qca

qca_textfilter.h

00001 /*
00002  * qca_textfilter.h - Qt Cryptographic Architecture
00003  * Copyright (C) 2003-2005  Justin Karneges <justin@affinix.com>
00004  * Copyright (C) 2004,2005  Brad Hards <bradh@frogmouth.net>
00005  *
00006  * This library is free software; you can redistribute it and/or
00007  * modify it under the terms of the GNU Lesser General Public
00008  * License as published by the Free Software Foundation; either
00009  * version 2.1 of the License, or (at your option) any later version.
00010  *
00011  * This library is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Lesser General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public
00017  * License along with this library; if not, write to the Free Software
00018  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
00019  * 02110-1301  USA
00020  *
00021  */
00022 
00033 #ifndef QCA_TEXTFILTER_H
00034 #define QCA_TEXTFILTER_H
00035 
00036 #include "qca_core.h"
00037 
00038 namespace QCA {
00039 
00051 class QCA_EXPORT TextFilter : public Filter
00052 {
00053 public:
00060     TextFilter(Direction dir);
00061 
00068     void setup(Direction dir);
00069 
00073     Direction direction() const;
00074 
00086     MemoryRegion encode(const MemoryRegion &a);
00087 
00099     MemoryRegion decode(const MemoryRegion &a);
00100 
00111     QString arrayToString(const MemoryRegion &a);
00112 
00123     MemoryRegion stringToArray(const QString &s);
00124 
00135     QString encodeString(const QString &s);
00136 
00147     QString decodeString(const QString &s);
00148 
00149 protected:
00154     Direction _dir;
00155 };
00156 
00164 class QCA_EXPORT Hex : public TextFilter
00165 {
00166 public:
00175     Hex(Direction dir = Encode);
00176 
00182     virtual void clear();
00183 
00198     virtual MemoryRegion update(const MemoryRegion &a);
00199 
00208     virtual MemoryRegion final();
00209 
00215     virtual bool ok() const;
00216 
00217 private:
00218     Q_DISABLE_COPY(Hex)
00219 
00220     uchar val;
00221     bool partial;
00222     bool _ok;
00223 };
00224 
00232 class QCA_EXPORT Base64 : public TextFilter
00233 {
00234 public:
00243     Base64(Direction dir = Encode);
00244 
00248     bool lineBreaksEnabled() const;
00249 
00253     int lineBreaksColumn() const;
00254 
00263     void setLineBreaksEnabled(bool b);
00264 
00271     void setLineBreaksColumn(int column);
00272 
00277     virtual void clear();
00278 
00293     virtual MemoryRegion update(const MemoryRegion &a);
00294 
00303     virtual MemoryRegion final();
00304 
00310     virtual bool ok() const;
00311 
00312 private:
00313     Q_DISABLE_COPY(Base64)
00314 
00315     QByteArray partial;
00316     bool _ok;
00317     int col;
00318     bool _lb_enabled;
00319     int _lb_column;
00320 
00321     class Private;
00322     Private *d;
00323 };
00324 
00325 }
00326 
00327 #endif
qca

qca_textfilter.h

qca

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