Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 368 insertions, 0 deletions

diff --git a/kviewshell/plugins/djvu/libdjvu/UnicodeByteStream.cpp b/kviewshell/plugins/djvu/libdjvu/UnicodeByteStream.cpp
new file mode 100644
index 00000000..8d4f0188
--- /dev/null
+++ b/kviewshell/plugins/djvu/libdjvu/UnicodeByteStream.cpp
@@ -0,0 +1,368 @@
+//C-  -*- C++ -*-
+//C- -------------------------------------------------------------------
+//C- DjVuLibre-3.5
+//C- Copyright (c) 2002  Leon Bottou and Yann Le Cun.
+//C- Copyright (c) 2001  AT&T
+//C-
+//C- This software is subject to, and may be distributed under, the
+//C- GNU General Public License, Version 2. The license should have
+//C- accompanied the software or you may obtain a copy of the license
+//C- from the Free Software Foundation at http://www.fsf.org .
+//C-
+//C- This program is distributed in the hope that it will be useful,
+//C- but WITHOUT ANY WARRANTY; without even the implied warranty of
+//C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//C- GNU General Public License for more details.
+//C- 
+//C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library
+//C- distributed by Lizardtech Software.  On July 19th 2002, Lizardtech 
+//C- Software authorized us to replace the original DjVu(r) Reference 
+//C- Library notice by the following text (see doc/lizard2002.djvu):
+//C-
+//C-  ------------------------------------------------------------------
+//C- | DjVu (r) Reference Library (v. 3.5)
+//C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved.
+//C- | The DjVu Reference Library is protected by U.S. Pat. No.
+//C- | 6,058,214 and patents pending.
+//C- |
+//C- | This software is subject to, and may be distributed under, the
+//C- | GNU General Public License, Version 2. The license should have
+//C- | accompanied the software or you may obtain a copy of the license
+//C- | from the Free Software Foundation at http://www.fsf.org .
+//C- |
+//C- | The computer code originally released by LizardTech under this
+//C- | license and unmodified by other parties is deemed "the LIZARDTECH
+//C- | ORIGINAL CODE."  Subject to any third party intellectual property
+//C- | claims, LizardTech grants recipient a worldwide, royalty-free, 
+//C- | non-exclusive license to make, use, sell, or otherwise dispose of 
+//C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the 
+//C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU 
+//C- | General Public License.   This grant only confers the right to 
+//C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to 
+//C- | the extent such infringement is reasonably necessary to enable 
+//C- | recipient to make, have made, practice, sell, or otherwise dispose 
+//C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to 
+//C- | any greater extent that may be necessary to utilize further 
+//C- | modifications or combinations.
+//C- |
+//C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY
+//C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+//C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF
+//C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+//C- +------------------------------------------------------------------
+//
+// $Id: UnicodeByteStream.cpp,v 1.8 2003/11/07 22:08:22 leonb Exp $
+// $Name: release_3_5_15 $
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+#if NEED_GNUG_PRAGMAS
+# pragma implementation
+#endif
+
+#include "UnicodeByteStream.h"
+#include "ByteStream.h"
+
+
+#ifdef HAVE_NAMESPACES
+namespace DJVU {
+# ifdef NOT_DEFINED // Just to fool emacs c++ mode
+}
+#endif
+#endif
+
+UnicodeByteStream::UnicodeByteStream(const UnicodeByteStream &uni)
+: bs(uni.bs), buffer(uni.buffer), bufferpos(uni.bufferpos), linesread(0)
+{
+  startpos=bs->tell();
+}
+
+UnicodeByteStream::UnicodeByteStream(
+  GP<ByteStream> ibs,const GStringRep::EncodeType et)
+: bs(ibs), bufferpos(0), linesread(0)
+{
+  buffer=GUTF8String::create(0,0,et);
+  startpos=bs->tell();
+}
+
+UnicodeByteStream::~UnicodeByteStream()
+{}
+
+static int
+CountLines(const GUTF8String &str)
+{
+  int retval=0;
+  static const unsigned long lf='\n';
+  for(int pos=0;(pos=str.search(lf,pos)+1)>0;++retval)
+    EMPTY_LOOP;
+  return retval;
+}
+
+void
+UnicodeByteStream::set_encodetype(const GStringRep::EncodeType et)
+{
+  seek(startpos,SEEK_SET);
+  bufferpos=0;
+  buffer=GUTF8String::create(0,0,et);
+}
+
+void
+UnicodeByteStream::set_encoding(const GUTF8String &xencoding)
+{
+  seek(startpos,SEEK_SET);
+  bufferpos=0;
+  buffer=GUTF8String::create(0,0,xencoding);
+}
+
+size_t
+UnicodeByteStream::read(void *buf, size_t size)
+{
+  bufferpos=0;
+  const int retval=bs->read(buf,size);
+  if(retval)
+  {
+    buffer=GUTF8String::create(
+      (unsigned char const *)buf,retval,buffer.get_remainder());
+  }else
+  {
+    buffer=GUTF8String::create(0,0,buffer.get_remainder());
+  }
+  return retval;
+}
+
+size_t
+UnicodeByteStream::write(const void *buf, size_t size)
+{
+  bufferpos=0;
+  buffer=GUTF8String::create(0,0,buffer.get_remainder());
+  return bs->write(buf,size);
