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/kdeutils@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 5099 insertions, 0 deletions

diff --git a/khexedit/hexbuffer.cc b/khexedit/hexbuffer.cc
new file mode 100644
index 0000000..0c1d598
--- /dev/null
+++ b/khexedit/hexbuffer.cc
@@ -0,0 +1,5099 @@
+/*
+ *   khexedit - Versatile hex editor
+ *   Copyright (C) 1999-2000 Espen Sand, espensa@online.no
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <qfileinfo.h>
+
+#include <klocale.h>
+#include <kglobal.h>
+#include <kglobalsettings.h>
+#include <knotifyclient.h>
+
+#include "hexbuffer.h"
+#include "hexerror.h"
+
+//
+// There are some comments marked with a "// ##" at various places.
+// These indicate a patch from Sergey A. Sukiyazov which I have applied
+// "as is" for now. The number of QString::fromLocal8Bit in this modification
+// indicates that I should perhaps modify code elsewhere as well 
+// (espen 2000-11-26)
+//
+
+// #define DEBUG_FIXED_SIZE 1024
+// #define PRINTER_TEST
+
+
+CHexAction::CHexAction( HexAction action, uint offset )
+{
+  mAction   = action;
+  mOffset   = offset;
+  mSize     = 0;
+  mData     = 0;
+  mDataSize = 0;
+  mNext     = 0;
+}
+
+CHexAction::~CHexAction( void )
+{
+  delete [] mData;
+}
+
+void CHexAction::setData( uint size, char *data, uint dataSize )
+{
+
+  if( data != 0 && dataSize > 0 )
+  {
+    mData = new char[ dataSize ];
+    if( mData == 0 )
+    {
+      return;
+    }
+    memcpy( mData, data, dataSize );
+    mDataSize = dataSize;
+  }
+  else
+  {
+    mDataSize = 0;
+    mData = 0;
+  }
+  mSize = size;
+}
+
+
+CHexActionGroup::CHexActionGroup( uint startOffset, uint startBit )
+{
+  mStartOffset = startOffset;
+  mStartBit    = startBit;
+  mHexAction   = 0;
+}
+
+CHexActionGroup::~CHexActionGroup( void )
+{
+  CHexAction *ptr = mHexAction;
+  while( ptr != 0 )
+  {
+    CHexAction *next = ptr->mNext;
+    delete ptr;
+    ptr = next;
+  }
+}
+
+void CHexActionGroup::insertAction( CHexAction *hexAction )
+{
+  hexAction->mNext = mHexAction;
+  mHexAction = hexAction;
+}
+
+
+
+int SFilterControl::execute( uchar *dest, uchar *src, uint size )
+{
+  if( size == 0 )
+  {
+    return( Err_IllegalArgument );
+  }
+
+  uint numElement = operand.size();
+  if( operation == OperandAndData )
+  {
+    if( numElement == 0 ) { return( Err_IllegalArgument ); }
+    if( forward == true )
+    {
+      for( uint i = 0; i < size; )
+      {
+	for( uint j = 0; i < size && j < numElement; j++, i++ )
+	{
+	  dest[i] = src[i] & operand[j];
+	}
+      }
+    }
+    else
+    {
+      for( uint i = size; i > 0; )
+      {
+	for( uint j = numElement; i > 0 && j > 0; j--, i-- )
+	{
+	  dest[i-1] = src[i-1] & operand[j-1];
+	}
+      }
+    }
+  }
+  else if( operation == OperandOrData )
+  {
+    if( numElement == 0 ) { return( Err_IllegalArgument ); }
+    if( forward == true )
+    {
+      for( uint i = 0; i < size; )
+      {
+	for( uint j = 0; i < size && j < numElement; j++, i++ )
+	{
+	  dest[i] = src[i] | operand[j];
+	}
+      }
+    }
+    else
+    {
+      for( uint i = size; i > 0; )
+      {
+	for( uint j = numElement; i > 0 && j > 0; j--, i-- )
+	{
+	  dest[i-1] = src[i-1] | operand[j-1];
+	}
+      }
+    }
+  }
+  else if( operation == OperandXorData )
+  {
+    if( numElement == 0 ) { return( Err_IllegalArgument ); }
+    if( forward == true )
+    {
+      for( uint i = 0; i < size; )
+      {
+	for( uint j = 0; i < size && j < numElement; j++, i++ )
+	{
+	  dest[i] = src[i] ^ operand[j];
+	}
+      }
+    }
+    else
+    {
+      for( uint i = size; i > 0; )
+      {
+	for( uint j = numElement; i > 0 && j > 0; j--, i-- )
+	{
+	  dest[i-1] = src[i-1] ^ operand[j-1];
+	}
+      }
+    }
+  }
+  else if( operation == InvertData )
+  {
+    for( uint i = 0; i < size; i++ )
+    {
+      dest[i] = ~src[i];
+    }
+  }
+  else if( operation == ReverseData )
+  {
+    for( uint i = 0; i < size; i++ )
+    {
+      uchar flag = src[i];
+      uchar rev  = 0;
+      for( uint j = 0; j < 8; j++ )
+      {
+	rev |= (((flag & 0x80) >> (7-j)));
+	flag <<= 1;
+      }
+      dest[i] = rev;
+    }
+  }
+  else if( operation == RotateData || operation == ShiftData )
+  {
+    //
+    // Only forward here
+    //
+    bool up   = rotate[1] > 0 ? true : false;
+    int range = rotate[0];
+    int shift = abs(rotate[1]);
+    if( range == 0 || shift == 0 ) { return( Err_IllegalArgument ); }
+    shift = shift % (range*8);
+
+    int b = shift / 8;
+    int s = shift - b * 8;
+
+    for( uint i = 0; i < size; )
+    {
+      if( up == true )
+      {
+	int j;
+	if( operation == RotateData )
+	{
+	  for( j=0; j < b && i+range < size ; i++, j++ )
+	  {
+	    dest[i] = src[i+range-b];
+	  }
+	}
+	else
+	{
+	  for( j=0; j < b && i < size ; dest[i] = 0, i++, j++ );
+	}
+	for( ; j < range && i < size ; i++, j++ )
+	{
+	  dest[i] = src[i-b];
+	}
+
+	uchar last = dest[i-1];
+	for( int k=1; k <= j; k++ )
+	{
+	  dest[i-k] >>= s;
+	  if( k < j )
+	  {
+	    dest[i-k] |= dest[i-k-1]<<(8-s);
+	  }
+	  else if( j == range && operation == RotateData )
+	  {
+	    dest[i-k] |= last<<(8-s);
+	  }
+	}
+      }
+      else
+      {
+	int j;
+	for( j=0; j+b < range && i+b < size ; i++, j++ )
+	{
+	  dest[i] = src[i+b];
+	}
+	for( ; j < range && i < size ; i++, j++ )
+	{
+	  dest[i] = operation == RotateData ? src[i+b-range] : 0;
+	}
+	
+	uchar first = dest[i-j];
+	for( int k=j; k>0; k-- )
+	{
+	  dest[i-k] <<= s;
+	  if( k>1 )
+	  {
+	    dest[i-k] |= dest[i-k+1]>>(8-s);
+	  }
+	  else if( j == range && operation == RotateData )
+	  {
+	    dest[i-k] |= first>>(8-s);
+	  }
+	}
+      }
+    }
+  }
+  else if( operation == SwapBits )
+  {
+    //
+    // Swap bits. Based on Leon Lessing's work.
+    //
+
+    //
+    // Make non swapped version first.
+    //
+    for( uint i = 0; i < size; i++ )
+    {
+      dest[i] = src[i];
+    }
+
+    //
+    // Swap the pairs the have been defined
+    // Format of operand (example):
+    // 7 2 5 0 0 0 0 0
+    // Swap bit 7 with bit 2 and swap bit 5 with bit 0
+    //
+    for( uint j=0; j<4; j++ )
+    {
+      uchar b1 = 1 << (uchar)operand[j*2];
+      uchar b2 = 1 << (uchar)operand[j*2+1];
+      if( b1 == b2 ) { continue; } // Equal, no need to swap.
+
+      for( uint i = 0; i < size; i++ )
+      {
+	uchar b = 0;
+	if( dest[i] & b1 ) { b |= b2; }
+	if( dest[i] & b2 ) { b |= b1; }
+
+	//
+	// A short description so that I will understand what the
+	// h... is going on five minutes from now.
+	//
+	// Destination byte is masked (AND'ed) with the inverse bitmap
+	// (the noninversed bitmap contains position of the
+	// two swap bits, eg 7-2 gives 10000100). Then the destination
+	// is OR'ed with the swapped bitmap.
+	//
+	dest[i] = (dest[i] & ~(b1 | b2)) | b;
+      }
+    }
+  }
+  else
+  {
+    return( Err_IllegalArgument );
+  }
+
+  return( Err_Success );
+}
+
+
+const char *SExportCArray::printFormatted( const char *b, uint maxSize ) const
+{
+  static char buf[12];
+  if( elementType == Char )
+  {
+    char e = 0;
+    memcpy( &e, b, QMIN(sizeof(e),maxSize) );
+    sprintf( buf, "%d", e );
+    return( buf );
+  }
+  else if( elementType == Uchar )
+  {
+    unsigned char e = 0;
+    memcpy( &e, b, QMIN(sizeof(e),maxSize) );
+    if( unsignedAsHexadecimal == true )
+    {
+      sprintf( buf, "0x%02x", e );
+    }
+    else
+    {
+      sprintf( buf, "%u", e );
+    }
+    return( buf );
+  }
+  else if( elementType == Short )
+  {
+    short e = 0;
+    memcpy( &e, b, QMIN(sizeof(e),maxSize) );
+    sprintf( buf, "%d", e );
+    return( buf );
+
+  }
+  else if( elementType == Ushort )
+  {
+    unsigned short e = 0;
+    memcpy( &e, b, QMIN(sizeof(e),maxSize) );
+    if( unsignedAsHexadecimal == true )
+    {
+      sprintf( buf, "0x%04x", e );
+    }
+    else
+    {
+      sprintf( buf, "%u", e );
+    }
+    return( buf );
+  }
+  else if( elementType == Int )
+  {
+    int e = 0;
+    memcpy( &e, b, QMIN(sizeof(e),maxSize) );
+    sprintf( buf, "%u", e );
+    return( buf );
+  }
+  else if( elementType == Uint )
+  {
+    unsigned int e = 0;
+    memcpy( &e, b, QMIN(sizeof(e),maxSize) );
+    if( unsignedAsHexadecimal == true )
+    {
+      sprintf( buf, "0x%08x", e );
+    }
+    else
+    {
+      sprintf( buf, "%u", e );
+    }
+    return( buf );
+  }
+  else if( elementType == Float )
+  {
+    float e = 0;
+    memcpy( &e, b, QMIN(sizeof(e),maxSize) );
+    sprintf( buf, "%f", e );
+    return( buf );
+  }
+  else if( elementType == Double )
+  {
+    double e = 0;
+    memcpy( &e, b, QMIN(sizeof(e),maxSize) );
+    sprintf( buf, "%f", e );
+    return( buf );
+  }
+
+  else
+  {
+    return("");
+  }
+}
+
+
+QString SExportCArray::variableName( uint range ) const
+{
+  const char *typeString[] =
+  {
+    "char",
+    "unsigned char",
+    "short",
+    "unsigned short",
+    "int",
+    "unsigned int",
+    "float",
+    "double"
+  };
+
+  uint es = elementSize();
+  uint numElement = range / es + ((range % es) ? 1 : 0);
+
+  return( QString("%1 %2[%2]").arg(typeString[elementType]).
+	  arg(arrayName).arg(numElement) );
+}
+
+
+
+int SExportCArray::elementSize( void ) const
+{
+  if( elementType == Char || elementType == Uchar )
+  {
+    return( sizeof(char) );
+  }
+  else if( elementType == Short || elementType == Ushort )
+  {
+    return( sizeof(short) );
+  }
+  else if( elementType == Int || elementType == Uint )
+  {
+    return( sizeof(int) );
+  }
+  else if( elementType == Float )
+  {
+    return( sizeof(float) );
+  }
+  else if( elementType == Double )
+  {
+    return( sizeof(double) );
+  }
+  else
+  {
+    return(1);
+  }
+}
+
+
+char CHexBuffer::mHexBigBuffer[16]=
+{
+  '0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'
+};
+
+char CHexBuffer::mHexSmallBuffer[16]=
+{
+  '0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'
+};
+
+char CHexBuffer::mDecBuffer[10]=
+{
+  '0','1','2','3','4','5','6','7','8','9'
+};
+
+char CHexBuffer::mOctBuffer[8]=
+{
+  '0','1','2','3','4','5','6','7'
+};
+
+
+SCursorState CHexBuffer::mCursorState;
+SFileState CHexBuffer::mFileState;
+
+
+
+
+CHexBuffer::CHexBuffer( void )
+  :QByteArray()
+{
+  mColorIndex   = 0;
+  mPrintBuf     = 0;
+  mLoadingData  = false;
+  mEditMode     = EditReplace;
+  mActiveEditor = edit_primary;
+
+  mDocumentModified = false;
+
+  #ifdef DEBUG_FIXED_SIZE
+  setMaximumSize( DEBUG_FIXED_SIZE );
+  #else
+  setMaximumSize( ~0 );
+  #endif
+
+  setDocumentSize(0);
+
+  #ifdef PRINTER_TEST
+  puts("<CHexBuffer> Printer test is activated");
+  #endif
+
+
+  setInputMode( mInputMode );
+
+  int errCode = setLayout( mLayout );
+  if( errCode != 0 )
+  {
+    return;
+  }
+  setColor( mColor );
+  setFont( mFontInfo.init() );
+  setShowCursor( true );
+  setDisableCursor( false );
+  setEditMode( EditReplace, false, false );
+  setSoundState( false, false );
+
+  mUndoLimit = 10;
+  mUndoIndex = 0;
+  mUndoList.setAutoDelete( TRUE );
+  mBookmarkList.setAutoDelete( TRUE );
+}
+
+
+CHexBuffer::~CHexBuffer( void )
+{
+  //debug("CHexBuffer::~CHexBuffer");
+  delete [] mColorIndex;
+  delete [] mPrintBuf;
+}
+
+
+
+bool CHexBuffer::hasFileName( void )
+{
+  //
+  // FIXME: Files can be called "Untitled" so this must be corrected.
+  //
+  if( mUrl.isEmpty() || mUrl.contains( i18n( "Untitled" ), false ) )
+  {
+    return( false );
+  }
+  else
+  {
+    return( true );
+  }
+}
+
+
+
+int CHexBuffer::setLayout( SDisplayLayout &layout )
+{
+  mLayout = layout;
+  mLayout.verify();
+
+  if( mLayout.primaryMode == SDisplayLayout::textOnly )
+  {
+    mActiveEditor = edit_primary;
+    setEditMode( mEditMode );
+  }
+
+  mCursor.setLineSize( mLayout.lineSize );
+  mCursor.addOffset( 0 ); // This will only reset the cell position
+
+  computeLineWidth();
+  cursorCompute();
+
+  delete [] mColorIndex; mColorIndex = 0;
+  delete [] mPrintBuf; mPrintBuf = 0;
+
+  mColorIndex = new unsigned char[ mLayout.lineSize ];
+  if( mColorIndex == 0 )
+  {
+    return( Err_NoMemory );
+  }
+  setColor( mColor );
+
+  //
+  // The 'mPrintBuf' is used to store formatted text. It is used for all
+  // print operations and must have the size of the 'mDpyState.lineSize' which
+  // is the number of bytes in one single display line.
+  //
+  mPrintBuf = new char[ mLayout.lineSize < 12 ? 12 : mLayout.lineSize ];
+  if( mPrintBuf == 0 )
+  {
+    delete [] mColorIndex; mColorIndex = 0;
+    return( Err_NoMemory );
+  }
+
+  return( Err_Success );
+}
+
+
+void CHexBuffer::setColor( SDisplayColor &color )
+{
+  mColor = color;
+
+  //
+  // Test...
+  //
+  //mColor.secondTextBg = Qt::yellow;
+  //mColor.offsetBg = Qt::lightGray;
+  //mColor.gridFg = Qt::darkCyan;
+
+  /*
+  mColor.secondTextBg = mColor.textBg;
+  mColor.offsetBg = mColor.textBg;
+  mColor.gridFg = mColor.textBg;
+  */
+
+  if( mColorIndex != 0 )
+  {
+    uint columnSize = mLayout.columnSize == 0 ? 1 : mLayout.columnSize;
+    for( uint i = 0, entry = 0;  i < mLayout.lineSize; i++ )
+    {
+      if( i > 0 && i % columnSize == 0 ) { entry = entry == 0 ? 1 : 0; }
+      mColorIndex[i] = entry;
+    }
+  }
+}
+
+void CHexBuffer::setInputMode( SDisplayInputMode &mode )
+{
+  mInputMode = mode;
+  if( mInputMode.allowResize == false && mEditMode != EditReplace )
+  {
+    setEditMode( EditReplace );
+  }
+}
+
+
+bool CHexBuffer::toggleEditor( void )
+{
+  bool changed;
+  if( mLayout.secondaryMode == SDisplayLayout::hide )
+  {
+    changed = mActiveEditor == edit_secondary ? true : false;
+    mActiveEditor = edit_primary;
+  }
+  else
+  {
+    changed = true;
+    mActiveEditor = mActiveEditor == edit_primary ?
