1 files changed, 80 insertions, 0 deletions
diff --git a/khexedit/lib/codecs/kbinarybytecodec.cpp b/khexedit/lib/codecs/kbinarybytecodec.cpp
new file mode 100644
index 0000000..d665a05
--- /dev/null
+++ b/khexedit/lib/codecs/kbinarybytecodec.cpp
@@ -0,0 +1,80 @@
+/***************************************************************************
+                          kbinarybytecodec.cpp  -  description
+                             -------------------
+    begin                : Mo Nov 29 2004
+    copyright            : (C) 2004 by Friedrich W. H. Kossebau
+    email                : Friedrich.W.H@Kossebau.de
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This library is free software; you can redistribute it and/or         *
+ *   modify it under the terms of the GNU Library General Public           *
+ *   License version 2 as published by the Free Software Foundation.       *
+ *                                                                         *
+ ***************************************************************************/
+
+
+// lib specific
+#include "kbinarybytecodec.h"
+
+using namespace KHE;
+
+
+void KBinaryByteCodec::encode( QString &Digits, unsigned int Pos, const unsigned char Char ) const
+{
+  for( unsigned char M=1<<7; M>0; M>>=1 )
+    Digits.at(Pos++) = (Char & M) ? '1' : '0';
+}
+
+void KBinaryByteCodec::encodeShort( QString &Digits, unsigned int Pos, unsigned char Char ) const
+{
+  unsigned char M = 1<<7;
+  // find first set bit
+  for( ; M>0; M>>=1 )
+    if( Char & M )
+      break;
+  // now set the
+  for( ; M>0; M>>=1 )
+    Digits.at(Pos++) = (Char & M) ? '1' : '0';
+}
+
+
+bool KBinaryByteCodec::isValidDigit( unsigned char Digit ) const
+{
+  return Digit == '0' || Digit == '1';
+}
+
+
+bool KBinaryByteCodec::turnToValue( unsigned char *Digit ) const
+{
+  if( isValidDigit(*Digit) )
+  {
+    *Digit -= '0';
+    return true;
+  }
+  return false;
+}
+
+
+bool KBinaryByteCodec::appendDigit( unsigned char *Byte, unsigned char Digit ) const
+{
+  if( turnToValue(&Digit) )
+  {
+    unsigned char B = *Byte;
+    if( B < 128 )
+    {
+      B <<= 1;
+      B += Digit;
+      *Byte = B;
+      return true;
+    }
+  }
+  return false;
+}
+
+
+void KBinaryByteCodec::removeLastDigit( unsigned char *Byte ) const
+{
+  *Byte >>= 1;
+}