Method undo

src/commands.cpp:56–72

}

void CharCommand::undo()
{
    switch (_cmd)
    {
        case insert:
            _chunks->removeAt(_charPos);
            break;
        case overwrite:
            _chunks->overwrite(_charPos, _oldChar);
            _chunks->setDataChanged(_charPos, _wasChanged);
            break;
        case removeAt:
            _chunks->insert(_charPos, _oldChar);
            _chunks->setDataChanged(_charPos, _wasChanged);
            break;
    }
}

void CharCommand::redo()
{