+      edit_secondary : edit_primary;
+  }
+
+  setEditMode( mEditMode ); // Sets the cursor shapes as well
+
+  if( changed == true )
+  {
+    mCursor.resetCell();
+    cursorCompute();
+  }
+
+  return( changed );
+}
+
+
+
+
+
+
+
+bool CHexBuffer::matchWidth( uint width )
+{
+  if( documentPresent() == false || (uint)mFixedWidth >= width )
+  {
+    return( false );
+  }
+
+  width -= mFixedWidth;
+
+  uint  g = mLayout.columnSpacing == 0 ? 1 : mLayout.columnSize;
+  uint  n = g * mNumCell;
+  uint  u = mUnitWidth;
+  uint  s = mLayout.secondaryMode == SDisplayLayout::hide ? 0 : g;
+  uint  o = mLayout.columnSpacing == 0 ? 0 : mSplitWidth;
+  float x = (float)(width+o)/(float)(u*(n+s)+o);
+
+  uint lineSize = (uint)x * g;
+
+  if( mLayout.lockColumn == false )
+  {
+    //
+    // Examine if we can add one or more entries from the next column. This
+    // will make the rightmost column smaller than the rest but we will
+    // utilize as much of the available space (ie., width) as possible.
+    // (Note that the entry itself (which represents one byte of filedata)
+    // can not be splitted, eg., in binary mode the entry is eight byte
+    // wide and will not be splitted).
+    //
+    int w = (int)((float)((int)x)* (float)(u*(n+s)+o) - (float)o);
+    if( w > 0 && (uint)w < width )
+    {
+      width -= w;
+      if( width > o )
+      {
+	x = (float)(width-o) / (float)(u*(mNumCell+1));
+	lineSize += (uint)x;
+      }
+    }
+  }
+
+  if( lineSize == 0 || lineSize == mLayout.lineSize )
+  {
+    //
+    // We have to redraw all text if a change occurs so we avoid it if
+    // possible.
+    //
+    return( false );
+  }
+
+  mLayout.lineSize  = lineSize;
+  setLayout( mLayout );
+  return( true );
+}
+
+
+void CHexBuffer::setNonPrintChar( QChar nonPrintChar )
+{
+  mFontInfo.nonPrintChar = nonPrintChar;
+}
+
+
+void CHexBuffer::setShowCursor( bool showCursor )
+{
+  mShowCursor = showCursor;
+}
+
+
+void CHexBuffer::setDisableCursor( bool disableCursor )
+{
+  mDisableCursor = disableCursor;
+}
+
+
+void CHexBuffer::setCursorShapeModifier( bool alwaysBlock, bool thickInsert )
+{
+  mCursor.setShapeModifier( alwaysBlock, thickInsert );
+  setEditMode( mEditMode );
+}
+
+void CHexBuffer::setEditMode( EEditMode editMode, bool alwaysBlock,
+			      bool thickInsert )
+{
+  mCursor.setShapeModifier( alwaysBlock, thickInsert );
+  setEditMode( editMode );
+}
+
+void CHexBuffer::setEditMode( EEditMode editMode )
+{
+  mEditMode = editMode;
+  if( mEditMode == EditInsert )
+  {
+    if( mActiveEditor == edit_primary )
+    {
+      mCursor.setShape( SCursorSpec::thin, SCursorSpec::frame, mUnitWidth,
+			mNumCell );
+    }
+    else
+    {
+      mCursor.setShape( SCursorSpec::frame, SCursorSpec::thin, mUnitWidth,
+			mNumCell );
+    }
+
+  }
+  else
+  {
+    if( mActiveEditor == edit_primary )
+    {
+      mCursor.setShape( SCursorSpec::solid, SCursorSpec::frame, mUnitWidth,
+			mNumCell );
+    }
+    else
+    {
+      mCursor.setShape( SCursorSpec::frame, SCursorSpec::solid, mUnitWidth,
+			mNumCell );
+    }
+  }
+}
+
+
+
+void CHexBuffer::setMaximumSize( uint maximumSize )
+{
+  if( maximumSize == 0 ) { maximumSize = ~0; }
+
+  mMaximumSize   = maximumSize;
+  mFixedSizeMode = maximumSize == (uint)~0 ? false : true;
+  mCursor.setFixedSizeMode( mFixedSizeMode );
+
+  if( mLayout.offsetVisible == false )
+  {
+    mOffsetSize  = 0;
+    mOffsetIndex = 0;
+    printOffset = &CHexBuffer::printDummyOffset;
+  }
+  else
+  {
+    if( mLayout.offsetMode ==  SDisplayLayout::decimal )
+    {
+      printOffset = &CHexBuffer::printDecimalOffset;
+      for( mOffsetSize=0; maximumSize > 0; mOffsetSize += 1 )
+      {
+	maximumSize = maximumSize / 10;
+      }
+      mOffsetIndex = 10 - mOffsetSize;
+    }
+    else if( mLayout.offsetMode == SDisplayLayout::hexadecimal )
+    {
+      if( mLayout.offsetUpperCase == true )
+      {
+	printOffset = &CHexBuffer::printHexadecimalBigOffset;
+      }
+      else
+      {
+	printOffset = &CHexBuffer::printHexadecimalSmallOffset;
+      }
+      for( mOffsetSize=0; maximumSize > 0; mOffsetSize += 1 )
+      {
+	maximumSize = maximumSize / 16;
+      }
+      if( mOffsetSize > 4 ) { mOffsetSize += 1; } // Space for the ':' sign
+      mOffsetIndex = 9 - mOffsetSize;
+    }
+    else
+    {
+      mLayout.offsetVisible = false;
+      mOffsetSize  = 0;
+      mOffsetIndex = 0;
+      printOffset = &CHexBuffer::printDummyOffset;
+    }
+  }
+}
+
+
+void CHexBuffer::setDocumentSize( uint size )
+{
+  if( size > mMaximumSize ) { size = mMaximumSize; }
+  mDocumentSize = size;
+  mCursor.setDocumentSize( size );
+  updateBookmarkMap(true);
+}
+
+
+void CHexBuffer::setUndoLevel( uint level )
+{
+  if( level < 10 ) { level = 10; }
+
+  if( level >= mUndoLimit )
+  {
+    mUndoLimit = level;
+    return;
+  }
+  else
+  {
+    //
+    // The maximum size decreases. If the list is larger than the the new
+    // limit, then reduce the list size starting with the oldest elements.
+    //
+    mUndoLimit = level;
+    while( mUndoList.count() >= mUndoLimit )
+    {
+      mUndoList.removeFirst();
+      mUndoIndex -= (mUndoIndex > 0 ? 1 : 0);
+    }
+  }
+}
+
+
+void CHexBuffer::setSoundState( bool inputSound, bool fatalSound )
+{
+  mInputErrorSound = inputSound;
+  mFatalErrorSound = fatalSound;
+}
+
+
+void CHexBuffer::setBookmarkVisibility( bool showInColumn, bool showInEditor )
+{
+  mShowBookmarkInOffsetColumn = showInColumn;
+  mShowBookmarkInEditor = showInEditor;
+}
+
+int CHexBuffer::writeFile( QFile &file, CProgress &p )
+{
+  uint offset = 0;
+  uint remaining = documentSize();
+
+  do
+  {
+    const uint blockSize = QMIN( 131072 /* == 1024 * 128 */  , remaining );
+    const int writeSize = file.writeBlock( data() + offset, blockSize );
+    if( writeSize == -1 )
+    {
+      p.finish();
+      return( Err_ReadFailed );
+    }
+    offset    += blockSize;
+    remaining -= blockSize;
+
+    if( p.expired() == true )
+    {
+      int errCode = p.step( (float)offset/(float)documentSize() );
+      if( errCode == Err_Stop && remaining > 0 )
+      {
+	p.finish();
+	return( Err_Success );
+      }
+    }
+  }
+  while( remaining > 0 );
+
+  p.finish();
+  mDocumentModified = false;
+  registerDiskModifyTime( file );
+
+  return( Err_Success );
+}
+
+
+int CHexBuffer::readFile( QFile &file, const QString &url, CProgress &p )
+{
+  if( resize( file.size() + 100 ) == false )
+  {
+    p.finish();
+    return( Err_NoMemory );
+  }
+
+  if( file.size() > 0 )
+  {
+    mLoadingData = true;
+    uint offset = 0;
+    uint remaining = file.size();
+    while( remaining > 0 )
+    {
+      const uint blockSize = QMIN( 131072 /* == 1024 * 128 */  , remaining );
+      const int readSize = file.readBlock( data() + offset, blockSize );
+      if( readSize == -1 )
+      {
+        p.finish();
+	mLoadingData = false;
+	return( Err_ReadFailed );
+      }
+      for( uint i=0; i<blockSize; i++)
+      {
+	data()[offset+i] = mEncode[ (unsigned char) data()[offset+i] ];
+      }
+
+      offset    += blockSize;
+      remaining -= blockSize;
+
+      if( p.expired() == true )
+      {
+	int errCode = p.step( (float)offset/(float)file.size() );
+	if( errCode == Err_Stop && remaining > 0 )
+	{
+	  p.finish();
+	  return( Err_OperationAborted );
+	}
+      }
+    }
+    mLoadingData = false;
+  }
+
+  p.finish();
+
+  mDocumentModified = false;
+  setDocumentSize( file.size() );
+  registerDiskModifyTime( file );
+  setUrl( url );
+  computeNumLines();
+  mSelect.reset();
+  mMark.reset();
+  mUndoList.clear();
+  mUndoIndex = 0;
+
+  return( Err_Success );
+}
+
+
+int CHexBuffer::insertFile( QFile &file, CProgress &p )
+{
+  if( file.size() == 0 )
+  {
+    p.finish();
+    return( Err_Success );
+  }
+
+  QByteArray array( file.size() );
+  if( array.isNull() == true )
+  {
+    p.finish();
+    return( Err_NoMemory );
+  }
+
+  uint offset = 0;
+  uint remaining = file.size();
+  while( remaining > 0 )
+  {
+    const uint blockSize = QMIN( 131072 /* == 1024 * 128 */  , remaining );
+    const int readSize = file.readBlock( array.data() + offset, blockSize );
+    if( readSize == -1 )
+    {
+      p.finish();
+      return( Err_ReadFailed );
+    }
+    for( uint i=0; i<blockSize; i++)
+    {
+      array[offset+i] = mEncode[ (unsigned char) array[offset+i] ];
+    }
+
+    offset    += blockSize;
+    remaining -= blockSize;
+
+    if( p.expired() == true )
+    {
+      int errCode = p.step( (float)offset/(float)file.size() );
+      if( errCode == Err_Stop && remaining > 0 )
+      {
+	p.finish();
+	return( Err_OperationAborted );
+      }
+    }
+  }
+
+  p.finish();
+
+  int errCode = inputAtCursor( array, 0 );
+  return( errCode );
+}
+
+
+int CHexBuffer::newFile( const QString &url )
+{
+  if( resize( 100 ) == 0 )
+  {
+    return( Err_NoMemory );
+  }
+
+  mDocumentModified = false;
+  setDocumentSize( 0 );
+  setUrl( url );
+  computeNumLines();
+  mSelect.reset();
+
+  return( Err_Success );
+}
+
+
+void CHexBuffer::closeFile( void )
+{
+  resize(0);
+  computeNumLines();
+
+  mUndoList.clear();
+  mUndoIndex = 0;
+
+  setDocumentSize(0);
+  mDocumentModified = false;
+
+  QString emptyUrl;
+  setUrl( emptyUrl );
+
+  mSelect.reset();
+  mMark.reset();
+
+  removeBookmark(-1); // Negative index - All bookmarks
+}
+
+
+void CHexBuffer::registerDiskModifyTime( const QFile &file )
+{
+  QFileInfo fileInfo( file );
+  mDiskModifyTime = fileInfo.lastModified();
+}
+
+
+
+void CHexBuffer::setFont( const SDisplayFontInfo &fontInfo )
+{
+  mFontInfo = fontInfo;
+  QFontMetrics fm( mFontInfo.font );
+  mFontHeight = fm.height();
+  mFontAscent = fm.ascent();
+  computeLineWidth();
+
+  for( int i=0; i < 256; i++ )
+  {
+    mCharValid[i] = QChar(i).isPrint();
+  }
+
+  /*
+  QFontInfo info( mFontInfo.font );
+  puts("CHexBuffer mCharValid broken");
+
+  KCharset charset( info.charSet() );
+  for( int i=0; i < 256; i++ )
+  {
+    mCharValid[i] = charset.printable(i);
+  }
+  */
+}
+
+
+int CHexBuffer::setEncoding( CConversion::EMode mode, CProgress &p )
+{
+  int errCode = mEncode.convert( *this, mode, p );
+  if( errCode == Err_Success )
+  {
+    //
+    // The cursor stores the byte it is "covering", so this information
+    // must be updated.
+    //
+    cursorCompute();
+  }
+
+  return( errCode );
+}
+
+
+
+
+void CHexBuffer::computeLineWidth( void )
+{
+  QFontMetrics fm( mFontInfo.font );
+  mUnitWidth  = fm.width( "M" );
+
+  if( mLayout.primaryMode == SDisplayLayout::textOnly )
+  {
+    mSplitWidth = 0;
+  }
+  else if( mLayout.columnCharSpace == true )
+  {
+    mSplitWidth = mUnitWidth;
+  }
+  else
+  {
+    mSplitWidth = mLayout.columnSpacing;
+  }
+
+  setMaximumSize( mMaximumSize );
+
+  if( mLayout.primaryMode == SDisplayLayout::hexadecimal )
+  {
+    mNumCell = 2;
+    mCursor.setCellWeight( 4 );
+    if( mLayout.primaryUpperCase == true )
+    {
+      printCell = &CHexBuffer::printHexadecimalBigCell;
+      inputCell = &CHexBuffer::inputHexadecimal;
+    }
+    else
+    {
+      printCell = &CHexBuffer::printHexadecimalSmallCell;
+      inputCell = &CHexBuffer::inputHexadecimal;
+    }
+  }
+  else if( mLayout.primaryMode == SDisplayLayout::decimal )
+  {
+    mNumCell  = 3;
+    printCell = &CHexBuffer::printDecimalCell;
+    inputCell = &CHexBuffer::inputDecimal;
+    mCursor.setCellWeight( 3 );
+  }
+  else if( mLayout.primaryMode == SDisplayLayout::octal )
+  {
+    mNumCell  = 3;
+    printCell = &CHexBuffer::printOctalCell;
+    inputCell = &CHexBuffer::inputOctal;
+    mCursor.setCellWeight( 3 );
+  }
+  else if( mLayout.primaryMode == SDisplayLayout::binary )
+  {
+    mNumCell  = 8;
+    printCell = &CHexBuffer::printBinaryCell;
+    inputCell = &CHexBuffer::inputBinary;
+    mCursor.setCellWeight( 1 );
+  }
+  else if( mLayout.primaryMode == SDisplayLayout::textOnly )
+  {
+    mNumCell  = 1;
+    printCell = &CHexBuffer::printAsciiCell;
+    inputCell = &CHexBuffer::inputAscii;
+    mCursor.setCellWeight( 8 );
+  }
+  else
+  {
+    mNumCell  = 2;
+    mLayout.primaryMode = SDisplayLayout::hexadecimal;
+    mLayout.primaryUpperCase = false;
+    printCell = &CHexBuffer::printHexadecimalSmallCell;
+    inputCell = &CHexBuffer::inputHexadecimal;
+    mCursor.setCellWeight( 4 );
+  }
+
+  //
+  // 'mPrimaryWidth' is the number of pixels that are needed to display a
+  // line in the primary field.
+  //
+  mPrimaryWidth = mLayout.lineSize * mNumCell * mUnitWidth;
+
+  if( mLayout.columnSpacing != 0 )
+  {
+    int numSplit = mLayout.lineSize / mLayout.columnSize;
+    numSplit -= mLayout.lineSize % mLayout.columnSize == 0 ? 1 : 0;
+    mPrimaryWidth += numSplit * mSplitWidth;
+  }
+
+  //
+  // 'mSecondaryWidth' is the number of pixels that are needed to display a
+  // line in the secondary field (there are no spaces).
+  //
+  if( mLayout.secondaryMode == SDisplayLayout::hide )
+  {
+    mSecondaryWidth = 0;
+  }
+  else
+  {
+    mSecondaryWidth = mLayout.lineSize * mUnitWidth;
+  }
+
+  //
+  // 'mLineWidth' is the total number of pixels required to display
+  // offset data, separators, primary and secondary data on a line.
+  //
+  mLineWidth = mPrimaryWidth + mSecondaryWidth + mOffsetSize * mUnitWidth;
+
+  //
+  // The 'mFixedWidth' is the number of pixels of the width that stays the
+  // same regardless of how many characters that are displayed.
+  // This entity consists of the edge margins, the inner margins and the
+  // separators.
+  //
+  mFixedWidth = mOffsetSize * mUnitWidth;
+
+  //
+  // The edge margin is always present in both ends.
+  //
+  mLineWidth  += mLayout.edgeMarginWidth * 2;
+  mFixedWidth += mLayout.edgeMarginWidth * 2;
+
+  //
+  // 'mTextStart1' is the number of pixels from the left edge where the
+  // primary field starts.
+  //
+  mTextStart1 = mLayout.edgeMarginWidth;
+  if( mLayout.offsetVisible == true )
+  {
+    int width;
+    if( mLayout.leftSeparatorWidth > 0 )
+    {
+      width = mLayout.separatorMarginWidth * 2 + mLayout.leftSeparatorWidth;
+    }
+    else
+    {
+      width = (mLayout.separatorMarginWidth * 3) / 2;
+    }
+
+    mLineWidth  += width;
+    mFixedWidth += width;
+    mTextStart1 += width + mOffsetSize * mUnitWidth;
+  }
+
+  //
+  // 'mTextStart2' is the number of pixels from the left edge where the
+  // secondary fields start.
