, int length, bool finalChunk);
+};
+
+class QTOPIAMAIL_EXPORT QMailLineEndingCodec : public QMailCodec
+{
+    virtual QString name() const;
+
+public:
+    QMailLineEndingCodec();
+
+protected:
+    virtual void encodeChunk(QDataStream& out, const unsigned char* in, int length, bool finalChunk);
+    virtual void decodeChunk(QDataStream& out, const char* in, int length, bool finalChunk);
+
+private:
+    unsigned char _lastChar;
+};
+
+#endif