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));
undoCommandManager.Add(cmd);
if (e.Type == HexWriteType.ByteInput || e.Type == HexWriteType.AsciiInput)
SetTextInputCommand(cmd);
}
}
}
Dictionary<object, object> NotifyWrite(HexWriteType type, ulong offs, int count, bool isBeforeWrite, Dictionary<object, object> context)
{
var ea = new HexBoxWriteEventArgs(type, offs, count, isBeforeWrite, context);
if (OnWrite != null)
OnWrite(this, ea);
return ea.Context;
}
static string GetDescription(HexBoxWriteEventArgs e) {
switch (e.Type) {
case HexWriteType.Paste: return string.Format(dnSpy_AsmEditor_Resources.Hex_Undo_Message_PasteBytesAtAddress, e.Size, e.StartOffset);
case HexWriteType.ByteInput: return dnSpy_AsmEditor_Resources.Hex_Undo_Message_InsertBytes;
case HexWriteType.AsciiInput: return dnSpy_AsmEditor_Resources.Hex_Undo_Message_InsertASCII;
case HexWriteType.Fill: return string.Format(dnSpy_AsmEditor_Resources.Hex_Undo_Message_FillBytesAtAddress, e.Size, e.StartOffset);
default: return null;
}
}