+  //
+  mTextStart2 = mTextStart1;
+  if( mLayout.secondaryMode != SDisplayLayout::hide )
+  {
+    int width;
+    if( mLayout.rightSeparatorWidth > 0 )
+    {
+      width = mLayout.separatorMarginWidth * 2 + mLayout.rightSeparatorWidth;
+    }
+    else
+    {
+      width = (mLayout.separatorMarginWidth * 3) / 2;
+    }
+
+    mLineWidth  += width;
+    mFixedWidth += width;
+    mTextStart2 += width + mPrimaryWidth;
+  }
+
+  setEditMode( mEditMode );
+  computeNumLines();
+}
+
+
+void CHexBuffer::computeNumLines( void )
+{
+  if( mLayout.lineSize == 0 )
+  {
+    mNumLines = 1;
+  }
+  else
+  {
+    uint s = mFixedSizeMode == true ? mMaximumSize : documentSize() + 1;
+    mNumLines = s / mLayout.lineSize + (s % mLayout.lineSize ? 1 : 0);
+  }
+}
+
+
+
+void CHexBuffer::drawSelection( QPainter &paint, QColor &color, uint start,
+				uint stop, int sx )
+{
+  if( start >= stop ) { return; }
+  uint width = stop - start;
+
+  uint addStart, addWidth;
+  addStart = (start / mLayout.columnSize) * mSplitWidth;
+  if( width == 0 )
+  {
+    addWidth = 0;
+  }
+  else
+  {
+    uint g = mLayout.columnSize;
+    addWidth = (((start % g) + width - 1) / g) * mSplitWidth;
+  }
+
+  int offset = mTextStart1 - sx;
+  paint.fillRect( offset + start * mNumCell * mUnitWidth + addStart,
+		  0, width * mNumCell * mUnitWidth + addWidth,
+		  mFontHeight, color );
+
+  if( mLayout.secondaryMode != SDisplayLayout::hide )
+  {
+    offset = mTextStart2 - sx;
+    paint.fillRect( offset + start * mUnitWidth,
+		    0, width * mUnitWidth,
+		    mFontHeight, color );
+  }
+}
+
+
+
+
+
+void CHexBuffer::drawText( QPainter &paint, uint line, int sx, int x1, int x2 )
+{
+  uint fileOffset = line * mLayout.lineSize;
+  if( documentPresent() == false || mLoadingData == true )
+  {
+    paint.fillRect( x1, 0, x2-x1, lineHeight(), mColor.inactiveBg );
+    return;
+  }
+
+  bool outsideText;
+  if( size() == 0 || fileOffset > documentSize() || fileOffset >= mMaximumSize)
+  {
+    outsideText = true;
+  }
+  else
+  {
+    outsideText = false;
+  }
+
+  if( (line+1) % 2 || outsideText == true )
+  {
+    paint.fillRect( x1, 0, x2-x1, lineHeight(), mColor.textBg );
+  }
+  else
+  {
+    paint.fillRect( x1, 0, x2-x1, lineHeight(), mColor.secondTextBg );
+  }
+  if( mLayout.horzGridWidth > 0 && outsideText == false )
+  {
+    paint.setPen( mColor.gridFg );
+    paint.drawLine( x1, mFontHeight, x2, mFontHeight );
+  }
+
+  if( mSelect.inside( fileOffset, mLayout.lineSize ) == true )
+  {
+    uint start = mSelect.start( fileOffset );
+    uint stop  = mSelect.stop( fileOffset, mLayout.lineSize );
+    drawSelection( paint, mColor.selectBg, start, stop, sx );
+  }
+
+  //
+  // A marked area will be displayed "above" a selcted area (given
+  // the mark background color is different)
+  //
+  if( mMark.inside( fileOffset, mLayout.lineSize ) == true )
+  {
+    uint start = mMark.start( fileOffset );
+    uint stop  = mMark.stop( fileOffset, mLayout.lineSize );
+    drawSelection( paint, mColor.markBg, start, stop, sx );
+  }
+
+  uint dataSize;
+  unsigned char *fileData;
+  if( outsideText == true )
+  {
+    if( size() == 0 )
+    {
+      return;
+    }
+    dataSize = 0;
+    fileData = 0;
+  }
+  else
+  {
+    dataSize = documentSize() - fileOffset;
+    if( dataSize > mLayout.lineSize ) { dataSize = mLayout.lineSize; }
+    fileData = (unsigned char*)&(data()[ fileOffset ]);
+  }
+
+  //
+  // Compute the offset area size. We postpose the actual drawing
+  // until we have drawn any bookmark indicators in the editor areas.
+  // because we may want to draw an indicator in the offset area as well.
+  //
+  int offset = mLayout.edgeMarginWidth - sx;
+  if( mLayout.offsetVisible == true )
+  {
+    offset += mOffsetSize * mUnitWidth;
+    if( mLayout.leftSeparatorWidth > 0 )
+    {
+      offset += mLayout.leftSeparatorWidth + mLayout.separatorMarginWidth*2;
+    }
+    else
+    {
+      offset += (mLayout.separatorMarginWidth * 3) / 2;
+    }
+  }
+
+
+  #if 0
+  int offset = mLayout.edgeMarginWidth - sx;
+  if( mLayout.offsetVisible == true )
+  {
+    int s0 = mOffsetSize * mUnitWidth;
+    int s1 = s0 + mLayout.separatorMarginWidth + mLayout.edgeMarginWidth - sx;
+    if( x1 < s1 && x2 > 0 )
+    {
+      if( outsideText == true )
+      {
+	paint.fillRect( 0, 0, s1, lineHeight(), mColor.offsetBg );
+      }
+      else
+      {
+	//
+	// I want to display the grid here so I cant use lineHeight()
+	//
+	paint.fillRect( 0, 0, s1, mFontHeight, mColor.offsetBg );
+      }
+    }
+
+    if( x1 < offset + s0 && x2 >= offset && fileData != 0 )
+    {
+      paint.setPen( mColor.offsetFg );
+      THIS_FPTR(printOffset)( mPrintBuf, fileOffset );
+      // ## paint.drawText(offset,mFontAscent,&mPrintBuf[mOffsetIndex],
+      // mOffsetSize);
+      paint.drawText( offset, mFontAscent, 
+		      QString::fromLocal8Bit(&mPrintBuf[mOffsetIndex]),
+		      mOffsetSize );
+    }
+    offset += s0;
+
+    if( mLayout.leftSeparatorWidth > 0 )
+    {
+      offset += mLayout.separatorMarginWidth;
+
+      int s2 = mLayout.leftSeparatorWidth + mLayout.separatorMarginWidth;
+      if( x1 < offset + s2 && x2 >= offset )
+      {
+	QPen pen( mColor.leftSeparatorFg, mLayout.leftSeparatorWidth );
+	paint.setPen( pen );
+	int center = offset + mLayout.leftSeparatorWidth/2;
+	paint.drawLine( center, 0, center, lineHeight() );
+      }
+      offset += s2;
+    }
+    else
+    {
+      offset += (mLayout.separatorMarginWidth * 3) / 2;
+    }
+  }
+  #endif
+
+
+  //
+  // Draw the primary area
+  //
+  int localOffset = offset;
+  for( uint i = 0; i < dataSize; i++ )
+  {
+    int s = mNumCell * mUnitWidth +
+      ((i+1) % mLayout.columnSize == 0) * mSplitWidth;
+    if( x1 < localOffset + s && x2 >= localOffset )
+    {
+      int flag = THIS_FPTR(printCell)( mPrintBuf, fileData[i] );
+      if( mSelect.inside( fileOffset+i ) )
+      {
+	paint.setPen( mColor.selectFg );
+      }
+      else if( mMark.inside( fileOffset+i ) )
+      {
+	paint.setPen( mColor.markFg );
+      }
+      else
+      {
+	paint.setPen( flag == 0 ? foregroundColor( i ) : mColor.nonPrintFg );
+      }
+
+      // ## paint.drawText( localOffset, mFontAscent, mPrintBuf, mNumCell );
+      paint.drawText( localOffset, mFontAscent, 
+		      QString::fromLocal8Bit(mPrintBuf), mNumCell );
+    }
+    localOffset += s;
+
+    if( mLayout.vertGridWidth > 0 && i+1 < dataSize )
+    {
+      if( (i+1) % mLayout.columnSize == 0 )
+      {
+	paint.setPen( mColor.gridFg );
+	int x = localOffset - (mSplitWidth+1) / 2;
+	paint.drawLine( x, 0, x, mFontHeight );
+      }
+    }
+  }
+
+  //
+  // Draw the secondary area
+  //
+  offset += mPrimaryWidth;
+  if( mLayout.secondaryMode != SDisplayLayout::hide )
+  {
+    if( mLayout.rightSeparatorWidth > 0 )
+    {
+      offset += mLayout.separatorMarginWidth;
+      int s = mLayout.separatorMarginWidth + mLayout.rightSeparatorWidth;
+      if( x1 < offset + s && x2 >= offset )
+      {
+	QPen pen( mColor.rightSeparatorFg, mLayout.rightSeparatorWidth );
+	paint.setPen( pen );
+	int center = offset + mLayout.rightSeparatorWidth/2;
+	paint.drawLine( center, 0, center, lineHeight() );
+      }
+      offset += s;
+    }
+    else
+    {
+      offset += (mLayout.separatorMarginWidth * 3) / 2;
+    }
+
+    int s = mUnitWidth;
+    for( uint i = 0; i < dataSize; i++ )
+    {
+      if( x1 < offset + s && x2 >= offset )
+      {
+	int flag = printAsciiCell( mPrintBuf, fileData[i] );
+	if( mSelect.inside( fileOffset+i ) )
+	{
+	  paint.setPen( mColor.selectFg );
+	}
+	else if( mMark.inside( fileOffset+i ) )
+	{
+	  paint.setPen( mColor.markFg );
+	}
+	else
+	{
+	  paint.setPen( flag == 0 ? mColor.secondaryFg : mColor.nonPrintFg );
+	}
+
+	// ## paint.drawText( offset, mFontAscent, mPrintBuf, 1 );
+	paint.drawText( offset, mFontAscent, 
+			QString::fromLocal8Bit(mPrintBuf), 1 );
+      }
+      offset += s;
+    }
+  }
+
+  //
+  // Draw the bookmark identifiers on this line (if any).  We use the
+  // bitmask to minimize the number of times we try to draw the bookmarks.
+  //
+  int bookmarkPosition = 0;
+  if( mBookmarkMap.testBit(fileOffset/200) ||
+      mBookmarkMap.testBit((fileOffset+mLayout.lineSize-1)/200 ) )
+  {
+    // Returns a bookmark postion state
+    bookmarkPosition = drawBookmarks( paint, line, sx );
+  }
+
+  //
+  // Draw the offset area. We have delayed the drawing until now because
+  // it is possible to draw a bookmark indicator in this area.
+  //
+  offset = mLayout.edgeMarginWidth - sx;
+  if( mLayout.offsetVisible == true )
+  {
+    int s0 = mOffsetSize * mUnitWidth;
+    int s1 = s0 + mLayout.separatorMarginWidth + mLayout.edgeMarginWidth - sx;
+    if( x1 < s1 && x2 > 0 )
+    {
+      QColor bg = mShowBookmarkInOffsetColumn &&
+	(bookmarkPosition & BookmarkOnLine) ?
+	mColor.bookmarkBg : mColor.offsetBg;
+      if( outsideText == true )
+      {
+	paint.fillRect( 0, 0, s1, lineHeight(), bg );
+      }
+      else
+      {
+	//
+	// I want to display the grid here so I cant use lineHeight()
+	//
+	paint.fillRect( 0, 0, s1, mFontHeight, bg );
+      }
+    }
+
+    if( x1 < offset + s0 && x2 >= offset && fileData != 0 )
+    {
+      paint.setPen( mShowBookmarkInOffsetColumn &&
+		    bookmarkPosition & BookmarkOnLine ?
+		    mColor.bookmarkFg : mColor.offsetFg );
+      THIS_FPTR(printOffset)( mPrintBuf, fileOffset );
+      // ## paint.drawText(offset,mFontAscent,&mPrintBuf[mOffsetIndex],
+      // mOffsetSize);
+      paint.drawText( offset, mFontAscent, 
+		      QString::fromLocal8Bit(&mPrintBuf[mOffsetIndex]),
+		      mOffsetSize );
+    }
+
+    offset += s0;
+
+    if( mLayout.leftSeparatorWidth > 0 )
+    {
+      offset += mLayout.separatorMarginWidth;
+
+      int s2 = mLayout.leftSeparatorWidth + mLayout.separatorMarginWidth;
+      if( x1 < offset + s2 && x2 >= offset )
+      {
+	QPen pen( mColor.leftSeparatorFg, mLayout.leftSeparatorWidth );
+	paint.setPen( pen );
+	int center = offset + mLayout.leftSeparatorWidth/2;
+	paint.drawLine( center, 0, center, lineHeight() );
+      }
+    }
+  }
+
+
+  //
+  // If the cursors are located on the line we have drawn we redraw
+  // them unless they have been disabled.
+  //
+  if( mDisableCursor == false )
+  {
+    if( mCursor.curr.inside( fileOffset, fileOffset + mLayout.lineSize ) )
+    {
+      drawCursor( paint, line, sx, bookmarkPosition & BookmarkOnCursor );
+    }
+  }
+
+}
+
+
+
+
+void CHexBuffer::drawText( QPainter &paint, uint line, int x1, int x2, int y,
+			   bool useBlackWhite )
+{
+  uint fileOffset = line * mLayout.lineSize;
+
+  bool outsideText;
+  if( size() == 0 || fileOffset > documentSize() || fileOffset >= mMaximumSize)
+  {
+    outsideText = true;
+  }
+  else
+  {
+    outsideText = false;
+  }
+
+  if( (line+1) % 2 || outsideText == true )
+  {
+    paint.fillRect( x1, y, x2, lineHeight(),
+		    useBlackWhite == true ? Qt::white : mColor.textBg );
+  }
+  else
+  {
+    paint.fillRect( x1, y, x2, lineHeight(),
+		    useBlackWhite == true ? Qt::white : mColor.secondTextBg );
+  }
+
+  if( mLayout.horzGridWidth > 0 && outsideText == false )
+  {
+    QPen pen( useBlackWhite == true ? Qt::black : mColor.gridFg,
+	      mLayout.horzGridWidth );
+    paint.setPen( pen );
+    paint.drawLine( x1, y+mFontHeight, x2+x1, y+mFontHeight );
+  }
+
+  uint dataSize;
+  unsigned char *fileData;
+  if( outsideText == true )
+  {
+    if( size() == 0 )
+    {
+      return;
+    }
+    dataSize = 0;
+    fileData = 0;
+  }
+  else
+  {
+    dataSize = documentSize() - fileOffset;
+    if( dataSize > mLayout.lineSize ) { dataSize = mLayout.lineSize; }
+    fileData = (unsigned char*)&(data()[ fileOffset ]);
+  }
+
+  int offset = mLayout.edgeMarginWidth + x1;
+
+  if( mLayout.offsetVisible == true )
+  {
+    int s1 = mOffsetSize * mUnitWidth;
+    if( fileData != 0 )
+    {
+      paint.setPen( useBlackWhite == true ? Qt::black : mColor.offsetFg );
+      THIS_FPTR(printOffset)( mPrintBuf, fileOffset );
+      // ## paint.drawText( offset, mFontAscent+y, &mPrintBuf[mOffsetIndex],
+      // mOffsetSize );
+      paint.drawText( offset, mFontAscent+y, 
+		      QString::fromLocal8Bit(&mPrintBuf[mOffsetIndex]), 
+ 		      mOffsetSize );
+    }
+    offset += s1;
+
+    if( mLayout.leftSeparatorWidth > 0 )
+    {
+      offset += mLayout.separatorMarginWidth;
+
+      int s2 = mLayout.leftSeparatorWidth + mLayout.separatorMarginWidth;
+      QPen pen( useBlackWhite == true ? Qt::black : mColor.leftSeparatorFg,
+		mLayout.leftSeparatorWidth );
+      paint.setPen( pen );
+      int center = offset + mLayout.leftSeparatorWidth/2;
+      paint.drawLine( center, y, center, mFontHeight+y );
+      offset += s2;
+    }
+    else
+    {
+      offset += (mLayout.separatorMarginWidth * 3) / 2;
+    }
+  }
+
+  int localOffset = offset;
+  for( uint i = 0; i < dataSize; i++ )
+  {
+    int s = mNumCell * mUnitWidth +
+      ((i+1) % mLayout.columnSize == 0) * mSplitWidth;
+    int flag = THIS_FPTR(printCell)( mPrintBuf, fileData[i] );
+    if( useBlackWhite == true )
+    {
+      paint.setPen( Qt::black );
+    }
+    else
+    {
+      paint.setPen( flag == 0 ? foregroundColor( i ) : mColor.nonPrintFg );
+    }
+    // ## paint.drawText( localOffset, mFontAscent+y, mPrintBuf, mNumCell );
+    paint.drawText( localOffset, mFontAscent+y, 
+		    QString::fromLocal8Bit(mPrintBuf), mNumCell );
+    localOffset += s;
+
+    if( mLayout.vertGridWidth > 0 && i+1 < dataSize )
+    {
+      if( (i+1) % mLayout.columnSize == 0 )
+      {
+	QPen pen( useBlackWhite == true ? Qt::black : mColor.gridFg,
+		  mLayout.vertGridWidth );
+	paint.setPen( pen );
+	int x = localOffset - (mSplitWidth+1) / 2;
+	paint.drawLine( x, y, x, y+mFontHeight );
+      }
+    }
+
+  }
+
+  offset += mPrimaryWidth;
+
+  if( mLayout.secondaryMode != SDisplayLayout::hide )
+  {
+    if( mLayout.rightSeparatorWidth > 0 )
+    {
+      offset += mLayout.separatorMarginWidth;
+      int s = mLayout.separatorMarginWidth + mLayout.rightSeparatorWidth;
+      QPen pen( useBlackWhite == true ? Qt::black : mColor.rightSeparatorFg,
+		mLayout.rightSeparatorWidth );
+      paint.setPen( pen );
+      int center = offset + mLayout.rightSeparatorWidth/2;
+      paint.drawLine( center, y, center, mFontHeight+y );
+      offset += s;
+    }
+    else
+    {
+      offset += (mLayout.separatorMarginWidth * 3) / 2;
+    }
+
+
+    int s = mUnitWidth;
+    for( uint i = 0; i < dataSize; i++ )
+    {
+      int flag = printAsciiCell( mPrintBuf, fileData[i] );
+      if( useBlackWhite == true )
+      {
+	paint.setPen( Qt::black );
+      }
+      else
+      {
+	paint.setPen( flag == 0 ? mColor.secondaryFg : mColor.nonPrintFg );
+      }
+      // ## paint.drawText( offset, mFontAscent+y, mPrintBuf, 1 );
+      paint.drawText( offset, mFontAscent+y, 
+		      QString::fromLocal8Bit(mPrintBuf), 1 );
+      offset += s;
+    }
+  }
+
+}
+
+
+int CHexBuffer::headerHeight( QPainter &paint )
+{
+  QFont font( paint.font() );
+  paint.setFont( KGlobalSettings::generalFont() );
+  const QFontMetrics &fm = paint.fontMetrics();
+
+  int height = fm.height();
+  paint.setFont( font );
+  return( height );
+}
+
+int CHexBuffer::headerMargin( QPainter &paint )
+{
+  QFont font( paint.font() );
+  paint.setFont( KGlobalSettings::generalFont() );
+  const QFontMetrics &fm = paint.fontMetrics();
+
+  int margin = fm.height() / 2;
+  paint.setFont( font );
+  return( margin );
+}
+
+
+void CHexBuffer::drawHeader( QPainter &paint, int sx, int width, int y,
+			     bool isFooter, const SPageHeader &header,
+			     const SPagePosition &position )
+{
+  QFont font( paint.font() );
+  paint.setFont( KGlobalSettings::generalFont() );
+  const QFontMetrics &fm = paint.fontMetrics();
+
+  paint.fillRect( sx, y, width, fm.height(), Qt::white );
+  paint.setPen( Qt::black );
+  if( header.line == SPageHeader::SingleLine )
+  {
+    if( isFooter == false )
+    {
+      paint.drawLine( sx, y+fm.height(), sx+width, y+fm.height() );
+    }
+    else
+    {
+      paint.drawLine( sx, y, sx+width, y );
+    }
+  }
+  else if( header.line == SPageHeader::Rectangle )
+  {
+    paint.drawRect( sx, y, width, fm.height() );
+  }
+
+  int pos[3] =
+  {
+    QPainter::AlignLeft, QPainter::AlignHCenter, QPainter::AlignRight
+  };
+
+  QString msg;
+  for( int i=0; i<3; i++ )
+  {
+    if( header.pos[i] == SPageHeader::DateTime )
+    {
+      QDateTime datetime;
+      datetime.setTime_t( position.now );
+      msg = KGlobal::locale()->formatDateTime(datetime);
+    }
+    else if( header.pos[i] == SPageHeader::PageNumber )
+    {
+      msg = i18n("Page %1 of %2")
+        .arg(KGlobal::locale()->formatNumber(position.curPage, 0))
+        .arg(KGlobal::locale()->formatNumber(position.maxPage, 0));
+    }
+    else if( header.pos[i] == SPageHeader::FileName )
+    {
+      msg = mUrl;
+    }
+    else
+    {
+      continue;
+    }
+
+    if( 0 && pos[i] == QPainter::AlignRight )
+    {
+      //const QFontMetrics &f = QFontMetrics( KGlobalSettings::generalFont() );
+      //QRect r = paint.boundingRect(sx, y, width, fm.height(), pos[i], msg );
+      //printf("R: %d, %d, %d, %d\n", r.x(), r.y(), r.width(), r.height() );
+
+      int x = sx + width - /*r.width();*/ fm.width(msg);
+      paint.drawText( x, y+fm.height(), msg );
+      //printf("paint at %d\n", x );
+    }
+    else
+    {
+      paint.drawText( sx, y, width, fm.height(), pos[i], msg );
+    }
+  }
+
+  //
+  // restore original font.
