public static void Backspace(HexEditorData data)
{
if (data.IsSomethingSelected)
{
data.DeleteSelection();
return;
}
if (data.Caret.Offset == 0)
{
return;
}
data.ByteBuffer.Remove(data.Caret.Offset - 1, 1);
data.Caret.Offset--;
}
public static void Delete(HexEditorData data)
{
if (data.IsSomethingSelected)
{
data.DeleteSelection();
return;
}
if (data.Caret.Offset >= data.Length)
{
return;
}
data.ByteBuffer.Remove(data.Caret.Offset, 1);
data.UpdateLine(data.Caret.Line);
}
void InsertCharacter(uint unicodeChar)
{
char ch = (char)unicodeChar;
if (HexEditorData.IsSomethingSelected)
{
HexEditorData.DeleteSelection();
}
if (HexEditorData.Caret.InTextEditor)
{
if ((char.IsLetterOrDigit(ch) || char.IsPunctuation(ch) || ch == ' ') && unicodeChar <= 255)
{
if (HexEditorData.Caret.IsInsertMode)
{
HexEditorData.Insert(HexEditorData.Caret.Offset, (byte)unicodeChar);
}
else
{
HexEditorData.Replace(HexEditorData.Caret.Offset, 1, (byte)unicodeChar);
}
Editor.Margins.ForEach(margin => margin.PurgeLayoutCache());
CaretMoveActions.Right(HexEditorData);
}
}
else
{
string hex = "0123456789ABCDEF";
int idx = hex.IndexOf(char.ToUpper(ch));
if (idx >= 0)
{
if (HexEditorData.Caret.Offset >= HexEditorData.Length)
{
HexEditorData.Insert(HexEditorData.Length, 0);
}
if (HexEditorData.Caret.IsInsertMode && HexEditorData.Caret.SubPosition == 0)
{
HexEditorData.Insert(HexEditorData.Caret.Offset, (byte)(idx * 0x10));
}
else
{
byte cur = HexEditorData.GetByte(HexEditorData.Caret.Offset);
int newByte = HexEditorData.Caret.SubPosition == 0 ? cur & 0xF | idx * 0x10 : cur & 0xF0 | idx;
HexEditorData.Replace(HexEditorData.Caret.Offset, 1, (byte)newByte);
}
Editor.Margins.ForEach(margin => margin.PurgeLayoutCache());
CaretMoveActions.Right(HexEditorData);
}
}
}