/// <summary>
/// Add/Modifiy a ByteModifed in the list of byte have deleted
/// </summary>
public void AddByteDeleted(long bytePositionInFile, long length)
{
long position = bytePositionInFile;
for (int i = 0; i < length; i++)
{
if (i % 100 == 0)
{
Application.Current.DoEvents();
}
ByteModified bytemodifiedOriginal = CheckIfIsByteModified(position, ByteAction.All);
if (bytemodifiedOriginal != null)
{
_byteModifiedList.Remove(bytemodifiedOriginal);
}
ByteModified byteModified = new ByteModified();
byteModified.Byte = new byte();
byteModified.UndoLenght = length;
byteModified.BytePositionInFile = position;
byteModified.Action = ByteAction.Deleted;
_byteModifiedList.Add(byteModified);
position++;
}
}
/// <summary>
/// Get if file is open
/// </summary>
public static bool CheckIsValid(ByteModified byteModified)
{
if (byteModified != null)
{
if (byteModified.IsValid)
{
return(true);
}
}
return(false);
}
/// <summary>
/// Copy Current instance to another
/// </summary>
/// <returns></returns>
public ByteModified GetCopy()
{
ByteModified newByteModified = new ByteModified();
object copied = null;
newByteModified.Action = Action;
newByteModified.Byte = Byte; //.Value;
newByteModified.BytePositionInFile = BytePositionInFile;
copied = newByteModified;
return((ByteModified)copied);
}
/// <summary>
/// Undo last byteaction
/// </summary>
public void Undo()
{
if (CanUndo)
{
ByteModified last = _byteModifiedList.Last <ByteModified>();
for (int i = 0; i < last.UndoLenght; i++)
{
_byteModifiedList.RemoveAt(_byteModifiedList.Count - 1);
}
Undone?.Invoke(this, new EventArgs());
}
}
/// <summary>
/// Add/Modifiy a ByteModifed in the list of byte have changed
/// </summary>
public void AddByteModified(byte? @byte, long bytePositionInFile, long undoLenght = 1)
{
ByteModified bytemodifiedOriginal = CheckIfIsByteModified(bytePositionInFile, ByteAction.Modified);
if (bytemodifiedOriginal != null)
{
_byteModifiedList.Remove(bytemodifiedOriginal);
}
ByteModified byteModified = new ByteModified();
byteModified.Byte = @byte;
byteModified.UndoLenght = undoLenght;
byteModified.BytePositionInFile = bytePositionInFile;
byteModified.Action = ByteAction.Modified;
_byteModifiedList.Add(byteModified);
}
/// <summary>
/// Copies the current selection in the hex box to the Clipboard.
/// </summary>
/// <param name="copyChange">Set tu true if you want onclude change in your copy. Set to false to copy directly from source</param>
private byte[] GetCopyData(long selectionStart, long selectionStop, bool copyChange)
{
//Validation
if (!CanCopy(selectionStart, selectionStop))
{
return(new byte[0]);
}
if (selectionStop == -1 || selectionStop == -1)
{
return(new byte[0]);
}
//Variable
long byteStartPosition = -1;
List <byte> bufferList = new List <byte>();
//Set start position
if (selectionStart == selectionStop)
{
byteStartPosition = selectionStart;
}
else if (selectionStart > selectionStop)
{
byteStartPosition = selectionStop;
}
else
{
byteStartPosition = selectionStart;
}
//set position
_stream.Position = byteStartPosition;
//Exclude byte deleted from copy
if (!copyChange)
{
byte[] buffer = new byte[GetSelectionLenght(selectionStart, selectionStop)];
_stream.Read(buffer, 0, Convert.ToInt32(GetSelectionLenght(selectionStart, selectionStop)));
return(buffer);
}
else
{
for (int i = 0; i < GetSelectionLenght(selectionStart, selectionStop); i++)
{
ByteModified byteModified = CheckIfIsByteModified(_stream.Position, ByteAction.All);
if (byteModified == null)
{
bufferList.Add((byte)_stream.ReadByte());
continue;
}
else
{
switch (byteModified.Action)
{
case ByteAction.Added:
//TODO : IMPLEMENTING ADD BYTE
break;
case ByteAction.Deleted:
//NOTHING TODO we dont want to add deleted byte
break;
case ByteAction.Modified:
if (byteModified.IsValid)
{
bufferList.Add(byteModified.Byte.Value);
}
break;
}
}
_stream.Position++;
}
}
return(bufferList.ToArray());
}