+  //
+  paint.setFont( font );
+}
+
+
+
+
+int CHexBuffer::drawBookmarks( QPainter &paint, uint line, int startx )
+{
+  if( documentPresent() == false || mLoadingData == true )
+  {
+    return( 0 );
+  }
+
+  uint start = line*mLayout.lineSize;
+  uint stop  = start+mLayout.lineSize;
+  QColor bg  = mColor.bookmarkBg;
+  QColor fg  = mColor.bookmarkFg;
+
+  int bookmarkPosition = 0;
+
+  for( SCursorOffset *c=mBookmarkList.first(); c!=0; c=mBookmarkList.next() )
+  {
+    if( c->offset >= start && c->offset < stop )
+    {
+      int x = c->offset - start;
+      int x1 = mTextStart1 + x * mUnitWidth * mNumCell;
+      x1 += (x / mLayout.columnSize) * mSplitWidth;
+      int x2 = mTextStart2 + x * mUnitWidth;
+
+      bookmarkPosition |= BookmarkOnLine;
+
+      if( mShowBookmarkInEditor == false )
+      {
+	continue;
+      }
+
+      uint offset = line*mLayout.lineSize+x;
+      if( offset == mCursor.curr.offset )
+      {
+	bookmarkPosition |= BookmarkOnCursor;
+      }
+
+      if( mSelect.inside( offset ) || mMark.inside( offset ) )
+      {
+	paint.fillRect( x1-startx, 2, mUnitWidth*mNumCell, mFontHeight-4, bg );
+	if( mLayout.secondaryMode != SDisplayLayout::hide )
+	{
+	  paint.fillRect( x2-startx, 2, mUnitWidth, mFontHeight-4, bg );
+	}
+      }
+      else
+      {
+	paint.fillRect( x1-startx, 1, mUnitWidth*mNumCell, mFontHeight-2, bg );
+	if( mLayout.secondaryMode != SDisplayLayout::hide )
+	{
+	  paint.fillRect( x2-startx, 1, mUnitWidth, mFontHeight-2, bg );
+	}
+      }
+
+      unsigned char c = (data()[ line*mLayout.lineSize+x]);
+
+      int flag = THIS_FPTR(printCell)( mPrintBuf, c );
+      paint.setPen( flag == 0 ? fg : mColor.nonPrintFg );
+      // ## paint.drawText( x1-startx, mFontAscent, mPrintBuf, mNumCell );
+      paint.drawText( x1-startx, mFontAscent, 
+		      QString::fromLocal8Bit(mPrintBuf), mNumCell );
+      if( mLayout.secondaryMode != SDisplayLayout::hide )
+      {
+	flag = printAsciiCell( mPrintBuf, c );
+	paint.setPen( flag == 0 ? fg : mColor.nonPrintFg );
+	// ## paint.drawText( x2-startx, mFontAscent, mPrintBuf, 1 );	
+	paint.drawText( x2-startx, mFontAscent, 
+			QString::fromLocal8Bit(mPrintBuf), 1 );
+      }
+    }
+  }
+
+  return bookmarkPosition;
+}
+
+
+
+void CHexBuffer::drawCursor( QPainter &paint, uint line, int startx,
+			     bool onBookmark )
+{
+  if( documentPresent() == false || mLoadingData == true )
+  {
+    return;
+  }
+
+  SCursorSpec &c = mCursor.curr;
+
+  //
+  // Draw the cursor in primary edit area.
+  //
+  QColor bg, fg;
+  bool useFg;
+  if( mMark.inside( c.offset ) == true )
+  {
+    bg = mColor.markBg;
+    fg = mSelect.inside( c.offset ) ? mColor.selectFg : mColor.markFg;
+    useFg = true;
+  }
+  else if( mSelect.inside( c.offset ) == true )
+  {
+    bg = mColor.selectBg;
+    fg = mColor.selectFg;
+    useFg = true;
+  }
+  else
+  {
+    bg = (line+1) % 2 ? mColor.textBg : mColor.secondTextBg;
+    fg = foregroundColor( c.offset % mLayout.lineSize );
+    useFg = false; // Can be true later.
+  }
+
+  QColor cbg = mColor.cursorBg;
+  QColor cfg = mColor.cursorFg;
+
+  //
+  // Fill in the general backround color
+  //
+  paint.fillRect( c.x1 - startx, 0, mUnitWidth, mFontHeight, bg );
+  if( onBookmark == true )
+  {
+    int w = mUnitWidth * (mNumCell-c.cell); // Rest of cell
+    if( useFg == true )
+    {
+      paint.fillRect( c.x1-startx, 2, w, mFontHeight-4, mColor.bookmarkBg );
+    }
+    else
+    {
+      paint.fillRect( c.x1-startx, 1, w, mFontHeight-2, mColor.bookmarkBg );
+    }
+  }
+
+  //
+  // Draw the cursor shape
+  //
+  bool transparent = false;
+  if( mActiveEditor == edit_primary )
+  {
+    if( mShowCursor == true ) // Cursor blink on
+    {
+      if( c.mPrimaryShape == SCursorSpec::thin )
+      {
+	paint.setPen( cbg );
+	int center = c.x1 - startx - 1;
+	transparent = true;
+	
+	if( c.thickState == true )
+	{
+	  paint.drawLine( center, 0, center, mFontHeight - 1 );
+	  paint.drawLine( center+1, 0, center+1, mFontHeight - 1 );
+	}
+	else
+	{
+	  paint.drawLine( center, 0, center, mFontHeight - 1 );
+	  paint.drawLine( center-2, 0, center+2, 0 );
+	  paint.drawLine( center-2, mFontHeight-1, center+2, mFontHeight-1 );
+	}
+      }
+      else // Solid block shape
+      {
+	paint.fillRect( c.x1 - startx, 0, mUnitWidth, mFontHeight, cbg );
+	useFg = true;
+	fg = cfg;
+      }
+    }
+  }
+  else
+  {
+    transparent = true;
+    paint.setPen( cbg );
+    paint.drawRect( c.x1 - startx, 0, mUnitWidth*mNumCell, mFontHeight );
+  }
+
+  //
+  // Draw the text on the cursor position and to the end of the cell.
+  //
+  if( c.offset < documentSize() )
+  {
+    int flag = THIS_FPTR(printCell)( mPrintBuf, (unsigned char)c.data );
+    if( onBookmark == true )
+    {
+      // Inside bookmark. Draw text with bookmark foreground.
+      paint.setPen( mColor.bookmarkFg );
+      // ## paint.drawText( c.x1-startx, mFontAscent, &mPrintBuf[c.cell],
+      // mNumCell-c.cell );
+      paint.drawText( c.x1-startx, mFontAscent, 
+		      QString::fromLocal8Bit(&mPrintBuf[c.cell]), 
+ 		      mNumCell-c.cell );
+    }
+
+    if( transparent == false || onBookmark == false )
+    {
+      paint.setPen( flag == 0 || useFg == true ? fg : mColor.nonPrintFg );
+      // ## paint.drawText( c.x1 - startx, mFontAscent, &mPrintBuf[c.cell], 1);
+      paint.drawText( c.x1 - startx, mFontAscent, 
+		      QString::fromLocal8Bit(&mPrintBuf[c.cell]), 1 );
+    }
+  }
+
+  //
+  // Draw the cursor in secodary edit area.
+  //
+  if( mLayout.secondaryMode == SDisplayLayout::hide )
+  {
+    return;
+  }
+
+
+  if( mMark.inside( c.offset ) == true )
+  {
+    bg = mColor.markBg;
+    fg = mSelect.inside( c.offset ) ? mColor.selectFg : mColor.markFg;
+    useFg = true;
+  }
+  else if( mSelect.inside( c.offset ) == true )
+  {
+    bg = mColor.selectBg;
+    fg = mColor.selectFg;
+    useFg = true;
+  }
+  else
+  {
+    bg = (line+1) % 2 ? mColor.textBg : mColor.secondTextBg;
+    fg = mColor.secondaryFg;
+    useFg = false; // Can be true later.
+  }
+
+
+
+  //
+  // Fill in the general backround color
+  //
+  if( onBookmark == true )
+  {
+    if( useFg == true )
+    {
+      paint.fillRect( c.x2-startx, 2, mUnitWidth, mFontHeight-4,
+		      mColor.bookmarkBg );
+    }
+    else
+    {
+      paint.fillRect( c.x2-startx, 1, mUnitWidth, mFontHeight-2,
+		      mColor.bookmarkBg );
+    }
+  }
+  else
+  {
+    paint.fillRect( c.x2 - startx, 0, mUnitWidth, mFontHeight, bg );
+  }
+
+  //
+  // Draw the cursor shape
+  //
+  transparent = false;
+  if( mActiveEditor == edit_secondary )
+  {
+    if( mShowCursor == true ) // Cursor blink on
+    {
+      if( c.mSecondaryShape == SCursorSpec::thin )
+      {
+	paint.setPen( cbg );
+	int center = c.x2 - startx - 1;
+	transparent = true;
+
+	if( c.thickState == true )
+	{
+	  paint.drawLine( center, 0, center, mFontHeight - 1 );
+	  paint.drawLine( center+1, 0, center+1, mFontHeight - 1 );
+	}
+	else
+	{
+	  paint.drawLine( center, 0, center, mFontHeight - 1 );
+	  paint.drawLine( center-2, 0, center+2, 0 );
+	  paint.drawLine( center-2, mFontHeight-1, center+2, mFontHeight-1 );
+	}
+      }
+      else
+      {
+	paint.fillRect( c.x2 - startx, 0, mUnitWidth, mFontHeight, cbg );
+	useFg = true;
+	fg = cfg;
+      }
+    }
+  }
+  else
+  {
+    transparent = true;
+    paint.setPen( cbg );
+    paint.drawRect( c.x2 - startx, 0, mUnitWidth, mFontHeight );
+  }
+
+  //
+  // Draw the text on the cursor position and to the end of the cell.
+  //
+  if( c.offset < documentSize() )
+  {
+    int flag = printAsciiCell( mPrintBuf, (unsigned char)c.data );
+    if( onBookmark == true )
+    {
+      // Inside bookmark. Draw text with bookmark foreground.