+}
+
+long 
+UnicodeByteStream::tell(void) const
+{
+  return bs->tell();
+}
+
+UnicodeByteStream & 
+UnicodeByteStream::operator=(UnicodeByteStream &uni)
+{
+  bs=uni.bs;
+  bufferpos=uni.bufferpos;
+  buffer=uni.buffer;
+  return *this;
+}
+
+int 
+UnicodeByteStream::seek
+(long offset, int whence, bool nothrow)
+{
+  int retval=bs->seek(offset,whence,nothrow);
+  bufferpos=0;
+  buffer=GUTF8String::create(0,0,buffer.get_remainder());
+  return retval;
+}
+
+void 
+UnicodeByteStream::flush(void)
+{
+  bs->flush();
+  bufferpos=0;
+  buffer=GUTF8String::create(0,0,buffer.get_remainder());
+}
+
+
+
+GUTF8String
+UnicodeByteStream::gets(
+  size_t const t,unsigned long const stopat,bool const inclusive)
+{
+  GUTF8String retval;
+  unsigned int len=buffer.length()-bufferpos;
+  if(!len)
+  {
+    int i;
+    char *buf;
+  	static const size_t bufsize=327680;
+    GPBuffer<char> gbuf(buf,bufsize);
+    while((i=read(buf,bufsize)>0))
+    {
+      if((len=buffer.length()-bufferpos))
+        break;
+    }
+  }
+  if(len)
+  {
+    int i=buffer.search((char)stopat,bufferpos);
+    if(i>=0)
+    {
+      if(inclusive)
+      {
+        ++i;
+      }
+      if(t&&(i>(int)t+bufferpos))
+      {
+        i=t+bufferpos;
+      }
+      if(i>bufferpos)
+      {
+        retval=buffer.substr(bufferpos,i-bufferpos);
+      }
+      bufferpos=i;
+      linesread+=CountLines(retval);
+    }else
+    {
+      retval=buffer.substr(bufferpos,len);
+      bufferpos=buffer.length();
+      linesread+=CountLines(retval);
+      retval+=gets(t?(t-(i-bufferpos)):0,stopat,inclusive);
+    }
+  }
+  return retval;
+}
+
+XMLByteStream::XMLByteStream(UnicodeByteStream &uni)
+: UnicodeByteStream(uni) {}
+
+XMLByteStream::XMLByteStream(GP<ByteStream> &ibs) 
+: UnicodeByteStream(ibs,GStringRep::XOTHER)
+{}
+
+GP<XMLByteStream>
+XMLByteStream::create(GP<ByteStream> ibs) 
+{
+  XMLByteStream *xml=new XMLByteStream(ibs);
+  GP<XMLByteStream> retval=xml;
+  xml->init();
+  return retval;
+}
+
+void
+XMLByteStream::init(void)
+{
+  unsigned char buf[4];
+  GP<ByteStream> ibs=bs;
+  bufferpos=0;
+  bs->readall(buf,sizeof(buf));
+  const unsigned int i=(buf[0]<<8)+buf[1];
+  switch(i)
+  {
+    case 0x0000:
+    {
+      const unsigned int j=(buf[2]<<8)+buf[3];
+      switch(j)
+      {
+        case 0x003C:
+        {
+          buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUCS4BE);
+          break;
+        }
+        case 0x3C00:
+        {
+          buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUCS4_2143);
+          break;
+        }
+        case 0xFEFF:
+        {
+          buffer=GUTF8String::create(0,0,GStringRep::XUCS4BE);
+          startpos+=sizeof(buf);
+          break;
+        }
+        case 0xFFFE:
+        {
+          buffer=GUTF8String::create(0,0,GStringRep::XUCS4_2143);
+          startpos+=sizeof(buf);
+          break;
+        }
+        default:
+        {
+          buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUTF8);
+          break;
+        }
+      }
+    }
+    case 0x003C:
+    {
+      const unsigned int j=(buf[2]<<8)+buf[3];
+      switch(j)
+      {
+        case 0x0000:
+          buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUCS4_3412);
+          break;
+        case 0x003F:
+          buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUTF16BE);
+          break;
+        default:
+          buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUTF8);
+          break;
+      }
+      break;
+    }
+    case 0x3C00:
+    {
+      const unsigned int j=(buf[2]<<8)+buf[3];
+      switch(j)
+      {
+        case 0x0000:
+          buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUCS4LE);
+          break;
+        case 0x3F00:
+          buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUTF16LE);
+          break;
+        default:
+          buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUTF8);
+          break;
+      }
+      break;
+    }
+    case 0x4C6F:
+    {
+      const unsigned int j=(buf[2]<<8)+buf[3];
+      buffer=GUTF8String::create(buf,sizeof(buf),
+         (j == 0xA794)?(GStringRep::XEBCDIC):(GStringRep::XUTF8));
+      break;
+    }
+    case 0xFFFE:
+    {
+      buffer=GUTF8String::create(buf+2,sizeof(buf)-2,GStringRep::XUTF16LE);
+      startpos+=2;
+      break;
+    }
+    case 0xFEFF:
+    {
+      buffer=GUTF8String::create(buf+2,sizeof(buf)-2,GStringRep::XUTF16BE);
+      startpos+=2;
+      break;
+    }
+    case 0xEFBB:
+    {
+      if(buf[2] == 0xBF)
+      {
+        buffer=GUTF8String::create(buf+3,sizeof(buf)-3,GStringRep::XUTF8);
+        startpos+=3;
+      }else
+      {
+        buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUTF8);
+      }
+      break;
+    }
+    case 0x3C3F:
+    default:
+    {
+      buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUTF8);
+    }
+  }
+  bs=ibs;
+}
+
+XMLByteStream::~XMLByteStream()
+{}
+
+
+#ifdef HAVE_NAMESPACES
+}
+# ifndef NOT_USING_DJVU_NAMESPACE
+using namespace DJVU;
+# endif
+#endif