void HexBox_OnWrite(object sender, HexBoxWriteEventArgs e)
{
var hexBox = (HexBox)sender;
var doc = hexBox.Document;
if (doc == null)
{
return;
}
if (e.IsBeforeWrite)
{
var info = new UndoInfo();
info.OriginalData = hexBox.Document.ReadBytes(e.StartOffset, e.Size);
info.OriginalCaretPosition = hexBox.CaretPosition;
e.Context[contextKey] = info;
}
else
{
var info = (UndoInfo)e.Context[contextKey];
bool updated = TryUpdateOldTextInputCommand(e.Type, hexBox, info.OriginalCaretPosition, e.StartOffset, info.OriginalData);
if (!updated)
{
ClearTextInputCommand();
var cmd = new HexBoxUndoCommand(hexBox, info.OriginalCaretPosition, e.StartOffset, info.OriginalData, GetDescription(e));
undoCommandService.Add(cmd);
if (e.Type == HexWriteType.ByteInput || e.Type == HexWriteType.AsciiInput)
{
SetTextInputCommand(cmd);
}
}
}
}
void Buffer_Changed(object sender, HexContentChangedEventArgs e)
{
if (e.EditTag == HexBufferUndoRedo.UndoRedoObject)
{
return;
}
var buffer = (HexBuffer)sender;
var desc = dnSpy_AsmEditor_Resources.Hex_Undo_Message_InsertBytes;
var cmd = new HexBufferUndoCommand(buffer, e.Changes, e.BeforeVersion.ReiteratedVersionNumber, e.AfterVersion.ReiteratedVersionNumber, desc);
undoCommandService.Add(cmd);
}
public static void AddAndExecute(IUndoCommandService undoCommandService, HexDocument doc, ulong offset, byte[] data, string descr = null)
{
if (doc == null)
{
throw new ArgumentNullException(nameof(doc));
}
if (data == null || data.Length == 0)
{
return;
}
undoCommandService.Add(new WriteHexUndoCommand(doc, offset, data, descr));
}