+      paint.setPen( flag == 0 ? mColor.bookmarkFg : mColor.nonPrintFg );
+      // ## paint.drawText( c.x2-startx, mFontAscent, mPrintBuf, 1 );
+      paint.drawText( c.x2-startx, mFontAscent, 
+		      QString::fromLocal8Bit(mPrintBuf), 1 );
+    }
+    if( transparent == false || onBookmark == false )
+    {
+      paint.setPen( flag == 0 || useFg == true ? fg : mColor.nonPrintFg );
+      // ## paint.drawText( c.x2 - startx, mFontAscent, mPrintBuf, 1 );
+      paint.drawText( c.x2 - startx, mFontAscent, 
+		      QString::fromLocal8Bit(mPrintBuf), 1 );
+    }
+  }
+
+}
+
+
+
+
+void CHexBuffer::cursorReset( void )
+{
+  mCursor.reset();
+  cursorCompute();
+}
+
+void CHexBuffer::cursorCompute( void )
+{
+  mCursor.prev = mCursor.curr;
+
+  if( mCursor.next.offset >= documentSize() )
+  {
+    if( documentSize() == 0 )
+    {
+      mCursor.curr.offset  = 0;
+      mCursor.curr.data    = 0;
+      mCursor.curr.cell    = 0;
+      mCursor.curr.maxCell = mNumCell;
+
+      int x = mCursor.curr.offset % mLayout.lineSize;
+      mCursor.curr.x1 = mTextStart1;
+      mCursor.curr.x1 += (x * mNumCell + mCursor.curr.cell) * mUnitWidth;
+      mCursor.curr.x1 += (x / mLayout.columnSize) * mSplitWidth;
+      mCursor.curr.x2 = mTextStart2 + x * mUnitWidth;
+      mCursor.curr.y  = (mCursor.curr.offset/mLayout.lineSize) *
+	(mFontHeight+mLayout.horzGridWidth);
+      return;
+
+    }
+    if( mFixedSizeMode == true )
+    {
+      uint max = mMaximumSize - 1;
+      uint off = mCursor.curr.offset % mLayout.lineSize;
+      uint end = max % mLayout.lineSize;
+      if( off > end )
+      {
+	uint diff = off - end;
+	if( max + diff > mLayout.lineSize )
+	{
+	  mCursor.next.offset = max + diff - mLayout.lineSize;
+	}
+	else
+	{
+	  mCursor.next.offset = 0;
+	}
+      }
+      else
+      {
+	uint diff = end - off;
+	mCursor.next.offset = diff > max ? max : max - diff;
+      }
+    }
+    else
+    {
+      mCursor.next.offset = documentSize();
+    }
+  }
+
+  mCursor.curr.offset  = mCursor.next.offset;
+  mCursor.curr.data    = data()[ mCursor.curr.offset ];
+  mCursor.curr.cell    = mCursor.next.cell;
+  mCursor.curr.maxCell = mNumCell;
+
+  int x = mCursor.curr.offset % mLayout.lineSize;
+
+  mCursor.curr.x1 = mTextStart1;
+  mCursor.curr.x1 += (x * mNumCell + mCursor.curr.cell) * mUnitWidth;
+  mCursor.curr.x1 += (x / mLayout.columnSize) * mSplitWidth;
+  mCursor.curr.x2 = mTextStart2 + x * mUnitWidth;
+  mCursor.curr.y  = (mCursor.curr.offset/mLayout.lineSize) *
+    (mFontHeight + mLayout.horzGridWidth);
+}
+
+
+bool CHexBuffer::setCursorPosition( int x, int y, bool init, bool cellLevel )
+{
+  if( documentPresent() == false )
+  {
+    return( false );
+  }
+
+  uint line  = y < 0 ? 0 : y / lineHeight();
+  uint entry = 0;
+  int  bit   = 7;
+
+  if( init == false )
+  {
+    if( mCursor.area() == edit_primary )
+    {
+      int start = mTextStart1;
+      if( x < start - (int)mLayout.separatorMarginWidth )
+      {
+	return( false );
+      }
+      else
+      {
+	int stop  = mTextStart1 + mPrimaryWidth + mLayout.separatorMarginWidth;
+	int width = mNumCell * mUnitWidth;
+	int space = mSplitWidth;
+
+	for( int position = start, i=0; position < stop; i++ )
+	{
+	  if( x <= position + width )
+	  {
+	    if( cellLevel == true )
+	    {
+	      while( bit > 0 )
+	      {
+		if( x <= position + mUnitWidth )
+		{
+		  break;
+		}
+		bit -= mCursor.cellWeight();
+		position += mUnitWidth;
+	      }
+	    }
+	    break;
+	  }
+	  position += width + (((i+1) % mLayout.columnSize) ? 0 : space);
+	  entry    += 1;
+	}
+      }
+    }
+    else
+    {
+      int start = mTextStart2;
+      if( x < start - (int)mLayout.separatorMarginWidth ||
+	  mLayout.secondaryMode == SDisplayLayout::hide )
+      {
+	return( false );
+      }
+      int stop  = mTextStart2 + mLayout.lineSize * mUnitWidth;
+      int width = mUnitWidth * 1;
+      int space = 0;
+
+      for( int position = start; position < stop; )
+      {
+	if( x <= position + width )
+	{
+	  break;
+	}
+	position += width + space;
+	entry    += 1;
+      }
+    }
+  }
+  else
+  {
+    int start = mTextStart1;
+    int stop  = start + mPrimaryWidth + mLayout.separatorMarginWidth;
+    if( x >= start - (int)mLayout.separatorMarginWidth && x <= stop )
+    {
+      int width = mUnitWidth * mNumCell;
+      int space = mSplitWidth;
+
+      for( int position = start, i=0; position < stop; i++ )
+      {
+	if( x <= position + width )
+	{
+	  if( cellLevel == true )
+	  {
+	    while( bit > 0 )
+	    {
+	      if( x <= position + mUnitWidth )
+	      {
+		break;
+	      }
+	      bit -= mCursor.cellWeight();
+	      position += mUnitWidth;
+	    }
+	  }
+	  break;
+	}
+	position += width + (((i+1) % mLayout.columnSize) ? 0 : space);
+	entry    += 1;
+      }
+
+      mActiveEditor = edit_primary;
+    }
+    else if( mLayout.secondaryMode != SDisplayLayout::hide )
+    {
+      start = mTextStart2;
+      stop  = mTextStart2 + mLayout.lineSize * mUnitWidth +
+	mLayout.edgeMarginWidth;
+      if( x >= start - (int)mLayout.separatorMarginWidth && x <= stop )
+      {
+	int width = mUnitWidth * 1;
+	int space = 0;
+
+	for( int position = start; position < stop; )
+	{
+	  if( x <= position + width )
+	  {
+	    break;
+	  }
+	  position += width + space;
+	  entry    += 1;
+	}
+
+	mActiveEditor = edit_secondary;
+      }
+    }
+    else
+    {
+      return( false );
+    }
+  }
+
+  uint offset = line * mLayout.lineSize + entry;
+  if( offset > documentSize() )
+  {
+    offset = documentSize();
+  }
+
+  mCursor.setOffset( offset );
+  mCursor.setBit( bit < 0 ? 0 : bit );
+
+  cursorCompute();
+  if( mActiveEditor != mCursor.area() )
+  {
+    mCursor.setArea( mActiveEditor );
+    setEditMode( mEditMode );
+  }
+
+  return( true );
+}
+
+
+
+
+bool CHexBuffer::inputAtCursor( QChar c )
+{
+  if( documentPresent() == false || mInputMode.noInput() == true )
+  {
+    if( mInputMode.noInput() == true ) { inputSound(); }
+    return( false );
+  }
+
+  if( c.isPrint() == false )
+  {
+    inputSound();
+    return( false );
+  }
+
+  unsigned char dest;
+  bool insert;
+  if( mEditMode == EditReplace || mCursor.curr.cell > 0 )
+  {
+    if( mCursor.curr.offset >= documentSize() )
+    {
+      dest   = 0;
+      insert = true;
+    }
+    else
+    {
+      dest   = (unsigned char)data()[ mCursor.curr.offset ];
+      insert = false;
+    }
+  }
+  else
+  {
+    dest   = 0;
+    insert = true;
+  }
+
+  if( insert == true && mInputMode.allowResize == false )
+  {
+    inputSound();
+    return( false );
+  }
+
+  if( mActiveEditor == edit_primary )
+  {
+    // ## if( THIS_FPTR(inputCell)( &dest, c.latin1(), mCursor.curr.cell ) 
+    //== false )
+    if( THIS_FPTR(inputCell)( &dest, QString(c).local8Bit()[0], 
+			      mCursor.curr.cell ) == false )
+    {
+      inputSound();
+      return( false );
+    }
+  }
+  else if( mActiveEditor == edit_secondary )
+  {
+    // ## if( inputAscii( &dest, c.latin1(), mCursor.curr.cell ) == false )
+    if( !inputAscii( &dest, QString(c).local8Bit()[0], mCursor.curr.cell ) )
+    {
+      inputSound();
+      return( false );
+    }
+  }
+  else
+  {
+    return( false );
+  }
+
+  recordStart( mCursor );
+  recordReplace( mCursor, insert == true ? 0 : 1, (char*)&dest, 1 );
+  cursorRight( cursorPrimaryEdit() );
+  recordEnd( mCursor );
+
+  computeNumLines();
+  return( true );
+}
+
+
+
+int CHexBuffer::inputAtCursor( const QByteArray &buf, uint oldSize )
+{
+  if( documentPresent() == false )
+  {
+    return( Err_NoActiveDocument );
+  }
+  if( buf.isNull() == true )
+  {
+    return( Err_EmptyArgument );
+  }
+
+  if( mInputMode.noInput() == true )
+  {
+    inputSound();
+    return( Err_WriteProtect );
+  }
+
+  if( mInputMode.allowResize == false )
+  {
+    inputSound();
+    return( Err_NoResize );
+  }
+
+  recordStart( mCursor );
+  recordReplace( mCursor, oldSize, (char*)&buf[0], buf.size() );
+  cursorStep( buf.size(), true, false );
+  recordEnd( mCursor );
+
+  computeNumLines();
+  return( Err_Success );
+}
+
+
+bool CHexBuffer::removeAtCursor( bool beforeCursor )
+{
+  if( documentPresent() == false )
+  {
+    return( false );
+  }
+
+  if( mInputMode.noInput() == true || mInputMode.allowResize == false )
+  {
+    inputSound();
+    return( false );
+  }
+
+
+  if( mSelect.valid() == true )
+  {
+    cutSelection();
+    return( true );
+  }
+
+
+  if( beforeCursor == true )
+  {
+    if( mCursor.curr.offset == 0 )
+    {
+      return( false );
+    }
+
+    recordStart( mCursor );
+    cursorLeft( false );
+    recordReplace( mCursor, 1, 0, 0 );
+    recordEnd( mCursor );
+
+    computeNumLines();
+    return( true );
+  }
+  else
+  {
+    if( mCursor.curr.offset + 1 > documentSize() )
+    {
+      return( false );
+    }
+
+    recordStart( mCursor );
+    recordReplace( mCursor, 1, 0, 0 );
+    recordEnd( mCursor );
+
+    computeNumLines();
+    return( true );
+  }
+}
+
+
+
+int CHexBuffer::locateRange(const SExportRange &range, uint &start, uint &stop)
+{
+  if( range.mode == SExportRange::All )
+  {
+    start = 0;
+    stop  = documentSize();
+  }
+  else if( range.mode == SExportRange::Selection )
+  {
+    if( mSelect.valid() == false )
+    {
+      return( Err_NoSelection );
+    }
+    start = mSelect.curr.start;
+    stop  = mSelect.curr.stop;
+  }
+  else if( range.mode == SExportRange::Range )
+  {
+    start = range.start;
+    stop  = range.stop;
+  }
+  else
+  {
+    return( Err_IllegalMode );
+  }
+
+  if( start >= stop )
+  {
+    return( Err_IllegalRange );
+  }
+
+  return( Err_Success );
+}
+
+
+int CHexBuffer::exportText( const SExportText &ex, CProgress &p )
+{
+  uint start, stop;
+  int errCode = locateRange( ex.range, start, stop );
+  if( errCode != Err_Success )
+  {
+    p.finish();
+    return( errCode );
+  }
+
+  QFile file( ex.destFile );
+  if( file.open( IO_WriteOnly ) == false )
+  {
+    p.finish();
+    return( Err_OpenWriteFailed );
+  }
+
+  uint startLine = calculateLine( start );
+  if( startLine >= (uint)numLines() )
+  {
+    startLine = numLines() == 0 ? 0 : numLines() - 1;
+  }
+
+  uint stopLine  = calculateLine( stop );
+  if( stopLine >= (uint)numLines() )
+  {
+    stopLine = numLines() == 0 ? 0 : numLines() - 1;
+  }
+
+  uint totalSize   = stopLine - startLine + 1;
+  uint remaining   = stopLine - startLine + 1;
+  uint bytePerLine = mOffsetSize + 1 + (mNumCell + 2)*mLayout.lineSize + 1;
+  uint linePerStep = 20;
+
+  QByteArray array( bytePerLine * linePerStep + 1 ); // Line is 0 terminated
+  if( array.isEmpty() == true )
+  {
+    p.finish();
+    return( Err_NoMemory );
+  }
+
+  while( remaining > 0 )
+  {
+    uint blockSize = remaining > linePerStep ? linePerStep : remaining;
+    uint printSize = 0;
+
+    for( uint i = 0; i < blockSize; i++, startLine++ )
+    {
+      printSize += printLine( &array[printSize], startLine );
+    }
+
+    int writeSize = file.writeBlock( &array[0], printSize );
+    if( writeSize == -1 )
+    {
+      p.finish();
+      return( Err_WriteFailed );
+    }
+
+    remaining -= blockSize;
+    if( p.expired() == true )
+    {
+      int errCode = p.step( (float)(totalSize-remaining)/(float)totalSize );
+      if( errCode == Err_Stop && remaining > 0 )
+      {
+	p.finish();
+	return( Err_OperationAborted );
+      }
+    }
+  }
+
+  p.finish();
+  return( Err_Success );
+}
+
+
+
+int CHexBuffer::exportHtml( const SExportHtml &ex, CProgress &p )
+{
+  uint start, stop;
+  int errCode = locateRange( ex.range, start, stop );
+  if( errCode != Err_Success )
+  {
+    p.finish();
+    return( errCode );
+  }
+
+  uint startLine = calculateLine( start );
+  if( startLine >= (uint)numLines() )
+  {
+    startLine = numLines() == 0 ? 0 : numLines() - 1;
+  }
+
+  uint stopLine  = calculateLine( stop );
+  if( stopLine >= (uint)numLines() )
+  {
+    stopLine = numLines() == 0 ? 0 : numLines() - 1;
+  }
+
+  uint totalSize = stopLine - startLine + 1;
+  uint remaining = stopLine - startLine + 1;
+
+  if( ex.linePerPage == 0 )
+  {
+    p.finish();
+    return( Err_IllegalArgument );
+  }
+
+  uint linePerPage = ex.linePerPage;
+  uint numFiles    = remaining/linePerPage + (remaining%linePerPage ? 1 : 0);
+  uint fileCount   = 0;
+
+  QStringList fileNames, offsets;
+  QString name, offset;
+  for( uint i=0; i < numFiles; i++ )
+  {
+    name.sprintf( "%08d.html", i+1 );
+    fileNames.append( QString("%1/%2%3").arg(ex.package).arg(ex.prefix).
+		      arg(name));
+  }
+  name.sprintf( "%08d.html", 0 );
+  QString tocName =QString("%1/%2%3").arg(ex.package).arg(ex.prefix).arg(name);
+
+  QString linkName;
+  if( ex.symLink == true )
+  {
+    linkName = QString("%1/%2").arg(ex.package).arg("index.html");
+  }
+
+  while( remaining  > 0 )
+  {
+    THIS_FPTR(printOffset)( mPrintBuf, startLine*mLayout.lineSize );
+    mPrintBuf[mOffsetSize]=0;
+    offset.sprintf("[%s]", mPrintBuf );
+
+    uint pageSize = remaining > linePerPage ? linePerPage : remaining;
+    printHtmlDataPage( tocName, fileNames, fileCount, ex, startLine, pageSize);
+
+    remaining -= pageSize;
+    startLine += pageSize;
+    fileCount += 1;
+
+    THIS_FPTR(printOffset)( mPrintBuf, (startLine-1)*mLayout.lineSize );
+    mPrintBuf[mOffsetSize]=0;
+    offset += QString(" %1 [%2]").arg(i18n("to")).arg(mPrintBuf);
+    offsets.append(offset);
+
+    if( p.expired() == true )
+    {
+      int errCode = p.step( (float)(totalSize-remaining)/(float)totalSize );
+      if( errCode == Err_Stop && remaining > 0 )
+      {
+	printHtmlTocPage( tocName, linkName, fileNames, offsets, fileCount );
+	p.finish();
+	return( Err_OperationAborted );
+      }
+    }
+  }
+
+  printHtmlTocPage( tocName, linkName, fileNames, offsets, fileCount );
+
+  p.finish();
+  return( Err_Success );
+}
+
+
+int CHexBuffer::exportCArray( const SExportCArray &ex, CProgress &p )
+{
+  uint start, stop;
+  int errCode = locateRange( ex.range, start, stop );
+  if( errCode != Err_Success )
+  {
+    p.finish();
+    return( errCode );
+  }
+
+  QFile file( ex.destFile );
+  if( file.open( IO_WriteOnly ) == false )
+  {
+    p.finish();
+    return( Err_OpenWriteFailed );
+  }
+
+  uint startLine = calculateLine( start );
+  if( startLine >= (uint)numLines() )
+  {
+    startLine = numLines() == 0 ? 0 : numLines() - 1;
+  }
+
+  uint stopLine  = calculateLine( stop );
+  if( stopLine >= (uint)numLines() )
+  {
+    stopLine = numLines() == 0 ? 0 : numLines() - 1;
+  }
+
+  uint elementSize = ex.elementSize();
+  uint elementOnThisLine = 0;
+
+  QTextStream dest( &file );
+
+  dest << ex.variableName(stop-start).latin1() << "={" << endl;
+  for( unsigned int i=start; i<stop; i+=elementSize )
+  {
+    dest << ex.printFormatted( (const char*)&data()[i], stop-i );
+    if( i + elementSize < stop )
+    {
+      dest << ",";
+    }
+
+    if( ++elementOnThisLine >= ex.elementPerLine )
+    {
+      dest << endl;
+      elementOnThisLine = 0;
+    }
+
+    if( p.expired() == true )
+    {
+      int errCode = p.step( (float)(i-start)/(float)(stop-start) );
+      if( errCode == Err_Stop && (i+elementSize) < stop)
+      {
+	p.finish();
+	return( Err_OperationAborted );
+      }
+    }
+  }
+  dest << "};" << endl;
+
+  p.finish();
+  return( Err_Success );
+}
+
+
+
+
+
+
+
+int CHexBuffer::copySelectedText( QByteArray &array, int columnSegment )
+{
+  SExportRange range;
+  range.mode = SExportRange::Selection;
+  return( copyText( array, range, columnSegment ) );
+}
+
+
+int CHexBuffer::copyAllText( QByteArray &array )
+{
+  SExportRange range;
+  range.mode = SExportRange::All;
+  return( copyText( array, range, VisibleColumn ) );
+}
+
+
+int CHexBuffer::copyText( QByteArray &array, const SExportRange &range,
+			  int columnSegment )
+{
+  uint start, stop;
+  int errCode = locateRange( range, start, stop );
+  if( errCode != Err_Success )
+  {
+    return( errCode );
+  }
+
+  uint startLine = calculateLine( start );
+  uint stopLine  = calculateLine( stop );
+  if( startLine >= (uint)numLines() )
+  {
+    startLine = numLines() == 0 ? 0 : numLines() - 1;
+  }
+  if( stopLine >= (uint)numLines() )
+  {
+    stopLine = numLines() == 0 ? 0 : numLines() - 1;
+  }
+
+  uint bytePerLine = mOffsetSize + 1 + (mNumCell + 2)*mLayout.lineSize + 1;
+  uint size = (stopLine - startLine + 1)*bytePerLine;
+  if( array.resize( size+1 ) == false )
+  {
+    return( Err_NoMemory );
+  }
+
+  if( columnSegment == VisibleColumn )
+  {
+    columnSegment = PrimaryColumn; // Always visible
+    if( mLayout.offsetVisible == true )
+    {
+      columnSegment |= OffsetColumn;
+    }
+    if( mLayout.secondaryMode != SDisplayLayout::hide )
+    {
+      columnSegment |= SecondaryColumn;
+    }
+  }
+
+  uint offset = 0;
+  for( uint i = startLine; i <= stopLine; i++ )
+  {
+    offset += printLine( &array[offset], i, columnSegment );
+  }
+  array[size] = 0;
+
+  return( Err_Success );
+}
+
+
+int CHexBuffer::copySelectedData( QByteArray &array )
+{
+  uint start = mSelect.start();
+  uint stop  = mSelect.stop();
+
+  if( mSelect.valid() == false || start >= stop )
+  {
+    return( Err_IllegalRange );
+  }
+
+  uint size = stop - start;
+  if( array.resize( size ) == false )
+  {
+    return( Err_NoMemory );
+  }
+
+  //unsigned char *src = (unsigned char*)data();
+  //char *dst = (char*)array.data();
+
+  memcpy( &array[0], &data()[start], size );
+  return( Err_Success );
+}
+
+
+uint CHexBuffer::numPage( CHexPrinter &printer )
+{
+  QPainter paint( &printer );
+  paint.setFont( font() );
+
+  SPageMargin margin = printer.pageMargin();
+  SPageSize size = printer.pageUsableSize();
+  int headHeight, footHeight, headMargin, footMargin, freeHeight;
+
+  headHeight = footHeight = headMargin = footMargin = 0;
+  if( printer.pageHeader().enable == true )
+  {
+    headHeight = headerHeight( paint );
+    headMargin = headerMargin( paint );
+  }
+  if( printer.pageFooter().enable == true )
+  {
+    footHeight = headerHeight( paint );
+    footMargin = headerMargin( paint );
+  }
+  freeHeight = size.height - headHeight - footHeight - headMargin - footMargin;
+
+  float scale = 1.0;
+  if( (uint)mLineWidth > size.width )
+  {
+    scale = (float)size.width / (float)mLineWidth;
+  }
+  uint linePerPage = (uint) ((float)freeHeight/((float)lineHeight()*scale));
+
+  uint remaining = numLines();
+
+  return( remaining / linePerPage + (remaining % linePerPage ? 1 : 0) );
+}
+
+
+
+int CHexBuffer::print( CHexPrinter &printer, CProgress &p )
+{
+  printer.setDocName( mUrl );
+
+  QPainter paint( &printer );
+  paint.setFont( font() );
+
+  SPageMargin margin = printer.pageMargin();
+  SPageSize size = printer.pageUsableSize();
+  paint.setClipRect( margin.left, margin.top, size.width, size.height );
+
+  //printf("%d,%d,%d,%d\n", margin.left, margin.top, size.width, size.height );
+
+  int headHeight, footHeight, headMargin, footMargin, freeHeight;
+
+  headHeight = footHeight = headMargin = footMargin = 0;
+  if( printer.pageHeader().enable == true )
+  {
+    headHeight = headerHeight( paint );
+    headMargin = headerMargin( paint );
+  }
+  if( printer.pageFooter().enable == true )
+  {
+    footHeight = headerHeight( paint );
+    footMargin = headerMargin( paint );
+  }
+  freeHeight = size.height - headHeight - footHeight - headMargin - footMargin;
+
+  float scale = 1.0;
+  if( (uint)mLineWidth > size.width )
+  {
+    scale = (float)size.width / (float)mLineWidth;
+    paint.scale( scale, scale );
+  }
+
+  uint linePerPage = (uint) ((float)freeHeight/((float)lineHeight()*scale));
+  uint sx = (uint) ((float)margin.left/scale);
+  uint sy = (uint) ((float)(margin.top+headHeight+headMargin)/scale);
+
+  uint remaining = numLines();
+  uint line = 0;
+
+  #ifdef PRINTER_TEST
+  remaining = remaining > linePerPage * 10 ? linePerPage * 10 : remaining;
+  #endif
+
+
+  SPagePosition pageData( time(0), remaining, linePerPage );
+  while( remaining > 0 )
+  {
+    uint lineInPage = remaining > linePerPage ? linePerPage : remaining;
+    uint y = sy;
+
+    //
+    // Draw header and footer. Reset scaling during that operation.
+    //
+    paint.scale( 1.0/scale, 1.0/scale );
+    if( printer.pageHeader().enable == true )
+    {
+      drawHeader( paint, margin.left, size.width, margin.top, false,
+		  printer.pageHeader(), pageData );
+    }
+    if( printer.pageFooter().enable == true )
+    {
+      drawHeader( paint, margin.left, size.width,
+		  margin.top+size.height-footHeight, true,
+		  printer.pageFooter(), pageData );
+    }
+    paint.scale( scale, scale );
+
+    //
+    // Draw actual data
+    //
+    for( uint i=0; i < lineInPage; i++, line++ )
+    {
+      drawText( paint, line, sx, mLineWidth, y, false/*printer.printBlackWhite()*/ );
+      y += lineHeight();// - mLayout.horzGridWidth; // FIXME not really nice :)
+
+      if( p.expired() == true )
+      {
+	int errCode = p.step( pageData.current(), pageData.max() );
+	if( errCode == Err_Stop )
+	{
+	  p.finish();
+	  return( Err_Success ); // Success here, even if we cancel
+	}
+      }
+    }
+
+    if( p.expired() == true )
+    {
+      int errCode = p.step( pageData.current(), pageData.max() );
+      if( errCode == Err_Stop )
+      {
+	p.finish();
+	return( Err_Success );// Success here, even if we cancel
+      }
+    }
+
+    remaining -= lineInPage;
+    if( remaining > 0 )
+    {
+      printer.newPage();
+    }
+
+    pageData.step();
+  }
+
+  p.finish();
+  return( Err_Success );
+}
+
+
+
+
+
+uint CHexBuffer::printLine( char *dst, uint line )
+{
+  uint offset = line * mLayout.lineSize;
+  unsigned char *src;
+  char *start = dst;
+
+  uint dataSize;
+  if( offset >= documentSize() )
+  {
+    src = 0;
+    dataSize = 0;
+  }
+  else
+  {
+    src = (unsigned char*)&data()[ offset ];
+    dataSize = documentSize() - offset;
+  }
+
+  if( mLayout.offsetVisible == true )
+  {
+    THIS_FPTR(printOffset)( dst, offset ); dst += mOffsetSize;
+    sprintf( dst, " " ); dst += 1;
+  }
+  for( uint i=0; i < mLayout.lineSize; i++ )
+  {
+    if( i<dataSize )
+    {
+      THIS_FPTR(printCell)( dst, src[i] ); dst += mNumCell;
+    }
+    else
+    {
+      memset( dst, ' ', mNumCell ); dst += mNumCell;
+    }
+    if( mSplitWidth != 0 )
+    {
+      sprintf( dst, " " ); dst += 1;
+    }
+  }
+  if( mLayout.secondaryMode != SDisplayLayout::hide )
+  {
+    for( uint i=0; i < mLayout.lineSize; i++ )
+    {
+      if( i < dataSize )
+      {
+	printAsciiCell( dst, src[i] ); dst += 1;
+      }
+      else
+      {
+	memset( dst, ' ', 1 ); dst += 1;
+      }
+    }
+  }
+  sprintf( dst, "\n" ); dst += 1;
+  return( (uint)(dst-start) );
+}
+
+
+uint CHexBuffer::printLine( char *dst, uint line, int columnSegment )
+{
+  uint offset = line * mLayout.lineSize;
+  unsigned char *src;
+  char *start = dst;
+
+  uint dataSize;
+  if( offset >= documentSize() )
+  {
+    src = 0;
+    dataSize = 0;
+  }
+  else
+  {
+    src = (unsigned char*)&data()[ offset ];
+    dataSize = documentSize() - offset;
+  }
+
+  if( columnSegment & OffsetColumn )
+  {
+    THIS_FPTR(printOffset)( dst, offset ); dst += mOffsetSize;
+    sprintf( dst, " " ); dst += 1;
+  }
+
+  if( columnSegment & PrimaryColumn )
+  {
+    for( uint i=0; i < mLayout.lineSize; i++ )
+    {
+      if( i<dataSize )
+      {
+	THIS_FPTR(printCell)( dst, src[i] ); dst += mNumCell;
+      }
+      else
+      {
+	memset( dst, ' ', mNumCell ); dst += mNumCell;
+      }
+      if( mSplitWidth != 0 )
+      {
+	sprintf( dst, " " ); dst += 1;
+      }
+    }
+  }
+
+  if( columnSegment & SecondaryColumn )
+  {
+    for( uint i=0; i < mLayout.lineSize; i++ )
+    {
+      if( i < dataSize )
+      {
+	printAsciiCell( dst, src[i] ); dst += 1;
+      }
+      else
+      {
+	memset( dst, ' ', 1 ); dst += 1;
+      }
+    }
+  }
+
+  sprintf( dst, "\n" ); dst += 1;
+  return( (uint)(dst-start) );
+}
+
+
+
+
+
+
+
+
+
+
+
+bool CHexBuffer::cutSelection( void )
+{
+  if( documentPresent() == false || mSelect.size() == 0 )
+  {
+    return( false );
+  }
+
+  if( mInputMode.noInput() == true || mInputMode.allowResize == false )
+  {
+    inputSound();
+    return( false );
+  }
+
+  recordStart( mCursor );
+  cursorGoto( mSelect.start(), 0 );
+  recordReplace( mCursor, mSelect.size(), 0, 0 );
+  recordEnd( mCursor );
+
+  mSelect.reset();
+
+  computeNumLines();
+  return( true );
+}
+
+
+
+bool CHexBuffer::undo( void )
+{
+  if( documentPresent() == false || mUndoIndex == 0 ||
+      mInputMode.noInput() == true )
+  {
+    if( mInputMode.noInput() == true ) { inputSound(); }
+    return( false );
+  }
+
+  CHexActionGroup *group = mUndoList.at( mUndoIndex-1 );
+  if( group == 0 )
+  {
+    return( false );
+  }
+
+  mUndoIndex -= 1;
+  doActionGroup( group );
+
+  cursorGoto( group->mStartOffset, group->mStartBit );
+
+  return( true );
+}
+
+
+bool CHexBuffer::redo( void )
+{
+  if( documentPresent() == false || mUndoIndex >= mUndoList.count() ||
+      mInputMode.noInput() == true )
+  {
+    if( mInputMode.noInput() == true ) { inputSound(); }
+    return( false );
+  }
+
+  CHexActionGroup *group = mUndoList.at( mUndoIndex );
+  if( group == 0 )
+  {
+    return( false );
+  }
+
+  mUndoIndex += 1;
+  doActionGroup( group );
+
+  cursorGoto( group->mStopOffset, group->mStopBit );
+
+  return( true );
+}
+
+
+int CHexBuffer::addBookmark( int position )
+{
+  if( documentPresent() == false )
+  {
+    return( Err_NoData );
+  }
+
+  if( mBookmarkList.count() >= 9 && position == -1 )
+  {
+    return( Err_ListFull );
+  }
+
+  SCursorOffset *co = new SCursorOffset;
+  if( co == 0 )
+  {
+    fatalSound();
+    return( Err_NoMemory );
+  }
+
+  co->offset = mCursor.curr.offset;
+  co->bit    = mCursor.bit();
+
+  if( position == -1 || position > (int)mBookmarkList.count() )
+  {
+    mBookmarkList.append( co );
+  }
+  else
+  {
+    mBookmarkList.remove( (uint)position );
+    mBookmarkList.insert( (uint)position, co );
+  }
+
+  updateBookmarkMap(false);
+  return( Err_Success );
+}
+
+
+bool CHexBuffer::removeBookmark( int position )
+{
+  if( position < 0 )
+  {
+    if( mBookmarkList.count() == 0 )
+    {
+      return( false );
+    }
+    mBookmarkList.clear();
+  }
+  else
+  {
+    if( (uint)position >= mBookmarkList.count() )
+    {
+      return( false );
+    }
+    mBookmarkList.remove( position );
+  }
+
+  updateBookmarkMap(false);
+  return( true );
+}
+
+
+void CHexBuffer::updateBookmarkMap( bool resize )
+{
+  if( resize == true )
+  {
+    mBookmarkMap.resize( documentSize()/200 + 3 );
+  }
+  mBookmarkMap.fill(0);
+
+  int bookmarkMapSize = mBookmarkMap.size();
+  for( SCursorOffset *c=mBookmarkList.first(); c!=0; c=mBookmarkList.next() )
+  {
+    int bookmarkOffset = c->offset / 200;
+    if( bookmarkOffset < bookmarkMapSize )
+    {
+      //
+      // Espen 2000-05-16:
+      // I do this test to avoid some Qt warnings when I have closed
+      // or reduced the size of the documnet while the (now invalid)
+      // bookmarks still exist.
+      //
+      mBookmarkMap.setBit(bookmarkOffset);
+    }
+  }
+}
+
+
+int CHexBuffer::findFirst( SSearchControl &sc )
+{
+  mMark.reset();
+  int errCode = scanData( sc, true );
+  return( errCode );
+}
+
+int CHexBuffer::findNext( SSearchControl &sc )
+{
+  sc.fromCursor = true;
+  int errCode = scanData( sc, false );
+  return( errCode );
+}
+
+int CHexBuffer::findWrap( SSearchControl &sc )
+{
+  if( sc.wrapValid == false )
+  {
+    return( Err_NoMatch );
+  }
+  sc.wrapValid = false;
+
+  sc.fromCursor = false;
+  sc.wrapActive = true;
+  int errCode = scanData( sc, false );
+  sc.fromCursor = true;
+  return( errCode );
+}
+
+
+
+
+int CHexBuffer::replaceAll( SSearchControl &sc, bool init )
+{
+  if( init == true )
+  {
+    initScanData( sc );
+  }
+
+  if( sc.key.isEmpty() == true )
+  {
+    return( Err_EmptyArgument );
+  }
+
+  if( documentSize() == 0 )
+  {
+    return( Err_EmptyDocument );
+  }
+
+  uint head, tail;
+  if( sc.inSelection == true )
+  {
+    if( mSelect.valid() == false )
+    {
+      return( Err_NoSelection );
+    }
+
+    head = mSelect.start();
+    tail = mSelect.stop();
+  }
+  else
+  {
+    head = 0;
+    tail = documentSize();
+  }
+
+  uint start, stop;
+  if( sc.fromCursor == false )
+  {
+    if( sc.wrapActive == true )
+    {
+      start = sc.forward == true ? head : sc.wrapMark;
+      stop  = sc.forward == true ? sc.wrapMark+sc.key.size() : tail;
+    }
+    else
+    {
+      start = head;
+      stop  = tail;
+    }
+  }
+  else if( sc.forward == true )
+  {
+    start = cursorOffset() < head ? head : cursorOffset();
+    stop  = sc.wrapActive == true ? sc.wrapMark+sc.key.size() : tail;
+  }
+  else
+  {
+    start = sc.wrapActive == true ? sc.wrapMark : head;
+    stop  = cursorOffset() > tail ? tail : cursorOffset();
+  }
+
+  if( sc.forward == true && start + sc.key.size() > stop )
+  {
+    //
+    // When searching backwards "stop" is the last offset from where
+    // we do a memcmp() upward in memory. An overflow for that
+    // situation is taken care of below.
+    //
+    return( Err_NoMatch );
+  }
+
+  if( stop + sc.key.size() > tail )
+  {
+    uint diff = stop + sc.key.size() - tail;
+    stop = stop > diff ? stop - diff : 0;
+  }
+
+  if( mInputMode.noInput() == true )
+  {
+    inputSound();
+    return( Err_WriteProtect );
+  }
+
+  recordStart( mCursor );
+  uint numReplaced = 0;
+
+  if( sc.forward == true )
+  {
+    for( uint i = start; i <= stop ; )
+    {
+      if( memcmp( &data()[i], sc.key.data(), sc.key.size() ) != 0 )
+      {
+	i++;
+      }
+      else
+      {
+	cursorGoto( i, 7 );
+	recordReplace( mCursor, sc.key.size(), sc.val.data(), sc.val.size() );
+	numReplaced += 1;
+
+	if( sc.inSelection == true )
+	{
+	  if( sc.key.size() > sc.val.size() )
+	  {
+	    mSelect.shrink( sc.key.size() - sc.val.size() );
+	  }
+	  else
+	  {
+	    mSelect.expand( sc.val.size() - sc.key.size() );
+	  }
+	}
+	
+	if( sc.key.size() > sc.val.size() )
+	{
+	  uint diff = sc.key.size() - sc.val.size();
+	  stop -= QMIN( stop, diff );
+	}
+	else if( sc.key.size() < sc.val.size() )
+	{
+	  stop += sc.val.size() - sc.key.size();
+	}
+
+	i += sc.val.size();
+	cursorStep( sc.val.size(), true, false );
+      }
+    }
+  }
+  else
+  {
+    for( uint i = stop; i >= start; )
+    {
+      if( memcmp( &data()[i], sc.key.data(), sc.key.size() ) != 0 )
+      {
+	if( i == 0 ) { break; }
+	i--;
+      }
+      else
+      {
+	cursorGoto( i, 7 );
+	recordReplace( mCursor, sc.key.size(), sc.val.data(), sc.val.size() );
+	numReplaced += 1;
+
+	if( sc.inSelection == true )
+	{
+	  if( sc.key.size() > sc.val.size() )
+	  {
+	    mSelect.shrink( sc.key.size() - sc.val.size() );
+	  }
+	  else
+	  {
+	    mSelect.expand( sc.val.size() - sc.key.size() );
+	  }
+	}
+
+	i -= QMIN( i, sc.key.size() );
+	if( i == 0 ) { break; }
+      }
+    }
+  }
+
+  recordEnd( mCursor );
+  computeNumLines();
+
+  if( numReplaced == 0 )
+  {
+    return( Err_NoMatch );
+  }
+
+  sc.numReplace += numReplaced;
+  sc.match = true;
+  mMark.reset();
+
+  return( Err_Success );
+}
+
+
+int CHexBuffer::replaceMarked( SSearchControl &sc )
+{
+  if( documentSize() == 0 )
+  {
+    return( Err_EmptyDocument );
+  }
+
+  if( mMark.valid() == false )
+  {
+    return( Err_NoMark );
+  }
+
+  bool inSelection;
+  if( mSelect.valid() == true )
+  {
+    if( mMark.start() >= mSelect.start() && mMark.stop() <= mSelect.stop() )
+    {
+      inSelection = true;
+    }
+    else
+    {
+      inSelection = false;
+    }
+  }
+  else
+  {
+    inSelection = false;
+  }
+
+  if( mInputMode.noInput() == true )
+  {
+    inputSound();
+    return( Err_WriteProtect );
+  }
+
+  recordStart( mCursor );
+  cursorGoto( mMark.start(), 7 );
+  recordReplace( mCursor, mMark.size(), sc.val.data(), sc.val.size() );
+  sc.numReplace += 1;
+
+  if( inSelection == true )
+  {
+    if( mMark.size() > sc.val.size() )
+    {
+      mSelect.shrink( mMark.size() - sc.val.size() );
+    }
+    else
+    {
+      sc.wrapMark += sc.val.size() - mMark.size();
+      mSelect.expand( sc.val.size() - mMark.size() );
+    }
+  }
+
+
+  if( sc.wrapActive == false )
+  {
+    if( sc.forward == false )
+    {
+      sc.wrapMark += mMark.size() > sc.val.size() ?
+	mMark.size() - sc.val.size() : sc.val.size() - mMark.size();
+    }
+  }
+
+
+  recordEnd( mCursor );
+  computeNumLines();
+
+  if( sc.forward == true )
+  {
+    //
+    // We must step over the area we have just altered. This is
+    // vital if the search key contains a pattern that exists in
+    // the replace data buffer.
+    //
+    cursorStep( sc.val.size(), true, false );
+  }
+  mMark.reset();
+  return( Err_Success );
+}
+
+
+#if 0
+
+int CHexBuffer::replaceAll( SSearchControl &sc, bool init )
+{
+  if( init == true )
+  {
+    initScanData( sc );
+  }
+
+  if( sc.key.isEmpty() == true )
+  {
+    return( Err_EmptyArgument );
+  }
+
+  if( documentSize() == 0 )
+  {
+    return( Err_EmptyDocument );
+  }
+
+  uint head, tail;
+  if( sc.inSelection == true )
+  {
+    if( mSelect.valid() == false )
+    {
+      return( Err_NoSelection );
+    }
+
+    head = mSelect.start();
+    tail = mSelect.stop();
+  }
+  else
+  {
+    head = 0;
+    tail = documentSize();
+  }
+
+  uint start, stop;
+  if( sc.fromCursor == false )
+  {
+    if( sc.wrapActive == true )
+    {
+      start = sc.forward == true ? head : sc.wrapMark;
+      stop  = sc.forward == true ? sc.wrapMark : tail;
+    }
+    else
+    {
+      start = head;
+      stop  = tail;
+    }
+  }
+  else if( sc.forward == true )
+  {
+    start = cursorOffset() < head ? head : cursorOffset();
+    stop  = sc.wrapActive == true ? sc.wrapMark : tail;
+  }
+  else
+  {
+    start = sc.wrapActive == true ? sc.wrapMark : head;
+    stop  = cursorOffset() > tail ? tail : cursorOffset();
+  }
+
+
+  if( start + sc.key.size() > stop )
+  {
+    return( Err_NoMatch );
+  }
+
+  if( stop + sc.key.size() > tail )
+  {
+    uint diff = stop + sc.key.size() - tail;
+    stop = stop > diff ? stop - diff : 0;
+  }
+
+  if( mInputMode.noInput() == true )
+  {
+    inputSound();
+    return( Err_WriteProtect );
+  }
+
+  recordStart( mCursor );
+  uint numReplaced = 0;
+
+  if( sc.forward == true )
+  {
+    for( uint i = start; i <= stop; i++ )
+    {
+      if( memcmp( &data()[i], sc.key.data(), sc.key.size() ) == 0 )
+      {
+	cursorGoto( i, 7 );
+	recordReplace( mCursor, sc.key.size(), sc.val.data(), sc.val.size() );
+	numReplaced += 1;
+
+	if( sc.inSelection == true )
+	{
+	  if( sc.key.size() > sc.val.size() )
+	  {
+	    mSelect.shrink( sc.key.size() - sc.val.size() );
+	  }
+	  else
+	  {
+	    mSelect.expand( sc.val.size() - sc.key.size() );
+	  }
+	}
+
+	if( sc.key.size() > sc.key.size() )
+	{
+	  uint diff = sc.key.size() - sc.val.size();
+	  i += diff - 1;
+	}
+	else if( sc.key.size() < sc.val.size() )
+	{
+	  uint diff = sc.val.size() - sc.key.size();
+	  stop += diff;
+	}
+	else
+	{
+	  i += sc.val.size() - 1;
+	}
+	cursorStep( sc.val.size(), true, false );
+      }
+    }
+  }
+  else
+  {
+    for( uint i = stop; i >= start; i-- )
+    {
+      if( memcmp( &data()[i], sc.key.data(), sc.key.size() ) == 0 )
+      {
+	cursorGoto( i, 7 );
+	recordReplace( mCursor, sc.key.size(), sc.val.data(), sc.val.size() );
+	numReplaced += 1;
+
+	if( sc.inSelection == true )
+	{
+	  if( sc.key.size() > sc.val.size() )
+	  {
+	    mSelect.shrink( sc.key.size() - sc.val.size() );
+	  }
+	  else
+	  {
+	    mSelect.expand( sc.val.size() - sc.key.size() );
+	  }
+	}
+
+      }
+      if( i == 0 ) { break; }
+    }
+  }
+
+  recordEnd( mCursor );
+  computeNumLines();
+
+  if( numReplaced == 0 )
+  {
+    return( Err_NoMatch );
+  }
+
+  sc.numReplace += numReplaced;
+  sc.match = true;
+  mMark.reset();
+
+  return( Err_Success );
+}
+
+
+int CHexBuffer::replaceMarked( SSearchControl &sc )
+{
+  if( documentSize() == 0 )
+  {
+    return( Err_EmptyDocument );
+  }
+
+  if( mMark.valid() == false )
+  {
+    return( Err_NoMark );
+  }
+
+  bool inSelection;
+  if( mSelect.valid() == false )
+  {
+    if( mMark.start() >= mSelect.start() && mMark.stop() <= mSelect.stop() )
+    {
+      inSelection = true;
+    }
+    else
+    {
+      inSelection = false;
+    }
+  }
+  else
+  {
+    inSelection = false;
+  }
+
+  if( mInputMode.noInput() == true )
+  {
+    inputSound();
+    return( Err_WriteProtect );
+  }
+
+  recordStart( mCursor );
+  cursorGoto( mMark.start(), 7 );
+  recordReplace( mCursor, mMark.size(), sc.val.data(), sc.val.size() );
+  sc.numReplace += 1;
+
+  if( inSelection == true )
+  {
+    if( mMark.size() > sc.val.size() )
+    {
+      mSelect.shrink( mMark.size() - sc.val.size() );
+    }
+    else
+    {
+      mSelect.expand( sc.val.size() - mMark.size() );
+    }
+  }
+
+  recordEnd( mCursor );
+  computeNumLines();
+  mMark.reset();
+
+  return( Err_Success );
+}
+
+#endif
+
+
+int CHexBuffer::initScanData( SSearchControl &sc )
+{
+  sc.wrapValid  = false;
+  sc.wrapActive = false;
+  sc.wrapMark   = 0;
+  sc.match      = false;
+  sc.numReplace = 0;
+
+  uint head, tail;
+  if( sc.inSelection == true )
+  {
+    if( mSelect.valid() == false )
+    {
+      return( Err_NoSelection );
+    }
+
+    head = mSelect.start();
+    tail = mSelect.stop();
+  }
+  else
+  {
+    head = 0;
+    tail = documentSize();
+  }
+
+  if( sc.fromCursor == false )
+  {
+    sc.wrapValid  = false;
+    sc.wrapActive = false;
+    sc.wrapMark   = 0;
+  }
+  else if( sc.forward == true )
+  {
+    if( cursorOffset() > tail )
+    {	
+      sc.wrapValid  = true;
+      sc.wrapActive = false;
+      sc.wrapMark   = tail;
+    }
+    else if( cursorOffset() <= head )
+    {
+      sc.wrapValid  = false;
+      sc.wrapActive = false;
+      sc.wrapMark   = 0;
+    }
+    else
+    {
+      sc.wrapValid  = true;
+      sc.wrapActive = false;
+      sc.wrapMark   = cursorOffset();
+    }
+  }
+  else
+  {
+    if( cursorOffset() >= tail )
+    {
+      sc.wrapValid  = false;
+      sc.wrapActive = false;
+      sc.wrapMark   = 0;
+    }
+    else if( cursorOffset() < head )
+    {
+      sc.wrapValid  = true;
+      sc.wrapActive = false;
+      sc.wrapMark   = head;
+    }
+    else
+    {
+      sc.wrapValid  = true;
+      sc.wrapActive = false;
+      sc.wrapMark   = cursorOffset();
+    }
+  }
+
+  return( Err_Success );
+}
+
+
+
+int CHexBuffer::scanData( SSearchControl &sc, bool init )
+{
+  if( init == true )
+  {
+    int errCode = initScanData( sc );
+    if( errCode != Err_Success )
+    {
+      return( errCode );
+    }
+  }
+
+  if( sc.key.isEmpty() == true )
+  {
+    return( Err_EmptyArgument );
+  }
+
+  if( documentSize() == 0 )
+  {
+    return( Err_EmptyDocument );
+  }
+
+  uint head, tail;
+  if( sc.inSelection == true )
+  {
+    if( mSelect.valid() == false )
+    {
+      return( Err_NoSelection );
+    }
+
+    head = mSelect.start();
+    tail = mSelect.stop();
+  }
+  else
+  {
+    head = 0;
+    tail = documentSize();
+  }
+
+  uint start, stop;
+  if( sc.fromCursor == false )
+  {
+    if( sc.wrapActive == true )
+    {
+      start = sc.forward == true ? head : sc.wrapMark;
+      stop  = sc.forward == true ? sc.wrapMark+sc.key.size() : tail;
+    }
+    else
+    {
+      start = head;
+      stop  = tail;
+    }
+  }
+  else if( sc.forward == true )
+  {
+    start = cursorOffset() < head ? head : cursorOffset();
+    stop  = sc.wrapActive == true ? sc.wrapMark : tail;
+  }
+  else
+  {
+    start = sc.wrapActive == true ? sc.wrapMark : head;
+    stop  = cursorOffset() > tail ? tail : cursorOffset();
+  }
+
+  if( sc.forward == true && start + sc.key.size() > stop )
+  {
+    //
+    // When searching backwards "stop" is the last offset from where
+    // we do a memcmp() upward in memory. An overflow for that
+    // situation is taken care of below.
+    //
+    return( stop + sc.key.size() < tail ? Err_WrapBuffer : Err_NoData );
+  }
+
+  if( stop + sc.key.size() > tail )
+  {
+    uint diff = stop + sc.key.size() - tail;
+    stop = stop > diff ? stop - diff : 0;
+  }
+
+  if( sc.forward == true )
+  {
+    for( uint i = start; i <= stop; i++ )
+    {
+      int result;
+      if( sc.ignoreCase == true )
+      {
+	result = strncasecmp( &data()[i], sc.key.data(), sc.key.size() );
+      }
+      else
+      {
+	result = memcmp( &data()[i], sc.key.data(), sc.key.size() );
+      }
+      if( result == 0 )
+      {
+	if( i != cursorOffset() || mMark.size() != sc.key.size() )
+	{
+	  sc.match = true;
+	  cursorGoto( i, 7 );
+	  markSet( i, sc.key.size() );
+	  return( Err_Success );
+	}
+      }
+    }
+    return( start > head ? Err_WrapBuffer : Err_NoData );
+  }
+  else
+  {
+    for( uint i = stop; i >= start; i-- )
+    {
+      int result;
+      if( sc.ignoreCase == true )
+      {
+	result = strncasecmp( &data()[i], sc.key.data(), sc.key.size() );
+      }
+      else
+      {
+	result = memcmp( &data()[i], sc.key.data(), sc.key.size() );
+      }
+      if( result == 0 )
+      {	
+	if( i != cursorOffset() || mMark.size() != sc.key.size() )
+	{
+	  sc.match = true;
+	  cursorGoto( i, 7 );
+	  markSet( i, sc.key.size() );
+	  return( Err_Success );
+	}
+      }
+      if( i == 0 ) { break; }
+    }
+
+    return( stop + sc.key.size() <= tail ? Err_WrapBuffer : Err_NoData );
+  }
+}
+
+
+
+
+
+int CHexBuffer::filter( SFilterControl &fc )
+{
+  uint head, tail;
+  if( fc.inSelection == true )
+  {
+    if( mSelect.valid() == false )
+    {
+      return( Err_NoSelection );
+    }
+
+    head = mSelect.start();
+    tail = mSelect.stop();
+  }
+  else
+  {
+    head = 0;
+    tail = documentSize();
+  }
+
+  uint start, stop;
+  if( fc.fromCursor == false )
+  {
+    start = head;
+    stop  = tail;
+  }
+  else if( fc.forward == true )
+  {
+    start = cursorOffset() < head ? head : cursorOffset();
+    stop  = tail;
+  }
+  else
+  {
+    start = head;
+    stop  = cursorOffset() > tail ? tail : cursorOffset();
+  }
+
+  if( mInputMode.noInput() == true )
+  {
+    inputSound();
+    return( Err_WriteProtect );
+  }
+
+  if( start >= stop ) { return( Err_IllegalRange ); }
+  QByteArray buf( stop - start );
+  if( buf.isEmpty() == true ) { return( Err_NoMemory ); }
+
+  int errCode = fc.execute((uchar*)&buf[0],(uchar*)&data()[start],buf.size());
+  if( errCode == Err_Success )
+  {
+    recordStart( mCursor );
+    cursorGoto( start, 7 );
+    recordReplace( mCursor, buf.size(), buf.data(), buf.size() );
+    recordEnd( mCursor );
+  }
+
+  return( errCode );
+}
+
+
+
+int CHexBuffer::collectStrings( CStringCollectControl &sc )
+{
+  uint startOffset = 0;
+  uint start, i;
+  bool on = false;
+
+  if( sc.minLength < 1 ) { sc.minLength = 1; }
+
+  start = startOffset;
+  for( i = startOffset; i<documentSize(); i++ )
+  {
+    unsigned char item = data()[i];
+    if( isprint( item ) == 0 || item >= 128 )
+    {
+      if( on == true && i-start >= sc.minLength )
+      {
+	QByteArray a( i-start );
+	for( uint j=0; j<(i-start); a[j]=data()[start+j], j++ );
+	sc.add( start, a );
+      }
+      on = false;
+    }
+    else
+    {
+      if( on == false ) { start = i; }
+      on = true;
+    }
+  }
+
+  if( on == true && i-start >= sc.minLength )
+  {
+    QByteArray a( i-start );
+    for( uint j=0; j<(i-start); a[j]=data()[start+j], j++ );
+    sc.add( start, a );
+  }
+
+  return( Err_Success );
+}
+
+
+int CHexBuffer::collectStatistic( SStatisticControl &sc, CProgress &p )
+{
+  sc.documentSize = documentSize();
+  sc.documentName = mUrl;
+
+  for( uint i = 0; i<documentSize(); i++ )
+  {
+    sc.occurrence[ (unsigned char)data()[i] ] += 1;
+
+    //
+    // The expired() function introduces too much overhead in this case
+    // so it is only executed every 100'th character
+    //
+    if( i % 100 == 0 && p.expired() == true )
+    {
+      int errCode = p.step( (float)i/(float)documentSize() );
+      if( errCode == Err_Stop && i+1 < documentSize() )
+      {
+	p.finish();
+	return( Err_OperationAborted );
+      }
+    }
+  }
+  p.finish();
+  return( Err_NoErr );
+}
+
+
+void CHexBuffer::doActionGroup( CHexActionGroup *group )
+{
+  if( group == 0 )
+  {
+    return;
+  }
+
+  CHexAction *action = group->mHexAction;
+  group->mHexAction = 0;
+
+  while( action != 0 )
+  {
+    doAction( action );
+    CHexAction *next = action->mNext;
+    group->insertAction( action );
+    action = next;
+  }
+
+  computeNumLines();
+}
+
+
+void CHexBuffer::doAction( CHexAction *action )
+{
+  if( action->mAction == CHexAction::replace )
+  {
+    doReplace( action, true );
+  }
+}
+
+
+
+
+
+void CHexBuffer::recordStart( SCursor &cursor )
+{
+  //
+  // Step 1: Remove any undo element that is more recent than the
+  // current undo index
+  //
+  while( mUndoList.count() > mUndoIndex )
+  {
+    mUndoList.removeLast();
+  }
+
+  //
+  // Step 2: Make sure the undo list is no larger than the undo limit.
+  // We remove the oldest elements in the list.
+  //
+  while( mUndoList.count() >= mUndoLimit )
+  {
+    mUndoList.removeFirst();
+    mUndoIndex -= 1;
+  }
+
+  CHexActionGroup *group = new CHexActionGroup( cursor.curr.offset,
+						cursor.bit() );
+  if( group == 0 )
+  {
+    return;
+  }
+
+  mUndoList.append( group );
+  mUndoIndex += 1;
+}
+
+
+void CHexBuffer::recordReplace( SCursor &cursor, uint size, char *data1,
+				uint data1Size )
+{
+  CHexAction *hexAction = new CHexAction( CHexAction::replace,
+					  cursor.curr.offset );
+  if( hexAction == 0 )
+  {
+    return;
+  }
+
+  hexAction->mSize = size;
+  hexAction->mData = data1;
+  hexAction->mDataSize = data1Size;
+
+  doReplace( hexAction, false );
+  mUndoList.getLast()->insertAction( hexAction );
+
+  if( mCursor.curr.offset < documentSize() )
+  {
+    mCursor.curr.data = data()[ mCursor.curr.offset ];
+  }
+
+}
+
+void CHexBuffer::recordEnd( SCursor &cursor )
+{
+  mUndoList.getLast()->mStopOffset = cursor.curr.offset;
+  mUndoList.getLast()->mStopBit = cursor.bit();
+}
+
+
+//
+// This method is the only place where the doucument data can be changed.
+//
+void CHexBuffer::doReplace( CHexAction *hexAction, bool removeData )
+{
+  uint offset   = hexAction->mOffset;
+  uint oldSize  = hexAction->mSize;
+  char *newData = hexAction->mData;
+  uint newSize  = hexAction->mDataSize;
+
+  hexAction->setData( newSize, &data()[offset], oldSize );
+
+  //
+  // Input new data. Resize buffer first if necessary. We always mark the
+  // data as changed (dirty) when the buffer is resized, otherwise only
+  // when the new data differ from the current. Nice feature :-)
+  //
+  int errCode;
+  if( newSize > oldSize )
+  {
+    errCode = moveBuffer( offset + newSize - oldSize, offset );
+    mDocumentModified = true;
+  }
+  else if( newSize < oldSize )
+  {
+    errCode = moveBuffer( offset, offset + oldSize - newSize );
+    mDocumentModified = true;
+  }
+  else
+  {
+    errCode = Err_Success;
+    if( memcmp( &data()[offset], newData, newSize ) != 0 )
+    {
+      mDocumentModified = true;
+    }
+  }
+
+  if( errCode == Err_Success )
+  {
+    memcpy( &data()[offset], newData, newSize );
+  }
+
+  //
+  // Data is removed regardless of success or not. Otherwise we will
+  // have a mmeory leak. The single reason why the operation above could
+  // fail is because there was that no more memory that could be
+  // allocated.
+  //
+  if( removeData == true )
+  {
+    delete [] newData;
+  }
+
+}
+
+
+bool CHexBuffer::inputDummy( unsigned char *dest, int value, uint cell )
+{
+  (void)dest;
+  (void)value;
+  (void)cell;
+  return( false );
+}
+
+
+bool CHexBuffer::inputHexadecimal( unsigned char *dest, int value, uint cell )
+{
+  if( value >= '0' && value <= '9' )
+  {
+    value = value - '0';
+  }
+  else if( value >= 'A' && value <= 'F' )
+  {
+    value = value - 'A' + 10;
+  }
+  else if( value >= 'a' && value <= 'f' )
+  {
+    value = value - 'a' + 10;
+  }
+  else
+  {
+    return( false );
+  }
+
+  if( cell > 1 )
+  {
+    return( false );
+  }
+
+  uint shift = 1 - cell;
+  *dest = (*dest & ~(0xF<<(shift*4)) ) | (value<<(shift*4));
+  return( true );
+}
+
+
+bool CHexBuffer::inputDecimal( unsigned char *dest, int value, uint cell )
+{
+  //
+  // 2000-01-22 Espen Sand
+  // I do the insertion a bit different here since decimal is special
+  // with respect to bitwidths.
+  //
+  if( value < '0' || value > '9' || cell > 2 )
+  {
+    return( false );
+  }
+
+  char buf[4];
+  printDecimalCell( buf, *dest );
+  buf[cell]=value;
+  buf[3]=0;
+
+  int tmp = atoi(buf);
+  if( tmp > 255 )
+  {
+    return( false );
+  }
+
+  *dest = tmp;
+  return( true );
+}
+
+
+bool CHexBuffer::inputOctal( unsigned char *dest, int value, uint cell )
+{
+  if( value >= '0' && value <= '7' )
+  {
+    value = value - '0';
+    if( cell == 0 && value > 3 )
+    {
+      return( false );
+    }
+  }
+  else
+  {
+    return( false );
+  }
+
+  if( cell >= 3 )
+  {
+    return( false );
+  }
+
+  uint shift = 2 - cell;
+  *dest = (*dest & ~(0x7<<(shift*3)) ) | (value<<(shift*3));
+  return( true );
+}
+
+
+bool CHexBuffer::inputBinary( unsigned char *dest, int value, uint cell )
+{
+  if( value >= '0' && value <= '1' )
+  {
+    value = value - '0';
+  }
+  else
+  {
+    return( false );
+  }
+
+  if( cell > 7 )
+  {
+    return( false );
+  }
+
+  uint shift = 7 - cell;
+  *dest = (*dest & ~(1<<shift)) | (value<<shift);
+  return( true );
+}
+
+
+
+bool CHexBuffer::inputAscii( unsigned char *dest, int value, uint )
+{
+  *dest = value;
+  return( true );
+}
+
+
+
+int CHexBuffer::moveBuffer( uint destOffset, uint srcOffset )
+{
+  if( srcOffset > documentSize() || destOffset == srcOffset )
+  {
+    return( Err_Success );
+  }
+
+  if( destOffset < srcOffset )
+  {
+    char *dest = &data()[ destOffset ];
+    char *src  = &data()[ srcOffset ];
+
+    memmove( dest, src, documentSize() - srcOffset );
+    setDocumentSize( documentSize() - (srcOffset - destOffset) );
+    return( Err_Success );
+  }
+  else
+  {
+    uint s = documentSize() - srcOffset;
+    if( destOffset + s >= size() )
+    {
+      int errCode = resizeBuffer( destOffset + s );
+      if( errCode != Err_Success )
+      {
+	fatalSound();
+	return( errCode );
+      }
+    }
+    else
+    {
+      setDocumentSize( documentSize() + (destOffset - srcOffset) );
+    }
+
+    char *dest = &data()[ destOffset ];
+    char *src  = &data()[ srcOffset ];
+
+    memmove( dest, src, s );
+    memset( src, 0, destOffset - srcOffset );
+    return( Err_Success );
+  }
+}
+
+
+
+
+int CHexBuffer::resizeBuffer( uint newSize )
+{
+  if( newSize < documentSize() )
+  {
+    return( Err_Success );
+  }
+
+  if( newSize >= size() )
+  {
+    QByteArray tmp;
+    tmp.duplicate( data(), size() );
+    if( tmp.isNull() == true )
+    {
+      return( Err_NoMemory );
+    }
+
+    if( fill( '\0', newSize + 100 ) == false )
+    {
+      return( Err_NoMemory );
+    }
+
+    memcpy( data(), &tmp[0], tmp.size() );
+  }
+
+  setDocumentSize( newSize );
+  return( Err_Success );
+}
+
+
+void CHexBuffer::inputSound( void )
+{
+  if( mInputErrorSound == true )
+  {
+    KNotifyClient::beep( QObject::tr("Edit operation failed") );
+  }
+}
+
+
+void CHexBuffer::fatalSound( void )
+{
+  if( mFatalErrorSound == true )
+  {
+    KNotifyClient::beep( QObject::tr("Could not allocate memory") );
+  }
+}
+
+
+int CHexBuffer::printHtmlDataPage( const QString &tocName,
+				   const QStringList &fileNames, uint index,
+				   const SExportHtml &ex,
+				   uint line, uint numLine )
+{
+  if( fileNames.count() == 0 )
+  {
+    return( Err_NullArgument );
+  }
+
+  if( index >= fileNames.count() )
+  {
+    index = fileNames.count()-1;
+  }
+
+  QFile file( fileNames[index] );
+  if( file.open( IO_WriteOnly ) == false )
+  {
+    return( Err_OperationAborted );
+  }
+
+  QTextStream os( &file );
+  const QString *next = index+1 >= fileNames.count() ? 0 : &fileNames[index+1];
+  const QString *prev = index == 0 ? 0 : &fileNames[index-1];
+  const QString *toc  = tocName.length() == 0 ? 0 : &tocName;
+
+  printHtmlHeader( os, true );
+  if( ex.navigator == true )
+  {
+    printHtmlNavigator( os, next, prev, toc );
+  }
+
+  printHtmlCaption( os, ex.topCaption, index+1, fileNames.count() );
+  printHtmlTable( os, line, numLine, ex.blackWhite );
+  printHtmlCaption( os, ex.bottomCaption, index+1, fileNames.count() );
+
+  if( ex.navigator == true )
+  {
+    printHtmlNavigator( os, next, prev, toc );
+  }
+  printHtmlHeader( os, false );
+
+  return( Err_Success );
+}
+
+
+void CHexBuffer::printHtmlTocPage( const QString &tocName,
+				   const QString &linkName,
+				   const QStringList &fileNames,
+				   const QStringList &offsets,
+				   uint numPage )
+{
+  if( numPage == 0 || fileNames.count() == 0 )
+  {
+    return;
+  }
+  if( numPage >= fileNames.count() )
+  {
+    numPage = fileNames.count() - 1;
+  }
+
+  QFile file( tocName );
+  if( file.open( IO_WriteOnly ) == false )
+  {
+    return;
+  }
+
+  QTextStream os( &file );
+  printHtmlHeader( os, true );
+
+  os << "<P ALIGN=\"CENTER\">" << endl;
+  os << "<B><FONT COLOR=BLACK>" << endl;
+  os << mUrl << endl;
+  os << "</FONT></B></CAPTION>" << endl;
+  os << "</P>" << endl;
+
+  os << "<P ALIGN=\"CENTER\"><TT>" << endl;
+  for( uint i=0; i<=numPage; i++ )
+  {
+    QString n( fileNames[i].right( fileNames[i].length() -
+				   fileNames[i].findRev('/') - 1) );
+    os << "<A HREF=\"" << n << "\">" << i18n("Page") << i+1;
+    os << "</A>";
+    os << " " << offsets[i];
+    os << "<br>" << endl;
+  }
+  os << "</P>" << endl;
+
+  printHtmlHeader( os, false );
+
+  if( linkName.isEmpty() == false )
+  {
+    //
+    // Make a symlink. We ignore any error here. I don't consider
+    // it to be fatal.
+    //
+    QString n( tocName.right( tocName.length() - tocName.findRev('/') - 1) );
+    symlink( n.latin1(), linkName.latin1() );
+  }
+
+}
+
+
+
+void CHexBuffer::printHtmlCaption( QTextStream &os, uint captionType,
+				   uint curPage, uint numPage )
+{
+  QString caption;
+  switch( captionType )
+  {
+    case 0:
+      return;
+    break;
+
+    case 1:
+      caption = mUrl;
+    break;
+
+    case 2:
+      caption = mUrl.right( mUrl.length() - mUrl.findRev('/') - 1);
+    break;
+
+    case 3:
+      caption = i18n("Page %1 of %2").arg(curPage).arg(numPage);
+    break;
+  }
+
+  os << "<P ALIGN=\"CENTER\">" << endl;
+  os << "<B><FONT COLOR=BLACK>" << endl;
+  os << caption << endl;
+  os << "</FONT></B></CAPTION>" << endl;
+  os << "</P>" << endl;
+}
+
+
+
+void CHexBuffer::printHtmlNavigator( QTextStream &os, const QString *next,
+				     const QString *prev, const QString *toc )
+{
+  os << "<TABLE BORDER=\"0\" CELLSPACING=\"0\" WIDTH=\"100%\">" << endl;
+  os << "<TR>" << endl;
+  os << "<TD>" << endl;
+  if( next == 0 )
+  {
+    os << i18n("Next") << " ";
+  }
+  else
+  {
+    QString n( next->right( next->length() - next->findRev('/') - 1) );
+    os << "<A HREF=\"" << n << "\">" << i18n("Next") << "</A>" << " ";
+  }
+
+  if( prev == 0 )
+  {
+    os << i18n("Previous") << " ";
+  }
+  else
+  {
+    QString p( prev->right( prev->length() - prev->findRev('/') - 1) );
+    os << "<A HREF=\"" << p << "\">" << i18n("Previous") << "</A>" << " ";
+  }
+
+  if( toc == 0 )
+  {
+    os << i18n("Contents") << " ";
+  }
+  else
+  {
+    QString t( toc->right( toc->length() - toc->findRev('/') - 1) );
+    os << "<A HREF=\"" << t << "\">" << i18n("Contents");
+    os << "</A>" << " ";
+  }
+
+  os << "</TD>" << endl;
+
+  os << "<TD ALIGN=\"RIGHT\">" << endl;
+  os << "<A HREF=\"" << "http://home.sol.no/~espensa/khexedit" << "\">";
+  os << i18n("Generated by khexedit");
+  os << "</A>" << " ";
+
+  os << "</TD>" << endl;
+  os << "</TR>" << endl << "</TABLE>" << endl;
+}
+
+
+int CHexBuffer::printHtmlHeader( QTextStream &os, bool isFront )
+{
+  if( isFront == true )
+  {
+    os << "<HTML>" << endl << "<HEAD>" << endl;
+    os << "<META HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; ";
+    os << "charset=iso-8859-1\">" << endl;
+    os << "<META NAME=\"hexdata\" CONTENT=\"khexedit dump\">" << endl;
+    os << "</HEAD>" << endl << "<BODY>" << endl;
+  }
+  else
+  {
+    os << "</BODY>" << endl << "</HTML>" << endl;
+  }
+
+  return( Err_Success );
+}
+
+
+int CHexBuffer::printHtmlTable( QTextStream &os, uint line, uint numLine,
+				bool bw )
+{
+  uint i;
+  QColor color;
+
+
+  int numCol = 1;
+  if( mLayout.offsetVisible == true ) { numCol += 1; }
+  if( mLayout.secondaryMode != SDisplayLayout::hide ) { numCol += 1; }
+
+  os << "<TABLE BORDER=1 COLS=" << numCol << " WIDTH=\"100%\" ";
+  os << "CELLSPACING=0 CELLPADDING=2>" << endl;
+  if( mLayout.offsetVisible == true )
+  {
+    color = bw == true ? Qt::white : mColor.offsetBg;
+    os << "<TD BGCOLOR=" << color.name().latin1() << ">" << endl;
+    os << "<TABLE BORDER=0 COLS=1 WIDTH=\"100%\" ";
+    os << "CELLSPACING=0 CELLPADDING=2>" << endl;
+
+    color = bw == true ? Qt::black : mColor.offsetFg;
+    for( i=0; i<numLine; i++ )
+    {
+      os << "<TR><TD><TT><b><FONT COLOR=" << color.name().latin1() << ">";
+      THIS_FPTR(printOffset)( mPrintBuf, (line+i)*mLayout.lineSize );
+      mPrintBuf[mOffsetSize]=0;
+      os << mPrintBuf << "</TD></TR>" << endl;
+    }
+    os << "</TABLE>" << endl << "</TD>" << endl;
+  }
+
+  color = bw == true ? Qt::white : mColor.textBg;
+  os << "<TD BGCOLOR=" << color.name().latin1()  << ">" << endl;
+  os << "<TABLE BORDER=0 COLS=1 WIDTH=\"100%\" ";
+  os << "CELLSPACING=0 CELLPADDING=2>" << endl;
+  for( i=0; i<numLine; i++ )
+  {
+    printHtmlLine( os, line+i, true, bw );
+  }
+  os << "</TABLE>" << endl << "</TD>" << endl;
+
+  if( mLayout.secondaryMode != SDisplayLayout::hide )
+  {
+    color = bw == true ? Qt::white : mColor.textBg;
+    os << "<TD BGCOLOR=" << color.name().latin1() << ">" << endl;
+    os << "<TABLE BORDER=0 COLS=1 WIDTH=\"100%\" ";
+    os << "CELLSPACING=0 CELLPADDING=2>" << endl;
+    for( i=0; i<numLine; i++ )
+    {
+      printHtmlLine( os, line+i, false, bw );
+    }
+    os << "</TABLE>" << endl << "</TD>" << endl;
+  }
+
+  os << "</TR>" << endl << "</TABLE>" << endl;
+  return( Err_Success );
+}
+
+
+int CHexBuffer::printHtmlLine( QTextStream &os, uint line, bool isPrimary,
+			       bool bw )
+{
+  uint offset  = line * mLayout.lineSize;
+  QColor prevColor;
+
+  QColor color;
+  if( bw == true )
+  {
+    color = Qt::white;
+  }
+  else
+  {
+    color = (line+1) % 2 ? mColor.textBg : mColor.secondTextBg;
+  }
+
+  os << "<TR><TD NOWRAP BGCOLOR=" << color.name().latin1() << "><TT><B>"
+     << endl;
+  if( offset >= documentSize() )
+  {
+    os << "<BR></TD></TR>" << endl;
+    return( Err_Success );
+  }
+
+  for( uint i=0; i < mLayout.lineSize; i++ )
+  {
+    if( isPrimary == true )
+    {
+      if( offset+i >= documentSize() )
+      {
+	memset(mPrintBuf, ' ', mNumCell );	
+	mPrintBuf[mNumCell] = 0;
+	if( i == 0 )
+	{
+	  color = bw == true ? Qt::black : foregroundColor(i);
+	}
+	else
+	{
+	  color = prevColor;
+	}
+      }
+      else
+      {
+	unsigned char val = (unsigned char)data()[offset+i];
+	if( THIS_FPTR(printCell)( mPrintBuf, val ) == 0 )
+	{
+	  color = bw == true ? Qt::black : foregroundColor(i);
+	}
+	else
+	{
+	  color = bw == true ? Qt::black : mColor.nonPrintFg;
+	}
+      }
+      mPrintBuf[mNumCell] = 0;
+      if( i == 0 )
+      {
+	os << "<FONT COLOR=" << color.name().latin1() << ">";
+      }
+      else if( color != prevColor )
+      {
+	os << "</FONT><FONT COLOR=" << color.name().latin1() << ">";
+      }
+      prevColor = color;
+
+      if( mPrintBuf[0] == '<' )
+      {
+	os << "&lt;";
+      }
+      else
+      {
+	os << mPrintBuf;
+	if( (i+1) % mLayout.columnSize == 0 && (i+1) != mLayout.lineSize )
+	{
+	  os << " ";
+	}
+      }
+    }
+    else
+    {
+      if( offset+i >= documentSize() )
+      {
+	memset(mPrintBuf, ' ', 1 );
+	if( i == 0 )
+	{
+	  color = bw == true ? Qt::black : mColor.secondaryFg;
+	}
+	else
+	{
+	  color = prevColor;
+	}
+      }
+      else
+      {
+	unsigned char val = (unsigned char)data()[offset+i];
+	if( printAsciiCell( mPrintBuf, val ) == 0 )
+	{
+	  color = bw == true ? Qt::black : mColor.secondaryFg;
+	}
+	else
+	{
+	  color = bw == true ? Qt::black : mColor.nonPrintFg;
+	}
+	mPrintBuf[1] = 0;
+
+	if( i == 0 )
+	{
+	  os << "<FONT COLOR=" << color.name().latin1() << ">";
+	}
+	else if( color != prevColor )
+	{
+	  os << "</FONT><FONT COLOR=" << color.name().latin1()  << ">";
+	}
+	prevColor = color;
+	
+	mPrintBuf[1] = 0;
+	os << (mPrintBuf[0] == '<' ? "&lt;" : mPrintBuf);
+      }
+
+    }
+  }
+  os << "</TD></TR>" << endl;
+  return( Err_Success );
+}
+
+
+
+
+